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J Clin Invest. 2017 Jan 3;127(1):5-13. doi: 10.1172/JCI88876. Epub 2017 Jan 3.

Role of innate and adaptive immunity in obesity-associated metabolic disease.

Abstract

Chronic inflammation in adipose tissue, possibly related to adipose cell hypertrophy, hypoxia, and/or intestinal leakage of bacteria and their metabolic products, likely plays a critical role in the development of obesity-associated insulin resistance (IR). Cells of both the innate and adaptive immune system residing in adipose tissues, as well as in the intestine, participate in this process. Thus, M1 macrophages, IFN-γ-secreting Th1 cells, CD8+ T cells, and B cells promote IR, in part through secretion of proinflammatory cytokines. Conversely, eosinophils, Th2 T cells, type 2 innate lymphoid cells, and possibly Foxp3+ Tregs protect against IR through local control of inflammation.

PMID:
28045397
PMCID:
PMC5199693
DOI:
10.1172/JCI88876
[Indexed for MEDLINE]
Free PMC Article

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