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作为结直肠癌诊断生物标志物的血衍生外体tRF-3004a

Manli Zhou¹, Xiaoqian Yu², Jing Zhang³

¹Department of Clinical Laboratory, Xiangya Hospital, Central South University, Changsha, Hunan, 410008, China.

Scientific reports

|November 27, 2025

概括

血衍生的外体转移RNA衍生的小RNAs (tsRNAs),特别是tRF-3004a,在结肠直肠癌 (CRC) 患者中显示高水平. 这一发现表明tsRNAs可能是早期CRC检测的新型诊断生物标志物.

科学领域:

在瘤学瘤学.
分子生物学分子生物学
生物标志物发现发现

背景情况:

转移RNA衍生的小RNAs (tsRNAs) 越来越多地被认为是它们在癌症生物学中的调节作用.
RNAs的诊断潜力,特别是在结直肠癌 (CRC) 中,仍然在很大程度上未被探索.
外体,小细胞外囊泡,是体液中非侵入性生物标志物检测的有希望的来源.

研究的目的:

研究血衍生的外体tRF-3004a作为结直肠癌 (CRC) 诊断生物标志物的潜力.
为了将血衍生的外体tRF-3004a水平与CRC的临床病理特征相关联.
评估tRF-3004a在区分CRC患者与健康对照中的诊断性能.

主要方法:

从123名CRC患者和79名健康对照 (HC) 收集了血样本.
从血中分离出外体,验证,并使用qRT-PCR量化tRF-3004a表达.
使用了统计分析,包括千平方测试和ROC曲线分析.

主要成果:

与HC患者相比,CRC患者的血衍生外体tRF-3004a水平显著高于CRC患者,并在手术后降低.
提升的tRF-3004a表达与淋巴结转移,TNM分期,CEA水平和神经/血管侵入有显著的相关性.
对tRF-3004a的ROC分析显示出有希望的诊断效用 (AUC = 0.819),灵敏度为0.691和特异性为0.861.

结论:

血衍生的外体tRF-3004a是一种新的,有前途的结直肠癌诊断生物标志物.
将tRF-3004a与CEA和CA19-9等现有生物标志物的组合可以提高诊断准确性 (AUC = 0.867).
需要进一步的研究来验证这些发现,并探索治疗影响.

关键词:

诊断诊断诊断诊断诊断外基因组是外基因组的组成部分.液体活检液体活检在等离子体中,我们可以得到等离子体.转移RNA衍生的小RNAs.

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