Definitions for macrophageˈmæk rəˌfeɪdʒ

This page provides all possible meanings and translations of the word macrophage

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  1. macrophage(noun)

    a large phagocyte; some are fixed and other circulate in the blood stream

WiktionaryRate this definition:(0.00 / 0 votes)

  1. macrophage(Noun)

    A white blood cell that phagocytizes necrotic cell debris and foreign material, including viruses, bacteria, and tattoo ink. It presents foreign antigens on MHC II to lymphocytes. Part of the innate immune system.

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  1. Macrophage

    Macrophages are cells produced by the differentiation of monocytes in tissues. Macrophages were discovered by Ilya Mechnikov, a Russian bacteriologist, in 1884. Human macrophages are about 21 micrometres in diameter. Monocytes and macrophages are phagocytes. Macrophages function in both non-specific defense as well as help initiate specific defense mechanisms of vertebrate animals. Their role is to phagocytose, or engulf and then digest, cellular debris and pathogens, either as stationary or as mobile cells. They also stimulate lymphocytes and other immune cells to respond to pathogens. They are specialized phagocytic cells that attack foreign substances, infectious microbes and cancer cells through destruction and ingestion. Macrophages can be identified by specific expression of a number of proteins including CD14, CD40, CD11b, CD64, F4/80 /EMR1, lysozyme M, MAC-1/MAC-3 and CD68 by flow cytometry or immunohistochemical staining. They move by action of amoeboid movement.

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