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Several testis and urothelial cancers showed weak to moderate cytoplasmic positivity. Remaining cancers were mainly negative.
GENE INFORMATION
Gene name
PDCD1 (HGNC Symbol)
Synonyms
CD279, hSLE1, PD-1, PD1, SLEB2
Description
Programmed cell death 1 (HGNC Symbol)
Entrez gene summary
This gene encodes a cell surface membrane protein of the immunoglobulin superfamily. This protein is expressed in pro-B-cells and is thought to play a role in their differentiation. In mice, expression of this gene is induced in the thymus when anti-CD3 antibodies are injected and large numbers of thymocytes undergo apoptosis. Mice deficient for this gene bred on a BALB/c background developed dilated cardiomyopathy and died from congestive heart failure. These studies suggest that this gene product may also be important in T cell function and contribute to the prevention of autoimmune diseases. [provided by RefSeq, Jul 2008]