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Firouzi F, Echeagaray O, Esquer C, Gude NA, Sussman MA. 'Youthful' phenotype of c-Kit + cardiac fibroblasts. Cell Mol Life Sci 2022; 79:424. [PMID: 35841449 PMCID: PMC10544823 DOI: 10.1007/s00018-022-04449-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2022] [Revised: 06/04/2022] [Accepted: 06/24/2022] [Indexed: 01/10/2023]
Abstract
Cardiac fibroblast (CF) population heterogeneity and plasticity present a challenge for categorization of biological and functional properties. Distinct molecular markers and associated signaling pathways provide valuable insight for CF biology and interventional strategies to influence injury response and aging-associated remodeling. Receptor tyrosine kinase c-Kit mediates cell survival, proliferation, migration, and is activated by pathological injury. However, the biological significance of c-Kit within CF population has not been addressed. An inducible reporter mouse detects c-Kit promoter activation with Enhanced Green Fluorescent Protein (EGFP) expression in cardiac cells. Coincidence of EGFP and c-Kit with the DDR2 fibroblast marker was confirmed using flow cytometry and immunohistochemistry. Subsequently, CFs expressing DDR2 with or without c-Kit was isolated and characterized. A subset of DDR2+ CFs also express c-Kit with coincidence in ~ 8% of total cardiac interstitial cells (CICs). Aging is associated with decreased number of c-Kit expressing DDR2+ CFs, whereas pathological injury induces c-Kit and DDR2 as well as the frequency of coincident expression in CICs. scRNA-Seq profiling reveals the transcriptome of c-Kit expressing CFs as cells with transitional phenotype. Cultured cardiac DDR2+ fibroblasts that are c-Kit+ exhibit morphological and functional characteristics consistent with youthful phenotypes compared to c-Kit- cells. Mechanistically, c-Kit expression correlates with signaling implicated in proliferation and cell migration, including phospho-ERK and pro-caspase 3. The phenotype of c-kit+ on DDR2+ CFs correlates with multiple characteristics of 'youthful' cells. To our knowledge, this represents the first evaluation of c-Kit biology within DDR2+ CF population and provides a fundamental basis for future studies to influence myocardial biology, response to pathological injury and physiological aging.
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Affiliation(s)
- Fareheh Firouzi
- SDSU Integrated Regenerative Research Institute and Biology Department, San Diego State University, 5500 Campanile Drive, San Diego, CA, 92182, USA
| | - Oscar Echeagaray
- SDSU Integrated Regenerative Research Institute and Biology Department, San Diego State University, 5500 Campanile Drive, San Diego, CA, 92182, USA
| | - Carolina Esquer
- SDSU Integrated Regenerative Research Institute and Biology Department, San Diego State University, 5500 Campanile Drive, San Diego, CA, 92182, USA
| | - Natalie A Gude
- SDSU Integrated Regenerative Research Institute and Biology Department, San Diego State University, 5500 Campanile Drive, San Diego, CA, 92182, USA
| | - Mark A Sussman
- SDSU Integrated Regenerative Research Institute and Biology Department, San Diego State University, 5500 Campanile Drive, San Diego, CA, 92182, USA.
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2
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Bachmann JC, Baumgart SJ, Uryga AK, Bosteen MH, Borghetti G, Nyberg M, Herum KM. Fibrotic Signaling in Cardiac Fibroblasts and Vascular Smooth Muscle Cells: The Dual Roles of Fibrosis in HFpEF and CAD. Cells 2022; 11:1657. [PMID: 35626694 PMCID: PMC9139546 DOI: 10.3390/cells11101657] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2022] [Revised: 05/12/2022] [Accepted: 05/13/2022] [Indexed: 12/11/2022] Open
Abstract
Patients with heart failure with preserved ejection fraction (HFpEF) and atherosclerosis-driven coronary artery disease (CAD) will have ongoing fibrotic remodeling both in the myocardium and in atherosclerotic plaques. However, the functional consequences of fibrosis differ for each location. Thus, cardiac fibrosis leads to myocardial stiffening, thereby compromising cardiac function, while fibrotic remodeling stabilizes the atherosclerotic plaque, thereby reducing the risk of plaque rupture. Although there are currently no drugs targeting cardiac fibrosis, it is a field under intense investigation, and future drugs must take these considerations into account. To explore similarities and differences of fibrotic remodeling at these two locations of the heart, we review the signaling pathways that are activated in the main extracellular matrix (ECM)-producing cells, namely human cardiac fibroblasts (CFs) and vascular smooth muscle cells (VSMCs). Although these signaling pathways are highly overlapping and context-dependent, effects on ECM remodeling mainly act through two core signaling cascades: TGF-β and Angiotensin II. We complete this by summarizing the knowledge gained from clinical trials targeting these two central fibrotic pathways.
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Affiliation(s)
| | | | | | | | | | | | - Kate M. Herum
- Research and Early Development, Novo Nordisk A/S, Novo Nordisk Park, 2760 Maaloev, Denmark; (J.C.B.); (S.J.B.); (A.K.U.); (M.H.B.); (G.B.); (M.N.)
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3
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Hou J, Huang S, Long Y, Feng K, Shang L, Zhou Z, Yue Y, Huang X, Chen G, Wu Z. Disheveled binding antagonist of β-catenin 1 interacted with β-catenin and connexin 43 in human-induced pluripotent stem cells-derived cardiomyocytes. Bioengineered 2022; 13:11594-11601. [PMID: 35510412 PMCID: PMC9275970 DOI: 10.1080/21655979.2022.2070448] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022] Open
Abstract
Previously, we demonstrated that the disheveled binding antagonist of β-catenin 1 (DACT1) was involved in atrial fibrillation by regulating the reorganization of connexin 43 and β-catenin in cardiomyocytes. Little is known, however, about DACT1 in human normal myocardial cells. Therefore, we used cardiomyocytes (CMs) derived from human embryonic stem cells (ESCs) and induced pluripotent stem cells (iPSCs) to investigate the role of DACT1 and its connection with β-catenin and connexin 43. While the ESC-CMs and iPSC-CMs were differentiated using commercial differentiation kits, the cardiac-specific markers were detected by immunofluorescence. The expression level of DACT1 was detected using western blotting, whereas the interaction of DACT1 and connexin 43 or β-catenin was detected by immunofluorescence and co-immunoprecipitation (co-IP) assays. Both H1-CMs and SF-CMs were immunostained for cardiac-specific markers, including Troponin I, Troponin T, α-actinin, NKX2.5, and GATA6. While DACT1 was not expressed in both H1 ESCs and SF-iPSCs, it was, however, highly expressed in differentiated CMs, being also localized in the cytoplasm and the nucleus of differentiated CMs. Interestingly, the DACT1 expression in different nuclei was different in the same multinucleated cell. Moreover, DACT1 colocalized with β-catenin in both the cytoplasm and nucleus of differentiated CMs, and it also colocalized with connexin 43 in the perinuclear region and the gap junctions of differentiated CMs. Co-IP results showed that DACT1 could directly bind to β-catenin and connexin 43. Taken together, DACT1 interacted with β-catenin and connexin 43 in human-induced pluripotent stem cells-derived cardiomyocytes.
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Affiliation(s)
- Jian Hou
- Department of Cardiac Surgery, The First Affiliated Hospital of Sun Yat-sen University, Guangzhou, China.,Nhc Key Laboratory of Assisted Circulation, Sun Yat-sen University, Guangzhou, China
| | - Suiqing Huang
- Department of Cardiac Surgery, The First Affiliated Hospital of Sun Yat-sen University, Guangzhou, China.,Nhc Key Laboratory of Assisted Circulation, Sun Yat-sen University, Guangzhou, China
| | - Yan Long
- Department of Cardiac Surgery, The First Affiliated Hospital of Sun Yat-sen University, Guangzhou, China.,Nhc Key Laboratory of Assisted Circulation, Sun Yat-sen University, Guangzhou, China
| | - Kangni Feng
- Department of Cardiac Surgery, The First Affiliated Hospital of Sun Yat-sen University, Guangzhou, China
| | - Liqun Shang
- Department of Cardiac Surgery, The First Affiliated Hospital of Sun Yat-sen University, Guangzhou, China.,Nhc Key Laboratory of Assisted Circulation, Sun Yat-sen University, Guangzhou, China
| | - Zhuoming Zhou
- Department of Cardiac Surgery, The First Affiliated Hospital of Sun Yat-sen University, Guangzhou, China.,Nhc Key Laboratory of Assisted Circulation, Sun Yat-sen University, Guangzhou, China
| | - Yuan Yue
- Department of Cardiac Surgery, The First Affiliated Hospital of Sun Yat-sen University, Guangzhou, China.,Nhc Key Laboratory of Assisted Circulation, Sun Yat-sen University, Guangzhou, China
| | - Xiaolin Huang
- Department of Cardiac Surgery, The First Affiliated Hospital of Sun Yat-sen University, Guangzhou, China.,Nhc Key Laboratory of Assisted Circulation, Sun Yat-sen University, Guangzhou, China
| | - Guangxian Chen
- Department of Cardiac Surgery, The First Affiliated Hospital of Sun Yat-sen University, Guangzhou, China.,Nhc Key Laboratory of Assisted Circulation, Sun Yat-sen University, Guangzhou, China
| | - Zhongkai Wu
- Department of Cardiac Surgery, The First Affiliated Hospital of Sun Yat-sen University, Guangzhou, China.,Nhc Key Laboratory of Assisted Circulation, Sun Yat-sen University, Guangzhou, China
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4
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A New Hypothetical Concept in Metabolic Understanding of Cardiac Fibrosis: Glycolysis Combined with TGF-β and KLF5 Signaling. Int J Mol Sci 2022; 23:ijms23084302. [PMID: 35457114 PMCID: PMC9027193 DOI: 10.3390/ijms23084302] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2022] [Revised: 04/10/2022] [Accepted: 04/11/2022] [Indexed: 12/16/2022] Open
Abstract
The accumulation of fibrosis in cardiac tissues is one of the leading causes of heart failure. The principal cellular effectors in cardiac fibrosis are activated fibroblasts and myofibroblasts, which serve as the primary source of matrix proteins. TGF-β signaling pathways play a prominent role in cardiac fibrosis. The control of TGF-β by KLF5 in cardiac fibrosis has been demonstrated for modulating cardiovascular remodeling. Since the expression of KLF5 is reduced, the accumulation of fibrosis diminishes. Because the molecular mechanism of fibrosis is still being explored, there are currently few options for effectively reducing or reversing it. Studying metabolic alterations is considered an essential process that supports the explanation of fibrosis in a variety of organs and especially the glycolysis alteration in the heart. However, the interplay among the main factors involved in fibrosis pathogenesis, namely TGF-β, KLF5, and the metabolic process in glycolysis, is still indistinct. In this review, we explain what we know about cardiac fibroblasts and how they could help with heart repair. Moreover, we hypothesize and summarize the knowledge trend on the molecular mechanism of TGF-β, KLF5, the role of the glycolysis pathway in fibrosis, and present the future therapy of cardiac fibrosis. These studies may target therapies that could become important strategies for fibrosis reduction in the future.
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5
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Samarelli AV, Tonelli R, Heijink I, Martin Medina A, Marchioni A, Bruzzi G, Castaniere I, Andrisani D, Gozzi F, Manicardi L, Moretti A, Cerri S, Fantini R, Tabbì L, Nani C, Mastrolia I, Weiss DJ, Dominici M, Clini E. Dissecting the Role of Mesenchymal Stem Cells in Idiopathic Pulmonary Fibrosis: Cause or Solution. Front Pharmacol 2021; 12:692551. [PMID: 34290610 PMCID: PMC8287856 DOI: 10.3389/fphar.2021.692551] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2021] [Accepted: 06/21/2021] [Indexed: 12/15/2022] Open
Abstract
Idiopathic pulmonary fibrosis (IPF) is one of the most aggressive forms of idiopathic interstitial pneumonias, characterized by chronic and progressive fibrosis subverting the lung's architecture, pulmonary functional decline, progressive respiratory failure, and high mortality (median survival 3 years after diagnosis). Among the mechanisms associated with disease onset and progression, it has been hypothesized that IPF lungs might be affected either by a regenerative deficit of the alveolar epithelium or by a dysregulation of repair mechanisms in response to alveolar and vascular damage. This latter might be related to the progressive dysfunction and exhaustion of the resident stem cells together with a process of cellular and tissue senescence. The role of endogenous mesenchymal stromal/stem cells (MSCs) resident in the lung in the homeostasis of these mechanisms is still a matter of debate. Although endogenous MSCs may play a critical role in lung repair, they are also involved in cellular senescence and tissue ageing processes with loss of lung regenerative potential. In addition, MSCs have immunomodulatory properties and can secrete anti-fibrotic factors. Thus, MSCs obtained from other sources administered systemically or directly into the lung have been investigated for lung epithelial repair and have been explored as a potential therapy for the treatment of lung diseases including IPF. Given these multiple potential roles of MSCs, this review aims both at elucidating the role of resident lung MSCs in IPF pathogenesis and the role of administered MSCs from other sources for potential IPF therapies.
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Affiliation(s)
- Anna Valeria Samarelli
- Laboratory of Cell Therapies and Respiratory Medicine, Department of Medical and Surgical Sciences for Children and Adults University Hospital of Modena and Reggio Emilia, Modena, Italy
- University Hospital of Modena, Respiratory Diseases Unit, Department of Medical and Surgical Sciences, University of Modena Reggio Emilia, Modena, Italy
| | - Roberto Tonelli
- Laboratory of Cell Therapies and Respiratory Medicine, Department of Medical and Surgical Sciences for Children and Adults University Hospital of Modena and Reggio Emilia, Modena, Italy
- University Hospital of Modena, Respiratory Diseases Unit, Department of Medical and Surgical Sciences, University of Modena Reggio Emilia, Modena, Italy
- Clinical and Experimental Medicine PhD Program, University of Modena Reggio Emilia, Modena, Italy
| | - Irene Heijink
- University of Groningen, Departments of Pathology & Medical Biology and Pulmonology, GRIAC Research Institute, University Medical Center Groningen, Groningen, Netherlands
| | - Aina Martin Medina
- IdISBa (Institut d’Investigacio Sanitaria Illes Balears), Palma de Mallorca, Spain
| | - Alessandro Marchioni
- Laboratory of Cell Therapies and Respiratory Medicine, Department of Medical and Surgical Sciences for Children and Adults University Hospital of Modena and Reggio Emilia, Modena, Italy
- University Hospital of Modena, Respiratory Diseases Unit, Department of Medical and Surgical Sciences, University of Modena Reggio Emilia, Modena, Italy
| | - Giulia Bruzzi
- Laboratory of Cell Therapies and Respiratory Medicine, Department of Medical and Surgical Sciences for Children and Adults University Hospital of Modena and Reggio Emilia, Modena, Italy
- University Hospital of Modena, Respiratory Diseases Unit, Department of Medical and Surgical Sciences, University of Modena Reggio Emilia, Modena, Italy
| | - Ivana Castaniere
- Laboratory of Cell Therapies and Respiratory Medicine, Department of Medical and Surgical Sciences for Children and Adults University Hospital of Modena and Reggio Emilia, Modena, Italy
- University Hospital of Modena, Respiratory Diseases Unit, Department of Medical and Surgical Sciences, University of Modena Reggio Emilia, Modena, Italy
- Clinical and Experimental Medicine PhD Program, University of Modena Reggio Emilia, Modena, Italy
| | - Dario Andrisani
- Laboratory of Cell Therapies and Respiratory Medicine, Department of Medical and Surgical Sciences for Children and Adults University Hospital of Modena and Reggio Emilia, Modena, Italy
- University Hospital of Modena, Respiratory Diseases Unit, Department of Medical and Surgical Sciences, University of Modena Reggio Emilia, Modena, Italy
- Clinical and Experimental Medicine PhD Program, University of Modena Reggio Emilia, Modena, Italy
| | - Filippo Gozzi
- Laboratory of Cell Therapies and Respiratory Medicine, Department of Medical and Surgical Sciences for Children and Adults University Hospital of Modena and Reggio Emilia, Modena, Italy
- University Hospital of Modena, Respiratory Diseases Unit, Department of Medical and Surgical Sciences, University of Modena Reggio Emilia, Modena, Italy
- Clinical and Experimental Medicine PhD Program, University of Modena Reggio Emilia, Modena, Italy
| | - Linda Manicardi
- Laboratory of Cell Therapies and Respiratory Medicine, Department of Medical and Surgical Sciences for Children and Adults University Hospital of Modena and Reggio Emilia, Modena, Italy
- University Hospital of Modena, Respiratory Diseases Unit, Department of Medical and Surgical Sciences, University of Modena Reggio Emilia, Modena, Italy
| | - Antonio Moretti
- Laboratory of Cell Therapies and Respiratory Medicine, Department of Medical and Surgical Sciences for Children and Adults University Hospital of Modena and Reggio Emilia, Modena, Italy
- University Hospital of Modena, Respiratory Diseases Unit, Department of Medical and Surgical Sciences, University of Modena Reggio Emilia, Modena, Italy
| | - Stefania Cerri
- Laboratory of Cell Therapies and Respiratory Medicine, Department of Medical and Surgical Sciences for Children and Adults University Hospital of Modena and Reggio Emilia, Modena, Italy
- University Hospital of Modena, Respiratory Diseases Unit, Department of Medical and Surgical Sciences, University of Modena Reggio Emilia, Modena, Italy
| | - Riccardo Fantini
- University Hospital of Modena, Respiratory Diseases Unit, Department of Medical and Surgical Sciences, University of Modena Reggio Emilia, Modena, Italy
| | - Luca Tabbì
- University Hospital of Modena, Respiratory Diseases Unit, Department of Medical and Surgical Sciences, University of Modena Reggio Emilia, Modena, Italy
| | - Chiara Nani
- University Hospital of Modena, Respiratory Diseases Unit, Department of Medical and Surgical Sciences, University of Modena Reggio Emilia, Modena, Italy
| | - Ilenia Mastrolia
- Laboratory of Cellular Therapy, Program of Cell Therapy and Immuno-Oncology, Division of Oncology, Department of Medical and Surgical Sciences for Children & Adults, University Hospital of Modena and Reggio Emilia, Modena, Italy
| | - Daniel J. Weiss
- Department of Medicine, University of Vermont, Burlington, VT, United States
| | - Massimo Dominici
- Oncology Unit, University Hospital of Modena, University of Modena and Reggio Emilia, Modena, Italy
| | - Enrico Clini
- Laboratory of Cell Therapies and Respiratory Medicine, Department of Medical and Surgical Sciences for Children and Adults University Hospital of Modena and Reggio Emilia, Modena, Italy
- University Hospital of Modena, Respiratory Diseases Unit, Department of Medical and Surgical Sciences, University of Modena Reggio Emilia, Modena, Italy
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6
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Yoon H, Tang CM, Banerjee S, Yebra M, Noh S, Burgoyne AM, Torre JDL, Siena MD, Liu M, Klug LR, Choi YY, Hosseini M, Delgado AL, Wang Z, French RP, Lowy A, DeMatteo RP, Heinrich MC, Molinolo AA, Gutkind JS, Harismendy O, Sicklick JK. Cancer-associated fibroblast secretion of PDGFC promotes gastrointestinal stromal tumor growth and metastasis. Oncogene 2021; 40:1957-1973. [PMID: 33603171 PMCID: PMC7979540 DOI: 10.1038/s41388-021-01685-w] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2020] [Revised: 01/13/2021] [Accepted: 01/27/2021] [Indexed: 01/30/2023]
Abstract
Targeted therapies for gastrointestinal stromal tumor (GIST) are modestly effective, but GIST cannot be cured with single agent tyrosine kinase inhibitors. In this study, we sought to identify new therapeutic targets in GIST by investigating the tumor microenvironment. Here, we identified a paracrine signaling network by which cancer-associated fibroblasts (CAFs) drive GIST growth and metastasis. Specifically, CAFs isolated from human tumors were found to produce high levels of platelet-derived growth factor C (PDGFC), which activated PDGFC-PDGFRA signal transduction in GIST cells that regulated the expression of SLUG, an epithelial-mesenchymal transition (EMT) transcription factor and downstream target of PDGFRA signaling. Together, this paracrine induce signal transduction cascade promoted tumor growth and metastasis in vivo. Moreover, in metastatic GIST patients, SLUG expression positively correlated with tumor size and mitotic index. Given that CAF paracrine signaling modulated GIST biology, we directly targeted CAFs with a dual PI3K/mTOR inhibitor, which synergized with imatinib to increase tumor cell killing and in vivo disease response. Taken together, we identified a previously unappreciated cellular target for GIST therapy in order to improve disease control and cure rates.
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Affiliation(s)
- Hyunho Yoon
- Department of Surgery, Division of Surgical Oncology, Moores Cancer Center, University of California, San Diego, CA, USA
| | - Chih-Min Tang
- Department of Surgery, Division of Surgical Oncology, Moores Cancer Center, University of California, San Diego, CA, USA
| | - Sudeep Banerjee
- Department of Surgery, Division of Surgical Oncology, Moores Cancer Center, University of California, San Diego, CA, USA
- Department of Surgery, University of California, Los Angeles, CA, USA
| | - Mayra Yebra
- Department of Surgery, Division of Surgical Oncology, Moores Cancer Center, University of California, San Diego, CA, USA
| | - Sangkyu Noh
- Department of Surgery, Division of Surgical Oncology, Moores Cancer Center, University of California, San Diego, CA, USA
| | - Adam M Burgoyne
- Department of Surgery, Division of Surgical Oncology, Moores Cancer Center, University of California, San Diego, CA, USA
| | - Jorge De la Torre
- Department of Surgery, Division of Surgical Oncology, Moores Cancer Center, University of California, San Diego, CA, USA
| | - Martina De Siena
- Department of Surgery, Division of Surgical Oncology, Moores Cancer Center, University of California, San Diego, CA, USA
- Gastroenterology and Digestive Endoscopy, Fondazione Policlinico A.Gemelli Catholic University of Rome, Rome, Italy
| | - Mengyuan Liu
- Department of Surgery, University of Pennsylvania, Philadelphia, PA, USA
| | - Lillian R Klug
- Division of Hematology and Medical Oncology, Oregon Health and Science University, Portland, OR, USA
- Portland VA Health Care System, Knight Cancer Institute, Oregon Health and Science University, Portland, OR, USA
| | - Yoon Young Choi
- Division of Biomedical Informatics, Moores Cancer Center, University of California, San Diego, CA, USA
- Department of Surgery, Yonsei University College of Medicine, Seoul, Korea
| | - Mojgan Hosseini
- Department of Pathology, Moores Cancer Center, University of California, San Diego, CA, USA
| | - Antonio L Delgado
- Department of Surgery, Division of Surgical Oncology, Moores Cancer Center, University of California, San Diego, CA, USA
| | - Zhiyong Wang
- Department of Pharmacology, Moores Cancer Center, University of California, San Diego, CA, USA
| | - Randall P French
- Department of Surgery, Division of Surgical Oncology, Moores Cancer Center, University of California, San Diego, CA, USA
| | - Andrew Lowy
- Department of Surgery, Division of Surgical Oncology, Moores Cancer Center, University of California, San Diego, CA, USA
| | - Ronald P DeMatteo
- Department of Surgery, University of Pennsylvania, Philadelphia, PA, USA
| | - Michael C Heinrich
- Portland VA Health Care System, Knight Cancer Institute, Oregon Health and Science University, Portland, OR, USA
| | - Alfredo A Molinolo
- Department of Pathology, Moores Cancer Center, University of California, San Diego, CA, USA
| | - J Silvio Gutkind
- Department of Pharmacology, Moores Cancer Center, University of California, San Diego, CA, USA
| | - Olivier Harismendy
- Division of Biomedical Informatics, Moores Cancer Center, University of California, San Diego, CA, USA
| | - Jason K Sicklick
- Department of Surgery, Division of Surgical Oncology, Moores Cancer Center, University of California, San Diego, CA, USA.
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7
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Oh Y, Yang S, Liu X, Jana S, Izaddoustdar F, Gao X, Debi R, Kim DK, Kim KH, Yang P, Kassiri Z, Lakin R, Backx PH. Transcriptomic Bioinformatic Analyses of Atria Uncover Involvement of Pathways Related to Strain and Post-translational Modification of Collagen in Increased Atrial Fibrillation Vulnerability in Intensely Exercised Mice. Front Physiol 2020; 11:605671. [PMID: 33424629 PMCID: PMC7793719 DOI: 10.3389/fphys.2020.605671] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2020] [Accepted: 11/26/2020] [Indexed: 02/06/2023] Open
Abstract
Atrial Fibrillation (AF) is the most common supraventricular tachyarrhythmia that is typically associated with cardiovascular disease (CVD) and poor cardiovascular health. Paradoxically, endurance athletes are also at risk for AF. While it is well-established that persistent AF is associated with atrial fibrosis, hypertrophy and inflammation, intensely exercised mice showed similar adverse atrial changes and increased AF vulnerability, which required tumor necrosis factor (TNF) signaling, even though ventricular structure and function improved. To identify some of the molecular factors underlying the chamber-specific and TNF-dependent atrial changes induced by exercise, we performed transcriptome analyses of hearts from wild-type and TNF-knockout mice following exercise for 2 days, 2 or 6 weeks of exercise. Consistent with the central role of atrial stretch arising from elevated venous pressure in AF promotion, all 3 time points were associated with differential regulation of genes in atria linked to mechanosensing (focal adhesion kinase, integrins and cell-cell communications), extracellular matrix (ECM) and TNF pathways, with TNF appearing to play a permissive, rather than causal, role in gene changes. Importantly, mechanosensing/ECM genes were only enriched, along with tubulin- and hypertrophy-related genes after 2 days of exercise while being downregulated at 2 and 6 weeks, suggesting that early reactive strain-dependent remodeling with exercise yields to compensatory adjustments. Moreover, at the later time points, there was also downregulation of both collagen genes and genes involved in collagen turnover, a pattern mirroring aging-related fibrosis. By comparison, twofold fewer genes were differentially regulated in ventricles vs. atria, independently of TNF. Our findings reveal that exercise promotes TNF-dependent atrial transcriptome remodeling of ECM/mechanosensing pathways, consistent with increased preload and atrial stretch seen with exercise. We propose that similar preload-dependent mechanisms are responsible for atrial changes and AF in both CVD patients and athletes.
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Affiliation(s)
- Yena Oh
- Department of Biology, York University, Toronto, ON, Canada.,Department of Physiology, University of Toronto, Toronto, ON, Canada.,Department of Cellular and Molecular Medicine, Faculty of Medicine, University of Ottawa, Ottawa, ON, Canada.,University of Ottawa Heart Institute, Ottawa, ON, Canada
| | - Sibao Yang
- Department of Biology, York University, Toronto, ON, Canada.,Department of Cardiology, China-Japan Union Hospital of Jilin University, Changchun, China
| | - Xueyan Liu
- Department of Biology, York University, Toronto, ON, Canada.,Department of Cardiology, China-Japan Union Hospital of Jilin University, Changchun, China
| | - Sayantan Jana
- Department of Physiology, Cardiovascular Research Center, University of Alberta, Edmonton, AB, Canada
| | | | - Xiaodong Gao
- Department of Biology, York University, Toronto, ON, Canada
| | - Ryan Debi
- Department of Biology, York University, Toronto, ON, Canada
| | - Dae-Kyum Kim
- Donnelly Centre, University of Toronto, Toronto, ON, Canada.,Lunenfeld-Tanenbaum Research Institute, Sinai Health System, Toronto, ON, Canada
| | - Kyoung-Han Kim
- Department of Cellular and Molecular Medicine, Faculty of Medicine, University of Ottawa, Ottawa, ON, Canada.,University of Ottawa Heart Institute, Ottawa, ON, Canada
| | - Ping Yang
- Department of Cardiology, China-Japan Union Hospital of Jilin University, Changchun, China
| | - Zamaneh Kassiri
- Department of Physiology, Cardiovascular Research Center, University of Alberta, Edmonton, AB, Canada
| | - Robert Lakin
- Department of Biology, York University, Toronto, ON, Canada
| | - Peter H Backx
- Department of Biology, York University, Toronto, ON, Canada.,Department of Physiology, University of Toronto, Toronto, ON, Canada
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8
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Belviso I, Angelini F, Di Meglio F, Picchio V, Sacco AM, Nocella C, Romano V, Nurzynska D, Frati G, Maiello C, Messina E, Montagnani S, Pagano F, Castaldo C, Chimenti I. The Microenvironment of Decellularized Extracellular Matrix from Heart Failure Myocardium Alters the Balance between Angiogenic and Fibrotic Signals from Stromal Primitive Cells. Int J Mol Sci 2020; 21:ijms21217903. [PMID: 33114386 PMCID: PMC7662394 DOI: 10.3390/ijms21217903] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/02/2020] [Revised: 10/21/2020] [Accepted: 10/22/2020] [Indexed: 01/20/2023] Open
Abstract
Cardiac adverse remodeling is characterized by biological changes that affect the composition and architecture of the extracellular matrix (ECM). The consequently disrupted signaling can interfere with the balance between cardiogenic and pro-fibrotic phenotype of resident cardiac stromal primitive cells (CPCs). The latter are important players in cardiac homeostasis and can be exploited as therapeutic cells in regenerative medicine. Our aim was to compare the effects of human decellularized native ECM from normal (dECM-NH) or failing hearts (dECM-PH) on human CPCs. CPCs were cultured on dECM sections and characterized for gene expression, immunofluorescence, and paracrine profiles. When cultured on dECM-NH, CPCs significantly upregulated cardiac commitment markers (CX43, NKX2.5), cardioprotective cytokines (bFGF, HGF), and the angiogenesis mediator, NO. When seeded on dECM-PH, instead, CPCs upregulated pro-remodeling cytokines (IGF-2, PDGF-AA, TGF-β) and the oxidative stress molecule H2O2. Interestingly, culture on dECM-PH was associated with impaired paracrine support to angiogenesis, and increased expression of the vascular endothelial growth factor (VEGF)-sequestering decoy isoform of the KDR/VEGFR2 receptor. Our results suggest that resident CPCs exposed to the pathological microenvironment of remodeling ECM partially lose their paracrine angiogenic properties and release more pro-fibrotic cytokines. These observations shed novel insights on the crosstalk between ECM and stromal CPCs, suggesting also a cautious use of non-healthy decellularized myocardium for cardiac tissue engineering approaches.
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Affiliation(s)
- Immacolata Belviso
- Department of Public Health, School of Medicine and Surgery, University of Naples Federico II, 80131 Naples, Italy; (I.B.); (F.D.M.); (A.M.S.); (V.R.); (D.N.); (S.M.); (C.C.)
| | - Francesco Angelini
- Experimental and Clinical Pharmacology Unit, CRO-National Cancer Institute, 33081 Aviano (PN), Italy;
| | - Franca Di Meglio
- Department of Public Health, School of Medicine and Surgery, University of Naples Federico II, 80131 Naples, Italy; (I.B.); (F.D.M.); (A.M.S.); (V.R.); (D.N.); (S.M.); (C.C.)
| | - Vittorio Picchio
- Department of Medical Surgical Sciences and Biotechnologies, Sapienza University, Corso della Repubblica 79, 04100 Latina, Italy; (V.P.); (G.F.)
| | - Anna Maria Sacco
- Department of Public Health, School of Medicine and Surgery, University of Naples Federico II, 80131 Naples, Italy; (I.B.); (F.D.M.); (A.M.S.); (V.R.); (D.N.); (S.M.); (C.C.)
| | - Cristina Nocella
- Department of Clinical, Internal Medicine, Anesthesiology and Cardiovascular Sciences, Sapienza University, 00161 Rome, Italy;
| | - Veronica Romano
- Department of Public Health, School of Medicine and Surgery, University of Naples Federico II, 80131 Naples, Italy; (I.B.); (F.D.M.); (A.M.S.); (V.R.); (D.N.); (S.M.); (C.C.)
| | - Daria Nurzynska
- Department of Public Health, School of Medicine and Surgery, University of Naples Federico II, 80131 Naples, Italy; (I.B.); (F.D.M.); (A.M.S.); (V.R.); (D.N.); (S.M.); (C.C.)
| | - Giacomo Frati
- Department of Medical Surgical Sciences and Biotechnologies, Sapienza University, Corso della Repubblica 79, 04100 Latina, Italy; (V.P.); (G.F.)
- Department of AngioCardioNeurology, IRCCS Neuromed, 86077 Pozzilli, Italy
| | - Ciro Maiello
- Department of Cardiovascular Surgery and Transplant, Monaldi Hospital, 80131 Naples, Italy;
| | - Elisa Messina
- Department of Maternal Infantile and Urological Sciences, “Umberto I” Hospital, 00161 Rome, Italy;
| | - Stefania Montagnani
- Department of Public Health, School of Medicine and Surgery, University of Naples Federico II, 80131 Naples, Italy; (I.B.); (F.D.M.); (A.M.S.); (V.R.); (D.N.); (S.M.); (C.C.)
| | - Francesca Pagano
- Institute of Biochemistry and Cell Biology, National Council of Research (IBBC-CNR), 00015 Monterotondo (RM), Italy;
| | - Clotilde Castaldo
- Department of Public Health, School of Medicine and Surgery, University of Naples Federico II, 80131 Naples, Italy; (I.B.); (F.D.M.); (A.M.S.); (V.R.); (D.N.); (S.M.); (C.C.)
| | - Isotta Chimenti
- Department of Medical Surgical Sciences and Biotechnologies, Sapienza University, Corso della Repubblica 79, 04100 Latina, Italy; (V.P.); (G.F.)
- Mediterranea Cardiocentro, 80122 Napoli, Italy
- Correspondence: ; Tel.: +39-0773-1757-234
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Abstract
Cardiac fibrosis is associated with non-ischemic dilated cardiomyopathy, increasing its morbidity and mortality. Cardiac fibroblast is the keystone of fibrogenesis, being activated by numerous cellular and humoral factors. Macrophages, CD4+ and CD8+ T cells, mast cells, and endothelial cells stimulate fibrogenesis directly by activating cardiac fibroblasts and indirectly by synthetizing various profibrotic molecules. The synthesis of type 1 and type 3 collagen, fibronectin, and α-smooth muscle actin is rendered by various mechanisms like transforming growth factor-beta/small mothers against decapentaplegic pathway, renin angiotensin system, and estrogens, which in turn alter the extracellular matrix. Investigating the underlying mechanisms will allow the development of diagnostic and prognostic tools and discover novel specific therapies. Serum biomarkers aid in the diagnosis and tracking of cardiac fibrosis progression. The diagnostic gold standard is cardiac magnetic resonance with gadolinium administration that allows quantification of cardiac fibrosis either by late gadolinium enhancement assessment or by T1 mapping. Therefore, the goal is to stop and even reverse cardiac fibrosis by developing specific therapies that directly target fibrogenesis, in addition to the drugs used to treat heart failure. Cardiac resynchronization therapy had shown to revert myocardial remodeling and to reduce cardiac fibrosis. The purpose of this review is to provide an overview of currently available data.
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10
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Plasma big endothelin-1 predicts new-onset atrial fibrillation after surgical septal myectomy in patients with hypertrophic cardiomyopathy. BMC Cardiovasc Disord 2019; 19:122. [PMID: 31117937 PMCID: PMC6532265 DOI: 10.1186/s12872-019-1085-4] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2018] [Accepted: 04/22/2019] [Indexed: 12/23/2022] Open
Abstract
Background Postoperative atrial fibrillation (POAF) is a common complication in patients with obstructive hypertrophic cardiomyopathy (HOCM) who undergo surgical myectomy. POAF is associated with poor outcome. The role of plasma big endothelin-1 level in predicting atrial fibrillation after surgical septal myectomy in HOCM patients has not well been studied. Methods A total of 118 patients with HOCM who underwent surgical septal myectomy were recruited in this study. Plasma big endothelin-1 level was measured. The heart rhythm was continuously monitored during hospital stay. Preoperative, intraoperative, and postoperative variables were collected. Results POAF developed among 26 of the 118 patients (22%) in this study. Compared with those without POAF, patients with POAF were significantly older (53.5 ± 10.6 vs. 47.3 ± 13.6 years, P = 0.033), more likely to undergo mitral valve surgery (38.5% vs. 18.5%, P = 0.032), and had higher plasma big endothelin-1 levels (0.41 ± 0.19 vs. 0.27 ± 0.14 pmol/l, P = 0.001), longer hospital stay (9.1 ± 3.7 vs. 7.5 ± 2.8 days, P = 0.022), larger preoperative left atria (48.0 ± 5.2 vs. 44.1 ± 5.9 mm; P = 0.003). In the receiver operating characteristic curve analysis, the area under the curve for big endothelin-1 was 0.734 (95% CI, 0.634 to 0.834, P<0.001). In multivariate logistic regression analysis, preoperative big endothelin-1 level (OR 100.7, 95%CI: 5.0–2020.0, P = 0.003) and left atrial diameter (OR 1.106, 95%CI: 1.015–1.205, P = 0.022) were independent predictors of POAF. Conclusion Elevated preoperative plasma big endothelin-1 level is an independent predictor of POAF in HOCM patients undergoing surgical septal myectomy.
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