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Int J Mol Med:通过靶向MALAT1或可有利于肝衰竭或肝移植的治疗

2017-09-01 MedSci MedSci原创

近几年,关于长非编码RNAs(lncRNAs)的生物学功能的研究进行得如火如荼。研究已经表明,lncRNA转移相关的肺腺癌基因1(MALAT1)不仅调节肝癌的发生,还控制造血干细胞的细胞周期的进展。本研究旨在探讨lncRNA MALAT1在肝再生中的作用。研究人员在切除2/3肝的小鼠模型中进行了一系列的肝再生实验。通过一系列的体外功能分析探究了lncRNA MALAT1的功能。结果发现,肝再生过程

近几年,关于长非编码RNAs(lncRNAs)的生物学功能的研究进行得如火如荼。研究已经表明,lncRNA转移相关的肺腺癌基因1(MALAT1)不仅调节肝癌的发生,还控制造血干细胞的细胞周期的进展。本研究旨在探讨lncRNA MALAT1在肝再生中的作用。

研究人员在切除2/3肝的小鼠模型中进行了一系列的肝再生实验。通过一系列的体外功能分析探究了lncRNA MALAT1的功能。结果发现,肝再生过程中MALAT1的表达上调。MALAT1还可通过刺激细胞周期由G1期向S期转变加速肝细胞增殖,并抑制细胞凋亡。此外,研究结果还表明,肝再生过程中p53调控MALAT1,且p53可能是MALAT1活性上游的关键调节因子。具体来说,研究发现MALAT1通过抑制AXIN1和APC的表达激活Wnt /β-catenin信号通路,并随后促进cyclin D1的表达。

总的来说,这项研究的结果表明,MALAT1是肝再生的关键分子。靶向MALAT1的药物干预或可促进肝再生从而有利于肝衰竭或肝移植的治疗。

原始出处:

Cuicui Li, Lei Chang, et al., The role of lncRNA MALAT1 in the regulation of hepatocyte proliferation during liver regeneration. Int J Mol Med. 2017 Feb; 39(2): 347–356. Published online 2017 Jan 11. doi: 10.3892/ijmm.2017.2854.

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