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Völkers, M.* ; Doroudgar, S.* ; Nguyen, N.* ; Konstandin, M.H.* ; Quijada, P.* ; Din, S.* ; Ornelas, L.* ; Thuerauf, D.J.* ; Gude, N.* ; Friedrich, K.* ; Herzig, S.* ; Glembotski, C.C.* ; Sussman, M.A.*

PRAS40 prevents development of diabetic cardiomyopathy and improves hepatic insulin sensitivity in obesity.

EMBO Mol. Med. 6, 57-65 (2014)
Publ. Version/Full Text DOI PMC
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Diabetes is a multi-organ disease and diabetic cardiomyopathy can result in heart failure, which is a leading cause of morbidity and mortality in diabetic patients. In the liver, insulin resistance contributes to hyperglycaemia and hyperlipidaemia, which further worsens the metabolic profile. Defects in mTOR signalling are believed to contribute to metabolic dysfunctions in diabetic liver and hearts, but evidence is missing that mTOR activation is causal to the development of diabetic cardiomyopathy. This study shows that specific mTORC1 inhibition by PRAS40 prevents the development of diabetic cardiomyopathy. This phenotype was associated with improved metabolic function, blunted hypertrophic growth and preserved cardiac function. In addition PRAS40 treatment improves hepatic insulin sensitivity and reduces systemic hyperglycaemia in obese mice. Thus, unlike rapamycin, mTORC1 inhibition with PRAS40 improves metabolic profile in diabetic mice. These findings may open novel avenues for therapeutic strategies using PRAS40 directed against diabetic-related diseases.
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Publication type Article: Journal article
Document type Scientific Article
Language english
Publication Year 2014
HGF-reported in Year 0
ISSN (print) / ISBN 1757-4676
e-ISSN 1757-4684
Quellenangaben Volume: 6, Issue: 1, Pages: 57-65 Article Number: , Supplement: ,
Publisher Wiley
Publishing Place Chichester
Reviewing status Peer reviewed
PubMed ID 24408966
Erfassungsdatum 2014-12-31