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Title: SR2067 reveals a unique kinetic and structural signature for PPARγ partial agonism

Journal Article · · ACS Chemical Biology
 [1];  [1];  [2];  [3];  [3];  [3];  [3];  [3];  [1]
  1. The Univ. of Adelaide, Adelaide, SA (Australia)
  2. GE Healthcare Life Sciences ANZ, Melbourne, VIC (Australia)
  3. The Scripps Research Inst., Jupiter, FL (United States)

Here, synthetic full agonists of PPARγ have been prescribed for the treatment of diabetes due to their ability to regulate glucose homeostasis and insulin sensitization. While the use of full agonists of PPARγ has been hampered due to severe side effects, partial agonists have shown promise due to their decreased incidence of such side effects in preclinical models. No kinetic information has been forthcoming in regard to the mechanism of full versus partial agonism of PPARγ to date. In this paper, we describe the discovery of a partial agonist, SR2067. A co-crystal structure obtained at 2.2 Å resolution demonstrates that interactions with the β-sheet are driven exclusively via hydrophobic interactions mediated through a naphthalene group, an observation that is unique from other partial agonists. Finally, surface plasmon resonance revealed that SR2067 binds to the receptor with higher affinity (KD = 513 nM) as compared to that of full agonist rosiglitazone, yet it has a much slower off rate compared to that of rosiglitazone.

Research Organization:
Scripps Research Inst., Jupiter, FL (United States)
Sponsoring Organization:
USDOE Office of Science (SC), Basic Energy Sciences (BES); USDOE Office of Science (SC), Biological and Environmental Research (BER)
Grant/Contract Number:
AC02-76SF00515
OSTI ID:
1345039
Journal Information:
ACS Chemical Biology, Vol. 11, Issue 1; ISSN 1554-8929
Publisher:
American Chemical Society (ACS)Copyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 28 works
Citation information provided by
Web of Science

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Cited By (8)

Structural basis for PPAR partial or full activation revealed by a novel ligand binding mode journal October 2016
Identification of novel PPARα/γ dual agonists by virtual screening, ADMET prediction and molecular dynamics simulations journal September 2017
Investigations on Binding Pattern of Kinase Inhibitors with PPAR γ : Molecular Docking, Molecular Dynamic Simulations, and Free Energy Calculation Studies journal January 2017
Deep Docking - a Deep Learning Approach for Virtual Screening of Big Chemical Datasets journal December 2019
Type II diabetes mellitus and obesity: Common links, existing therapeutics and future developments journal November 2019
PPARγ in Complex with an Antagonist and Inverse Agonist: a Tumble and Trap Mechanism of the Activation Helix journal July 2018
Dihydrosanguinarine Enhances Glucose Uptake in Mouse 3T3-L1 Cells journal October 2017
Structural and Dynamic Elucidation of a Non-acid PPARγ Partial Agonist: SR1988 journal January 2018

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