ArticleZhonghua xue ye xue za zhi = Zhonghua xueyexue zazhi2015
[Influence of RNA interference on MSI-2 gene in THP-1 cell and expression of NUMB].
Article in Zhonghua xue ye xue za zhi = Zhonghua xueyexue zazhi, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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5 authors at 1 institution in 1 country.
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Abstract
objectiveTo investigate the effect of small interfering RNA（siRNA）for MSI-2 on the growth, apoptosis and NUMB expression of THP-1 cells.
methodsThree siRNA for MSI-2 gene was designed and transfected into THP- 1 cells. The cell inhibition, colony formation and apoptosis were determined. The protein expression of NUMB, caspase- 3 and PARP were detected by Western blotting.
resultsAfter MSI- 2 expression of THP- 1 cells was down- regulated for 24 hours, cell inhibition of siRNA MSI-2 group was（47.89±7.64）%, obviously higher than that of negative control group（P=0.005）. After 9 days, cell colony count of siRNA MSI-2 group was 7.50±1.53, also lower than that of negative control group（35.75±7.46, P<0.001）. In addition, apoptotic rates of siRNA MSI- 2 group at 24 hours ［（15.22±1.52）%］and 48 hours［（33.83±3.96）%］were significantly higher than those of negative control group（P=0.008 and P=0.001, respectively）. Accordingly, activations of caspase-3 and PARP and increased NUMB were observed in siRNA MSI- 2 group.
conclusionsiRNA for MSI- 2 gene could increase the expressions of NUMB to inhibit the proliferation and induce apoptosis of THP-1 cells.
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