Definitions for "Antigen presenting cell"
a type of cell in the immune system. It presents antigen to lymphocytes, e.g. T cells. Antigen presenting cells include macrophages and dendritic cells.
A group of cells which can alert the immune system which includes dendritic cells (see below)
A specialized cell that sticks pieces of antigen combined with self 'display' molecules on its surface for passing immune cells to survey. Dendritic cells, macrophages and B cells are the main antigen-presenting cells.