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Xu J, Lv M, Ni X. Marein Alleviates Doxorubicin-Induced Cardiotoxicity through FAK/AKT Pathway Modulation while Potentiating its Anticancer Activity. Cardiovasc Toxicol 2024:10.1007/s12012-024-09882-1. [PMID: 38896162 DOI: 10.1007/s12012-024-09882-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/22/2024] [Accepted: 06/10/2024] [Indexed: 06/21/2024]
Abstract
Doxorubicin (DOX) is an effective anticancer agent, yet its clinical utility is hampered by dose-dependent cardiotoxicity. This study explores the cardioprotective potential of Marein (Mar) against DOX-induced cardiac injury and elucidates underlying molecular mechanisms. Neonatal rat cardiomyocytes (NRCMs) and murine models were employed to assess the impact of Mar on DOX-induced cardiotoxicity (DIC). In vitro, cell viability, oxidative stress were evaluated. In vivo, a chronic injection method was employed to induce a DIC mouse model, followed by eight weeks of Mar treatment. Cardiac function, histopathology, and markers of cardiotoxicity were assessed. In vitro, Mar treatment demonstrated significant cardioprotective effects in vivo, as evidenced by improved cardiac function and reduced indicators of cardiac damage. Mechanistically, Mar reduced inflammation, oxidative stress, and apoptosis in cardiomyocytes, potentially via activation of the Focal Adhesion Kinase (FAK)/AKT pathway. Mar also exhibited an anti-ferroptosis effect. Interestingly, Mar did not compromise DOX's efficacy in cancer cells, suggesting a dual benefit in onco-cardiology. Molecular docking studies suggested a potential interaction between Mar and FAK. This study demonstrates Mar's potential as a mitigator of DOX-induced cardiotoxicity, offering a translational perspective on its clinical application. By activating the FAK/AKT pathway, Mar exerts protective effects against DOX-induced cardiomyocyte damage, highlighting its promise in onco-cardiology. Further research is warranted to validate these findings and advance Mar as a potential adjunctive therapy in cancer treatment.
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Affiliation(s)
- Juanjuan Xu
- Department of Cardiology, Huanggang Central Hospital, Huanggang, China.
| | - Manjun Lv
- Department of Otolaryngology-Head and Neck Surgery, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Xiaohong Ni
- Department of Neurology, Huanggang Central Hospital, Huanggang, China
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2
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Al-Ghabkari A, Carlson DA, Haystead TAJ, MacDonald JA. Cooperative involvement of zipper-interacting protein kinase (ZIPK) and the dual-specificity cell-division cycle 14A phosphatase (CDC14A) in vascular smooth muscle cell migration. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2024:2024.03.06.583600. [PMID: 38496458 PMCID: PMC10942413 DOI: 10.1101/2024.03.06.583600] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 03/19/2024]
Abstract
Zipper-interacting protein kinase (ZIPK) is a Ser/Thr protein kinase with regulatory involvement in vascular smooth muscle cell (VSMC) actin polymerization and focal adhesion assembly dynamics. ZIPK silencing can induce cytoskeletal remodeling with disassembly of actin stress fiber networks and coincident loss of focal adhesion kinase (FAK)-pY397 phosphorylation. The link between ZIPK inhibition and FAK phosphorylation is unknown, and critical interactor(s) and regulator(s) are not yet defined. In this study, we further analyzed the ZIPK-FAK relationship in VSMCs. The application of HS38, a selective ZIPK inhibitor, to coronary artery vascular smooth muscle cells (CASMCs) suppressed cell migration, myosin light chain phosphorylation (pT18&pS19) and FAK-pY397 phosphorylation as well. This was associated with the translocation of cytoplasmic FAK to the nucleus. ZIPK inhibition with HS38 was consistently found to suppress the activation of FAK and attenuate the phosphorylation of other focal adhesion protein components (i.e., pCas130, paxillin, ERK). In addition, our study showed a decrease in human cell-division cycle 14A phosphatase (CDC14A) levels with ZIPK-siRNA treatment and increased CDC14A with transient transfection of ZIPK. Proximity ligation assays (PLA) revealed CDC14A localized with ZIPK and FAK. Silencing CDC14A showed an increase of FAK-pY397 phosphorylation. Ultimately, the data presented herein strongly support a regulatory mechanism of FAK in CASMCs by a ZIPK-CDC14A partnership; ZIPK may act as a key signal integrator to control CDC14A and FAK during VSMC migration.
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Neyroud AS, Rolland AD, Lecuyer G, Evrard B, Alary N, Dejucq-Rainsford N, Bujan L, Ravel C, Chalmel F. Sperm DNA methylation dynamics after chemotherapy: a longitudinal study of a patient with testicular germ cell tumor treatment. Andrology 2024; 12:396-409. [PMID: 37354024 DOI: 10.1111/andr.13485] [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: 01/10/2023] [Revised: 05/26/2023] [Accepted: 06/19/2023] [Indexed: 06/25/2023]
Abstract
BACKGROUND An important issue for young men affected by testicular germ cell tumor (TGCT) is how TGCT and its treatment will affect, transiently or permanently, their future reproductive health. Previous studies have reported that xenobiotics can induce changes on human sperm epigenome and have the potential to promote epigenetic alterations in the offspring. OBJECTIVES Here, we report the first longitudinal DNA methylation profiling of frozen sperm from a TGCT patient before and up to 2 years after a bleomycin, etoposide, and cisplatin (BEP) chemotherapy. MATERIALS AND METHODS A TGCT was diagnosed in a 30-year-old patient. A cryopreservation of spermatozoa was proposed before adjuvant BEP treatment. Semen samples were collected before and after chemotherapy at 6, 9, 12, and 24 months. The DNA methylation status was determined by RRBS to detect DNA differentially methylated regions (DMRs). RESULTS The analysis revealed that among the 74 DMRs showing modified methylation status 6 months after therapy, 17 remained altered 24 months after treatment. We next associated DMRs with differentially methylated genes (DMGs), which were subsequently intersected with loci known to be important or expressed during early development. DISCUSSION AND CONCLUSION The consequences of the cancer treatment on the sperm epigenome during the recovery periods are topical issues of increasing significance as epigenetic modifications to the paternal genome may have deleterious effects on the offspring. The altered methylated status of these DMGs important for early development might modify their expression pattern and thus affect their function during key stages of embryogenesis, potentially leading to developmental disorders or miscarriages.
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Affiliation(s)
- Anne-Sophie Neyroud
- Univ Rennes, Inserm, EHESP, Irset (Institut de recherche en santé, environnement et travail) - UMR_S 1085, Rennes, France
- CHU de Rennes, Département de Gynécologie Obstétrique Reproduction-CECOS, Rennes, France
| | - Antoine Dominique Rolland
- Univ Rennes, Inserm, EHESP, Irset (Institut de recherche en santé, environnement et travail) - UMR_S 1085, Rennes, France
| | - Gwendoline Lecuyer
- Univ Rennes, Inserm, EHESP, Irset (Institut de recherche en santé, environnement et travail) - UMR_S 1085, Rennes, France
| | - Bertrand Evrard
- Univ Rennes, Inserm, EHESP, Irset (Institut de recherche en santé, environnement et travail) - UMR_S 1085, Rennes, France
| | - Nathan Alary
- Univ Rennes, Inserm, EHESP, Irset (Institut de recherche en santé, environnement et travail) - UMR_S 1085, Rennes, France
| | - Nathalie Dejucq-Rainsford
- Univ Rennes, Inserm, EHESP, Irset (Institut de recherche en santé, environnement et travail) - UMR_S 1085, Rennes, France
| | - Louis Bujan
- Développement Embryonnaire, Fertilité, Environnement (DEFE), UMR Inserm 1203 Université Toulouse 3 et Montpellier, Toulouse, France
- CECOS, Groupe d'activité de médecine de la reproduction, Hôpital Paule de Viguier, CHU Toulouse, Toulouse, France
| | - Célia Ravel
- Univ Rennes, Inserm, EHESP, Irset (Institut de recherche en santé, environnement et travail) - UMR_S 1085, Rennes, France
- CHU de Rennes, Département de Gynécologie Obstétrique Reproduction-CECOS, Rennes, France
| | - Frédéric Chalmel
- Univ Rennes, Inserm, EHESP, Irset (Institut de recherche en santé, environnement et travail) - UMR_S 1085, Rennes, France
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4
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Feng A, Caro YM, Gardner C, Grischo G, Liang Y, Wickremasinghe PD, Polmann M, Kala M, Marlowe T, Black SM, Knox KS, Wang T. PTK2-associated gene signature could predict the prognosis of IPF. Respir Res 2023; 24:304. [PMID: 38053045 PMCID: PMC10699084 DOI: 10.1186/s12931-023-02582-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2023] [Accepted: 10/26/2023] [Indexed: 12/07/2023] Open
Abstract
Idiopathic pulmonary fibrosis (IPF) is a progressive and fatal lung disease with a poor prognosis. Current/available clinical prediction tools have limited sensitivity and accuracy when evaluating clinical outcomes of IPF. Research has shown that focal adhesion kinase (FAK), produced by the protein tyrosine kinase 2 (PTK2) gene, is crucial in IPF development. FAK activation is a characteristic of lesional fibroblasts; Thus, FAK may be a valuable therapeutic target or prognostic biomarker for IPF. This study aimed to create a gene signature based on PTK2-associated genes and microarray data from blood cells to predict disease prognosis in patients with IPF. PTK2 levels were found to be higher in lung tissues of IPF patients compared to healthy controls, and PTK2 inhibitor Defactinib was found to reduce TGFβ-induced FAK activation and increase α-smooth muscle actin. Although the blood PTK2 levels were higher in IPF patients, blood PTK level alone could not predict IPF prognosis. From 196 PTK2-associated genes, 11 genes were prioritized to create a gene signature (PTK2 molecular signature) and a risk score system using univariate and multivariate Cox regression analysis. Patients were divided into high-risk and low-risk groups using PTK2 molecular signature. Patients in the high-risk group experienced decreased survival rates compared to patients in the low-risk group across all discovery and validation cohorts. Further functional enrichment and immune cell proportion analyses revealed that the PTK2 molecular signature strongly reflected the activation levels of immune pathways and immune cells. These findings suggested that PTK2 is a molecular target of IPF and the PTK2 molecular signature is an effective IPF prognostic biomarker.
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Affiliation(s)
- Anlin Feng
- Center for Translational Science, and Department of Environmental Health, Florida International University, Port St. Lucie, FL, 36987, USA
| | - Yesenia Moreno Caro
- Department of Internal Medicine, University of Arizona, Phoenix, AZ, 85004, USA
| | - Colin Gardner
- Department of Internal Medicine, University of Arizona, Phoenix, AZ, 85004, USA
| | - Garrett Grischo
- Department of Internal Medicine, University of Arizona, Phoenix, AZ, 85004, USA
| | - Ying Liang
- Center for Translational Science, and Department of Environmental Health, Florida International University, Port St. Lucie, FL, 36987, USA
| | - Praveen D Wickremasinghe
- Herbert Wertheim College of Medicine, Florida International University, Port St. Lucie, FL, 33199, USA
| | - Michaela Polmann
- Herbert Wertheim College of Medicine, Florida International University, Port St. Lucie, FL, 33199, USA
| | - Mrinalini Kala
- Department of Internal Medicine, University of Arizona, Phoenix, AZ, 85004, USA
| | - Timothy Marlowe
- Department of Internal Medicine, University of Arizona, Phoenix, AZ, 85004, USA
| | - Stephen M Black
- Center for Translational Science, and Department of Environmental Health, Florida International University, Port St. Lucie, FL, 36987, USA
- Herbert Wertheim College of Medicine, Florida International University, Port St. Lucie, FL, 33199, USA
| | - Kenneth S Knox
- Department of Internal Medicine, University of Arizona, Phoenix, AZ, 85004, USA
| | - Ting Wang
- Center for Translational Science, and Department of Environmental Health, Florida International University, Port St. Lucie, FL, 36987, USA.
- Department of Internal Medicine, University of Arizona, Phoenix, AZ, 85004, USA.
- Herbert Wertheim College of Medicine, Florida International University, Port St. Lucie, FL, 33199, USA.
- Center for Translational Science, Florida International University, 11350 SW Village Pkwy, Port St. Lucie, FL, 34987, USA.
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Nintedanib Inhibits Endothelial Mesenchymal Transition in Bleomycin-Induced Pulmonary Fibrosis via Focal Adhesion Kinase Activity Reduction. Int J Mol Sci 2022; 23:ijms23158193. [PMID: 35897764 PMCID: PMC9332002 DOI: 10.3390/ijms23158193] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2022] [Revised: 07/12/2022] [Accepted: 07/21/2022] [Indexed: 11/17/2022] Open
Abstract
Idiopathic pulmonary fibrosis (IPF) is a progressive interstitial lung disease (ILD). Pulmonary fibroblasts play an important role in the development of IPF. Emerging evidence indicates that pulmonary endothelial cells could be the source of pulmonary fibroblasts through endothelial mesenchymal transition (EndoMT), which contributes to pulmonary fibrosis. EndoMT is a complex process in which endothelial cells lose their expression of endothelial markers and give rise to the characteristics of mesenchymal cells, including morphological fibroblast-like change and the expression of mesenchymal markers, which result in cardiac, renal, and dermal fibroses. Furthermore, EndoMT inhibition attenuates pulmonary fibrosis. Herein, we demonstrate that nintedanib, a tyrosine kinase receptor inhibitor, ameliorated murine bleomycin (BLM)-induced pulmonary fibrosis and suppressed the in vivo and in vitro models of EndoMT. We demonstrated that the activity of focal adhesion kinase (FAK), a key EndoMT regulator, increased in murine lung tissues and human pulmonary microvascular endothelial cells after BLM stimulation. Nintedanib treatment inhibited BLM-induced FAK activation and thus suppressed both in vivo and in vitro BLM-induced EndoMT. Importantly, we found that the VEGF/FAK signaling pathway was involved in nintedanib regulating EndoMT. These novel findings help us understand the mechanism and signaling pathway of EndoMT to further develop more efficacious drugs for IPF treatment.
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Winkle AJ, Nassal DM, Shaheen R, Thomas E, Mohta S, Gratz D, Weinberg SH, Hund TJ. Emerging therapeutic targets for cardiac hypertrophy. Expert Opin Ther Targets 2022; 26:29-40. [PMID: 35076342 PMCID: PMC8885901 DOI: 10.1080/14728222.2022.2031974] [Citation(s) in RCA: 13] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
Abstract
INTRODUCTION Cardiac hypertrophy is associated with adverse outcomes across cardiovascular disease states. Despite strides over the last three decades in identifying molecular and cellular mechanisms driving hypertrophy, the link between pathophysiological stress stimuli and specific myocyte/heart growth profiles remains unclear. Moreover, the optimal strategy for preventing pathology in the setting of hypertrophy remains controversial. AREAS COVERED This review discusses molecular mechanisms underlying cardiac hypertrophy with a focus on factors driving the orientation of myocyte growth and the impact on heart function. We highlight recent work showing a novel role for the spectrin-based cytoskeleton, emphasizing regulation of myocyte dimensions but not hypertrophy per se. Finally, we consider opportunities for directing the orientation of myocyte growth in response to hypertrophic stimuli as an alternative therapeutic approach. Relevant publications on the topic were identified through Pubmed with open-ended search dates. EXPERT OPINION To define new therapeutic avenues, more precision is required when describing changes in myocyte and heart structure/function in response to hypertrophic stimuli. Recent developments in computational modeling of hypertrophic networks, in concert with more refined experimental approaches will catalyze translational discovery to advance the field and further our understanding of cardiac hypertrophy and its relationship with heart disease.
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Affiliation(s)
- Alexander J Winkle
- The Frick Center for Heart Failure and Arrhythmia, The Dorothy M. Davis Heart and Lung Research Institute, the Ohio State University Wexner Medical Center, Columbus, OH, USA.,Department of Biomedical Engineering, College of Engineering, the Ohio State University, Columbus, OH, USA
| | - Drew M Nassal
- The Frick Center for Heart Failure and Arrhythmia, The Dorothy M. Davis Heart and Lung Research Institute, the Ohio State University Wexner Medical Center, Columbus, OH, USA.,Department of Biomedical Engineering, College of Engineering, the Ohio State University, Columbus, OH, USA
| | - Rebecca Shaheen
- The Frick Center for Heart Failure and Arrhythmia, The Dorothy M. Davis Heart and Lung Research Institute, the Ohio State University Wexner Medical Center, Columbus, OH, USA.,Department of Biomedical Engineering, College of Engineering, the Ohio State University, Columbus, OH, USA
| | - Evelyn Thomas
- The Frick Center for Heart Failure and Arrhythmia, The Dorothy M. Davis Heart and Lung Research Institute, the Ohio State University Wexner Medical Center, Columbus, OH, USA.,Department of Biomedical Engineering, College of Engineering, the Ohio State University, Columbus, OH, USA
| | - Shivangi Mohta
- The Frick Center for Heart Failure and Arrhythmia, The Dorothy M. Davis Heart and Lung Research Institute, the Ohio State University Wexner Medical Center, Columbus, OH, USA.,Department of Biomedical Engineering, College of Engineering, the Ohio State University, Columbus, OH, USA
| | - Daniel Gratz
- The Frick Center for Heart Failure and Arrhythmia, The Dorothy M. Davis Heart and Lung Research Institute, the Ohio State University Wexner Medical Center, Columbus, OH, USA.,Department of Biomedical Engineering, College of Engineering, the Ohio State University, Columbus, OH, USA
| | - Seth H Weinberg
- The Frick Center for Heart Failure and Arrhythmia, The Dorothy M. Davis Heart and Lung Research Institute, the Ohio State University Wexner Medical Center, Columbus, OH, USA.,Department of Biomedical Engineering, College of Engineering, the Ohio State University, Columbus, OH, USA
| | - Thomas J Hund
- The Frick Center for Heart Failure and Arrhythmia, The Dorothy M. Davis Heart and Lung Research Institute, the Ohio State University Wexner Medical Center, Columbus, OH, USA.,Department of Biomedical Engineering, College of Engineering, the Ohio State University, Columbus, OH, USA.,Department of Internal Medicine, College of Medicine, the Ohio State University Wexner Medical Center, Columbus, OH, USA
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Cardiomyogenic Differentiation Potential of Human Dilated Myocardium-Derived Mesenchymal Stem/Stromal Cells: The Impact of HDAC Inhibitor SAHA and Biomimetic Matrices. Int J Mol Sci 2021; 22:ijms222312702. [PMID: 34884505 PMCID: PMC8657551 DOI: 10.3390/ijms222312702] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2021] [Revised: 11/19/2021] [Accepted: 11/20/2021] [Indexed: 12/21/2022] Open
Abstract
Dilated cardiomyopathy (DCM) is the most common type of nonischemic cardiomyopathy characterized by left ventricular or biventricular dilation and impaired contraction leading to heart failure and even patients’ death. Therefore, it is important to search for new cardiac tissue regenerating tools. Human mesenchymal stem/stromal cells (hmMSCs) were isolated from post-surgery healthy and DCM myocardial biopsies and their differentiation to the cardiomyogenic direction has been investigated in vitro. Dilated hmMSCs were slightly bigger in size, grew slower, but had almost the same levels of MSC-typical surface markers as healthy hmMSCs. Histone deacetylase (HDAC) activity in dilated hmMSCs was 1.5-fold higher than in healthy ones, which was suppressed by class I and II HDAC inhibitor suberoylanilide hydroxamic acid (SAHA) showing activation of cardiomyogenic differentiation-related genes alpha-cardiac actin (ACTC1) and cardiac troponin T (TNNT2). Both types of hmMSCs cultivated on collagen I hydrogels with hyaluronic acid (HA) or 2-methacryloyloxyethyl phosphorylcholine (MPC) and exposed to SAHA significantly downregulated focal adhesion kinase (PTK2) and activated ACTC1 and TNNT2. Longitudinal cultivation of dilated hmMSC also upregulated alpha-cardiac actin. Thus, HDAC inhibitor SAHA, in combination with collagen I-based hydrogels, can tilt the dilated myocardium hmMSC toward cardiomyogenic direction in vitro with further possible therapeutic application in vivo.
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Yeh CF, Chou C, Yang KC. Mechanotransduction in fibrosis: Mechanisms and treatment targets. CURRENT TOPICS IN MEMBRANES 2021; 87:279-314. [PMID: 34696888 DOI: 10.1016/bs.ctm.2021.07.004] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 03/29/2023]
Abstract
To perceive and integrate the environmental cues, cells and tissues sense and interpret various physical forces like shear, tensile, and compression stress. Mechanotransduction involves the sensing and translation of mechanical forces into biochemical and mechanical signals to guide cell fate and achieve tissue homeostasis. Disruption of this mechanical homeostasis by tissue injury elicits multiple cellular responses leading to pathological matrix deposition and tissue stiffening, and consequent evolution toward pro-inflammatory/pro-fibrotic phenotypes, leading to tissue/organ fibrosis. This review focuses on the molecular mechanisms linking mechanotransduction to fibrosis and uncovers the potential therapeutic targets to halt or resolve fibrosis.
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Affiliation(s)
- Chih-Fan Yeh
- Division of Cardiology, Department of Internal Medicine and Cardiovascular Center, National Taiwan University Hospital, Taipei, Taiwan; Department and Graduate Institute of Pharmacology, National Taiwan University College of Medicine, Taipei, Taiwan
| | - Caroline Chou
- Department and Graduate Institute of Pharmacology, National Taiwan University College of Medicine, Taipei, Taiwan; Washington University in St. Louis, St. Louis, MO, United States
| | - Kai-Chien Yang
- Division of Cardiology, Department of Internal Medicine and Cardiovascular Center, National Taiwan University Hospital, Taipei, Taiwan; Department and Graduate Institute of Pharmacology, National Taiwan University College of Medicine, Taipei, Taiwan; Research Center for Developmental Biology & Regenerative Medicine, National Taiwan University, Taipei, Taiwan; Institute of Biomedical Sciences, Academia Sinica, Taipei, Taiwan.
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9
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Bildyug N. Integrins in cardiac hypertrophy: lessons learned from culture systems. ESC Heart Fail 2021; 8:3634-3642. [PMID: 34232557 PMCID: PMC8497369 DOI: 10.1002/ehf2.13497] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2020] [Revised: 05/16/2021] [Accepted: 06/16/2021] [Indexed: 12/21/2022] Open
Abstract
Heart growth and pathological changes are accompanied by extracellular matrix‐dependent alterations in integrins and integrin‐associated proteins, suggesting their role in heart development and disease. Most of our knowledge on the involvement of integrins in heart pathology is provided by the in vivo experiments, including cardiac hypertrophy models. However, in vivo studies are limited by the complex organization of heart tissue and fail to discern cell types and particular integrins implicated in hypertrophic signalling. This problem is being addressed by isolated cardiomyocyte primary cultures, which have been successfully used in different in vitro disease models. This review aimed to analyse the general approaches to studying integrins and integrin‐associated signalling pathways in cardiac hypertrophy focusing on the in vitro systems. The lessons learned from culture experiments on the models of hypertrophy induced by stretch, stimulating factors, and/or extracellular matrix components are summarized, demonstrating the major involvement of integrin‐mediated signalling in cardiac hypertrophic response and its apparent crosstalk with signal pathways induced by stretch or hypertrophy stimulating factors. The benefits and perspectives of using cardiomyocyte primary culture as a hypertrophy model are discussed.
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Affiliation(s)
- Natalya Bildyug
- Institute of Cytology, Russian Academy of Sciences, Saint Petersburg, 194064, Russia
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10
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Neuregulins: protective and reparative growth factors in multiple forms of cardiovascular disease. Clin Sci (Lond) 2021; 134:2623-2643. [PMID: 33063822 PMCID: PMC7557502 DOI: 10.1042/cs20200230] [Citation(s) in RCA: 29] [Impact Index Per Article: 9.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2020] [Revised: 09/21/2020] [Accepted: 09/22/2020] [Indexed: 02/06/2023]
Abstract
Neuregulins (NRGs) are protein ligands that act through ErbB receptor tyrosine kinases to regulate tissue morphogenesis, plasticity, and adaptive responses to physiologic needs in multiple tissues, including the heart and circulatory system. The role of NRG/ErbB signaling in cardiovascular biology, and how it responds to physiologic and pathologic stresses is a rapidly evolving field. While initial concepts focused on the role that NRG may play in regulating cardiac myocyte responses, including cell survival, growth, adaptation to stress, and proliferation, emerging data support a broader role for NRGs in the regulation of metabolism, inflammation, and fibrosis in response to injury. The constellation of effects modulated by NRGs may account for the findings that two distinct forms of recombinant NRG-1 have beneficial effects on cardiac function in humans with systolic heart failure. NRG-4 has recently emerged as an adipokine with similar potential to regulate cardiovascular responses to inflammation and injury. Beyond systolic heart failure, NRGs appear to have beneficial effects in diastolic heart failure, prevention of atherosclerosis, preventing adverse effects on diabetes on the heart and vasculature, including atherosclerosis, as well as the cardiac dysfunction associated with sepsis. Collectively, this literature supports the further examination of how this developmentally critical signaling system functions and how it might be leveraged to treat cardiovascular disease.
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11
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Abe I, Terabayashi T, Hanada K, Kondo H, Teshima Y, Ishii Y, Miyoshi M, Kira S, Saito S, Tsuchimochi H, Shirai M, Yufu K, Arakane M, Daa T, Thumkeo D, Narumiya S, Takahashi N, Ishizaki T. Disruption of actin dynamics regulated by Rho effector mDia1 attenuates pressure overload-induced cardiac hypertrophic responses and exacerbates dysfunction. Cardiovasc Res 2021; 117:1103-1117. [PMID: 32647865 DOI: 10.1093/cvr/cvaa206] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/14/2020] [Revised: 05/26/2020] [Accepted: 07/02/2020] [Indexed: 12/13/2022] Open
Abstract
AIMS Cardiac hypertrophy is a compensatory response to pressure overload, leading to heart failure. Recent studies have demonstrated that Rho is immediately activated in left ventricles after pressure overload and that Rho signalling plays crucial regulatory roles in actin cytoskeleton rearrangement during cardiac hypertrophic responses. However, the mechanisms by which Rho and its downstream proteins control actin dynamics during hypertrophic responses remain not fully understood. In this study, we identified the pivotal roles of mammalian homologue of Drosophila diaphanous (mDia) 1, a Rho-effector molecule, in pressure overload-induced ventricular hypertrophy. METHODS AND RESULTS Male wild-type (WT) and mDia1-knockout (mDia1KO) mice (10-12 weeks old) were subjected to a transverse aortic constriction (TAC) or sham operation. The heart weight/tibia length ratio, cardiomyocyte cross-sectional area, left ventricular wall thickness, and expression of hypertrophy-specific genes were significantly decreased in mDia1KO mice 3 weeks after TAC, and the mortality rate was higher at 12 weeks. Echocardiography indicated that mDia1 deletion increased the severity of heart failure 8 weeks after TAC. Importantly, we could not observe apparent defects in cardiac hypertrophic responses in mDia3-knockout mice. Microarray analysis revealed that mDia1 was involved in the induction of hypertrophy-related genes, including immediate early genes, in pressure overloaded hearts. Loss of mDia1 attenuated activation of the mechanotransduction pathway in TAC-operated mice hearts. We also found that mDia1 was involved in stretch-induced activation of the mechanotransduction pathway and gene expression of c-fos in neonatal rat ventricular cardiomyocytes (NRVMs). mDia1 regulated the filamentous/globular (F/G)-actin ratio in response to pressure overload in mice. Additionally, increases in nuclear myocardin-related transcription factors and serum response factor were perturbed in response to pressure overload in mDia1KO mice and to mechanical stretch in mDia1 depleted NRVMs. CONCLUSION mDia1, through actin dynamics, is involved in compensatory cardiac hypertrophy in response to pressure overload.
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MESH Headings
- Actin Cytoskeleton/metabolism
- Actin Cytoskeleton/ultrastructure
- Aged
- Aged, 80 and over
- Animals
- Aorta/physiopathology
- Aorta/surgery
- Arterial Pressure
- Cells, Cultured
- Disease Models, Animal
- Disease Progression
- Female
- Formins/genetics
- Formins/metabolism
- Gene Expression Regulation
- Heart Failure/genetics
- Heart Failure/metabolism
- Heart Failure/physiopathology
- Humans
- Hypertrophy, Left Ventricular/genetics
- Hypertrophy, Left Ventricular/metabolism
- Hypertrophy, Left Ventricular/physiopathology
- Hypertrophy, Left Ventricular/prevention & control
- Ligation
- Male
- Mechanotransduction, Cellular
- Mice, Inbred C57BL
- Mice, Knockout
- Middle Aged
- Myocytes, Cardiac/metabolism
- Myocytes, Cardiac/ultrastructure
- Rats, Sprague-Dawley
- Ventricular Dysfunction, Left/genetics
- Ventricular Dysfunction, Left/metabolism
- Ventricular Dysfunction, Left/physiopathology
- Ventricular Function, Left
- Ventricular Remodeling
- Mice
- Rats
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Affiliation(s)
- Ichitaro Abe
- Department of Cardiology and Clinical Examination, Faculty of Medicine, Oita University, 1-1 Idaigaoka, Hasama, Yufu, Oita 879-5593, Japan
| | - Takeshi Terabayashi
- Department of Pharmacology, Faculty of Medicine, Oita University, 1-1 Idaigaoka, Hasama, Yufu, Oita 879-5593, Japan
| | - Katsuhiro Hanada
- Clinical Engineering Research Center, Faculty of Medicine, Oita University, 1-1 Idaigaoka, Hasama, Yufu, Oita, Japan
| | - Hidekazu Kondo
- Department of Cardiology and Clinical Examination, Faculty of Medicine, Oita University, 1-1 Idaigaoka, Hasama, Yufu, Oita 879-5593, Japan
| | - Yasushi Teshima
- Department of Cardiology and Clinical Examination, Faculty of Medicine, Oita University, 1-1 Idaigaoka, Hasama, Yufu, Oita 879-5593, Japan
| | - Yumi Ishii
- Department of Cardiology and Clinical Examination, Faculty of Medicine, Oita University, 1-1 Idaigaoka, Hasama, Yufu, Oita 879-5593, Japan
| | - Miho Miyoshi
- Department of Cardiology and Clinical Examination, Faculty of Medicine, Oita University, 1-1 Idaigaoka, Hasama, Yufu, Oita 879-5593, Japan
| | - Shintaro Kira
- Department of Cardiology and Clinical Examination, Faculty of Medicine, Oita University, 1-1 Idaigaoka, Hasama, Yufu, Oita 879-5593, Japan
| | - Shotaro Saito
- Department of Cardiology and Clinical Examination, Faculty of Medicine, Oita University, 1-1 Idaigaoka, Hasama, Yufu, Oita 879-5593, Japan
| | - Hirotsugu Tsuchimochi
- Department of Cardiac Physiology, National Cerebral and Cardiovascular Center Research Institute, 6-1 Kishibe-Shimmachi, Suita, Osaka, Japan
| | - Mikiyasu Shirai
- Department of Cardiac Physiology, National Cerebral and Cardiovascular Center Research Institute, 6-1 Kishibe-Shimmachi, Suita, Osaka, Japan
| | - Kunio Yufu
- Department of Cardiology and Clinical Examination, Faculty of Medicine, Oita University, 1-1 Idaigaoka, Hasama, Yufu, Oita 879-5593, Japan
| | - Motoki Arakane
- Department of Diagnostic Pathology, Faculty of Medicine, Oita University, 1-1 Idaigaoka, Hasama, Yufu, Oita, Japan
| | - Tsutomu Daa
- Department of Diagnostic Pathology, Faculty of Medicine, Oita University, 1-1 Idaigaoka, Hasama, Yufu, Oita, Japan
| | - Dean Thumkeo
- Department of Drug Discovery Medicine, Graduate School of Medicine, Kyoto University, Yoshida-Konoe-cho, Sakyo-ku, Kyoto, Japan
| | - Shuh Narumiya
- Department of Drug Discovery Medicine, Graduate School of Medicine, Kyoto University, Yoshida-Konoe-cho, Sakyo-ku, Kyoto, Japan
| | - Naohiko Takahashi
- Department of Cardiology and Clinical Examination, Faculty of Medicine, Oita University, 1-1 Idaigaoka, Hasama, Yufu, Oita 879-5593, Japan
| | - Toshimasa Ishizaki
- Department of Pharmacology, Faculty of Medicine, Oita University, 1-1 Idaigaoka, Hasama, Yufu, Oita 879-5593, Japan
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12
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Involvement of the FAK Network in Pathologies Related to Altered Mechanotransduction. Int J Mol Sci 2020; 21:ijms21249426. [PMID: 33322030 PMCID: PMC7764271 DOI: 10.3390/ijms21249426] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2020] [Revised: 12/02/2020] [Accepted: 12/04/2020] [Indexed: 02/08/2023] Open
Abstract
Mechanotransduction is a physiological process in which external mechanical stimulations are perceived, interpreted, and translated by cells into biochemical signals. Mechanical stimulations exerted by extracellular matrix stiffness and cell–cell contacts are continuously applied to living cells, thus representing a key pivotal trigger for cell homeostasis, survival, and function, as well as an essential factor for proper organ development and metabolism. Indeed, a deregulation of the mechanotransduction process consequent to gene mutations or altered functions of proteins involved in perceiving cellular and extracellular mechanics can lead to a broad range of diseases, from muscular dystrophies and cardiomyopathies to cancer development and metastatization. Here, we recapitulate the involvement of focal adhesion kinase (FAK) in the cellular conditions deriving from altered mechanotransduction processes.
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13
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Salemi Z, Azizi R, Fallahian F, Aghaei M. Integrin α2β1 inhibition attenuates prostate cancer cell proliferation by cell cycle arrest, promoting apoptosis and reducing epithelial-mesenchymal transition. J Cell Physiol 2020; 236:4954-4965. [PMID: 33305380 DOI: 10.1002/jcp.30202] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2020] [Revised: 10/25/2020] [Accepted: 11/25/2020] [Indexed: 12/14/2022]
Abstract
Integrin α2β1 plays an important role in cellular migration and metastasis processes associated with prostate cancer. The aim of this study was to assess whether selective inhibition of integrin α2β1 is an effective strategy to target metastatic prostate cancer cells. In this regard, we examined the effects of the inhibitor BTT-3033, which selectively interferes with the connection between integrin a2b1 and its ligand, on migration, epithelial-mesenchymal transition (EMT), cell cycle arrest, apoptosis, and specific intracellular signaling pathways using LNcap-FGC and DU-145 prostate cancer cell lines. Western blot analysis and immunocytochemistry assays showed that inhibition of integrin a2b1 inhibits EMT, through the increased expression of E-cadherin and decreased expression of N-cadherin and vimentin. Scratch wound healing assays revealed a direct effect on integrin α2β1 in the migration capacity of cells. In addition, treatment with BTT-3033 induced a reduction in cell viability and proliferation, as assessed by MTT and BrdU assays. In addition, the results show that BTT-3033 inhibits cell proliferation by inducing G1 cell cycle arrest. Moreover, inhibition of integrin α2β1 induces apoptosis through the activation of ROS, Bax protein upregulation, caspase-3 activation, and depletion of ΔΨm. Molecular signaling studies showed that integrin α2β1 was a positive regulator of MKK7 phosphorylation. In conclusion, our results reveal a critical role for integrin a2b1 in the proliferation of prostate cancer cells, as demonstrated by EMT inhibition, cell cycle arrest, and apoptosis induction in response to treatment with its specific inhibitor BT-3033.
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Affiliation(s)
- Zahra Salemi
- Molecular and Medicine Research Center, Arak University of Medical Sciences, Arak, Iran.,Department of Biochemistry, Arak University of Medical Sciences, Arak, IR, Iran
| | - Reza Azizi
- Department of Clinical Biochemistry, School of Pharmacy & Pharmaceutical Sciences, Isfahan University of Medical Sciences, Isfahan, Iran.,Department of Laboratory Sciences, Khomein University of Medical Sciences, Khomein, Iran
| | - Faranak Fallahian
- Department of Clinical Biochemistry, Faculty of Medicine, Qom University of Medical Sciences, Qom, Iran
| | - Mahmoud Aghaei
- Department of Clinical Biochemistry, School of Pharmacy & Pharmaceutical Sciences, Isfahan University of Medical Sciences, Isfahan, Iran
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14
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Taneja N, Bersi MR, Rasmussen ML, Gama V, Merryman WD, Burnette DT. Inhibition of focal adhesion kinase increases myofibril viscosity in cardiac myocytes. Cytoskeleton (Hoboken) 2020; 77:342-350. [PMID: 32885903 DOI: 10.1002/cm.21632] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2020] [Revised: 08/25/2020] [Accepted: 08/28/2020] [Indexed: 11/06/2022]
Abstract
The coordinated generation of mechanical forces by cardiac myocytes is required for proper heart function. Myofibrils are the functional contractile units of force production within individual cardiac myocytes. At the molecular level, myosin motors form cross-bridges with actin filaments and use ATP to convert chemical energy into mechanical forces. The energetic efficiency of the cross-bridge cycle is influenced by the viscous damping of myofibril contraction. The viscoelastic response of myofibrils is an emergent property of their individual mechanical components. Previous studies have implicated titin-actin interactions, cell-ECM adhesion, and microtubules as regulators of the viscoelastic response of myofibrils. Here we probed the viscoelastic response of myofibrils using laser-assisted dissection. As a proof-of-concept, we found actomyosin contractility was required to endow myofibrils with their viscoelastic response, with blebbistatin treatment resulting in decreased myofibril tension and viscous damping. Focal adhesion kinase (FAK) is a key regulator of cell-ECM adhesion, microtubule stability, and myofibril assembly. We found inhibition of FAK signaling altered the viscoelastic properties of myofibrils. Specifically, inhibition of FAK resulted in increased viscous damping of myofibril retraction following laser ablation. This damping was not associated with acute changes in the electrophysiological properties of cardiac myocytes. These results implicate FAK as a regulator of mechanical properties of myofibrils.
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Affiliation(s)
- Nilay Taneja
- Department of Cell and Developmental Biology, Vanderbilt University, Nashville, Tennessee, USA
| | - Matthew R Bersi
- Department of Biomedical Engineering, Vanderbilt University, Nashville, Tennessee, USA
| | - Megan L Rasmussen
- Department of Cell and Developmental Biology, Vanderbilt University, Nashville, Tennessee, USA
| | - Vivian Gama
- Department of Cell and Developmental Biology, Vanderbilt University, Nashville, Tennessee, USA
| | - W David Merryman
- Department of Biomedical Engineering, Vanderbilt University, Nashville, Tennessee, USA
| | - Dylan T Burnette
- Department of Cell and Developmental Biology, Vanderbilt University, Nashville, Tennessee, USA
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15
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Xiang M, Luo H, Wu J, Ren L, Ding X, Wu C, Chen J, Chen S, Zhang H, Yu L, Zou Y, Xu H, Ye P, Chen M, Xia J. ADAM23 in Cardiomyocyte Inhibits Cardiac Hypertrophy by Targeting FAK - AKT Signaling. J Am Heart Assoc 2019; 7:e008604. [PMID: 30371220 PMCID: PMC6222933 DOI: 10.1161/jaha.118.008604] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
Background Cardiac hypertrophy has been recognized as an important independent risk factor for the development of heart failure and increases the risk of cardiac morbidity and mortality. A disintegrin and metalloprotease 23 (ADAM23), a member of ADAM family, is involved in cancer and neuronal differentiation. Although ADAM23 is expressed in the heart, the role of ADAM23 in the heart and in cardiac diseases remains unknown. Methods and Results We observed that ADAM23 expression is decreased in both failing human hearts and hypertrophic mice hearts. Cardiac‐specific conditional ADAM23‐knockout mice significantly exhibited exacerbated cardiac hypertrophy, fibrosis, and dysfunction, whereas transgenic mice overexpressing ADAM23 in the heart exhibited reduced cardiac hypertrophy in response to pressure overload. Consistent results were also observed in angiotensin II‐induced neonatal rat cardiomyocyte hypertrophy. Mechanistically, ADAM23 exerts anti‐hypertrophic effects by specifically targeting the focal adhesion kinase‐protein kinase B (FAK‐AKT) signaling cascade. Focal adhesion kinase inactivation by inhibitor (PF‐562271) greatly reversed the detrimental effects in ADAM23‐knockout mice subjected to aortic banding. Conclusion Altogether, we identified ADAM23 as a negative regulator of cardiac hypertrophy through inhibiting focal adhesion kinase‐protein kinase B signaling pathway, which could be a promising therapeutic target for this malady.
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Affiliation(s)
- Mei Xiang
- 1 Department of Cardiology The Central Hospital of Wuhan Tongji Medical College Huazhong University of Science and Technology Wuhan China
| | - Hongbo Luo
- 1 Department of Cardiology The Central Hospital of Wuhan Tongji Medical College Huazhong University of Science and Technology Wuhan China
| | - Jia Wu
- 3 Key Laboratory for Molecular Diagnosis of Hubei Province The Central Hospital of Wuhan Tongji Medical College Huazhong University of Science and Technology Wuhan China
| | - Lingyun Ren
- 2 Department of Anesthesiology The Central Hospital of Wuhan Tongji Medical College Huazhong University of Science and Technology Wuhan China
| | - Xiangchao Ding
- 4 Department of Cardiovascular Surgery Union Hospital Tongji Medical College Huazhong University of Science and Technology Wuhan China
| | - Chuangyan Wu
- 4 Department of Cardiovascular Surgery Union Hospital Tongji Medical College Huazhong University of Science and Technology Wuhan China
| | - Jiuling Chen
- 4 Department of Cardiovascular Surgery Union Hospital Tongji Medical College Huazhong University of Science and Technology Wuhan China
| | - Shanshan Chen
- 4 Department of Cardiovascular Surgery Union Hospital Tongji Medical College Huazhong University of Science and Technology Wuhan China
| | - Hao Zhang
- 4 Department of Cardiovascular Surgery Union Hospital Tongji Medical College Huazhong University of Science and Technology Wuhan China
| | - Lu Yu
- 4 Department of Cardiovascular Surgery Union Hospital Tongji Medical College Huazhong University of Science and Technology Wuhan China
| | - Yanqiang Zou
- 4 Department of Cardiovascular Surgery Union Hospital Tongji Medical College Huazhong University of Science and Technology Wuhan China
| | - Heng Xu
- 4 Department of Cardiovascular Surgery Union Hospital Tongji Medical College Huazhong University of Science and Technology Wuhan China
| | - Ping Ye
- 1 Department of Cardiology The Central Hospital of Wuhan Tongji Medical College Huazhong University of Science and Technology Wuhan China
| | - Manhua Chen
- 1 Department of Cardiology The Central Hospital of Wuhan Tongji Medical College Huazhong University of Science and Technology Wuhan China
| | - Jiahong Xia
- 4 Department of Cardiovascular Surgery Union Hospital Tongji Medical College Huazhong University of Science and Technology Wuhan China
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16
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Ichihara S, Li P, Mise N, Suzuki Y, Izuoka K, Nakajima T, Gonzalez F, Ichihara G. Ablation of aryl hydrocarbon receptor promotes angiotensin II-induced cardiac fibrosis through enhanced c-Jun/HIF-1α signaling. Arch Toxicol 2019; 93:1543-1553. [PMID: 31016362 DOI: 10.1007/s00204-019-02446-1] [Citation(s) in RCA: 29] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2018] [Accepted: 04/09/2019] [Indexed: 12/01/2022]
Abstract
Aryl hydrocarbon receptor (AHR) is a transcription factor that binds to DNA as a heterodimer with the AHR nuclear translocator (ARNT) after interaction with ligands, such as polycyclic and halogenated aromatic hydrocarbons and other xenobiotics. The endogenous ligands and functions of AHR have been the subject of many investigations. In the present study, the potential role of AHR signaling in the development of left ventricular hypertrophy and cardiac fibrosis by angiotensin II (Ang II) infusion was investigated in mice lacking the AHR gene (Ahr-/-). We also assessed the hypothesis that fenofibrate, a peroxisome proliferator-activated receptor-α (PPARα) activator, reduces cardiac fibrosis through the c-Jun signaling. Male Ahr-/- and age-matched wild-type mice (n = 8 per group) were infused with Ang II at 100 ng/kg/min daily for 2 weeks. Treatment with Ang II increased systolic blood pressure to comparable levels in Ahr-/- and wild-type mice. However, Ahr-/- mice developed severe cardiac fibrosis after Ang II infusion compared with wild-type mice. Ang II infusion also significantly increased the expression of endothelin in the left ventricles of Ahr-/- mice, but not in wild-type mice, and significantly increased the c-Jun signaling in Ahr-/- mice. Ang II infusion also significantly enhanced the expression of hypoxia-inducible factor-1α (HIF-1α) and the downstream target vascular endothelial growth factor (VEGF) in the left ventricles of Ahr-/- mice. These results suggested pathogenic roles for the AHR signaling pathway in the development of cardiac fibrosis. Treatment with fenofibrate reduced cardiac fibrosis and abrogated the effects of Ang II on the expression of endothelin, HIF-1α, and VEGF. The inhibitory effect of fenofibrate on cardiac fibrosis was mediated by suppression of VEGF expression through modulation of c-Jun/HIF-1α signaling.
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Affiliation(s)
- Sahoko Ichihara
- Graduate School of Regional Innovation Studies, Mie University, Tsu, Japan. .,Department of Environmental and Preventive Medicine, Jichi Medical University School of Medicine, 3311-1 Yakushiji, Shimotsuke, 329-0498, Japan.
| | - Ping Li
- Nagoya University Graduate School of Medicine, Nagoya, Japan.,Department of Cardiology, Fuwai Hospital, National Center for Cardiovascular Disease, Chinese Academy of Medical Sciences, Peking Union Medical College, Beijing, China
| | - Nathan Mise
- Department of Environmental and Preventive Medicine, Jichi Medical University School of Medicine, 3311-1 Yakushiji, Shimotsuke, 329-0498, Japan
| | - Yuka Suzuki
- Graduate School of Regional Innovation Studies, Mie University, Tsu, Japan
| | - Kiyora Izuoka
- Graduate School of Regional Innovation Studies, Mie University, Tsu, Japan
| | - Tamie Nakajima
- Nagoya University Graduate School of Medicine, Nagoya, Japan.,Department of Lifelong Sports and Health Sciences, Chubu University, Kasugai, Japan
| | - Frank Gonzalez
- Laboratory of Metabolism, Center of Cancer Research, National Cancer Institute, National Institute of Health, Bethesda, MD, USA
| | - Gaku Ichihara
- Nagoya University Graduate School of Medicine, Nagoya, Japan.,Department of Occupational and Environmental Health, Tokyo University of Science, Noda, Japan
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17
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Yang D, Zhang L, Zhang Z, Hu S, Fu Y, Laukkanen JA, Li G. Silencing of C3G increases cardiomyocyte survival inhibition and apoptosis via regulation of p-ERK1/2 and Bax. Clin Exp Pharmacol Physiol 2018; 46:237-245. [PMID: 30152875 DOI: 10.1111/1440-1681.13027] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2018] [Revised: 08/23/2018] [Accepted: 08/23/2018] [Indexed: 11/29/2022]
Abstract
Experimental studies have shown that overexpression of Rap guanine nucleotide exchange factor 1 (C3G) plays pro-survival and anti-apoptotic roles through molecule phosphorylated extracellular signal-regulated kinase1/2 (p-ERK1/2) in cardiomyocytes. However, it is still unclear if silencing of C3G may increase cell survival inhibition and apoptosis in cardiomyocytes, and whether C3G silence induced injuries are reduced by the overexpression of C3G through regulation of p-ERK1/2 and pro-apoptotic molecule Bax. In this study, the rat-derived H9C2 cardiomyocytes were infected with C3G small hairpin RNA interference recombinant lentiviruses, which silenced the endogenous C3G expression in the cardiomyocytes. Then, contrary experiments were conducted using C3G overexpression. The cell proliferation and apoptosis were analyzed in the cardiomyocytes which were treated with or without hypoxia/reoxygenation (H/R). Silencing of C3G leaded to significant increase in cell survival inhibition and apoptosis, combined with aggravated the injuries induced by H/R. Overexpression of C3G reduced the injuries induced by the silencing of C3G in the cardiomyocytes via regulation of p-ERK1/2 and Bax. In conclusion, our results provide new experimental evidence that silencing of C3G can increase cell survival inhibition and apoptosis in cardiomyocytes via regulation of p-ERK1/2 and Bax.
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Affiliation(s)
- Dongyan Yang
- Division of Cardiology, Department of Geriatrics, The First Affiliated Hospital of Chongqing Medical University, Chongqing, China.,Laboratory Research Center, The First Affiliated Hospital of Chongqing Medical University, Chongqing, China
| | - Lei Zhang
- Division of Cardiology, Department of Geriatrics, The First Affiliated Hospital of Chongqing Medical University, Chongqing, China.,Laboratory Research Center, The First Affiliated Hospital of Chongqing Medical University, Chongqing, China
| | - Zhisheng Zhang
- Division of Cardiology, Department of Geriatrics, The First Affiliated Hospital of Chongqing Medical University, Chongqing, China.,Laboratory Research Center, The First Affiliated Hospital of Chongqing Medical University, Chongqing, China
| | - Sulei Hu
- Division of Cardiology, Department of Geriatrics, The First Affiliated Hospital of Chongqing Medical University, Chongqing, China.,Laboratory Research Center, The First Affiliated Hospital of Chongqing Medical University, Chongqing, China
| | - Yanbo Fu
- Division of Cardiology, Department of Geriatrics, The First Affiliated Hospital of Chongqing Medical University, Chongqing, China.,Laboratory Research Center, The First Affiliated Hospital of Chongqing Medical University, Chongqing, China
| | - Jari A Laukkanen
- Institute of Public Health and Clinical Nutrition, University of Eastern Finland, Kuopio, Finland.,Faculty of Sport and Health Sciences, University of Jyväskylä, Jyväskylä, Finland
| | - Gang Li
- Division of Cardiology, Department of Geriatrics, The First Affiliated Hospital of Chongqing Medical University, Chongqing, China
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18
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Dieffenbach PB, Maracle M, Tschumperlin DJ, Fredenburgh LE. Mechanobiological Feedback in Pulmonary Vascular Disease. Front Physiol 2018; 9:951. [PMID: 30090065 PMCID: PMC6068271 DOI: 10.3389/fphys.2018.00951] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2018] [Accepted: 06/28/2018] [Indexed: 01/06/2023] Open
Abstract
Vascular stiffening in the pulmonary arterial bed is increasingly recognized as an early disease marker and contributor to right ventricular workload in pulmonary hypertension. Changes in pulmonary artery stiffness throughout the pulmonary vascular tree lead to physiologic alterations in pressure and flow characteristics that may contribute to disease progression. These findings have led to a greater focus on the potential contributions of extracellular matrix remodeling and mechanical signaling to pulmonary hypertension pathogenesis. Several recent studies have demonstrated that the cellular response to vascular stiffness includes upregulation of signaling pathways that precipitate further vascular remodeling, a process known as mechanobiological feedback. The extracellular matrix modifiers, mechanosensors, and mechanotransducers responsible for this process have become increasingly well-recognized. In this review, we discuss the impact of vascular stiffening on pulmonary hypertension morbidity and mortality, evidence in favor of mechanobiological feedback in pulmonary hypertension pathogenesis, and the major contributors to mechanical signaling in the pulmonary vasculature.
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Affiliation(s)
- Paul B Dieffenbach
- Division of Pulmonary and Critical Care Medicine, Department of Medicine, Brigham and Women's Hospital, Boston, MA, United States
| | - Marcy Maracle
- Schulich School of Medicine and Dentistry, Western University, London, ON, Canada
| | - Daniel J Tschumperlin
- Department of Physiology and Biomedical Engineering, Mayo Clinic College of Medicine and Science, Rochester, MN, United States
| | - Laura E Fredenburgh
- Division of Pulmonary and Critical Care Medicine, Department of Medicine, Brigham and Women's Hospital, Boston, MA, United States
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19
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Gao J, Li Y, Wang T, Shi Z, Zhang Y, Liu S, Wen P, Ma C. Analyzing gene expression profiles with preliminary validations in cardiac hypertrophy induced by pressure overload. Can J Physiol Pharmacol 2018; 96:701-709. [PMID: 29510080 DOI: 10.1139/cjpp-2017-0585] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Abstract
The aim of this study was to identify the key genes involved in the cardiac hypertrophy (CH) induced by pressure overload. mRNA microarray data sets GSE5500 and GSE18801 were downloaded from the Gene Expression Omnibus database, and differentially expressed genes (DEGs) were screened using the Limma package; then, functional and pathway enrichment analysis were performed for common DEGs using the Database for Annotation, Visualization and Integrated Discovery database. Furthermore, the top DEGs were further validated using quantitative PCR in the hypertrophic heart tissue induced by isoprenaline. A total of 113 common DEGs with absolute fold change > 0.5, including 60 significantly upregulated DEGs and 53 downregulated DEGs, were obtained. Gene ontology term enrichment analysis suggested that common upregulated DEG were mainly enriched in neutrophil chemotaxis, extracellular fibril organization, and cell proliferation; and the common downregulated genes were significantly enriched in ion transport, endoplasmic reticulum, and dendritic spine. Kyoto Encyclopedia of Genes and Genomes pathway analysis found that the common DEGs were mainly enriched in extracellular matrix receptor interaction, phagosome, and focal adhesion. Additionally, the expression of Mfap4, Ltbp2, Aspn, Serpina3n, and Cnksr1 were upregulated in the model of CH, while the expression of Anp32a was downregulated. The current study identified the key deregulated genes and pathways involved in the CH, which could shed new light to understand the mechanism of CH.
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Affiliation(s)
- Jing Gao
- a Department of Cardiovascular Ultrasound, The First Hospital of China Medical University, Shenyang 110001, China.,b Department of Ultrasonography, The First Affiliated Hospital of Jinzhou Medical University, Jinzhou 121001, China
| | - Yuhong Li
- b Department of Ultrasonography, The First Affiliated Hospital of Jinzhou Medical University, Jinzhou 121001, China
| | - Tongmei Wang
- c Department of Pathophysiology, Jinzhou Medical University, Jinzhou 121001, China
| | - Zhuo Shi
- d Department of Anatomy, Jinzhou Medical University, Jinzhou 121001, China
| | - Yiqi Zhang
- c Department of Pathophysiology, Jinzhou Medical University, Jinzhou 121001, China
| | - Shuang Liu
- a Department of Cardiovascular Ultrasound, The First Hospital of China Medical University, Shenyang 110001, China
| | - Pushuai Wen
- c Department of Pathophysiology, Jinzhou Medical University, Jinzhou 121001, China
| | - Chunyan Ma
- a Department of Cardiovascular Ultrasound, The First Hospital of China Medical University, Shenyang 110001, China
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20
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Abstract
PURPOSE OF REVIEW Organ fibrosis is a lethal component of scleroderma. The hallmark of scleroderma fibrosis is extensive extracellular matrix (ECM) deposition by activated myofibroblasts, specialized hyper-contractile cells that promote ECM remodeling and matrix stiffening. The purpose of this review is to discuss novel mechanistic insight into myofibroblast activation in scleroderma. RECENT FINDINGS Matrix stiffness, traditionally viewed as an end point of organ fibrosis, is now recognized as a critical regulator of tissue fibrogenesis that hijacks the normal physiologic wound-healing program to promote organ fibrosis. Here, we discuss how matrix stiffness orchestrates fibrosis by controlling three fundamental pro-fibrotic mechanisms: (a) mechanoactivation of myofibroblasts, (b) integrin-mediated latent transforming growth factor beta 1 (TGF-β1) activation, and (c) activation of non-canonical TGF-β1 signaling pathways. We also summarize novel therapeutic targets for anti-fibrotic therapy based on the mechanobiology of scleroderma. Future research on mechanobiology of scleroderma may lead to important clinical applications such as improved diagnosis and treatment of patients with scleroderma and other fibrotic-related diseases.
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21
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Tschumperlin DJ, Ligresti G, Hilscher MB, Shah VH. Mechanosensing and fibrosis. J Clin Invest 2018; 128:74-84. [PMID: 29293092 DOI: 10.1172/jci93561] [Citation(s) in RCA: 179] [Impact Index Per Article: 29.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022] Open
Abstract
Tissue injury disrupts the mechanical homeostasis that underlies normal tissue architecture and function. The failure to resolve injury and restore homeostasis gives rise to progressive fibrosis that is accompanied by persistent alterations in the mechanical environment as a consequence of pathological matrix deposition and stiffening. This Review focuses on our rapidly growing understanding of the molecular mechanisms linking the altered mechanical environment in injury, repair, and fibrosis to cellular activation. In particular, our focus is on the mechanisms by which cells transduce mechanical signals, leading to transcriptional and epigenetic responses that underlie both transient and persistent alterations in cell state that contribute to fibrosis. Translation of these mechanobiological insights may enable new approaches to promote tissue repair and arrest or reverse fibrotic tissue remodeling.
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Affiliation(s)
| | | | - Moira B Hilscher
- Division of Gastroenterology and Hepatology, Mayo Clinic, Rochester, Minnesota, USA
| | - Vijay H Shah
- Division of Gastroenterology and Hepatology, Mayo Clinic, Rochester, Minnesota, USA
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22
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Giri S, Manivannan J, Srinivasan B, Sundaresan L, Gajalakshmi P, Chatterjee S. A proteome-wide systems toxicological approach deciphers the interaction network of chemotherapeutic drugs in the cardiovascular milieu. RSC Adv 2018; 8:20211-20221. [PMID: 35541641 PMCID: PMC9080753 DOI: 10.1039/c8ra02877j] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2018] [Accepted: 05/21/2018] [Indexed: 12/30/2022] Open
Abstract
Onco-cardiology is critical for the management of cancer therapeutics since many of the anti-cancer agents are associated with cardiotoxicity. Therefore, the major aim of the current study is to employ a novel in silico method combined with experimental validation to explore off-targets and prioritize the enriched molecular pathways related to the specific cardiovascular events other than their intended targets by deriving relationship between drug-target-pathways and cardiovascular complications in order to help onco-cardiologists for the management of strategies to minimize cardiotoxicity. A systems biological understanding of the multi-target effects of a drug requires prior knowledge of proteome-wide binding profiles. In order to achieve the above, we have utilized PharmMapper, a web-based tool that uses a reverse pharmacophore mapping approach (spatial arrangement of features essential for a molecule to interact with a specific target receptor), along with KEGG for exploring the pathway relationship. In the validation part of the study, predicted protein targets and signalling pathways were strengthened with existing datasets of DrugBank and antibody arrays specific to vascular endothelial growth factor (VEGF) signalling in the case of 5-fluorouracil as direct experimental evidence. The current systems toxicological method illustrates the potential of the above big-data in supporting the knowledge of onco-cardiological indications which may lead to the generation of a decision making catalogue in future therapeutic prescription. Onco-cardiology is critical for the management of cancer therapeutics since many of the anti-cancer agents are associated with cardiotoxicity.![]()
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Affiliation(s)
- Suvendu Giri
- Department of Biotechnology
- Anna University
- Chennai
- India
| | | | | | | | | | - Suvro Chatterjee
- Department of Biotechnology
- Anna University
- Chennai
- India
- Vascular Biology Lab
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23
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Mohanty P, Bhatnagar S. Structure of focal adhesion kinase in healthy heart versus pathological cardiac hypertrophy: A modeling and simulation study. J Mol Graph Model 2017; 80:15-24. [PMID: 29306139 DOI: 10.1016/j.jmgm.2017.12.008] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2017] [Revised: 12/07/2017] [Accepted: 12/08/2017] [Indexed: 12/12/2022]
Abstract
Focal adhesion kinase (FAK) is required for signaling in the heart. S910 phosphorylated FAK is known to cause pathological cardiac hypertrophy. The switching of FAK between its inactive (-i), activated (-a) and hyperactive (-h) state is controlled by phosphorylation. FAK consists of three domains, namely: FERM, Kinase, and FAT joined by linkers L1 and L2. The structural basis of FAK phosphorylation and signaling to the downstream pathways is not understood. In this work, we carried out homology modeling and domain assembly of full length human iFAK and aFAK. 100 ns classical molecular dynamic simulations were performed using AMBER14 and effect of S910 phosphorylation on FAK was investigated. The iFAK model superposed on a small angel X-ray scattering (SAXS) derived model with RMSD of 1.18 Å for 590 Cα atoms. aFAK showed S910 phosphorylation site in L2 shielded by FERM. S910 phosphorylation in hFAK led to its exposure accompanied by a large conformational change and exposing the previously buried Grb2 interaction site responsible for causing cardiac hypertrophy. The models of FAK are in agreement with diverse experimental data and observed differences in biological action. Understanding the structure activity relationships of FAK in response to phosphorylation is important for its future therapeutic modulation.
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Affiliation(s)
- Pallavi Mohanty
- Computational and Structural Biology Laboratory, Division of Biotechnology, Netaji Subhas Institute of Technology, Dwarka, New Delhi 110078, India
| | - Sonika Bhatnagar
- Computational and Structural Biology Laboratory, Division of Biotechnology, Netaji Subhas Institute of Technology, Dwarka, New Delhi 110078, India.
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Shim JV, Chun B, van Hasselt JGC, Birtwistle MR, Saucerman JJ, Sobie EA. Mechanistic Systems Modeling to Improve Understanding and Prediction of Cardiotoxicity Caused by Targeted Cancer Therapeutics. Front Physiol 2017; 8:651. [PMID: 28951721 PMCID: PMC5599787 DOI: 10.3389/fphys.2017.00651] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2017] [Accepted: 08/16/2017] [Indexed: 12/13/2022] Open
Abstract
Tyrosine kinase inhibitors (TKIs) are highly potent cancer therapeutics that have been linked with serious cardiotoxicity, including left ventricular dysfunction, heart failure, and QT prolongation. TKI-induced cardiotoxicity is thought to result from interference with tyrosine kinase activity in cardiomyocytes, where these signaling pathways help to control critical processes such as survival signaling, energy homeostasis, and excitation–contraction coupling. However, mechanistic understanding is limited at present due to the complexities of tyrosine kinase signaling, and the wide range of targets inhibited by TKIs. Here, we review the use of TKIs in cancer and the cardiotoxicities that have been reported, discuss potential mechanisms underlying cardiotoxicity, and describe recent progress in achieving a more systematic understanding of cardiotoxicity via the use of mechanistic models. In particular, we argue that future advances are likely to be enabled by studies that combine large-scale experimental measurements with Quantitative Systems Pharmacology (QSP) models describing biological mechanisms and dynamics. As such approaches have proven extremely valuable for understanding and predicting other drug toxicities, it is likely that QSP modeling can be successfully applied to cardiotoxicity induced by TKIs. We conclude by discussing a potential strategy for integrating genome-wide expression measurements with models, illustrate initial advances in applying this approach to cardiotoxicity, and describe challenges that must be overcome to truly develop a mechanistic and systematic understanding of cardiotoxicity caused by TKIs.
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Affiliation(s)
- Jaehee V Shim
- Department of Pharmacological Sciences, Icahn School of Medicine at Mount SinaiNew York, NY, United States
| | - Bryan Chun
- Department of Biomedical Engineering, University of VirginiaCharlottesville, VA, United States
| | - Johan G C van Hasselt
- Department of Pharmacological Sciences, Icahn School of Medicine at Mount SinaiNew York, NY, United States
| | - Marc R Birtwistle
- Department of Pharmacological Sciences, Icahn School of Medicine at Mount SinaiNew York, NY, United States
| | - Jeffrey J Saucerman
- Department of Biomedical Engineering, University of VirginiaCharlottesville, VA, United States
| | - Eric A Sobie
- Department of Pharmacological Sciences, Icahn School of Medicine at Mount SinaiNew York, NY, United States
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Qian Y, Shao M, Zou W, Wang L, Cheng R, Hu T. Focal adhesion kinase maintains, but not increases the adhesion of dental pulp cells. Hum Cell 2017; 30:98-105. [PMID: 28238196 DOI: 10.1007/s13577-017-0159-9] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2016] [Accepted: 01/11/2017] [Indexed: 02/05/2023]
Abstract
Focal adhesion kinase (FAK) functions as a key enzyme in the integrin-mediated adhesion-signalling pathway. Here, we aimed to investigate the effects of FAK on adhesion of human dental pulp (HDP) cells. We transfected lentiviral vectors to silence or overexpress FAK in HDP cells ex vivo. Early cell adhesion, cell survival and focal contacts (FCs)-related proteins (FAK and paxillin) were examined. By using immunofluorescence, the formation of FCs and cytoskeleton was detected, respectively. We found that both adhesion and survival of HDP cells were suppressed by FAK inhibition. However, FAK overexpression slightly inhibited cell adhesion and exhibited no change in cell survival compared with the control. A thick rim of cytoskeleton accumulated and smaller dot-shaped FCs appeared in FAK knockdown cells. Phosphorylation of paxillin (p-paxillin) was inhibited in FAK knockdown cells, verifying that the adhesion was inhibited. Less cytoskeleton and elongated FCs were observed in FAK-overexpressed cells. However, p-paxillin had no significant difference compared with the control. In conclusion, the data suggest that FAK maintains cell adhesion, survival and cytoskeleton formation, but excessive FAK has no positive effects on these aspects.
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Affiliation(s)
- Yuyan Qian
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, Sichuan, China
- Department of Endodontics, Guiyang Hospital of Stomatology, Guiyang, Guizhou, China
| | - Meiying Shao
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, Sichuan, China
| | - Wenlin Zou
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, Sichuan, China
| | - Linyan Wang
- Department of Preventive Dentistry, West China Hospital of Stomatology, Sichuan University, Chengdu, Sichuan, China
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, Sichuan, China
| | - Ran Cheng
- Department of Preventive Dentistry, West China Hospital of Stomatology, Sichuan University, Chengdu, Sichuan, China.
| | - Tao Hu
- Department of Preventive Dentistry, West China Hospital of Stomatology, Sichuan University, Chengdu, Sichuan, China
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Visavadiya NP, Keasey MP, Razskazovskiy V, Banerjee K, Jia C, Lovins C, Wright GL, Hagg T. Integrin-FAK signaling rapidly and potently promotes mitochondrial function through STAT3. Cell Commun Signal 2016; 14:32. [PMID: 27978828 PMCID: PMC5159999 DOI: 10.1186/s12964-016-0157-7] [Citation(s) in RCA: 58] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2016] [Accepted: 12/06/2016] [Indexed: 01/02/2023] Open
Abstract
Background STAT3 is increasingly becoming known for its non-transcriptional regulation of mitochondrial bioenergetic function upon activation of its S727 residue (S727-STAT3). Lengthy mitochondrial dysfunction can lead to cell death. We tested whether an integrin-FAK-STAT3 signaling pathway we recently discovered regulates mitochondrial function and cell survival, and treatments thereof. Methods Cultured mouse brain bEnd5 endothelial cells were treated with integrin, FAK or STAT3 inhibitors, FAK siRNA, as well as integrin and STAT3 activators. STAT3 null cells were transfected with mutant STAT3 plasmids. Outcome measures included oxygen consumption rate for mitochondrial bioenergetics, Western blotting for protein phosphorylation, mitochondrial membrane potential for mitochondrial integrity, ROS production, and cell counts. Results Vitronectin-dependent mitochondrial basal respiration, ATP production, and maximum reserve and respiratory capacities were suppressed within 4 h by RGD and αvβ3 integrin antagonist peptides. Conversely, integrin ligands vitronectin, laminin and fibronectin stimulated mitochondrial function. Pharmacological inhibition of FAK completely abolished mitochondrial function within 4 h while FAK siRNA treatments confirmed the specificity of FAK signaling. WT, but not S727A functionally dead mutant STAT3, rescued bioenergetics in cells made null for STAT3 using CRISPR-Cas9. STAT3 inhibition with stattic in whole cells rapidly reduced mitochondrial function and mitochondrial pS727-STAT3. Stattic treatment of isolated mitochondria did not reduce pS727 whereas more was detected upon phosphatase inhibition. This suggests that S727-STAT3 is activated in the cytoplasm and is short-lived upon translocation to the mitochondria. FAK inhibition reduced pS727-STAT3 within mitochondria and reduced mitochondrial function in a non-transcriptional manner, as shown by co-treatment with actinomycin. Treatment with the small molecule bryostatin-1 or hepatocyte growth factor (HGF), which indirectly activate S727-STAT3, preserved mitochondrial function during FAK inhibition, but failed in the presence of the STAT3 inhibitor. FAK inhibition induced loss of mitochondrial membrane potential, which was counteracted by bryostatin, and increased superoxide and hydrogen peroxide production. Bryostatin and HGF reduced the substantial cell death caused by FAK inhibition over a 24 h period. Conclusion These data suggest that extracellular matrix molecules promote STAT3-dependent mitochondrial function and cell survival through integrin-FAK signaling. We furthermore show a new treatment strategy for cell survival using S727-STAT3 activators.
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Affiliation(s)
- Nishant P Visavadiya
- Department of Biomedical Sciences, Quillen College of Medicine, East Tennessee State University, Building 178, Maple Ave, PO Box 70582, Johnson City, TN37614, USA
| | - Matthew P Keasey
- Department of Biomedical Sciences, Quillen College of Medicine, East Tennessee State University, Building 178, Maple Ave, PO Box 70582, Johnson City, TN37614, USA
| | - Vladislav Razskazovskiy
- Department of Biomedical Sciences, Quillen College of Medicine, East Tennessee State University, Building 178, Maple Ave, PO Box 70582, Johnson City, TN37614, USA
| | - Kalpita Banerjee
- Department of Biomedical Sciences, Quillen College of Medicine, East Tennessee State University, Building 178, Maple Ave, PO Box 70582, Johnson City, TN37614, USA
| | - Cuihong Jia
- Department of Biomedical Sciences, Quillen College of Medicine, East Tennessee State University, Building 178, Maple Ave, PO Box 70582, Johnson City, TN37614, USA
| | - Chiharu Lovins
- Department of Biomedical Sciences, Quillen College of Medicine, East Tennessee State University, Building 178, Maple Ave, PO Box 70582, Johnson City, TN37614, USA
| | - Gary L Wright
- Department of Biomedical Sciences, Quillen College of Medicine, East Tennessee State University, Building 178, Maple Ave, PO Box 70582, Johnson City, TN37614, USA
| | - Theo Hagg
- Department of Biomedical Sciences, Quillen College of Medicine, East Tennessee State University, Building 178, Maple Ave, PO Box 70582, Johnson City, TN37614, USA.
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Yang N, Yu F, Shao G, Fu Y, Kong W. The E3 ubiquitin ligase c-Cbl mediates integrin β1 ubiquitination during dilated cardiomyopathy. Biochem Biophys Res Commun 2016; 479:728-735. [DOI: 10.1016/j.bbrc.2016.09.144] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2016] [Accepted: 09/27/2016] [Indexed: 11/26/2022]
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Cardoso AC, Pereira AHM, Ambrosio ALB, Consonni SR, Rocha de Oliveira R, Bajgelman MC, Dias SMG, Franchini KG. FAK Forms a Complex with MEF2 to Couple Biomechanical Signaling to Transcription in Cardiomyocytes. Structure 2016; 24:1301-1310. [PMID: 27427476 DOI: 10.1016/j.str.2016.06.003] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2016] [Revised: 05/06/2016] [Accepted: 06/04/2016] [Indexed: 11/27/2022]
Abstract
Focal adhesion kinase (FAK) has emerged as a mediator of mechanotransduction in cardiomyocytes, regulating gene expression during hypertrophic remodeling. However, how FAK signaling is relayed onward to the nucleus is unclear. Here, we show that FAK interacts with and regulates myocyte enhancer factor 2 (MEF2), a master cardiac transcriptional regulator. In cardiomyocytes exposed to biomechanical stimulation, FAK accumulates in the nucleus, binds to and upregulates the transcriptional activity of MEF2 through an interaction with the FAK focal adhesion targeting (FAT) domain. In the crystal structure (2.9 Å resolution), FAT binds to a stably folded groove in the MEF2 dimer, known to interact with regulatory cofactors. FAK cooperates with MEF2 to enhance the expression of Jun in cardiomyocytes, an important component of hypertrophic response to mechanical stress. These findings underscore a connection between the mechanotransduction involving FAK and transcriptional regulation by MEF2, with potential relevance to the pathogenesis of cardiac disease.
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Affiliation(s)
- Alisson Campos Cardoso
- Brazilian National Laboratory for Biosciences, Center for Research in Energy and Materials, Campinas, São Paulo 13084-971, Brazil
| | - Ana Helena Macedo Pereira
- Brazilian National Laboratory for Biosciences, Center for Research in Energy and Materials, Campinas, São Paulo 13084-971, Brazil
| | - Andre Luis Berteli Ambrosio
- Brazilian National Laboratory for Biosciences, Center for Research in Energy and Materials, Campinas, São Paulo 13084-971, Brazil
| | - Silvio Roberto Consonni
- Brazilian National Laboratory for Biosciences, Center for Research in Energy and Materials, Campinas, São Paulo 13084-971, Brazil
| | - Renata Rocha de Oliveira
- Brazilian National Laboratory for Biosciences, Center for Research in Energy and Materials, Campinas, São Paulo 13084-971, Brazil
| | - Marcio Chain Bajgelman
- Brazilian National Laboratory for Biosciences, Center for Research in Energy and Materials, Campinas, São Paulo 13084-971, Brazil
| | - Sandra Martha Gomes Dias
- Brazilian National Laboratory for Biosciences, Center for Research in Energy and Materials, Campinas, São Paulo 13084-971, Brazil
| | - Kleber Gomes Franchini
- Brazilian National Laboratory for Biosciences, Center for Research in Energy and Materials, Campinas, São Paulo 13084-971, Brazil; Department of Internal Medicine, School of Medicine, University of Campinas, Campinas, São Paulo 13081-970, Brazil.
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29
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Huang W, Kazmierczak K, Zhou Z, Aguiar-Pulido V, Narasimhan G, Szczesna-Cordary D. Gene expression patterns in transgenic mouse models of hypertrophic cardiomyopathy caused by mutations in myosin regulatory light chain. Arch Biochem Biophys 2016; 601:121-32. [PMID: 26906074 PMCID: PMC5370580 DOI: 10.1016/j.abb.2016.02.022] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2015] [Revised: 02/15/2016] [Accepted: 02/18/2016] [Indexed: 12/23/2022]
Abstract
Using microarray and bioinformatics, we examined the gene expression profiles in transgenic mouse hearts expressing mutations in the myosin regulatory light chain shown to cause hypertrophic cardiomyopathy (HCM). We focused on two malignant RLC-mutations, Arginine 58→Glutamine (R58Q) and Aspartic Acid 166 → Valine (D166V), and one benign, Lysine 104 → Glutamic Acid (K104E)-mutation. Datasets of differentially expressed genes for each of three mutants were compared to those observed in wild-type (WT) hearts. The changes in the mutant vs. WT samples were shown as fold-change (FC), with stringency FC ≥ 2. Based on the gene profiles, we have identified the major signaling pathways that underlie the R58Q-, D166V- and K104E-HCM phenotypes. The correlations between different genotypes were also studied using network-based algorithms. Genes with strong correlations were clustered into one group and the central gene networks were identified for each HCM mutant. The overall gene expression patterns in all mutants were distinct from the WT profiles. Both malignant mutations shared certain classes of genes that were up or downregulated, but most similarities were noted between D166V and K104E mice, with R58Q hearts showing a distinct gene expression pattern. Our data suggest that all three HCM mice lead to cardiomyopathy in a mutation-specific manner and thus develop HCM through diverse mechanisms.
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Affiliation(s)
- Wenrui Huang
- Department of Molecular and Cellular Pharmacology, University of Miami Miller School of Medicine, Miami, FL 33136, USA; Bioinformatics Research Group (BioRG), School of Computing and Information Sciences, Florida International University, Miami, FL 33199, USA
| | - Katarzyna Kazmierczak
- Department of Molecular and Cellular Pharmacology, University of Miami Miller School of Medicine, Miami, FL 33136, USA
| | - Zhiqun Zhou
- Department of Molecular and Cellular Pharmacology, University of Miami Miller School of Medicine, Miami, FL 33136, USA
| | - Vanessa Aguiar-Pulido
- Bioinformatics Research Group (BioRG), School of Computing and Information Sciences, Florida International University, Miami, FL 33199, USA
| | - Giri Narasimhan
- Bioinformatics Research Group (BioRG), School of Computing and Information Sciences, Florida International University, Miami, FL 33199, USA; Biomolecular Sciences Institute, Florida International University, Miami, FL 33199, USA
| | - Danuta Szczesna-Cordary
- Department of Molecular and Cellular Pharmacology, University of Miami Miller School of Medicine, Miami, FL 33136, USA.
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STIM1-dependent Ca(2+) microdomains are required for myofilament remodeling and signaling in the heart. Sci Rep 2016; 6:25372. [PMID: 27150728 PMCID: PMC4858716 DOI: 10.1038/srep25372] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/24/2015] [Accepted: 04/14/2016] [Indexed: 01/04/2023] Open
Abstract
In non-excitable cells stromal interaction molecule 1 (STIM1) is a key element in the generation of Ca(2+) signals that lead to gene expression, migration and cell proliferation. A growing body of literature suggests that STIM1 plays a key role in the development of pathological cardiac hypertrophy. However, the precise mechanisms involving STIM-dependent Ca(2+) signaling in the heart are not clearly established. Here, we have investigated the STIM1-associated Ca(2+) signals in cardiomyocytes and their relevance to pathological cardiac remodeling. We show that mice with inducible, cardiac-restricted, ablation of STIM1 exhibited left ventricular reduced contractility, which was corroborated by impaired single cell contractility. The spatial properties of STIM1-dependent Ca(2+) signals determine restricted Ca(2+) microdomains that regulate myofilament remodeling and activate spatially segregated pro-hypertrophic factors. Indeed, mice lacking STIM1 showed less adverse structural remodeling in response to pressure overload-induced cardiac hypertrophy. These results highlight how STIM1-dependent Ca(2+) microdomains have a major impact on intracellular Ca(2+) homeostasis, cytoskeletal remodeling and cellular signaling, even when excitation-contraction coupling is present.
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Mohanty P, Bhatnagar S. Structural basis of focal adhesion targeting domain-mediated signaling in cardiac hypertrophy. J Recept Signal Transduct Res 2016; 37:38-50. [DOI: 10.3109/10799893.2016.1155067] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
Affiliation(s)
- Pallavi Mohanty
- Computational and Structural Biology Laboratory, Division of Biotechnology, Netaji Subhas Institute of Technology, Dwarka, New Delhi, India
| | - Sonika Bhatnagar
- Computational and Structural Biology Laboratory, Division of Biotechnology, Netaji Subhas Institute of Technology, Dwarka, New Delhi, India
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Hirth S, Bühler A, Bührdel JB, Rudeck S, Dahme T, Rottbauer W, Just S. Paxillin and Focal Adhesion Kinase (FAK) Regulate Cardiac Contractility in the Zebrafish Heart. PLoS One 2016; 11:e0150323. [PMID: 26954676 PMCID: PMC4782988 DOI: 10.1371/journal.pone.0150323] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2015] [Accepted: 02/11/2016] [Indexed: 01/28/2023] Open
Abstract
An orchestrated interplay of adaptor and signaling proteins at mechano-sensitive sites is essential to maintain cardiac contractility and when defective leads to heart failure. We recently showed that Integrin-linked Kinase (ILK), ß-Parvin and PINCH form the IPP-complex to grant tuned Protein Kinase B (PKB) signaling in the heart. Loss of one of the IPP-complex components results in destabilization of the whole complex, defective PKB signaling and finally heart failure. Two components of IPP, ILK and ß-Parvin directly bind to Paxillin; however, the impact of this direct interaction on the maintenance of heart function is not known yet. Here, we show that targeted gene inactivation of Paxillin results in progressive decrease of cardiac contractility and heart failure in zebrafish without affecting IPP-complex stability and PKB phosphorylation. However, we found that Paxillin deficiency leads to the destabilization of its known binding partner Focal Adhesion Kinase (FAK) and vice versa resulting in degradation of Vinculin and thereby heart failure. Our findings highlight an essential role of Paxillin and FAK in controlling cardiac contractility via the recruitment of Vinculin to mechano-sensitive sites in cardiomyocytes.
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Affiliation(s)
- Sofia Hirth
- Molecular Cardiology, University of Ulm, Ulm, Germany
| | - Anja Bühler
- Molecular Cardiology, University of Ulm, Ulm, Germany
| | | | - Steven Rudeck
- Molecular Cardiology, University of Ulm, Ulm, Germany
| | - Tillman Dahme
- Department of Medicine II, University of Ulm, Ulm, Germany
| | - Wolfgang Rottbauer
- Department of Medicine II, University of Ulm, Ulm, Germany
- * E-mail: (SJ); (WR)
| | - Steffen Just
- Molecular Cardiology, University of Ulm, Ulm, Germany
- * E-mail: (SJ); (WR)
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Pasipoularides A. Mechanotransduction Mechanisms for Intraventricular Diastolic Vortex Forces and Myocardial Deformations: Part 2. J Cardiovasc Transl Res 2015; 8:293-318. [PMID: 25971844 PMCID: PMC4519381 DOI: 10.1007/s12265-015-9630-8] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/25/2015] [Accepted: 04/27/2015] [Indexed: 01/10/2023]
Abstract
Epigenetic mechanisms are fundamental in cardiac adaptations, remodeling, reverse remodeling, and disease. A primary goal of translational cardiovascular research is recognizing whether disease-related changes in phenotype can be averted by eliminating or reducing the effects of environmental epigenetic risks. There may be significant medical benefits in using gene-by-environment interaction knowledge to prevent or reverse organ abnormalities and disease. This survey proposes that "environmental" forces associated with diastolic RV/LV rotatory flows exert important, albeit still unappreciated, epigenetic actions influencing functional and morphological cardiac adaptations. Mechanisms analogous to Murray's law of hydrodynamic shear-induced endothelial cell modulation of vascular geometry are likely to link diastolic vortex-associated shear, torque and "squeeze" forces to RV/LV adaptations. The time has come to explore a new paradigm in which such forces play a fundamental epigenetic role, and to work out how heart cells react to them. Findings from various imaging modalities, computational fluid dynamics, molecular cell biology and cytomechanics are considered. The following are examined, among others: structural dynamics of myocardial cells (endocardium, cardiomyocytes, and fibroblasts), cytoskeleton, nucleoskeleton, and extracellular matrix; mechanotransduction and signaling; and mechanical epigenetic influences on genetic expression. To help integrate and focus relevant pluridisciplinary research, rotatory RV/LV filling flow is placed within a working context that has a cytomechanics perspective. This new frontier in cardiac research should uncover versatile mechanistic insights linking filling vortex patterns and attendant forces to variable expressions of gene regulation in RV/LV myocardium. In due course, it should reveal intrinsic homeostatic arrangements that support ventricular myocardial function and adaptability.
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Affiliation(s)
- Ares Pasipoularides
- Department of Surgery, Duke University School of Medicine, Durham, NC, 27710, USA,
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35
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Focal adhesion kinase-promoted tumor glucose metabolism is associated with a shift of mitochondrial respiration to glycolysis. Oncogene 2015; 35:1926-42. [PMID: 26119934 PMCID: PMC4486081 DOI: 10.1038/onc.2015.256] [Citation(s) in RCA: 36] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2014] [Revised: 05/10/2015] [Accepted: 05/29/2015] [Indexed: 12/11/2022]
Abstract
Cancer cells often gains a growth advantage by taking up glucose at a high rate and undergoing aerobic glycolysis through intrinsic cellular factors that reprogram glucose metabolism. Focal adhesion kinase (FAK), a key transmitter of growth factor and anchorage stimulation, is aberrantly overexpressed or activated in most solid tumors, including pancreatic ductal adenocarcinomas (PDACs). We determined whether FAK can act as an intrinsic driver to promote aerobic glycolysis and tumorigenesis. FAK inhibition decreases and overexpression increases intracellular glucose levels during unfavorable conditions, including growth factor deficiency and cell detachment. Amplex glucose assay, fluorescence and carbon-13 tracing studies demonstrate that FAK promotes glucose consumption and glucose-to-lactate conversion. Extracellular flux analysis indicates that FAK enhances glycolysis and decreases mitochondrial respiration. FAK increases key glycolytic proteins, including enolase, pyruvate kinase M2 (PKM2), lactate dehydrogenase and monocarboxylate transporter. Furthermore, active/tyrosine-phosphorylated FAK directly binds to PKM2 and promotes PKM2-mediated glycolysis. On the other hand, FAK-decreased levels of mitochondrial complex I can result in reduced oxidative phosphorylation (OXPHOS). Attenuation of FAK-enhanced glycolysis re-sensitizes cancer cells to growth factor withdrawal, decreases cell viability and reduces growth of tumor xenografts. These observations, for the first time, establish a vital role of FAK in cancer glucose metabolism through alterations in the OXPHOS-to-glycolysis balance. Broadly targeting the common phenotype of aerobic glycolysis and more specifically FAK-reprogrammed glucose metabolism will disrupt the bioenergetic and biosynthetic supply for uncontrolled growth of tumors, particularly glycolytic PDAC.
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Yin HK, Li XY, Jiang ZG, Zhou MD. Progress in neuregulin/ErbB signaling and chronic heart failure. World J Hypertens 2015; 5:63-73. [DOI: 10.5494/wjh.v5.i2.63] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/28/2014] [Revised: 03/10/2015] [Accepted: 04/20/2015] [Indexed: 02/06/2023] Open
Abstract
Heart failure is one of the leading causes of death today. It is a complex clinical syndrome in which the heart has a reduced contraction ability and decreased viable myocytes. Novel approaches to the clinical management of heart failure have been achieved through an understanding of the molecular pathways necessary for normal heart development. Neuregulin-1 (NRG-1) has emerged as a potential therapeutic target based on the fact that mice null for NRG-1 or receptors mediating its activity, ErbB2 and ErbB4, are embryonic lethal and exhibit severe cardiac defects. Preclinical studies performed with animal models of heart failure demonstrate that treatment with NRG-1 significantly improves heart function and survival. Clinical data further support NRG-1 as a promising drug candidate for the treatment of cardiac dysfunction in patients. Recent studies have revealed the mechanism underlying the therapeutic effects of NRG-1/ErbB signaling in the treatment of heart failure. Through activation of upstream signaling molecules such as phosphoinositide 3-kinase, mitogen-activated protein kinase, and focal adhesion kinase, NRG-1/ErbB pathway activation results in increased cMLCK expression and enhanced intracellular calcium cycling. The former is a regulator of the contractile machinery, and the latter triggers cell contraction and relaxation. In addition, NRG-1/ErbB signaling also influences energy metabolism and induces epigenetic modification in cardiac myocytes in a way that more closely resembles healthy heart. These observations reveal potentially new treatment options for heart failure.
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Freedman BR, Bade ND, Riggin CN, Zhang S, Haines PG, Ong KL, Janmey PA. The (dys)functional extracellular matrix. BIOCHIMICA ET BIOPHYSICA ACTA-MOLECULAR CELL RESEARCH 2015; 1853:3153-64. [PMID: 25930943 DOI: 10.1016/j.bbamcr.2015.04.015] [Citation(s) in RCA: 55] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/14/2015] [Revised: 04/11/2015] [Accepted: 04/13/2015] [Indexed: 10/23/2022]
Abstract
The extracellular matrix (ECM) is a major component of the biomechanical environment with which cells interact, and it plays important roles in both normal development and disease progression. Mechanical and biochemical factors alter the biomechanical properties of tissues by driving cellular remodeling of the ECM. This review provides an overview of the structural, compositional, and mechanical properties of the ECM that instruct cell behaviors. Case studies are reviewed that highlight mechanotransduction in the context of two distinct tissues: tendons and the heart. Although these two tissues demonstrate differences in relative cell-ECM composition and mechanical environment, they share similar mechanisms underlying ECM dysfunction and cell mechanotransduction. Together, these topics provide a framework for a fundamental understanding of the ECM and how it may vary across normal and diseased tissues in response to mechanical and biochemical cues. This article is part of a Special Issue entitled: Mechanobiology.
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Affiliation(s)
- Benjamin R Freedman
- Department of Bioengineering, University of Pennsylvania, Philadelphia, PA, USA
| | - Nathan D Bade
- Department of Chemical and Biomolecular Engineering, University of Pennsylvania, Philadelphia, PA, USA
| | - Corinne N Riggin
- Department of Bioengineering, University of Pennsylvania, Philadelphia, PA, USA
| | - Sijia Zhang
- Department of Bioengineering, University of Pennsylvania, Philadelphia, PA, USA
| | - Philip G Haines
- Division of Cardiovascular Medicine, University of Pennsylvania, Philadelphia, PA, USA
| | - Katy L Ong
- Department of Cell and Developmental Biology, University of Pennsylvania, Philadelphia, PA, USA
| | - Paul A Janmey
- Department of Bioengineering, University of Pennsylvania, Philadelphia, PA, USA; Department of Physiology, University of Pennsylvania, Philadelphia, PA, USA.
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Hsiao YF, Pan HJ, Tung YC, Chen CC, Lee CH. Effects of hydraulic pressure on cardiomyoblasts in a microfluidic device. BIOMICROFLUIDICS 2015; 9:024111. [PMID: 25945137 PMCID: PMC4393411 DOI: 10.1063/1.4917080] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/02/2015] [Accepted: 03/27/2015] [Indexed: 05/05/2023]
Abstract
We employed a microfluidic device to study the effects of hydraulic pressure on cardiomyoblast H9c2. The 170 mm Hg pressure increased the cellular area and the expression of atrial natriuretic peptide. With the same device, we demonstrated that the effects of hydraulic pressure on the cardiomyoblast could be reduced by the inhibitor of focal adhesion kinase. This mechanical-chemical antagonism could lead to a potential therapeutic strategy of hypertension-induced cardiac hypertrophy.
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Affiliation(s)
| | - Huei-Jyuan Pan
- Research Center for Applied Sciences , Academia Sinica, Taipei 11529, Taiwan
| | - Yi-Chung Tung
- Research Center for Applied Sciences , Academia Sinica, Taipei 11529, Taiwan
| | - Chien-Chang Chen
- Institute of Biomedical Sciences , Academia Sinica, Taipei 11529, Taiwan
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Abstract
: Mitral regurgitation and other conditions marked by a pure isolated volume overload (VO) of the heart result in a progressive form of eccentric left ventricular remodeling and dysfunction. As opposed to the more extensively studied pressure overload, there are no approved medical therapies because an understanding of the underlying pathological mechanisms at work in VO is lacking. Over the past 20 years, our laboratory has identified multiple key biological functions involved in the pathological remodeling in VO. Specifically, we have noted perturbed matrix homeostasis, detrimental adrenergic signaling, increased intracellular reactive oxygen species and an intense inflammatory response that implicates mast cells and their product chymase, which seems to cause extensive remodeling both inside and outside the cardiomyocyte. How these multiple pathways intersect over the course of VO and their response to various single and combined interventions are now the subject of intense investigation.
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40
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Zhang ZS, Yang DY, Fu YB, Zhang L, Zhao QP, Li G. Knockdown of CkrL by shRNA deteriorates hypoxia/reoxygenation-induced H9C2 cardiomyocyte apoptosis and survival inhibition Via Bax and downregulation of P-Erk1/2. Cell Biochem Funct 2015; 33:80-8. [PMID: 25703803 DOI: 10.1002/cbf.3093] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/13/2014] [Revised: 12/24/2014] [Accepted: 01/15/2015] [Indexed: 11/08/2022]
Affiliation(s)
- Zhi-Sheng Zhang
- Division of Cardiology, Department of Geriatrics; The First Affiliated Hospital of Chongqing Medical University; Chongqing China
- Laboratory Research Center; The First Affiliated Hospital of Chongqing Medical University; Chongqing China
| | - Dong-Yan Yang
- Division of Cardiology, Department of Geriatrics; The First Affiliated Hospital of Chongqing Medical University; Chongqing China
- Laboratory Research Center; The First Affiliated Hospital of Chongqing Medical University; Chongqing China
| | - Yan-Bo Fu
- Division of Cardiology, Department of Geriatrics; The First Affiliated Hospital of Chongqing Medical University; Chongqing China
- Laboratory Research Center; The First Affiliated Hospital of Chongqing Medical University; Chongqing China
| | - Lei Zhang
- Division of Cardiology, Department of Geriatrics; The First Affiliated Hospital of Chongqing Medical University; Chongqing China
- Laboratory Research Center; The First Affiliated Hospital of Chongqing Medical University; Chongqing China
| | - Qian-Ping Zhao
- Division of Cardiology, Department of Geriatrics; The First Affiliated Hospital of Chongqing Medical University; Chongqing China
| | - Gang Li
- Division of Cardiology, Department of Geriatrics; The First Affiliated Hospital of Chongqing Medical University; Chongqing China
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Joki Y, Ohashi K, Yuasa D, Shibata R, Kataoka Y, Kambara T, Uemura Y, Matsuo K, Hayakawa S, Hiramatsu-Ito M, Kanemura N, Ito M, Ogawa H, Daida H, Murohara T, Ouchi N. Neuron-derived neurotrophic factor ameliorates adverse cardiac remodeling after experimental myocardial infarction. Circ Heart Fail 2015; 8:342-51. [PMID: 25654972 DOI: 10.1161/circheartfailure.114.001647] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
BACKGROUND Myocardial infarction (MI) is one of the major causes of death worldwide. Chronic heart failure is a serious complication of MI that leads to poor prognosis. We recently found that neuron-derived neurotrophic factor (NDNF) is a proangiogenic secretory protein that is upregulated in ischemic skeletal muscle. Here, we examined whether NDNF modulates cardiac remodeling in response to chronic ischemia. METHODS AND RESULTS C57BL/6J wild-type mice were subjected to the permanent ligation of the left anterior descending coronary artery to create MI. Adenoviral vectors expressing NDNF or β-galactosidase (control) were intramuscularly injected into mice 3 days before permanent left anterior descending coronary artery ligation. Intramuscular administration of adenoviral vectors expressing NDNF to mice resulted in increased levels of circulating NDNF. Adenoviral vectors expressing NDNF administration improved left ventricular systolic dysfunction and dilatation after MI surgery. Moreover, adenoviral vectors expressing NDNF enhanced capillary formation and reduced cardiomyocyte apoptosis and hypertrophy in the post-MI hearts. Treatment of cultured cardiomyocytes with recombinant NDNF protein led to reduced apoptosis under conditions of hypoxia. NDNF also promoted the phosphorylation of Akt and focal adhesion kinase in cardiomyocytes. Blockade of focal adhesion kinase activation blocked the stimulatory effects of NDNF on cardiomyocyte survival and Akt phosphorylation. Similarly, treatment of cultured endothelial cells with NDNF protein led to enhancement of network formation and Akt phosphorylation, which was diminished by focal adhesion kinase inhibition. CONCLUSIONS These data suggest that NDNF ameliorates adverse myocardial remodeling after MI by its abilities to enhance myocyte survival and angiogenesis in the heart through focal adhesion kinase/Akt-dependent mechanisms.
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Affiliation(s)
- Yusuke Joki
- From the Departments of Cardiology (Y.J., D.Y., R.S., Y.K., T.K., Y.U., K.M., S.H., M.H.-I., N.K., M.I., H.O., T.M.) and Molecular Cardiovascular Medicine (K.O., N.O.), Nagoya University Graduate School of Medicine, Japan; and Department of Cardiology, Juntendo University School of Medicine, Tokyo, Japan (Y.J., H.D.)
| | - Koji Ohashi
- From the Departments of Cardiology (Y.J., D.Y., R.S., Y.K., T.K., Y.U., K.M., S.H., M.H.-I., N.K., M.I., H.O., T.M.) and Molecular Cardiovascular Medicine (K.O., N.O.), Nagoya University Graduate School of Medicine, Japan; and Department of Cardiology, Juntendo University School of Medicine, Tokyo, Japan (Y.J., H.D.).
| | - Daisuke Yuasa
- From the Departments of Cardiology (Y.J., D.Y., R.S., Y.K., T.K., Y.U., K.M., S.H., M.H.-I., N.K., M.I., H.O., T.M.) and Molecular Cardiovascular Medicine (K.O., N.O.), Nagoya University Graduate School of Medicine, Japan; and Department of Cardiology, Juntendo University School of Medicine, Tokyo, Japan (Y.J., H.D.)
| | - Rei Shibata
- From the Departments of Cardiology (Y.J., D.Y., R.S., Y.K., T.K., Y.U., K.M., S.H., M.H.-I., N.K., M.I., H.O., T.M.) and Molecular Cardiovascular Medicine (K.O., N.O.), Nagoya University Graduate School of Medicine, Japan; and Department of Cardiology, Juntendo University School of Medicine, Tokyo, Japan (Y.J., H.D.)
| | - Yoshiyuki Kataoka
- From the Departments of Cardiology (Y.J., D.Y., R.S., Y.K., T.K., Y.U., K.M., S.H., M.H.-I., N.K., M.I., H.O., T.M.) and Molecular Cardiovascular Medicine (K.O., N.O.), Nagoya University Graduate School of Medicine, Japan; and Department of Cardiology, Juntendo University School of Medicine, Tokyo, Japan (Y.J., H.D.)
| | - Takahiro Kambara
- From the Departments of Cardiology (Y.J., D.Y., R.S., Y.K., T.K., Y.U., K.M., S.H., M.H.-I., N.K., M.I., H.O., T.M.) and Molecular Cardiovascular Medicine (K.O., N.O.), Nagoya University Graduate School of Medicine, Japan; and Department of Cardiology, Juntendo University School of Medicine, Tokyo, Japan (Y.J., H.D.)
| | - Yusuke Uemura
- From the Departments of Cardiology (Y.J., D.Y., R.S., Y.K., T.K., Y.U., K.M., S.H., M.H.-I., N.K., M.I., H.O., T.M.) and Molecular Cardiovascular Medicine (K.O., N.O.), Nagoya University Graduate School of Medicine, Japan; and Department of Cardiology, Juntendo University School of Medicine, Tokyo, Japan (Y.J., H.D.)
| | - Kazuhiro Matsuo
- From the Departments of Cardiology (Y.J., D.Y., R.S., Y.K., T.K., Y.U., K.M., S.H., M.H.-I., N.K., M.I., H.O., T.M.) and Molecular Cardiovascular Medicine (K.O., N.O.), Nagoya University Graduate School of Medicine, Japan; and Department of Cardiology, Juntendo University School of Medicine, Tokyo, Japan (Y.J., H.D.)
| | - Satoko Hayakawa
- From the Departments of Cardiology (Y.J., D.Y., R.S., Y.K., T.K., Y.U., K.M., S.H., M.H.-I., N.K., M.I., H.O., T.M.) and Molecular Cardiovascular Medicine (K.O., N.O.), Nagoya University Graduate School of Medicine, Japan; and Department of Cardiology, Juntendo University School of Medicine, Tokyo, Japan (Y.J., H.D.)
| | - Mizuho Hiramatsu-Ito
- From the Departments of Cardiology (Y.J., D.Y., R.S., Y.K., T.K., Y.U., K.M., S.H., M.H.-I., N.K., M.I., H.O., T.M.) and Molecular Cardiovascular Medicine (K.O., N.O.), Nagoya University Graduate School of Medicine, Japan; and Department of Cardiology, Juntendo University School of Medicine, Tokyo, Japan (Y.J., H.D.)
| | - Noriyoshi Kanemura
- From the Departments of Cardiology (Y.J., D.Y., R.S., Y.K., T.K., Y.U., K.M., S.H., M.H.-I., N.K., M.I., H.O., T.M.) and Molecular Cardiovascular Medicine (K.O., N.O.), Nagoya University Graduate School of Medicine, Japan; and Department of Cardiology, Juntendo University School of Medicine, Tokyo, Japan (Y.J., H.D.)
| | - Masanori Ito
- From the Departments of Cardiology (Y.J., D.Y., R.S., Y.K., T.K., Y.U., K.M., S.H., M.H.-I., N.K., M.I., H.O., T.M.) and Molecular Cardiovascular Medicine (K.O., N.O.), Nagoya University Graduate School of Medicine, Japan; and Department of Cardiology, Juntendo University School of Medicine, Tokyo, Japan (Y.J., H.D.)
| | - Hayato Ogawa
- From the Departments of Cardiology (Y.J., D.Y., R.S., Y.K., T.K., Y.U., K.M., S.H., M.H.-I., N.K., M.I., H.O., T.M.) and Molecular Cardiovascular Medicine (K.O., N.O.), Nagoya University Graduate School of Medicine, Japan; and Department of Cardiology, Juntendo University School of Medicine, Tokyo, Japan (Y.J., H.D.)
| | - Hiroyuki Daida
- From the Departments of Cardiology (Y.J., D.Y., R.S., Y.K., T.K., Y.U., K.M., S.H., M.H.-I., N.K., M.I., H.O., T.M.) and Molecular Cardiovascular Medicine (K.O., N.O.), Nagoya University Graduate School of Medicine, Japan; and Department of Cardiology, Juntendo University School of Medicine, Tokyo, Japan (Y.J., H.D.)
| | - Toyoaki Murohara
- From the Departments of Cardiology (Y.J., D.Y., R.S., Y.K., T.K., Y.U., K.M., S.H., M.H.-I., N.K., M.I., H.O., T.M.) and Molecular Cardiovascular Medicine (K.O., N.O.), Nagoya University Graduate School of Medicine, Japan; and Department of Cardiology, Juntendo University School of Medicine, Tokyo, Japan (Y.J., H.D.)
| | - Noriyuki Ouchi
- From the Departments of Cardiology (Y.J., D.Y., R.S., Y.K., T.K., Y.U., K.M., S.H., M.H.-I., N.K., M.I., H.O., T.M.) and Molecular Cardiovascular Medicine (K.O., N.O.), Nagoya University Graduate School of Medicine, Japan; and Department of Cardiology, Juntendo University School of Medicine, Tokyo, Japan (Y.J., H.D.).
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Pereira MBM, Santos AM, Gonçalves DC, Cardoso AC, Consonni SR, Gozzo FC, Oliveira PS, Pereira AHM, Figueiredo AR, Tiroli-Cepeda AO, Ramos CHI, de Thomaz AA, Cesar CL, Franchini KG. αB-crystallin interacts with and prevents stress-activated proteolysis of focal adhesion kinase by calpain in cardiomyocytes. Nat Commun 2014; 5:5159. [PMID: 25319025 DOI: 10.1038/ncomms6159] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2014] [Accepted: 09/05/2014] [Indexed: 12/14/2022] Open
Abstract
Focal adhesion kinase (FAK) contributes to cellular homeostasis under stress conditions. Here we show that αB-crystallin interacts with and confers protection to FAK against calpain-mediated proteolysis in cardiomyocytes. A hydrophobic patch mapped between helices 1 and 4 of the FAK FAT domain was found to bind to the β4-β8 groove of αB-crystallin. Such an interaction requires FAK tyrosine 925 and is enhanced following its phosphorylation by Src, which occurs upon FAK stimulation. αB-crystallin silencing results in calpain-dependent FAK depletion and in the increased apoptosis of cardiomyocytes in response to mechanical stress. FAK overexpression protects cardiomyocytes depleted of αB-crystallin against the stretch-induced apoptosis. Consistently, load-induced apoptosis is blunted in the hearts from cardiac-specific FAK transgenic mice transiently depleted of αB-crystallin by RNA interference. These studies define a role for αB-crystallin in controlling FAK function and cardiomyocyte survival through the prevention of calpain-mediated degradation of FAK.
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Affiliation(s)
- Michelle B M Pereira
- Brazilian National Laboratory for Biosciences, Center for Research in Energy and Materials, Campinas, São Paulo 13084-971, Brazil
| | - Aline M Santos
- Brazilian National Laboratory for Biosciences, Center for Research in Energy and Materials, Campinas, São Paulo 13084-971, Brazil
| | - Danieli C Gonçalves
- Brazilian National Laboratory for Biosciences, Center for Research in Energy and Materials, Campinas, São Paulo 13084-971, Brazil
| | - Alisson C Cardoso
- Brazilian National Laboratory for Biosciences, Center for Research in Energy and Materials, Campinas, São Paulo 13084-971, Brazil
| | - Sílvio R Consonni
- Brazilian National Laboratory for Biosciences, Center for Research in Energy and Materials, Campinas, São Paulo 13084-971, Brazil
| | - Fabio C Gozzo
- Chemistry Institute, University of Campinas, Campinas, São Paulo 13083-970, Brazil
| | - Paulo S Oliveira
- Brazilian National Laboratory for Biosciences, Center for Research in Energy and Materials, Campinas, São Paulo 13084-971, Brazil
| | - Ana Helena M Pereira
- Brazilian National Laboratory for Biosciences, Center for Research in Energy and Materials, Campinas, São Paulo 13084-971, Brazil
| | - Alana R Figueiredo
- Chemistry Institute, University of Campinas, Campinas, São Paulo 13083-970, Brazil
| | - Ana O Tiroli-Cepeda
- Chemistry Institute, University of Campinas, Campinas, São Paulo 13083-970, Brazil
| | - Carlos H I Ramos
- Chemistry Institute, University of Campinas, Campinas, São Paulo 13083-970, Brazil
| | - André A de Thomaz
- Gleb Wataghin Physics Institute, University of Campinas, Campinas, São Paulo 13083-859, Brazil
| | - Carlos L Cesar
- Gleb Wataghin Physics Institute, University of Campinas, Campinas, São Paulo 13083-859, Brazil
| | - Kleber G Franchini
- 1] Brazilian National Laboratory for Biosciences, Center for Research in Energy and Materials, Campinas, São Paulo 13084-971, Brazil [2] Department of Internal Medicine, School of Medicine, University of Campinas, Campinas, São Paulo 13081-970, Brazil
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43
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Winograd-Katz SE, Fässler R, Geiger B, Legate KR. The integrin adhesome: from genes and proteins to human disease. Nat Rev Mol Cell Biol 2014; 15:273-88. [PMID: 24651544 DOI: 10.1038/nrm3769] [Citation(s) in RCA: 438] [Impact Index Per Article: 43.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
The adhesive interactions of cells with their environment through the integrin family of transmembrane receptors have key roles in regulating multiple aspects of cellular physiology, including cell proliferation, viability, differentiation and migration. Consequently, failure to establish functional cell adhesions, and thus the assembly of associated cytoplasmic scaffolding and signalling networks, can have severe pathological effects. The roles of specific constituents of integrin-mediated adhesions, which are collectively known as the 'integrin adhesome', in diverse pathological states are becoming clear. Indeed, the prominence of mutations in specific adhesome molecules in various human diseases is now appreciated, and experimental as well as in silico approaches provide insights into the molecular mechanisms underlying these pathological conditions.
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Affiliation(s)
- Sabina E Winograd-Katz
- Department of Molecular Cell Biology, Weizmann Institute of Science, Rehovot 76100, Israel
| | - Reinhard Fässler
- Department of Molecular Medicine, Max Planck Institute of Biochemistry, 82152 Martinsried, Germany
| | - Benjamin Geiger
- Department of Molecular Cell Biology, Weizmann Institute of Science, Rehovot 76100, Israel
| | - Kyle R Legate
- 1] Department of Molecular Medicine, Max Planck Institute of Biochemistry, 82152 Martinsried, Germany. [2] Center for Nanosciences, Department of Applied Physics, Ludwig-Maximilians University, 80799 Munich, Germany
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44
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Abstract
Integrins are heterodimeric, transmembrane receptors that are expressed in all cells, including those in the heart. They participate in multiple critical cellular processes including adhesion, extracellular matrix organization, signaling, survival, and proliferation. Particularly relevant for a contracting muscle cell, integrins are mechanotransducers, translating mechanical to biochemical information. Although it is likely that cardiovascular clinicians and scientists have the highest recognition of integrins in the cardiovascular system from drugs used to inhibit platelet aggregation, the focus of this article will be on the role of integrins specifically in the cardiac myocyte. After a general introduction to integrin biology, the article will discuss important work on integrin signaling, mechanotransduction, and lessons learned about integrin function from a range of model organisms. Then we will detail work on integrin-related proteins in the myocyte, how integrins may interact with ion channels and mediate viral uptake into cells, and also play a role in stem cell biology. Finally, we will discuss directions for future study.
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Affiliation(s)
- Sharon Israeli-Rosenberg
- Department of Medicine, Cardiology, UCSD School of Medicine, La Jolla, CA, USA, and Veterans Administration San Diego Healthcare System, San Diego, CA, USA
| | - Ana Maria Manso
- Department of Medicine, Cardiology, UCSD School of Medicine, La Jolla, CA, USA, and Veterans Administration San Diego Healthcare System, San Diego, CA, USA
| | - Hideshi Okada
- Department of Medicine, Cardiology, UCSD School of Medicine, La Jolla, CA, USA, and Veterans Administration San Diego Healthcare System, San Diego, CA, USA
| | - Robert S Ross
- Department of Medicine, Cardiology, UCSD School of Medicine, La Jolla, CA, USA, and Veterans Administration San Diego Healthcare System, San Diego, CA, USA
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45
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Samarel AM. Focal adhesion signaling in heart failure. Pflugers Arch 2014; 466:1101-11. [PMID: 24515292 DOI: 10.1007/s00424-014-1456-8] [Citation(s) in RCA: 38] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/26/2013] [Revised: 01/15/2014] [Accepted: 01/19/2014] [Indexed: 11/28/2022]
Abstract
In this brief review, recent evidence is presented to indicate a role for specific components of the cardiomyocyte costamere (and its related structure the focal adhesion complex of cultured cardiomyocytes) in initiating and sustaining the aberrant signal transduction that contributes to myocardial remodeling and the progression to heart failure (HF). Special attention is devoted to the focal adhesion kinase family of nonreceptor protein tyrosine kinases in bidirectional signal transduction during cardiac remodeling and HF progression. Finally, some speculations and directions for future study are provided for this rapidly developing field of research.
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Affiliation(s)
- Allen M Samarel
- The Cardiovascular Institute and the Department of Medicine, Loyola University Chicago Stritch School of Medicine, Building 110, Rm 5222, 2160 South First Avenue, Maywood, IL, 60153, USA,
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46
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Cheng Z, DiMichele LA, Rojas M, Vaziri C, Mack CP, Taylor JM. Focal adhesion kinase antagonizes doxorubicin cardiotoxicity via p21(Cip1.). J Mol Cell Cardiol 2014; 67:1-11. [PMID: 24342076 PMCID: PMC4237309 DOI: 10.1016/j.yjmcc.2013.12.002] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/17/2013] [Revised: 11/27/2013] [Accepted: 12/04/2013] [Indexed: 11/24/2022]
Abstract
Clinical application of potent anthracycline anticancer drugs, especially doxorubicin (DOX), is limited by a toxic cardiac side effect that is not fully understood and preventive strategies are yet to be established. Studies in genetically modified mice have demonstrated that focal adhesion kinase (FAK) plays a key role in regulating adaptive responses of the adult myocardium to pathological stimuli through activation of intracellular signaling cascades that facilitate cardiomyocyte growth and survival. The objective of this study was to determine if targeted myocardial FAK activation could protect the heart from DOX-induced de-compensation and to characterize the underlying mechanisms. To this end, mice with myocyte-restricted FAK knock-out (MFKO) or myocyte-specific expression of an active FAK variant (termed SuperFAK) were subjected to DOX treatment. FAK depletion enhanced susceptibility to DOX-induced myocyte apoptosis and cardiac dysfunction, while elevated FAK activity provided remarkable cardioprotection. Our mec6hanistic studies reveal a heretofore unappreciated role for the protective cyclin-dependent kinase inhibitor p21 in the repression of the pro-apoptotic BH3-only protein Bim and the maintenance of mitochondrial integrity and myocyte survival. DOX treatment induced proteasomal degradation of p21, which exacerbated mitochondrial dysfunction and cardiomyocyte apoptosis. FAK was both necessary and sufficient for maintaining p21 levels following DOX treatment and depletion of p21 compromised FAK-dependent protection from DOX. These findings identify p21 as a key determinant of DOX resistance downstream of FAK in cardiomyocytes and indicate that cardiac-restricted enhancement of the FAK/p21 signaling axis might be an effective strategy to preserve myocardial function in patients receiving anthracycline chemotherapy.
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Affiliation(s)
- Zhaokang Cheng
- Department of Pathology, University of North Carolina, Chapel Hill, NC 27599, USA
| | - Laura A DiMichele
- Department of Pathology, University of North Carolina, Chapel Hill, NC 27599, USA
| | - Mauricio Rojas
- McAllister Heart Institute, University of North Carolina, Chapel Hill, NC 27599, USA
| | - Cyrus Vaziri
- Department of Pathology, University of North Carolina, Chapel Hill, NC 27599, USA
| | - Christopher P Mack
- Department of Pathology, University of North Carolina, Chapel Hill, NC 27599, USA; McAllister Heart Institute, University of North Carolina, Chapel Hill, NC 27599, USA
| | - Joan M Taylor
- Department of Pathology, University of North Carolina, Chapel Hill, NC 27599, USA; McAllister Heart Institute, University of North Carolina, Chapel Hill, NC 27599, USA.
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Dai J, Matsui T, Abel ED, Dedhar S, Gerszten RE, Seidman CE, Seidman JG, Rosenzweig A. Deep sequence analysis of gene expression identifies osteopontin as a downstream effector of integrin-linked kinase (ILK) in cardiac-specific ILK knockout mice. Circ Heart Fail 2013; 7:184-93. [PMID: 24319095 DOI: 10.1161/circheartfailure.113.000649] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
BACKGROUND Integrin-linked kinase (ILK) is a serine/threonine kinase that has been linked to human and experimental heart failure, but its role in the heart is not fully understood. METHODS AND RESULTS To define the role of cardiomyocyte ILK, we generated cardiac-specific ILK knockout mice using α-myosin heavy chain-driven Cre expression. Cardiac-specific ILK knockout mice spontaneously developed lethal dilated cardiomyopathy and heart failure with an early increase in apoptosis, fibrosis, and cardiac inflammation. To identify downstream effectors, we used deep sequence analysis of gene expression to compare comprehensive transcriptional profiles of cardiac-specific ILK knockout and wild-type hearts from 10-day-old mice before the development of cardiac dysfunction. Approximately 2×10(6) cDNA clones from each genotype were sequenced, corresponding to 33 274 independent transcripts. A total of 93 genes were altered, using nominal thresholds of >1.4-fold change and P<0.001. The most highly upregulated gene was osteopontin (47-fold increase; P=9.6×10(-45)), an inflammatory chemokine implicated in heart failure pathophysiology. ILK also regulated osteopontin expression in cardiomyocytes in vitro. Importantly, blocking antibodies to osteopontin mitigated but did not fully rescue the functional decline in cardiac-specific ILK knockout mice. CONCLUSIONS Cardiomyocyte-specific ILK deletion leads to a lethal cardiomyopathy characterized by cardiomyocyte death, fibrosis, and inflammation. Comprehensive profiling identifies ILK-dependent transcriptional effects and implicates osteopontin as a contributor to these phenotypes.
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Affiliation(s)
- Jing Dai
- Cardiovascular Division, Beth Israel Deaconess Medical Center, Boston, MA
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48
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Liu Y, Jin Y, Li J, Seto E, Kuo E, Yu W, Schwartz RJ, Blazo M, Zhang SL, Peng X. Inactivation of Cdc42 in neural crest cells causes craniofacial and cardiovascular morphogenesis defects. Dev Biol 2013; 383:239-52. [PMID: 24056078 DOI: 10.1016/j.ydbio.2013.09.013] [Citation(s) in RCA: 36] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2013] [Revised: 09/06/2013] [Accepted: 09/07/2013] [Indexed: 01/15/2023]
Abstract
Neural crest cells (NCCs) are physically responsible for craniofacial skeleton formation, pharyngeal arch artery remodeling and cardiac outflow tract septation during vertebrate development. Cdc42 (cell division cycle 42) is a Rho family small GTP-binding protein that works as a molecular switch to regulate cytoskeleton remodeling and the establishment of cell polarity. To investigate the role of Cdc42 in NCCs during embryonic development, we deleted Cdc42 in NCCs by crossing Cdc42 flox mice with Wnt1-cre mice. We found that the inactivation of Cdc42 in NCCs caused embryonic lethality with craniofacial deformities and cardiovascular developmental defects. Specifically, Cdc42 NCC knockout embryos showed fully penetrant cleft lips and short snouts. Alcian Blue and Alizarin Red staining of the cranium exhibited an unfused nasal capsule and palatine in the mutant embryos. India ink intracardiac injection analysis displayed a spectrum of cardiovascular developmental defects, including persistent truncus arteriosus, hypomorphic pulmonary arteries, interrupted aortic arches, and right-sided aortic arches. To explore the underlying mechanisms of Cdc42 in the formation of the great blood vessels, we generated Wnt1Cre-Cdc42-Rosa26 reporter mice. By beta-galactosidase staining, a subpopulation of Cdc42-null NCCs was observed halting in their migration midway from the pharyngeal arches to the conotruncal cushions. Phalloidin staining revealed dispersed, shorter and disoriented stress fibers in Cdc42-null NCCs. Finally, we demonstrated that the inactivation of Cdc42 in NCCs impaired bone morphogenetic protein 2 (BMP2)-induced NCC cytoskeleton remodeling and migration. In summary, our results demonstrate that Cdc42 plays an essential role in NCC migration, and inactivation of Cdc42 in NCCs impairs craniofacial and cardiovascular development in mice.
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Affiliation(s)
- Yang Liu
- Department of Medical Physiology, College of Medicine, Texas A & M University Health Science Center, Temple, TX 76504, USA
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Huang Y, Xia J, Zheng J, Geng B, Liu P, Yu F, Liu B, Zhang H, Xu M, Ye P, Zhu Y, Xu Q, Wang X, Kong W. Deficiency of cartilage oligomeric matrix protein causes dilated cardiomyopathy. Basic Res Cardiol 2013; 108:374. [DOI: 10.1007/s00395-013-0374-9] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/17/2013] [Revised: 07/19/2013] [Accepted: 07/23/2013] [Indexed: 01/08/2023]
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Zhang X, Li G, Zhang L, Yang D, Zhang Z, Yan A, Linghu H. C3G overexpression promotes the survival of rat-derived H9C2 cardiomyocytes by p-ERK1/2. Cell Biol Int 2013; 37:1106-13. [PMID: 23686869 DOI: 10.1002/cbin.10136] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2012] [Accepted: 04/26/2013] [Indexed: 11/08/2022]
Affiliation(s)
| | - Gang Li
- Division of Cardiology, Department of Geriatrics; The First Affiliated Hospital of Chongqing Medical University; No. 1 Yixueyuan Road; Yuzhong District, Chongqing; 400016; China
| | | | | | | | | | - Hua Linghu
- Department of Gynecology and Obstetrics; The First Affiliated Hospital of Chongqing Medical University; Chongqing; 400016; China
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