期刊
INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES
卷 21, 期 4, 页码 -出版社
MDPI
DOI: 10.3390/ijms21041297
关键词
BET proteins; cell proliferation; cholesterol; epigenetics; HMGCR; JQ1; LDLr; lipid metabolism; SREBP; TMEM97
资金
- PRIN-MIUR [2015SHM58M_004]
- Departments of Excellence, 2017 [legge 232/2016, comma 314-337]
The homeostatic control of lipid metabolism is essential for many fundamental physiological processes. A deep understanding of its regulatory mechanisms is pivotal to unravel prospective physiopathological factors and to identify novel molecular targets that could be employed to design promising therapies in the management of lipid disorders. Here, we investigated the role of bromodomain and extraterminal domain (BET) proteins in the regulation of lipid metabolism. To reach this aim, we used a loss-of-function approach by treating HepG2 cells with JQ1, a powerful and selective BET inhibitor. The main results demonstrated that BET inhibition by JQ1 efficiently decreases intracellular lipid content, determining a significant modulation of proteins involved in lipid biosynthesis, uptake and intracellular trafficking. Importantly, the capability of BET inhibition to slow down cell proliferation is dependent on the modulation of cholesterol metabolism. Taken together, these data highlight a novel epigenetic mechanism involved in the regulation of lipid homeostasis.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据