Medical Dictionary

antigen-presenting cell


antigen–presenting cell

noun

Definition of ANTIGEN-PRESENTING CELL

:  any of various cells (as a macrophage or a B cell) that take up and process an antigen into a form that when displayed at the cell surface in combination with a molecule of the major histocompatibility complex is recognized by and serves to activate a specific helper T cell
February 26, 2015
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