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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. Phagoptosis - Wikipedia

    en.wikipedia.org/wiki/Phagoptosis

    Phagocytosis of an otherwise-viable cell may occur because the cell is recognised as stressed, activated, senescent, damaged, pathogenic or non-self, or is misrecognised. Cells are phagocytosed as a result of: i) expressing eat-me signals on their surface, ii) losing don’t-eat-me signals, and/or iii) binding of opsonins .

  4. Cell physiology - Wikipedia

    en.wikipedia.org/wiki/Cell_physiology

    In phagocytosis, a cell surrounds particles including food particles through an extension of the pseudopods, which are located on the plasma membrane. The pseudopods then package the particles in a food vacuole. The lysosome, which contains hydrolytic enzymes, then fuses with the food vacuole. Hydrolytic enzymes, also known as digestive enzymes ...

  5. Nonspecific immune cell - Wikipedia

    en.wikipedia.org/wiki/Nonspecific_immune_cell

    Phagocytosis, derived from the Greek words phagein, meaning to eat, kytos or cell, and “osis” meaning process, was first described by Élie Metchnikoff, who won the Nobel Prize 100 years ago. Phagocytosis involves the internalization of solids, such as bacteria, by an organism. Phagocytosis in Three Steps

  6. Thanatology - Wikipedia

    en.wikipedia.org/wiki/Thanatology

    Russian scientist Élie Metchnikoff pioneered the field of thanatology and was famous for his work in microbiology and the discovery of phagocytosis "Phagocytosis is the process by which a cell—often a phagocyte or protist—engulfs a solid particle to form an internal compartment known as a phagosome." In 1903, he established a scientific ...

  7. Endocytosis - Wikipedia

    en.wikipedia.org/wiki/Endocytosis

    Endocytosis is a cellular process in which substances are brought into the cell. The material to be internalized is surrounded by an area of cell membrane, which then buds off inside the cell to form a vesicle containing the ingested materials. Endocytosis includes pinocytosis (cell drinking) and phagocytosis (cell eating). It is a form of ...

  8. Mononuclear phagocyte system - Wikipedia

    en.wikipedia.org/wiki/Mononuclear_phagocyte_system

    The mononuclear phagocyte system is part of both humoral and cell-mediated immunity. The mononuclear phagocyte system has an important role in defense against microorganisms, including mycobacteria, fungi, bacteria, protozoa, and viruses. Macrophages remove senescent erythrocytes, leukocytes, and megakaryocytes by phagocytosis and digestion.

  9. Phagocyte - Wikipedia

    en.wikipedia.org/wiki/Phagocyte

    Unbound phagocyte surface receptors do not trigger phagocytosis. 2. Binding of receptors causes them to cluster. 3. Phagocytosis is triggered and the particle is taken up by the phagocyte. Phagocytosis is the process of taking in particles such as bacteria, invasive fungi, parasites, dead host cells, and cellular and foreign debris by a cell. [22]