Fibroblast growth factor 21 improves hepatic insulin sensitivity by inhibiting mammalian target of rapamycin complex 1 in mice.
Fibroblast growth factor 21 improves hepatic insulin sensitivity by inhibiting mammalian target of rapamycin complex 1 in mice.
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成纤维细胞生长因子 21 通过抑制小鼠雷帕霉素复合物 1 的哺乳动物靶点提高肝脏胰岛素敏感性
DOI:
10.1002/hep.28523
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发表时间:
2016-08
期刊:
影响因子:
--
通讯作者:
Li Y
中科院分区:
文献类型:
--
作者:
Gong Q;Hu Z;Zhang F;Cui A;Chen X;Jiang H;Gao J;Chen X;Han Y;Liang Q;Ye D;Shi L;Chin YE;Wang Y;Xiao H;Guo F;Liu Y;Zang M;Xu A;Li Y
Among the 22 fibroblast growth factors (FGFs), FGF21 has now emerged as a key metabolic regulator. However, the mechanism whereby FGF21 mediates its metabolic actions per se remains largely unknown. Here, we show that FGF21 represses mammalian target of rapamycin complex 1 (mTORC1) and improves insulin sensitivity and glycogen storage in a hepatocyte‐autonomous manner. Administration of FGF21 in mice inhibits mTORC1 in the liver, whereas FGF21‐deficient mice display pronounced insulin‐stimulated mTORC1 activation and exacerbated hepatic insulin resistance (IR). FGF21 inhibits insulin‐ or nutrient‐stimulated activation of mTORC1 to enhance phosphorylation of Akt in HepG2 cells at both normal and IR condition. TSC1 deficiency abrogates FGF21‐mediated inhibition of mTORC1 and augmentation of insulin signaling and glycogen synthesis. Strikingly, hepatic βKlotho knockdown or hepatic hyperactivation of mTORC1/ribosomal protein S6 kinase 1 abrogates hepatic insulin‐sensitizing and glycemic‐control effects of FGF21 in diet‐induced insulin‐resistant mice. Moreover, FGF21 improves methionine‐ and choline‐deficient diet‐induced steatohepatitis. Conclusions: FGF21 acts as an inhibitor of mTORC1 to control hepatic insulin action and maintain glucose homeostasis, and mTORC1 inhibition by FGF21 has the therapeutic potential for treating IR and type 2 diabetes. (Hepatology 2016;64:425‐438)
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DOI:
10.1083/jcb.200403069
发表时间:
2004-07-19
期刊:
The Journal of cell biology
影响因子:
--
作者:
Harrington LS;Findlay GM;Gray A;Tolkacheva T;Wigfield S;Rebholz H;Barnett J;Leslie NR;Cheng S;Shepherd PR;Gout I;Downes CP;Lamb RF
通讯作者:
Lamb RF
影响因子:
7.7
作者:
Markan KR;Naber MC;Ameka MK;Anderegg MD;Mangelsdorf DJ;Kliewer SA;Mohammadi M;Potthoff MJ
通讯作者:
Potthoff MJ
影响因子:
15.9
作者:
Emanuelli, Brice;Vienberg, Sara G.;Kahn, C. Ronald
通讯作者:
Kahn, C. Ronald
影响因子:
29.4
作者:
Li Y;Wong K;Giles A;Jiang J;Lee JW;Adams AC;Kharitonenkov A;Yang Q;Gao B;Guarente L;Zang M
通讯作者:
Zang M
影响因子:
29
作者:
Badman, Michael K.;Pissios, Pavlos;Maratos-Flier, Eleftheria
通讯作者:
Maratos-Flier, Eleftheria