transcytosis

(noun)

The process whereby macromolecules are transported across the interior of a cell via vesicles.

Examples of transcytosis in the following topics:

  • Transcytosis

    • Transcytosis is a process by which molecules are transported into the capillaries.
    • Transcytosis, or vesicle transport, is one of three mechanisms that facilitate capillary exchange, along with diffusion and bulk flow.
    • Due to the function of transcytosis, it can be a convenient mechanism by which pathogens can invade a tissue.
    • Listeria monocytogenes has been shown to enter the intestinal lumen via transcytosis across goblet cells.
    • These examples illustrate that transcytosis is vital to the process of pathogenesis for a variety of infectious agents.
  • Bulk Flow: Filtration and Reabsorption

    • Capillary fluid movement occurs as a result of diffusion (colloid osmotic pressure), transcytosis, and filtration.
    • Bulk flow is one of three mechanisms that facilitate capillary exchange, along with diffusion and transcytosis.
  • Capillary Dynamics

    • There are three mechanisms that facilitate capillary exchange: diffusion, transcytosis, and bulk flow.
    • Transcytosis is the mechanism whereby large, lipid-insoluble substances cross the capillary membranes.
  • Endocytosis

    • Potocytosis is used to bring small molecules into the cell and to transport these molecules through the cell for their release on the other side of the cell, a process called transcytosis.
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