Title : Resveratrol and its metabolites bind to PPARs.

Pub. Date : 2014 May 26

PMID : 24796862






11 Functional Relationships(s)
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1 Resveratrol, a modulator of several signaling proteins, can exert off-target effects involving the peroxisome proliferator-activated receptor (PPAR) transcription factors. Resveratrol peroxisome proliferator activated receptor alpha Homo sapiens
2 Resveratrol, a modulator of several signaling proteins, can exert off-target effects involving the peroxisome proliferator-activated receptor (PPAR) transcription factors. Resveratrol peroxisome proliferator activated receptor alpha Homo sapiens
3 Here, we addressed the hypothesis that resveratrol and its metabolites control aspects of PPAR transcriptional activity through direct interaction with PPARs. Resveratrol peroxisome proliferator activated receptor alpha Homo sapiens
4 Bioaffinity chromatographic studies with the immobilized ligand-binding domains (LBDs) of PPARgamma and PPARalpha and isothermal titration calorimetry allowed the binding affinities of resveratrol, resveratrol 3-O-glucuronide, resveratrol 4-O-glucuronide, and resveratrol 3-O-sulfate to both PPAR-LBDs to be determined. Resveratrol peroxisome proliferator activated receptor alpha Homo sapiens
5 Bioaffinity chromatographic studies with the immobilized ligand-binding domains (LBDs) of PPARgamma and PPARalpha and isothermal titration calorimetry allowed the binding affinities of resveratrol, resveratrol 3-O-glucuronide, resveratrol 4-O-glucuronide, and resveratrol 3-O-sulfate to both PPAR-LBDs to be determined. Resveratrol peroxisome proliferator activated receptor alpha Homo sapiens
6 Interaction of resveratrol, resveratrol 3-O-glucuronide, and resveratrol 4-O-glucuronide with PPARgamma-LBD occurred with binding affinities of 1.4, 1.1, and 0.8 muM, respectively, although only resveratrol bound to the PPARalpha-LBD with a binding affinity of 2.7 muM. Resveratrol peroxisome proliferator activated receptor alpha Homo sapiens
7 Interaction of resveratrol, resveratrol 3-O-glucuronide, and resveratrol 4-O-glucuronide with PPARgamma-LBD occurred with binding affinities of 1.4, 1.1, and 0.8 muM, respectively, although only resveratrol bound to the PPARalpha-LBD with a binding affinity of 2.7 muM. Resveratrol peroxisome proliferator activated receptor alpha Homo sapiens
8 Interaction of resveratrol, resveratrol 3-O-glucuronide, and resveratrol 4-O-glucuronide with PPARgamma-LBD occurred with binding affinities of 1.4, 1.1, and 0.8 muM, respectively, although only resveratrol bound to the PPARalpha-LBD with a binding affinity of 2.7 muM. Resveratrol peroxisome proliferator activated receptor alpha Homo sapiens
9 Transactivation assays were also performed in HepG2 cells, with the results showing that resveratrol was not a PPAR agonist but instead was able to displace rosiglitazone from PPARgamma and Wy-14643 from PPARalpha with IC50 values of (27.4+-1.8) muM and (31.7+-2.5) muM, respectively. Resveratrol peroxisome proliferator activated receptor alpha Homo sapiens
10 We propose that resveratrol acts as a PPAR antagonist through its direct interaction with PPARgamma and PPARalpha. Resveratrol peroxisome proliferator activated receptor alpha Homo sapiens
11 We propose that resveratrol acts as a PPAR antagonist through its direct interaction with PPARgamma and PPARalpha. Resveratrol peroxisome proliferator activated receptor alpha Homo sapiens