CRISPR/dCas9系统在活细胞成像领域的研究进展  

Advances of CRISPR/dCas9 system in live cell imaging

作　　者：林斯雨 钟星[2] 马立新[1] 乔洁 刘奕 Siyu Lin;Xing Zhong;Lixin Ma;Jie Qiao;Yi Liu(State Key Laboratory of Biocatalysis and Enzyme Engineering,School of Life Sciences,Hubei University,Wuhan 430062,Hubei,China;Zhixing College,Hubei University,Wuhan 430011,Hubei,China)

机构地区：[1]湖北大学生命科学学院省部共建生物催化与酶工程国家重点实验室,湖北武汉430062 [2]湖北大学知行学院,湖北武汉430011

出　　处：《生物工程学报》2021年第9期3061-3070,共10页Chinese Journal of Biotechnology

基　　金：国家自然科学基金(Nos.21907027,22007030);中国博士后科学基金(No.2019M662573);湖北省自然科学基金(No.2020CFB253)资助。

摘　　要：研究不同基因、染色体以及基因与染色体之间的时空关系在遗传学、发育生物学和生物医学等领域具有重要意义。CRISPR/Cas9基因编辑技术具有优异的靶向性,已经成为应用最广泛的基因编辑工具。近年来,研究人员基于Cas9的核酸酶失活突变体dCas9发展了一系列先进的活细胞成像技术,为染色质、基因组特定位点的高分辨成像提供了快速、方便的研究工具。文中从细胞递送方式、荧光信号优化以及正交多色成像3个方面对CRISPR/dCas9系统在活细胞成像中的研究进展进行了综述,并对该领域的发展趋势进行了展望。The study of distinct genes, chromosomes and the spatio-temporal relationships between them is of great significance in genetics, developmental biology and biomedicine. CRISPR/Cas9 has become the most widely used gene editing tool due to its excellent targeting ability. Recently, researchers have developed a series of advanced live cell imaging techniques based on the nuclease-inactivated mutant of Cas9(dCas9), providing rapid and convenient tools for high-resolution imaging of specific sites in the chromatin and genome. This review summarizes the advances of CRISPR/dCas9 system in live cell imaging from three aspects, including the strategies of cell delivery, optimization of the fluorescence signals, as well as orthogonal and multicolor imaging. Furthermore, we shed light on the development trends and prospects of this field.

关 键 词：基因编辑 CRISPR/dCas9 基因组成像 染色体成像 

分 类 号：Q78[生物学—分子生物学]