phagocytosis

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Related to phagocytized: induced phagocytosis, phagocytosing

phagocytosis

 [fag″o-si-to´sis]
the engulfing of microorganisms or other cells and foreign particles by phagocytes. adj., adj phagocytot´ic.
Phagocytosis. From Damjanov, 2000.

phag·o·cy·to·sis

(fag'ō-sī-tō'sis),
The process of ingestion and digestion by cells of solid substances, for example, other cells, bacteria, bits of necrotic tissue, foreign particles.
See also: endocytosis.
[phagocyte + G. -osis, condition]

phagocytosis

/phago·cy·to·sis/ (-si-to´sis) the engulfing of microorganisms or other cells and foreign particles by phagocytes.phagocytot´ic
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Phagocytosis.

phagocytosis

(făg′ə-sī-tō′sĭs)
n.
The engulfing and ingestion of foreign bodies such as bacteria or other cells by phagocytes or certain protists, such as amoebas.

phag′o·cy·tot′ic (-tŏt′ĭk) adj.

phagocytosis

[fag′əsītō′sis]
Etymology: Gk, phagein + kytos + osis, condition
the process by which certain cells engulf and destroy microorganisms and cellular debris. The process includes five steps: (1) invagination, (2) engulfment, (3) internalization and formation of the phagocyte vacuole, (4) fusing of lysosomes to digest the phagocytosed material, and (5) release of digested microbial products. phagocytize, v.
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Phagocytosis

phag·o·cy·to·sis

(fāg'ō-sī-tō'sis)
The process of ingestion and digestion by cells of solid substances, e.g., other cells, bacteria, bits of necrotic tissue, foreign particles.
See also: endocytosis
[phagocyte + G. -osis, condition]

phagocytosis

(fag?o-si-to'sis) [? + ? + osis, condition]
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PHAGOCYTOSIS
A three-stage process by which phagocytes (neutrophils, monocytes, and macrophages) engulf and destroy microorganisms, other foreign antigens, and cell debris. Generally, these substances must be covered with opsonins, such as antibodies or complement, to initiate binding with cell receptors on the phagocytes, the first stage in phagocytosis. In the second stage, the particle is engulfed and enclosed in a vacuole (phagosome). During the third stage, the phagosome merges with lysosomes whose enzymes destroy the engulfed particle. See: illustration; defensin; lysozyme; macrophage; neutrophil; oxygen radical

Most bacteria are killed during phagocytosis by oxygen radicals, which are formed during the respiratory burst when phagosomes and lysosomes merge. When oxygen radical production is excessive, tissue damage occurs. Lysozymes, defensins, and bacteriocidal permeability-increasing (BPI) protein also destroy bacteria and other organisms; their actions do not depend on the generation of oxygen radicals.

induced phagocytosis

Phagocytosis that is stimulated by the presence of opsonins such as antibodies.

spontaneous phagocytosis

Phagocytosis that occurs in the absence of opsonins.

phagocytosis

The envelopment and destruction of bacteria or other foreign bodies by PHAGOCYTES.

phagocytosis

the ingestion of materials (subcellular particles, cells) from the outside of a cell into its interior, forming a cytoplasmic vacuole.

Phagocytosis

A process by which a white blood cell envelopes and digests debris and microorganisms to remove them from the blood.

phagocytosis 

The process of ingestion of solid substances (e.g. cells, bacteria, parts of necrosed tissue) by cells and transported to a site within the cell where it is broken down by lysosomal enzymes.

phag·o·cy·to·sis

(fāg'ō-sī-tō'sis)
Process of ingestion and digestion by cells of solid substances.
[phagocyte + G. -osis, condition]

phagocytosis

the engulfing of microorganisms or other cells and foreign particles by phagocytes.
Enlarge picture
Phagocytosis. By permission from Roitt I, Brostoff J, Male D, Immunology, Mosby, 2001
References in periodicals archive ?
Also, some of the cytolyzed gametes may have been phagocytized providing more energy for osmoregulation.
In general, antibodies neutralize toxins and viruses, immobilize micro-organisms and agglutinate or clump micro-organisms by forming immune complexes with antigens, which activate, complement and are phagocytized and destroyed by phagocytic cells.
The noncanonical pathway involves caspase-4 and caspase-5 in human cells and caspase-11 in mice and is activated by the identification of cell wall ligands, such as LPS, from phagocytized bacteria [28].
Without this function, our muscle cells would be recognized as diseased or foreign cells and be phagocytized by our own immune reactions.
2007), occurs when aged or damaged erythrocytes are phagocytized and cleared from systemic circulation.
Chains of cocci and a single heterophil containing a phagocytized rod-shaped bacterium were also observed.
28) Some cases with pigments are merely breast carcinomas that have phagocytized melanin from the adjacent skin.
Hematoxylin-stained (basophilic) round spots, the residue from phagocytized ova (Masuda and Dan, 1977; Tominaga and Takashima, 1987), are present in the nutritive phagocytes.
Saline treated protozoans phagocytized a greater number of beads than Tetrahymena exposed to either weathered or new tire crumb leachate.
In turn these parasite infected erythrocytes arc phagocytized by the leukocytes, thus subsequently eliminated.
Yeasts were abundant in a blood film; they were being phagocytized (Figure 1).
Since methicillin sensitive isolates were more phagocytized and more sensitive to killing by neutrophils and monocytes than MRSA, we suggested that this situation may be other possible reason for the differences in the stimulation of the lymphocytes by MSSA and MRSA (20).