Targeted Genome Replacement via Homology-directed Repair in Non-dividing Cardiomyocytes.
Targeted Genome Replacement via Homology-directed Repair in Non-dividing Cardiomyocytes.
复制标题
通过非分裂心肌细胞中的同源指导修复靶向基因组替代。
DOI:
10.1038/s41598-017-09716-x
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发表时间:
2017-08-24
影响因子:
4.6
通讯作者:
Sakata Y
中科院分区:
文献类型:
--
作者:
Ishizu T;Higo S;Masumura Y;Kohama Y;Shiba M;Higo T;Shibamoto M;Nakagawa A;Morimoto S;Takashima S;Hikoso S;Sakata Y
Although high-throughput sequencing can elucidate the genetic basis of hereditary cardiomyopathy, direct interventions targeting pathological mutations have not been established. Furthermore, it remains uncertain whether homology-directed repair (HDR) is effective in non-dividing cardiomyocytes. Here, we demonstrate that HDR-mediated genome editing using CRISPR/Cas9 is effective in non-dividing cardiomyocytes. Transduction of adeno-associated virus (AAV) containing sgRNA and repair template into cardiomyocytes constitutively expressing Cas9 efficiently introduced a fluorescent protein to the C-terminus of Myl2. Imaging-based sequential evaluation of endogenously tagged protein revealed that HDR occurs in cardiomyocytes, independently of DNA synthesis. We sought to repair a pathological mutation in Tnnt2 in cardiomyocytes of cardiomyopathy model mice. An sgRNA that avoided the mutated exon minimized deleterious effects on Tnnt2 expression, and AAV-mediated HDR achieved precise genome correction at a frequency of ~12.5%. Thus, targeted genome replacement via HDR is effective in non-dividing cardiomyocytes, and represents a potential therapeutic tool for targeting intractable cardiomyopathy.
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DOI:
10.1038/mtna.2014.38
发表时间:
2014-08-19
期刊:
Molecular therapy. Nucleic acids
影响因子:
--
作者:
通讯作者:
--
影响因子:
4.6
作者:
Hisano Y;Sakuma T;Nakade S;Ohga R;Ota S;Okamoto H;Yamamoto T;Kawahara A
通讯作者:
Kawahara A
影响因子:
64.5
作者:
Hsu PD;Lander ES;Zhang F
通讯作者:
Zhang F
影响因子:
46.9
作者:
通讯作者:
--
影响因子:
16
作者:
Ciccia A;Elledge SJ
通讯作者:
Elledge SJ