Activation of the nuclear receptor peroxisome proliferator-activated receptor γ promotes brown adipocyte differentiation

Tzu Ann C Tai, Caroline Jennermann, Kathleen K. Brown, Beverly B. Oliver, Marissa A. MacGinnitie, William O. Wilkison, H. Roger Brown, Jürgen M. Lehmann, Steven A. Kliewer, David C. Morris, Reed A. Graves

Research output: Contribution to journalArticlepeer-review

144 Scopus citations


Brown adipose tissue (BAT) functions in non-shivering and diet-induced thermogenesis via its capacity for uncoupled mitochondrial respiration. BAT dysfunction in rodents is associated with severe defects in energy homeostasis, resulting in obesity and hyperglycemia. Here, we report that the nuclear receptor peroxisome proliferator-activated receptor γ (PPARγ), a prostaglandin-activated transcription factor recently implicated as a central regulator of white adipose tissue differentiation, also regulates brown adipocyte function. PPARγ is abundantly expressed in both embryonic and adult BAT. Treatment of CD-1 rats with the PPARγ-selective ligand BRL49653, an anti-diabetic drug of the thiazolidinedione class, results in marked increases in the mass of interscapular BAT. In vitro, BRL49653 induces the terminal differentiation of the brown preadipocyte cell line HIB-1B as judged by both changes in cell morphology and expression of uncoupling protein and other adipocyte-specific mRNAs. These data demonstrate that PPARγ is a key regulatory factor in brown adipocytes and suggest that PPARγ functions not only in the storage of excess energy in white adipose tissue but also in its dissipation in BAT.

Original languageEnglish (US)
Pages (from-to)29909-29914
Number of pages6
JournalJournal of Biological Chemistry
Issue number47
StatePublished - 1996

ASJC Scopus subject areas

  • Biochemistry
  • Molecular Biology
  • Cell Biology


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