ANN SURG:胰腺癌循环肿瘤细胞变化与疾病状态有关

2018-08-15 MedSci MedSci原创

既往的回顾性分析表明循环肿瘤细胞亚型与胰腺导管腺癌患者总生存有关。ANN SURG近期发表了一篇文章,报道了评估循环肿瘤细胞变化的临床意义的前瞻性观察性研究实验结果。

既往的回顾性分析表明循环肿瘤细胞亚型与胰腺导管腺癌患者总生存有关。ANN SURG近期发表了一篇文章,报道了评估循环肿瘤细胞变化的临床意义的前瞻性观察性研究实验结果。

CLUSTER研究是关于胰腺导管腺癌循环肿瘤细胞变化的前瞻性研究(NCT02974764)。作者收集了200例确诊为胰腺导管腺癌患者的外周血样本,通过免疫荧光分离并鉴定循环肿瘤细胞。研究结果表明,在胰腺导管腺癌患者中共发现了两种主要的循环肿瘤细胞亚型:上皮性循环肿瘤细胞(eCTCs)和上皮/间充质性循环肿瘤细胞(mCTCs)。接受新辅助化疗的患者总CTCs(tCTCs),eCTCs和mCTCs数量均显着降低。原发肿瘤的手术切除可以显着降低CTC负荷,但不会导致其消失。多因素logistics回归模型分析表明,术前所有循环肿瘤细胞亚群数量只是术后12个月内早期复发的预测因素,在未接受化疗和接受化疗的患者中均是如此。在疾病复发前可以连续性观察到循环肿瘤细胞的变化。根据tCTCs增长的不同建立风险评分可以准确预测接下来2个月内的疾病复发情况,在未接受化疗的患者中准确率为75%,新辅助化疗后的患者准确率为84%。

文章最后认为,循环肿瘤细胞改变可以反映疾病进展及治疗反应,为临床结局提供重要信息,这些作用是现有的肿瘤标志和影像学检查所没有的。

原始出处:
Gemenetzis Georgios,Groot Vincent,et al.Circulating Tumor Cells Dynamics in Pancreatic Adenocarcinoma Correlate With Disease Status:Results of the Prospective CLUSTER Study.ANN SURG.September 2018 doi:10.1097/SLA.000000000002925

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