肿瘤相关循环游离核酸的研究进展
China Oncology(2014)
Abstract
循环游离核酸是指存在于人体血液循环中,游离于细胞外的微量内源性或外源性核酸片段。肿瘤患者的血液中游离核酸的含量明显高于健康人群,并具有与肿瘤的发生、发展相关的特征性改变,如基因突变、甲基化、杂合性丢失、片段完整性改变、microRNA的异常表达等。对血液中游离核酸的定性与定量检测,在肿瘤的筛查、诊断、个体化治疗方案的制定、病情的监测以及预后评价中均有潜在的价值。
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Key words
Cancer,Circulating cell-free nucleic acids,Cancer biomarker
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