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In cell biology, a phagosome is a vesicle formed around a particle engulfed by a phagocyte via phagocytosis. Professional phagocytes include macrophages, neutrophils, and dendritic cells (DCs). [1] A phagosome is formed by the fusion of the cell membrane around a microorganism, a senescent cell or an apoptotic cell.
The phagocyte then stretches itself around the bacterium and engulfs it. Phagocytosis of bacteria by human neutrophils takes on average nine minutes. [25] Once inside this phagocyte, the bacterium is trapped in a compartment called a phagosome. Within one minute the phagosome merges with either a lysosome or a granule to form a phagolysosome.
Phagosome Formation: Once the phagocytic cup has almost completely surrounded the target, the membrane extensions seal together, forming an intact phagosome containing the engulfed material. [9] Phagosome Maturation: The newly formed phagosome undergoes a series of transitions similar to endosome maturation. This process involves the recycling ...
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.
Salk Institute researchers have identified a key protein that may help users of GLP-1 drugs such as Ozempic and Wegovy maintain muscle mass while losing weight.
Health experts say having a good sex life is linked to several health benefits, including reducing the risk of cancer.
A majority of macrophages are stationed at strategic points where microbial invasion or accumulation of foreign particles is likely to occur. These cells together as a group are known as the mononuclear phagocyte system and were previously known as the reticuloendothelial system. Each type of macrophage, determined by its location, has a ...
The top Democrat on the Senate Commerce Committee said Thursday the United States needs to reconsider the significant military helicopter flights near one of the most congested U.S. airports after ...