Sophie L.V.M. Stroeks MD , Michiel T.H.M. Henkens MD, PhD , Fernando Dominguez MD, PhD , Marco Merlo MD , Debby M.E.I. Hellebrekers PhD , Esther Gonzalez-Lopez MD, PhD , Matteo dal Ferro MD , Juan Pablo Ochoa MD, PhD , Francesco Venturelli MD , Godelieve R.F. Claes PhD , Max F.G.H.M. Venner MD , Ingrid P.C. Krapels MD, PhD , Els K. Vanhoutte MD, PhD , Pieter van Paassen MD, PhD , Arthur van den Wijngaard PhD , Maurits A. Sikking MD , Rick van Leeuwen BSc , Myrurgia Abdul Hamid MD , Xiaofei Li MD, PhD , Han G. Brunner MD, PhD , Job A.J. Verdonschot MD, PhD
{"title":"扩张型心肌病和系统性免疫相关疾病患者的基因状况","authors":"Sophie L.V.M. Stroeks MD , Michiel T.H.M. Henkens MD, PhD , Fernando Dominguez MD, PhD , Marco Merlo MD , Debby M.E.I. Hellebrekers PhD , Esther Gonzalez-Lopez MD, PhD , Matteo dal Ferro MD , Juan Pablo Ochoa MD, PhD , Francesco Venturelli MD , Godelieve R.F. Claes PhD , Max F.G.H.M. Venner MD , Ingrid P.C. Krapels MD, PhD , Els K. Vanhoutte MD, PhD , Pieter van Paassen MD, PhD , Arthur van den Wijngaard PhD , Maurits A. Sikking MD , Rick van Leeuwen BSc , Myrurgia Abdul Hamid MD , Xiaofei Li MD, PhD , Han G. Brunner MD, PhD , Job A.J. Verdonschot MD, PhD","doi":"10.1016/j.jchf.2024.08.011","DOIUrl":null,"url":null,"abstract":"<div><h3>Background</h3><div>Systemic immune-mediated diseases (SIDs) are a well-known cause of dilated cardiomyopathy (DCM), a cardiac phenotype influenced by genetic predispositions and environmental factors.</div></div><div><h3>Objectives</h3><div>This study sought to examine if an underlying genetic predisposition is present in patients with DCM and SID.</div></div><div><h3>Methods</h3><div>Genotyped DCM-SID patients (n = 183) were enrolled at 3 European centers. Genetic variants were compared with healthy control subjects (n = 20,917), DCM patients without SID (n = 560), and individuals with a suspicion of an SID (n = 1,333). Clinical outcomes included all-cause mortality, heart failure hospitalization, and life-threatening arrhythmias.</div></div><div><h3>Results</h3><div>The SID diagnosis preceded the DCM diagnosis by 4.8 months (Q1-Q3: −68.4 to +2.4 months). The prevalence of pathogenic/likely pathogenic (P/LP) variants in DCM patients with an SID from the Maastricht cohort was 17.1%, compared with 1.9% in healthy control subjects (<em>P <</em> 0.001). In the Madrid/Trieste cohort, the prevalence was 20.5% (<em>P <</em> 0.001). Truncating variants showed the strongest enrichment (10.7% [OR: 24.5] (Maastricht) and 16% [OR: 116.6 (Madrid/Trieste); both <em>P <</em> 0.001), with truncating <em>TTN</em> (titin) variant (TTNtv) being the most prevalent. Left ventricular ejection fraction at presentation was reduced in TTNtv-SID patients compared with DCM patients with SID without a P/LP (<em>P =</em> 0.016). The presence of a P/LP variant in DCM-SID had no impact on clinical outcomes over a median follow-up of 8.4 years (Q1-Q3: 4.9-12.1 years).</div></div><div><h3>Conclusions</h3><div>One in 6 DCM patients with an SID has an underlying P/LP variant in a DCM-associated gene. This highlights the role of genetic testing in those patients with immune-mediated DCM, and supports the concept that autoimmunity may play a role in unveiling a DCM phenotype in genotype-positive individuals.</div></div>","PeriodicalId":14687,"journal":{"name":"JACC. Heart failure","volume":"13 1","pages":"Pages 133-145"},"PeriodicalIF":10.3000,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Genetic Landscape of Patients With Dilated Cardiomyopathy and a Systemic Immune-Mediated Disease\",\"authors\":\"Sophie L.V.M. Stroeks MD , Michiel T.H.M. Henkens MD, PhD , Fernando Dominguez MD, PhD , Marco Merlo MD , Debby M.E.I. Hellebrekers PhD , Esther Gonzalez-Lopez MD, PhD , Matteo dal Ferro MD , Juan Pablo Ochoa MD, PhD , Francesco Venturelli MD , Godelieve R.F. Claes PhD , Max F.G.H.M. Venner MD , Ingrid P.C. Krapels MD, PhD , Els K. Vanhoutte MD, PhD , Pieter van Paassen MD, PhD , Arthur van den Wijngaard PhD , Maurits A. Sikking MD , Rick van Leeuwen BSc , Myrurgia Abdul Hamid MD , Xiaofei Li MD, PhD , Han G. Brunner MD, PhD , Job A.J. Verdonschot MD, PhD\",\"doi\":\"10.1016/j.jchf.2024.08.011\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<div><h3>Background</h3><div>Systemic immune-mediated diseases (SIDs) are a well-known cause of dilated cardiomyopathy (DCM), a cardiac phenotype influenced by genetic predispositions and environmental factors.</div></div><div><h3>Objectives</h3><div>This study sought to examine if an underlying genetic predisposition is present in patients with DCM and SID.</div></div><div><h3>Methods</h3><div>Genotyped DCM-SID patients (n = 183) were enrolled at 3 European centers. Genetic variants were compared with healthy control subjects (n = 20,917), DCM patients without SID (n = 560), and individuals with a suspicion of an SID (n = 1,333). Clinical outcomes included all-cause mortality, heart failure hospitalization, and life-threatening arrhythmias.</div></div><div><h3>Results</h3><div>The SID diagnosis preceded the DCM diagnosis by 4.8 months (Q1-Q3: −68.4 to +2.4 months). The prevalence of pathogenic/likely pathogenic (P/LP) variants in DCM patients with an SID from the Maastricht cohort was 17.1%, compared with 1.9% in healthy control subjects (<em>P <</em> 0.001). In the Madrid/Trieste cohort, the prevalence was 20.5% (<em>P <</em> 0.001). Truncating variants showed the strongest enrichment (10.7% [OR: 24.5] (Maastricht) and 16% [OR: 116.6 (Madrid/Trieste); both <em>P <</em> 0.001), with truncating <em>TTN</em> (titin) variant (TTNtv) being the most prevalent. Left ventricular ejection fraction at presentation was reduced in TTNtv-SID patients compared with DCM patients with SID without a P/LP (<em>P =</em> 0.016). The presence of a P/LP variant in DCM-SID had no impact on clinical outcomes over a median follow-up of 8.4 years (Q1-Q3: 4.9-12.1 years).</div></div><div><h3>Conclusions</h3><div>One in 6 DCM patients with an SID has an underlying P/LP variant in a DCM-associated gene. This highlights the role of genetic testing in those patients with immune-mediated DCM, and supports the concept that autoimmunity may play a role in unveiling a DCM phenotype in genotype-positive individuals.</div></div>\",\"PeriodicalId\":14687,\"journal\":{\"name\":\"JACC. Heart failure\",\"volume\":\"13 1\",\"pages\":\"Pages 133-145\"},\"PeriodicalIF\":10.3000,\"publicationDate\":\"2025-01-01\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"JACC. 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Genetic Landscape of Patients With Dilated Cardiomyopathy and a Systemic Immune-Mediated Disease
Background
Systemic immune-mediated diseases (SIDs) are a well-known cause of dilated cardiomyopathy (DCM), a cardiac phenotype influenced by genetic predispositions and environmental factors.
Objectives
This study sought to examine if an underlying genetic predisposition is present in patients with DCM and SID.
Methods
Genotyped DCM-SID patients (n = 183) were enrolled at 3 European centers. Genetic variants were compared with healthy control subjects (n = 20,917), DCM patients without SID (n = 560), and individuals with a suspicion of an SID (n = 1,333). Clinical outcomes included all-cause mortality, heart failure hospitalization, and life-threatening arrhythmias.
Results
The SID diagnosis preceded the DCM diagnosis by 4.8 months (Q1-Q3: −68.4 to +2.4 months). The prevalence of pathogenic/likely pathogenic (P/LP) variants in DCM patients with an SID from the Maastricht cohort was 17.1%, compared with 1.9% in healthy control subjects (P < 0.001). In the Madrid/Trieste cohort, the prevalence was 20.5% (P < 0.001). Truncating variants showed the strongest enrichment (10.7% [OR: 24.5] (Maastricht) and 16% [OR: 116.6 (Madrid/Trieste); both P < 0.001), with truncating TTN (titin) variant (TTNtv) being the most prevalent. Left ventricular ejection fraction at presentation was reduced in TTNtv-SID patients compared with DCM patients with SID without a P/LP (P = 0.016). The presence of a P/LP variant in DCM-SID had no impact on clinical outcomes over a median follow-up of 8.4 years (Q1-Q3: 4.9-12.1 years).
Conclusions
One in 6 DCM patients with an SID has an underlying P/LP variant in a DCM-associated gene. This highlights the role of genetic testing in those patients with immune-mediated DCM, and supports the concept that autoimmunity may play a role in unveiling a DCM phenotype in genotype-positive individuals.
期刊介绍:
JACC: Heart Failure publishes crucial findings on the pathophysiology, diagnosis, treatment, and care of heart failure patients. The goal is to enhance understanding through timely scientific communication on disease, clinical trials, outcomes, and therapeutic advances. The Journal fosters interdisciplinary connections with neuroscience, pulmonary medicine, nephrology, electrophysiology, and surgery related to heart failure. It also covers articles on pharmacogenetics, biomarkers, and metabolomics.