CBS 2019
CBSMD教育中心
中 文

推荐文献

Abstract

Recommended Article

Heart Failure With Preserved, Borderline, and Reduced Ejection Fraction: 5-Year Outcomes A Combination of Allogeneic Stem Cells Promotes Cardiac Regeneration Pulmonary Artery Pressure-Guided Management of Patients With Heart Failure and Reduced Ejection Fraction Association Between Living in Food Deserts and Cardiovascular Risk 2016 ESC Guidelines for the diagnosis and treatment of acute and chronic heart failure Burden of 30-Day Readmissions After Percutaneous Coronary Intervention in 833,344 Patients in the United States: Predictors, Causes, and Cost Association of Body Mass Index With Lifetime Risk of Cardiovascular Disease and Compression of Morbidity Mode of Death in Heart Failure With Preserved Ejection Fraction

Original Research2017 Aug 24;548(7668):413-419.

JOURNAL:Nature. Article Link

Correction of a pathogenic gene mutation in human embryos

Ma H, Marti-Gutierrez N, Mitalipov S et al. Keywords: genome editing; MYBPC3 mutation; inherited hypertrophic cardiomyopathy

ABSTRACT

Genome editing has potential for the targeted correction of germline mutations. Here we describe the correction of the heterozygous MYBPC3 mutation in human preimplantation embryos with precise CRISPR-Cas9-based targeting accuracy and high homology-directed repair efficiency by activating an endogenous, germline-specific DNA repair response. Induced double-strand breaks (DSBs) at the mutant paternal allele were predominantly repaired using the homologous wild-type maternal gene instead of a synthetic DNA template. By modulating the cell cycle stage at which the DSB was induced, we were able to avoid mosaicism in cleaving embryos and achieve a high yield of homozygous embryos carrying the wild-type MYBPC3 gene without evidence of off-target mutations. The efficiency, accuracy and safety of the approach presented suggest that it has potential to be used for the correction of heritable mutations in human embryos by complementing preimplantation genetic diagnosis. However, much remains to be considered before clinical applications, including the reproducibility of the technique with other heterozygous mutations.