Long-term amelioration of an early-onset familial atrial fibrillation model with AAV-mediated in vivo gene therapy

Autor: Handan Hu, Liren Wang, Huiying Li, Hailing Li, Xi Chen, Wenhui Peng, Jun Wang, Yongxiang Zhao, Mingyao Liu, Dali Li
Jazyk: angličtina
Rok vydání: 2022
Předmět:
Zdroj: Fundamental Research, Vol 2, Iss 6, Pp 829-835 (2022)
Druh dokumentu: article
ISSN: 2667-3258
DOI: 10.1016/j.fmre.2022.05.002
Popis: Atrial fibrillation (AF) is a common cardiac disease with high prevalence in the general population. Despite a mild manifestation at the onset stage, it causes serious consequences, including sudden death, when the disease progresses to the late stage. Most available treatments of AF focus on symptom management or alleviation, due to a lack of fundamental knowledge and the fact that considerable variations of AF exist. With the popularisation of the next-generation sequencing technology, several causal genetic factors, including MYL4, have been discovered to contribute to AF, giving hope to developing its gene therapies. In this study, we attempted to treat a previously established rat AF model, which carried Myl4E11K/E11K loss of function mutation, via overexpression of exogenous wild-type Myl4 by AAV9 vectors. Our results showed that delivery of Myl4 expressing AAV9 to postnatal rat models rescued the symptoms of AF, indicating the therapeutic potential that early gene therapy intervention can achieve long-term effects in treating cardiac arrhythmias caused by gene mutations.
Databáze: Directory of Open Access Journals