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    Plasma microRNAs as biomarkers for Lamin A/C-related dilated cardiomyopathy

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    item_2-s2.0-85049896619.pdf (4.991Kb)
    Date
    2018
    DOI
    10.1007/s00109-018-1666-1

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    Author
    Toro R.
    Blasco-Turrión S.
    Morales-Ponce F.J.
    Gonzalez P.
    Martínez-Camblor P.
    López-Granados A.
    Brugada R.
    Campuzano O.
    Pérez-Serra A.
    Rosa Longobardo F.
    Mangas A.
    Llorente-Cortes V.
    de Gonzalo-Calvo D.
    Abstract
    Abstract: Lamin A/C gene (LMNA)-related familial dilated cardiomyopathy (fDCM) is an aggressive heart disease that often leads to transplantation and sudden death. The aim of our study was to evaluate the circulating microRNA (miRNA) profiles of patients with LMNA pathogenic mutations. The study population (N = 75) included (i) patients with pathogenic LMNA mutations responsible for fDCM (LMNA MUT ), (ii) age- and sex-matched LMNA wild-type controls (LMNA WT control), and (iii) LMNA wild-type idiopathic DCM (iDCM) patients (LMNA WT iDCM). Detailed clinical information was obtained from each participant. A panel of 179 plasma miRNAs was evaluated using RT-qPCR. An initial screening study was performed in LMNA MUT carriers and age-matched LMNA WT controls (N = 16). Forty-four miRNAs were specifically deregulated in LMNA MUT carriers. Ten miRNA candidates were selected for subsequent validation after coexpression analyses and filtered for expression levels and statistical significance. Among the candidates, let-7a-5p, miR-142-3p, miR-145-5p and miR-454-3p levels were significantly increased in LMNA MUT carriers compared to LMNA WT controls and iDCM patients (P < 0.050). These circulating miRNAs, and their combination, were also associated with the presence of pathogenic mutations in regression and ROC analyses. This signature also discriminates between LMNA WT healthy subjects and LMNA MUT carriers who are phenotypically negative for DCM and between LMNA WT iDCM and LMNA-related DCM patients. Correlation and functional enrichment analyses supported their association with the pathophysiology of the disease. We demonstrated for the first time that a specific miRNA signature could serve as a novel non-invasive tool to assist in the diagnosis of patients with fDCM caused by LMNA pathogenic mutations. Key messages: Let-7a-5p, miR-142-3p, miR-145-5p and miR-454-3p are differentially expressed in LMNA MUT carriers.A composite score based on these miRNAs is a biomarker of mutations in the LMNA gene.This miRNA signature can be associated with the pathophysiology of familial DCM.The circulating miRNA profile can assist in the diagnosis of familial DCM. © 2018, Springer-Verlag GmbH Germany, part of Springer Nature.
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    LA UNIVERSIDAD
    • Aseguramiento de Calidad
    • Internacional
    • Vinculación con el Medio
    • Más Transparencia
    • Acreditación
    • Reglamentos e instructivos
    • Reclamos y Sugerencias
    FACULTADES
    • Administración y Negocios
    • Arquitectura y Construcción
    • Ciencias de la Salud
    • Ciencias Sociales y Humanidades
    • Derecho
    • Educación
    • Ingeniería
    INVESTIGACIÓN
    • Estructura
    • Comités de Ética
    • Institutos de Investigación
    • Centros de Investigación
    • Grupos de Investigación
    • Docentes Investigadores
    POSTGRADOS
    • Postgrados
    • Doctorados
    • Magíster
    • Especialidades
    • Escuela Internacional
    • Escuela Alta Dirección