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Epithelial and mucosal gamma delta T cells.
H Kiyomi Komori1, Terrence F Meehan, Wendy L Havran
1The Scripps Research Institute, 10550 North Torrey Pines Road, La Jolla, CA 92037, USA.
Current Opinion in Immunology
|July 14, 2006
Summary
Gammadelta T cells, though rare in circulation, are key immune defenders at mucosal surfaces. They respond to tissue stress by protecting epithelial barriers and clearing infected cells, aiding tissue repair.
Area of Science:
- Immunology
- Cell Biology
- Tissue Homeostasis
Background:
- Gammadelta T cells are a distinct lymphocyte subset abundant at mucosal and epithelial surfaces.
- These cells play crucial roles in tissue surveillance and immune responses at barrier sites.
Purpose of the Study:
- To elucidate the functions and development of gammadelta T cells in maintaining tissue integrity.
- To understand the roles of gammadelta T cells in response to tissue stress and damage.
Main Methods:
- Review of recent advances in gammadelta T cell research.
- Analysis of gammadelta T cell functions including modulation of epithelial homeostasis, cell lysis, and inflammatory cell recruitment.
Main Results:
- Gammadelta T cells modulate epithelial homeostasis via factors like insulin-like growth factor-1.
- They exhibit cytotoxic functions, such as lysing cytomegalovirus-infected cells.
- These cells are involved in recruiting inflammatory cells to sites of tissue damage.
Conclusions:
- Recent research has advanced the understanding of gammadelta T cell development at mucosal and skin surfaces.
- Gammadelta T cells are critical for restoring and maintaining tissue integrity following stress or damage.