| Literature DB >> 19914244 |
Zhiyan Huang1, Fang Fang, Junjian Wang, Chi-Wai Wong.
Abstract
In this study, we investigated the structural activity relationships (SARs) of flavonoids with estrogen-related receptor gamma (ERRgamma) and its coactivator peroxisome proliferators-activated receptor gamma coactivator-1alpha (PGC-1alpha). Isoflavones (genistein and daidzein) and flavanones (naringenin and hesperetin) did not significantly affect ERRgamma activity. Flavone apigenin and flavonol kaempferol directly suppressed the interaction between ERRgamma and PGC-1alpha functioning as inverse agonists. In contrast, flavone luteolin suppressed PGC-1alpha activity in part through promoting the degradation of PGC-1alpha leading to suppressed ERRgamma activity. Therefore, these flavones and flavonols utilize alternative mechanisms to influence the transcriptional activities of ERRgamma and PGC-1alpha.Entities:
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Year: 2010 PMID: 19914244 DOI: 10.1016/j.febslet.2009.11.026
Source DB: PubMed Journal: FEBS Lett ISSN: 0014-5793 Impact factor: 4.124