Visceral adipose tissue immune homeostasis Is regulated by the crosstalk between adipocytes and dendritic cell subsets
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Published version
Author(s)
Type
Journal Article
Abstract
Visceral adipose tissue (VAT) has multiple roles in orchestrating whole-body energy homeostasis. In addition, VAT is now considered an immune site harboring an array of innate and adaptive immune cells with a direct role in immune surveillance and host defense. We report that conventional dendritic cells (cDCs) in VAT acquire a tolerogenic phenotype through upregulation of pathways involved in adipocyte differentiation. While activation of the Wnt/β-catenin pathway in cDC1 DCs induces IL-10 production, upregulation of the PPARγ pathway in cDC2 DCs directly suppresses their activation. Combined, they promote an anti-inflammatory milieu in vivo delaying the onset of obesity-induced chronic inflammation and insulin resistance. Under long-term over-nutrition, changes in adipocyte biology curtail β-catenin and PPARγ activation, contributing to VAT inflammation.
Date Issued
2018-03-06
Date Acceptance
2018-02-02
Citation
Cell Metabolism, 2018, 27 (3), pp.588-601.e4
ISSN
1550-4131
Publisher
Elsevier (Cell Press)
Start Page
588
End Page
601.e4
Journal / Book Title
Cell Metabolism
Volume
27
Issue
3
Copyright Statement
© 2018 The Author(s). Published by Elsevier Inc. This is an open access article under the CC BY license (http://creativecommons.org/licenses/by/4.0/).
Subjects
Science & Technology
Life Sciences & Biomedicine
Cell Biology
Endocrinology & Metabolism
ACTIVATED-RECEPTOR-GAMMA
T-REG CELLS
PPAR-GAMMA
BETA-CATENIN
INSULIN-RESISTANCE
STEADY-STATE
INFLAMMATION
OBESITY
MICE
ADIPOGENESIS
Publication Status
Published
Date Publish Online
2018-03-06