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Chu PY, Joshi MS, Horlock D, Kiriazis H, Kaye DM. CXCR4 Antagonism Reduces Cardiac Fibrosis and Improves Cardiac Performance in Dilated Cardiomyopathy. Front Pharmacol 2019; 10:117. [PMID: 30837882 PMCID: PMC6389782 DOI: 10.3389/fphar.2019.00117] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2018] [Accepted: 01/31/2019] [Indexed: 01/05/2023] Open
Abstract
Background: Myocardial fibrosis is a key pathologic finding in the failing heart and is implicated as a cause of increased ventricular stiffness and susceptibility to ventricular arrhythmia. Neurohormonal mediators such as aldosterone and angiotensin II are known to cause fibrosis in experimental models, however, clinical evidence for the reversal of fibrosis with relevant antagonists is limited. Recent studies suggest that inflammatory mediators may contribute to fibrosis. In dilated cardiomyopathy the mechanism for myocardial fibrosis is unclear and its implications on systolic function are not known. Methods and Results: We studied the effect of a highly selective antagonist of SDF-1/CXCR4 signaling, AMD3100, on the development of cardiac fibrosis and cardiac function in mice with dilated cardiomyopathy due to cardiac-specific transgenic overexpression of the stress-kinase, Mst1. AMD3100 significantly attenuated the progression of myocardial fibrosis and this was accompanied by significant improvements in diastolic and systolic performance as evaluated in isolated Langendorff perfused hearts. AMD3100 reduced BNP mRNA expression but did not alter the expression of Ca2+ handling genes. CXCR4 antagonism also reduced the abundance of splenic CD4+ T cells. Conclusion: This study demonstrates that CXCR4 pathway contributes to pathogenesis of cardiac fibrosis in dilated cardiomyopathy, and it represents a new potential therapeutic target in heart failure. The data also demonstrate that anti-fibrotic strategies can improve systolic performance.
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Affiliation(s)
- Po-Yin Chu
- Heart Failure Research Group, Baker Heart and Diabetes Institute, Melbourne, VIC, Australia
| | - Mandar S Joshi
- Heart Failure Research Group, Baker Heart and Diabetes Institute, Melbourne, VIC, Australia
| | - Duncan Horlock
- Heart Failure Research Group, Baker Heart and Diabetes Institute, Melbourne, VIC, Australia
| | - Helen Kiriazis
- Experimental Cardiology Laboratory, Baker Heart and Diabetes Institute, Melbourne, VIC, Australia
| | - David M Kaye
- Heart Failure Research Group, Baker Heart and Diabetes Institute, Melbourne, VIC, Australia.,Department of Medicine, Monash University, Melbourne, VIC, Australia
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Hashimura H, Kimura F, Ishibashi-Ueda H, Morita Y, Higashi M, Nakano S, Iguchi A, Uotani K, Sugimura K, Naito H. Radiologic-Pathologic Correlation of Primary and Secondary Cardiomyopathies: MR Imaging and Histopathologic Findings in Hearts from Autopsy and Transplantation. Radiographics 2017; 37:719-736. [PMID: 28129067 DOI: 10.1148/rg.2017160082] [Citation(s) in RCA: 37] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
RSNA, 2017.
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Affiliation(s)
- Hiromi Hashimura
- From the Departments of Radiology (H.H., Y.M., M.H., H.N.) and Pathology (H.H., H.I.U.), National Cerebral and Cardiovascular Center, 5-7-1 Fujishiro-dai, Suita, Osaka, Japan; Departments of Diagnostic Radiology (F.K.), Cardiology (S.N.), and Cardiovascular Surgery (A.I.), Saitama Medical University International Medical Center, Hidaka, Japan; Department of Radiology, Tenri Hospital, Tenri, Japan (K.U.); and Department of Radiology, Kobe University, Kobe, Japan (K.S.)
| | - Fumiko Kimura
- From the Departments of Radiology (H.H., Y.M., M.H., H.N.) and Pathology (H.H., H.I.U.), National Cerebral and Cardiovascular Center, 5-7-1 Fujishiro-dai, Suita, Osaka, Japan; Departments of Diagnostic Radiology (F.K.), Cardiology (S.N.), and Cardiovascular Surgery (A.I.), Saitama Medical University International Medical Center, Hidaka, Japan; Department of Radiology, Tenri Hospital, Tenri, Japan (K.U.); and Department of Radiology, Kobe University, Kobe, Japan (K.S.)
| | - Hatsue Ishibashi-Ueda
- From the Departments of Radiology (H.H., Y.M., M.H., H.N.) and Pathology (H.H., H.I.U.), National Cerebral and Cardiovascular Center, 5-7-1 Fujishiro-dai, Suita, Osaka, Japan; Departments of Diagnostic Radiology (F.K.), Cardiology (S.N.), and Cardiovascular Surgery (A.I.), Saitama Medical University International Medical Center, Hidaka, Japan; Department of Radiology, Tenri Hospital, Tenri, Japan (K.U.); and Department of Radiology, Kobe University, Kobe, Japan (K.S.)
| | - Yoshiaki Morita
- From the Departments of Radiology (H.H., Y.M., M.H., H.N.) and Pathology (H.H., H.I.U.), National Cerebral and Cardiovascular Center, 5-7-1 Fujishiro-dai, Suita, Osaka, Japan; Departments of Diagnostic Radiology (F.K.), Cardiology (S.N.), and Cardiovascular Surgery (A.I.), Saitama Medical University International Medical Center, Hidaka, Japan; Department of Radiology, Tenri Hospital, Tenri, Japan (K.U.); and Department of Radiology, Kobe University, Kobe, Japan (K.S.)
| | - Masahiro Higashi
- From the Departments of Radiology (H.H., Y.M., M.H., H.N.) and Pathology (H.H., H.I.U.), National Cerebral and Cardiovascular Center, 5-7-1 Fujishiro-dai, Suita, Osaka, Japan; Departments of Diagnostic Radiology (F.K.), Cardiology (S.N.), and Cardiovascular Surgery (A.I.), Saitama Medical University International Medical Center, Hidaka, Japan; Department of Radiology, Tenri Hospital, Tenri, Japan (K.U.); and Department of Radiology, Kobe University, Kobe, Japan (K.S.)
| | - Shintaro Nakano
- From the Departments of Radiology (H.H., Y.M., M.H., H.N.) and Pathology (H.H., H.I.U.), National Cerebral and Cardiovascular Center, 5-7-1 Fujishiro-dai, Suita, Osaka, Japan; Departments of Diagnostic Radiology (F.K.), Cardiology (S.N.), and Cardiovascular Surgery (A.I.), Saitama Medical University International Medical Center, Hidaka, Japan; Department of Radiology, Tenri Hospital, Tenri, Japan (K.U.); and Department of Radiology, Kobe University, Kobe, Japan (K.S.)
| | - Atsushi Iguchi
- From the Departments of Radiology (H.H., Y.M., M.H., H.N.) and Pathology (H.H., H.I.U.), National Cerebral and Cardiovascular Center, 5-7-1 Fujishiro-dai, Suita, Osaka, Japan; Departments of Diagnostic Radiology (F.K.), Cardiology (S.N.), and Cardiovascular Surgery (A.I.), Saitama Medical University International Medical Center, Hidaka, Japan; Department of Radiology, Tenri Hospital, Tenri, Japan (K.U.); and Department of Radiology, Kobe University, Kobe, Japan (K.S.)
| | - Kensuke Uotani
- From the Departments of Radiology (H.H., Y.M., M.H., H.N.) and Pathology (H.H., H.I.U.), National Cerebral and Cardiovascular Center, 5-7-1 Fujishiro-dai, Suita, Osaka, Japan; Departments of Diagnostic Radiology (F.K.), Cardiology (S.N.), and Cardiovascular Surgery (A.I.), Saitama Medical University International Medical Center, Hidaka, Japan; Department of Radiology, Tenri Hospital, Tenri, Japan (K.U.); and Department of Radiology, Kobe University, Kobe, Japan (K.S.)
| | - Kazuro Sugimura
- From the Departments of Radiology (H.H., Y.M., M.H., H.N.) and Pathology (H.H., H.I.U.), National Cerebral and Cardiovascular Center, 5-7-1 Fujishiro-dai, Suita, Osaka, Japan; Departments of Diagnostic Radiology (F.K.), Cardiology (S.N.), and Cardiovascular Surgery (A.I.), Saitama Medical University International Medical Center, Hidaka, Japan; Department of Radiology, Tenri Hospital, Tenri, Japan (K.U.); and Department of Radiology, Kobe University, Kobe, Japan (K.S.)
| | - Hiroaki Naito
- From the Departments of Radiology (H.H., Y.M., M.H., H.N.) and Pathology (H.H., H.I.U.), National Cerebral and Cardiovascular Center, 5-7-1 Fujishiro-dai, Suita, Osaka, Japan; Departments of Diagnostic Radiology (F.K.), Cardiology (S.N.), and Cardiovascular Surgery (A.I.), Saitama Medical University International Medical Center, Hidaka, Japan; Department of Radiology, Tenri Hospital, Tenri, Japan (K.U.); and Department of Radiology, Kobe University, Kobe, Japan (K.S.)
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