Oncol Rep: PARP1-siRNA能够抑制人类前列腺癌细胞的生长和恶化

2018-02-21 AlexYang MedSci原创

Poly聚合酶(PARP)抑制剂,比如奥拉帕尼或者rucaparib,在BRCA1/2缺陷型肿瘤中展现出了治疗活性。然而,虽然PARP抑制剂(PARPi)主要调控PARP的激活而不是表达,是否PARP特异性针对的小干扰RNA(siRNA)与PARRPi具有与相同的功能仍旧未知。最近,有研究人员阐释了不考虑BRCA1/2的变异,PARP-1能够减少前列腺癌(PCa)细胞的恶化。PARP1的沉默能够显

Poly聚合酶(PARP)抑制剂,比如奥拉帕尼或者rucaparib,在BRCA1/2缺陷型肿瘤中展现出了治疗活性。然而,虽然PARP抑制剂(PARPi)主要调控PARP的激活而不是表达,是否PARP特异性针对的小干扰RNA(siRNA)与PARRPi具有与相同的功能仍旧未知。

最近,有研究人员阐释了不考虑BRCA1/2的变异,PARP-1能够减少前列腺癌(PCa)细胞的恶化。PARP1的沉默能够显著的抑制PC3细胞的迁移和入侵。另外,PARP1-siRNA同样能够抑制PC3和Du145细胞的增殖。在多烯紫杉醇诱导的细胞凋亡之后,PARP1-siRNA能够抑制PC3细胞异种种植肿瘤的大小并且产生一种更加常规的形态。在体内和体外试验中,PARP-1沉默能够显著地下调波形蛋白的表达和上调E-钙粘蛋白的表达,两者均是上皮-间质转化(EMT)的标记。PI3K抑制剂能够使得PARPi的作用更加明显。显著的是,PARP1-siRNA能够抑制EGFR和p-GSK3β 在前列腺癌细胞中的表达,这与PARPi的作用不同。

最后,研究人员指出,他们的结果表明了PARP1-siRNA能够抑制PCa细胞的生长和入侵能力,因此表明了PARP1-siRNA与PARPi的作用是不同的,这也许为PCa的治疗提供了一个潜在的治疗方法。

原始出处:

Lai Y, Kong Z, Zeng T et al. PARP1-siRNA suppresses human prostate cancer cell growth and progression. Oncol Rep. 26 Jan 2018.

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    2018-11-09 minlingfeng
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    2018-02-25 梦想起航ing

    学习了.很棒.谢谢

    0

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    2018-02-23 yxch36
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    2018-02-23 lishiwen

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