5 result(s) for 'Histopathology'
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Antigen BackgroundProgrammed death-ligand 1 (PD-L1), CD274 or B7 Homolog 1(B7-H1) is a protein encoded by the CD274 gene. When bound to its ligands, PD-1 and B7.1, it plays an immunosuppressive role by inhibiting T-cell activity. Overexpression of PD-L1 by cancer cells may enable them to evade the host immune response, conferring a growth advantage to such tumours. PD-L1 expression levels detected by immunohistochemistry can therefore be of progn...
Antigen Background
Mammaglobin is a 10 kDa glycoprotein that belongs to the uteroglobin family of proteins. It was first described in 1996 and found to be overexpressed in breast cancer. Mammaglobin has been suggested as a useful marker for carcinomas of unknown primary origin, with expression unaltered from the primary site.
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Mammaglobin is recommended for the detection of specific antigens of interest in normal and neoplastic tissues...
Antigen Background
The c-kit proto-oncogene encodes a transmembrane receptor with tyrosine kinase activity, c-kit (CD117), which is closely-related to the platelet-derived growth factor receptor family. c-kit plays a role during hematopoiesis, gametogenesis and melanogenesis. The expression of CD117 antigen is of particular interest in the study of gastrointestinal stromal tumors (GIST), small lung cell carcinomas and in melanomas.
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CD1...
Antigen Background
CD103, also known as alpha E integrin & human mucosal lymphocyte antigen 1, is an integrin protein with expression on intraepithelial T cells & some peripheral regulatory T cells. CD103 is expressed at high levels on tumour-infiltrating FOXP3-positive regulatory T cells in cancer and CD103-positive T cells are strongly associated with patient survival in high-grade serous ovarian cancer.
CD103 expression has been suggested as a...
Antigen Background
p120 Catenin is a regulator of cell-cell adhesion, achieved through interaction with classical and Type II cadherins. Evidence also exists for a role in the regulation of cadherin availability on the cell surface. p120 Catenin also regulates actin dynamics, placing it as a potential master regulator of the cell motility/cell adhesion phenotypes.Recent studies have suggested a tumor-suppression role for p120, with loss of p120 e...