transcytosis

(redirected from cytopempsis)
Also found in: Encyclopedia.

trans·cy·to·sis

(tranz'sī-tō'sis),
A mechanism for transcellular transport in which a cell encloses extracellular material in an invagination of the cell membrane to form a vesicle (endocytosis), then moves the vesicle across the cell to eject the material through the opposite cell membrane by the reverse process (exocytosis). The transport mechanism by which most proteins reach the Golgi apparatus or the plasma membrane; the vesicles targeted toward lysosomes and secretory storage granules appear to be coated with clathrin.

transcytosis

A type of caveolae-mediated vesicular trafficking, in which caveolae transport proteins from the luminal side of an endothelial cell to the interstitial compartment for subsequent uptake by surrounding tissue.

trans·cy·to·sis

(tranz-sī-tō'sis)
A mechanism for transcellular transport in which a cell encloses extracellular material in an invagination of the cell membrane to form a vesicle (endocytosis), then moves the vesicle across the cell to eject the material through the opposite cell membrane by the reverse process (exocytosis).
Synonym(s): vesicular transport.

transcytosis

(trănz-sī-tō′sĭs)
The ferrying of a substance across a cell membrane in coated vesicles.