Transcellular
Transcellular transport is the process by which substances are moved through a cell via a vesicle. This process is used to move substances within a cell and across a barrier, such as the epithelium. Transcellular transport is an important part of many biological processes, including absorption, secretion, and transcytosis.
Mechanism[edit | edit source]
Transcellular transport involves the movement of substances through the interior of a cell. This is in contrast to paracellular transport, which involves the movement of substances between cells. In transcellular transport, a substance is engulfed by the cell membrane in a process known as endocytosis. The substance is then transported across the cell in a vesicle, which is a small, membrane-bound compartment. The vesicle fuses with the opposite side of the cell membrane, releasing the substance in a process known as exocytosis.
Role in Absorption and Secretion[edit | edit source]
Transcellular transport plays a key role in the absorption and secretion of substances in the body. For example, in the intestine, nutrients are absorbed from the lumen into the bloodstream via transcellular transport. Similarly, in the kidney, waste products are secreted from the bloodstream into the urine via transcellular transport.
Role in Transcytosis[edit | edit source]
Transcytosis is a specialized form of transcellular transport that involves the movement of macromolecules from one side of a cell to the other. This process is important in many biological processes, including the transport of immunoglobulins across the placenta, the transport of insulin across the blood-brain barrier, and the transport of LDL particles into cells.
See Also[edit | edit source]
| Transcellular Resources | |
|---|---|
|
 |
Search WikiMD
Ad.Tired of being Overweight? Try W8MD's physician weight loss program.
Semaglutide (Ozempic / Wegovy and Tirzepatide (Mounjaro / Zepbound) available.
Advertise on WikiMD
|
WikiMD's Wellness Encyclopedia |
| Let Food Be Thy Medicine Medicine Thy Food - Hippocrates |
Translate this page: - East Asian
中文,
日本,
한국어,
South Asian
हिन्दी,
தமிழ்,
తెలుగు,
Urdu,
ಕನ್ನಡ,
Southeast Asian
Indonesian,
Vietnamese,
Thai,
မြန်မာဘာသာ,
বাংলা
European
español,
Deutsch,
français,
Greek,
português do Brasil,
polski,
română,
русский,
Nederlands,
norsk,
svenska,
suomi,
Italian
Middle Eastern & African
عربى,
Turkish,
Persian,
Hebrew,
Afrikaans,
isiZulu,
Kiswahili,
Other
Bulgarian,
Hungarian,
Czech,
Swedish,
മലയാളം,
मराठी,
ਪੰਜਾਬੀ,
ગુજરાતી,
Portuguese,
Ukrainian
Medical Disclaimer: WikiMD is not a substitute for professional medical advice. The information on WikiMD is provided as an information resource only, may be incorrect, outdated or misleading, and is not to be used or relied on for any diagnostic or treatment purposes. Please consult your health care provider before making any healthcare decisions or for guidance about a specific medical condition. WikiMD expressly disclaims responsibility, and shall have no liability, for any damages, loss, injury, or liability whatsoever suffered as a result of your reliance on the information contained in this site. By visiting this site you agree to the foregoing terms and conditions, which may from time to time be changed or supplemented by WikiMD. If you do not agree to the foregoing terms and conditions, you should not enter or use this site. See full disclaimer.
Credits:Most images are courtesy of Wikimedia commons, and templates Wikipedia, licensed under CC BY SA or similar.
Contributors: Prab R. Tumpati, MD
