Fat cells directly sense temperature to activate thermogenesis

Li Ye, Jun Wu, Paul Cohen, Lawrence Kazak, Melin J. Khandekar, Mark P. Jedrychowski, Xing Zeng, Steven P. Gygi, Bruce M. Spiegelman

Research output: Contribution to journalArticlepeer-review

Abstract

Classic brown fat and inducible beige fat both dissipate chemical energy in the form of heat through the actions of mitochondrial uncoupling protein 1. This nonshivering thermogenesis is crucial for mammals as a defense against cold and obesity/diabetes. Cold is known to act indirectly through the sympathetic nervous systems and β-adrenergic signaling, but here we report that cool temperature (27-33 °C) can directly activate a thermogenic gene program in adipocytes in a cell-autonomous manner. White and beige fat cells respond to cool temperatures, but classic brown fat cells do not. Importantly, this activation in isolated cells is independent of the canonical cAMP/Protein Kinase A/cAMP response element-binding protein pathway downstream of the β-adrenergic receptors. These findings provide an unusual insight into the role of adipose tissues in thermoregulation, as well as an alternative way to target nonshivering thermogenesis for treatment of obesity and metabolic diseases.

Original languageEnglish (US)
Pages (from-to)12480-12485
Number of pages6
JournalProceedings of the National Academy of Sciences of the United States of America
Volume110
Issue number30
DOIs
StatePublished - Jul 23 2013
Externally publishedYes

Keywords

  • Cold sensing
  • Ucp1

ASJC Scopus subject areas

  • General

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