Two regulatory T cell populations in the visceral adipose tissue shape systemic metabolism
Details
Publication Year 2024-02-14,Volume 25,Issue #3,Page 496-511
Journal Title
Nature Immunology
Abstract
Visceral adipose tissue (VAT) is an energy store and endocrine organ critical for metabolic homeostasis. Regulatory T (T(reg)) cells restrain inflammation to preserve VAT homeostasis and glucose tolerance. Here, we show that the VAT harbors two distinct T(reg) cell populations: prototypical serum stimulation 2-positive (ST2(+)) T(reg) cells that are enriched in males and a previously uncharacterized population of C-X-C motif chemokine receptor 3-positive (CXCR3(+)) T(reg) cells that are enriched in females. We show that the transcription factors GATA-binding protein 3 and peroxisome proliferator-activated receptor-γ, together with the cytokine interleukin-33, promote the differentiation of ST2(+) VAT T(reg) cells but repress CXCR3(+) T(reg) cells. Conversely, the differentiation of CXCR3(+) T(reg) cells is mediated by the cytokine interferon-γ and the transcription factor T-bet, which also antagonize ST2(+) T(reg) cells. Finally, we demonstrate that ST2(+) T(reg) cells preserve glucose homeostasis, whereas CXCR3(+) T(reg) cells restrain inflammation in lean VAT and prevent glucose intolerance under high-fat diet conditions. Overall, this study defines two molecularly and developmentally distinct VAT T(reg) cell types with unique context- and sex-specific functions.
Publisher
NPG
Keywords
Female; Male; Humans; *T-Lymphocytes, Regulatory; *Interleukin-1 Receptor-Like 1 Protein; Intra-Abdominal Fat; Cytokines; Inflammation; Glucose
Research Division(s)
Immunology
PubMed ID
38356058
Terms of Use/Rights Notice
Refer to copyright notice on published article.


Creation Date: 2024-02-29 09:16:19
Last Modified: 2024-03-11 09:39:16
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