micropinocytosis


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micropinocytosis

[¦mī·krō‚pin·ə·sī′tō·səs]
(cell and molecular biology)
A mechanism of endocytosis in which fluid droplets are internalized by indentations (caveolae) on the surface membrane which pinch off as tiny internal vesicles (micropinosomes).
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However, some reports showed that HIV-1 crosses brain endothelia by micropinocytosis dependent on lipid rafts and mitogen activated protein kinase (MAP-Kinase) pathway (37).