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

/en·do·cy·to·sis/ (-si-to´sis) the uptake by a cell of material from the environment by invagination of its plasma membrane; it includes both phagocytosis and pinocytosis.

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.

endocytosis

[en′dōsītō′sis]
Etymology: Gk, endon, within, + kytos, cell
uptake by a cell of material from the environment by invagination of its plasma membrane, which may be either phagocytosis or pinocytosis. Compare exocytosis.
enlarge picture
Endocytosis

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.

endocytosis

the uptake by a cell of material from the environment by invagination of the plasma membrane; it includes both phagocytosis and pinocytosis.

receptor mediated endocytosis
uptake of materials bound to specific cell-surface receptors by invagination of the plasma membrane to form a small membrane-bounded vesicle; a mechanism for entry of viruses into cells.
References in periodicals archive ?
17] In our study, increased Beclin1-UVRAG co-localization was observed in the cortex of AD mouse model, implying aberrant activation of Rab7, with subsequently increased endocytosis and greater induction of autophagy.
adhaerens must occur primarily by direct endocytosis at the surfaces of ventral epithelial cells.
However, in case of receptor-mediated endocytosis, polymeric micelles get entrapped into the endosomal/lysosomal vesicles.
Endocytosis of G protein-coupled receptors: roles of G protein-coupled receptor kinases and beta-arrestin proteins.
Although the dependence of vesicle endocytosis upon [Ca.
tion TAs are the most commonly used method to enhance the endocytosis of iron oxide particles.
An editorAEs introduction summarizes the history of endocytosis research and milestones in its understanding.
Endocytosis is an energy-using process by which cells absorb molecules (such as proteins) by engulfing them.
Mutations in the CLCN5 gene encoding the electrogenic chloride/proton exchanger CIC-5 participating in the receptor-mediated endocytosis in the proximal tubule are a causative factor for Dent's disease of type 1.
Second is facilitated diffusion, a form of carrier-mediated endocytosis, in which solute molecules bind to specific membrane protein carriers.
Additional genes related to cell migration (PTK2B), lipid transport and endocytosis (SORL1) also were confirmed, and new hypotheses emerged related to hippocampal synaptic function (MEF2C, PTK2B), the cytoskeleton and axonal transport (CELF1, NME8, CASS4), as well as myeloid and microglial cell functions (INPP5D).
A good carrier should compress DNA at micron scale to a nanoparticle so that the particle will be adsorbed by cell membrane through endocytosis.