中科院神经科学研究所团队突破体细胞克隆猴的世界难题
Published:12 Feb.2018    Source:http://www.cncbd.org.cn/News/Detail/7438

2017年11月27日世界上首个体细胞克隆猴“中中”在中科院神经科学研究所、脑科学与智能技术卓越创新中心的非人灵长类平台诞生; 12月5日第二个克隆猴“华华”诞生。生物学顶尖学术期刊“细胞”(Cell)以封面文章在1月25日在线发表此项成果。

 

自从1997年“多莉羊”体细胞克隆成功后,许多哺乳类动物的体细胞克隆也相继成功,但与人类相近的灵长类动物(猕猴)的体细胞克隆一直是没有解决的难题。没有克隆猴,就很难建立模拟人类疾病的动物模型。中科院神经所孙强研究员率领以博士后刘真为主的团队,经过五年的不懈努力,成功地突破了这个生物学前沿的难题。这一成功标志着中国将率先开启以猕猴作为实验动物模型的时代,这一突破也实现了“领跑、弯道超车、三个面向”的目标,进一步巩固了中国科学家在我国即将启动的灵长类全脑介观神经联接图谱国际大科学计划中的主导地位。

 

体细胞克隆猴的重要性在于能在一年内产生大批遗传背景相同的模型猴。使用体细胞在体外有效地做基因编辑,准确地筛选基因型相同的体细胞,然后用核移植方法产生基因型完全相同的大批胚胎,用母猴载体怀孕出生一批基因编辑和遗传背景相同的猴群。这是制作脑科学研究和人类疾病动物模型的关键技术。

 

面向国家重大需求,脑疾病模型猴的制作将为脑疾病的机理研究、干预、诊治带来前所未有的光明前景。目前绝大多数脑疾病之所以不能有效治疗,主要的原因之一是研发药物通用的小鼠模型和人类相差甚远,研发出的药物在人体检测时大都无效或有副作用。体细胞克隆猴的成功,将推动我国率先发展出基于非人灵长类疾病动物模型的全新医药研发产业链,促进针对阿尔茨海默病、自闭症等脑疾病,以及免疫缺陷、肿瘤、代谢性疾病的新药研发进程。以我国科学家为主导的灵长类全脑图谱计划的实施和灵长类脑科学的前沿研究,将进一步使我国成为世界脑科学人才的汇聚高地。

 

来源:中科院上海神经科学研究所

 

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