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HERO ID
7377209
Reference Type
Journal Article
Title
The RNA-binding protein HuR is a negative regulator in adipogenesis
Author(s)
Siang, D; Lim, Y; Kyaw, AMM; Win, K; Chia, SY; Degirmenci, U; Hu, X; Tan, BC; Walet, ACE; Sun, Lei; Xu, Dan
Year
2020
Is Peer Reviewed?
1
Journal
Nature Communications
EISSN:
2041-1723
Volume
11
Issue
1
Page Numbers
213
Language
English
PMID
31924774
DOI
10.1038/s41467-019-14001-8
Web of Science Id
WOS:000551460500003
URL
http://www.nature.com/articles/s41467-019-14001-8
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Abstract
Human antigen R (HuR) is an essential regulator of RNA metabolism, but its function in metabolism remains unclear. This study identifies HuR as a major repressor during adipogenesis. Knockdown and overexpression of HuR in primary adipocyte culture enhances and inhibits adipogenesis in vitro, respectively. Fat-specific knockout of HuR significantly enhances adipogenic gene program in adipose tissues, accompanied by a systemic glucose intolerance and insulin resistance. HuR knockout also results in depot-specific phenotypes: it can repress myogenesis program in brown fat, enhance inflammation program in epidydimal white fat and induce browning program in inguinal white fat. Mechanistically, HuR may inhibit adipogenesis by recognizing and modulating the stability of hundreds of adipocyte transcripts including Insig1, a negative regulator during adipogenesis. Taken together, our work establishes HuR as an important posttranscriptional regulator of adipogenesis and provides insights into how RNA processing contributes to adipocyte development.
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