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Review
. 2018 Aug;96(8):741-751.
doi: 10.1007/s00109-018-1660-7. Epub 2018 Jul 12.

Epigenetic regulation of Toll-like receptors and its roles in type 1 diabetes

Zhiguo Xie  1   2 , Gan Huang  1   2 , Zhen Wang  1   2 , Shuoming Luo  1   2 , Peilin Zheng  1   2 , Zhiguang Zhou  3   4
Affiliations
Review

Epigenetic regulation of Toll-like receptors and its roles in type 1 diabetes

Zhiguo Xie et al. J Mol Med (Berl). 2018 Aug.

Abstract

The immune system can be divided into adaptive immunity and innate immunity. Adaptive immunity has been confirmed to be involved in the pathogenesis of autoimmune diseases, including type 1 diabetes (T1D). However, the role of innate immunity in T1D has only been studied recently. T1D is caused by selective autoimmune destruction of pancreatic islet β cells. A series of studies have suggested that TLRs play a critical role in the pathogenesis of T1D. Aberrant TLR signaling will change immune homeostasis and result in immunopathological conditions such as endotoxin shock and autoimmune responses. Thus, TLR signaling pathways are supposed to be strictly and finely regulated. Epigenetics has recently been proven to be a new regulator of TLR expression. DNA methylation, histone modification, and microRNAs are the three main epigenetic modifications. This review will mainly focus on these epigenetic mechanisms of regulation of TLRs and the role of TLRs in the pathogenesis of T1D.

Keywords: DNA methylation; Epigenetics; MicroRNA; Toll-like receptor; Type 1 diabetes.

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