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Christopoulou ME, Skandalis SS, Papakonstantinou E, Stolz D, Aletras AJ. WISP1 induces the expression of macrophage migration inhibitory factor in human lung fibroblasts through Src kinases and EGFR-activated signaling pathways. Am J Physiol Cell Physiol 2024; 326:C850-C865. [PMID: 38145300 DOI: 10.1152/ajpcell.00410.2023] [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: 08/27/2023] [Revised: 12/18/2023] [Accepted: 12/18/2023] [Indexed: 12/26/2023]
Abstract
Wnt1-inducible signaling protein 1 (WISP1/CCN4) is a secreted matricellular protein that is implicated in lung and airway remodeling. The macrophage migration inhibitory factor (MIF) is a pleiotropic cytokine that has been associated with chronic lung diseases. In this study, we aimed to investigate the WISP1 signaling pathway and its ability to induce the expression of MIF in primary cultures of fibroblasts from normal human lungs (HLFs). Our results showed that WISP1 significantly stimulated the expression of MIF in a concentration- and time-dependent fashion. In WISP1-induced expression of MIF, αvβ5-integrin and chondroitin sulfate proteoglycans as well as Src tyrosine kinases, MAP kinases, phosphatidylinositol 3-kinase/Akt, PKC, and NF-κB were involved. WISP1-induced expression of MIF was attenuated in the presence of the Src kinase inhibitor PP2 or the MIF tautomerase activity inhibitor ISO-1. Moreover, WISP1 significantly increased the phosphorylation and activation of EGF receptor (EGFR) through transactivation by Src kinases. WISP1 also induced the expression of MIF receptor CD74 and coreceptor CD44, through which MIF exerts its effects on HLFs. In addition, it was found that MIF induced its own expression, as well as its receptors CD74/CD44, acting in an autocrine manner. Finally, WISP1-induced MIF promoted the expression of cyclooxygenase 2, prostaglandin E2, IL-6, and matrix metalloproteinase-2 demonstrating the regulatory role of WISP1-MIF axis in lung inflammation and remodeling involving mainly integrin αvβ5, Src kinases, PKC, NF-κB, and EGFR. The specific signaling pathways involved in WISP1-induced expression of MIF may prove to be excellent candidates for novel targets to control inflammation in chronic lung diseases.NEW & NOTEWORTHY The present study demonstrates for the first time that Wnt1-inducible signaling protein 1 (WISP1) regulates migration inhibitory factor (MIF) expression and activity and identifies the main signaling pathways involved. The newly discovered WISP1-MIF axis may drive lung inflammation and could result in the design of novel targeted therapies in inflammatory lung diseases.
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Affiliation(s)
- Maria-Elpida Christopoulou
- Laboratory of Biochemistry, Department of Chemistry, University of Patras, Patras, Greece
- Clinic of Pneumology, Medical Center-University of Freiburg, Faculty of Medicine, University of Freiburg, Freiburg, Germany
| | - Spyros S Skandalis
- Laboratory of Biochemistry, Department of Chemistry, University of Patras, Patras, Greece
| | - Eleni Papakonstantinou
- Clinic of Pneumology, Medical Center-University of Freiburg, Faculty of Medicine, University of Freiburg, Freiburg, Germany
| | - Daiana Stolz
- Clinic of Pneumology, Medical Center-University of Freiburg, Faculty of Medicine, University of Freiburg, Freiburg, Germany
| | - Alexios J Aletras
- Laboratory of Biochemistry, Department of Chemistry, University of Patras, Patras, Greece
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Xiang J, Cao J, Shen J, Wang X, Liang J, Li X, Zhang L, Tang B. Bioinformatics analysis reveals the potential common genes and immune characteristics between atrial fibrillation and periodontitis. J Periodontal Res 2024; 59:104-118. [PMID: 37971162 DOI: 10.1111/jre.13192] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2023] [Revised: 09/12/2023] [Accepted: 09/21/2023] [Indexed: 11/19/2023]
Abstract
BACKGROUND AND OBJECTIVE Atrial fibrillation (AF) and periodontitis, both classified under chronic inflammatory diseases, share common etiologies, including genetic factors and immune pathways. However, the exact mechanisms are still poorly understood. This study aimed to explore the potential common genes and immune characteristics between AF and periodontitis. METHODS Gene expression datasets for AF and periodontitis were downloaded from the Gene Expression Omnibus (GEO) database. Differential expression analysis was used to identify common genes in the training set. Functional analyses, including Gene Ontology (GO) and Kyoto Encyclopedia of Genes and Genomes (KEGG) pathway enrichment, were conducted to elucidate the underlying mechanisms. Hub genes were further screened based on expression levels, receiver operating characteristic (ROC) curves, and least absolute shrinkage and selection operator (LASSO) regression. Then, based on the expression levels and ROC values of the hub genes in the validation set, the target genes were identified. Finally, immune cell infiltration analysis was performed on the AF and periodontitis datasets in the training set using the "CIBERSORT" R package. The relationships between target genes, infiltrating immune cells, and inflammatory factors were also investigated. In addition, AF susceptibility, atrial fibrosis, inflammatory infiltration, and RGS1 protein expression in rat models of periodontitis were assessed through in vivo electrophysiology experiments, Masson's trichrome staining, hematoxylin-eosin staining, immunohistochemistry, and western blotting, respectively. RESULTS A total of 21 common genes were identified between AF and periodontitis among the differentially expressed genes. After evaluating gene expression levels, ROC curves, and LASSO analysis, four significant genes between AF and periodontitis were identified, namely regulator of G-protein signaling 1 (RGS1), annexin A6 (ANXA6), solute carrier family 27 member 6 (SLC27A6), and ficolin 1 (FCN1). Further validation confirmed that RGS1 was the optimal shared target gene for AF and periodontitis. Immune cell infiltration analysis revealed that neutrophils and T cells play an important role in the pathogenesis of both diseases. RGS1 showed a significant positive correlation with activated memory CD4 T cells and gamma-delta T cells and a negative correlation with CD8 T cells and regulatory T cells in both training sets. Moreover, RGS1 was positively correlated with classical pro-inflammatory cytokines IL1β and IL6. In periodontitis rat models, AF susceptibility, atrial fibrosis, and inflammatory infiltration were significantly increased, and RGS1 expression in the atrial tissue was upregulated. CONCLUSION A common gene between AF and periodontitis, RGS1 appears central in linking the two conditions. Immune and inflammatory responses may underlie the interaction between AF and periodontitis.
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Affiliation(s)
- Jie Xiang
- Xinjiang Key Laboratory of Cardiac Electrophysiology and Remodeling, The First Affiliated Hospital of Xinjiang Medical University, Xinjiang, Urumqi, China
- Department of Pacing and Electrophysiology, The First Affiliated Hospital of Xinjiang Medical University, Xinjiang, Urumqi, China
| | - Jiaru Cao
- Xinjiang Key Laboratory of Cardiac Electrophysiology and Remodeling, The First Affiliated Hospital of Xinjiang Medical University, Xinjiang, Urumqi, China
- Department of Pacing and Electrophysiology, The First Affiliated Hospital of Xinjiang Medical University, Xinjiang, Urumqi, China
| | - Jun Shen
- Xinjiang Key Laboratory of Cardiac Electrophysiology and Remodeling, The First Affiliated Hospital of Xinjiang Medical University, Xinjiang, Urumqi, China
- Department of Pacing and Electrophysiology, The First Affiliated Hospital of Xinjiang Medical University, Xinjiang, Urumqi, China
| | - Xiaoyan Wang
- Xinjiang Key Laboratory of Cardiac Electrophysiology and Remodeling, The First Affiliated Hospital of Xinjiang Medical University, Xinjiang, Urumqi, China
- Department of Pacing and Electrophysiology, The First Affiliated Hospital of Xinjiang Medical University, Xinjiang, Urumqi, China
| | - Junqing Liang
- Xinjiang Key Laboratory of Cardiac Electrophysiology and Remodeling, The First Affiliated Hospital of Xinjiang Medical University, Xinjiang, Urumqi, China
- Department of Pacing and Electrophysiology, The First Affiliated Hospital of Xinjiang Medical University, Xinjiang, Urumqi, China
| | - Xinshang Li
- Department of General and Emergency Dentistry, The First Affiliated Hospital (The Affiliated S Tomato Logical Hospital) of Xinjiang Medical University, Xinjiang, Urumqi, China
| | - Ling Zhang
- Xinjiang Key Laboratory of Cardiac Electrophysiology and Remodeling, The First Affiliated Hospital of Xinjiang Medical University, Xinjiang, Urumqi, China
- Department of Pacing and Electrophysiology, The First Affiliated Hospital of Xinjiang Medical University, Xinjiang, Urumqi, China
| | - Baopeng Tang
- Xinjiang Key Laboratory of Cardiac Electrophysiology and Remodeling, The First Affiliated Hospital of Xinjiang Medical University, Xinjiang, Urumqi, China
- Department of Pacing and Electrophysiology, The First Affiliated Hospital of Xinjiang Medical University, Xinjiang, Urumqi, China
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3
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Li QL, Tang J, Zhao L, Ruze A, Shan XF, Gao XM. The role of CD74 in cardiovascular disease. Front Cardiovasc Med 2023; 9:1049143. [PMID: 36712241 PMCID: PMC9877307 DOI: 10.3389/fcvm.2022.1049143] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2022] [Accepted: 12/21/2022] [Indexed: 01/15/2023] Open
Abstract
Leukocyte differentiation antigen 74 (CD74), also known as invariant chain, is a molecular chaperone of major histocompatibility complex class II (MHC II) molecules involved in antigen presentation. CD74 has recently been shown to be a receptor for the macrophage migration inhibitory factor family proteins (MIF/MIF2). Many studies have revealed that CD74 plays an important role in cardiovascular disease. In this review, we summarize the structure and main functions of CD74 and then focus on the recent research progress on the role of CD74 in cardiovascular diseases. In addition, we also discuss potential treatment strategies that target CD74. Our systematic review of the role of CD74 in cardiovascular disease will fill some knowledge gaps in the field.
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Affiliation(s)
- Qiu-Lin Li
- State Key Laboratory of Pathogenesis, Prevention and Treatment of High Incidence Diseases in Central Asian, Department of Cardiology, The First Affiliated Hospital of Xinjiang Medical University, Ürümqi, China,Xinjiang Key Laboratory of Medical Animal Model Research, Ürümqi, China
| | - Jing Tang
- State Key Laboratory of Pathogenesis, Prevention and Treatment of High Incidence Diseases in Central Asian, Department of Cardiology, The First Affiliated Hospital of Xinjiang Medical University, Ürümqi, China,Xinjiang Key Laboratory of Medical Animal Model Research, Ürümqi, China,Department of Clinical Laboratory, The First Affiliated Hospital of Xinjiang Medical University, Ürümqi, China
| | - Ling Zhao
- State Key Laboratory of Pathogenesis, Prevention and Treatment of High Incidence Diseases in Central Asian, Department of Cardiology, The First Affiliated Hospital of Xinjiang Medical University, Ürümqi, China,Xinjiang Key Laboratory of Medical Animal Model Research, Ürümqi, China
| | - Amanguli Ruze
- State Key Laboratory of Pathogenesis, Prevention and Treatment of High Incidence Diseases in Central Asian, Department of Cardiology, The First Affiliated Hospital of Xinjiang Medical University, Ürümqi, China,Xinjiang Key Laboratory of Medical Animal Model Research, Ürümqi, China
| | - Xue-Feng Shan
- State Key Laboratory of Pathogenesis, Prevention and Treatment of High Incidence Diseases in Central Asian, Department of Cardiology, The First Affiliated Hospital of Xinjiang Medical University, Ürümqi, China,Xinjiang Key Laboratory of Medical Animal Model Research, Ürümqi, China
| | - Xiao-Ming Gao
- State Key Laboratory of Pathogenesis, Prevention and Treatment of High Incidence Diseases in Central Asian, Department of Cardiology, The First Affiliated Hospital of Xinjiang Medical University, Ürümqi, China,Xinjiang Key Laboratory of Medical Animal Model Research, Ürümqi, China,Clinical Medical Research Institute of Xinjiang Medical University, Ürümqi, China,*Correspondence: Xiao-Ming Gao,
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4
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Yao Y, Yang M, Liu D, Zhao Q. Immune remodeling and atrial fibrillation. Front Physiol 2022; 13:927221. [PMID: 35936905 PMCID: PMC9355726 DOI: 10.3389/fphys.2022.927221] [Citation(s) in RCA: 16] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2022] [Accepted: 06/30/2022] [Indexed: 11/13/2022] Open
Abstract
Atrial fibrillation (AF) is a highly prevalent arrhythmia that causes high morbidity and mortality. However, the underlying mechanism of AF has not been fully elucidated. Recent research has suggested that, during AF, the immune system changes considerably and interacts with the environment and cells involved in the initiation and maintenance of AF. This may provide a new direction for research and therapeutic strategies for AF. In this review, we elaborate the concept of immune remodeling based on available data in AF. Then, we highlight the complex relationships between immune remodeling and atrial electrical, structural and neural remodeling while also pointing out some research gaps in these field. Finally, we discuss several potential immunomodulatory treatments for AF. Although the heterogeneity of existing evidence makes it ambiguous to extrapolate immunomodulatory treatments for AF into the clinical practice, immune remodeling is still an evolving concept in AF pathophysiology and further studies within this field are likely to provide effective therapies for AF.
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Affiliation(s)
- Yajun Yao
- Department of Cardiology, Renmin Hospital of Wuhan University, Wuhan, China
- Cardiovascular Research Institute of Wuhan University, Wuhan, China
- Hubei Key Laboratory of Cardiology, Wuhan, China
| | - Mei Yang
- Department of Cardiology, Renmin Hospital of Wuhan University, Wuhan, China
- Cardiovascular Research Institute of Wuhan University, Wuhan, China
- Hubei Key Laboratory of Cardiology, Wuhan, China
| | - Dishiwen Liu
- Department of Cardiology, Renmin Hospital of Wuhan University, Wuhan, China
- Cardiovascular Research Institute of Wuhan University, Wuhan, China
- Hubei Key Laboratory of Cardiology, Wuhan, China
| | - Qingyan Zhao
- Department of Cardiology, Renmin Hospital of Wuhan University, Wuhan, China
- Cardiovascular Research Institute of Wuhan University, Wuhan, China
- Hubei Key Laboratory of Cardiology, Wuhan, China
- *Correspondence: Qingyan Zhao,
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5
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High hydrostatic pressure induces atrial electrical remodeling through angiotensin upregulation mediating FAK/Src pathway activation. J Mol Cell Cardiol 2020; 140:10-21. [PMID: 32006532 DOI: 10.1016/j.yjmcc.2020.01.012] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/14/2019] [Revised: 01/15/2020] [Accepted: 01/27/2020] [Indexed: 01/02/2023]
Abstract
Hypertension is an independent risk factor for atrial fibrillation (AF), although its specific mechanisms remain unclear. Previous research has been focused on cyclic stretch, ignoring the role of high hydrostatic pressure. The present study aimed to explore the effect of high hydrostatic pressure stimulation on electrical remodeling in atrial myocytes and its potential signaling pathways. Experiments were performed on left atrial appendages from patients with chronic AF or sinus rhythm, spontaneously hypertensive rats (SHRs) treated with or without valsartan (10 mg/kg/day) and HL-1 cells were exposed to high hydrostatic pressure using a self-developed device. Whole-cell patch-clamp recordings and western blots demonstrated that the amplitudes of ICa,L, Ito, and IKur were reduced in AF patients with corresponding changes in protein expression. Angiotensin protein levels increased and Ang1-7 decreased, while focal adhesion kinase (FAK) and Src kinase were enhanced in atrial tissue from AF patients and SHRs. After rapid atrial pacing, AF inducibility in SHR was significantly higher, accompanied by a decrease in ICa,L, upregulation of Ito and IKur, and a shortened action potential duration. Angiotensin upregulation and FAK/Src activation in SHR were inhibited by angiotensin type 1 receptor inhibitor valsartan, thus, preventing electrical remodeling and reducing AF susceptibility. These results were verified in HL-1 cells treated with high hydrostatic pressure, and demonstrated that electrical remodeling regulated by the FAK-Src pathway could be modulated by valsartan. The present study indicated that high hydrostatic pressure stimulation increases AF susceptibility by activating the renin-angiotensin system and FAK-Src pathway in atrial myocytes.
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Li X, Xue YM, Guo HM, Deng CY, Peng DW, Yang H, Wei W, Liu Y, Liu FZ, Wang ZY, Zhang MZ, Rao F, Wu SL. High hydrostatic pressure induces atrial electrical remodeling through upregulation of inflammatory cytokines. Life Sci 2019; 242:117209. [PMID: 31870776 DOI: 10.1016/j.lfs.2019.117209] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/02/2019] [Revised: 12/10/2019] [Accepted: 12/18/2019] [Indexed: 01/01/2023]
Abstract
AIMS Hypertension is an independent risk factor for atrial fibrillation (AF). However, the direct effect of hydrostatic pressure on atrial electrical remodeling is unclear. The present study investigated whether hydrostatic pressure is responsible for atrial electrical remodeling and addressed a potential role of inflammation in this pathology. MAIN METHODS Whole-cell patch-clamp recordings and biochemical assays were used to study the regulation and expression of ion channels in left atrial appendages in patients with AF, spontaneously hypertensive rats (SHRs), and atrium-derived cells (HL-1 cells) exposed to standard (0 mmHg) and elevated (20, 40 mmHg) hydrostatic pressure. KEY FINDINGS Both TNF-α and MIF were highly expressed in patients with AF and SHRs. AF inducibility in SHRs was higher after atrial burst pacing, accompanied by a decrease in the L-type calcium current (ICa,L), an increase in the transient outward K+ current (Ito) and ultra-rapid delayed rectifier K+ current (IKur), and a shortened action potential duration (APD), which could be inhibited by atorvastatin. Furthermore, exposure to elevated pressure was associated with electrical remodeling of the HL-1 cells. The peak current density of ICa,L was reduced, while Ito and IKur were increased. Moreover, the expression levels of Kv4.3, Kv1.5, TNF-α, and MIF were upregulated, while the expression of Cav1.2 was downregulated in HL-1 cells after treatment with high hydrostatic pressure (40 mmHg). Atorvastatin alleviated the electrical remodeling and increased inflammatory markers in HL-1 cells induced by high hydrostatic pressure. SIGNIFICANCE Elevated hydrostatic pressure led to atrial electrical remodeling and increased AF susceptibility by upregulating inflammation.
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Affiliation(s)
- Xin Li
- Guangdong Provincial Key Laboratory of Clinical Pharmacology, Department of Cardiology, Guangdong Cardiovascular Institute, Guangzhou 510080, China; Research Center of Medical Sciences, Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences, Guangzhou 510080, China
| | - Yu-Mei Xue
- Guangdong Provincial Key Laboratory of Clinical Pharmacology, Department of Cardiology, Guangdong Cardiovascular Institute, Guangzhou 510080, China; Research Center of Medical Sciences, Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences, Guangzhou 510080, China
| | - Hui-Ming Guo
- Department of Cardiac Surgery, Guangdong Provincial People's Hospital, Guangzhou 510080, China
| | - Chun-Yu Deng
- Guangdong Provincial Key Laboratory of Clinical Pharmacology, Department of Cardiology, Guangdong Cardiovascular Institute, Guangzhou 510080, China; Research Center of Medical Sciences, Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences, Guangzhou 510080, China
| | - De-Wei Peng
- Guangdong Provincial Key Laboratory of Clinical Pharmacology, Department of Cardiology, Guangdong Cardiovascular Institute, Guangzhou 510080, China; Research Center of Medical Sciences, Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences, Guangzhou 510080, China
| | - Hui Yang
- Guangdong Provincial Key Laboratory of Clinical Pharmacology, Department of Cardiology, Guangdong Cardiovascular Institute, Guangzhou 510080, China; Research Center of Medical Sciences, Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences, Guangzhou 510080, China
| | - Wei Wei
- Guangdong Provincial Key Laboratory of Clinical Pharmacology, Department of Cardiology, Guangdong Cardiovascular Institute, Guangzhou 510080, China; Research Center of Medical Sciences, Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences, Guangzhou 510080, China
| | - Yang Liu
- Guangdong Provincial Key Laboratory of Clinical Pharmacology, Department of Cardiology, Guangdong Cardiovascular Institute, Guangzhou 510080, China; Research Center of Medical Sciences, Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences, Guangzhou 510080, China
| | - Fang-Zhou Liu
- Guangdong Provincial Key Laboratory of Clinical Pharmacology, Department of Cardiology, Guangdong Cardiovascular Institute, Guangzhou 510080, China; Research Center of Medical Sciences, Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences, Guangzhou 510080, China
| | - Zhao-Yu Wang
- Guangdong Provincial Key Laboratory of Clinical Pharmacology, Department of Cardiology, Guangdong Cardiovascular Institute, Guangzhou 510080, China; Research Center of Medical Sciences, Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences, Guangzhou 510080, China
| | - Meng-Zhen Zhang
- Research Center of Medical Sciences, Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences, Guangzhou 510080, China
| | - Fang Rao
- Guangdong Provincial Key Laboratory of Clinical Pharmacology, Department of Cardiology, Guangdong Cardiovascular Institute, Guangzhou 510080, China; Research Center of Medical Sciences, Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences, Guangzhou 510080, China.
| | - Shu-Lin Wu
- Guangdong Provincial Key Laboratory of Clinical Pharmacology, Department of Cardiology, Guangdong Cardiovascular Institute, Guangzhou 510080, China; Research Center of Medical Sciences, Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences, Guangzhou 510080, China.
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7
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Xue Y, Deng C, Wei W, Liu F, Yang H, Liu Y, Li X, Wang Z, Kuang S, Wu S, Rao F. Macrophage migration inhibitory factor promotes cardiac fibroblast proliferation through the Src kinase signaling pathway. Mol Med Rep 2017; 17:3425-3431. [DOI: 10.3892/mmr.2017.8261] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2017] [Accepted: 10/30/2017] [Indexed: 11/06/2022] Open
Affiliation(s)
- Yu‑Mei Xue
- Department of Cardiology, Guangdong Cardiovascular Institute, Guangdong Academy of Medical Sciences, Guangzhou, Guangdong 510080, P.R. China
| | - Chun‑Yu Deng
- Guangdong Key Laboratory of Clinical Pharmacology and Medicine, Guangdong Academy of Medical Sciences, Guangzhou, Guangdong 510080, P.R. China
| | - Wei Wei
- Department of Cardiology, Guangdong Cardiovascular Institute, Guangdong Academy of Medical Sciences, Guangzhou, Guangdong 510080, P.R. China
| | - Fang‑Zhou Liu
- Department of Cardiology, Guangdong Cardiovascular Institute, Guangdong Academy of Medical Sciences, Guangzhou, Guangdong 510080, P.R. China
| | - Hui Yang
- Guangdong Key Laboratory of Clinical Pharmacology and Medicine, Guangdong Academy of Medical Sciences, Guangzhou, Guangdong 510080, P.R. China
| | - Yang Liu
- Department of Cardiology, Guangdong Cardiovascular Institute, Guangdong Academy of Medical Sciences, Guangzhou, Guangdong 510080, P.R. China
| | - Xin Li
- Department of Cardiology, Guangdong Cardiovascular Institute, Guangdong Academy of Medical Sciences, Guangzhou, Guangdong 510080, P.R. China
| | - Zhaoyu Wang
- Department of Cardiology, Guangdong Cardiovascular Institute, Guangdong Academy of Medical Sciences, Guangzhou, Guangdong 510080, P.R. China
| | - Su‑Juan Kuang
- Guangdong Key Laboratory of Clinical Pharmacology and Medicine, Guangdong Academy of Medical Sciences, Guangzhou, Guangdong 510080, P.R. China
| | - Shu‑Lin Wu
- Department of Cardiology, Guangdong Cardiovascular Institute, Guangdong Academy of Medical Sciences, Guangzhou, Guangdong 510080, P.R. China
| | - Fang Rao
- Department of Cardiology, Guangdong Cardiovascular Institute, Guangdong Academy of Medical Sciences, Guangzhou, Guangdong 510080, P.R. China
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8
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Rao F, Xue YM, Wei W, Yang H, Liu FZ, Chen SX, Kuang SJ, Zhu JN, Wu SL, Deng CY. Role of tumour necrosis factor-a in the regulation of T-type calcium channel current in HL-1 cells. Clin Exp Pharmacol Physiol 2017; 43:706-11. [PMID: 27119319 DOI: 10.1111/1440-1681.12585] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2016] [Revised: 04/05/2016] [Accepted: 04/24/2016] [Indexed: 11/29/2022]
Abstract
Increasing evidence indicates that inflammation contributes to the initiation and perpetuation of atrial fibrillation (AF). Although tumour necrosis factor (TNF)-α levels are increased in patients with AF, the role of TNF-α in the pathogenesis of AF remains unclear. Besides L-type Ca(2+) currents (IC a,L ), T-type Ca(2+) currents (IC a,T ) also plays an important role in the pathogenesis of AF. This study was designed to use the whole-cell voltage-clamp technique and biochemical assays to explore if TNF-α is involved in the pathogenesis of AF through regulating IC a,T in atrial myocytes. It was found that compared with sinus rhythm (SR) controls, T-type calcium channel (TCC) subunit mRNA levels were decreased, while TNF-α expression levels were increased, in human atrial tissue from patients with AF. In murine atrial myocyte HL-1 cells, after culturing for 24 h, 12.5, 25 and 50 ng/mL TNF-α significantly reduced the protein expression levels of the TCC α1G subunit in a concentration-dependent manner. The peak current was reduced by the application of 12.5 or 25 ng/mL TNF-α in a concentration-dependent manner (from -15.08 ± 1.11 pA/pF in controls to -11.89 ± 0.83 pA/pF and -8.54 ± 1.55 pA/pF in 12.5 or 25 ng/mL TNF-α group respectively). TNF-α application also inhibited voltage-dependent inactivation of IC a,T, shifted the inactivation curve to the left. These results suggest that TNF-α is involved in the pathogenesis of AF, probably via decreasing IC a,T current density in atrium-derived myocytes through impaired channel function and down-regulation of channel protein expression. This pathway thus represents a potential pathogenic mechanism in AF.
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Affiliation(s)
- Fang Rao
- Department of Cardiology, Guangdong Cardiovascular Institute, Guangzhou, China.,Research Centre of Medical Sciences, Guangdong General Hospital, Guangzhou, China.,Guangdong Academy of Medical Sciences, Guangzhou, China
| | - Yu-Mei Xue
- Department of Cardiology, Guangdong Cardiovascular Institute, Guangzhou, China.,Guangdong Academy of Medical Sciences, Guangzhou, China
| | - Wei Wei
- Department of Cardiology, Guangdong Cardiovascular Institute, Guangzhou, China.,Guangdong Academy of Medical Sciences, Guangzhou, China
| | - Hui Yang
- Research Centre of Medical Sciences, Guangdong General Hospital, Guangzhou, China.,Guangdong Academy of Medical Sciences, Guangzhou, China
| | - Fang-Zhou Liu
- Department of Cardiology, Guangdong Cardiovascular Institute, Guangzhou, China.,Guangdong Academy of Medical Sciences, Guangzhou, China
| | - Shao-Xian Chen
- Research Centre of Medical Sciences, Guangdong General Hospital, Guangzhou, China.,Guangdong Academy of Medical Sciences, Guangzhou, China
| | - Su-Juan Kuang
- Research Centre of Medical Sciences, Guangdong General Hospital, Guangzhou, China.,Guangdong Academy of Medical Sciences, Guangzhou, China
| | - Jie-Ning Zhu
- Research Centre of Medical Sciences, Guangdong General Hospital, Guangzhou, China.,Guangdong Academy of Medical Sciences, Guangzhou, China
| | - Shu-Lin Wu
- Department of Cardiology, Guangdong Cardiovascular Institute, Guangzhou, China.,Research Centre of Medical Sciences, Guangdong General Hospital, Guangzhou, China.,Guangdong Academy of Medical Sciences, Guangzhou, China
| | - Chun-Yu Deng
- Department of Cardiology, Guangdong Cardiovascular Institute, Guangzhou, China.,Research Centre of Medical Sciences, Guangdong General Hospital, Guangzhou, China.,Guangdong Academy of Medical Sciences, Guangzhou, China
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9
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Li X, Rao F, Deng CY, Wei W, Liu FZ, Yang H, Wang ZY, Kuang SJ, Chen XY, Xue YM, Wu SL. Involvement of ERK1/2 in Cx43 depression induced by macrophage migration inhibitory factor in atrial myocytes. Clin Exp Pharmacol Physiol 2017; 44:771-778. [PMID: 28429502 DOI: 10.1111/1440-1681.12766] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2016] [Revised: 03/19/2017] [Accepted: 03/31/2017] [Indexed: 11/30/2022]
Affiliation(s)
- Xin Li
- Department of Cardiology; Guangdong Cardiovascular Institute; Guangzhou China
- Guangdong Academy of Medical Sciences; Guangzhou China
| | - Fang Rao
- Department of Cardiology; Guangdong Cardiovascular Institute; Guangzhou China
- Guangdong Academy of Medical Sciences; Guangzhou China
- Research Center of Medical Sciences; Guangdong General Hospital; Guangzhou China
| | - Chun-Yu Deng
- Department of Cardiology; Guangdong Cardiovascular Institute; Guangzhou China
- Guangdong Academy of Medical Sciences; Guangzhou China
- Research Center of Medical Sciences; Guangdong General Hospital; Guangzhou China
| | - Wei Wei
- Department of Cardiology; Guangdong Cardiovascular Institute; Guangzhou China
- Guangdong Academy of Medical Sciences; Guangzhou China
| | - Fang-Zhou Liu
- Department of Cardiology; Guangdong Cardiovascular Institute; Guangzhou China
- Guangdong Academy of Medical Sciences; Guangzhou China
| | - Hui Yang
- Guangdong Academy of Medical Sciences; Guangzhou China
- Research Center of Medical Sciences; Guangdong General Hospital; Guangzhou China
| | - Zhao-Yu Wang
- Department of Cardiology; Guangdong Cardiovascular Institute; Guangzhou China
- Guangdong Academy of Medical Sciences; Guangzhou China
| | - Su-Juan Kuang
- Guangdong Academy of Medical Sciences; Guangzhou China
- Research Center of Medical Sciences; Guangdong General Hospital; Guangzhou China
| | - Xiao-Yan Chen
- Guangdong Academy of Medical Sciences; Guangzhou China
- Research Center of Medical Sciences; Guangdong General Hospital; Guangzhou China
| | - Yu-Mei Xue
- Department of Cardiology; Guangdong Cardiovascular Institute; Guangzhou China
- Guangdong Academy of Medical Sciences; Guangzhou China
| | - Shu-Lin Wu
- Department of Cardiology; Guangdong Cardiovascular Institute; Guangzhou China
- Guangdong Academy of Medical Sciences; Guangzhou China
- Research Center of Medical Sciences; Guangdong General Hospital; Guangzhou China
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Cheng WL, Kao YH, Chen SA, Chen YJ. Pathophysiology of cancer therapy-provoked atrial fibrillation. Int J Cardiol 2016; 219:186-94. [PMID: 27327505 DOI: 10.1016/j.ijcard.2016.06.009] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/13/2016] [Accepted: 06/11/2016] [Indexed: 02/07/2023]
Abstract
Atrial fibrillation (AF) occurs with increased frequency in cancer patients, especially in patients who undergo surgery or chemotherapy. AF disturbs the prognosis of cancer patients and challenges therapeutic outcomes of cancer treatment. Elucidating the mechanisms of cancer-induced AF would help identify specific strategies for preventing AF occurrence. In addition to concurrent risk factors of cancer and AF, cancer surgery, side effects of anticancer agents, and cancer-associated immune responses play critical roles in the genesis of AF. In this review, we provide succinct potential mechanisms of AF genesis in cancer patients.
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Affiliation(s)
- Wan-Li Cheng
- Graduate Institute of Clinical Medicine, College of Medicine, Taipei Medical University, Taipei, Taiwan
| | - Yu-Hsun Kao
- Graduate Institute of Clinical Medicine, College of Medicine, Taipei Medical University, Taipei, Taiwan; Department of Medical Education and Research, Wan Fang Hospital, Taipei Medical University, Taipei, Taiwan
| | - Shih-Ann Chen
- School of Medicine, National Yang-Ming University, Taipei, Taiwan; Division of Cardiology and Cardiovascular Research Center, Taipei Veterans General Hospital, Taipei, Taiwan
| | - Yi-Jen Chen
- Graduate Institute of Clinical Medicine, College of Medicine, Taipei Medical University, Taipei, Taiwan; Division of Cardiovascular Medicine, Department of Internal Medicine, Wan Fang Hospital, Taipei Medical University, Taipei, Taiwan.
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Luo D, Zhuang X, Luo C, Long M, Deng C, Liao X, Wang L. Continuous angiotensin-(1–7) infusion improves myocardial calcium transient and calcium transient alternans in ischemia-induced cardiac dysfunction rats. Biochem Biophys Res Commun 2015; 467:645-50. [DOI: 10.1016/j.bbrc.2015.10.093] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2015] [Accepted: 10/19/2015] [Indexed: 11/28/2022]
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Chen MP, Cabantchik ZI, Chan S, Chan GCF, Cheung YF. Iron overload and apoptosis of HL-1 cardiomyocytes: effects of calcium channel blockade. PLoS One 2014; 9:e112915. [PMID: 25390893 PMCID: PMC4229305 DOI: 10.1371/journal.pone.0112915] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2014] [Accepted: 10/20/2014] [Indexed: 02/03/2023] Open
Abstract
Background Iron overload cardiomyopathy that prevails in some forms of hemosiderosis is caused by excessive deposition of iron into the heart tissue and ensuing damage caused by a raise in labile cell iron. The underlying mechanisms of iron uptake into cardiomyocytes in iron overload condition are still under investigation. Both L-type calcium channels (LTCC) and T-type calcium channels (TTCC) have been proposed to be the main portals of non-transferrinic iron into heart cells, but controversies remain. Here, we investigated the roles of LTCC and TTCC as mediators of cardiac iron overload and cellular damage by using specific Calcium channel blockers as potential suppressors of labile Fe(II) and Fe(III) ingress in cultured cardiomyocytes and ensuing apoptosis. Methods Fe(II) and Fe(III) uptake was assessed by exposing HL-1 cardiomyocytes to iron sources and quantitative real-time fluorescence imaging of cytosolic labile iron with the fluorescent iron sensor calcein while iron-induced apoptosis was quantitatively measured by flow cytometry analysis with Annexin V. The role of calcium channels as routes of iron uptake was assessed by cell pretreatment with specific blockers of LTCC and TTCC. Results Iron entered HL-1 cardiomyocytes in a time- and dose-dependent manner and induced cardiac apoptosis via mitochondria-mediated caspase-3 dependent pathways. Blockade of LTCC but not of TTCC demonstrably inhibited the uptake of ferric but not of ferrous iron. However, neither channel blocker conferred cardiomyocytes with protection from iron-induced apoptosis. Conclusion Our study implicates LTCC as major mediators of Fe(III) uptake into cardiomyocytes exposed to ferric salts but not necessarily as contributors to ensuing apoptosis. Thus, to the extent that apoptosis can be considered a biological indicator of damage, the etiopathology of cardiosiderotic damage that accompanies some forms of hemosiderosis would seem to be unrelated to LTCC or TTCC, but rather to other routes of iron ingress present in heart cells.
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Affiliation(s)
- Mei-pian Chen
- Department of Pediatrics and Adolescent Medicine, The University of Hong Kong, Hong Kong, China
| | - Z. Ioav Cabantchik
- Department of Biological Chemistry, Alexander Silberman Institute of Life Sciences, Hebrew University of Jerusalem, Safra Campus at Givat Ram, Jerusalem, Israel
| | - Shing Chan
- Department of Pediatrics and Adolescent Medicine, The University of Hong Kong, Hong Kong, China
| | - Godfrey Chi-fung Chan
- Department of Pediatrics and Adolescent Medicine, The University of Hong Kong, Hong Kong, China
- * E-mail: (GCFC); (YFC)
| | - Yiu-fai Cheung
- Department of Pediatrics and Adolescent Medicine, The University of Hong Kong, Hong Kong, China
- * E-mail: (GCFC); (YFC)
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Rao F, Deng CY, Zhang QH, Xue YM, Xiao DZ, Kuang SJ, Lin QX, Shan ZX, Liu XY, Zhu JN, Yu XY, Wu SL. Involvement of Src tyrosine kinase and protein kinase C in the expression of macrophage migration inhibitory factor induced by H2O2 in HL-1 mouse cardiac muscle cells. Braz J Med Biol Res 2013; 46:746-51. [PMID: 24036910 PMCID: PMC3854426 DOI: 10.1590/1414-431x20132936] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2013] [Accepted: 06/06/2013] [Indexed: 11/22/2022] Open
Abstract
Macrophage migration inhibitory factor (MIF), a pleiotropic cytokine, plays an
important role in the pathogenesis of atrial fibrillation; however, the upstream
regulation of MIF in atrial myocytes remains unclear. In the present study, we
investigated whether and how MIF is regulated in response to the
renin-angiotensin system and oxidative stress in atrium myocytes (HL-1 cells).
MIF protein and mRNA levels in HL-1 cells were assayed using immunofluorescence,
real-time PCR, and Western blot. The result indicated that MIF was expressed in
the cytoplasm of HL-1 cells. Hydrogen peroxide (H2O2), but
not angiotensin II, stimulated MIF expression in HL-1 cells.
H2O2-induced MIF protein and gene levels increased in
a dose-dependent manner and were completely abolished in the presence of
catalase. H2O2-induced MIF production was completely
inhibited by tyrosine kinase inhibitors genistein and PP1, as well as by protein
kinase C (PKC) inhibitor GF109203X, suggesting that redox-sensitive MIF
production is mediated through tyrosine kinase and PKC-dependent mechanisms in
HL-1 cells. These results suggest that MIF is upregulated by HL-1 cells in
response to redox stress, probably by the activation of Src and PKC.
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Affiliation(s)
- F Rao
- Guangdong Academy of Medical Sciences, Guangdong Cardiovascular Institute, Guangdong General Hospital, Department of Cardiology, Guangzhou, China
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