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Immunol Rev. 2007 Feb;215:114-22.

Skin gammadelta T-cell functions in homeostasis and wound healing.

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Department of Immunology, The Scripps Research Institute, La Jolla, CA 92037, USA.


There is a resident population of T cells found in murine skin that expresses an invariant Vgamma3Vdelta1 T-cell receptor (TCR), and these cells are significantly different from lymphoid gammadelta T cells and alphabeta T cells in terms of ontogeny, tissue tropism, and antigen receptor diversity. These dendritic epidermal T cells are derived from fetal thymic precursor cells, are in constant contact with neighboring epidermal cells, and express a monoclonal gammadeltaTCR only found in the skin. Skin gammadelta T cells have been shown to play unique roles in tissue homeostasis and during tissue repair through local secretion of distinct growth factors including keratinocyte growth factors and insulin-like growth factor-1. In this review, we discuss evidence supporting a role for cross talk between skin gammadelta T cells and keratinocytes that contributes to the maintenance of normal skin and wound healing.

[Indexed for MEDLINE]

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