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  2. Phagocytosis - Wikipedia

    en.wikipedia.org/wiki/Phagocytosis

    Phagocytosis (from Ancient Greek φαγεῖν (phagein) 'to eat' and κύτος (kytos) 'cell') is the process by which a cell uses its plasma membrane to engulf a large particle (≥ 0.5 μm), giving rise to an internal compartment called the phagosome. It is one type of endocytosis. A cell that performs phagocytosis is called a phagocyte.

  3. Fc receptor - Wikipedia

    en.wikipedia.org/wiki/Fc_receptor

    Their activity stimulates phagocytic or cytotoxic cells to destroy microbes, or infected cells by antibody-mediated phagocytosis or antibody-dependent cell-mediated cytotoxicity. Some viruses such as flaviviruses use Fc receptors to help them infect cells, by a mechanism known as antibody-dependent enhancement of infection.

  4. Receptor-mediated endocytosis - Wikipedia

    en.wikipedia.org/wiki/Receptor-mediated_endocytosis

    The role of receptor-mediated endocytosis is well recognized to up take downregulation of transmembrane signal transduction but can also promote sustained signal transduction. [3] The activated receptor becomes internalised and is transported to late endosomes and lysosomes for degradation. However, receptor-mediated endocytosis is also ...

  5. Endocytosis - Wikipedia

    en.wikipedia.org/wiki/Endocytosis

    Endocytosis pathways can be subdivided into four categories: namely, receptor-mediated endocytosis (also known as clathrin-mediated endocytosis), caveolae, pinocytosis, and phagocytosis. [3] Clathrin-mediated endocytosis is mediated by the production of small (approx. 100 nm in diameter) vesicles that have a morphologically characteristic coat ...

  6. Macrophage - Wikipedia

    en.wikipedia.org/wiki/Macrophage

    Macrophages can internalize antigens through receptor-mediated phagocytosis. [28] Macrophages have a wide variety of pattern recognition receptors (PRRs) that can recognize microbe-associated molecular patterns (MAMPs) from pathogens.

  7. Mannose receptor - Wikipedia

    en.wikipedia.org/wiki/Mannose_receptor

    The mannose receptor (Cluster of Differentiation 206, CD206) is a C-type lectin primarily present on the surface of macrophages, immature dendritic cells and liver sinusoidal endothelial cells, but is also expressed on the surface of skin cells such as human dermal fibroblasts and keratinocytes.

  8. Opsonin - Wikipedia

    en.wikipedia.org/wiki/Opsonin

    Opsonins induce phagocytosis of targets by binding the targets (e.g. bacteria) and then also binding phagocytic receptors on phagocytes. Thus, opsonins act as bridging molecules between the target and the phagocyte, bringing them into contact, and then usually activating the phagocytic receptor to induce engulfment of the target by the phagocyte.

  9. Cytosis - Wikipedia

    en.wikipedia.org/wiki/Cytosis

    Receptor-mediated endocytosis Receptor-mediated endocytosis is a mode of pinocytosis. Proteins in the clathrin coat on the plasma membrane have propensity to bind and trap macromolecules or ligands. However, it is not the receptors in the pit that caused the pinocytosis.