Review of the Structural and Dynamic Mechanisms of PPARγPartial Agonism

Author:

Kroker Alice J.1,Bruning John B.1

Affiliation:

1. School of Biological Sciences, The University of Adelaide, Adelaide, SA 5005, Australia

Abstract

PPARγ(peroxisome proliferator activated receptorγ) is a ligand activated transcription factor of the nuclear receptor superfamily that controls the expression of a variety of genes involved in fatty acid metabolism, adipogenesis, and insulin sensitivity. While endogenous ligands of PPARγinclude fatty acids and eicosanoids, synthetic full agonists of the receptor, including members of the thiazolidinedione (TZD) class, have been widely prescribed for the treatment of type II diabetes mellitus (T2DM). Unfortunately, the use of full agonists has been hampered by harsh side effects with some removed from the market in many countries. In contrast, partial agonists of PPARγhave been shown to retain favourable insulin sensitizing effects while exhibiting little to no side effects and thus represent a new potential class of therapeutics for the treatment of T2DM. Partial agonists have been found to not only display differences in transcriptional and cellular outcomes, but also act through distinct structural and dynamic mechanisms within the ligand binding cavity compared to full agonists.

Publisher

Hindawi Limited

Subject

Pharmacology (medical),Drug Discovery

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