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Identification of cardiac-related circulating microRNA profile in human chronic heart failure

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单位: [1]Huazhong Univ Sci & Technol,Tongji Med Coll,Dept Internal Med,Tongji Hosp,Wuhan 430074,Peoples R China [2]Huazhong Univ Sci & Technol,Tongji Med Coll,Inst Hypertens,Tongji Hosp,Wuhan 430074,Peoples R China
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关键词: miRNA profile heart failure tissue circulating Gerotarget

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Background: During chronic heart failure, levels of circulating miRNAs endued with characteristics of diseased cells could be identified as biomarkers. In this study, we sought to identify cardiac-related circulating miRNAs as biomarkers of failing heart. Methods: Total RNA of plasma and heart samples was extracted from 10 normal controls and 14 patients with chronic heart failure. Microarray was applied for miRNA profiles. Validation and organ/tissue distribution analysis was performed by qRT-PCR. In addition, bioinformatics analysis was performed to understand the critical roles of these cardiac-related circulating miRNAs in heart failure. Results: Results showed that levels of more than half of the miRNAs dysregulated in heart failed to show any differences in plasma. Meanwhile, more than 90% of the miRNAs dysregulated in plasma remained stable in heart. Four cardiac fibroblast-derived miRNAs (miR-660-3p, miR-665, miR-1285-3p and miR-4491) were found significantly upregulated in heart and plasma during heart failure. These 4 miRNAs strongly discriminated patients from controls, and 3 of them showed significant correlations with LVEF. Conclusions: This study provides global profiles of miRNAs changes in plasma and failing heart, and using a circulation-tissue miRNA profiling comparison model, we successfully identify 3 cardiac-related circulating miRNAs as potential biomarkers for diagnosis of heart failure.

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出版当年[2015]版:
大类 | 1 区 医学
小类 | 2 区 肿瘤学 3 区 细胞生物学
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出版当年[2014]版:
Q1 ONCOLOGY Q1 CELL BIOLOGY
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通讯机构: [1]Huazhong Univ Sci & Technol,Tongji Med Coll,Dept Internal Med,Tongji Hosp,Wuhan 430074,Peoples R China [2]Huazhong Univ Sci & Technol,Tongji Med Coll,Inst Hypertens,Tongji Hosp,Wuhan 430074,Peoples R China
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