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Typhoidal Salmonellae induce their own phagocytosis by host macrophages in vivo, and inhibit digestion by lysosomal action, thereby using macrophages for their own replication and causing macrophage apoptosis. [25] Macrophages can digest more than 100 bacteria before they finally die due to their own digestive compounds.
The gut-associated lymphoid tissue lies throughout the intestine, covering an area of approximately 260–300 m 2. [5] In order to increase the surface area for absorption, the intestinal mucosa is made up of finger-like projections (), covered by a monolayer of epithelial cells, which separates the GALT from the lumen intestine and its contents.
The mucosa-associated lymphoid tissue (MALT), also called mucosa-associated lymphatic tissue, is a diffuse system of small concentrations of lymphoid tissue found in various submucosal membrane sites of the body, such as the gastrointestinal tract, nasopharynx, thyroid, breast, lung, salivary glands, eye, and skin.
MIP-1γ is another macrophage inflammatory protein and according to the new nomenclature is named CCL9. [3] It is produced mainly by follicle-associated epithelial cells and is responsible for chemotaxis of dendritic cells and macrophages into Peyer's patches in gut through binding of CCR1. [11] MIP-1δ or MIP-5 (CCL15) binds also CCR1 and CCR3 ...
Tyr-Lys-Pro exert considerable regulatory effect on several macrophage functions including: phagocytosis, cell locomotion, superoxide anion production, IgE-dependent cellular cytotoxicity, β-glycuronidase release, and IL-1 production. [2] Selank is an elongated version of tuftsin with a Pro-Gly-Pro appended, i.e. Thr-Lys-Pro-Arg-Pro-Gly-Pro ...
The mononuclear phagocyte system and the monocyte macrophage system refer to two different entities, often mistakenly understood as one. [citation needed] "Reticuloendothelial system" is an older term for the mononuclear phagocyte system, but it is used less commonly now, as it is understood that most endothelial cells are not macrophages. [2]
Control of the digestive system is also maintained by ENS, which can be thought of as a digestive brain that can help to regulate motility, secretion and growth. Sensory information from the digestive system can be received, integrated and acted upon by the enteric system alone. When this occurs, the reflex is called a short reflex. [4]
General macrophage targets [10] [8] Kupffer cell: Monocyte: Macrophage: Stellate macrophages; Kupffer–Browicz cells; Liver macrophage; Macrophagocytus stellatus; 20-21 Foreign debris; General macrophage targets [11] [8] Alveolar macrophage: Monocyte: Macrophage: Pulmonary macrophage; Dust cell; 20-21 Carbon debris from lungs; General ...