端粒酶逆转录酶基因启动子的克隆及其转录活性的检测
ACADEMIC JOURNAL OF SECOND MILITARY MEDICAL UNIVERSITY(2002)
Abstract
端粒酶是一种依赖RNA的DNA聚合酶,催化合成端粒的DNA重复序列,并引导端粒添加到染色体的尾端,对维持染色体的长度、调节细胞增殖和凋亡起重要作用[1].正常人的体细胞中通常检测不到端粒酶的活性,而约90%的肿瘤细胞的端粒酶活性却大大增强[2].
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