申请人:Editas Medicine, Inc.
公开号:US11390884B2
公开(公告)日:2022-07-19
The methods and compositions described herein surprisingly increase CRISPR/Cas-mediated gene editing in stem cells by transiently treating the cells with a stem cell viability enhancer prior to and/or after contacting the cells with one or more CRISPR/Cas9 components. Further, this treatment also surprisingly results in increased engraftment of the stem cells into the target tissue of a subject. The present disclosure also provides one or more modified CRISPR/Cas9 components which, when used in combination with the stem cell viability enhancer, further increases the frequency of gene editing in stem cells, increases stem cell viability, and increases stem cell engraftment.
本文所述的方法和组合物在干细胞与一种或多种CRISPR/Cas9成分接触之前和/或之后,用干细胞活力增强剂瞬时处理细胞,从而令人惊讶地增加了干细胞中CRISPR/Cas介导的基因编辑。此外,这种处理方法还令人惊奇地增加了干细胞在受试者靶组织中的移植。本公开还提供了一种或多种经修饰的CRISPR/Cas9成分,当与干细胞活力增强剂结合使用时,可进一步增加干细胞基因编辑的频率,提高干细胞活力,增加干细胞移植。