CD8 Positive Memory T-Lymphocyte

**Semantic type:** Cell

**Definition:** T lymphocytes that are derived from naïve CD8 expressing T cells that have been primed through antigen exposure, followed by a cycle of proliferation (expansion) and apoptosis (contraction), that yields a long-lasting population of highly antigen-specific memory cells. These cells can be identified by the presence of CD8 and the absence of CD45RA molecules on their surface.

**Synonyms:** - CD8 Positive Memory T-Cell - CD8+ Memory T Cell - CD8+ Memory T Lymphocyte - CD8+ Memory T-Cell - CD8+ Memory T-Lymphocyte - CD8-Positive Memory T-Lymphocyte