Exocytosis (dermatopathology)
Exocytosis (dermatopathology)
Exocytosis (/ˌɛksəʊsaɪˈtəʊsɪs/) is a process in dermatopathology where cells transport molecules (such as proteins) out of the cell by expelling them in an energy-using process.
Etymology
The term "exocytosis" comes from the Greek words "exo", meaning "out", and "cytosis", meaning "cell".
Process
During exocytosis, the molecules to be transported are packaged into vesicles, which are small, spherical packages. The vesicle moves to the cell's membrane and merges with it, releasing the molecules outside the cell. This process is used to expel waste materials, secrete substances, and communicate with other cells.
Role in Dermatopathology
In dermatopathology, exocytosis plays a crucial role in the transportation of molecules that are involved in skin health and disease. For example, it is involved in the secretion of sweat, sebum, and other substances from skin cells. It is also involved in the immune response of the skin, as immune cells use exocytosis to release signaling molecules that attract other immune cells to the site of an infection or injury.
Related Terms
- Endocytosis: The process by which cells take in molecules by engulfing them.
- Vesicle (biology and chemistry): A small structure within a cell, consisting of fluid enclosed by a lipid bilayer.
- Dermatopathology: The study of cutaneous diseases at a microscopic and molecular level.
See Also
External links
- Medical encyclopedia article on Exocytosis (dermatopathology)
- Wikipedia's article - Exocytosis (dermatopathology)
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