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Clemmensen, C. ; Finan, B. ; Fischer, K. ; Tom, R.Z. ; Legutko, B. ; Sehrer, L. ; Heine, D. ; Grassl, N. ; Meyer, C.W. ; Henderson, B.* ; Hofmann, S.M. ; Tschöp, M.H. ; van der Ploeg, L.H.T.* ; Müller, T.D.

Dual melanocortin-4 receptor and GLP-1 receptor agonism amplifies metabolic benefits in diet-induced obese mice.

EMBO Mol. Med. 7, 288-298 (2015)
DOI PMC
Creative Commons Lizenzvertrag
Open Access Gold as soon as Publ. Version/Full Text is submitted to ZB.
We assessed the efficacy of simultaneous agonism at the glucagon-like peptide-1 receptor (GLP-1R) and the melanocortin-4 receptor (MC4R) for the treatment of obesity and diabetes in rodents. Diet-induced obese (DIO) mice were chronically treated with either the long-acting GLP-1R agonist liraglutide, the MC4R agonist RM-493 or a combination of RM-493 and liraglutide. Co-treatment of DIO mice with RM-493 and liraglutide improves body weight loss and enhances glycemic control and cholesterol metabolism beyond what can be achieved with either mono-therapy. The superior metabolic efficacy of this combination therapy is attributed to the anorectic and glycemic actions of both drugs, along with the ability of RM-493 to increase energy expenditure. Interestingly, compared to mice treated with liraglutide alone, hypothalamic Glp-1r expression was higher in mice treated with the combination therapy after both acute and chronic treatment. Further, RM-493 enhanced hypothalamic Mc4r expression. Hence, co-dosing with MC4R and GLP-1R agonists increases expression of each receptor, indicative of minimized receptor desensitization. Together, these findings suggest potential opportunities for employing combination treatments that comprise parallel MC4R and GLP-1R agonism for the treatment of obesity and diabetes.
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Publication type Article: Journal article
Document type Scientific Article
Corresponding Author
Keywords Glp‐1r ; Mc4r ; Diabetes ; Liraglutide ; Obesity; Food-intake; Leptin Responsiveness; Weight-loss; Glucagon; Rodents
ISSN (print) / ISBN 1757-4676
e-ISSN 1757-4684
Journal EMBO Molecular Medicine
Quellenangaben Volume: 7, Issue: 3, Pages: 288-298 Article Number: , Supplement: ,
Publisher Wiley
Publishing Place Chichester
Non-patent literature Publications
Reviewing status Peer reviewed
Institute(s) Institute of Diabetes and Obesity (IDO)
Institute of Diabetes and Regeneration Research (IDR)