CD5 antigen

CD5 antigen

A membrane glycoprotein found on all human T cells, but on greater quantity on helper T cells. Found also on peritoneal and pleural B cells.
References in periodicals archive ?
Up-regulation and down-regulation of cell surface and MRNA expression of CD5 antigen by various humoral factors on murine 70z/3 pre-B cell leukemia cell line: IL-4 down-regulates CD5 antigen expression.
Intravascular large B-cell lymphoma: the CD5 antigen is expressed by a subset of cases.
The CD5 antigen is expressed on mature T cells and some B cells, but not on stem cells or other tissues.