ASCO 2014:循环EBV-DNA水平可动态预测ENKL的治疗效果

2014-05-31 悄悄 译 医学论坛网

摘要号:8562 第一作者:梁超勇,中山大学附属肿瘤医院 标题:早期的阴性循环EB病毒DNA可作为鼻型结外NK/T细胞淋巴瘤(ENKL)的生存预测。 背景:对于具有高侵袭性和不良预后的鼻型结外NK/ T细胞淋巴瘤(ENKL),预测肿瘤标志物是十分必要的。本次的前瞻性研究旨在通过循环EB病毒DNA浓度的动态监测值的评估对ENKL进行预测。 方法:从200

摘要号:8562

第一作者:梁超勇,中山大学附属肿瘤医院

标题:早期的阴性循环EB病毒DNA可作为鼻型结外NK/T细胞淋巴瘤(ENKL)的生存预测。

背景:对于具有高侵袭性和不良预后的鼻型结外NK/ T细胞淋巴瘤(ENKL),预测肿瘤标志物是十分必要的。本次的前瞻性研究旨在通过循环EB病毒DNA浓度的动态监测值的评估对ENKL进行预测。

方法:从2006年1月至2012年8月,共采集113 例ENKL患者的血浆样品,使用实时PCR对化疗前和/或每2个化疗周期的循环EB病毒进行DNA测定。

结果:循环EB病毒DNA阳性率为61.9%(70/113)其中位浓度为1.21×103copies/ml。化疗两个周期后,45名测试循环EBV-DNA的患者中53.33%(24/45)的EBV-DNA为阴性。有87.5%(21/24)患者在治疗结束时获得完全缓解,有42.86%(9/21)的患者的EBV DNA仍为阳性(P=0.002)。而在两个化疗周期后EBV-DNA转阴的患者则显示出有更好的预后的趋势(5年总生存率:75%vs46%,P=0.074)。在化疗周期完成时检测EBV DNA其完全缓解率和总生存率与之前情况相似。在晚期患者中发现EBV DNA的浓度较高。选取2×104copies/ml为临界点将阳性组分为低剂量组和高剂量组,发现高剂量组的完全缓解率明显降低,而5年总生存率与低剂量组和阴性组相比则较好,7名复发患者(7/13)的EBV DNA 浓度>1×103copies/ml,其预后与其它6名EBV DNA 浓度<1×103copies/ml患者相比较差(5年总生存率: 0% vs 80%, P=0.001)。

结论:循环EBV-DNA水平可作为动态指标对ENKL的治疗效果进行预测。在2个化疗周期后早期检测出EBV DNA阳性的患者,也许应该受到更为积极的治疗。

研究链接:Early negative circulating EBV DNA as prediction of survival in extranodal NK/T-cell lymphoma, nasal type (ENKL). 

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    2014-08-15 wgx306
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    2014-12-19 quxin068
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