Stress-responsive FKBP51 regulates AKT2-AS160 signaling and metabolic function.
Stress-responsive FKBP51 regulates AKT2-AS160 signaling and metabolic function.
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DOI:
10.1038/s41467-017-01783-y
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发表时间:
2017-11-23
影响因子:
16.6
通讯作者:
Schmidt MV
中科院分区:
文献类型:
--
作者:
Balsevich G;Häusl AS;Meyer CW;Karamihalev S;Feng X;Pöhlmann ML;Dournes C;Uribe-Marino A;Santarelli S;Labermaier C;Hafner K;Mao T;Breitsamer M;Theodoropoulou M;Namendorf C;Uhr M;Paez-Pereda M;Winter G;Hausch F;Chen A;Tschöp MH;Rein T;Gassen NC;Schmidt MV
The co-chaperone FKBP5 is a stress-responsive protein-regulating stress reactivity, and its genetic variants are associated with T2D related traits and other stress-related disorders. Here we show that FKBP51 plays a role in energy and glucose homeostasis. Fkbp5 knockout (51KO) mice are protected from high-fat diet-induced weight gain, show improved glucose tolerance and increased insulin signaling in skeletal muscle. Chronic treatment with a novel FKBP51 antagonist, SAFit2, recapitulates the effects of FKBP51 deletion on both body weight regulation and glucose tolerance. Using shorter SAFit2 treatment, we show that glucose tolerance improvement precedes the reduction in body weight. Mechanistically, we identify a novel association between FKBP51 and AS160, a substrate of AKT2 that is involved in glucose uptake. FKBP51 antagonism increases the phosphorylation of AS160, increases glucose transporter 4 expression at the plasma membrane, and ultimately enhances glucose uptake in skeletal myotubes. We propose FKBP51 as a mediator between stress and T2D development, and potential target for therapeutic approaches. Stress is recognized as risk factor for the development of type 2 diabetes. Here Balsevich et al. show that the stress responsive co-chaperone FKBP5 regulates glucose metabolism in mice by modulating AS160 phosphorylation, glucose transporter expression and muscle glucose uptake.
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通讯作者:
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