国际肿瘤学杂志 ›› 2018, Vol. 45 ›› Issue (6): 352-354.doi: 10.3760/cma.j.issn.1673-422X.2018.06.007

• 综述 • 上一篇    下一篇

循环肿瘤DNA检测在放疗中的研究进展

王拓,李桂香   

  1. 730030 兰州大学第二医院伽玛刀治疗科
  • 收稿日期:2018-03-09 出版日期:2018-06-08 发布日期:2018-07-31
  • 通讯作者: 李桂香 E-mail:lgx.doctor.007@163.com

Research progress of circulating tumor DNA detection in radiotherapy

Wang Tuo, Li Guixiang   

  1. Department of Gamma Knife Therapy, Second Hospital of Lanzhou University, Lanzhou 730030, China
  • Received:2018-03-09 Online:2018-06-08 Published:2018-07-31
  • Contact: Li Guixiang E-mail:lgx.doctor.007@163.com

摘要: 循环肿瘤DNA(ctDNA)是位于外周循环的游离肿瘤DNA片段,携带来源于肿瘤的生物遗传学信息。近年来二代测序技术的革新拓展了ctDNA分析在临床中的应用前景,ctDNA检测在放疗领域已取得较大进展,特别是在评价放疗敏感性方面。外周血中的ctDNA具有提取方便、检测特异性高等特点。检测ctDNA不仅有利于发现微小残留病灶和肿瘤转移,而且有助于临床医生更好地进行放疗后的疗效评价和预后判断,将为恶性肿瘤的诊疗策略提供新思路。

关键词: 放射疗法, 肿瘤, 生物学标记, 预后, 循环肿瘤DNA

Abstract: Circulating tumor DNA (ctDNA) refers to the DNA segment of the free tumor located in the peripheral circulation, which carries the biologic information derived from the tumor. In recent years, the innovation of the second generation sequencing technology has expanded the prospect of the clinical application of ctDNA analysis. Detection of ctDNA has made a great progress in the field of radiation therapy, especially in the aspect of evaluating the sensitivity of radiotherapy. ctDNA in peripheral blood is characterized by convenient extraction and high specificity. Detection of ctDNA is not only conducive to find minimal residual disease and metastasis, but also help clinicians better evaluate the curative effect and judge prognosis after radiotherapy, which will provide a new way of thinking for the diagnosis and treatment strategy of tumor.

Key words: Radiotherapy, Neoplasms, Biological markers, Prognosis, Circulating tumor DNA