文章基本信息

标题：Adenylyl cyclase 3 haploinsufficiency confers susceptibility to diet-induced obesity and insulin resistance in mice
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作者：Tao Tong ; Ying Shen ; Han-Woong Lee 等
期刊名称：Scientific Reports
电子版ISSN：2045-2322
出版年度：2016
卷号：6
期号：1
DOI：10.1038/srep34179
语种：English
出版社：Springer Nature
摘要：Adenylyl cyclase 3 (Adcy3), a member of the mammalian adenylyl cyclase family responsible for generating the second messenger cAMP, has long been known to play an essential role in olfactory signal transduction. Here, we demonstrated that Adcy3 heterozygous null mice displayed increased visceral adiposity in the absence of hyperphagia and developed abnormal metabolic features characterized by impaired insulin sensitivity, dyslipidemia, and increased plasma levels of proinflammatory cytokines on both chow and high-fat diet (HFD). Of note, HFD decreased the Adcy3 expression in white adipose tissue, liver, and muscle. We also report for the first time that Adcy3 haploinsufficiency resulted in reduced expression of genes involved in thermogenesis, fatty acid oxidation, and insulin signaling, with enhanced expression of genes related to adipogenesis in peripheral tissues of mice. In conclusion, these findings suggest that cAMP signals generated by Adcy3 in peripheral tissues may play a pivotal role in modulating obesity and insulin sensitivity.