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Zhang M, Wang X, Chen W, Liu W, Xin J, Yang D, Zhang Z, Zheng X. Integrated bioinformatics analysis for identifying key genes and pathways in female and male patients with dilated cardiomyopathy. Sci Rep 2023; 13:8977. [PMID: 37268658 DOI: 10.1038/s41598-023-36117-0] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2022] [Accepted: 05/30/2023] [Indexed: 06/04/2023] Open
Abstract
Dilated cardiomyopathy (DCM) is a common cause of heart failure, and males are more likely to suffer from DCM than females. This research aimed at exploring possible DCM-associated genes and their latent regulatory effects in female and male patients. WGCNA analysis found that in the yellow module, 341 and 367 key DEGs were identified in females and males, respectively. A total of 22 hub genes in females and 17 hub genes in males were identified from the PPI networks of the key DEGs based on Metascape database. And twelve and eight potential TFs of the key DEGs were also identified in females and males, respectively. Eight miRNAs of 15 key DEGs were screened in both females and males, which may be differentially expressed in females and males. Dual-luciferase reporter assay demonstrated that miR-21-5P could directly target the key gene MATN2. Furthermore, Sex differences in KEGG pathways were identified. Both KOBAS and GSEA analysis identified 19 significantly enriched pathways related to immune response in both females and males, and the TGF-β signaling pathway was exclusively identified in males. Network pharmacology analysis revealed that seven key DEGs were potential targets for the treatment of DCM, of which the OLR1 gene was only identified in males, the expression levels of the seven genes were verified by RT-PCR. The above results could offer a novel understanding of sex differences in key genes and pathways in DCM progression.
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Affiliation(s)
- Min Zhang
- College of Pharmacy, Henan University of Chinese Medicine, Zhengzhou, 450046, China
| | - Xinzhou Wang
- The Second School of Clinical Medicine, Henan University of Chinese Medicine, Zhengzhou, 450002, China
| | - Wenbo Chen
- School of Medicine, Henan Polytechnic University, Jiaozuo, 454000, Henan, China
| | - Wei Liu
- College of Life Sciences, Henan Agricultural University, Zhengzhou, 450002, China
| | - Jile Xin
- College of Pharmacy, Henan University of Chinese Medicine, Zhengzhou, 450046, China
| | - Debao Yang
- The Second School of Clinical Medicine, Henan University of Chinese Medicine, Zhengzhou, 450002, China
| | - Zhongyuan Zhang
- The Second School of Clinical Medicine, Henan University of Chinese Medicine, Zhengzhou, 450002, China
| | - Xiaoke Zheng
- College of Pharmacy, Henan University of Chinese Medicine, Zhengzhou, 450046, China.
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Sun W, Han B, Cai D, Wang J, Jiang D, Jia H. Differential Expression Profiles and Functional Prediction of Circular RNAs in Pediatric Dilated Cardiomyopathy. Front Mol Biosci 2021; 7:600170. [PMID: 33392258 PMCID: PMC7775584 DOI: 10.3389/fmolb.2020.600170] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/03/2020] [Accepted: 11/03/2020] [Indexed: 12/15/2022] Open
Abstract
Circular RNAs (circRNAs) have emerged as essential regulators and biomarkers in various diseases. To assess the different expression levels of circRNAs in pediatric dilated cardiomyopathy (PDCM) and explore their biological and mechanistic significance, we used RNA microarrays to identify differentially expressed circRNAs between three children diagnosed with PDCM and three healthy age-matched volunteers. The biological function of circRNAs was assessed with a circRNA–microRNA (miRNA)–mRNA interaction network constructed from Gene Ontology and the Kyoto Encyclopedia of Genes and Genomes. Differentially expressed circRNAs were validated by quantitative real-time polymerase chain reaction (qRT-PCR) in 25 children with PDCM and 25 healthy volunteers. We identified 257 up-regulated (fold change ≤ 0.5, P < 0.05) and 899 down-regulated (fold change ≥2, P < 0.05) circRNAs in PDCM patients when compared to healthy volunteers. The qRT-PCR experiments confirmed has_circ_0067735 down-regulation (0.45-fold, P < 0.001), has_circ_0070186 up-regulation (2.82-fold, P < 0.001), and has_circ_0069972 down-regulation (0.50-fold, P < 0.05). A functional analysis of these differentially expressed circRNAs suggests that they are associated with hypertrophy, remodeling, fibrosis, and autoimmunity. CircRNAs have been implicated in PDCM through largely unknown mechanisms. Here we report differentially expressed circRNAs in PDCM patients that may illuminate the mechanistic roles in the etiology of PDCM that could serve as non-invasive diagnostic biomarkers.
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Affiliation(s)
- Wei Sun
- Department of Pediatric Cardiology, Shandong Provincial Hospital, Cheeloo College of Medicine, Shandong University, Jinan, China
| | - Bo Han
- Department of Pediatric Cardiology, Shandong Provincial Hospital, Cheeloo College of Medicine, Shandong University, Jinan, China
| | - Dongxiao Cai
- Department of Pediatric Cardiology, Shandong Provincial Hospital, Cheeloo College of Medicine, Shandong University, Jinan, China
| | - Jing Wang
- Department of Pediatric Cardiology, Shandong Provincial Hospital, Cheeloo College of Medicine, Shandong University, Jinan, China
| | - Diandong Jiang
- Department of Pediatric Cardiology, Shandong Provincial Hospital, Cheeloo College of Medicine, Shandong University, Jinan, China
| | - Hailin Jia
- Department of Pediatric Cardiology, Shandong Provincial Hospital, Cheeloo College of Medicine, Shandong University, Jinan, China
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