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.
基金:
National Natural Science Foundation of China [91439203, 31571197]
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
推荐引用方式(GB/T 7714):
Li Huaping,Fan Jiahui,Yin Zhongwei,et al.Identification of cardiac-related circulating microRNA profile in human chronic heart failure[J].ONCOTARGET.2016,7(1):33-45.doi:10.18632/oncotarget.6631.
APA:
Li, Huaping,Fan, Jiahui,Yin, Zhongwei,Wang, Feng,Chen, Chen&Wang, Dao Wen.(2016).Identification of cardiac-related circulating microRNA profile in human chronic heart failure.ONCOTARGET,7,(1)
MLA:
Li, Huaping,et al."Identification of cardiac-related circulating microRNA profile in human chronic heart failure".ONCOTARGET 7..1(2016):33-45