GW6471 is an antagonist of PPARα with IC50 of 0.24 μ M. GW6471 enhances the binding affinity of the PPAR α ligand-binding domain to the co-repressor proteins SMRT and NCoR.
A specific PPARα antagonist, GW6471, induced both apoptosis and cell cycle arrest at G0/G1 in VHL(+) and VHL(-) RCC cell lines (786-O and Caki-1) associated with attenuation of the cell cycle regulatory proteins c-Myc, Cyclin D1, and CDK4;?this data was confirmed as specific to PPARα antagonism by siRNA methods.
1. Abu Aboud O, et al. Inhibition of PPARα induces cell cycle arrest and apoptosis, and synergizes with glycolysisinhibition in kidney cancer cells. PLoS One. 2013 Aug 7;8(8):e71115.
2. Xu HE, et al. Structural basis for antagonist-mediated recruitment of nuclear co-repressors by PPARalpha. Nature. 2002 Feb 14;415(6873):813-7.
3. Abu Aboud O, et al. PPARα inhibition modulates multiple reprogrammed metabolic pathways in kidney cancer and attenuates tumor growth. Am J Physiol Cell Physiol. 2015 Jun 1;308(11):C890-8.
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