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Updated: Jul 24, 2025
Tissue-specific miRNA Expression Profiling in Mouse Heart Sections Using In Situ Hybridization
Published on: September 15, 2018
Expression profiles and potential functions of microRNAs in heart failure patients from the Uyghur population
Xiangyang Peng1, Kaiyue Zhang2, Zhenjia Yang1
1The 3rd Department of Cardiology, The First Affiliated Hospital of Shihezi University, Shihezi, Xinjiang 832008, PR China; Division of Cardiology, Department of Internal Medicine, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China; NHC Key laboratory of Prevention and Treatment of Central Asia High Incidence Diseases (First Affiliated Hospital, School of Medicine, Shihezi University), Shihezi, Xinjiang 832008, China; Hubei Key Laboratory of Genetics and Molecular Mechanisms of Cardiologic Disorders, Wuhan 430030, Hubei Province, China.
Background And Purpose:
Existing studies have shown that circulating miRNA can be used as biomarkers of heart failure (HF). However, the circulating miRNA expression profile in Uyghur HF patients is unclear. In this study, we identified the miRNA profiles in the plasma of Uyghur HF patients and preliminarily explored their potential functions to provide new ideas for the diagnosis and treatment of HF.
Methods:
Totally, 33 Uyghur patients with HF with reduced ejection fraction (<40%) were included in the HF group and 18 Uyghur patients without HF were included in the control group. First, high-throughput sequencing was used to identify differentially expressed miRNAs in the plasma of heart failure patients (n = 3) and controls (n = 3). Second, the differentially expressed miRNAs were annotated with online software and bioinformatics analysis was used to explore the critical roles of these circulating miRNAs in HF. Moreover, four selected differentially expressed miRNAs were validated by quantitative real-time PCR (qRT-PCR) in 15 controls and 30 HF patients. The diagnostic value of three successfully validated miRNAs for heart failure was assessed using receiver operating characteristic curve (ROC) analysis. Finally, to explore the expression levels of the three successfully validated miRNAs in HF hearts, thoracic aortic constriction (TAC) mice models were constructed and their expression in mice hearts was detected by qRT-PCR.
Results:
Sixty-three differentially expressed miRNAs were identified by high-throughput sequencing. Of these 63 miRNAs, most were located on chromosome 14, and the OMIM database showed that 14 miRNAs were associated with HF. Gene Ontology (GO) and Kyoto Encyclopedia of Genes and Genomes (KEGG) pathway analyses indicated that the target genes were mostly involved in ion or protein binding, the calcium signaling pathway, the mitogen-activated protein kinase (MAPK) signaling pathway, inositol phosphate metabolism, autophagy, and focal adhesion. Of the four selected miRNAs, hsa-miR-378d, hsa-miR-486-5p and hsa-miR-210-3p were successfully validated in the validation cohort and hsa-miR-210-3p had the highest diagnostic value for HF. Meanwhile, miR-210-3p was found to be significantly upregulated in the hearts of TAC mice.
Conclusion:
A reference set of potential miRNA biomarkers that may be involved in HF is constructed. Our study may provide new ideas for the diagnosis and treatment of HF.
