phagocyte


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Related to phagocyte: mononuclear phagocyte system

phagocyte

 [fag´o-sīt]
any cell capable of ingesting particulate matter, usually referring to a microphage, macrophage, or monocyte. They ingest microorganisms and other particulate antigens that are coated with antibody or complement (opsonized), a process mediated by specific cell-surface receptors. Other cell types exhibit phagocytosis, but not specific phagocytosis of opsonized particles.

phag·o·cyte

(fag'ō-sīt),
A cell that can ingest bacteria, foreign particles, and other cells. Phagocytes ingest and kill microbes, present antigen to lymphocytes, scavenge degenerating material, and release mediators. classes: 1) microphages, polymorphonuclear leukocytes that ingest chiefly bacteria; 2) macrophages, mononucleated cells (histiocytes and monocytes) that are largely scavengers, ingesting dead tissue and degenerated cells.
[phago- + G. kytos, cell]

phagocyte

/phago·cyte/ (fag´o-sīt) any cell that ingests microorganisms or other cells and foreign particles, such as a microphage, macrophage, or monocyte.phagocyt´ic

phagocyte

(făg′ə-sīt′)
n.
A cell, such as a white blood cell, that engulfs and absorbs waste material, harmful microorganisms, or other foreign bodies in the bloodstream and tissues.

phag′o·cyt′ic (-sĭt′ĭk) adj.

phagocyte

[fag′əsīt]
Etymology: Gk, phagein + kytos, cell
a cell that is able to surround, engulf, and digest microorganisms and cellular debris. Fixed noncirculating phagocytes include the fixed macrophages. Free circulating phagocytes include the polymorphonuclear neutrophils . phagocytic, adj.

phagocyte

A cell (e.g., macrophage, neutrophil, eosinophil, etc.) capable of phagocytosing (engulfing) particles (e.g., bacteria and other microorganisms, foreign matter, etc.).

phag·o·cyte

(fag'ō-sīt)
A cell possessing the property of ingesting bacteria, foreign particles, and other cells. Phagocytes are divided into two general classes: 1) microphages, polymorphonuclear leukocytes that ingest chiefly bacteria; and 2) macrophages, mononucleated cells (histiocytes and monocytes) that are largely scavengers, ingesting dead tissue and degenerated cells.
[phago- + G. kytos, cell]

phagocyte

An AMOEBOID cell of the immune system that responds to contact with a foreign object, such as a bacterium, by surrounding, engulfing and digesting it. Phagocytes occur widely throughout the body wherever they are likely to be required. Some wander freely throughout the tissues. They include macrophages and neutrophil polymorphonuclear leukocytes (‘polymorphs’). From the Greek phago , eating and kutos , a hollow or receptacle.

phagocyte

a cell that is capable of amoeboid movement, flowing round and engulfing material from its surroundings. Such cells are capable of discriminating between different particles. For example, phagocytic white blood cells will engulf only certain BACTERIA. Phagocytes form an important defence mechanism in higher animals, particularly against bacteria which are engulfed and digested. See MACROPHAGE.

phag·o·cyte

(fag'ō-sīt)
Cell that can ingestbacteria, foreign particles, and other cells.
[phago- + G. kytos, cell]

phagocyte (fag´əsīt),

n a cell that ingests microorganisms, cells, or other substances.

phagocyte

any cell that ingests microorganisms or other cells and foreign particles.
References in periodicals archive ?
The Weill Cornell researchers studied more than 500 Crohns disease patients and found that those who carry a homozygous mutation in the CX3CR1 gene have a reduced gut antifungal response, much like that seen in the mice lacking CX3CR1+ phagocytes.
Activation of the superoxide-producing phagocyte NADPH oxidase requires co-operation between the tandem SH3 domains of p47phox in recognition of a polyproline type II helix and an adjacent alpha-helix of p22phox.
At the same time, complement proteins coat the surface of pathogens, signalling and providing receptor binding sites for professional phagocytes to attach--a process called opsonisation.
The respiratory burst activity of phagocytes has been used frequently as an indicator of nonspecific immunity in fish (Anderson and Siwicki, 1995; Sahoo and Mukherjee, 2002; Sahoo et al.
4-6 The activation of the phagocytes then leads to the production of free radicals.
The phagocytes were prompted to release "extra-cellular traps" - net-like webs of DNAbased filaments embedded with anti-microbial molecules.
The oxidative radical production by phagocytes during respiratory burst was measured by the nitro-blue-tetrazolium (NBT; Sigma, USA) assay described by Anderson and Siwicki (1995) with modifications by Kumari and Sahoo (2005).
Other phagocytosis tests can be applied to measure only bacterial degradation, but these methods are based on counting viable bacteria after phagocyte lysis and thus are costly in terms of time and effort (9).
Neutrophils are the most abundant and efficient circulating phagocyte and provide the first line of phagocytic defense in an infection.
Neutrophils are white blood cells and a type of phagocyte.
The similarities of the morphological, cytochemical, and functional characteristics of these cells have led to the concept of a monuclear phagocyte system (Van Furth et al.
It has been reported that insulin exerts a very strong effect on macrophage action by increasing pyruvate dehydrogenase (PDH) complex activity and some other enzymes that play an important role in their phagocyte capacity.