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Zhang H, Shi J. How can proteomics be incorporated into the management of atrial fibrillation? Expert Rev Proteomics 2024; 21:5-7. [PMID: 38284351 DOI: 10.1080/14789450.2024.2312099] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2023] [Accepted: 12/27/2023] [Indexed: 01/30/2024]
Affiliation(s)
- Haiyu Zhang
- Department of Cardiology, The First Affiliated Hospital, Harbin Medical University, Harbin, China
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He C, Wu X, Lin L, Liu C, Li M, Jiang C, Xu Z, Fang B. Causal relationship between atrial fibrillation and stroke risk: a Mendelian randomization. J Stroke Cerebrovasc Dis 2023; 32:107446. [PMID: 38442074 DOI: 10.1016/j.jstrokecerebrovasdis.2023.107446] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2023] [Revised: 10/10/2023] [Accepted: 10/24/2023] [Indexed: 03/07/2024] Open
Abstract
OBJECTIVES This study aimed to investigate the causal relationship between Atrial Fibrillation (AF) and the risk of Stroke using a Mendelian randomization (MR) approach. METHODS A two-sample MR analysis was conducted using publicly available genome-wide association study (GWAS) summary statistics data. In this analysis, genetic variants associated with AF were used as instrumental variables to estimate the causal effect. The inverse-variance weighted (IVW) method, weighted median estimator, and MR-Egger regression were employed for estimation. Additionally, sensitivity analysis was performed using the leave-one-out method. RESULTS The analysis included 87 single nucleotide polymorphisms (SNPs) associated with AF. The results from the IVW method indicated a positive association between genetic predisposition to AF and the risk of stroke (OR 1.002, 95 % CI 1.001-1.003, P < 0.001). The weighted median and MR-Egger methods showed consistent results (weighted median: OR 1.001, 95 % CI 1.000-1.002, P = 0.034; MR-Egger: OR 1.001, 95 % CI 1.000-1.003, P = 0.086). Sensitivity analysis demonstrated that no individual SNP significantly influenced the causal inference. CONCLUSIONS This study provides evidence of a causal relationship between AF and an elevated risk of stroke. These findings emphasize the significance of managing AF in order to prevent and treat strokes. Additional research is required to better understand the underlying mechanisms of this causal association.
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Affiliation(s)
- Chenming He
- Shaanxi University of Chinese Medicine, Xianyang, China
| | - Xinxin Wu
- Shanghai Skin Disease Hospital, School of Medicine, Tongji University, Shanghai, China
| | - Ling Lin
- Huizhou Hospital of Guangzhou University of Chinese Medicine, Huizhou, China
| | - Changya Liu
- Shanghai University of Traditional Chinese Medicine, Shanghai, China
| | - Min Li
- Shanghai University of Traditional Chinese Medicine, Shanghai, China
| | - Chao Jiang
- The Second Affiliated Hospital of Xi'an Medical University, Xi'an, China
| | - Zhongju Xu
- Shanghai Guanghua Hospital of Integrated Traditional Chinese and Western Medicine, Shanghai, China
| | - Bangjiang Fang
- Longhua Hospital Shanghai University of Traditional Chinese Medicine, Shanghai, China.
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3
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Zhao B, Wang H, Cheng L, Wang M, Li J, Gu T, Shangguan W, Miao S, Wang W, Liu X, Guan S, Liu T, Liang X. Proteomic sequencing analysis in a rat model of atrial fibrosis caused by chronic intermittent hypoxia. J Thorac Dis 2023; 15:5414-5427. [PMID: 37969261 PMCID: PMC10636428 DOI: 10.21037/jtd-23-704] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2023] [Accepted: 09/01/2023] [Indexed: 11/17/2023]
Abstract
Background Atrial fibrosis caused by long-term atrial fibrillation influences the outcomes of clinical treatment. An improved understanding of the mechanisms underlying atrial fibrillation may reveal new therapeutic targets. This study was conducted to analyze the changes in protein levels in the atrial tissue of a rat model of atrial fibrillation based on proteome sequencing. Methods Sprague-Dawley rats were used to develop a model of atrial fibrillation induced by chronic intermittent hypoxia (CIH). Histopathological changes were detected using hematoxylin and eosin staining and Masson's staining, and immunohistochemistry and western blotting for the levels of fibrosis biomarkers. Atrial fibrosis tissue samples were also evaluated by proteome sequencing. Differentially expressed proteins (DEPs) between the CIH and control groups were evaluated in functional assay. The expression levels of several key proteins were validated using western blotting. Results CIH resulted in atrial fibrosis and induced atrial fibrillation. We identified 145 DEPs between the CIH and control groups. These included Myh7, Myl2, Myl3, and Atpla3, which are involved in signaling pathways related to hypertrophic cardiomyopathy, glycerolipid metabolism, and cardiac muscle contraction. Western blotting revealed the upregulation of Myh7, Myl2, and Myl3 and the downregulation of Atpla3 in the CIH group compared with the control group. These results were consistent with the sequencing results. Conclusions Myh7, Myl2, Myl3, and Atpla3 may play key roles in the progression of atrial fibrillation through their involvement in cardiovascular-disease-related signaling pathways.
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Affiliation(s)
- Bo Zhao
- Tianjin Key Laboratory of Ionic-Molecular Function of Cardiovascular Disease, Department of Cardiology, Tianjin Institute of Cardiology, The Second Hospital of Tianjin Medical University, Tianjin, China
- Department of Radiology, The Second Hospital of Tianjin Medical University, Tianjin, China
| | - Hualing Wang
- Tianjin Key Laboratory of Ionic-Molecular Function of Cardiovascular Disease, Department of Cardiology, Tianjin Institute of Cardiology, The Second Hospital of Tianjin Medical University, Tianjin, China
| | - Lijun Cheng
- Tianjin Key Laboratory of Ionic-Molecular Function of Cardiovascular Disease, Department of Cardiology, Tianjin Institute of Cardiology, The Second Hospital of Tianjin Medical University, Tianjin, China
| | - Manman Wang
- Department of Cardiology, Affiliated Hospital of Jining Medical University, Jining, China
| | - Jiao Li
- Department of Cardiology, Tianjin Union Medical Center, Nankai University Affiliated Hospital, Tianjin, China
| | - Tianshu Gu
- Tianjin Key Laboratory of Ionic-Molecular Function of Cardiovascular Disease, Department of Cardiology, Tianjin Institute of Cardiology, The Second Hospital of Tianjin Medical University, Tianjin, China
| | - Wenfeng Shangguan
- Tianjin Key Laboratory of Ionic-Molecular Function of Cardiovascular Disease, Department of Cardiology, Tianjin Institute of Cardiology, The Second Hospital of Tianjin Medical University, Tianjin, China
| | - Shuai Miao
- Tianjin Key Laboratory of Ionic-Molecular Function of Cardiovascular Disease, Department of Cardiology, Tianjin Institute of Cardiology, The Second Hospital of Tianjin Medical University, Tianjin, China
| | - Weiding Wang
- Tianjin Key Laboratory of Ionic-Molecular Function of Cardiovascular Disease, Department of Cardiology, Tianjin Institute of Cardiology, The Second Hospital of Tianjin Medical University, Tianjin, China
| | - Xing Liu
- Tianjin Key Laboratory of Ionic-Molecular Function of Cardiovascular Disease, Department of Cardiology, Tianjin Institute of Cardiology, The Second Hospital of Tianjin Medical University, Tianjin, China
| | - Siyu Guan
- Tianjin Key Laboratory of Ionic-Molecular Function of Cardiovascular Disease, Department of Cardiology, Tianjin Institute of Cardiology, The Second Hospital of Tianjin Medical University, Tianjin, China
| | - Tong Liu
- Tianjin Key Laboratory of Ionic-Molecular Function of Cardiovascular Disease, Department of Cardiology, Tianjin Institute of Cardiology, The Second Hospital of Tianjin Medical University, Tianjin, China
| | - Xue Liang
- Tianjin Key Laboratory of Ionic-Molecular Function of Cardiovascular Disease, Department of Cardiology, Tianjin Institute of Cardiology, The Second Hospital of Tianjin Medical University, Tianjin, China
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4
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Zhou Y, Zha Y, Yang Y, Ma T, Li H, Liang J. S100 proteins in cardiovascular diseases. Mol Med 2023; 29:68. [PMID: 37217870 DOI: 10.1186/s10020-023-00662-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2022] [Accepted: 05/02/2023] [Indexed: 05/24/2023] Open
Abstract
Cardiovascular diseases have become a serious threat to human health and life worldwide and have the highest fatality rate. Therefore, the prevention and treatment of cardiovascular diseases have become a focus for public health experts. The expression of S100 proteins is cell- and tissue-specific; they are implicated in cardiovascular, neurodegenerative, and inflammatory diseases and cancer. This review article discusses the progress in the research on the role of S100 protein family members in cardiovascular diseases. Understanding the mechanisms by which these proteins exert their biological function may provide novel concepts for preventing, treating, and predicting cardiovascular diseases.
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Affiliation(s)
- Yue Zhou
- Medical College, Yangzhou University, Yangzhou, China
| | - Yiwen Zha
- Medical College, Yangzhou University, Yangzhou, China
| | - Yongqi Yang
- Medical College, Yangzhou University, Yangzhou, China
| | - Tan Ma
- Medical College, Yangzhou University, Yangzhou, China
- Institute of Translational Medicine, Medical College, Yangzhou University, Yangzhou, 225001, Jiangsu, China
| | - Hongliang Li
- Medical College, Yangzhou University, Yangzhou, China.
- Institute of Translational Medicine, Medical College, Yangzhou University, Yangzhou, 225001, Jiangsu, China.
| | - Jingyan Liang
- Medical College, Yangzhou University, Yangzhou, China.
- Institute of Translational Medicine, Medical College, Yangzhou University, Yangzhou, 225001, Jiangsu, China.
- Jiangsu Key Laboratory of Integrated Traditional Chinese and Western Medicine for Prevention and Treatment of Senile Diseases, Yangzhou University, Yangzhou, China.
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5
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Lee PT, Huang MH, Huang TC, Hsu CH, Lin SH, Liu PY. High Burden of Premature Ventricular Complex Increases the Risk of New-Onset Atrial Fibrillation. J Am Heart Assoc 2023; 12:e027674. [PMID: 36789835 PMCID: PMC10111494 DOI: 10.1161/jaha.122.027674] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/16/2023]
Abstract
Background High burden of premature ventricular complex (PVC) leads to increased cardiovascular mortality. A recent nationwide population-based study demonstrated that PVC is associated with an increased risk of atrial fibrillation (AF). However, the relationship between PVC burden and new-onset AF has not been investigated. The purpose of the study is to elucidate whether PVC burden is associated with new-onset AF. Methods and Results We designed a single-center, retrospective, large population-based cohort study to evaluate the role of PVC burden and new-onset AF in Taiwan. Patients who were AF naïve with PVC were divided into the low burden group (<1000/day) and moderate-to-high burden group (≥1000/day) based on the 24-h Holter ECG report. New-onset AF was defined as a new or first detectable event of either a persistent or paroxysmal AF. A total of 16 030 patients who were AF naïve and underwent 24-h Holter ECG monitoring were enrolled in this study, with a mean follow-up time of 973 days. A propensity score-matched analysis demonstrated that the moderate-to-high burden PVC group had a higher risk of developing new-onset AF than that of the low burden PVC group (4.91% versus 2.73%, P<0.001). Multivariate Cox regression analysis showed that moderate-to-high burden of PVC is an independent risk factor for new-onset AF. The Kaplan-Meier analysis demonstrated that patients with moderate-to-high PVC burden were associated with higher risk of new-onset AF (log-rank P<0.001). Conclusions PVC burden is associated with new-onset AF. Patients with moderate-to-high PVC burden are at a higher risk of new-onset AF. Registration URL: https://www.clinicaltrials.gov; Unique identifier: NCT03877614.
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Affiliation(s)
- Po-Tseng Lee
- Institute of Clinical Medicine, College of Medicine, National Cheng Kung University Tainan Taiwan.,Division of Cardiology, Department of Internal Medicine National Cheng Kung University Hospital, College of Medicine, National Cheng Kung University Tainan Taiwan
| | - Mu-Hsian Huang
- Division of Cardiology, Department of Internal Medicine National Cheng Kung University Hospital, College of Medicine, National Cheng Kung University Tainan Taiwan.,Department of Statistics, National Cheng Kung University Tainan Taiwan
| | - Ting-Chung Huang
- Institute of Clinical Medicine, College of Medicine, National Cheng Kung University Tainan Taiwan.,Division of Cardiology, Department of Internal Medicine National Cheng Kung University Hospital, College of Medicine, National Cheng Kung University Tainan Taiwan
| | - Chi-Hui Hsu
- Institute of Clinical Medicine, College of Medicine, National Cheng Kung University Tainan Taiwan.,Biostatistics Consulting Center National Cheng Kung University Hospital, College of Medicine, National Cheng Kung University Tainan Taiwan.,Department of Public Health, College of Medicine National Cheng Kung University Tainan Taiwan
| | - Sheng-Hsian Lin
- Institute of Clinical Medicine, College of Medicine, National Cheng Kung University Tainan Taiwan.,Biostatistics Consulting Center National Cheng Kung University Hospital, College of Medicine, National Cheng Kung University Tainan Taiwan.,Department of Public Health, College of Medicine National Cheng Kung University Tainan Taiwan
| | - Ping-Yen Liu
- Institute of Clinical Medicine, College of Medicine, National Cheng Kung University Tainan Taiwan.,Division of Cardiology, Department of Internal Medicine National Cheng Kung University Hospital, College of Medicine, National Cheng Kung University Tainan Taiwan
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Neutrophil degranulation interconnects over-represented biological processes in atrial fibrillation. Sci Rep 2021; 11:2972. [PMID: 33536523 PMCID: PMC7859227 DOI: 10.1038/s41598-021-82533-5] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2020] [Accepted: 01/18/2021] [Indexed: 01/30/2023] Open
Abstract
Despite our expanding knowledge about the mechanism underlying atrial fibrillation (AF), the interplay between the biological events underlying AF remains incompletely understood. This study aimed to identify the functionally enriched gene-sets in AF and capture their interconnection via pivotal factors, that may drive or be driven by AF. Global abundance of the proteins in the left atrium of AF patients compared to control patients (n = 3/group), and the functionally enriched biological processes in AF were determined by mass-spectrometry and gene set enrichment analysis, respectively. The data were validated in an independent cohort (n = 19-20/group). In AF, the gene-sets of innate immune system, metabolic process, cellular component disassembly and ion homeostasis were up-regulated, while the gene-set of ciliogenesis was down-regulated. The innate immune system was over-represented by neutrophil degranulation, the components of which were extensively shared by other gene-sets altered in AF. In the independent cohort, an activated form of neutrophils was more present in the left atrium of AF patients with the increased gene expression of neutrophil granules. MYH10, required for ciliogenesis, was decreased in the atrial fibroblasts of AF patients. We report the increased neutrophil degranulation appears to play a pivotal role, and affects multiple biological processes altered in AF.
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Ni H, Pan W, Jin Q, Xie Y, Zhang N, Chen K, Lin T, Lin C, Xie Y, Wu J, Ni P, Wu L. Label-free proteomic analysis of serum exosomes from paroxysmal atrial fibrillation patients. Clin Proteomics 2021; 18:1. [PMID: 33407078 PMCID: PMC7789314 DOI: 10.1186/s12014-020-09304-8] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/13/2019] [Accepted: 10/28/2020] [Indexed: 02/07/2023] Open
Abstract
Background Atrial fibrillation (AF) is the most common cardiac heterogeneous rhythm disorder. It represents a major cause of mortality and morbidity, mainly related to embolic events and heart failure. Mechanisms of AF are complex and remain incompletely understood. Recent evidence suggests exosomes are membrane-coated objects released by many cell-types. Their presence in body fluids and the variable surface composition and content render them attractive as a mechanism for potential biomarkers. However, the content of serum exosomes of AF patients has not been fully delineated. Methods In this work, the serum exosomes from AF patients and healthy donors were used to compare changes in the exosome protein content. Exosomes were isolated from serum of AF patients and healthy donors and their purity was confirmed by Western blotting assays and transmission electron microscopy (TEM). Label-free LC–MS/MS quantitative proteomic analysis was applied to analyze protein content of serum exosomes. Results A total of 440 exosomal protein groups were identified, differentially expressed proteins were filtrated with fold change ≥ 2.0 (AF/controls protein abundance ratio ≥ 2 or ≤ 0.5) and p value less than 0.05 (p < 0.05), significantly changed in abundance group contains 39 elevated proteins and 18 reduced proteins, while consistent presence/absence expression profile group contains 40 elevated proteins and 75 reduced proteins. Bioinformatic analysis of differential exosomal proteins confirmed the significant enrichment of components involved in the anticoagulation, complement system and protein folding. Parallel-Reaction Monitoring Relative Quantitative Analysis (PRM) further suggested that AF related to complement system and protein folding. Conclusions These results revealed the composition and potential function of AF serum exosomes, thus providing a new perspective on the complement system and protein folding to AF.
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Affiliation(s)
- Hanwen Ni
- Department of Cardiology, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, 197# Ruijin Rd, Huangpu District, Shanghai, 200025, China
| | - Wenqi Pan
- Department of Cardiology, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, 197# Ruijin Rd, Huangpu District, Shanghai, 200025, China
| | - Qi Jin
- Department of Cardiology, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, 197# Ruijin Rd, Huangpu District, Shanghai, 200025, China
| | - Yucai Xie
- Department of Cardiology, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, 197# Ruijin Rd, Huangpu District, Shanghai, 200025, China
| | - Ning Zhang
- Department of Cardiology, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, 197# Ruijin Rd, Huangpu District, Shanghai, 200025, China
| | - Kang Chen
- Department of Cardiology, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, 197# Ruijin Rd, Huangpu District, Shanghai, 200025, China
| | - Tianyou Lin
- Department of Cardiology, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, 197# Ruijin Rd, Huangpu District, Shanghai, 200025, China
| | - Changjian Lin
- Department of Cardiology, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, 197# Ruijin Rd, Huangpu District, Shanghai, 200025, China
| | - Yun Xie
- Department of Cardiology, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, 197# Ruijin Rd, Huangpu District, Shanghai, 200025, China
| | - Jiemin Wu
- Faculty of Medical Laboratory Science, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, 197# Ruijin Rd, Huangpu District, Shanghai, 200025, China
| | - Peihua Ni
- Faculty of Medical Laboratory Science, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, 197# Ruijin Rd, Huangpu District, Shanghai, 200025, China.
| | - Liqun Wu
- Department of Cardiology, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, 197# Ruijin Rd, Huangpu District, Shanghai, 200025, China.
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Marrocco V, Bogomolovas J, Ehler E, Dos Remedios CG, Yu J, Gao C, Lange S. PKC and PKN in heart disease. J Mol Cell Cardiol 2019; 128:212-226. [PMID: 30742812 PMCID: PMC6408329 DOI: 10.1016/j.yjmcc.2019.01.029] [Citation(s) in RCA: 41] [Impact Index Per Article: 8.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/03/2018] [Revised: 01/30/2019] [Accepted: 01/31/2019] [Indexed: 12/22/2022]
Abstract
The protein kinase C (PKC) and closely related protein kinase N (PKN) families of serine/threonine protein kinases play crucial cellular roles. Both kinases belong to the AGC subfamily of protein kinases that also include the cAMP dependent protein kinase (PKA), protein kinase B (PKB/AKT), protein kinase G (PKG) and the ribosomal protein S6 kinase (S6K). Involvement of PKC family members in heart disease has been well documented over the years, as their activity and levels are mis-regulated in several pathological heart conditions, such as ischemia, diabetic cardiomyopathy, as well as hypertrophic or dilated cardiomyopathy. This review focuses on the regulation of PKCs and PKNs in different pathological heart conditions and on the influences that PKC/PKN activation has on several physiological processes. In addition, we discuss mechanisms by which PKCs and the closely related PKNs are activated and turned-off in hearts, how they regulate cardiac specific downstream targets and pathways, and how their inhibition by small molecules is explored as new therapeutic target to treat cardiomyopathies and heart failure.
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Affiliation(s)
- Valeria Marrocco
- Division of Cardiology, School of Medicine, University of California-San Diego, La Jolla, USA
| | - Julius Bogomolovas
- Division of Cardiology, School of Medicine, University of California-San Diego, La Jolla, USA; Department of Cognitive and Clinical Neuroscience, Central Institute of Mental Health, Medical Faculty Mannheim, Heidelberg University, Mannheim, Germany
| | - Elisabeth Ehler
- Randall Centre for Cell and Molecular Biophysics, School of Basic and Medical Biosciences, School of Cardiovascular Medicine and Sciences, British Heart Foundation Research Excellence Centre, King's College London, New Hunt's House, Guy's Campus, London SE1 1UL, UK
| | | | - Jiayu Yu
- Key Laboratory of Cell Differentiation and Apoptosis of Chinese Ministry of Education, Department of Pathophysiology, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Chen Gao
- Division of Molecular Medicine, Department of Anesthesiology, David Geffen School of Medicine at UCLA, University of California-Los Angeles, Los Angeles, USA.
| | - Stephan Lange
- Division of Cardiology, School of Medicine, University of California-San Diego, La Jolla, USA; University of Gothenburg, Wallenberg Laboratory, Department of Molecular and Clinical Medicine, Institute of Medicine, Gothenburg, Sweden.
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Hu X, Chen L, Wu S, Xu K, Jiang W, Qin M, Zhang Y, Liu X. Integrative Analysis Reveals Key Circular RNA in Atrial Fibrillation. Front Genet 2019; 10:108. [PMID: 30838031 PMCID: PMC6389718 DOI: 10.3389/fgene.2019.00108] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2018] [Accepted: 01/30/2019] [Indexed: 12/12/2022] Open
Abstract
Circular RNAs (circRNAs) are an emerging class of RNA species that may play a critical regulatory role in gene expression control, which can serve as diagnostic biomarkers for many diseases due to their abundant, stable, and cell- or tissue-specific expression. However, the association between circRNAs and atrial fibrillation (AF) is still not clear. In this study, we used RNA sequencing data to identify and quantify the circRNAs. Differential expression analysis of the circRNAs identified 250 up- and 126 down-regulated circRNAs in AF subjects compared with healthy donors, respectively. Gene Ontology (GO) and Kyoto Encyclopedia of Genes and Genomes (KEGG) analysis of the parental genes of the dysregulated circRNAs indicated that the up-regulated parental genes may participate in the process of DNA damage under oxidative stress. Furthermore, to annotate the dysregulated circRNAs, we constructed and merged the competing endogenous RNA (ceRNA) network and protein-protein interaction (PPI) network, respectively. In the merged network, 130 of 246 dysregulated circRNAs were successfully characterized by more than one pathway. Notably, the five circRNAs, including chr9:15474007-15490122, chr16:75445723-75448593, hsa_circ_0007256, chr12:56563313-56563992, and hsa_circ_0003533, showed the highest significance by the enrichment analysis, and four of them were enriched in cytokine-cytokine receptor interaction. These dysregulated circRNAs may mainly participate in biological processes of inflammatory response. In conclusion, the present study identified a set of dysregulated circRNAs, and characterized their potential functions, which may be associated with inflammatory responses in AF. To our knowledge, this is the first study to uncover the association between circRNAs and AF, which not only improves our understanding of the roles of circRNAs in AF, but also provides candidates of potentially functional circRNAs for AF researchers.
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Affiliation(s)
- Xiaofeng Hu
- Department of Cardiology, Shanghai Chest Hospital, Shanghai Jiao Tong University, Shanghai, China
| | - Linhui Chen
- Department of Neurology, Zhejiang Hospital, Hangzhou, China
| | - Shaohui Wu
- Department of Cardiology, Shanghai Chest Hospital, Shanghai Jiao Tong University, Shanghai, China
| | - Kai Xu
- Department of Cardiology, Shanghai Chest Hospital, Shanghai Jiao Tong University, Shanghai, China
| | - Weifeng Jiang
- Department of Cardiology, Shanghai Chest Hospital, Shanghai Jiao Tong University, Shanghai, China
| | - Mu Qin
- Department of Cardiology, Shanghai Chest Hospital, Shanghai Jiao Tong University, Shanghai, China
| | - Yu Zhang
- Department of Cardiology, Shanghai Chest Hospital, Shanghai Jiao Tong University, Shanghai, China
| | - Xu Liu
- Department of Cardiology, Shanghai Chest Hospital, Shanghai Jiao Tong University, Shanghai, China
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10
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Proteomics and transcriptomics in atrial fibrillation. Herzschrittmacherther Elektrophysiol 2018; 29:70-75. [PMID: 29318371 DOI: 10.1007/s00399-017-0551-x] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2017] [Accepted: 12/12/2017] [Indexed: 01/08/2023]
Abstract
Atrial fibrillation (AF) is the most common tachyarrhythmia. AF, due to substantial remodeling processes initiated in the atria, is a typically self-sustaining and progressive disease. Atrial remodeling has been intensively investigated at the molecular level in recent decades. Although the application of "omics" technologies has already significantly contributed to our current understanding of the pathophysiology of AF, the complexity of the latter and the large heterogeneity of AF patients remained a major limitation. With the advent of novel "omics" and by applying integrative approaches, it will be possible to extract more information and push boundaries. The present review will summarize the contribution of transcriptomics and proteomics to our understanding of the pathophysiology of AF.
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11
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Zhao S, Li M, Ju W, Gu L, Zhang F, Chen H, Gu K, Yang B, Chen M. Serum level of transforming growth factor beta 1 is associated with left atrial voltage in patients with chronic atrial fibrillation. Indian Pacing Electrophysiol J 2017; 18:95-99. [PMID: 29155027 PMCID: PMC5986266 DOI: 10.1016/j.ipej.2017.11.001] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2017] [Revised: 11/12/2017] [Accepted: 11/14/2017] [Indexed: 11/26/2022] Open
Abstract
Background Atrial tissue fibrosis can cause electrical or structural remodeling in patients with atrial fibrillation. Transforming growth factor beta 1(TGF-β1) signaling acts as a central role in fibroblast activation. In this report, we aimed to investigate the relationship between serum level of TGF-β1 and mean left atrial voltage in patients with chronic atrial fibrillation (CAF). Methods A total of 16 consecutive adult patients with CAF who underwent catheter ablation were enrolled. Blood samples for measurement of TGF-β1 were collected from periphery veins and coronary sinus before pulmonary vein isolation. The measurement was performed with a commercially available ELISA kit. Cardiac indices were measured using echocardiography. The left atrial electroanatomic mapping was performed after pulmonary vein isolation. Results Serum level of TGF-β1 in peripheral blood was higher than that in coronary sinus (p < 0.001). TGF-β1 serum level in coronary sinus negatively correlated with mean left atrial voltage (r = -0.650, p = 0.012), While periphery TGF-β1 level tended to be negatively correlated with mean left atrial voltage(r = -0.492, p = 0.053). Patients who treated with angiotensin II receptor antagonists had lower coronary sinus TGF-β1 serum level than those who did not treated with angiotensin II receptor antagonists (p = 0.046). Conclusion Level of TGF-β1 in peripheral serum is higher than that in coronary sinus, and serum level of TGF-β1 in coronary sinus is negatively associated with mean left atrial voltage in patients with CAF, angiotensin II receptor antagonists could affect TGF-β1 serum level.
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Affiliation(s)
- Shilu Zhao
- Cardiology Division, The First Affiliated Hospital of Nanjing Medical University, Nanjing, PR China
| | - Mingfang Li
- Cardiology Division, The First Affiliated Hospital of Nanjing Medical University, Nanjing, PR China
| | - Weizhu Ju
- Cardiology Division, The First Affiliated Hospital of Nanjing Medical University, Nanjing, PR China
| | - Lingyun Gu
- Cardiology Division, The First Affiliated Hospital of Nanjing Medical University, Nanjing, PR China
| | - Fengxiang Zhang
- Cardiology Division, The First Affiliated Hospital of Nanjing Medical University, Nanjing, PR China
| | - Hongwu Chen
- Cardiology Division, The First Affiliated Hospital of Nanjing Medical University, Nanjing, PR China
| | - Kai Gu
- Cardiology Division, The First Affiliated Hospital of Nanjing Medical University, Nanjing, PR China
| | - Bing Yang
- Cardiology Division, The First Affiliated Hospital of Nanjing Medical University, Nanjing, PR China
| | - Minglong Chen
- Cardiology Division, The First Affiliated Hospital of Nanjing Medical University, Nanjing, PR China.
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Liu H, Chen G, Zheng H, Qin H, Liang M, Feng K, Wu Z. Differences in atrial fibrillation‑associated proteins between the left and right atrial appendages from patients with rheumatic mitral valve disease: A comparative proteomic analysis. Mol Med Rep 2016; 14:4232-4242. [PMID: 27667121 PMCID: PMC5101960 DOI: 10.3892/mmr.2016.5776] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2015] [Accepted: 09/15/2016] [Indexed: 01/10/2023] Open
Abstract
The majority of proteomic studies have focused on identifying atrial fibrillation (AF)-associated proteins in the right atrium (RA), thus potential differences in AF-associated proteins between the RA and left atrium (LA) remain unknown. The aim of the present study was to perform proteomic analysis to compare the potential differences in AF-associated proteins between the right atrial appendage (RAA) and left atrial appendage (LAA) in patients with rheumatic mitral valve disease (RMVD). RAA and LAA tissues were obtained from 18 patients with RMVD (10 with AF) during mitral valve replacement surgery. Two-dimensional fluorescence difference gel electrophoresis (2-D DIGE) proteomics analysis was performed using these tissues to identify AF-associated proteins in RAA and LAA. Subsequently, the proteomics data was validated using western blot analysis of nine selected proteins. In RAA, 32 AF-associated proteins were significantly dysregulated (15 upregulated and 17 downregulated). In LAA, 31 AF-associated proteins were significantly dysregulated (13 upregulated and 18 downregulated). Among these AF-associated proteins, 17 were AF-associated in both RAA and LAA, 15 were AF-associated only in RAA, and 14 were AF-associated only in LAA. Amongst the differentially expressed proteins, western blot analysis validated the results for 6 AF-associated proteins, and demonstrated similar distributions in RAA and LAA compared with the 2-D DIGE results. Of these proteins, 2 proteins were AF-associated in both RAA and LAA, 2 were AF-associated only in RAA, and 2 were AF-associated only in LAA. Additionally, the different distributions of AF-associated proteins in the RAA and LAA of patients with RMVD was analyzed, which may reflect the different regulatory mechanisms of the RA and LA in AF. These findings may provide new insights into the underlying molecular mechanisms of AF in patients with RMVD.
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Affiliation(s)
- Hai Liu
- Second Department of Cardiac Surgery, First Affiliated Hospital of Sun Yat‑Sen University, Guangzhou, Guangdong 510080, P.R. China
| | - Guangxian Chen
- Second Department of Cardiac Surgery, First Affiliated Hospital of Sun Yat‑Sen University, Guangzhou, Guangdong 510080, P.R. China
| | - Hongsheng Zheng
- Department of Cardiac Surgery, Henan Provincial Chest Hospital, Zhengzhou, Henan 450008, P.R. China
| | - Han Qin
- Second Department of Cardiac Surgery, First Affiliated Hospital of Sun Yat‑Sen University, Guangzhou, Guangdong 510080, P.R. China
| | - Mengya Liang
- Second Department of Cardiac Surgery, First Affiliated Hospital of Sun Yat‑Sen University, Guangzhou, Guangdong 510080, P.R. China
| | - Kangni Feng
- Second Department of Cardiac Surgery, First Affiliated Hospital of Sun Yat‑Sen University, Guangzhou, Guangdong 510080, P.R. China
| | - Zhongkai Wu
- Second Department of Cardiac Surgery, First Affiliated Hospital of Sun Yat‑Sen University, Guangzhou, Guangdong 510080, P.R. China
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13
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Goldsmith EC, Bradshaw AD, Zile MR, Spinale FG. Myocardial fibroblast-matrix interactions and potential therapeutic targets. J Mol Cell Cardiol 2014; 70:92-9. [PMID: 24472826 PMCID: PMC4005609 DOI: 10.1016/j.yjmcc.2014.01.008] [Citation(s) in RCA: 59] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/23/2013] [Revised: 01/18/2014] [Accepted: 01/20/2014] [Indexed: 01/18/2023]
Abstract
The cardiac extracellular matrix (ECM) is a dynamic structure, adapting to physiological and pathological stresses placed on the myocardium. Deposition and organization of the matrix fall under the purview of cardiac fibroblasts. While often overlooked compared to myocytes, fibroblasts play a critical role in maintaining ECM homeostasis under normal conditions and in response to pathological stimuli assume an activated, myofibroblast phenotype associated with excessive collagen accumulation contributing to impaired cardiac function. Complete appreciation of fibroblast function is hampered by the lack of fibroblast-specific reagents and the heterogeneity of fibroblast precursors. This is further complicated by our ability to dissect the role of myofibroblasts versus fibroblasts in myocardial in remodeling. This review highlights critical points in the regulation of collagen deposition by fibroblasts, the current panel of molecular tools used to identify fibroblasts and the role of fibroblast-matrix interactions in fibroblast function and differentiation into the myofibroblast phenotype. The clinical potential of exploiting differences between fibroblasts and myofibroblasts and using them to target specific fibroblast populations is also discussed. This article is part of a Special Issue entitled "Myocyte-Fibroblast Signalling in Myocardium."
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Affiliation(s)
- Edie C Goldsmith
- Department of Cell Biology and Anatomy, University of South Carolina School of Medicine, USA.
| | - Amy D Bradshaw
- Ralph H. Johnson Department of Veteran's Affairs Medical Center, Charleston, SC, USA; Gazes Cardiac Research Institute, Medical University of South Carolina, Charleston, SC, USA
| | - Michael R Zile
- Ralph H. Johnson Department of Veteran's Affairs Medical Center, Charleston, SC, USA; Gazes Cardiac Research Institute, Medical University of South Carolina, Charleston, SC, USA
| | - Francis G Spinale
- Department of Cell Biology and Anatomy, University of South Carolina School of Medicine, USA; Cardiovascular Translational Research Center, University of South Carolina School of Medicine, USA; WJB Dorn Veteran Affairs Medical Center, Columbia, SC, USA
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14
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Proteomic profiling of the dystrophin-deficient mdx phenocopy of dystrophinopathy-associated cardiomyopathy. BIOMED RESEARCH INTERNATIONAL 2014; 2014:246195. [PMID: 24772416 PMCID: PMC3977469 DOI: 10.1155/2014/246195] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/04/2013] [Accepted: 02/16/2014] [Indexed: 01/07/2023]
Abstract
Cardiorespiratory complications are frequent symptoms of Duchenne muscular dystrophy, a neuromuscular disorder caused by primary abnormalities in the dystrophin gene. Loss of cardiac dystrophin initially leads to changes in dystrophin-associated glycoproteins and subsequently triggers secondarily sarcolemmal disintegration, fibre necrosis, fibrosis, fatty tissue replacement, and interstitial inflammation. This results in progressive cardiac disease, which is the cause of death in a considerable number of patients afflicted with X-linked muscular dystrophy. In order to better define the molecular pathogenesis of this type of cardiomyopathy, several studies have applied mass spectrometry-based proteomics to determine proteome-wide alterations in dystrophinopathy-associated cardiomyopathy. Proteomic studies included both gel-based and label-free mass spectrometric surveys of dystrophin-deficient heart muscle from the established mdx animal model of dystrophinopathy. Comparative cardiac proteomics revealed novel changes in proteins associated with mitochondrial energy metabolism, glycolysis, signaling, iron binding, antibody response, fibre contraction, basal lamina stabilisation, and cytoskeletal organisation. This review summarizes the importance of studying cardiomyopathy within the field of muscular dystrophy research, outlines key features of the mdx heart and its suitability as a model system for studying cardiac pathogenesis, and discusses the impact of recent proteomic findings for exploring molecular and cellular aspects of cardiac abnormalities in inherited muscular dystrophies.
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