Clin Chem:非编码RNA可作为肝癌的诊断和预后的生物标志物?

2019-07-20 gladiator MedSci原创

肝细胞癌(HCC)的诊断和预后迫切需要可靠的无创生物标志物。在此,我们不仅探索了小分子RNA (miRNAs)作为HCC生物标志物的潜力,还探索了其他类型的非编码RNA (ncRNAs)作为HCC生物标志物的潜力。 研究人员通过收集77例患者外周血标本,包括血浆无细胞RNA转录组57个,外体RNA转录组20个。在一个独立的验证队列(60-150个样本)中,使用逆转录(RT)-qPCR (qp

肝细胞癌(HCC)诊断和预后迫切需要可靠的无创生物标志物。在此,我们不仅探索了小分子RNA (miRNAs)作为HCC生物标志物的潜力,还探索了其他类型的非编码RNA (ncRNAs)作为HCC生物标志物的潜力。

研究人员通过收集77例患者外周血标本,包括血浆无细胞RNA转录组57个,外体RNA转录组20个。在一个独立的验证队列(60-150个样本)中,使用逆转录(RT)-qPCR (qpcr)对显著上调的ncRNA和已发表的潜在HCC生物标志物进行了验证。特别研究了1ncRNA biomarker, RN7SL1及其S片段的诊断、预后表现及生物学功能。

研究发现某些循环的ncRNA可以通过与RNA结合蛋白结合而逃避RNA酶降解:HCC患者中,有899ncRNA高度上调。其中,337个基因为长片段非编码RNA, 252个基因为小核仁RNA, 134个基因为pi-RNA。选择48个候选基因进行RT-qPCR验证,其中RN7SL1SNHG1ZFAS1LINC0135916ncRNAHCC中显著上调。特别是RN7SL1 S片段的丰度可以区分阴性对照的HCC样本(曲线下面积为0.87;95%可信区间,0.817 - -0.920)RN7SL1 S片段浓度较高的HCC患者生存率较低。此外,RN7SL1 S片段单独促进癌细胞增殖和克隆生长。

我们的研究结果表明,在血浆小RNA测序中发现了miRNA以外的多种ncRNA,这类RNA可作为非侵入性的生物标志物。特别是,我们发现srpRNA RN7SL1HCC诊断和预后方面具有可靠的临床表现。

原始出处:

Chang Tan, Jingyi Cao,Noncoding RNAs Serve as Diagnosis and Prognosis Biomarkers for Hepatocellular Carcinoma

本文系梅斯医学(MedSci)原创编译整理,转载需授权!



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    2020-01-20 d830384
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    2019-07-21 留走人康

    肝癌,接下来就要细分了,对于体质好的病人,能否将PD-1类+抗血管新生+放疗等相结合,甚至有必要用TACE进行减负

    0

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