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Identification of a novel selective PPAR$$γ$$ ligand with a unique binding mode and improved therapeutic profile in vitro

Journal Article · · Scientific Reports
DOI:https://doi.org/10.1038/srep41487· OSTI ID:1438869
 [1];  [2];  [2];  [3];  [3];  [3];  [4]
  1. Guangzhou Medical Univ. (China); Chinese Academy of Sciences (CAS), Shanghai (China)
  2. Chinese Academy of Sciences (CAS), Shanghai (China)
  3. Van Andel Research Inst., Grand Rapids, MI
  4. Chinese Academy of Sciences (CAS), Shanghai (China); Van Andel Research Inst., Grand Rapids, MI
Thiazolidinediones (TZD) function as potent anti-diabetic drugs through their direct action on the nuclear receptor peroxisome proliferator-activated receptor γ (PPARγ), but their therapeutic benefits are compromised by severe side effects. To address this concern, here we developed a potent “hit” compound, VSP-51, which is a novel selective PPARγ-modulating ligand with improved therapeutic profiles in vitro compared to the multi-billion dollar TZD drug rosiglitazone (Rosi). Unlike Rosi, VSP-51 is a partial agonist of PPARγ with improved insulin sensitivity due to its ability to bind PPARγ with high affinity without stimulating adipocyte differentiation and the expression of adipogenesis-related genes. We have determined the crystal structure of the PPARγ ligand-binding domain (LBD) in complex with VSP-51, which revealed a unique mode of binding for VSP-51 and provides the molecular basis for the discrimination between VSP-51 from TZDs and other ligands such as telmisartan, SR1663 and SR1664. Taken together, our findings demonstrate that: a) VSP-51 can serve as a promising candidate for anti-diabetic drug discovery; and b) provide a rational basis for the development of future pharmacological agents targeting PPARγ with advantages over current TZD drugs.
Research Organization:
Argonne National Laboratory (ANL), Argonne, IL (United States). Advanced Photon Source (APS)
Sponsoring Organization:
Amway; Institutes for Drug Discovery and Development; Jay and Betty Van Andel Foundation; National Natural Science Foundation of China (NSFC); Youth Innovation Promotion Association Chinese Academy of Sciences (CAS), the Shanghai Municipal Natural Science Foundation
OSTI ID:
1438869
Journal Information:
Scientific Reports, Journal Name: Scientific Reports Vol. 7; ISSN 2045-2322
Publisher:
Nature Publishing GroupCopyright Statement
Country of Publication:
United States
Language:
ENGLISH

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