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首页> 外文期刊>Cell metabolism >TNFAIP3 Interacting Protein 3 Overexpression Suppresses Nonalcoholic Steatohepatitis by Blocking TAK1 Activation
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TNFAIP3 Interacting Protein 3 Overexpression Suppresses Nonalcoholic Steatohepatitis by Blocking TAK1 Activation

机译:TNFAIP3相互作用蛋白3通过阻断TAK1激活来抑制非酒精性脂肪性肝炎

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摘要

Nonalcoholic steatohepatitis (NASH) is an unmet clinical challenge due to the rapid increase in its occurrence but the lack of approved drugs to treat it. Further unraveling of the molecular mechanisms underlying NASH may identify potential successful drug targets for this condition. Here, we identified TNFAIP3 interacting protein 3 (TNIP3) as a novel inhibitor of NASH. Hepatocyte-specific TNIP3 transgenic overexpression attenuates NASH in two dietary models in mice. Mechanistically, this inhibitory effect of TNIP3 is independent of its conventional role as an inhibitor of TNFAIP3. Rather, TNIP3 directly interacts with TAK1 and inhibits its ubiquitination and activation by the E3 ligase TRIM8 in hepatocytes in response to metabolic stress. Notably, adenovirus-mediated TNIP3 expression in the liver substantially blocks NASH progression in mice. These results suggest that TNIP3 may be a promising therapeutic target for NASH management.
机译:非酒精性脂肪肝炎(NASH)是一个未满足的临床挑战,因为它的发生迅速增加,但缺乏批准的药物治疗它。 进一步解开纳什下面的分子机制可以鉴定这种情况的潜在成功的药物靶标。 在这里,我们将TNFAIP3相互作用蛋白3(TNIP3)鉴定为新型肿瘤抑制剂。 特异性肝细胞特异性TNIP3转基因过表达衰减在小鼠中的两种膳食模型中衰减纳什。 机械地,TNIP3的这种抑制作用与其作为TNFAIP3的抑制剂的常规作用无关。 相反,TNIP3直接与TAK1相互作用,并响应于代谢应力,通过肝细胞中的E3连接酶TRIM8抑制其泛素化和活化。 值得注意的是,肝脏中的腺病毒介导的TNIP3表达在小鼠中显着阻断了尿液进展。 这些结果表明TNIP3可能是NASH管理的有希望的治疗目标。

著录项

  • 来源
    《Cell metabolism》 |2020年第4期|共23页
  • 作者单位

    Wuhan Univ Dept Cardiol Renmin Hosp Wuhan 430060 Peoples R China;

    Wuhan Univ Med Sci Res Ctr Renmin Hosp Wuhan 430071 Peoples R China;

    Wuhan Univ Med Sci Res Ctr Renmin Hosp Wuhan 430071 Peoples R China;

    Wuhan Univ Dept Radiol Zhongnan Hosp Wuhan 430071 Peoples R China;

    Wuhan Univ Dept Cardiol Renmin Hosp Wuhan 430060 Peoples R China;

    Wuhan Univ Inst Model Anim Wuhan 430071 Peoples R China;

    Wuhan Univ Coll Life Sci Wuhan 430072 Peoples R China;

    Cent South Univ Xiangya Hosp 3 Dept Cardiol Changsha 410013 Peoples R China;

    Wuhan Univ Dept Cardiol Renmin Hosp Wuhan 430060 Peoples R China;

    Wuhan Univ Inst Model Anim Wuhan 430071 Peoples R China;

    Wuhan Univ Basic Med Sch Wuhan 430071 Peoples R China;

    Wuhan Univ Basic Med Sch Wuhan 430071 Peoples R China;

    Wuhan Univ Med Sci Res Ctr Renmin Hosp Wuhan 430071 Peoples R China;

    Wuhan Univ Dept Cardiol Renmin Hosp Wuhan 430060 Peoples R China;

    Wuhan Univ Coll Life Sci Wuhan 430072 Peoples R China;

    Wuhan Univ Dept Radiol Zhongnan Hosp Wuhan 430071 Peoples R China;

    Wuhan Univ Dept Cardiol Renmin Hosp Wuhan 430060 Peoples R China;

    Wuhan Univ Dept Cardiol Renmin Hosp Wuhan 430060 Peoples R China;

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  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类 内分泌腺疾病及代谢病;
  • 关键词

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