CD5 [EP77]

CD5 (Lymphocyte antigen T1/Leu-1) is a transmembrane glycoprotein which has been implicated as a receptor in the regulation of T-cell proliferation. CD5 antibody labels a variety of T lymphocytes, mantle zone lymphocytes and a small subset of B lymphocytes. In tumors, CD5 is expressed on T-cell malignancies, Bcell chronic lymphocytic leukemia (CLL)/small lymphocytic lymphoma (SLL), and mantle-cell lymphoma. It is a useful diagnostic tool for these tumors. In addition, anti-CD5 is helpful in diagnosis of thymic carcinoma (CD5 positive).