Are Memory T Cells Cd8

CD8 T cells of memory phenotype and function can arise in response to self-peptide and/or in a lymphopenic environment in response to cytokines that trigger homeostatic proliferation (“virtual” and “innate” memory) (35, 36).

Are memory T cells CD4?

CD4 T cells play a central role in the immune system coordinating both adaptive and innate responses. CD4 memory T cells, however, have a much less well defined role, in fact their very existence is sometimes called into question [1–3]. … The surviving cells are memory cells [4, 5].

Which cell type can activate a memory T cell?

During a secondary infection, memory T cells in peripheral tissues can be directly activated by pro-inflammatory cytokines to induce effector functions and can interact with antigen-bearing dendritic cells to generate a localized secondary effector T-cell response outside of the draining lymphoid tissue.