Sci Rep:肌肉浸润性膀胱癌中关键lncRNA的亚型特异性表达和生存预测

2020-12-16 AlexYang MedSci原创

膀胱癌的综合转录组表达分析揭示了具有不同分子和临床特征的独特lncRNA簇。

膀胱癌的综合转录组表达分析揭示了具有不同分子和临床特征的独特lncRNA簇。

最近,有研究人员评估了关键lncRNA对生存的影响及其在分子膀胱癌亚型之间的差异表达。研究人员在Nanostring nCounter平台上分析了来自无化疗肌肉浸润性膀胱癌(MIBC)患者的FFPE样本,并进行了绝对定量;建立了包括36个基因的panel进行分子亚型分类,包括基底型、腔隙型和浸润型MIBC。之后研究人员评估了14个关键lncRNA的分子亚型归属,以及它们在疾病特异性生存中的预测价值。研究人员在总共487名MIBC患者(MDA、TGCA和Chungbuk队列)上进行了芯片验证。研究发现,几个关键的lncRNA表现出独特的分子亚型归属:如MALAT1在基底亚型中表现出下调(p=0.009),TUG1和CBR3AS1在腔隙亚型中表现出上调(p≤0.001)。SNHG16、CBR3AS1和H19的高转录水平似乎预示着较短的疾病特异性生存。在MIBC组织中过量表达假定的致癌基因MALAT1和TUG1的患者表现出较长的生存期,表明了这两种lncRNAs具有肿瘤抑制作用。

MIBC分子亚型中lncRNA的差异表达情况

另外,他们的研究证明了Nanostring nCounter是一个有效的低丰度转录物(包括lncRNAs)的定量平台

原始出处:

Sebastien Rinaldetti, Thomas Stefan Worst, Eugen Rempel et al. Subtype specific expression and survival prediction of pivotal lncRNAs in muscle invasive bladder cancer. Sci Rep. Nov 2020

 

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    2020-12-18 xzw113
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    2020-12-17 留走人康

    膀胱癌真怪,明明是免疫敏感性肿瘤,为什么PD-1治疗效果不好呢?难道靶点不对?将来CD47会不会有效

    0

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    2020-12-16 ms3000000449926787

    学习!

    0

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