Yueshen Sun MB , Congting Guo BS , Zhan Chen BS , Junsen Lin BS , Luzi Yang MM , Yueyang Zhang BS , Chenyang Wu BS , Dongyu Zhao PhD , Blake Jardin MS , William T. Pu MD , Mingming Zhao PhD , Erdan Dong MD , Xiaomin Hu PhD , Shuyang Zhang MD , Yuxuan Guo PhD
{"title":"非细胞自主性心肌细胞调控使小鼠 Lmna 相关心脏缺陷的基因补充疗法变得复杂","authors":"Yueshen Sun MB , Congting Guo BS , Zhan Chen BS , Junsen Lin BS , Luzi Yang MM , Yueyang Zhang BS , Chenyang Wu BS , Dongyu Zhao PhD , Blake Jardin MS , William T. Pu MD , Mingming Zhao PhD , Erdan Dong MD , Xiaomin Hu PhD , Shuyang Zhang MD , Yuxuan Guo PhD","doi":"10.1016/j.jacbts.2024.06.004","DOIUrl":null,"url":null,"abstract":"<div><div>The truncating mutations of <em>LMNA</em> are the major causes of cardiomyopathy. Here we studied 3 mouse models that carry germline, cardiomyocyte-specific, or genetic mosaic <em>Lmna</em> truncating mutations. Whereas the germline mutant manifested cardiac maturation defects, cardiomyocyte-specific mutation triggered pathological hypertrophy. In genetic mosaic analysis, no morphological defects were observed. Three adeno-associated virus (AAV) vectors were applied to addback lamin-A in a ubiquitous, cardiomyocyte-specific, or cardiomyocyte-excluded manner. Strikingly, only ubiquitous and cardiomyocyte-excluded AAV vectors mitigated the cardiac defects. Therefore, <em>Lmna</em> regulates cardiac morphology and function via a non-cell-autonomous mechanism. Noncardiomyocytes are key targets in AAV lamin-A therapy for <em>Lmna</em>-associated cardiac defects.</div></div>","PeriodicalId":14831,"journal":{"name":"JACC: Basic to Translational Science","volume":"9 11","pages":"Pages 1308-1325"},"PeriodicalIF":8.4000,"publicationDate":"2024-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Non-Cell-Autonomous Cardiomyocyte Regulation Complicates Gene Supplementation Therapy for Lmna-Associated Cardiac Defects in Mice\",\"authors\":\"Yueshen Sun MB , Congting Guo BS , Zhan Chen BS , Junsen Lin BS , Luzi Yang MM , Yueyang Zhang BS , Chenyang Wu BS , Dongyu Zhao PhD , Blake Jardin MS , William T. Pu MD , Mingming Zhao PhD , Erdan Dong MD , Xiaomin Hu PhD , Shuyang Zhang MD , Yuxuan Guo PhD\",\"doi\":\"10.1016/j.jacbts.2024.06.004\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<div><div>The truncating mutations of <em>LMNA</em> are the major causes of cardiomyopathy. Here we studied 3 mouse models that carry germline, cardiomyocyte-specific, or genetic mosaic <em>Lmna</em> truncating mutations. Whereas the germline mutant manifested cardiac maturation defects, cardiomyocyte-specific mutation triggered pathological hypertrophy. In genetic mosaic analysis, no morphological defects were observed. Three adeno-associated virus (AAV) vectors were applied to addback lamin-A in a ubiquitous, cardiomyocyte-specific, or cardiomyocyte-excluded manner. Strikingly, only ubiquitous and cardiomyocyte-excluded AAV vectors mitigated the cardiac defects. Therefore, <em>Lmna</em> regulates cardiac morphology and function via a non-cell-autonomous mechanism. Noncardiomyocytes are key targets in AAV lamin-A therapy for <em>Lmna</em>-associated cardiac defects.</div></div>\",\"PeriodicalId\":14831,\"journal\":{\"name\":\"JACC: Basic to Translational Science\",\"volume\":\"9 11\",\"pages\":\"Pages 1308-1325\"},\"PeriodicalIF\":8.4000,\"publicationDate\":\"2024-11-01\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"JACC: Basic to Translational Science\",\"FirstCategoryId\":\"3\",\"ListUrlMain\":\"https://www.sciencedirect.com/science/article/pii/S2452302X24002286\",\"RegionNum\":1,\"RegionCategory\":\"医学\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q1\",\"JCRName\":\"CARDIAC & CARDIOVASCULAR SYSTEMS\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"JACC: Basic to Translational Science","FirstCategoryId":"3","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S2452302X24002286","RegionNum":1,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"CARDIAC & CARDIOVASCULAR SYSTEMS","Score":null,"Total":0}
Non-Cell-Autonomous Cardiomyocyte Regulation Complicates Gene Supplementation Therapy for Lmna-Associated Cardiac Defects in Mice
The truncating mutations of LMNA are the major causes of cardiomyopathy. Here we studied 3 mouse models that carry germline, cardiomyocyte-specific, or genetic mosaic Lmna truncating mutations. Whereas the germline mutant manifested cardiac maturation defects, cardiomyocyte-specific mutation triggered pathological hypertrophy. In genetic mosaic analysis, no morphological defects were observed. Three adeno-associated virus (AAV) vectors were applied to addback lamin-A in a ubiquitous, cardiomyocyte-specific, or cardiomyocyte-excluded manner. Strikingly, only ubiquitous and cardiomyocyte-excluded AAV vectors mitigated the cardiac defects. Therefore, Lmna regulates cardiac morphology and function via a non-cell-autonomous mechanism. Noncardiomyocytes are key targets in AAV lamin-A therapy for Lmna-associated cardiac defects.
期刊介绍:
JACC: Basic to Translational Science is an open access journal that is part of the renowned Journal of the American College of Cardiology (JACC). It focuses on advancing the field of Translational Cardiovascular Medicine and aims to accelerate the translation of new scientific discoveries into therapies that improve outcomes for patients with or at risk for Cardiovascular Disease. The journal covers thematic areas such as pre-clinical research, clinical trials, personalized medicine, novel drugs, devices, and biologics, proteomics, genomics, and metabolomics, as well as early phase clinical trial methodology.