Maturation of antigen-presenting cell

Maturation of antigen-presenting cells refers to the process by which cells such as dendritic cells, macrophages, and B cells develop from an immature, antigen-capturing state into a mature state competent for T cell activation. This maturation involves increased expression of MHC and costimulatory molecules, secretion of cytokines/chemokines, phenotypic changes such as dendrite formation, and migration to lymphoid organs to present antigen to T cells. The process is essential for mounting robust adaptive immune responses and distinguishing tolerance from immunity; it is controlled by signals including microbial products (e.g., LPS), inflammatory cytokines, and engagement of cell surface receptors like CD40[3][7]. Disregulation can play a role in immune escape in cancer, inappropriate inflammation, or autoimmunity. This entry is best classified as a biological process, not a discrete molecular target. For work with molecular targets, focus on specific molecules that mediate or mark APC maturation (e.g., CD40, TLR4, MHC class II, CD80/CD86) rather than the process overall[3][7].

Other names

APC maturationDendritic cell maturationDC maturationAntigen-presenting cell activation