MicroRNA-96 Promotes Schistosomiasis Hepatic Fibrosis in Mice by Suppressing Smad7

MicroRNA-96 Promotes Schistosomiasis Hepatic Fibrosis in Mice by Suppressing Smad7
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MicroRNA-96 通过抑制 Smad7 促进小鼠血吸虫病肝纤维化

DOI:
10.1016/j.omtm.2018.10.002
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发表时间:
2018-10
期刊:
Molecular Therapy: Methods & Clinical Development Vol. 11 December 2018,73-82
影响因子:
--
通讯作者:
Weiqing Pan
Weiqing Pan
中科院分区:
其他
文献类型:
--
作者:
Xufeng Luo;Dongmei Zhang;Jun Xie;Qin Su;Xing He;Ruipu Bai;Guangping Gao;Weiqing Pan

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血吸虫感染引起宿主microRNAs(miRNAs)的异常表达,使失调的miRNAs水平正常化可以减轻病理。在这里,我们发现宿主miRNA,miR-96,在肝血吸虫病的进展过程中显著上调。我们证明miR-96的升高通过抑制其靶基因Smad 7的表达诱导感染小鼠的肝纤维化。我们发现血吸虫感染可诱导转化生长因子β1(TGF-β1)的表达,而TGF-β1又通过SMAD 2/3-DROSHA介导的转录后调节上调miR-96的表达。此外,用重组腺相关病毒8(rAAV 8)介导的坚韧诱饵RNA在小鼠中抑制miR-96可减轻肝纤维化,并防止病毒感染后的致死性。综上所述,我们的数据突出了rAAV 8介导的miR-96抑制作为治疗肝血吸虫病的治疗策略的潜力。
Infection withSchistosomacauses aberrant expression of host microRNAs (miRNAs), and normalizing the levels of dysregulated miRNAs can attenuate pathology. Here, we show that the host miRNA,miR-96, is markedly upregulated during the progression of hepatic schistosomiasis. We demonstrate that elevation ofmiR-96induces hepatic fibrosis in infected mice by suppressing the expression of its target gene,Smad7. We show that infection withSchistosomainduces the expression of transforming growth factor β1 (TGF-β1), which in turn upregulates the expression ofmiR-96through SMAD2/3-DROSHA-mediated post-transcriptional regulation. Furthermore, inhibition ofmiR-96with recombinant adeno-associated virus 8 (rAAV8)-mediated delivery of Tough Decoy RNAs in mice attenuated hepatic fibrosis and prevented lethality following schistosome infection. Taken together, our data highlight the potential for rAAV8-mediated inhibition ofmiR-96as a therapeutic strategy to treat hepatic schistosomiasis.
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