Cyclophilin D deficiency prevents diet-induced obesity in mice

Kishor Devalaraja-Narashimha, Alicia M. Diener, Babu J. Padanilam

Research output: Contribution to journalArticle

14 Scopus citations

Abstract

Mitochondrial coupling efficiency is pivotal in thermogenesis and energy homeostasis. Here we show that deletion of cyclophilin D (CypD), a key modulator of the mitochondrial permeability transition pore, demonstrated resistance to diet-induced obesity (DIO) in both male and female mice, due to increased basal metabolic rate, heat production, total energy expenditure and expenditure of fat energy, despite increased food consumption. Absorption of fatty acids is not altered between CypD-/- and wild-type mice. Adult CypD-/- developed hyperglycemia, insulin resistance and glucose intolerance albeit resistant to DIO. These data demonstrate that inhibition of CypD function could protect from HFD-IO by increasing energy expenditure in both male and female mice. Inhibition of CypD may offer a novel target to modulate metabolism.

Original languageEnglish (US)
Pages (from-to)677-682
Number of pages6
JournalFEBS Letters
Volume585
Issue number4
DOIs
StatePublished - Feb 18 2011

Keywords

  • Adolescent obesity
  • Energy metabolism
  • Mitochondrial uncoupling
  • Permeability transition pore

ASJC Scopus subject areas

  • Biophysics
  • Structural Biology
  • Biochemistry
  • Molecular Biology
  • Genetics
  • Cell Biology

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