Sci Rep:在肌肉侵入性膀胱癌中,血浆和尿液突变体DNA与临床结果的关系

2017-07-19 AlexYang MedSci原创

肌肉侵入性膀胱癌(MIBC)具有着不良预后的特征。同时,病人可以在新辅助治疗中(NAC)获得6%的总生存率提高,但是许多病人对该疗法并无响应。体液突变DNA(mutDNA)也许可以进行治疗失败的非侵入性鉴定。最近,有研究人员收集了248份液体活检样本,包括了血浆、细胞团(UCP)和离心过尿液的上清液(USN),并且这些样本来自17名经历过NAC的病人。另外,在mutDNA中,研究人员利用带标签的扩

肌肉侵入性膀胱癌(MIBC)具有着不良预后的特征。同时,病人可以在新辅助治疗中(NAC)获得6%的总生存率提高,但是许多病人对该疗法并无响应。体液突变DNA(mutDNA)也许可以进行治疗失败的非侵入性鉴定。

最近,有研究人员收集了248份液体活检样本,包括了血浆、细胞团(UCP)和离心过尿液的上清液(USN),并且这些样本来自17名经历过NAC的病人。另外,在mutDNA中,研究人员利用带标签的扩增自和全基因组浅测序技术评估了单个核苷酸多样性和复制数改变。研究发现,在NAC前血浆中、UCP中和USN样本中,分别有35.3%、47.1%和52.9%的样本检测到了MutDNA,并且尿液样本含有更高水平的mutDNA(p=<0.001)。在NAC的选择压力下,纵向mutDNA表现出了肿瘤的进化。在一个案例中,尿液分析追踪到了2个不同的克隆,并且具有很大差异的治疗敏感性。值得关注的是,在NAC治疗中持续进行mutDNA检测可以预测疾病复发(p=0.003),表现出了它作为一个化疗响应的一个早期生物标记潜力。

原始出处:

K. M. Patel, K. E. van der Vos, C. G. Smith et al. Association Of Plasma And Urinary Mutant DNA With Clinical Outcomes In Muscle Invasive Bladder Cancer. Sci Rep. 17 July 2017.

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    2017-07-20 大爰

    学习了谢谢分享!!

    0

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    2017-07-20 189****7206

    学习了谢谢分享

    0

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