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Sci Rep:尿液活检的整体RNA和代谢物分析

2020-03-16 AlexYang MedSci原创

前列腺癌(PCa)的敏感和特异性诊断和预后生物标记目前紧缺。尿液样本是一种非侵入的能够大量且容易获得的"液体活检样本"。最近,有研究人员使用尿液液体活检样本鉴定和分析了PCa患者中和患有或者不患有良性

前列腺癌(PCa)的敏感和特异性诊断和预后生物标记目前紧缺。尿液样本是一种非侵入的能够大量且容易获得的"液体活检样本"。最近,有研究人员使用尿液液体活检样本鉴定和分析了PCa患者中和患有或者不患有良性前列腺增生疾病的正常个体中尿液富集的一类新RNAs和代谢物。

研究人员通过深度测序鉴定了尿液样本中的差异表达RNAs,并利用质谱分析测试了尿液的代谢物情况。研究发现,良性和恶性疾病患者中的mRNA和代谢物情况不同。泌尿系基因表达和代谢物特性额整体分析阐释了前列腺癌细胞中谷氨酸代谢和三羧酸(TCA)循环异常。功能鉴定支持了PCa中谷氨酸代谢和谷氨酸草酰乙酸氨基转移酶1(GOT1)依赖的氧化还原平衡,且可以用于探索新的生物标记和治疗。

最后,研究人员指出,他们在泌尿系RNAs和代谢物发现了癌症特异性的变化,为敏感和特异性泌尿系PCa的诊断生物标记的开发开辟了道路。他们的方法学基于single void尿液样本(没有进行前列腺按摩)。这些液体活检样本的代谢组和转录组数据的综合分析阐释了一个谷氨酸代谢和三羧酸循环节点对前列腺来源的癌症细胞和尿液中癌症特异性代谢物的变化具有特异性。

原始出处:

Bongyong Lee, Iqbal Mahmud, John Marchica et al. Integrated RNA and metabolite profiling of urine liquid biopsies for prostate cancer biomarker discovery. Sci Rep. 28 Feb 2020

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