PMID- 17981116 OWN - NLM STAT- MEDLINE DCOM- 20071206 LR - 20131121 IS - 0092-8674 (Print) IS - 0092-8674 (Linking) VI - 131 IP - 3 DP - 2007 Nov 2 TI - Targeted deletion of AIF decreases mitochondrial oxidative phosphorylation and protects from obesity and diabetes. PG - 476-91 AB - Type-2 diabetes results from the development of insulin resistance and a concomitant impairment of insulin secretion. Recent studies place altered mitochondrial oxidative phosphorylation (OxPhos) as an underlying genetic element of insulin resistance. However, the causative or compensatory nature of these OxPhos changes has yet to be proven. Here, we show that muscle- and liver-specific AIF ablation in mice initiates a pattern of OxPhos deficiency closely mimicking that of human insulin resistance, and contrary to current expectations, results in increased glucose tolerance, reduced fat mass, and increased insulin sensitivity. These results are maintained upon high-fat feeding and in both genetic mosaic and ubiquitous OxPhos-deficient mutants. Importantly, the effects of AIF on glucose metabolism are acutely inducible and reversible. These findings establish that tissue-specific as well as global OxPhos defects in mice can counteract the development of insulin resistance, diabetes, and obesity. FAU - Pospisilik, J Andrew AU - Pospisilik JA AD - Institute of Molecular Biotechnology of the Austrian Academy of Science, Dr Bohrgasse 3, 1030, Vienna, Austria. FAU - Knauf, Claude AU - Knauf C FAU - Joza, Nicholas AU - Joza N FAU - Benit, Paule AU - Benit P FAU - Orthofer, Michael AU - Orthofer M FAU - Cani, Patrice D AU - Cani PD FAU - Ebersberger, Ingo AU - Ebersberger I FAU - Nakashima, Tomoki AU - Nakashima T FAU - Sarao, Renu AU - Sarao R FAU - Neely, Gregory AU - Neely G FAU - Esterbauer, Harald AU - Esterbauer H FAU - Kozlov, Andrey AU - Kozlov A FAU - Kahn, C Ronald AU - Kahn CR FAU - Kroemer, Guido AU - Kroemer G FAU - Rustin, Pierre AU - Rustin P FAU - Burcelin, Remy AU - Burcelin R FAU - Penninger, Josef M AU - Penninger JM LA - eng SI - GEO/GSE8905 GR - DK31036/DK/NIDDK NIH HHS/United States PT - Journal Article PT - Research Support, N.I.H., Extramural PT - Research Support, Non-U.S. Gov't PL - United States TA - Cell JT - Cell JID - 0413066 RN - 0 (Apoptosis Inducing Factor) RN - 0 (Insulin) RN - IY9XDZ35W2 (Glucose) SB - IM CIN - Cell. 2007 Nov 2;131(3):448-50. PMID: 17981112 MH - Animals MH - Apoptosis Inducing Factor/*deficiency/genetics MH - Cell Respiration/drug effects MH - Diabetes Mellitus/genetics/metabolism/*prevention & control MH - Diet/adverse effects MH - *Gene Deletion MH - *Gene Targeting MH - Glucose/metabolism MH - Insulin/pharmacology MH - Liver/cytology/drug effects/metabolism MH - Mice MH - Mice, Knockout MH - Mitochondria/drug effects/*metabolism MH - Mosaicism/drug effects MH - Muscles/cytology/drug effects/metabolism MH - Obesity/genetics/metabolism/*prevention & control MH - Organ Specificity/drug effects MH - *Oxidative Phosphorylation/drug effects MH - Phenotype MH - Substrate Specificity/drug effects EDAT- 2007/11/06 09:00 MHDA- 2007/12/07 09:00 CRDT- 2007/11/06 09:00 PHST- 2007/04/06 00:00 [received] PHST- 2007/07/02 00:00 [revised] PHST- 2007/08/29 00:00 [accepted] PHST- 2007/11/06 09:00 [pubmed] PHST- 2007/12/07 09:00 [medline] PHST- 2007/11/06 09:00 [entrez] AID - S0092-8674(07)01197-X [pii] AID - 10.1016/j.cell.2007.08.047 [doi] PST - ppublish SO - Cell. 2007 Nov 2;131(3):476-91. doi: 10.1016/j.cell.2007.08.047.