transcytosis
(noun)
The process whereby macromolecules are transported across the interior of a cell via vesicles.
Examples of transcytosis in the following topics:
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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.
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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.
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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.
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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.