Faculty, Staff and Student Publications
Language
English
Publication Date
2-1-2023
Journal
Nature Medicine
DOI
10.1038/s41591-022-02176-5
PMID
36797478
PMCID
PMC10053064
PubMedCentral® Posted Date
3-29-2023
PubMedCentral® Full Text Version
Author MSS
Abstract
The most common form of genetic heart disease is hypertrophic cardiomyopathy (HCM), which is caused by variants in cardiac sarcomeric genes and leads to abnormal heart muscle thickening. Complications of HCM include heart failure, arrhythmia and sudden cardiac death. The dominant-negative c.1208G>A (p.R403Q) pathogenic variant (PV) in β-myosin (MYH7) is a common and well-studied PV that leads to increased cardiac contractility and HCM onset. In this study we identify an adenine base editor and single-guide RNA system that can efficiently correct this human PV with minimal bystander editing and off-target editing at selected sites. We show that delivery of base editing components rescues pathological manifestations of HCM in induced pluripotent stem cell cardiomyocytes derived from patients with HCM and in a humanized mouse model of HCM. Our findings demonstrate the potential of base editing to treat inherited cardiac diseases and prompt the further development of adenine base editor-based therapies to correct monogenic variants causing cardiac disease.
Keywords
Humans, Animals, Mice, Myocytes, Cardiac, Gene Editing, Cardiomyopathy, Hypertrophic, Myocardium, Arrhythmias, Cardiac, Mutation
Published Open-Access
yes
Recommended Citation
Chai, Andreas C; Cui, Miao; Chemello, Francesco; et al., "Base Editing Correction of Hypertrophic Cardiomyopathy in Human Cardiomyocytes and Humanized Mice" (2023). Faculty, Staff and Student Publications. 760.
https://digitalcommons.library.tmc.edu/uthshis_docs/760