Genetic Variation Determines PPARγ Function and Anti-diabetic Drug Response In Vivo

Raymond E Soccio, Eric R Chen, Satyajit R Rajapurkar, Pegah Safabakhsh, Jill M Marinis, Joanna R Dispirito, Matthew J Emmett, Erika R Briggs, Bin Fang, Logan J Everett, Hee-Woong Lim, Kyoung-Jae Won, David J Steger, Ying Wu, Mete Civelek, Benjamin F Voight, Mitchell A Lazar

77 Citations (Scopus)

Abstract

SNPs affecting disease risk often reside in non-coding genomic regions. Here, we show that SNPs are highly enriched at mouse strain-selective adipose tissue binding sites for PPARγ, a nuclear receptor for anti-diabetic drugs. Many such SNPs alter binding motifs for PPARγ or cooperating factors and functionally regulate nearby genes whose expression is strain selective and imbalanced in heterozygous F1 mice. Moreover, genetically determined binding of PPARγ accounts for mouse strain-specific transcriptional effects of TZD drugs, providing proof of concept for personalized medicine related to nuclear receptor genomic occupancy. In human fat, motif-altering SNPs cause differential PPARγ binding, provide a molecular mechanism for some expression quantitative trait loci, and are risk factors for dysmetabolic traits in genome-wide association studies. One PPARγ motif-altering SNP is associated with HDL levels and other metabolic syndrome parameters. Thus, natural genetic variation in PPARγ genomic occupancy determines individual disease risk and drug response.

Original languageEnglish
JournalCell
Volume162
Issue number1
Pages (from-to)33-44
Number of pages12
ISSN0092-8674
DOIs
Publication statusPublished - 3 Jul 2015
Externally publishedYes

Keywords

  • Adipose Tissue
  • Animals
  • Gene Expression
  • Humans
  • Hypoglycemic Agents/metabolism
  • Mice
  • Mice, 129 Strain
  • Mice, Inbred C57BL
  • PPAR gamma/genetics
  • Polymorphism, Single Nucleotide
  • Transcription Factors/metabolism

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