端粒(Telomer)和端粒酶(Telomerase)是近几年来生命科学研究中的热点之一。绝大多数生物细胞DNA的端粒随着细胞分裂而缩短,当缩短到一定长度,即达到一危机点时,细胞不再分裂而衰老、死亡。少数细胞逃逸危机点,激活端粒酶,从而永生化或恶变。目前普遍认为,绝大部分正常人体细胞 Telomer and Telomerase are among the hot topics in life sciences in recent years. Most of the biological cells of DNA telomere shortened with the cell division, when shortened to a certain length, that is to reach a crisis point, the cells no longer divide and aging, death. A handful of cell escape crises activate telomerase, immortalizing or malignant. It is generally believed that the vast majority of normal human cells