Definitions for "Antigen-presenting cell"
Antigen-processing cells ingest antigen and chop it into small fragments that are then packaged within the major histocompatibility complex molecules and shuttled to the surface of the cell membrane for presentation. Professional antigen presenting cells are dendritic cells, macrophages, and B cells.
a cell (e.g., dendritic cell, macrophage) that processes antigen proteins and displays short peptide fragments on its surface for recognition by T-cells.
A cell that can process an infectious agent and present pieces of it (antigens) to T-cells. Dendritic cells and macrophages function as APCs.