The Journal of Experimental Medicine
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Published online
doi:10.1084/jem.20072594
The Journal of Experimental Medicine, Vol. 205, No. 7, 1559-1565
The Rockefeller University Press, 0022-1007 $30.00
© Dudda et al.
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BRIEF DEFINITIVE REPORT

 Foxp3+ regulatory T cells maintain immune homeostasis in the skin

Jan C. Dudda1,2, Nikole Perdue1, Eva Bachtanian1, and Daniel J. Campbell1,2

1 Benaroya Research Institute, Seattle, WA 98101
2 Department of Immunology, University of Washington School of Medicine, Seattle, WA 98195

CORRESPONDENCE Daniel J. Campbell: campbell{at}benaroyaresearch.org

Cutaneous immune responses must be tightly controlled to prevent unwanted inflammation in response to innocuous antigens, while maintaining the ability to combat skin-tropic pathogens. Foxp3+ regulatory T (T reg) cells are potent immune regulators and are found at high frequency in both human and mouse skin. Although T reg cells migrate to the skin and can dampen immune responses during experimentally induced inflammation or infection, the importance of cutaneous T reg cells for maintaining normal immune homeostasis in the skin has not been addressed. To selectively block T reg cell function in the skin, we restored the T reg cell compartment in Foxp3-deficient scurfy mice with cells whose ability to migrate to the skin was impaired because of targeted mutation of {alpha}-1,3-fucosyltransferase VII (Fut7). Although Fut7-deficient T reg cells were present at normal frequency and could function in all other tissues examined, these animals rapidly developed severe cutaneous inflammation. Thus, skin-resident T reg cell are essential for maintaining normal immune homeostasis at this site.

© 2008 Dudda et al. This article is distributed under the terms of an Attribution–Noncommercial–Share Alike–No Mirror Sites license for the first six months after the publication date (see http://www.jem.org/misc/terms.shtml). After six months it is available under a Creative Commons License (Attribution–Noncommercial–Share Alike 3.0 Unported license, as described at http://creativecommons.org/licenses/by-nc-sa/3.0/).


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