CBS 2019
CBSMD教育中心
中 文

推荐文献

Abstract

Recommended Article

Level of Scientific Evidence Underlying the Current American College of Cardiology/American Heart Association Clinical Practice Guidelines Utilization and programming of an automatic MRI recognition feature for cardiac rhythm management devices In-Hospital Costs and Costs of Complications of Chronic Total Occlusion Angioplasty Insights From the OPEN-CTO Registry Incidence, Predictors, and Outcomes of In-Hospital Percutaneous Coronary Intervention Following Coronary Artery Bypass Grafting Improving the Design of Future PCI Trials for Stable Coronary Artery Disease: JACC State-of-the-Art Review Cholesterol-Lowering Agents Cardiorespiratory Fitness and Mortality in Healthy Men and Women Know Diabetes by Heart: A Partnership to Improve Cardiovascular Outcomes in Type 2 Diabetes Mellitus

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.