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Tuft cells.
1Department of Morphological Biology, Fukuoka Dental College, 2-15-1 Tamura, Sawara-ku, Fukuoka 814-0193. sato@college.fdcnet.ac.jp
Anatomical Science International
|December 8, 2007
Summary
Tuft cells, characterized by unique microvilli, are found throughout the digestive and respiratory tracts. Their newly identified alpha-gustducin suggests a chemoreception function, though secretory and absorptive roles are also explored.
Area of Science:
- Cell Biology
- Gastroenterology
- Histology
Background:
- Tuft cells (brush cells) are present in digestive and respiratory tracts across species.
- Morphologically, they feature prominent microvilli and a tubulovesicular system.
- Their functions have remained largely unknown despite extensive study.
Purpose of the Study:
- To review the proposed functions of tuft cells.
- To discuss evidence for secretory, absorptive, and receptive roles.
- To highlight the significance of alpha-gustducin discovery.
Main Methods:
- Morphological analysis of tuft cells.
- Histochemical and cytochemical staining techniques.
- Review of existing literature on tuft cell function.
Main Results:
- Tuft cells exhibit distinct microvilli and an associated tubulovesicular system.
- Evidence suggests potential apocrine secretion.
- Presence of alpha-gustducin points towards chemosensory capabilities.
Conclusions:
- Tuft cells possess characteristics supporting secretory, absorptive, and receptive functions.
- Alpha-gustducin indicates a chemoreception role.
- Further research is needed to fully elucidate tuft cell functions.
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