{"title":"新陈代谢调整的内在机制促进了心脏对压力的恢复能力。","authors":"Matteo Sorge,Giulia Savoré,Andrea Gallo,Davide Acquarone,Mauro Sbroggiò,Silvia Velasco,Federica Zamporlini,Saveria Femminò,Enrico Moiso,Giampaolo Morciano,Elisa Balmas,Andrea Raimondi,Gabrielle Nattenberg,Rachele Stefania,Carlo Tacchetti,Angela Maria Rizzo,Paola Corsetto,Alessandra Ghigo,Emilia Turco,Fiorella Altruda,Lorenzo Silengo,Paolo Pinton,Nadia Raffaelli,Nathan J Sniadecki,Claudia Penna,Pasquale Pagliaro,Emilio Hirsch,Chiara Riganti,Guido Tarone,Alessandro Bertero,Mara Brancaccio","doi":"10.1038/s44321-024-00132-z","DOIUrl":null,"url":null,"abstract":"Defining the molecular mechanisms underlying cardiac resilience is crucial to find effective approaches to protect the heart. A physiologic level of ROS is produced in the heart by fatty acid oxidation, but stressful events can boost ROS and cause mitochondrial dysfunction and cardiac functional impairment. Melusin is a muscle specific chaperone required for myocardial compensatory remodeling during stress. Here we report that Melusin localizes in mitochondria where it binds the mitochondrial trifunctional protein, a key enzyme in fatty acid oxidation, and decreases it activity. Studying both mice and human induced pluripotent stem cell-derived cardiomyocytes, we found that Melusin reduces lipid oxidation in the myocardium and limits ROS generation in steady state and during pressure overload and doxorubicin treatment, preventing mitochondrial dysfunction. Accordingly, the treatment with the lipid oxidation inhibitor Trimetazidine concomitantly with stressful stimuli limits ROS accumulation and prevents long-term heart dysfunction. These findings disclose a physiologic mechanism of metabolic regulation in the heart and demonstrate that a timely restriction of lipid metabolism represents a potential therapeutic strategy to improve cardiac resilience to stress.","PeriodicalId":11597,"journal":{"name":"EMBO Molecular Medicine","volume":null,"pages":null},"PeriodicalIF":9.0000,"publicationDate":"2024-09-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"An intrinsic mechanism of metabolic tuning promotes cardiac resilience to stress.\",\"authors\":\"Matteo Sorge,Giulia Savoré,Andrea Gallo,Davide Acquarone,Mauro Sbroggiò,Silvia Velasco,Federica Zamporlini,Saveria Femminò,Enrico Moiso,Giampaolo Morciano,Elisa Balmas,Andrea Raimondi,Gabrielle Nattenberg,Rachele Stefania,Carlo Tacchetti,Angela Maria Rizzo,Paola Corsetto,Alessandra Ghigo,Emilia Turco,Fiorella Altruda,Lorenzo Silengo,Paolo Pinton,Nadia Raffaelli,Nathan J Sniadecki,Claudia Penna,Pasquale Pagliaro,Emilio Hirsch,Chiara Riganti,Guido Tarone,Alessandro Bertero,Mara Brancaccio\",\"doi\":\"10.1038/s44321-024-00132-z\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"Defining the molecular mechanisms underlying cardiac resilience is crucial to find effective approaches to protect the heart. A physiologic level of ROS is produced in the heart by fatty acid oxidation, but stressful events can boost ROS and cause mitochondrial dysfunction and cardiac functional impairment. Melusin is a muscle specific chaperone required for myocardial compensatory remodeling during stress. Here we report that Melusin localizes in mitochondria where it binds the mitochondrial trifunctional protein, a key enzyme in fatty acid oxidation, and decreases it activity. Studying both mice and human induced pluripotent stem cell-derived cardiomyocytes, we found that Melusin reduces lipid oxidation in the myocardium and limits ROS generation in steady state and during pressure overload and doxorubicin treatment, preventing mitochondrial dysfunction. Accordingly, the treatment with the lipid oxidation inhibitor Trimetazidine concomitantly with stressful stimuli limits ROS accumulation and prevents long-term heart dysfunction. These findings disclose a physiologic mechanism of metabolic regulation in the heart and demonstrate that a timely restriction of lipid metabolism represents a potential therapeutic strategy to improve cardiac resilience to stress.\",\"PeriodicalId\":11597,\"journal\":{\"name\":\"EMBO Molecular Medicine\",\"volume\":null,\"pages\":null},\"PeriodicalIF\":9.0000,\"publicationDate\":\"2024-09-13\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"EMBO Molecular Medicine\",\"FirstCategoryId\":\"3\",\"ListUrlMain\":\"https://doi.org/10.1038/s44321-024-00132-z\",\"RegionNum\":1,\"RegionCategory\":\"医学\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q1\",\"JCRName\":\"MEDICINE, RESEARCH & EXPERIMENTAL\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"EMBO Molecular Medicine","FirstCategoryId":"3","ListUrlMain":"https://doi.org/10.1038/s44321-024-00132-z","RegionNum":1,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"MEDICINE, RESEARCH & EXPERIMENTAL","Score":null,"Total":0}
An intrinsic mechanism of metabolic tuning promotes cardiac resilience to stress.
Defining the molecular mechanisms underlying cardiac resilience is crucial to find effective approaches to protect the heart. A physiologic level of ROS is produced in the heart by fatty acid oxidation, but stressful events can boost ROS and cause mitochondrial dysfunction and cardiac functional impairment. Melusin is a muscle specific chaperone required for myocardial compensatory remodeling during stress. Here we report that Melusin localizes in mitochondria where it binds the mitochondrial trifunctional protein, a key enzyme in fatty acid oxidation, and decreases it activity. Studying both mice and human induced pluripotent stem cell-derived cardiomyocytes, we found that Melusin reduces lipid oxidation in the myocardium and limits ROS generation in steady state and during pressure overload and doxorubicin treatment, preventing mitochondrial dysfunction. Accordingly, the treatment with the lipid oxidation inhibitor Trimetazidine concomitantly with stressful stimuli limits ROS accumulation and prevents long-term heart dysfunction. These findings disclose a physiologic mechanism of metabolic regulation in the heart and demonstrate that a timely restriction of lipid metabolism represents a potential therapeutic strategy to improve cardiac resilience to stress.
期刊介绍:
EMBO Molecular Medicine is an open access journal in the field of experimental medicine, dedicated to science at the interface between clinical research and basic life sciences. In addition to human data, we welcome original studies performed in cells and/or animals provided they demonstrate human disease relevance.
To enhance and better specify our commitment to precision medicine, we have expanded the scope of EMM and call for contributions in the following fields:
Environmental health and medicine, in particular studies in the field of environmental medicine in its functional and mechanistic aspects (exposome studies, toxicology, biomarkers, modeling, and intervention).
Clinical studies and case reports - Human clinical studies providing decisive clues how to control a given disease (epidemiological, pathophysiological, therapeutic, and vaccine studies). Case reports supporting hypothesis-driven research on the disease.
Biomedical technologies - Studies that present innovative materials, tools, devices, and technologies with direct translational potential and applicability (imaging technologies, drug delivery systems, tissue engineering, and AI)