國家衛生研究院 NHRI:Item 3990099045/8017
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    题名: Cisd2 modulates the differentiation and functioning of adipocytes by regulating intracellular Ca2+ homeostasis
    作者: Wang, CH;Chen, YF;Wu, CY;Wu, PC;Huang, YL;Kao, CH;Lin, CH;Kao, LS;Tsai, TF;Wei, YH
    贡献者: Institute of Molecular and Genomic Medicine
    摘要: CISD2 is a causative gene associated with Wolfram syndrome (WFS). However, it remains a mystery as to how the loss of CISD2 causes metabolic defects in patients with WFS. Investigation on the role played by Cisd2 in specific cell types may help us to resolve these underlying mechanisms. White adipose tissue (WAT) is central to the maintenance of energy metabolism and glucose homeostasis in humans. In this study, adipocyte-specific Cisd2 knockout (KO) mice showed impairment in the development of epididymal WAT (eWAT) in the cell autonomous manner. A lack of Cisd2 caused defects in the biogenesis and function of mitochondria during differentiation of adipocytes in vitro. Insulin-stimulated glucose uptake and secretion of adiponectin by the Cisd2 KO adipocytes were decreased. Moreover, Cisd2 deficiency increased the cytosolic level of Ca2+ and induced Ca2+-calcineurin-dependent signaling that inhibited adipogenesis. Importantly, Cisd2 was found to interact with Gimap5 on the mitochondrial and ER membranes and thereby modulate mitochondrial Ca2+ uptake associated with the maintenance of intracellular Ca2+ homeostasis in adipocytes. Thus, it would seem that Cisd2 plays an important role in intracellular Ca2+ homeostasis, which is required for the differentiation and functioning of adipocytes as well as the regulation of glucose homeostasis in mice.
    日期: 2014-09
    關聯: Human Molecular Genetics. 2014 Sep;23(18):4770-4785.
    Link to: http://dx.doi.org/10.1093/hmg/ddu193
    JIF/Ranking 2023: http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcAuth=NHRI&SrcApp=NHRI_IR&KeyISSN=0964-6906&DestApp=IC2JCR
    Cited Times(WOS): https://www.webofscience.com/wos/woscc/full-record/WOS:000343184400003
    Cited Times(Scopus): http://www.scopus.com/inward/record.url?partnerID=HzOxMe3b&scp=84906826961
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