端粒在获得性再生障碍性贫血克隆演化中的作用

Role of Telomere in Clonal Evolution of Acquired Aplastic Anemia--Review

1/3获得性再生障碍性贫血患者端粒长度存在缩短,且端粒越短的患者病程越长、越易复发、总体生存率越低,出现克隆演化的概率越大。端粒长度受到多方面因素的影响,包括端粒酶活性、端粒酶相关基因、端粒调控蛋白等。端粒缩短导致遗传信息不稳定,使获得性再生障碍性贫血患者出现克隆演化的概率增加。本文就端粒在获得性再生障碍性贫血克隆演化中的作用及影响端粒长度因素的最新研究进展作一综述。

Studies have found that 1/3 patients with acquired aplastic anemia have shortened telomere length,and the shorter the telomere,the longer the disease course,the more prone to relapse,the lower the overall survival rate,and the higher the probability of clonal evolution.The regulation of telomere length is affected by many factors,including telomerase activity,telomerase-related genes,telomere regulatory proteins and other related factors.Telomere shortening can lead to genetic instability and increases the probability of clonal evolution in patients with acquired aplastic anemia.This article reviews the role of telomere in the clonal evolution of acquired aplastic anemia and factors affecting telomere length.