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γδ T Cells Producing Interleukin-17A Regulate Adipose Regulatory T Cell Homeostasis and Thermogenesis

Abstract

γδ T cells are situated at barrier sites and guard the body from infection and damage. However, little is known about their roles outside of host defense in nonbarrier tissues. Here, we characterize a highly enriched tissue-resident population of γδ T cells in adipose tissue that regulate age-dependent regulatory T cell (T) expansion and control core body temperature in response to environmental fluctuations. Mechanistically, innate PLZF γδ T cells produced tumor necrosis factor and interleukin (IL) 17 A and determined PDGFRα and Pdpn stromal-cell production of IL-33 in adipose tissue. Mice lacking γδ T cells or IL-17A exhibited decreases in both ST2 T cells and IL-33 abundance in visceral adipose tissue. Remarkably, these mice also lacked the ability to regulate core body temperature at thermoneutrality and after cold challenge. Together, these findings uncover important physiological roles for resident γδ T cells in adipose tissue immune homeostasis and body-temperature control.

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References
1.
Zeyda M, Wernly B, Demyanets S, Kaun C, Hammerle M, Hantusch B . Severe obesity increases adipose tissue expression of interleukin-33 and its receptor ST2, both predominantly detectable in endothelial cells of human adipose tissue. Int J Obes (Lond). 2012; 37(5):658-65. DOI: 10.1038/ijo.2012.118. View

2.
Van Dyken S, Mohapatra A, Nussbaum J, Molofsky A, Thornton E, Ziegler S . Chitin activates parallel immune modules that direct distinct inflammatory responses via innate lymphoid type 2 and γδ T cells. Immunity. 2014; 40(3):414-24. PMC: 4019510. DOI: 10.1016/j.immuni.2014.02.003. View

3.
Cipolletta D, Feuerer M, Li A, Kamei N, Lee J, Shoelson S . PPAR-γ is a major driver of the accumulation and phenotype of adipose tissue Treg cells. Nature. 2012; 486(7404):549-53. PMC: 3387339. DOI: 10.1038/nature11132. View

4.
Kuswanto W, Burzyn D, Panduro M, Wang K, Jang Y, Wagers A . Poor Repair of Skeletal Muscle in Aging Mice Reflects a Defect in Local, Interleukin-33-Dependent Accumulation of Regulatory T Cells. Immunity. 2016; 44(2):355-67. PMC: 4764071. DOI: 10.1016/j.immuni.2016.01.009. View

5.
Wood I, Wang B, Trayhurn P . IL-33, a recently identified interleukin-1 gene family member, is expressed in human adipocytes. Biochem Biophys Res Commun. 2009; 384(1):105-9. DOI: 10.1016/j.bbrc.2009.04.081. View