endocytosis

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endocytosis

 [en″do-si-to´sis]
the uptake by a cell of material from the environment by invagination of the plasma membrane; it includes both phagocytosis and pinocytosis.
Endocytosis. Shown are pinocytosis of small fluid droplets (left) and phagocytosis of a large particle (right). From Dorland's, 2000.

en·do·cy·to·sis

(en'dō-sī-tō'sis),
Internalization of substances from the extracellular environment through the formation of vesicles formed from the plasma membrane. There are two forms: (a) fluid phase (pinocytosis), and (b) receptor mediated.
See also: phagocytosis. Compare: exocytosis (2).
[endo- + G. kytos, cell, + -osis, condition]

endocytosis

(ĕn′dō-sī-tō′sĭs)
n.
A process of cellular ingestion by which the plasma membrane folds inward to bring substances into the cell.

en′do·cyt′ic (-sĭt′ĭk), en′do·cy·tot′ic (-sī-tŏt′ĭk) adj.
en′do·cy·tose′ (-tōs′) v.

en·do·cy·to·sis

(en'dō-sī-tō'sis)
Internalization of substances from the extracellular environment through the formation of vesicles formed from the plasma membrane.
See also: phagocytosis
Compare: exocytosis (2)
[endo- + G. kytos, cell, + -osis, condition]

endocytosis

A method by which a large molecule, such as a protein, can enter a cell. The plasma membrane of the cell is invaginated by the molecule so that an internal vesicle is formed containing the molecule. This then breaks off from the surface membrane and moves into the interior of the cell. Such vesicles are coated with a protein called clathrin.

endocytosis

an active process by which some cells can enclose a smaller body (e.g. a food particle) forming a membrane-bound vesicle. Compare EXOCYTOSIS. See PHAGOCYTOSIS, PINOCYTOSIS.
References in periodicals archive ?
Because 1 [micro]M RAP fully, but selectively, inhibits binding of DBP to megalin and the megalin-dependent co-receptor cubilin (Niemeier et al., 1999; Rowling et al., 2006), other non-receptor mediated endocytotic processes, as well as passive diffusion across the PTEC apical membranes, may account for the residual uptake of 25O[HD.sub.3] into the PTECs observed during RAP co-administration.
(2016) Distinct modes of endocytotic presynaptic membrane and protein uptake at the calyx of Held terminal of rats and mice.
An improved understanding of cholesterol and sugar homeostasis has tremendous potential for improving general public health, and furthermore this proposal will help to uncover general principles of endocytotic uptake and facilitated diffusion systems at the molecular level.
Dringen, Endocytotic uptake of iron oxide nanoparticles by cultured brain microglial cells, Acta Biomater, 9(9): 8454-65 (2013).
Fiorucci et al., "HIV-1 Nef induces the release of inflammatory factors from human monocyte/macrophages: involvement of Nef endocytotic signals and NF-[kappa]B activation," Journal of Immunology, vol.
Syono, "Two ineffective-nodulating mutants of Lotus japonicus--different phenotypes caused by the blockage of endocytotic bacterial release and nodule maturation," Plant & Cell Physiology, vol.
In polarised epithelial cells, for example, Myo6(-LI) has been shown to associate with uncoated endocytotic vesicles via GIPC1, while Myo6(+LI) is recruited to clathrin coated pits/vesicles via Dab2 [6].
A report by Perez-Otano et al., [24] in 2006 was the first to highlight the activity dependent interaction of PACSIN1/syndapin, an endocytotic adaptor protein, with GluN3A [24].
That the character of cargo predetermines the endocytotic uptake and the influence on signal transduction [44] might explain the differences in the influence on MAPK phosphorylation.
Such changes point to a toxic effect of VCR on these cell types, suggesting impairment of epididymal function, particularly concerning to sperm maturation and endocytotic removal of the contents of the cytoplasmic droplets and dead sperm.
In addition, the nucleus of the ciliated cell is frequently displaced in apical cytoplasm (Figure 3D), and reduced frequencies of endocytotic vesicles and lysosomal granules are found in the ciliated cell (Figure 3E).
The complexes are taken up by directly penetrating the cell membrane or by an endocytotic pathway.