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一种以尿为基础的液体活检用于检测上道泌尿道癌:一个自我匹配的研究
Wei Wei1, Panhong Fan2, Zhishu Zhang1
1Department of Urology, Henan Provincial People's Hospital, Zhengzhou University People's Hospital, Zhengzhou, China.
BMC cancer
|September 28, 2024
概括
一项新的检测DNA甲基化和17个基因突变的尿液测试显示,它有望用于诊断上道泌尿道癌 (UTUC). 与传统细胞学方法相比,该测试显示出更高的灵敏度和特异性.
科学领域:
- 泌尿器细胞癌的癌症.
- 分子诊断学 分子诊断
- 癌症生物标志物 癌症生物标志物
背景情况:
- 精确的治疗前病理诊断上道泌尿道癌 (UTUC) 对于有效的患者管理至关重要.
- 针对UTUC的传统诊断方法存在局限性.
- 基于尿的DNA甲基化测试正在成为检测尿道癌症的工具.
研究的目的:
- 评估用于UTUC诊断的组合DNA甲基化和17基因突变试验的敏感性和特异性.
- 为了比较这种新型尿检测与传统细胞学的诊断性能.
主要方法:
- 包括一组45名接受了激进脏切除术,脏切除术,尿路透镜或活检的患者.
- 在手术前收集尿样以进行DNA甲基化以及17基因突变分析和细胞学.
- 使用ROC曲线计算和比较测试性能指标,包括灵敏度,特异性和AUC.
主要成果:
- 通过DNA甲基化加17基因突变测试,获得了86%的灵敏度和80%的特异性,AUC为0.829.
- 细胞学表现明显较低,敏感度为29%,特异性为100%.
- 在UTUC患者中检测到的常见突变是TERT (51.43%) 和TP53 (25.71%).
结论:
- DNA甲基化加上17基因突变测试表明UTUC的诊断性能令人满意.
- 这种以尿为基础的液体活检显示了在UTUC诊断中补充或取代细胞学的潜力.
- 需要进一步的多中心研究,采用更大的样本大小,以验证其临床实用性.
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