國家衛生研究院 NHRI:Item 3990099045/13498
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    Please use this identifier to cite or link to this item: http://ir.nhri.org.tw/handle/3990099045/13498


    Title: Investigation of the molecular mechanisms by which endothelin-3 stimulates preadipocyte growth
    Authors: Siao, AC;Shih, LJ;Lin, YY;Tsuei, YW;Kuo, YC;Ku, HC;Chuu, CP;Hsiao, PJ;Kao, YH
    Contributors: Institute of Cellular and Systems Medicine
    Abstract: Endothelins induce many biological responses, and they are composed of three peptides: ET-1, ET-2, and ET-3. Reports have indicated that ET-1 regulates cell proliferation, adipogenesis, and other cell responses and that ET-3 stimulates the growth of gastrointestinal epithelial cells and melanocytes. However, the signalling pathways of ET3 that mediate the growth of fat cells are still unclear. Using 3T3-L1 white preadipocytes, we found that ET-3 induced increases in both cell number and BrdU incorporation. Pretreatment with an ETAR antagonist (but not an ETBR antagonist) blocked the ET-3-induced increases in both cell number and BrdU incorporation. Additionally, BQ610 suppressed the ET-3-induced increases in phosphorylation of AMPK, c-JUN, and STAT3 proteins, and pretreatment with specific inhibitors of AMPK, JNK/c-JUN, or JAK/STAT3 prevented the ET-3-induced increases in phosphorylation of AMPK, c-JUN, and STAT3, respectively. Neither p38 MAPK inhibitor nor PKC inhibitor altered the effects of ET-3 on cell growth. These data suggest that ET-3 stimulates preadipocyte growth through the ETAR, AMPK, JNK/c-JUN, and STAT3 pathways. Moreover, ET-3 did not alter HIB1B brown preadipocyte and D12 beige preadipocyte growth, suggesting a preadipocyte type-dependent effect. The results of this study may help explain how endothelin mediates fat cell activity and fat cell-associated diseases.
    Date: 2021-05-21
    Relation: Frontiers in Endocrinology. 2021 May 21;12:Article number 661828.
    Link to: http://dx.doi.org/10.3389/fendo.2021.661828
    JIF/Ranking 2023: http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcAuth=NHRI&SrcApp=NHRI_IR&KeyISSN=1664-2392&DestApp=IC2JCR
    Cited Times(WOS): https://www.webofscience.com/wos/woscc/full-record/WOS:000657861900001
    Cited Times(Scopus): https://www.scopus.com/inward/record.url?partnerID=HzOxMe3b&scp=85107427088
    Appears in Collections:[Chih-Pin Chuu] Periodical Articles

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