An antigen-presenting cell (APC) or accessory cell is a cell that displays foreign antigen complexes with major histocompatibility complex (MHC) on their surfaces. T-cells may recognize these complexes using their T-cell receptors (TCRs). These cells process antigens and present them to T-cells.
Read more about Antigen-presenting Cell: Types, Interaction With T Cells
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—Willis Cooper. Rowland V. Lee. Wolf von Frankenstein (Basil Rathbone)