The 5-HT 2A Receptor Antibody was raised against a multiple antigenic peptide of an N-terminal synthetic sequence corresponding to amino acids 22-41 of rat 5HT2A receptor. The antibody is provided as 100 uL of affinity purified serum in PBS (0.02 M sodium phosphate with 0.15 M sodium chloride, pH 7.5) with 1% BSA (bovine serum albumin), and 0.02% sodium azide. The antiserum demonstrates strongly positive labeling of rat cortex, amygdala and hippocampus using indirect immunofluorescent and biotin/avidin-HRP techniques. Recommended primary dilutions are 1/300 - 1/500 in PBS/0.03% Triton X-100 - Bn/Av-HRP Technique. The addition of intensifying reagents such as nickel ammonium sulfate to the chromogen solution will approximately double the dilution factor as recommended. Immunolabeling is completely abolished by preadsorption with synthetic rat 5HT2A receptor (22-41). Immunolabeling of Western blot revealed a single band of approximately 53kD.
Vimentin is the major subunit protein of the intermediate filaments of mesenchymal cells. It is believed to be involved with the intracellular transport of proteins between the nucleus and plasma membrane. Vimentin has been implicated to be involved in the rate of steroid synthesis via its role as a storage network for steroidogenic cholesterol containing lipid droplets. Vimentin phosphorylation by a protein kinase causes the breakdown of intermediate filaments and activation of an ATP and myosin light chain dependent contractile event. This results in cytoskeletal changes that facilitate the interaction of the lipid droplets within mitochondria, and subsequent transport of cholesterol to the organelles leading to an increase in steroid synthesis. Immunohistochemical staining for Vimentin is characteristic of sarcomas (of neural, muscle and fibroblast origin) compared to carcinomas which are generally negative. Melanomas, lymphomas and vascular tumors may all stain for Vimentin. Vimentin antibodies are thus of value in the differential diagnosis of undifferentiated neoplasms and malignant tumors. They are generally used with a panel of other antibodies including those recognising cytokeratins, lymphoid markers, S100, desmin and neurofilaments.
Vimentin is the major subunit protein of the intermediate filaments of mesenchymal cells. It is believed to be involved with the intracellular transport of proteins between the nucleus and plasma membrane. Vimentin has been implicated to be involved in the rate of steroid synthesis via its role as a storage network for steroidogenic cholesterol containing lipid droplets. Vimentin phosphorylation by a protein kinase causes the breakdown of intermediate filaments and activation of an ATP and myosin light chain dependent contractile event. This results in cytoskeletal changes that facilitate the interaction of the lipid droplets within mitochondria, and subsequent transport of cholesterol to the organelles leading to an increase in steroid synthesis. Immunohistochemical staining for Vimentin is characteristic of sarcomas (of neural, muscle and fibroblast origin) compared to carcinomas which are generally negative. Melanomas, lymphomas and vascular tumors may all stain for Vimentin. Vimentin antibodies are thus of value in the differential diagnosis of undifferentiated neoplasms and malignant tumors. They are generally used with a panel of other antibodies including those recognising cytokeratins, lymphoid markers, S100, desmin and neurofilaments.
Thyroid transcription factor, also called thyroid specific enhancer binding nuclear protein (38 kDa), that regulates transcription activity of thyroid (thyroglobulin, thyroid peroxidase, sodium-iodide transport protein, calcitonin and MHC class I) and lung (surfactant proteins A, B and C, Clara cell secretory protein). The expression of TTF1 is confined to follicular epithelial cells and the C-cells in the thyroid, and to the type II pneumocytes and the Clara cells in the lung. In tumor diagnostics TTF1 distinguish primary (TTF+) vs. metastatic (usually TTF1-) lung carcinoma (LCa), pulmonary adenoca (TTF1+) from squamous cell Ca (usually TTF1 -), pleural lung Ca (TTF1+) vs.mesothelioma (TTF1 - ) and pulmonary small cell Ca (TTF1+) vs. Mercel cell Ca (TTF - ). Mucinous lung adeno ca is usually TTF1 negative.
Thyroid transcription factor, also called thyroid specific enhancer binding nuclear protein (38 kDa), that regulates transcription activity of thyroid (thyroglobulin, thyroid peroxidase, sodium-iodide transport protein, calcitonin and MHC class I) and lung (surfactant proteins A, B and C, Clara cell secretory protein). The expression of TTF1 is confined to follicular epithelial cells and the C-cells in the thyroid, and to the type II pneumocytes and the Clara cells in the lung. In tumor diagnostics TTF1 distinguish primary (TTF+) vs. metastatic (usually TTF1-) lung carcinoma (LCa), pulmonary adenoca (TTF1+) from squamous cell Ca (usually TTF1 -), pleural lung Ca (TTF1+) vs.mesothelioma (TTF1 - ) and pulmonary small cell Ca (TTF1+) vs. Mercel cell Ca (TTF - ). Mucinous lung adeno ca is usually TTF1 negative.
Synaptophysin (p38) is an integral membrane protein of small synaptic vesicles in brain and endocrine cells.Synaptophysin contains four transmembrane domains that form a hexameric channel or gap junction-like pore. Synaptophysin binds to the SNARE protein synaptobrevin/VAMP, which prevents the inclusion of synaptobrevin in the synaptic vesicle fusion complex and creates a pool of synaptobrevin for exocytosis when synapse activity increases. Synaptophysin is also responsible for targeting synaptobrevin 2/VAMP2 to synaptic vesicles, a critical component of the fusion complex.
Synaptophysin (p38) is an integral membrane protein of small synaptic vesicles in brain and endocrine cells.Synaptophysin contains four transmembrane domains that form a hexameric channel or gap junction-like pore. Synaptophysin binds to the SNARE protein synaptobrevin/VAMP, which prevents the inclusion of synaptobrevin in the synaptic vesicle fusion complex and creates a pool of synaptobrevin for exocytosis when synapse activity increases. Synaptophysin is also responsible for targeting synaptobrevin 2/VAMP2 to synaptic vesicles, a critical component of the fusion complex.
SOX2 is a transcription factor which is a member of SRY-related HMG-box (SOX) family. It has a role in the regulation of embryonic development and pluripotency of stem cells. It can be useful especially in lung squamous cell carcinoma diagnostic with panel of other relative markers of squamous carcinoma like P63/P40 and CK5/CK14 for example.
SOX2 is a transcription factor which is a member of SRY-related HMG-box (SOX) family. It has a role in the regulation of embryonic development and pluripotency of stem cells. It can be useful especially in lung squamous cell carcinoma diagnostic with panel of other relative markers of squamous carcinoma like P63/P40 and CK5/CK14 for example.
This gene encodes a member of the SOX (SRY-related HMG-box) family of transcription factors involved in the regulation of embryonic development and in the determination of the cell fate. The encoded protein may act as a transcriptional activator after forming a protein complex with other proteins. This protein acts as a nucleocytoplasmic shuttle protein and is important for neural crest and peripheral nervous system development. SOX10 is important and sensitive marker of melanoma especially for spindle cell and desmoplastic melanomas and schwannian neoplasms.
This gene encodes a member of the SOX (SRY-related HMG-box) family of transcription factors involved in the regulation of embryonic development and in the determination of the cell fate. The encoded protein may act as a transcriptional activator after forming a protein complex with other proteins. This protein acts as a nucleocytoplasmic shuttle protein and is important for neural crest and peripheral nervous system development. SOX10 is important and sensitive marker of melanoma especially for spindle cell and desmoplastic melanomas and schwannian neoplasms.
The preproprotein encoded by this gene. Somatostatin is expressed throughout the body and inhibits the release of numerous secondary hormones by binding to high-affinity G-protein-coupled somatostatin receptors. This hormone is an important regulator of the endocrine system through its interactions with pituitary growth hormone, thyroid stimulating hormone, and most hormones of the gastrointestinal tract. Somatostatin also affects rates of neurotransmission in the central nervous system and proliferation of both normal and tumorigenic cells.
The preproprotein encoded by this gene. Somatostatin is expressed throughout the body and inhibits the release of numerous secondary hormones by binding to high-affinity G-protein-coupled somatostatin receptors. This hormone is an important regulator of the endocrine system through its interactions with pituitary growth hormone, thyroid stimulating hormone, and most hormones of the gastrointestinal tract. Somatostatin also affects rates of neurotransmission in the central nervous system and proliferation of both normal and tumorigenic cells.
Phosphohistone H3 (Ser10) (PHH3) is a histone protein, which complexes with the other histones to form the major constituents of chromatin in eukaryotic cells. Phosphorylation of serine 10 amino acid residues in histone H3 occurs only during mitosis late G2 phase. PHH3 is a useful marker for mitoses in several types of tumors and it is useful for identifying mitotic figures in tumors accurately.
Phosphohistone H3 (Ser10) (PHH3) is a histone protein, which complexes with the other histones to form the major constituents of chromatin in eukaryotic cells. Phosphorylation of serine 10 amino acid residues in histone H3 occurs only during mitosis late G2 phase. PHH3 is a useful marker for mitoses in several types of tumors and it is useful for identifying mitotic figures in tumors accurately.
Programmed cell death ligand 1 (PDL1, CD274) is a type 1 transmembrane protein with role in the regulation of cellular immune responses. PDL1 and its receptor PD-1, interacts and regulating T lymphocyte activation and immune tolerance. Blockade of PD-L1/PD-1 interaction, it enhances the antitumor activity of T lymphocytes. PDL1 is commonly expressed in many tissues and cells, eg. placenta, tonsil and histiocytes. It over expressed in many human tumors such as non-small cell lung carcinoma (NSCLC), melanoma, DLBCL, and different kind of carcinomas. The staining pattern is membranous.
Programmed cell death ligand 1 (PDL1, CD274) is a type 1 transmembrane protein with role in the regulation of cellular immune responses. PDL1 and its receptor PD-1, interacts and regulating T lymphocyte activation and immune tolerance. Blockade of PD-L1/PD-1 interaction, it enhances the antitumor activity of T lymphocytes. PDL1 is commonly expressed in many tissues and cells, eg. placenta, tonsil and histiocytes. It over expressed in many human tumors such as non-small cell lung carcinoma (NSCLC), melanoma, DLBCL, and different kind of carcinomas. The staining pattern is membranous.
This gene encodes a member of the paired box (PAX) family of transcription factors. The central feature of this gene family is a novel, highly conserved DNA-binding motif, known as the paired box. PAX proteins are important regulators in early development, and alterations in the expression of their genes are thought to contribute to neoplastic transformation. This gene encodes the B-cell lineage specific activator protein that is expressed at early, but not late stages of B-cell differentiation. Its expression has also been detected in developing CNS and testis and so the encoded protein may also play a role in neural development and spermatogenesis. This gene is located at 9p13, which is involved in t(9;14)(p13;q32) translocations recurring in small lymphocytic lymphomas of the plasmacytoid subtype, and in derived large-cell lymphomas. This translocation brings the potent E-mu enhancer of the IgH gene into close proximity of the PAX5 promoter, suggesting that the deregulation of transcription of this gene contributes to the pathogenesis of these lymphomas. Alternatively spliced transcript variants encoding different isoforms have been described but their biological validity has not been determined.
This gene encodes a member of the paired box (PAX) family of transcription factors. The central feature of this gene family is a novel, highly conserved DNA-binding motif, known as the paired box. PAX proteins are important regulators in early development, and alterations in the expression of their genes are thought to contribute to neoplastic transformation. This gene encodes the B-cell lineage specific activator protein that is expressed at early, but not late stages of B-cell differentiation. Its expression has also been detected in developing CNS and testis and so the encoded protein may also play a role in neural development and spermatogenesis. This gene is located at 9p13, which is involved in t(9;14)(p13;q32) translocations recurring in small lymphocytic lymphomas of the plasmacytoid subtype, and in derived large-cell lymphomas. This translocation brings the potent E-mu enhancer of the IgH gene into close proximity of the PAX5 promoter, suggesting that the deregulation of transcription of this gene contributes to the pathogenesis of these lymphomas. Alternatively spliced transcript variants encoding different isoforms have been described but their biological validity has not been determined.
This gene encodes a member of the paired box (PAX) family of transcription factors. The central feature of this gene family is a novel, highly conserved DNA-binding motif, known as the paired box. PAX proteins are important regulators in early development, and alterations in the expression of their genes are thought to contribute to neoplastic transformation. This gene encodes the B-cell lineage specific activator protein that is expressed at early, but not late stages of B-cell differentiation. Its expression has also been detected in developing CNS and testis and so the encoded protein may also play a role in neural development and spermatogenesis. This gene is located at 9p13, which is involved in t(9;14)(p13;q32) translocations recurring in small lymphocytic lymphomas of the plasmacytoid subtype, and in derived large-cell lymphomas. This translocation brings the potent E-mu enhancer of the IgH gene into close proximity of the PAX5 promoter, suggesting that the deregulation of transcription of this gene contributes to the pathogenesis of these lymphomas. Alternatively spliced transcript variants encoding different isoforms have been described but their biological validity has not been determined.
This gene encodes a member of the paired box (PAX) family of transcription factors. The central feature of this gene family is a novel, highly conserved DNA-binding motif, known as the paired box. PAX proteins are important regulators in early development, and alterations in the expression of their genes are thought to contribute to neoplastic transformation. This gene encodes the B-cell lineage specific activator protein that is expressed at early, but not late stages of B-cell differentiation. Its expression has also been detected in developing CNS and testis and so the encoded protein may also play a role in neural development and spermatogenesis. This gene is located at 9p13, which is involved in t(9;14)(p13;q32) translocations recurring in small lymphocytic lymphomas of the plasmacytoid subtype, and in derived large-cell lymphomas. This translocation brings the potent E-mu enhancer of the IgH gene into close proximity of the PAX5 promoter, suggesting that the deregulation of transcription of this gene contributes to the pathogenesis of these lymphomas. Alternatively spliced transcript variants encoding different isoforms have been described but their biological validity has not been determined.
The p63 gene is a homologue of the p53 tumor suppressor gene. Like p53, p63 contains a transactivation (TA) domain induce the transcription of target genes, a DNA binding domain, and an oligomerization domain (OD), used to form tetramers. In contrast to p53, the p63 gene encodes for at least six major isotypes. Three isotypes (TAp63?, TAp63?, and TAp63?) contain the transactivating (TA) domain and are able to transactivate p53 report genes and induce apoptosis. In contrast, the other three isotypes (?Np63?, ?Np63?, ?Np63?) are transcribed from an internal promoter localized within intron3, lack the TA domain, and act as dominant-negatives to suppress transactivation by both p53 and TAp63 isotypes. p63 is highly expressed in the basal cells of the epithelium significant for proper limb outgrowth and morphogenesis.4 In differentiating tissues, p63 is crucial for maintaining the stem cell identity of the basal cells, and is indispensable for correct development of the skin as well as the limb. p63-deficient mice lack all squamous epithelia and their derivatives, including hair, whiskers, teeth, as well as mammary, lacrimal, and salivary glands.Tissue specificity: Widely expressed, notably in heart, kidney, placenta, prostate, skeletal muscle, testis and thymus, although the precise isoform varies according to tissue type. Progenitor cell layers of skin, breast, eye and prostate express high levels of DeltaN-type isoforms. Isoform 10 is predominantly expressed in skin squamous cell carcinomas, but not in normal skin tissues
The p63 gene is a homologue of the p53 tumor suppressor gene. Like p53, p63 contains a transactivation (TA) domain induce the transcription of target genes, a DNA binding domain, and an oligomerization domain (OD), used to form tetramers. In contrast to p53, the p63 gene encodes for at least six major isotypes. Three isotypes (TAp63?, TAp63?, and TAp63?) contain the transactivating (TA) domain and are able to transactivate p53 report genes and induce apoptosis. In contrast, the other three isotypes (?Np63?, ?Np63?, ?Np63?) are transcribed from an internal promoter localized within intron3, lack the TA domain, and act as dominant-negatives to suppress transactivation by both p53 and TAp63 isotypes. p63 is highly expressed in the basal cells of the epithelium significant for proper limb outgrowth and morphogenesis.4 In differentiating tissues, p63 is crucial for maintaining the stem cell identity of the basal cells, and is indispensable for correct development of the skin as well as the limb. p63-deficient mice lack all squamous epithelia and their derivatives, including hair, whiskers, teeth, as well as mammary, lacrimal, and salivary glands.Tissue specificity: Widely expressed, notably in heart, kidney, placenta, prostate, skeletal muscle, testis and thymus, although the precise isoform varies according to tissue type. Progenitor cell layers of skin, breast, eye and prostate express high levels of DeltaN-type isoforms. Isoform 10 is predominantly expressed in skin squamous cell carcinomas, but not in normal skin tissues
Napsin A is an aspartic proteinase that is expressed predominantly in lung (type II pneumocytes) and kidney and lower levels in spleen and blood leukocytes. Alveolar macrophages also contain Napsin A due phagosytosis of pneumocytes. Napsin A in useful especially in the differential diagnosis of lung adenocarcinoma between squamous cell carcinoma.
Napsin A is an aspartic proteinase that is expressed predominantly in lung (type II pneumocytes) and kidney and lower levels in spleen and blood leukocytes. Alveolar macrophages also contain Napsin A due phagosytosis of pneumocytes. Napsin A in useful especially in the differential diagnosis of lung adenocarcinoma between squamous cell carcinoma.
MUM1 is a nuclear transcriptional factor (IRF4 or Multiple Myeloma 1 ) and is expressed in final step of intragerminal center B cell differentiation and in post-germinal center B cells. MUM1 is usually mutually exclusive with BCL6 in nonneoplastic tissue. Nuclear expression is present also in a subpopulation of activated T- lymphocytes and expressed in normal and neoplastic melanocytes. In neoplasms MUM1 is found mainly in B-cell lymphoma and melanocytic lesions. In combination with CD138 and Ig´s makes MUM1 more specific marker for differentiating B-cells before plasma cell stage. MUM1 helps to divide diffuse large B cell lymphomas into germinal center (MUM1-) /non-germinal center (MUM1+) phenotypes and helps also to differentiate double hit from Burkitt and DLCL.
MUM1 is a nuclear transcriptional factor (IRF4 or Multiple Myeloma 1 ) and is expressed in final step of intragerminal center B cell differentiation and in post-germinal center B cells. MUM1 is usually mutually exclusive with BCL6 in nonneoplastic tissue. Nuclear expression is present also in a subpopulation of activated T- lymphocytes and expressed in normal and neoplastic melanocytes. In neoplasms MUM1 is found mainly in B-cell lymphoma and melanocytic lesions. In combination with CD138 and Ig´s makes MUM1 more specific marker for differentiating B-cells before plasma cell stage. MUM1 helps to divide diffuse large B cell lymphomas into germinal center (MUM1-) /non-germinal center (MUM1+) phenotypes and helps also to differentiate double hit from Burkitt and DLCL.
Mismatch repair proteins are nuclear enzymes which participate in repair of mismatch errors during DNA replication. Loss of Mismatch repair proteins increases the number of DNA replication errors in the proliferating cells. Errors occur especially in areas of the genome with short repetitive nucleotide sequences - causing microsatellite instability (MSI). MSH6 is a mismatch repair protein which is not expressed in a high proportion of patients with MSI-H. MSH6 antibody can be useful for immunohistochemical analyses of MSH6 protein in neoplastic tissues and identification of loss of MSH6. Immunohistochemical analysis of MSH6 should be performed in IHC panel together with MLH1, MSH2 and PMS2.
Mismatch repair proteins are nuclear enzymes which participate in repair of mismatch errors during DNA replication. Loss of Mismatch repair proteins increases the number of DNA replication errors in the proliferating cells. Errors occur especially in areas of the genome with short repetitive nucleotide sequences - causing microsatellite instability (MSI). MSH6 is a mismatch repair protein which is not expressed in a high proportion of patients with MSI-H. MSH6 antibody can be useful for immunohistochemical analyses of MSH6 protein in neoplastic tissues and identification of loss of MSH6. Immunohistochemical analysis of MSH6 should be performed in IHC panel together with MLH1, MSH2 and PMS2.
MSH2 (MutS Homologue 2) is one of the five key genes (besides MLH1, PMS1, PMS2, MSH6) of the Mis-Match Repair family (MMR). These genes encode MMR proteins, a group of nuclear enzymes that initiates repair of base-base mismatch, that can occur in DNA replication. MMR nuclear proteins form heterodimers, that bind abnormal DNA and initiates its removal. Loss of MMR proteins lead to accumulation of DNA replication errors in the proliferating cells. The above mentioned MMR genes have clinical interest, as they may mutate in families with hereditary non-polyposis colorectal cancer (HNPCC). About 3-5% of all colorectal carcinomas are related to MMR protein mutation. Carriers of an MLH1 or MSH2 mutation have a more than 70% lifetime risk of developing a colorectal carcinoma, with increased risk of developing endometrial carcinomas (50%). Staining for MLH1, MSH2 and MSH6 in colorectal carcinomas should be carried out in patients < 55 years-of-age or with a family history of these tumors.
MSH2 (MutS Homologue 2) is one of the five key genes (besides MLH1, PMS1, PMS2, MSH6) of the Mis-Match Repair family (MMR). These genes encode MMR proteins, a group of nuclear enzymes that initiates repair of base-base mismatch, that can occur in DNA replication. MMR nuclear proteins form heterodimers, that bind abnormal DNA and initiates its removal. Loss of MMR proteins lead to accumulation of DNA replication errors in the proliferating cells. The above mentioned MMR genes have clinical interest, as they may mutate in families with hereditary non-polyposis colorectal cancer (HNPCC). About 3-5% of all colorectal carcinomas are related to MMR protein mutation. Carriers of an MLH1 or MSH2 mutation have a more than 70% lifetime risk of developing a colorectal carcinoma, with increased risk of developing endometrial carcinomas (50%). Staining for MLH1, MSH2 and MSH6 in colorectal carcinomas should be carried out in patients < 55 years-of-age or with a family history of these tumors.
Wilms' Tumour Protein (WT1) is a transcription factor involved in the development of the urogenital system. Anti-WT1 is utilized in the differential diagnosis of pulmonary malignancies (nuclei staining) and small round cell tumours. Ewing's sarcomas, primitive neuroectodermal tumours, neuroblastomas, rhabdomyosarcomas, and rhabdoid tumours do not stain with Anti-WT1, but cytoplasmic staining may be observed. Although lung adenocarcinomas do not exhibit nuclear staining with Anti-WT1, the antibody may stain the cytoplasm. Anti-WT1 also stains serous ovarian carcinomas, but does not stain mucinous carcinomas of the ovary and pancreatobiliary carcinomas.
DNA-mismatch repair (MMR), a conserved process that involves correcting errors made during DNA synthesis, is crucial to the maintenance of genomic integrity. Lack of a functional DNA-mismatch repair pathway is a common characteristic of several different types of human cancers, either due to an MMR gene mutation or promoter-methylation gene silencing. MLH1 is a human homolog of the E. coli DNA mismatch repair gene mutL, consistent with the characteristic alterations in microsatellite sequences (RER+ phenotype) found in hereditary nonpolyposis colon cancer (HNPCC). MLH1 is an integral part of the protein complex responsible for mismatch repair expressed in lymphocytes, heart, colon, breast, lung, spleen, testis, prostate, thyroid and gall bladder, and is methylated in several ovarian tumors. Loss of MLH1 protein expression is associated with a mutated phenotype, microsatellite instability and a predisposition to cancer. In hereditary nonpolyposis colorectal cancer (HNPCC), an autosomal dominant inherited cancer syndrome that signifies a high risk of colorectal and various other types of cancer, the MLH1 gene exhibits a pathogenic mutation. Inactivation of the MLH1 gene causes genome instability and predisposition to cancer. MLH1 also plays a role in meiotic recombination.
DNA-mismatch repair (MMR), a conserved process that involves correcting errors made during DNA synthesis, is crucial to the maintenance of genomic integrity. Lack of a functional DNA-mismatch repair pathway is a common characteristic of several different types of human cancers, either due to an MMR gene mutation or promoter-methylation gene silencing. MLH1 is a human homolog of the E. coli DNA mismatch repair gene mutL, consistent with the characteristic alterations in microsatellite sequences (RER+ phenotype) found in hereditary nonpolyposis colon cancer (HNPCC). MLH1 is an integral part of the protein complex responsible for mismatch repair expressed in lymphocytes, heart, colon, breast, lung, spleen, testis, prostate, thyroid and gall bladder, and is methylated in several ovarian tumors. Loss of MLH1 protein expression is associated with a mutated phenotype, microsatellite instability and a predisposition to cancer. In hereditary nonpolyposis colorectal cancer (HNPCC), an autosomal dominant inherited cancer syndrome that signifies a high risk of colorectal and various other types of cancer, the MLH1 gene exhibits a pathogenic mutation. Inactivation of the MLH1 gene causes genome instability and predisposition to cancer. MLH1 also plays a role in meiotic recombination.
Melan-A (MART-1) is a transmembrane protein which is recognized by autologous cytotoxic T lymphocytes. Melan a is expressed in skin melanocytes and melanocyte lineages. This antibody is useful for the identification of melanomas and it should be included into standard melanoma panel for diagnostic. This antibody not cross react with cells of adrenal cortex.
Melan-A (MART-1) is a transmembrane protein which is recognized by autologous cytotoxic T lymphocytes. Melan a is expressed in skin melanocytes and melanocyte lineages. This antibody is useful for the identification of melanomas and it should be included into standard melanoma panel for diagnostic. This antibody not cross react with cells of adrenal cortex.
The protein encoded by this gene is one of the highly conserved mini-chromosome maintenance proteins (MCM) that are involved in the initiation of eukaryotic genome replication. The hexameric protein complex formed by MCM proteins is a key component of the pre-replication complex (pre_RC) and may be involved in the formation of replication forks and in the recruitment of other DNA replication related proteins. This protein forms a complex with MCM4, 6, and 7, and has been shown to regulate the helicase activity of the complex. This protein is phosphorylated, and thus regulated by, protein kinases CDC2 and CDC7.
The protein encoded by this gene is one of the highly conserved mini-chromosome maintenance proteins (MCM) that are involved in the initiation of eukaryotic genome replication. The hexameric protein complex formed by MCM proteins is a key component of the pre-replication complex (pre_RC) and may be involved in the formation of replication forks and in the recruitment of other DNA replication related proteins. This protein forms a complex with MCM4, 6, and 7, and has been shown to regulate the helicase activity of the complex. This protein is phosphorylated, and thus regulated by, protein kinases CDC2 and CDC7.
The protein encoded by the classic MBP gene is a major constituent of the myelin sheath of oligodendrocytes and Schwann cells in the nervous system. However, MBP-related transcripts are also present in the bone marrow and the immune system. These mRNAs arise from the long MBP gene (otherwise called "Golli-MBP") that contains 3 additional exons located upstream of the classic MBP exons. Alternative splicing from the Golli and the MBP transcription start sites gives rise to 2 sets of MBP-related transcripts and gene products. The Golli mRNAs contain 3 exons unique to Golli-MBP, spliced in-frame to 1 or more MBP exons. They encode hybrid proteins that have N-terminal Golli aa sequence linked to MBP aa sequence. The second family of transcripts contain only MBP exons and produce the well characterized myelin basic proteins. This complex gene structure is conserved among species suggesting that the MBP transcription unit is an integral part of the Golli transcription unit and that this arrangement is important for the function and/or regulation of these genes.
The protein encoded by the classic MBP gene is a major constituent of the myelin sheath of oligodendrocytes and Schwann cells in the nervous system. However, MBP-related transcripts are also present in the bone marrow and the immune system. These mRNAs arise from the long MBP gene (otherwise called "Golli-MBP") that contains 3 additional exons located upstream of the classic MBP exons. Alternative splicing from the Golli and the MBP transcription start sites gives rise to 2 sets of MBP-related transcripts and gene products. The Golli mRNAs contain 3 exons unique to Golli-MBP, spliced in-frame to 1 or more MBP exons. They encode hybrid proteins that have N-terminal Golli aa sequence linked to MBP aa sequence. The second family of transcripts contain only MBP exons and produce the well characterized myelin basic proteins. This complex gene structure is conserved among species suggesting that the MBP transcription unit is an integral part of the Golli transcription unit and that this arrangement is important for the function and/or regulation of these genes.
Mammaglobin is a gene that is expressed almost exclusively in the normal breast epithelium and human breast cancer. It is a member of the secretoglobin gene family and forms a heterodimer with lipophilin B. It has been suggested that mammaglobin may be a useful marker for breast cancer clinical research. Studies investigating the detection of mRNA by RT PCR from circulating carcinoma cells in the peripheral blood of breast cancer patients have shown that mammaglobin is a highly specific marker and correlates with several prognostic factors. Mammaglobin is mammary gland specific and it over expressed in breast cancer.
Mammaglobin is a gene that is expressed almost exclusively in the normal breast epithelium and human breast cancer. It is a member of the secretoglobin gene family and forms a heterodimer with lipophilin B. It has been suggested that mammaglobin may be a useful marker for breast cancer clinical research. Studies investigating the detection of mRNA by RT PCR from circulating carcinoma cells in the peripheral blood of breast cancer patients have shown that mammaglobin is a highly specific marker and correlates with several prognostic factors. Mammaglobin is mammary gland specific and it over expressed in breast cancer.
LI-Cadherin (Cadherin-17, CDH17), is liver-intestinal cadherin and it belongs to the cadherin superfamily. Structure and cellular locations of LI-Cadherin differs from other cadherins like E-CAD, N-CAD or P-CAD. LI-Cadherin is expressed in epithelium of appendix, colon, and intestine and it is not expressed in other normal tissues. LI-Cadherin is positive in carcinomas of colorectal carcinomas and some cases of gastric and pancreas adenocarcinoma.
LI-Cadherin (Cadherin-17, CDH17), is liver-intestinal cadherin and it belongs to the cadherin superfamily. Structure and cellular locations of LI-Cadherin differs from other cadherins like E-CAD, N-CAD or P-CAD. LI-Cadherin is expressed in epithelium of appendix, colon, and intestine and it is not expressed in other normal tissues. LI-Cadherin is positive in carcinomas of colorectal carcinomas and some cases of gastric and pancreas adenocarcinoma.
Cell adhesion molecule with an important role in the development of the nervous system. The L1, neural cell adhesion molecule (L1CAM) plays an important role in axon growth, fasciculation, neural migration and in mediating neuronal differentiation. L1 protein is expressed to tissues arising from neuroectoderm. L1CAM plays also an important role in the malignancy of human tumors and according to several studies, L1CAM positive carcinomas have a bad prognosis. L1CAM is overexpressed in many human carcinomas but it is useful especially in endometrium carcinoma diagnostic.
Cell adhesion molecule with an important role in the development of the nervous system. The L1, neural cell adhesion molecule (L1CAM) plays an important role in axon growth, fasciculation, neural migration and in mediating neuronal differentiation. L1 protein is expressed to tissues arising from neuroectoderm. L1CAM plays also an important role in the malignancy of human tumors and according to several studies, L1CAM positive carcinomas have a bad prognosis. L1CAM is overexpressed in many human carcinomas but it is useful especially in endometrium carcinoma diagnostic.
Ki67, also known as MKI67, is aprototypic cell cycle related nuclear protein, expressed by proliferating cells in all phases of the active cell cycle (G1, S, G2 and M phase). It is absent in resting (G0) cells. Ki67 antibodies are useful in establishing the cell growing fraction in neoplasms (immunohistochemically quantified by determining the number of Ki67 positive cells among the total number of resting cells = Ki67 index). In neoplastic tissues the prognostic value is comparable to the tritiated thymidine labelling index. The correlation between low Ki67 index and histologically low grade tumours is strong. Ki67 is routinely used as a neuronal marker of cell cycling and proliferation
Ki67, also known as MKI67, is aprototypic cell cycle related nuclear protein, expressed by proliferating cells in all phases of the active cell cycle (G1, S, G2 and M phase). It is absent in resting (G0) cells. Ki67 antibodies are useful in establishing the cell growing fraction in neoplasms (immunohistochemically quantified by determining the number of Ki67 positive cells among the total number of resting cells = Ki67 index). In neoplastic tissues the prognostic value is comparable to the tritiated thymidine labelling index. The correlation between low Ki67 index and histologically low grade tumours is strong. Ki67 is routinely used as a neuronal marker of cell cycling and proliferation
Insulin is a pancreatic hormone that regulates glucose level in blood and it is involved in the synthesis of proteins and fat. Insulin increases cell permeability to monosaccharides, amino acids, and fatty acids. It accelerates glycolysis, the pentose phosphate cycle, and glycogen synthesis in liver. Insulin is a heterodimer of a B chain and A chain linked by two disulfide bonds. Defects in insulin are the cause of familial hyperproinsulinemia. Insulin is present on the insulin secreted beta cells in islets of Langerhans.
Insulin is a pancreatic hormone that regulates glucose level in blood and it is involved in the synthesis of proteins and fat. Insulin increases cell permeability to monosaccharides, amino acids, and fatty acids. It accelerates glycolysis, the pentose phosphate cycle, and glycogen synthesis in liver. Insulin is a heterodimer of a B chain and A chain linked by two disulfide bonds. Defects in insulin are the cause of familial hyperproinsulinemia. Insulin is present on the insulin secreted beta cells in islets of Langerhans.
AIB-1 also known as allograft inflammation factor-1 is cytoplasmic actin and calcium binding protein that is expressed especially in activated macrophages and microglia, but also plays part in vascular smooth muscle cell activation and migration. In clinical use IBA-1 can be valuable marker of allograft rejection, macrophages and microglia.
AIB-1 also known as allograft inflammation factor-1 is cytoplasmic actin and calcium binding protein that is expressed especially in activated macrophages and microglia, but also plays part in vascular smooth muscle cell activation and migration. In clinical use IBA-1 can be valuable marker of allograft rejection, macrophages and microglia.
ERBB2: v-erb-b2 erythroblastic leukemia viral oncogene homolog 2, neuro/glioblastoma derived oncogene homolog (avian). This gene encodes a member of the epidermal growth factor (EGF) receptor family of receptor tyrosine kinases. This protein has no ligand binding domain of its own and therefore cannot bind growth factors. However, it does bind tightly to other ligand-bound EGF receptor family members to form a heterodimer, stabilizing ligand binding and enhancing kinase-mediated activation of downstream signalling pathways, such as those involving mitogen-activated protein kinase and phosphatidylinositol-3 kinase. Allelic variations at amino acid positions 654 and 655 of isoform a (positions 624 and 625 of isoform b) have been reported, with the most common allele, Ile654/Ile655, shown here. Amplification and/or overexpression of this gene has been reported in numerous cancers, including breast and ovarian tumors. Alternative splicing results in several additional transcript variants, some encoding different isoforms and others that have not been fully characterized
ERBB2: v-erb-b2 erythroblastic leukemia viral oncogene homolog 2, neuro/glioblastoma derived oncogene homolog (avian). This gene encodes a member of the epidermal growth factor (EGF) receptor family of receptor tyrosine kinases. This protein has no ligand binding domain of its own and therefore cannot bind growth factors. However, it does bind tightly to other ligand-bound EGF receptor family members to form a heterodimer, stabilizing ligand binding and enhancing kinase-mediated activation of downstream signalling pathways, such as those involving mitogen-activated protein kinase and phosphatidylinositol-3 kinase. Allelic variations at amino acid positions 654 and 655 of isoform a (positions 624 and 625 of isoform b) have been reported, with the most common allele, Ile654/Ile655, shown here. Amplification and/or overexpression of this gene has been reported in numerous cancers, including breast and ovarian tumors. Alternative splicing results in several additional transcript variants, some encoding different isoforms and others that have not been fully characterized
ERBB2: v-erb-b2 erythroblastic leukemia viral oncogene homolog 2, neuro/glioblastoma derived oncogene homolog (avian). This gene encodes a member of the epidermal growth factor (EGF) receptor family of receptor tyrosine kinases. This protein has no ligand binding domain of its own and therefore cannot bind growth factors. However, it does bind tightly to other ligand-bound EGF receptor family members to form a heterodimer, stabilizing ligand binding and enhancing kinase-mediated activation of downstream signalling pathways, such as those involving mitogen-activated protein kinase and phosphatidylinositol-3 kinase. Allelic variations at amino acid positions 654 and 655 of isoform a (positions 624 and 625 of isoform b) have been reported, with the most common allele, Ile654/Ile655, shown here. Amplification and/or overexpression of this gene has been reported in numerous cancers, including breast and ovarian tumors. Alternative splicing results in several additional transcript variants, some encoding different isoforms and others that have not been fully characterized
ERBB2: v-erb-b2 erythroblastic leukemia viral oncogene homolog 2, neuro/glioblastoma derived oncogene homolog (avian). This gene encodes a member of the epidermal growth factor (EGF) receptor family of receptor tyrosine kinases. This protein has no ligand binding domain of its own and therefore cannot bind growth factors. However, it does bind tightly to other ligand-bound EGF receptor family members to form a heterodimer, stabilizing ligand binding and enhancing kinase-mediated activation of downstream signalling pathways, such as those involving mitogen-activated protein kinase and phosphatidylinositol-3 kinase. Allelic variations at amino acid positions 654 and 655 of isoform a (positions 624 and 625 of isoform b) have been reported, with the most common allele, Ile654/Ile655, shown here. Amplification and/or overexpression of this gene has been reported in numerous cancers, including breast and ovarian tumors. Alternative splicing results in several additional transcript variants, some encoding different isoforms and others that have not been fully characterized
Granzyme B (GZMB), is the cell death-inducing serine protease, which expressed in the cytotoxic T lymphocytes and natural killer (NK) cells. Granzyme B is crucial for the rapid induction of target cell apoptosis and it has essential role in immunosurveillance. Granzyme B enters in the target cells with perforin, and results in the activation of apoptosis through caspase-dependent and -independent pathways. Granzyme B is the useful marker especially in NK/T-cell lymphomas.
Granzyme B (GZMB), is the cell death-inducing serine protease, which expressed in the cytotoxic T lymphocytes and natural killer (NK) cells. Granzyme B is crucial for the rapid induction of target cell apoptosis and it has essential role in immunosurveillance. Granzyme B enters in the target cells with perforin, and results in the activation of apoptosis through caspase-dependent and -independent pathways. Granzyme B is the useful marker especially in NK/T-cell lymphomas.
Glutamine synthetase is enzyme which catalyzes the synthesis of glutamine from glutamate and ammonia in the liver tissue. In normal liver glutamine sythetase expressed in pericentral hepatocytes. Glutamine synthetase can be useful marker in hepatocellular carcinoma diagnostic with panel of other hepatocellular carcinoma markers.
Glutamine synthetase is enzyme which catalyzes the synthesis of glutamine from glutamate and ammonia in the liver tissue. In normal liver glutamine sythetase expressed in pericentral hepatocytes. Glutamine synthetase can be useful marker in hepatocellular carcinoma diagnostic with panel of other hepatocellular carcinoma markers.
Wilms' Tumour Protein (WT1) is a transcription factor involved in the development of the urogenital system. Anti-WT1 is utilized in the differential diagnosis of pulmonary malignancies (nuclei staining) and small round cell tumours. Ewing's sarcomas, primitive neuroectodermal tumours, neuroblastomas, rhabdomyosarcomas, and rhabdoid tumours do not stain with Anti-WT1, but cytoplasmic staining may be observed. Although lung adenocarcinomas do not exhibit nuclear staining with Anti-WT1, the antibody may stain the cytoplasm. Anti-WT1 also stains serous ovarian carcinomas, but does not stain mucinous carcinomas of the ovary and pancreatobiliary carcinomas.
The protein encoded by this gene is actually a preproprotein that is cleaved into four distinct mature peptides. One of these, glucagon, is a pancreatic hormone that counteracts the glucose-lowering action of insulin by stimulating glycogenolysis and gluconeogenesis. Glucagon is a ligand for a specific G-protein linked receptor whose signalling pathway controls cell proliferation. Two of the other peptides are secreted from gut endocrine cells and promote nutrient absorption through distinct mechanisms. Finally, the fourth peptide is similar to glicentin, an active enteroglucagon.Tissue specificity: Glucagon is secreted in the A cells of the islets of Langerhans. GLP-1, GLP-2, oxyntomodulin and glicentin are secreted from enteroendocrine cells throughout the gastrointestinal tract. GLP1 and GLP2 are also secreted in selected neurons in the brain.
The protein encoded by this gene is actually a preproprotein that is cleaved into four distinct mature peptides. One of these, glucagon, is a pancreatic hormone that counteracts the glucose-lowering action of insulin by stimulating glycogenolysis and gluconeogenesis. Glucagon is a ligand for a specific G-protein linked receptor whose signalling pathway controls cell proliferation. Two of the other peptides are secreted from gut endocrine cells and promote nutrient absorption through distinct mechanisms. Finally, the fourth peptide is similar to glicentin, an active enteroglucagon.Tissue specificity: Glucagon is secreted in the A cells of the islets of Langerhans. GLP-1, GLP-2, oxyntomodulin and glicentin are secreted from enteroendocrine cells throughout the gastrointestinal tract. GLP1 and GLP2 are also secreted in selected neurons in the brain.
Glial Fibrillary Acidic Protein (GFAP) is the intermediate filament protein which is highly specific to astrocytes in the central nervous system (CNS). GFAP is also expressed some cells in peripheral nervous system eg. in Schwann cells and satellite cells. GFAP is useful especially for differential diagnosis of astrocytoma from non-glial neoplasm. Schwannoma and neurofibroma frequently express GFAP.
Glial Fibrillary Acidic Protein (GFAP) is the intermediate filament protein which is highly specific to astrocytes in the central nervous system (CNS). GFAP is also expressed some cells in peripheral nervous system eg. in Schwann cells and satellite cells. GFAP is useful especially for differential diagnosis of astrocytoma from non-glial neoplasm. Schwannoma and neurofibroma frequently express GFAP.
This gene encodes a carcinoma-associated antigen and is a member of a family that includes at least two type I membrane proteins. This antigen is expressed on most normal epithelial cells and gastrointestinal carcinomas and functions as a homotypic calcium-independent cell adhesion molecule. The antigen is being used as a target for immunotherapy treatment of human carcinomas. Mutations in this gene result in congenital tufting enteropathy.Tissue specificity: This protein is expressed in almost all epithelial cell membranes but not on mesodermal or neural cell membranes. Found on the surface of adenocarcinomas. EPCAM:Epithelial Cell Adhesion Molecule (EpCAM) is a 40 kDa cell surface antigen. This antigen has been identified independently by a number of groups, and has been known by a variety of names. Several monoclonal antibodies have been raised against EpCAM, many of which have been described as tumour specific molecules on carcinomas. EpCAM is a Type 1 transmembrane glycoprotein. It is expressed on the basolateral membrane of cells by the majority of epithelial tissues, with the exception of adult squamous epithelium and some specific epithelial cell types including hepatocytes and gastric epithelial cells. EpCAM expression has been reported to be a possible marker of early malignancy, with expression being increased in tumour cells, and de novo expression being seen in dysplastic squamous epithelium. This cell surface, glycosylated 40kD protein is highly expressed in the bone marrow, colon, lung, and most normal epithelial cells and is expressed on carcinomas of gastrointestinal origin.
This gene encodes a carcinoma-associated antigen and is a member of a family that includes at least two type I membrane proteins. This antigen is expressed on most normal epithelial cells and gastrointestinal carcinomas and functions as a homotypic calcium-independent cell adhesion molecule. The antigen is being used as a target for immunotherapy treatment of human carcinomas. Mutations in this gene result in congenital tufting enteropathy.Tissue specificity: This protein is expressed in almost all epithelial cell membranes but not on mesodermal or neural cell membranes. Found on the surface of adenocarcinomas. EPCAM:Epithelial Cell Adhesion Molecule (EpCAM) is a 40 kDa cell surface antigen. This antigen has been identified independently by a number of groups, and has been known by a variety of names. Several monoclonal antibodies have been raised against EpCAM, many of which have been described as tumour specific molecules on carcinomas. EpCAM is a Type 1 transmembrane glycoprotein. It is expressed on the basolateral membrane of cells by the majority of epithelial tissues, with the exception of adult squamous epithelium and some specific epithelial cell types including hepatocytes and gastric epithelial cells. EpCAM expression has been reported to be a possible marker of early malignancy, with expression being increased in tumour cells, and de novo expression being seen in dysplastic squamous epithelium. This cell surface, glycosylated 40kD protein is highly expressed in the bone marrow, colon, lung, and most normal epithelial cells and is expressed on carcinomas of gastrointestinal origin.
This gene encodes a homodimeric transmembrane protein which is a major glycoprotein of the vascular endothelium. This protein is a component of the transforming growth factor beta receptor complex and it binds TGFB1 and TGFB3 with high affinity. Mutations in this gene cause hereditary hemorrhagic telangiectasia, also known as Osler-Rendu-Weber syndrome 1, an autosomal dominant multisystemic vascular dysplasia.
This gene encodes a homodimeric transmembrane protein which is a major glycoprotein of the vascular endothelium. This protein is a component of the transforming growth factor beta receptor complex and it binds TGFB1 and TGFB3 with high affinity. Mutations in this gene cause hereditary hemorrhagic telangiectasia, also known as Osler-Rendu-Weber syndrome 1, an autosomal dominant multisystemic vascular dysplasia.
E-Cadherin is a 120 kDa transmembrane glycoprotein that is localized in the adherens junctions of epithelial cells. There, it interacts with the cytoskeleton through the associated cytoplasmic catenin proteins. In addition to being a calcium-dependent adhesion molecule, E-Cadherin is also a critical regulator of epithelial junction formation. Its association with catenins is necessary for cell-cell adhesion. These E-cadherin/catenin complexes associate with corical actin bundles at both the zonula adherens and the lateral adhesion plaques. Tyrosine phosphorylation can disrupt these complexes, leading to changes in cell adhesion properties. E-Cadherin expression is often down-regulated in highly invasive, poorly differentiated carcinomas. Increased expression of E-Cadherin in these cells reduces invasiveness. Thus, loss of expression or function of E-Cadherin appears to be an important step in tumorigenic progression.Tissue specificity: Non-neural epithelial tissues.
E-Cadherin is a 120 kDa transmembrane glycoprotein that is localized in the adherens junctions of epithelial cells. There, it interacts with the cytoskeleton through the associated cytoplasmic catenin proteins. In addition to being a calcium-dependent adhesion molecule, E-Cadherin is also a critical regulator of epithelial junction formation. Its association with catenins is necessary for cell-cell adhesion. These E-cadherin/catenin complexes associate with corical actin bundles at both the zonula adherens and the lateral adhesion plaques. Tyrosine phosphorylation can disrupt these complexes, leading to changes in cell adhesion properties. E-Cadherin expression is often down-regulated in highly invasive, poorly differentiated carcinomas. Increased expression of E-Cadherin in these cells reduces invasiveness. Thus, loss of expression or function of E-Cadherin appears to be an important step in tumorigenic progression.Tissue specificity: Non-neural epithelial tissues.
Desmin (DES), with 470-amino acid protein (about 52kDa), belongs to the intermediate filament family and Desmin is class III intermediate filaments found in muscle cells. Homopolymers of Desmin form a stable intracytoplasmic filamentous network connecting myofibrils to each other and to the plasma membrane.Mutations in Desmin are associated with desmin-related myopathy, a familial cardiac and skeletal myopathy (CSM), and with distal myopathies.Desmin is also expressed in smooth muscle cells of both airways and alveolar ducts and Desmin is a load-bearing protein that stiffens the airways and consequently the lung and modulates airway contractile response.
Desmin (DES), with 470-amino acid protein (about 52kDa), belongs to the intermediate filament family and Desmin is class III intermediate filaments found in muscle cells. Homopolymers of Desmin form a stable intracytoplasmic filamentous network connecting myofibrils to each other and to the plasma membrane.Mutations in Desmin are associated with desmin-related myopathy, a familial cardiac and skeletal myopathy (CSM), and with distal myopathies.Desmin is also expressed in smooth muscle cells of both airways and alveolar ducts and Desmin is a load-bearing protein that stiffens the airways and consequently the lung and modulates airway contractile response.
Biochemically, most members of the CK family fall into one of two classes, type I (acidic polypeptides) and type II (basic polypeptides). The type II cytokeratins consist of basic or neutral proteins which are arranged in pairs of heterotypic keratin chains coexpressed during differentiation of simple and stratified epithelial tissues. Cytokeratins comprise a diverse group of intermediate filament proteins (IFPs) that are expressed as pairs in both keratinized and non-keratinized epithelial tissue. Cytokeratins play a critical role in differentiation and tissue specialization and function to maintain the overall structural integrity of epithelial cells. Cytokeratins have been found to be useful markers of tissue differentiation which is directly applicable to the characterization of malignant tumors.
Biochemically, most members of the CK family fall into one of two classes, type I (acidic polypeptides) and type II (basic polypeptides). The type II cytokeratins consist of basic or neutral proteins which are arranged in pairs of heterotypic keratin chains coexpressed during differentiation of simple and stratified epithelial tissues. Cytokeratins comprise a diverse group of intermediate filament proteins (IFPs) that are expressed as pairs in both keratinized and non-keratinized epithelial tissue. Cytokeratins play a critical role in differentiation and tissue specialization and function to maintain the overall structural integrity of epithelial cells. Cytokeratins have been found to be useful markers of tissue differentiation which is directly applicable to the characterization of malignant tumors.
Cytokeratin 8, also known as CK8, is a member of the low molecular weight type II keratin family. Type I and type II keratins heteropolymerize to form intermediate-sized filaments in the cytoplasm of epithelial cells. CK8 typically dimerizes with CK18 to form an intermediate filament in simple single-layered epithelial cells. It is useful for especially diagnostic of most non-squamous epithelial tumors. squamous tumors are negative for this antibody as a rule.
Cytokeratin 8, also known as CK8, is a member of the low molecular weight type II keratin family. Type I and type II keratins heteropolymerize to form intermediate-sized filaments in the cytoplasm of epithelial cells. CK8 typically dimerizes with CK18 to form an intermediate filament in simple single-layered epithelial cells. It is useful for especially diagnostic of most non-squamous epithelial tumors. squamous tumors are negative for this antibody as a rule.
Cytokeratin 7 (CK7) is a protein that in humans is encoded by the KRT7 gene. CK7 is a member of the keratin family and it is specifically expressed in the simple epithelia lining the cavities of the internal organs and in the gland ducts. The type II cytokeratins consist of basic or neutral proteins which are arranged in pairs of heterotypic keratin chains co-expressed during differentiation of simple and stratified epithelial tissues. IHC staining of cytokeratin 7 is useful for carcinoma diagnostic especially for differential diagnosis of urothelial, lung, breast carcinomas to colorectal or prostate carcinomas. CK7 is especially marker of lung adenocarcinoma. Pancreas is the good tissue control for CK7.
Cytokeratin 7 (CK7) is a protein that in humans is encoded by the KRT7 gene. CK7 is a member of the keratin family and it is specifically expressed in the simple epithelia lining the cavities of the internal organs and in the gland ducts. The type II cytokeratins consist of basic or neutral proteins which are arranged in pairs of heterotypic keratin chains co-expressed during differentiation of simple and stratified epithelial tissues. IHC staining of cytokeratin 7 is useful for carcinoma diagnostic especially for differential diagnosis of urothelial, lung, breast carcinomas to colorectal or prostate carcinomas. CK7 is especially marker of lung adenocarcinoma. Pancreas is the good tissue control for CK7.
CK5 (keratin 5) is a member of the keratin gene family. Biochemically, most members of the CK family fall into one of two classes, type I (acidic polypeptides) and type II (basic polypeptides). The type II cytokeratins consist of basic or neutral proteins which are arranged in pairs of heterotypic keratin chains coexpressed during differentiation of simple and stratified epithelial tissues. This type II cytokeratin is specifically expressed in the basal layer of the epidermis with family member KRT14. The type II cytokeratins are clustered in a region of chromosome 12q12-q13. At least one member of the acidic family and one member of the basic family is expressed in all epithelial cells. Cytokeratin 5 is expressed in normal basal cells. Mutations of the Cytokeratin5 gene (KRT5) have been shown to result in the autosomal dominant disorderepidermolysis bullosa (EB). Defects in KRT5 are a cause of epidermolysis bullosa simplex.
CK5 (keratin 5) is a member of the keratin gene family. Biochemically, most members of the CK family fall into one of two classes, type I (acidic polypeptides) and type II (basic polypeptides). The type II cytokeratins consist of basic or neutral proteins which are arranged in pairs of heterotypic keratin chains coexpressed during differentiation of simple and stratified epithelial tissues. This type II cytokeratin is specifically expressed in the basal layer of the epidermis with family member KRT14. The type II cytokeratins are clustered in a region of chromosome 12q12-q13. At least one member of the acidic family and one member of the basic family is expressed in all epithelial cells. Cytokeratin 5 is expressed in normal basal cells. Mutations of the Cytokeratin5 gene (KRT5) have been shown to result in the autosomal dominant disorderepidermolysis bullosa (EB). Defects in KRT5 are a cause of epidermolysis bullosa simplex.
Cytokeratin 20 (CK20) is expressed in enterocytes and goblet cells of the gastrointestinal (GI) tract. It is also expressed in specific types of simple epithelial cells of the urinary tract. CK20 is useful marker of colorectal carcinoma, gastric, pancreas, urothelium, merkel and biliary system carcinomas.
Cytokeratin 20 (CK20) is expressed in enterocytes and goblet cells of the gastrointestinal (GI) tract. It is also expressed in specific types of simple epithelial cells of the urinary tract. CK20 is useful marker of colorectal carcinoma, gastric, pancreas, urothelium, merkel and biliary system carcinomas.
Cytokeratin 20 (CK20) is expressed in enterocytes and goblet cells of the gastrointestinal (GI) tract. It is also expressed in specific types of simple epithelial cells of the urinary tract. CK20 is useful marker of colorectal carcinoma, gastric, pancreas, urothelium, merkel and biliary system carcinomas.
Cytokeratin 20 (CK20) is expressed in enterocytes and goblet cells of the gastrointestinal (GI) tract. It is also expressed in specific types of simple epithelial cells of the urinary tract. CK20 is useful marker of colorectal carcinoma, gastric, pancreas, urothelium, merkel and biliary system carcinomas.
Cytokeratin 19, also known as KRT19, CK19, CK19, K1CS, MGC15366. Entrez Protein NP_002267. It is a member of the keratin family. The keratins are intermediate filament proteins responsible for the structural integrity of epithelial cells and are subdivided into cytokeratins and hair keratins. The type I cytokeratins consist of acidic proteins which are arranged in pairs of heterotypic keratin chains. Unlike its related family members, this smallest known acidic cytokeratin is not paired with a basic cytokeratin in epithelial cells. It is specifically expressed in the periderm, the transiently superficial layer that envelopes the developing epidermis.
Cytokeratin 19, also known as KRT19, CK19, CK19, K1CS, MGC15366. Entrez Protein NP_002267. It is a member of the keratin family. The keratins are intermediate filament proteins responsible for the structural integrity of epithelial cells and are subdivided into cytokeratins and hair keratins. The type I cytokeratins consist of acidic proteins which are arranged in pairs of heterotypic keratin chains. Unlike its related family members, this smallest known acidic cytokeratin is not paired with a basic cytokeratin in epithelial cells. It is specifically expressed in the periderm, the transiently superficial layer that envelopes the developing epidermis.
Wilms' Tumour Protein (WT1) is a transcription factor involved in the development of the urogenital system. Anti-WT1 is utilized in the differential diagnosis of pulmonary malignancies (nuclei staining) and small round cell tumours. Ewing's sarcomas, primitive neuroectodermal tumours, neuroblastomas, rhabdomyosarcomas, and rhabdoid tumours do not stain with Anti-WT1, but cytoplasmic staining may be observed. Although lung adenocarcinomas do not exhibit nuclear staining with Anti-WT1, the antibody may stain the cytoplasm. Anti-WT1 also stains serous ovarian carcinomas, but does not stain mucinous carcinomas of the ovary and pancreatobiliary carcinomas.
Cytokeratin 18, also known as CK18, CYK18, KRT18. Entrez Protein NP_000215. It encodes the type I intermediate filament chain keratin 18. Keratin 18, together with its filament partner keratin 8, are perhaps the most commonly found members of the intermediate filament gene family. They are expressed in single layer epithelial tissues of the body. Mutations in this gene have been linked to cryptogenic cirrhosis. Two transcript variants encoding the same protein have been found for this gene.
Cytokeratin 18, also known as CK18, CYK18, KRT18. Entrez Protein NP_000215. It encodes the type I intermediate filament chain keratin 18. Keratin 18, together with its filament partner keratin 8, are perhaps the most commonly found members of the intermediate filament gene family. They are expressed in single layer epithelial tissues of the body. Mutations in this gene have been linked to cryptogenic cirrhosis. Two transcript variants encoding the same protein have been found for this gene.
CK17, also known as KRT17, it is the type I intermediate filament chain keratin 17. It is found in nail beds, hair follicles, sebaceous glands, and other epidermal appendages. Mutations in this gene lead to Jackson-Lawler type pachyonychia congenita and steatocystoma multiplex. May play a role in the formation and maintenance of various skin appendages, specifically in determining shape and orientation of hair. May be a marker of basal cell differentiation in complex epithelia and therefore indicative of a certain type of epithelial "stem cells". May act as an autoantigen in the immunopathogenesis of psoriasis, with certain peptide regions being a major target for autoreactive T-cells and hence causing their proliferation. Required for the correct growth of hair follicles, in particular for the persistence of the anagen (growth) state. Modulates the function of TNF-alpha in the specific context of hair cycling. Regulates protein synthesis and epithelial cell growth through binding to the adapter protein SFN and by stimulating Akt/mTOR pathway. Involved in tissue repair.
CK17, also known as KRT17, it is the type I intermediate filament chain keratin 17. It is found in nail beds, hair follicles, sebaceous glands, and other epidermal appendages. Mutations in this gene lead to Jackson-Lawler type pachyonychia congenita and steatocystoma multiplex. May play a role in the formation and maintenance of various skin appendages, specifically in determining shape and orientation of hair. May be a marker of basal cell differentiation in complex epithelia and therefore indicative of a certain type of epithelial "stem cells". May act as an autoantigen in the immunopathogenesis of psoriasis, with certain peptide regions being a major target for autoreactive T-cells and hence causing their proliferation. Required for the correct growth of hair follicles, in particular for the persistence of the anagen (growth) state. Modulates the function of TNF-alpha in the specific context of hair cycling. Regulates protein synthesis and epithelial cell growth through binding to the adapter protein SFN and by stimulating Akt/mTOR pathway. Involved in tissue repair.
Cytokeratin 14 (CK14) is an acidic type I human intermediate filament protein. It mostly found in basal cells of squamous epithelia, myoepithelium, some glandular epithelia and mesothelial cells. Molecular weight of CK14 is 50 kDa, and it usually pairs with CK5, which is a type II (basic) cytokeratin. In neoplastic cells, CK14 is a useful marker especially in identification of basal cell epithelium in prostate and myoepithelium in breast. It also useful for detecting squamous cell carcinomas. CK5 and CK14 antibodies can be used as a cocktail as well.
Cytokeratin 14 (CK14) is an acidic type I human intermediate filament protein. It mostly found in basal cells of squamous epithelia, myoepithelium, some glandular epithelia and mesothelial cells. Molecular weight of CK14 is 50 kDa, and it usually pairs with CK5, which is a type II (basic) cytokeratin. In neoplastic cells, CK14 is a useful marker especially in identification of basal cell epithelium in prostate and myoepithelium in breast. It also useful for detecting squamous cell carcinomas. CK5 and CK14 antibodies can be used as a cocktail as well.
Cyclin D1, is cell cycle regulator and it is over expressed in a wide variety of human neoplasms. Cyclin D1 forms a complex with regulatory subunit of CDK4 or CDK6 kinases and it is required for cell cycle G1/S transition. The expression is maximal in G1 and minimal in S phase of cell cycle. Cyclin D1 expression is located mainly to the proliferative zone of normal epithelial tissues. Localization of the cyclin D1 is mainly nuclear. Cyclin D is useful for lymphoma diagnostic, especially diagnosis of mantle cell lymphoma.
Cyclin D1, is cell cycle regulator and it is over expressed in a wide variety of human neoplasms. Cyclin D1 forms a complex with regulatory subunit of CDK4 or CDK6 kinases and it is required for cell cycle G1/S transition. The expression is maximal in G1 and minimal in S phase of cell cycle. Cyclin D1 expression is located mainly to the proliferative zone of normal epithelial tissues. Localization of the cyclin D1 is mainly nuclear. Cyclin D is useful for lymphoma diagnostic, especially diagnosis of mantle cell lymphoma.
CD8 T cell surface antigen belongs to the type I membrane protein and it is heterodimer of an alpha and a beta chain linked by two disulfide bonds. CD8 positive T-lymphocytes are cytotoxic cells and it thought to play a role in the process of T-cell mediated killing. CD8 antibody is useful for classification of lymphocytes and malignant lymphomas.
CD8 T cell surface antigen belongs to the type I membrane protein and it is heterodimer of an alpha and a beta chain linked by two disulfide bonds. CD8 positive T-lymphocytes are cytotoxic cells and it thought to play a role in the process of T-cell mediated killing. CD8 antibody is useful for classification of lymphocytes and malignant lymphomas.
The CD79 protein is a heterodimer with two CD79a and CD79b phosphoproteins. CD79a is specific for B-cells. The antigen appearing before the pre-B cell stage and it is still expressed at the plasma cell stage. Together with CD20, CD79a is one the most important marker for B-cell neoplasms.
The CD79 protein is a heterodimer with two CD79a and CD79b phosphoproteins. CD79a is specific for B-cells. The antigen appearing before the pre-B cell stage and it is still expressed at the plasma cell stage. Together with CD20, CD79a is one the most important marker for B-cell neoplasms.
CD7 transmembrane protein is a member of the immunoglobulin superfamily. This protein is found on thymocytes, mature T cells and NK-cells. It plays an essential role in T-cell interactions and also in T-cell/B-cell interaction during early lymphoid development.
CD7 transmembrane protein is a member of the immunoglobulin superfamily. This protein is found on thymocytes, mature T cells and NK-cells. It plays an essential role in T-cell interactions and also in T-cell/B-cell interaction during early lymphoid development.
CD7 transmembrane protein is a member of the immunoglobulin superfamily. This protein is found on thymocytes, mature T cells and NK-cells. It plays an essential role in T-cell interactions and also in T-cell/B-cell interaction during early lymphoid development.
CD7 transmembrane protein is a member of the immunoglobulin superfamily. This protein is found on thymocytes, mature T cells and NK-cells. It plays an essential role in T-cell interactions and also in T-cell/B-cell interaction during early lymphoid development.
CD50 (ICAM-3) that is expressed in virtually all leukocytes, belongs to the family of the intercellular adhesion molecules. It is also shown to be important part in immune response initiation. CD50 is a useful marker for non-hodgkins lymphoma and it is expressed in almost all the tumors with tendency to be lost in high grade lymphomas.
CD50 (ICAM-3) that is expressed in virtually all leukocytes, belongs to the family of the intercellular adhesion molecules. It is also shown to be important part in immune response initiation. CD50 is a useful marker for non-hodgkins lymphoma and it is expressed in almost all the tumors with tendency to be lost in high grade lymphomas.
The CD5 antigen is a transmembrane glycoprotein which is expressed on the most mature human T-cells and expression level of CD5 will be increased during T-cell maturation. CD5 is also expressed in a small subset of normal human B-cells as well. CD5 is expressed in most T-cell lymphomas and leukemias and negative expression of the CD5 in T-cell lymphoma indicates a worse prognosis. In B-cell lymphomas eg. small lymphocytic lymphoma, small-cell lymphoma (CD20+), and mantle cell lymphoma are typically CD5 positive and marginal zone lymphoma and follicular lymphoma, are CD5 negative.
The CD5 antigen is a transmembrane glycoprotein which is expressed on the most mature human T-cells and expression level of CD5 will be increased during T-cell maturation. CD5 is also expressed in a small subset of normal human B-cells as well. CD5 is expressed in most T-cell lymphomas and leukemias and negative expression of the CD5 in T-cell lymphoma indicates a worse prognosis. In B-cell lymphomas eg. small lymphocytic lymphoma, small-cell lymphoma (CD20+), and mantle cell lymphoma are typically CD5 positive and marginal zone lymphoma and follicular lymphoma, are CD5 negative.
CD45 is transmembrane protein that is present on all differentiated hematopoietic cells (including basophils, granulocytes, lymphocytes, macrophages / histiocytes, mast cells, monocytes, dendritic cells, medullary thymocytes, plasma cells). Erythrocytes and their immediate progenitors do not express CD45 antigen. This antigen is used in routine immunohistochemistry to differentiate between immune cell types, as well as to differentiate hematological malignancies from other tumors. CD 45 is a good marker for AML, ALCL and most B- and T-cell lymphomas. Epithelial tumors, follicular dendritic cell sarcomas, germ cell tumors, melanoma, mesothelioma do not express CD45.
CD45 is transmembrane protein that is present on all differentiated hematopoietic cells (including basophils, granulocytes, lymphocytes, macrophages / histiocytes, mast cells, monocytes, dendritic cells, medullary thymocytes, plasma cells). Erythrocytes and their immediate progenitors do not express CD45 antigen. This antigen is used in routine immunohistochemistry to differentiate between immune cell types, as well as to differentiate hematological malignancies from other tumors. CD 45 is a good marker for AML, ALCL and most B- and T-cell lymphomas. Epithelial tumors, follicular dendritic cell sarcomas, germ cell tumors, melanoma, mesothelioma do not express CD45.
The CD44 antigen, also referred as homing cell adhesion molecule (HCAM), is a multi-structural and multifunctional cell-surface glycoprotein involved in cellcell interactions, cell adhesion, and migration. Most tissues are CD44 positive, including astrocyte restricted precursor cells, breast myoepithelial cells, colon, lung type II pneumocytes, red blood cells, stomach, urothelial basal cells, uterus and white blood cells. Negative staining results is seen in testis, kidney tubular epithelium, cardiac muscle, hepatocytes. In disease, positive staining is seen in colorectal carcinoma (most), Langerhans histiocytosis, oligodendroglioma, thymoma, small cell prostate carcinoma.
The CD44 antigen, also referred as homing cell adhesion molecule (HCAM), is a multi-structural and multifunctional cell-surface glycoprotein involved in cellcell interactions, cell adhesion, and migration. Most tissues are CD44 positive, including astrocyte restricted precursor cells, breast myoepithelial cells, colon, lung type II pneumocytes, red blood cells, stomach, urothelial basal cells, uterus and white blood cells. Negative staining results is seen in testis, kidney tubular epithelium, cardiac muscle, hepatocytes. In disease, positive staining is seen in colorectal carcinoma (most), Langerhans histiocytosis, oligodendroglioma, thymoma, small cell prostate carcinoma.
CD43 (leukosialin, sialophorin) is a transmembrane mucin-like glycoprotein which expressed in plasma membrane especially in T-lymphocytes, some B-cells and cells from myelomonolineage. It is useful for lymphoma diagnostic and it expressed in most T-cell lymphomas and some B-cell lymphomas.
CD43 (leukosialin, sialophorin) is a transmembrane mucin-like glycoprotein which expressed in plasma membrane especially in T-lymphocytes, some B-cells and cells from myelomonolineage. It is useful for lymphoma diagnostic and it expressed in most T-cell lymphomas and some B-cell lymphomas.
The CD4 is membrane glycoprotein (58kDa) and it is highly expressed on human T-helper lymphocytes and thymocytes, as well as at lower levels on cells from monocyte lineage. CD4 is useful marker for recognition of different subtypes of lymphocytes and in diagnostic for T-lymphoblastic lymphomas and histiocytic neoplasia.
The CD4 is membrane glycoprotein (58kDa) and it is highly expressed on human T-helper lymphocytes and thymocytes, as well as at lower levels on cells from monocyte lineage. CD4 is useful marker for recognition of different subtypes of lymphocytes and in diagnostic for T-lymphoblastic lymphomas and histiocytic neoplasia.
Vimentin is a component of intermediate filament in mesenchymal cells, such as endothelial cells, fibroblasts, lymphocytes, and melanocytes. Anti-Vimentin is useful for assessing whether tissue samples have been processed and preserved properly. A panel of Anti-Vimentin and Anti-Keratin is useful for differentiating melanomas from large cell lymphomas and undifferentiated carcinomas. This diagnostic grade Vimentin IVD antibody stains melanomas and schwannomas, as well as endometrial endometrioid adenocarcinomas.
The protein encoded by this gene is T-cell receptor zeta, which together with T-cell receptor alpha/beta and gamma/delta heterodimers, and with CD3-gamma, -delta and -epsilon, forms the T-cell receptor-CD3 complex. The zeta chain plays an important role in coupling antigen recognition to several intracellular signal-transduction pathways. Low expression of the antigen results in impaired immune response. Two alternatively spliced transcript variants encoding distinct isoforms have been found for this gene.
The protein encoded by this gene is T-cell receptor zeta, which together with T-cell receptor alpha/beta and gamma/delta heterodimers, and with CD3-gamma, -delta and -epsilon, forms the T-cell receptor-CD3 complex. The zeta chain plays an important role in coupling antigen recognition to several intracellular signal-transduction pathways. Low expression of the antigen results in impaired immune response. Two alternatively spliced transcript variants encoding distinct isoforms have been found for this gene.
The protein encoded by this gene is the CD3-epsilon polypeptide, which together with CD3-gamma, -delta and -zeta, and the T-cell receptor alpha/beta and gamma/delta heterodimers, forms the T-cell receptor-CD3 complex. This complex plays an important role in coupling antigen recognition to several intracellular signal-transduction pathways. The genes encoding the epsilon, gamma and delta polypeptides are located in the same cluster on chromosome 11. The epsilon polypeptide plays an essential role in T-cell development. CD3e is an important pan T-cell marker for the classification of malignant lymphomas and lymphoid leukaemias.
The protein encoded by this gene is the CD3-epsilon polypeptide, which together with CD3-gamma, -delta and -zeta, and the T-cell receptor alpha/beta and gamma/delta heterodimers, forms the T-cell receptor-CD3 complex. This complex plays an important role in coupling antigen recognition to several intracellular signal-transduction pathways. The genes encoding the epsilon, gamma and delta polypeptides are located in the same cluster on chromosome 11. The epsilon polypeptide plays an essential role in T-cell development. CD3e is an important pan T-cell marker for the classification of malignant lymphomas and lymphoid leukaemias.
CD38 is a type II integral membrane glycoprotein which is present on early B and T cell lineages and activated B and T cells but is absent from most mature resting peripheral lymphocytes. CD38 is also found on thymocytes, pre-B cells, germinal center B cells, mitogen-activated T cells, monocytes and Ig-secreting plasma cells. CD38 acts as a NAD glycohydrolase in T lym- phocytes. On hematopoietic cells CD38 induces activation, proliferation, and differentiation of mature T and B cells and mediates apoptosis of myeloid and lymphoid progenitor cells. In addition to acting as a signaling receptor, CD38 is also an enzyme capable of producing several calcium-mobilizing metabo- lites, including cyclic adenosine diphosphate ribose (cADPR). CD38 also plays a role in maintaining survival of an invariant NK T (iNKT) cell subset that preferentially contributes to the maintenance of immunological tolerance.
CD38 is a type II integral membrane glycoprotein which is present on early B and T cell lineages and activated B and T cells but is absent from most mature resting peripheral lymphocytes. CD38 is also found on thymocytes, pre-B cells, germinal center B cells, mitogen-activated T cells, monocytes and Ig-secreting plasma cells. CD38 acts as a NAD glycohydrolase in T lym- phocytes. On hematopoietic cells CD38 induces activation, proliferation, and differentiation of mature T and B cells and mediates apoptosis of myeloid and lymphoid progenitor cells. In addition to acting as a signaling receptor, CD38 is also an enzyme capable of producing several calcium-mobilizing metabo- lites, including cyclic adenosine diphosphate ribose (cADPR). CD38 also plays a role in maintaining survival of an invariant NK T (iNKT) cell subset that preferentially contributes to the maintenance of immunological tolerance.
CD38 is a type II integral membrane glycoprotein which is present on early B and T cell lineages and activated B and T cells but is absent from most mature resting peripheral lymphocytes. CD38 is also found on thymocytes, pre-B cells, germinal center B cells, mitogen-activated T cells, monocytes and Ig-secreting plasma cells. On hematopoietic cells CD38 induces activation, proliferation, and differentiation of mature T and B cells and mediates apoptosis of myeloid and lymphoid progenitor cells. CD38 marker is useful for lymphoma diagnostic eg. using in plasmacytoma diagnostic.
CD38 is a type II integral membrane glycoprotein which is present on early B and T cell lineages and activated B and T cells but is absent from most mature resting peripheral lymphocytes. CD38 is also found on thymocytes, pre-B cells, germinal center B cells, mitogen-activated T cells, monocytes and Ig-secreting plasma cells. On hematopoietic cells CD38 induces activation, proliferation, and differentiation of mature T and B cells and mediates apoptosis of myeloid and lymphoid progenitor cells. CD38 marker is useful for lymphoma diagnostic eg. using in plasmacytoma diagnostic.
CD34 is a transmembrane glycoprotein with a molecular mass of approximately 110 kD that is selectively expressed on human hematopoietic progenitor cells, endothelial cells and some fibroblasts. It could act as a scaffold for the attachment of lineage specific glycans, allowing stem cells to bind to lectins expressed by stromal cells or other marrow components. CD34 is highly expressed on hematopoietic progenitors, as well as on endothelial cells. CD34 has been used to measure angiogenesis, which reportedly predicts tumor recurrence.
CD34 is a transmembrane glycoprotein with a molecular mass of approximately 110 kD that is selectively expressed on human hematopoietic progenitor cells, endothelial cells and some fibroblasts. It could act as a scaffold for the attachment of lineage specific glycans, allowing stem cells to bind to lectins expressed by stromal cells or other marrow components. CD34 is highly expressed on hematopoietic progenitors, as well as on endothelial cells. CD34 has been used to measure angiogenesis, which reportedly predicts tumor recurrence.
The human leukocyte differentiation antigen CD23 (FCER2) is a key molecule for B-cell activation and growth. It is the low-affinity receptor for IgE. The truncated molecule can be secreted, then functioning as a potent mitogenic growth factor. It is expressed on most mature, conventional B cells (but not on peritoneal CD5+ B cells), and can also be found on the surface of T cells, macrophages, platelets and EBV transformed B lymphoblasts. Expression of CD23 has been detected in neoplastic cells from cases of B cell chronic Lymphocytic leukemia. CD23 is expressed by B cells in the follicular mantle zone but not by proliferating germinal centre cells. CD23 is also expressed by eosinophils. CD23 is distinct from the high affinity IgE receptors found on basophils and mast cells, which mediate allergic reactions. The low affinity receptors are thought to play a role in isotype specific immunoregulation. The regulation of CD23 surface expression appears to be integral with the complex IgE system, which involves interactions of cells, cytokines, antibodies and regulatory factors.
The human leukocyte differentiation antigen CD23 (FCER2) is a key molecule for B-cell activation and growth. It is the low-affinity receptor for IgE. The truncated molecule can be secreted, then functioning as a potent mitogenic growth factor. It is expressed on most mature, conventional B cells (but not on peritoneal CD5+ B cells), and can also be found on the surface of T cells, macrophages, platelets and EBV transformed B lymphoblasts. Expression of CD23 has been detected in neoplastic cells from cases of B cell chronic Lymphocytic leukemia. CD23 is expressed by B cells in the follicular mantle zone but not by proliferating germinal centre cells. CD23 is also expressed by eosinophils. CD23 is distinct from the high affinity IgE receptors found on basophils and mast cells, which mediate allergic reactions. The low affinity receptors are thought to play a role in isotype specific immunoregulation. The regulation of CD23 surface expression appears to be integral with the complex IgE system, which involves interactions of cells, cytokines, antibodies and regulatory factors.
CD22 protein may be involved in the localization of B-cells in lymphoid tissues. CD22 is expressed in the cytoplasm and cell membrane of B-cells. CD22 is especially useful in diagnostics of hairy cell leukemia and classification of the B-cell lymphomas.
CD22 protein may be involved in the localization of B-cells in lymphoid tissues. CD22 is expressed in the cytoplasm and cell membrane of B-cells. CD22 is especially useful in diagnostics of hairy cell leukemia and classification of the B-cell lymphomas.
The CD20 antigen is present on human pre B lymphocytes and on B lymphocytes at all stages of maturation, except on plasma cells. Low level expression of the CD20 antigen has been detected on subpopulation of T lymphocytes. CD20 is expressed widely in the large majority of cases of B-cell leukaemia and lymphoma. The CD20 molecule is involved in regulation of B cell differentiation, presumably via its reported function as a Ca++ channel subunit.
The CD20 antigen is present on human pre B lymphocytes and on B lymphocytes at all stages of maturation, except on plasma cells. Low level expression of the CD20 antigen has been detected on subpopulation of T lymphocytes. CD20 is expressed widely in the large majority of cases of B-cell leukaemia and lymphoma. The CD20 molecule is involved in regulation of B cell differentiation, presumably via its reported function as a Ca++ channel subunit.
CD2 is a surface antigen of the human T-lymphocyte lineage that is expressed on all peripheral blood T-lymphocytes. It is one of the earliest T-cell markers, being present on more than 95% of thymocytes; it is also found on some natural killer cells but not on B lymphocytes. CD2 antibody is useful for lymphoma diagnostic.
CD2 is a surface antigen of the human T-lymphocyte lineage that is expressed on all peripheral blood T-lymphocytes. It is one of the earliest T-cell markers, being present on more than 95% of thymocytes; it is also found on some natural killer cells but not on B lymphocytes. CD2 antibody is useful for lymphoma diagnostic.
CD14 antigen is a GPI-linked glycoprotein with a molecular weight of 55kD. The CD14 antigen is expressed on cells of the myelomonocytic lineage including monocytes, macrophages and Langerhans cells. Low expression is observed on neutrophils and on human B cells. CD14 antigen is a receptor for bacterial lipopolysaccharide (LPS, endotoxin) and the lipopolysaccharide binding protein (LBP). LBP and CD14 antigen serves two physiological roles. These proteins act as opsonin and opsonic receptor, respectively, to promote the phagocytic uptake of bacteria or LPScoated particles by macrophages.
CD14 antigen is a GPI-linked glycoprotein with a molecular weight of 55kD. The CD14 antigen is expressed on cells of the myelomonocytic lineage including monocytes, macrophages and Langerhans cells. Low expression is observed on neutrophils and on human B cells. CD14 antigen is a receptor for bacterial lipopolysaccharide (LPS, endotoxin) and the lipopolysaccharide binding protein (LBP). LBP and CD14 antigen serves two physiological roles. These proteins act as opsonin and opsonic receptor, respectively, to promote the phagocytic uptake of bacteria or LPScoated particles by macrophages.
CD13 is a transmembrane protease which expressed widely in different tissues and cells. CD13 expressed especially cells of myeloid origin but also eg. in bile canaliculi of liver, fibroblasts, proximal tubules of kidney, and vascular endothelia. CD13 is useful marker for acute myeloid leukaemia (AML) and differentiating between hepatocellular carcinoma (HCC) and non-hepatocellular tumors.
CD13 is a transmembrane protease which expressed widely in different tissues and cells. CD13 expressed especially cells of myeloid origin but also eg. in bile canaliculi of liver, fibroblasts, proximal tubules of kidney, and vascular endothelia. CD13 is useful marker for acute myeloid leukaemia (AML) and differentiating between hepatocellular carcinoma (HCC) and non-hepatocellular tumors.
CD11c is cell surface transmembrane receptor which is mostly expressed on granulocytes, macrophages, monocytes, NK-cells, and some of T- and B-lymphocytes. CD11c is useful especially for diagnosis of hairy cell leukemia (HCL). CD11c can be offer great value for detection panel of HCL with DBA.44, CD103 and other HCL markers
CD11c is cell surface transmembrane receptor which is mostly expressed on granulocytes, macrophages, monocytes, NK-cells, and some of T- and B-lymphocytes. CD11c is useful especially for diagnosis of hairy cell leukemia (HCL). CD11c can be offer great value for detection panel of HCL with DBA.44, CD103 and other HCL markers
CD11b is a membranous protein with a role in adhesive interactions of many leukocytes, especially macrophages, and subsets of lymphocytes. The expression of CD11b increases during maturation and expression levels vary depending on the type of cell. CD11b can be used as common myeloid and NK cell marker. Useful marker for acute promyelocytic leukemia, hair cell leukemia and AML differentiations. Systemic lupus erythematosus is also shown to be associated with CD11b dysfunction.
CD11b is a membranous protein with a role in adhesive interactions of many leukocytes, especially macrophages, and subsets of lymphocytes. The expression of CD11b increases during maturation and expression levels vary depending on the type of cell. CD11b can be used as common myeloid and NK cell marker. Useful marker for acute promyelocytic leukemia, hair cell leukemia and AML differentiations. Systemic lupus erythematosus is also shown to be associated with CD11b dysfunction.
CD117 is a cell membrane protein encoded by the c-kit proto-oncogene. CD117 is expressed in mast cells, skin melanocytes and interstitial Cajal cells (ICC). These cells show a strong membrane and cytoplasmic staining. CD117 is also expressed in various epithelia (salivary glands, renal tubular cells etc.). Appendix serves as a good positive and negative control tissue. Neoplasms such as gastrointestinal stromal tumor (GIST), mast cell neoplasms and many other (seminoma, Mercel cell carcinoma etc.) express CD117. This antibody (together with DOG-1, CD34, SMA) is of great importance in the diagnosis of GIST, because of specific treatment of GIST patient with Gleveec.
CD117 is a cell membrane protein encoded by the c-kit proto-oncogene. CD117 is expressed in mast cells, skin melanocytes and interstitial Cajal cells (ICC). These cells show a strong membrane and cytoplasmic staining. CD117 is also expressed in various epithelia (salivary glands, renal tubular cells etc.). Appendix serves as a good positive and negative control tissue. Neoplasms such as gastrointestinal stromal tumor (GIST), mast cell neoplasms and many other (seminoma, Mercel cell carcinoma etc.) express CD117. This antibody (together with DOG-1, CD34, SMA) is of great importance in the diagnosis of GIST, because of specific treatment of GIST patient with Gleveec.
CD10 is a 100kDa glycoprotein, also designated Common Acute Lymphocytic Leukemia Antigen (CALLA). It is a cell surface enzyme with neutral metalloendopeptidase activity which inactivates a variety of biologically active peptides. CD10 is expressed on the cells of lymphoblastic, Burkitts, and follicular germinal center lymphomas, and on cells from patients with chronic myelocytic leukemia (CML). It is also expressed on the surface of normal early lymphoid progenitor cells, immature B cells within adult bone marrow and germinal center B cells within lymphoid tissue. CD10 is also present on breast myoepithelial cells, bile canaliculi, fibroblasts, with especially high expression on the brush border of kidney and gut epithelial cells.
CD10 is a 100kDa glycoprotein, also designated Common Acute Lymphocytic Leukemia Antigen (CALLA). It is a cell surface enzyme with neutral metalloendopeptidase activity which inactivates a variety of biologically active peptides. CD10 is expressed on the cells of lymphoblastic, Burkitts, and follicular germinal center lymphomas, and on cells from patients with chronic myelocytic leukemia (CML). It is also expressed on the surface of normal early lymphoid progenitor cells, immature B cells within adult bone marrow and germinal center B cells within lymphoid tissue. CD10 is also present on breast myoepithelial cells, bile canaliculi, fibroblasts, with especially high expression on the brush border of kidney and gut epithelial cells.
Caveolin-1 is a protein which is major structural component of the cell membrane caveolae. Caveolae is structure of the cell membrane invagination. Caveolin-1 is widely expressed in the normal tissue, eg. muscle tissue, vascular endothelia, fibroblasts and adipocytes. Caveolin-1 is useful in lung marker panel, especially in differentiating diagnosis of the epithelioid mesothelioma from lung adenocarcinoma.
Caveolin-1 is a protein which is major structural component of the cell membrane caveolae. Caveolae is structure of the cell membrane invagination. Caveolin-1 is widely expressed in the normal tissue, eg. muscle tissue, vascular endothelia, fibroblasts and adipocytes. Caveolin-1 is useful in lung marker panel, especially in differentiating diagnosis of the epithelioid mesothelioma from lung adenocarcinoma.
Calretinin is a calcium-binding protein and it is expressed in neurons and in nervous system. Calretinin is also expressed in mesothelial cells and steroid producing cells eg. Leydig cells and adrenal cortical cells as well as fat cells and some neuroendocrine cells. Calretinin located in the cells to nucleus and cytoplasm. Calretinin is useful for mesothelioma diagnostic (differentiate diagnostic between mesothelioma from carcinoma) and it is expressed in most malignant mesothelioma.
Calretinin is a calcium-binding protein and it is expressed in neurons and in nervous system. Calretinin is also expressed in mesothelial cells and steroid producing cells eg. Leydig cells and adrenal cortical cells as well as fat cells and some neuroendocrine cells. Calretinin located in the cells to nucleus and cytoplasm. Calretinin is useful for mesothelioma diagnostic (differentiate diagnostic between mesothelioma from carcinoma) and it is expressed in most malignant mesothelioma.
Carbonic anhydrase 9 (CA9) is a member of the zinc metalloenzymes that catalyse the reversible hydration of carbon dioxide and is anchored to cell membrane. CA9 is expressed in human gastrointestinal tract, chiefly in stomach, and bile ducts of liver. In neoplasia, high expression levels have been reported in different carcinomas, especially in clear-cell renal cell carcinoma. CA9 is also upregulated in hypoxia.
Carbonic anhydrase 9 (CA9) is a member of the zinc metalloenzymes that catalyse the reversible hydration of carbon dioxide and is anchored to cell membrane. CA9 is expressed in human gastrointestinal tract, chiefly in stomach, and bile ducts of liver. In neoplasia, high expression levels have been reported in different carcinomas, especially in clear-cell renal cell carcinoma. CA9 is also upregulated in hypoxia.
Beta-Catenin is a member of catenin family together with alpha and gamma catenin. It mediates cell-cell adhesion with cadherins and it is key regulatory protein in signaling through the WNT pathway. Beta catenin has a role in cellular proliferation, differentiation and development. Mutations in beta catenin gene (CTNNB1) leads accumulation of the beta catenin protein in cytoplasm and nucleus in different type of tumors eg. endometrial carcinoma and desmoid tumors. This antibody is useful in differentiation diagnostic of tumors.
Beta-Catenin is a member of catenin family together with alpha and gamma catenin. It mediates cell-cell adhesion with cadherins and it is key regulatory protein in signaling through the WNT pathway. Beta catenin has a role in cellular proliferation, differentiation and development. Mutations in beta catenin gene (CTNNB1) leads accumulation of the beta catenin protein in cytoplasm and nucleus in different type of tumors eg. endometrial carcinoma and desmoid tumors. This antibody is useful in differentiation diagnostic of tumors.
Beta-Catenin is a member of catenin family together with alpha and gamma catenin. It mediates cell-cell adhesion with cadherins and it is key regulatory protein in signaling through the WNT pathway. Beta catenin has a role in cellular proliferation, differentiation and development. Mutations in beta catenin gene (CTNNB1) leads accumulation of the beta catenin protein in cytoplasm and nucleus in different type of tumors eg. endometrial carcinoma and desmoid tumors. This antibody is useful in differentiation diagnostic of tumors.
Beta-Catenin is a member of catenin family together with alpha and gamma catenin. It mediates cell-cell adhesion with cadherins and it is key regulatory protein in signaling through the WNT pathway. Beta catenin has a role in cellular proliferation, differentiation and development. Mutations in beta catenin gene (CTNNB1) leads accumulation of the beta catenin protein in cytoplasm and nucleus in different type of tumors eg. endometrial carcinoma and desmoid tumors. This antibody is useful in differentiation diagnostic of tumors.
B-cell lymphoma/leukaemia-2 (Bcl-2) is an inhibitor of apoptosis, and its expression is generally abundant in cells which dividing and differentiating. In lymphatic tissue, Bcl-2 is highly expressed in T-cells, maturating B cells as well as mature B-cells. However, expression level in germinal center B-cells is downregulated. Overexpression of the Bcl-2 is common in leukemia and various carcinomas and sarcomas. Overexpression is common especially in non-Hodgkins lymphoma. Bcl-2 is helpful to classification of the follicular lymphoma or other lymphomas
B-cell lymphoma/leukaemia-2 (Bcl-2) is an inhibitor of apoptosis, and its expression is generally abundant in cells which dividing and differentiating. In lymphatic tissue, Bcl-2 is highly expressed in T-cells, maturating B cells as well as mature B-cells. However, expression level in germinal center B-cells is downregulated. Overexpression of the Bcl-2 is common in leukemia and various carcinomas and sarcomas. Overexpression is common especially in non-Hodgkins lymphoma. Bcl-2 is helpful to classification of the follicular lymphoma or other lymphomas
The androgen receptor (AR), also known as NR3C4 (nuclear receptor subfamily 3, group C, member 4), is a type of nuclear receptor which is activated by binding of either of the androgenic hormones testosterone or dihydrotestosterone in the cytoplasm and then translocating into the nucleus. The androgen receptor is most closely related to the progesterone receptor, and progestins in higher dosages can block the androgen receptor. The main function of the androgen receptor is as a DNA binding transcription factor which regulates gene expression; however, the androgen receptor has other functions as well. Androgen regulated genes are critical for the development and maintenance of the male sexual phenotype.
The androgen receptor (AR), also known as NR3C4 (nuclear receptor subfamily 3, group C, member 4), is a type of nuclear receptor which is activated by binding of either of the androgenic hormones testosterone or dihydrotestosterone in the cytoplasm and then translocating into the nucleus. The androgen receptor is most closely related to the progesterone receptor, and progestins in higher dosages can block the androgen receptor. The main function of the androgen receptor is as a DNA binding transcription factor which regulates gene expression; however, the androgen receptor has other functions as well. Androgen regulated genes are critical for the development and maintenance of the male sexual phenotype.
AMACR (alpha-methylacyl-CoA racemase) has been recently described as prostate cancer-specific gene that encodes a protein involved in the beta-oxidation of branched chain fatty acids. Expression of AMACR protein is found in prostatic adenocarcinoma but not in benign prostatic tissue. It stains premalignant lesions of prostate: high-grade prostatic intraepithelial neoplasia (PIN) and atypical adenomatous hyperplasia. AMACR can be used as a positive marker for PIN. Defects in AMACR are the cause of congenital bile acid synthesis defect type 4 (CBAS4); also known as cholestasis, intrahepatic, with defective conversion of trihydroxycoprostanic acid to cholic acid or trihydroxycoprostanic acid in bile. Clinical features include neonatal jaundice, intrahepatic cholestasis, bile duct deficiency and absence of cholic acid from bile.
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