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Yan, X.* ; Wang, Z.* ; Schmidt, V.* ; Gauert, A.* ; Willnow, T.E.* ; Heinig, M. ; Poy, M.N.*

Cadm2 regulates body weight and energy homeostasis in mice.

Mol. Metab. 8, 180-188 (2018)
Publ. Version/Full Text Research data DOI
Open Access Gold
Creative Commons Lizenzvertrag
OBJECTIVE: Obesity is strongly linked to genes regulating neuronal signaling and function, implicating the central nervous system in the maintenance of body weight and energy metabolism. Genome-wide association studies identified significant associations between body mass index (BMI) and multiple loci near Cell adhesion molecule2 (CADM2), which encodes a mediator of synaptic signaling enriched in the brain. Here we sought to further understand the role of Cadm2 in the pathogenesis of hyperglycemia and weight gain. METHODS: We first analyzed Cadm2 expression in the brain of both human subjects and mouse models and subsequently characterized a loss-of-function mouse model of Cadm2 for alterations in glucose and energy homeostasis. RESULTS: We show that the risk variant rs13078960 associates with increased CADM2 expression in the hypothalamus of human subjects. Increased Cadm2 expression in several brain regions of Lepob/ob mice was ameliorated after leptin treatment. Deletion of Cadm2 in obese mice (Cadm2/ob) resulted in reduced adiposity, systemic glucose levels, and improved insulin sensitivity. Cadm2-deficient mice exhibited increased locomotor activity, energy expenditure rate, and core body temperature identifying Cadm2 as a potent regulator of systemic energy homeostasis. CONCLUSIONS: Together these data illustrate that reducing Cadm2 expression can reverse several traits associated with the metabolic syndrome including obesity, insulin resistance, and impaired glucose homeostasis.
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Publication type Article: Journal article
Document type Scientific Article
Keywords Cadm2/syncam2 ; Energy Homeostasis ; Genome-wide Association Studies ; Insulin Sensitivity ; Leptin Signaling
ISSN (print) / ISBN 2212-8778
e-ISSN 2212-8778
Quellenangaben Volume: 8, Issue: , Pages: 180-188 Article Number: , Supplement: ,
Publisher Elsevier
Publishing Place Amsterdam
Reviewing status