The Ubiquitin Ligase SIAH2 Negatively Regulates Glucocorticoid Receptor Activity and Abundance.
The Ubiquitin Ligase SIAH2 Negatively Regulates Glucocorticoid Receptor Activity and Abundance.
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DOI:
10.3390/biomedicines9010022
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发表时间:
2020-12-30
期刊:
影响因子:
4.7
通讯作者:
Collier JJ
中科院分区:
文献类型:
--
作者:
Burke SJ;Taylor JL;Batdorf HM;Noland RC;Burk DH;Yu Y;Floyd ZE;Collier JJ
Glucocorticoids are clinically essential drugs used routinely to control inflammation. However, a host of metabolic side effects manifests upon usage beyond a few days. In the present study, we tested the hypothesis that seven-in-absentia mammalian homolog-2 (SIAH2), a ubiquitin ligase that regulates adipogenesis, is important for controlling adipocyte size, inflammation, and the ability of adipose tissue to expand in response to a glucocorticoid challenge. Using mice with global deletion of SIAH2 exposed or not to corticosterone, we found that adipocytes are larger in response to glucocorticoids in the absence of SIAH2. In addition, SIAH2 regulates glucocorticoid receptor (GR) transcriptional activity and total GR protein abundance. Moreover, these studies reveal that there is an increased expression of genes involved in fibrosis and inflammatory signaling pathways found in white adipose tissue in response to glucocorticoids in the absence of SIAH2. In summary, this is the first study to identify a role for SIAH2 to regulate transcriptional activity and abundance of the GR, which leads to alterations in adipose tissue size and gene expression during in vivo exposure to glucocorticoids.
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影响因子:
15.9
作者:
KNITTLE, JL;TIMMERS, K;KATZ, DP
通讯作者:
KATZ, DP
影响因子:
5.3
作者:
Frew, IJ;Dickins, RA;Bowtell, DDL
通讯作者:
Bowtell, DDL
DOI:
10.1002/oby.21220
发表时间:
2015-11
期刊:
Obesity (Silver Spring, Md.)
影响因子:
--
作者:
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通讯作者:
Floyd ZE
影响因子:
13.8
作者:
Kadmiel M;Cidlowski JA
通讯作者:
Cidlowski JA
影响因子:
6
作者:
Burke, Susan J.;Batdorf, Heidi M.;Collier, J. Jason
通讯作者:
Collier, J. Jason