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Dommel, S.* ; Hoffmann, A. ; Berger, C.* ; Kern, M. ; Klöting, N. ; Kannt, A.* ; Blüher, M.

Effects of whole-body adenylyl cyclase 5 (Adcy5) deficiency on systemic insulin sensitivity and adipose tissue.

Int. J. Mol. Sci. 22:4353 (2021)
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Open Access Gold
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Genome-wide association studies have identified adenylyl cyclase type 5 (ADCY5) as candidate gene for diabetes-related quantitative traits and an increased risk of type 2 diabetes. Mice with a whole-body deletion of Adcy5 (Adcy5 ) do not develop obesity, glucose intolerance and insulin resistance, have improved cardiac function and increased longevity. Here, we investigated Adcy5 knockout mice (Adcy5 ) to test the hypothesis that changes in adipose tissue (AT) may con-tribute to the reported healthier phenotype. In contrast to previous reports, we found that deletion of Adcy5 did not confer any physiological or biochemical benefits. However, this unexpected find-ing allowed us to investigate the effects of Adcy5 depletion on AT independently of lower body weight and a metabolically healthier phenotype. Adcy5 mice exhibited an increased number of smaller adipocytes, lower mean adipocyte size and a distinct AT gene expression pattern with mid-line 1 (Mid1) as the most significantly downregulated gene compared to control mice. Our Adcy5 model challenges previously described beneficial effects of Adcy5 deficiency and suggests that targeting Adcy5 does not improve insulin sensitivity and may therefore limit the relevance of ADCY5 as potential drug target. –/– –/– –/– –/–
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Publication type Article: Journal article
Document type Scientific Article
Keywords Adcy5 Knockout ; Adipocyte Size ; Gene Expression ; Insulin Resistance ; Metabolism ; Running Activity; Diet-induced Obesity; Calorie Restriction; Skeletal-muscle; Life-span; Mice; Protects; Disruption; Receptor; Type-5; Homeostasis
ISSN (print) / ISBN 1422-0067
e-ISSN 1661-6596
Quellenangaben Volume: 22, Issue: 9, Pages: , Article Number: 4353 Supplement: ,
Publisher MDPI
Publishing Place Basel
Reviewing status Peer reviewed
Institute(s) Helmholtz Institute for Metabolism, Obesity and Vascular Research (HI-MAG)
Deutsche Forschungsgemeinschaft (DFG, German Research foundation)