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Liu T, Hao Y, Zhang Z, Zhou H, Peng S, Zhang D, Li K, Chen Y, Chen M. Advanced Cardiac Patches for the Treatment of Myocardial Infarction. Circulation 2024; 149:2002-2020. [PMID: 38885303 PMCID: PMC11191561 DOI: 10.1161/circulationaha.123.067097] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 06/20/2024]
Abstract
Myocardial infarction is a cardiovascular disease characterized by a high incidence rate and mortality. It leads to various cardiac pathophysiological changes, including ischemia/reperfusion injury, inflammation, fibrosis, and ventricular remodeling, which ultimately result in heart failure and pose a significant threat to global health. Although clinical reperfusion therapies and conventional pharmacological interventions improve emergency survival rates and short-term prognoses, they are still limited in providing long-lasting improvements in cardiac function or reversing pathological progression. Recently, cardiac patches have gained considerable attention as a promising therapy for myocardial infarction. These patches consist of scaffolds or loaded therapeutic agents that provide mechanical reinforcement, synchronous electrical conduction, and localized delivery within the infarct zone to promote cardiac restoration. This review elucidates the pathophysiological progression from myocardial infarction to heart failure, highlighting therapeutic targets and various cardiac patches. The review considers the primary scaffold materials, including synthetic, natural, and conductive materials, and the prevalent fabrication techniques and optimal properties of the patch, as well as advanced delivery strategies. Last, the current limitations and prospects of cardiac patch research are considered, with the goal of shedding light on innovative products poised for clinical application.
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Affiliation(s)
- Tailuo Liu
- Laboratory of Cardiac Structure and Function, Institute of Cardiovascular Diseases (T.L., Y.H., H.Z., S.P., D.Z., Y.C., M.C.), West China Hospital, Sichuan University, Chengdu, PR China
- Department of Cardiology (T.L., S.P., D.Z., M.C.), West China Hospital, Sichuan University, Chengdu, PR China
- Medicine and Engineering Interdisciplinary Research Laboratory of Nursing & Materials, West China Hospital, Sichuan University/West China School of Nursing, Sichuan University, Chengdu, PR China (T.L., K.L., Y.C.)
| | - Ying Hao
- Laboratory of Cardiac Structure and Function, Institute of Cardiovascular Diseases (T.L., Y.H., H.Z., S.P., D.Z., Y.C., M.C.), West China Hospital, Sichuan University, Chengdu, PR China
| | - Zixuan Zhang
- West China School of Public Health/West China Fourth Hospital, Sichuan University, Chengdu, PR China (Z.Z.)
| | - Hao Zhou
- Laboratory of Cardiac Structure and Function, Institute of Cardiovascular Diseases (T.L., Y.H., H.Z., S.P., D.Z., Y.C., M.C.), West China Hospital, Sichuan University, Chengdu, PR China
| | - Shiqin Peng
- Department of Cardiology (T.L., S.P., D.Z., M.C.), West China Hospital, Sichuan University, Chengdu, PR China
| | - Dingyi Zhang
- Department of Cardiology (T.L., S.P., D.Z., M.C.), West China Hospital, Sichuan University, Chengdu, PR China
| | - Ka Li
- Medicine and Engineering Interdisciplinary Research Laboratory of Nursing & Materials, West China Hospital, Sichuan University/West China School of Nursing, Sichuan University, Chengdu, PR China (T.L., K.L., Y.C.)
| | - Yuwen Chen
- Medicine and Engineering Interdisciplinary Research Laboratory of Nursing & Materials, West China Hospital, Sichuan University/West China School of Nursing, Sichuan University, Chengdu, PR China (T.L., K.L., Y.C.)
| | - Mao Chen
- Department of Cardiology (T.L., S.P., D.Z., M.C.), West China Hospital, Sichuan University, Chengdu, PR China
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Gonzalo A, Augustin CM, Bifulco SF, Telle Å, Chahine Y, Kassar A, Guerrero-Hurtado M, Durán E, Martínez-Legazpi P, Flores O, Bermejo J, Plank G, Akoum N, Boyle PM, Del Alamo JC. Patient-specific multi-physics simulations of fibrotic changes in left atrial tissue mechanics impact on hemodynamics. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2024:2024.05.29.596526. [PMID: 38853952 PMCID: PMC11160719 DOI: 10.1101/2024.05.29.596526] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2024]
Abstract
Stroke is a leading cause of death and disability worldwide. Atrial myopathy, including fibrosis, is associated with an increased risk of ischemic stroke, but the mechanisms underlying this association are poorly understood. Fibrosis modifies myocardial structure, impairing electrical propagation and tissue biomechanics, and creating stagnant flow regions where clots could form. Fibrosis can be mapped non-invasively using late gadolinium enhancement magnetic resonance imaging (LGE-MRI). However, fibrosis maps are not currently incorporated into stroke risk calculations or computational electro-mechano-fluidic models. We present multi-physics simulations of left atrial (LA) myocardial motion and hemodynamics using patient-specific anatomies and fibrotic maps from LGE-MRI. We modify tissue stiffness and active tension generation in fibrotic regions and investigate how these changes affect LA flow for different fibrotic burdens. We find that fibrotic regions and, to a lesser extent, non-fibrotic regions experience reduced myocardial strain, resulting in decreased LA emptying fraction consistent with clinical observations. Both fibrotic tissue stiffening and hypocontractility independently reduce LA function, but together, these two alterations cause more pronounced effects than either one alone. Fibrosis significantly alters flow patterns throughout the atrial chamber, and particularly, the filling and emptying jets of the left atrial appendage (LAA). The effects of fibrosis in LA flow are largely captured by the concomitant changes in LA emptying fraction except inside the LAA, where a multi-factorial behavior is observed. This work illustrates how high-fidelity, multi-physics models can be used to study thrombogenesis mechanisms in a patient-specific manner, shedding light onto the link between atrial fibrosis and ischemic stroke. Key points Left atrial (LA) fibrosis is associated with arrhythmogenesis and increased risk of ischemic stroke; its extent and pattern can be quantified on a patient-specific basis using late gadolinium enhancement magnetic resonance imaging.Current stroke risk prediction tools have limited personalization, and their accuracy could be improvedfib by incorporating patient-specific information like fibrotic maps and hemodynamic patterns.We present the first electro-mechano-fluidic multi-physics computational simulations of LA flow, including fibrosis and anatomies from medical imaging.Mechanical changes in fibrotic tissue impair global LA motion, decreasing LA and left atrial appendage (LAA) emptying fractions, especially in subjects with higher fibrosis burdens.Fibrotic-mediated LA motion impairment alters LA and LAA flow near the endocardium and the whole cavity, ultimately leading to more stagnant blood regions in the LAA.
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Bekedam FT, Smal R, Smit MC, Aman J, Vonk-Noordegraaf A, Bogaard HJ, Goumans MJ, De Man FS, Llucià-Valldeperas A. Mechanical stimulation of induced pluripotent stem derived cardiac fibroblasts. Sci Rep 2024; 14:9795. [PMID: 38684844 PMCID: PMC11058244 DOI: 10.1038/s41598-024-60102-w] [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: 12/15/2023] [Accepted: 04/18/2024] [Indexed: 05/02/2024] Open
Abstract
Cardiac fibrosis contributes to the development of heart failure, and is the response of cardiac fibroblasts (CFs) to pressure or volume overload. Limiting factors in CFs research are the poor availability of human cells and the tendency of CFs to transdifferentiate into myofibroblasts when cultured in vitro. The possibility to generate CFs from induced pluripotent stem cells (iPSC), providing a nearly unlimited cell source, opens new possibilities. However, the behaviour of iPSC-CFs under mechanical stimulation has not been studied yet. Our study aimed to assess the behaviour of iPSC-CFs under mechanical stretch and pro-fibrotic conditions. First, we confirm that iPSC-CFs are comparable to primary CFs at gene, protein and functional level. Furthermore, iPSC-derived CFs adopt a pro-fibrotic response to transforming growth factor beta (TGF-β). In addition, mechanical stretch inhibits TGF-β-induced fibroblast activation in iPSC-CFs. Thus, the responsiveness to cytokines and mechanical stimulation of iPSC-CFs demonstrates they possess key characteristics of primary CFs and may be useful for disease modelling.
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Affiliation(s)
- Fjodor T Bekedam
- PHEniX Laboratory, Department of Pulmonary Medicine, Amsterdam UMC Location Vrije Universiteit Amsterdam, De Boelelaan 1117, Amsterdam, The Netherlands
- Amsterdam Cardiovascular Sciences, Pulmonary Hypertension and Thrombosis, Amsterdam, The Netherlands
| | - Rowan Smal
- PHEniX Laboratory, Department of Pulmonary Medicine, Amsterdam UMC Location Vrije Universiteit Amsterdam, De Boelelaan 1117, Amsterdam, The Netherlands
- Amsterdam Cardiovascular Sciences, Pulmonary Hypertension and Thrombosis, Amsterdam, The Netherlands
| | - Marisa C Smit
- PHEniX Laboratory, Department of Pulmonary Medicine, Amsterdam UMC Location Vrije Universiteit Amsterdam, De Boelelaan 1117, Amsterdam, The Netherlands
- Amsterdam Cardiovascular Sciences, Pulmonary Hypertension and Thrombosis, Amsterdam, The Netherlands
| | - Jurjan Aman
- PHEniX Laboratory, Department of Pulmonary Medicine, Amsterdam UMC Location Vrije Universiteit Amsterdam, De Boelelaan 1117, Amsterdam, The Netherlands
- Amsterdam Cardiovascular Sciences, Pulmonary Hypertension and Thrombosis, Amsterdam, The Netherlands
| | - Anton Vonk-Noordegraaf
- PHEniX Laboratory, Department of Pulmonary Medicine, Amsterdam UMC Location Vrije Universiteit Amsterdam, De Boelelaan 1117, Amsterdam, The Netherlands
- Amsterdam Cardiovascular Sciences, Pulmonary Hypertension and Thrombosis, Amsterdam, The Netherlands
| | - Harm Jan Bogaard
- PHEniX Laboratory, Department of Pulmonary Medicine, Amsterdam UMC Location Vrije Universiteit Amsterdam, De Boelelaan 1117, Amsterdam, The Netherlands
- Amsterdam Cardiovascular Sciences, Pulmonary Hypertension and Thrombosis, Amsterdam, The Netherlands
| | - Marie José Goumans
- Department of Cell and Chemical Biology, Leiden UMC, 2300 RC, Leiden, The Netherlands
| | - Frances S De Man
- PHEniX Laboratory, Department of Pulmonary Medicine, Amsterdam UMC Location Vrije Universiteit Amsterdam, De Boelelaan 1117, Amsterdam, The Netherlands.
- Amsterdam Cardiovascular Sciences, Pulmonary Hypertension and Thrombosis, Amsterdam, The Netherlands.
| | - Aida Llucià-Valldeperas
- PHEniX Laboratory, Department of Pulmonary Medicine, Amsterdam UMC Location Vrije Universiteit Amsterdam, De Boelelaan 1117, Amsterdam, The Netherlands.
- Amsterdam Cardiovascular Sciences, Pulmonary Hypertension and Thrombosis, Amsterdam, The Netherlands.
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Vaziri AS, Vasheghani-Farahani E, Hosseinzadeh S, Bagheri F, Büchner M, Schubert DW, Boccaccini AR. Genipin-Cross-Linked Silk Fibroin/Alginate Dialdehyde Hydrogel with Tunable Gelation Kinetics, Degradability, and Mechanical Properties: A Potential Candidate for Tissue Regeneration. Biomacromolecules 2024; 25:2323-2337. [PMID: 38437165 DOI: 10.1021/acs.biomac.3c01203] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/06/2024]
Abstract
Genipin-cross-linked silk fibroin (SF) hydrogel is considered to be biocompatible and mechanically robust. However, its use remains a challenge for in situ forming applications due to its prolonged gelation process. In our attempt to facilitate the in situ fabrication of a genipin-mediated SF hydrogel, alginate dialdehyde (ADA) was utilized as a reinforcement template. Here, SF/ADA-based hydrogels with different compositions were synthesized covalently and ionically. Incorporating ADA into the SF hydrogel increased pore size (44.66-174.66 μm), porosity (61.59-80.40%), and the equilibrium swelling degree (7.60-30.17). Moreover, a wide range of storage modulus and compressive modulus were obtained by adjusting the proportions of SF and ADA networks within the hydrogel. The in vitro cell analysis using preosteoblast cells (MC3T3-E1) demonstrated the cytocompatibility of all hydrogels. Overall, the covalently and ionically cross-linked SF/ADA hydrogel represents a promising solution for in situ forming hydrogels for applications in tissue regeneration.
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Affiliation(s)
- Asma Sadat Vaziri
- Biomedical Engineering Division, Faculty of Chemical Engineering, Tarbiat Modares University, Tehran 14115-111, Iran
- Institute of Biomaterials, Department of Materials Science and Engineering, University of Erlangen-Nuremberg, Erlangen 91058, Germany
| | - Ebrahim Vasheghani-Farahani
- Biomedical Engineering Division, Faculty of Chemical Engineering, Tarbiat Modares University, Tehran 14115-111, Iran
| | - Simzar Hosseinzadeh
- Medical Nanotechnology and Tissue Engineering Research Center, Shahid Beheshti University of Medical Sciences, Tehran 1968917313, Iran
| | - Fatemeh Bagheri
- Biotechnology Department, Faculty of Chemical Engineering, Tarbiat Modares University, Tehran 14115-111, Iran
| | - Margitta Büchner
- Institute of Polymer Materials, Department of Materials Science and Engineering, University of Erlangen-Nuremberg, Erlangen 91058, Germany
| | - Dirk W Schubert
- Institute of Polymer Materials, Department of Materials Science and Engineering, University of Erlangen-Nuremberg, Erlangen 91058, Germany
| | - Aldo R Boccaccini
- Institute of Biomaterials, Department of Materials Science and Engineering, University of Erlangen-Nuremberg, Erlangen 91058, Germany
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Abdalla AME, Miao Y, Ahmed AIM, Meng N, Ouyang C. CAR-T cell therapeutic avenue for fighting cardiac fibrosis: Roadblocks and perspectives. Cell Biochem Funct 2024; 42:e3955. [PMID: 38379220 DOI: 10.1002/cbf.3955] [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: 12/19/2023] [Revised: 02/06/2024] [Accepted: 02/09/2024] [Indexed: 02/22/2024]
Abstract
Heart diseases remain the primary cause of human mortality in the world. Although conventional therapeutic opportunities fail to halt or recover cardiac fibrosis, the promising clinical results and therapeutic efficacy of engineered chimeric antigen receptor (CAR) T cell therapy show several advancements. However, the current models of CAR-T cells need further improvement since the T cells are associated with the triggering of excessive inflammatory cytokines that directly affect cardiac functions. Thus, the current study highlights the critical function of heart immune cells in tissue fibrosis and repair. The study also confirms CAR-T cell as an emerging therapeutic for treating cardiac fibrosis, explores the current roadblocks to CAR-T cell therapy, and considers future outlooks for research development.
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Affiliation(s)
- Ahmed M E Abdalla
- School of Biological Sciences and Technology, University of Jinan, Jinan, China
- Department of Biochemistry, College of Applied Science, University of Bahri, Khartoum, Sudan
| | - Yu Miao
- NHC Key Laboratory of Diagnosis and Therapy of Gastrointestinal Tumor, Gansu Provincial Hospital, Lanzhou, China
- Key Laboratory of Molecular Diagnostics and Precision Medicine for Surgical Oncology in Gansu Province, Gansu Provincial Hospital, Lanzhou, Gansu, China
| | - Ahmed I M Ahmed
- Department of Biochemistry, College of Applied Science, University of Bahri, Khartoum, Sudan
| | - Ning Meng
- School of Biological Sciences and Technology, University of Jinan, Jinan, China
| | - Chenxi Ouyang
- Department of Vascular Surgery, Fuwai Hospital, National Center for Cardiovascular Disease, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
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6
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Rosú SA, Aguilar J, Urbano BF, Tarraga WA, Ramella NA, Longo GS, Finarelli GS, Sanchez Donoso SA, Tricerri MA. Interactions of variants of human apolipoprotein A-I with biopolymeric model matrices. Effect of collagen and heparin. Arch Biochem Biophys 2023; 750:109805. [PMID: 37913855 DOI: 10.1016/j.abb.2023.109805] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2023] [Revised: 10/05/2023] [Accepted: 10/30/2023] [Indexed: 11/03/2023]
Abstract
BACKGROUND The extracellular matrix (ECM) is a complex tridimensional scaffold that actively participates in physiological and pathological events. The objective of this study was to test whether structural proteins of the ECM and glycosaminoglycans (GAGs) may favor the retention of human apolipoprotein A-I (apoA-I) variants associated with amyloidosis and atherosclerosis. METHODS Biopolymeric matrices containing collagen type I (Col, a main macromolecular component of the ECM) with or without heparin (Hep, a model of GAGs) were constructed and characterized, and used to compare the binding of apoA-I having the native sequence (Wt) or Arg173Pro, a natural variant inducing cardiac amyloidosis. Protein binding was observed by fluorescence microscopy and unbound proteins quantified by a colorimetric assay. RESULTS Both, Wt and Arg173Pro bound to the scaffolds containing Col, but the presence of Hep diminished the binding efficiency. Col-Hep matrices retained Arg173Pro more than the Wt. The retained protein was only partially removed from the matrices with saline solutions, indicating that electrostatic interactions may occur but are not the main driving force. Using in addition thermodynamic molecular simulations and size exclusion chromatography approaches, we suggest that the binding of apoA-I variants to the biopolymeric matrices is driven by many low affinity interactions. CONCLUSIONS Under this scenario Col-Hep scaffolds contribute to the binding of Arg173Pro, as a cooperative platform which could modify the native protein conformation affecting protein folding. GENERAL SIGNIFICANCE We show that the composition of the ECM is key to the protein retention, and well characterized biosynthetic matrices offer an invaluable in vitro model to mimic the hallmark of pathologies with interstitial infiltration such as cardiac amyloidosis.
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Affiliation(s)
- Silvana A Rosú
- Instituto de Investigaciones Bioquímicas de La Plata (INIBIOLP), CONICET. Facultad de Ciencias Médicas, Universidad Nacional de La Plata, Calle 60 y 120, La Plata, Buenos Aires, Argentina; Facultad de Ciencias Médicas, Universidad Nacional de La Plata, La Plata, Buenos Aires, Argentina
| | - Joao Aguilar
- Laboratorio de Interacciones Macromoleculares (LIMM), Departamento de Polímeros, Facultad de Ciencias Químicas, Universidad de Concepción, Concepción, Chile
| | - Bruno F Urbano
- Laboratorio de Interacciones Macromoleculares (LIMM), Departamento de Polímeros, Facultad de Ciencias Químicas, Universidad de Concepción, Concepción, Chile
| | - Wilson A Tarraga
- Instituto de Investigaciones Fisicoquímicas Teóricas y Aplicadas (INIFTA), Universidad Nacional de La Plata-CONICET, La Plata, Buenos Aires, Argentina
| | - Nahuel A Ramella
- Instituto de Investigaciones Bioquímicas de La Plata (INIBIOLP), CONICET. Facultad de Ciencias Médicas, Universidad Nacional de La Plata, Calle 60 y 120, La Plata, Buenos Aires, Argentina; Facultad de Ciencias Médicas, Universidad Nacional de La Plata, La Plata, Buenos Aires, Argentina
| | - Gabriel S Longo
- Instituto de Investigaciones Fisicoquímicas Teóricas y Aplicadas (INIFTA), Universidad Nacional de La Plata-CONICET, La Plata, Buenos Aires, Argentina
| | - Gabriela S Finarelli
- Instituto de Investigaciones Bioquímicas de La Plata (INIBIOLP), CONICET. Facultad de Ciencias Médicas, Universidad Nacional de La Plata, Calle 60 y 120, La Plata, Buenos Aires, Argentina
| | - Susana A Sanchez Donoso
- Laboratorio de Interacciones Macromoleculares (LIMM), Departamento de Polímeros, Facultad de Ciencias Químicas, Universidad de Concepción, Concepción, Chile.
| | - M Alejandra Tricerri
- Instituto de Investigaciones Bioquímicas de La Plata (INIBIOLP), CONICET. Facultad de Ciencias Médicas, Universidad Nacional de La Plata, Calle 60 y 120, La Plata, Buenos Aires, Argentina; Facultad de Ciencias Médicas, Universidad Nacional de La Plata, La Plata, Buenos Aires, Argentina.
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Ryu H, Wang X, Xie Z, Kim J, Liu Y, Bai W, Song Z, Song JW, Zhao Z, Kim J, Yang Q, Xie JJ, Keate R, Wang H, Huang Y, Efimov IR, Ameer GA, Rogers JA. Materials and Design Approaches for a Fully Bioresorbable, Electrically Conductive and Mechanically Compliant Cardiac Patch Technology. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2023; 10:e2303429. [PMID: 37518771 PMCID: PMC10520666 DOI: 10.1002/advs.202303429] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/26/2023] [Revised: 07/07/2023] [Indexed: 08/01/2023]
Abstract
Myocardial infarction (MI) is one of the leading causes of death and disability. Recently developed cardiac patches provide mechanical support and additional conductive paths to promote electrical signal propagation in the MI area to synchronize cardiac excitation and contraction. Cardiac patches based on conductive polymers offer attractive features; however, the modest levels of elasticity and high impedance interfaces limit their mechanical and electrical performance. These structures also operate as permanent implants, even in cases where their utility is limited to the healing period of tissue damaged by the MI. The work presented here introduces a highly conductive cardiac patch that combines bioresorbable metals and polymers together in a hybrid material structure configured in a thin serpentine geometry that yields elastic mechanical properties. Finite element analysis guides optimized choices of layouts in these systems. Regular and synchronous contraction of human induced pluripotent stem cell-derived cardiomyocytes on the cardiac patch and ex vivo studies offer insights into the essential properties and the bio-interface. These results provide additional options in the design of cardiac patches to treat MI and other cardiac disorders.
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Reuter MS, Sokolowski DJ, Javier Diaz-Mejia J, Keunen J, de Vrijer B, Chan C, Wang L, Ryan G, Chiasson DA, Ketela T, Scherer SW, Wilson MD, Jaeggi E, Chaturvedi RR. Decreased left heart flow in fetal lambs causes left heart hypoplasia and pro-fibrotic tissue remodeling. Commun Biol 2023; 6:770. [PMID: 37481629 PMCID: PMC10363152 DOI: 10.1038/s42003-023-05132-2] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2022] [Accepted: 07/11/2023] [Indexed: 07/24/2023] Open
Abstract
Low blood flow through the fetal left heart is often conjectured as an etiology for hypoplastic left heart syndrome (HLHS). To investigate if a decrease in left heart flow results in growth failure, we generate left ventricular inflow obstruction (LVIO) in mid-gestation fetal lambs by implanting coils in their left atrium using an ultrasound-guided percutaneous technique. Significant LVIO recapitulates important clinical features of HLHS: decreased antegrade aortic valve flow, compensatory retrograde perfusion of the brain and ascending aorta (AAo) from the arterial duct, severe left heart hypoplasia, a non-apex forming LV, and a thickened endocardial layer. The hypoplastic AAo have miRNA-gene pairs annotating to cell proliferation that are inversely differentially expressed by bulk RNA-seq. Single-nucleus RNA-seq of the hypoplastic LV myocardium shows an increase in fibroblasts with a reciprocal decrease in cardiomyocyte nuclei proportions. Fibroblasts, cardiomyocytes and endothelial cells from hypoplastic myocardium have increased expression of extracellular matrix component or fibrosis genes with dysregulated fibroblast growth factor signaling. Hence, a severe sustained ( ~ 1/3 gestation) reduction in fetal left heart flow is sufficient to cause left heart hypoplasia. This is accompanied by changes in cellular composition and gene expression consistent with a pro-fibrotic environment and aberrant induction of mesenchymal programs.
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Affiliation(s)
- Miriam S Reuter
- CGEn, The Hospital for Sick Children, Toronto, ON, Canada
- The Centre for Applied Genomics, The Hospital for Sick Children, Toronto, ON, Canada
- Genetics and Genome Biology, SickKids Research Institute, Toronto, ON, Canada
| | - Dustin J Sokolowski
- Genetics and Genome Biology, SickKids Research Institute, Toronto, ON, Canada
- Department of Molecular Genetics, University of Toronto, Toronto, ON, Canada
| | - J Javier Diaz-Mejia
- Princess Margaret Cancer Centre, University Health Network, Toronto, ON, Canada
| | - Johannes Keunen
- Ontario Fetal Centre, Department of Obstetrics & Gynaecology, Mount Sinai Hospital, Toronto, ON, Canada
- Department of Obstetrics & Gynaecology, University of Toronto, Toronto, ON, Canada
| | - Barbra de Vrijer
- Department of Obstetrics & Gynaecology, Western University, London, ON, Canada
- Children's Health Research Institute, London, ON, Canada
- London Health Sciences Centre, Victoria Hospital, London, ON, Canada
| | - Cadia Chan
- Genetics and Genome Biology, SickKids Research Institute, Toronto, ON, Canada
- Department of Molecular Genetics, University of Toronto, Toronto, ON, Canada
| | - Liangxi Wang
- Genetics and Genome Biology, SickKids Research Institute, Toronto, ON, Canada
- Department of Molecular Genetics, University of Toronto, Toronto, ON, Canada
| | - Greg Ryan
- Ontario Fetal Centre, Department of Obstetrics & Gynaecology, Mount Sinai Hospital, Toronto, ON, Canada
- Department of Obstetrics & Gynaecology, University of Toronto, Toronto, ON, Canada
| | - David A Chiasson
- Department of Paediatric Laboratory Medicine, The Hospital for Sick Children, Toronto, ON, Canada
- Department of Laboratory Medicine & Pathobiology, University of Toronto, Toronto, ON, Canada
| | - Troy Ketela
- Princess Margaret Cancer Centre, University Health Network, Toronto, ON, Canada
| | - Stephen W Scherer
- The Centre for Applied Genomics, The Hospital for Sick Children, Toronto, ON, Canada
- Genetics and Genome Biology, SickKids Research Institute, Toronto, ON, Canada
- Department of Molecular Genetics, University of Toronto, Toronto, ON, Canada
- McLaughlin Centre, University of Toronto, Toronto, ON, Canada
| | - Michael D Wilson
- Genetics and Genome Biology, SickKids Research Institute, Toronto, ON, Canada
- Department of Molecular Genetics, University of Toronto, Toronto, ON, Canada
| | - Edgar Jaeggi
- Ontario Fetal Centre, Department of Obstetrics & Gynaecology, Mount Sinai Hospital, Toronto, ON, Canada
- Labatt Family Heart Centre, Division of Cardiology, The Hospital for Sick Children, Toronto, ON, Canada
- Department of Paediatrics, University of Toronto, Toronto, ON, Canada
| | - Rajiv R Chaturvedi
- Ontario Fetal Centre, Department of Obstetrics & Gynaecology, Mount Sinai Hospital, Toronto, ON, Canada.
- Labatt Family Heart Centre, Division of Cardiology, The Hospital for Sick Children, Toronto, ON, Canada.
- Department of Paediatrics, University of Toronto, Toronto, ON, Canada.
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Bazgir F, Nau J, Nakhaei-Rad S, Amin E, Wolf MJ, Saucerman JJ, Lorenz K, Ahmadian MR. The Microenvironment of the Pathogenesis of Cardiac Hypertrophy. Cells 2023; 12:1780. [PMID: 37443814 PMCID: PMC10341218 DOI: 10.3390/cells12131780] [Citation(s) in RCA: 8] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2023] [Revised: 06/22/2023] [Accepted: 06/29/2023] [Indexed: 07/15/2023] Open
Abstract
Pathological cardiac hypertrophy is a key risk factor for the development of heart failure and predisposes individuals to cardiac arrhythmia and sudden death. While physiological cardiac hypertrophy is adaptive, hypertrophy resulting from conditions comprising hypertension, aortic stenosis, or genetic mutations, such as hypertrophic cardiomyopathy, is maladaptive. Here, we highlight the essential role and reciprocal interactions involving both cardiomyocytes and non-myocardial cells in response to pathological conditions. Prolonged cardiovascular stress causes cardiomyocytes and non-myocardial cells to enter an activated state releasing numerous pro-hypertrophic, pro-fibrotic, and pro-inflammatory mediators such as vasoactive hormones, growth factors, and cytokines, i.e., commencing signaling events that collectively cause cardiac hypertrophy. Fibrotic remodeling is mediated by cardiac fibroblasts as the central players, but also endothelial cells and resident and infiltrating immune cells enhance these processes. Many of these hypertrophic mediators are now being integrated into computational models that provide system-level insights and will help to translate our knowledge into new pharmacological targets. This perspective article summarizes the last decades' advances in cardiac hypertrophy research and discusses the herein-involved complex myocardial microenvironment and signaling components.
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Affiliation(s)
- Farhad Bazgir
- Institute of Biochemistry and Molecular Biology II, Medical Faculty and University Hospital Düsseldorf, Heinrich Heine University Düsseldorf, 40225 Düsseldorf, Germany; (F.B.); (J.N.)
| | - Julia Nau
- Institute of Biochemistry and Molecular Biology II, Medical Faculty and University Hospital Düsseldorf, Heinrich Heine University Düsseldorf, 40225 Düsseldorf, Germany; (F.B.); (J.N.)
| | - Saeideh Nakhaei-Rad
- Stem Cell Biology, and Regenerative Medicine Research Group, Institute of Biotechnology, Ferdowsi University of Mashhad, Mashhad 91779-48974, Iran;
| | - Ehsan Amin
- Institute of Neural and Sensory Physiology, Medical Faculty and University Hospital Düsseldorf, Heinrich Heine University Düsseldorf, 40225 Düsseldorf, Germany;
| | - Matthew J. Wolf
- Department of Medicine and Robert M. Berne Cardiovascular Research Center, University of Virginia, Charlottesville, VA 22908, USA;
| | - Jeffry J. Saucerman
- Department of Biomedical Engineering, University of Virginia, Charlottesville, VA 22908, USA;
| | - Kristina Lorenz
- Institute of Pharmacology and Toxicology, University of Würzburg, Leibniz Institute for Analytical Sciences, 97078 Würzburg, Germany;
| | - Mohammad Reza Ahmadian
- Institute of Biochemistry and Molecular Biology II, Medical Faculty and University Hospital Düsseldorf, Heinrich Heine University Düsseldorf, 40225 Düsseldorf, Germany; (F.B.); (J.N.)
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10
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Liu T, Li X, Wang Y, Zhou M, Liang F. Computational modeling of electromechanical coupling in human cardiomyocyte applied to study hypertrophic cardiomyopathy and its drug response. COMPUTER METHODS AND PROGRAMS IN BIOMEDICINE 2023; 231:107372. [PMID: 36736134 DOI: 10.1016/j.cmpb.2023.107372] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/07/2022] [Revised: 01/02/2023] [Accepted: 01/23/2023] [Indexed: 06/18/2023]
Abstract
BACKGROUND AND OBJECTIVE Knowledge of electromechanical coupling in cardiomyocyte and how it is influenced by various pathophysiological factors is fundamental to understanding the pathogenesis of myocardial disease and its response to medication, which is however hard to be thoroughly addressed by clinical/experimental studies due to technical limitations. At this point, computational modeling offers an alternative approach. The main objective of the study was to develop a computational model capable of simulating the process of electromechanical coupling and quantifying the roles of various factors in play in the human left ventricular cardiomyocyte. METHODS A new electrophysiological model was firstly built by combining several existing electrophysiological models and incorporating the mechanism of electrophysiological homeostasis, which was subsequently coupled to models representing the cross-bridge dynamics and active force generation during excitation-contraction coupling and the passive mechanical properties of cardiomyocyte to yield an integrative electromechanical model. Model parameters were calibrated or optimized based on a large amount of experimental data. The resulting model was applied to delineate the characteristics of electromechanical coupling and explore underlying determinant factors in hypertrophic cardiomyopathy (HCM) cardiomyocyte, as well as quantify their changes in response to different medications. RESULTS Model predictions captured the major electromechanical characteristics of cardiomyocyte under both normal physiological and HCM conditions. In comparison with normal cardiomyocyte, HCM cardiomyocyte suffered from systemic changes in both electrophysiological and mechanical variables. Numerical simulations of drug response revealed that Mavacamten and Metoprolol could both reduce the active contractility and alleviate calcium overload but had marked differential influences on many other electromechanical variables, which theoretically explained why the two drugs have differential therapeutic effects. In addition, our numerical experiments demonstrated the important role of compensatory ion transport in maintaining electrophysiological homeostasis and regulating cytoplasmic volume. CONCLUSIONS A sophisticated computational model has the advantage of providing quantitative and integrative insights for understanding the pathogenesis and drug responses of HCM or other myocardial diseases at the level of cardiomyocyte, and hence may contribute as a useful complement to clinical/experimental studies. The model may also be coupled to tissue- or organ-level models to strengthen the physiological implications of macro-scale numerical simulations.
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Affiliation(s)
- Taiwei Liu
- Department of Engineering Mechanics, School of Naval Architecture, Ocean and Civil Engineering, Shanghai Jiao Tong University, 800 Dong Chuan Road, Shanghai 200240, China
| | - Xuanyu Li
- Department of Engineering Mechanics, School of Naval Architecture, Ocean and Civil Engineering, Shanghai Jiao Tong University, 800 Dong Chuan Road, Shanghai 200240, China
| | - Yue Wang
- Department of Cardiology, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200011, China
| | - Mi Zhou
- Department of Cardiovascular Surgery, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200025, China
| | - Fuyou Liang
- Department of Engineering Mechanics, School of Naval Architecture, Ocean and Civil Engineering, Shanghai Jiao Tong University, 800 Dong Chuan Road, Shanghai 200240, China; State Key Laboratory of Ocean Engineering, Shanghai Jiao Tong University, Shanghai 200240, China; World-Class Research Center "Digital biodesign and personalized healthcare", Sechenov First Moscow State Medical University, Moscow 19991, Russia.
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11
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Alipour Symakani RS, van Genuchten WJ, Zandbergen LM, Henry S, Taverne YJHJ, Merkus D, Helbing WA, Bartelds B. The right ventricle in tetralogy of Fallot: adaptation to sequential loading. Front Pediatr 2023; 11:1098248. [PMID: 37009270 PMCID: PMC10061113 DOI: 10.3389/fped.2023.1098248] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/14/2022] [Accepted: 02/27/2023] [Indexed: 04/04/2023] Open
Abstract
Right ventricular dysfunction is a major determinant of outcome in patients with complex congenital heart disease, as in tetralogy of Fallot. In these patients, right ventricular dysfunction emerges after initial pressure overload and hypoxemia, which is followed by chronic volume overload due to pulmonary regurgitation after corrective surgery. Myocardial adaptation and the transition to right ventricular failure remain poorly understood. Combining insights from clinical and experimental physiology and myocardial (tissue) data has identified a disease phenotype with important distinctions from other types of heart failure. This phenotype of the right ventricle in tetralogy of Fallot can be described as a syndrome of dysfunctional characteristics affecting both contraction and filling. These characteristics are the end result of several adaptation pathways of the cardiomyocytes, myocardial vasculature and extracellular matrix. As long as the long-term outcome of surgical correction of tetralogy of Fallot remains suboptimal, other treatment strategies need to be explored. Novel insights in failure of adaptation and the role of cardiomyocyte proliferation might provide targets for treatment of the (dysfunctional) right ventricle under stress.
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Affiliation(s)
- Rahi S. Alipour Symakani
- Department of Pediatrics, Division of Pediatric Cardiology, Erasmus Medical Center, Sophia Children’s Hospital, Rotterdam, Netherlands
- Department of Cardiology, Division of Experimental Cardiology, Erasmus Medical Center, Rotterdam, Netherlands
- Department of Cardiothoracic Surgery, Erasmus Medical Center, Rotterdam, Netherlands
| | - Wouter J. van Genuchten
- Department of Pediatrics, Division of Pediatric Cardiology, Erasmus Medical Center, Sophia Children’s Hospital, Rotterdam, Netherlands
| | - Lotte M. Zandbergen
- Department of Cardiology, Division of Experimental Cardiology, Erasmus Medical Center, Rotterdam, Netherlands
- Walter Brendel Center of Experimental Medicine (WBex), University Clinic Munich, Munich, Germany
| | - Surya Henry
- Department of Pediatrics, Division of Pediatric Cardiology, Erasmus Medical Center, Sophia Children’s Hospital, Rotterdam, Netherlands
- Department of Cell Biology, Erasmus Medical Center, Rotterdam, Netherlands
| | | | - Daphne Merkus
- Department of Cardiology, Division of Experimental Cardiology, Erasmus Medical Center, Rotterdam, Netherlands
- Walter Brendel Center of Experimental Medicine (WBex), University Clinic Munich, Munich, Germany
- German Center for Cardiovascular Research (DZHK), Partner Site Munich, Munich Heart Alliance (MHA), Munich, Germany
| | - Willem A. Helbing
- Department of Pediatrics, Division of Pediatric Cardiology, Erasmus Medical Center, Sophia Children’s Hospital, Rotterdam, Netherlands
| | - Beatrijs Bartelds
- Department of Pediatrics, Division of Pediatric Cardiology, Erasmus Medical Center, Sophia Children’s Hospital, Rotterdam, Netherlands
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12
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Kight A, Pirozzi I, Liang X, McElhinney DB, Han AK, Dual SA, Cutkosky M. Decoupling Transmission and Transduction for Improved Durability of Highly Stretchable, Soft Strain Sensing: Applications in Human Health Monitoring. SENSORS (BASEL, SWITZERLAND) 2023; 23:1955. [PMID: 36850551 PMCID: PMC9967534 DOI: 10.3390/s23041955] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 12/20/2022] [Revised: 01/24/2023] [Accepted: 02/02/2023] [Indexed: 06/18/2023]
Abstract
This work presents a modular approach to the development of strain sensors for large deformations. The proposed method separates the extension and signal transduction mechanisms using a soft, elastomeric transmission and a high-sensitivity microelectromechanical system (MEMS) transducer. By separating the transmission and transduction, they can be optimized independently for application-specific mechanical and electrical performance. This work investigates the potential of this approach for human health monitoring as an implantable cardiac strain sensor for measuring global longitudinal strain (GLS). The durability of the sensor was evaluated by conducting cyclic loading tests over one million cycles, and the results showed negligible drift. To account for hysteresis and frequency-dependent effects, a lumped-parameter model was developed to represent the viscoelastic behavior of the sensor. Multiple model orders were considered and compared using validation and test data sets that mimic physiologically relevant dynamics. Results support the choice of a second-order model, which reduces error by 73% compared to a linear calibration. In addition, we evaluated the suitability of this sensor for the proposed application by demonstrating its ability to operate on compliant, curved surfaces. The effects of friction and boundary conditions are also empirically assessed and discussed.
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Affiliation(s)
- Ali Kight
- Department of Bioengineering, Stanford University, Stanford, CA 94305, USA
| | - Ileana Pirozzi
- Department of Bioengineering, Stanford University, Stanford, CA 94305, USA
| | - Xinyi Liang
- Department of Mechanical Engineering, Stanford University, Stanford, CA 94305, USA
| | - Doff B. McElhinney
- Department of Cardiology, Lucile Packard Children’s Hospital, Stanford University, Stanford, CA 94305, USA
| | - Amy Kyungwon Han
- Department of Mechanical Engineering, Seoul National University, Seoul 08826, Republic of Korea
| | - Seraina A. Dual
- Department of Biomedical Engineering, KTH Royal Institute of Technology, 11428 Stockholm, Sweden
| | - Mark Cutkosky
- Department of Mechanical Engineering, Stanford University, Stanford, CA 94305, USA
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13
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The role of the dystrophin glycoprotein complex in muscle cell mechanotransduction. Commun Biol 2022; 5:1022. [PMID: 36168044 PMCID: PMC9515174 DOI: 10.1038/s42003-022-03980-y] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2022] [Accepted: 09/12/2022] [Indexed: 11/09/2022] Open
Abstract
Dystrophin is the central protein of the dystrophin-glycoprotein complex (DGC) in skeletal and heart muscle cells. Dystrophin connects the actin cytoskeleton to the extracellular matrix (ECM). Severing the link between the ECM and the intracellular cytoskeleton has a devastating impact on the homeostasis of skeletal muscle cells, leading to a range of muscular dystrophies. In addition, the loss of a functional DGC leads to progressive dilated cardiomyopathy and premature death. Dystrophin functions as a molecular spring and the DGC plays a critical role in maintaining the integrity of the sarcolemma. Additionally, evidence is accumulating, linking the DGC to mechanosignalling, albeit this role is still less understood. This review article aims at providing an up-to-date perspective on the DGC and its role in mechanotransduction. We first discuss the intricate relationship between muscle cell mechanics and function, before examining the recent research for a role of the dystrophin glycoprotein complex in mechanotransduction and maintaining the biomechanical integrity of muscle cells. Finally, we review the current literature to map out how DGC signalling intersects with mechanical signalling pathways to highlight potential future points of intervention, especially with a focus on cardiomyopathies. A review of the function of the Dystrophic Glycoprotein Complex (DGC) in mechanosignaling provides an overview of the various components of DGC and potential mechanopathogenic mechanisms, particularly as they relate to muscular dystrophy.
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14
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Neffeová K, Olejníčková V, Naňka O, Kolesová H. Development and diseases of the coronary microvasculature and its communication with the myocardium. WIREs Mech Dis 2022; 14:e1560. [DOI: 10.1002/wsbm.1560] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2021] [Revised: 04/12/2022] [Accepted: 04/27/2022] [Indexed: 11/11/2022]
Affiliation(s)
- Kristýna Neffeová
- Institute of Anatomy, First Faculty of Medicine Charles University Prague Czech Republic
| | - Veronika Olejníčková
- Institute of Anatomy, First Faculty of Medicine Charles University Prague Czech Republic
- Institute of Physiology Czech Academy of Science Prague Czech Republic
| | - Ondřej Naňka
- Institute of Anatomy, First Faculty of Medicine Charles University Prague Czech Republic
| | - Hana Kolesová
- Institute of Anatomy, First Faculty of Medicine Charles University Prague Czech Republic
- Institute of Physiology Czech Academy of Science Prague Czech Republic
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15
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Fragasso G, Sanvito F, Monaca G, Ardizzone V, De Bonis M, Pappalardo F, Smart C, Montanaro C, Lapenna E, Calabrese MC, Castiglioni A, Benussi S, Maisano F, Zangrillo A, Ambrosi A, Doglioni C, Alfieri O, Margonato A. Myocardial fibrosis in asymptomatic patients undergoing surgery for mitral and aortic valve regurgitation. J Cardiovasc Med (Hagerstown) 2022; 23:505-512. [PMID: 35904996 DOI: 10.2459/jcm.0000000000001347] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
BACKGROUND Chronic heart valve regurgitation induces left ventricular (LV) volume overload, leading to the development of hypertrophy and progressive dilatation of the ventricle to maintain physiological cardiac output. In order to prevent potential irreversible LV structural changes, the identification of the best timing for treatment is pivotal. OBJECTIVE To assess the presence and extent of fibrosis in myocardial tissue in asymptomatic patients with valvular heart disease (VHD) and preserved LV dimensions and function undergoing cardiac surgery. METHODS Thirty-nine patients were enrolled. Sixteen patients were affected by aortic or mitral regurgitation: they were all asymptomatic, undergoing valve surgery according to VHD European Society of Cardiology guidelines. Twenty-three patients with end-stage nonischemic dilated cardiomyopathy (DCM) and severe LV dysfunction undergoing cardiac surgery for implantation of a durable left ventricular assist device (LVAD) served as controls. During surgery, VHD patients underwent three myocardial biopsies at the level of the septum, the lateral wall and LV apex, while in LVAD patients the coring of the apex of the LV was used. For both groups, the tissue samples were analyzed on one section corresponding to the apical area. All slides were stained with hematoxylin and eosin and Masson's trichrome staining and further digitalized. The degree of fibrosis was then calculated as a percentage of the total area. RESULTS Of 39 patients, 23 met the inclusion criteria: 12 had mitral or aortic insufficiency with a preserved ejection fraction and 11 had idiopathic dilated cardiomyopathy. Quantitative analysis of apical sections revealed a myocardial fibrosis amount of 10 ± 6% in VHD patients, while in LVAD patients the mean apical myocardial fibrosis rate was 38 ± 9%. In VHD patients, fibrosis was also present in the lateral wall (9 ± 4%) and in the septum (9 ± 6%). CONCLUSION Our case series study highlights the presence of tissue remodeling with fibrosis in asymptomatic patients with VHD and preserved LV function. According to our results, myocardial fibrosis is present at an early stage of the disease, well before developing detectable LV dysfunction and symptoms. Since the relationship between the progressive magnitude of myocardial fibrosis and potential prognostic implications are not yet defined, further studies on this topic are warranted.
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Affiliation(s)
| | | | | | | | | | - Federico Pappalardo
- Department of Anesthesia and Intensive Care, IRCCS San Raffaele Scientific Institute, Milano
- Department of Cardiothoracic and Vascular Anesthesia and Intensive Care, AO SS Antonio e Biagio e Cesare Arrigo, Alessandria
| | - Chanel Smart
- Pathology Unit, Division of Experimental Oncology
| | - Claudia Montanaro
- Department of Clinical Cardiology
- Department of Cardiology, Royal Brompton Hospital, London, United Kingdom
| | | | | | | | - Stefano Benussi
- Department of Cardiac Surgery
- Department of Cardiac Surgery, ASST degli Spedali Civili di Brescia
| | | | - Alberto Zangrillo
- Department of Anesthesia and Intensive Care, IRCCS San Raffaele Scientific Institute, Milano
| | - Alessandro Ambrosi
- Department of Biostatistics, University Vita/Salute San Raffaele, Milano, Italy
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16
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Chen Y, Ding JL, Babaiasl M, Yang F, Swensen JP. Characterization and modeling of a thermoplastic elastomer tissue simulant under uniaxial compression loading for a wide range of strain rates. J Mech Behav Biomed Mater 2022; 131:105218. [DOI: 10.1016/j.jmbbm.2022.105218] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/29/2021] [Revised: 03/04/2022] [Accepted: 04/02/2022] [Indexed: 11/16/2022]
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17
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Cardiomyocyte Proliferation from Fetal- to Adult- and from Normal- to Hypertrophy and Failing Hearts. BIOLOGY 2022; 11:biology11060880. [PMID: 35741401 PMCID: PMC9220194 DOI: 10.3390/biology11060880] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/03/2022] [Revised: 05/26/2022] [Accepted: 06/02/2022] [Indexed: 11/20/2022]
Abstract
Simple Summary Death from injury to the heart from a variety of causes remains a major cause of mortality worldwide. The cardiomyocyte, the major contracting cell of the heart, is responsible for pumping blood to the rest of the body. During fetal development, these immature cardiomyocytes are small and rapidly divide to complete development of the heart by birth when they develop structural and functional characteristics of mature cells which prevent further division. All further growth of the heart after birth is due to an increase in the size of cardiomyocytes, hypertrophy. Following the loss of functional cardiomyocytes due to coronary artery occlusion or other causes, the heart is unable to replace the lost cells. One of the significant research goals has been to induce adult cardiomyocytes to reactivate the cell cycle and repair cardiac injury. This review explores the developmental, structural, and functional changes of the growing cardiomyocyte, and particularly the sarcomere, responsible for force generation, from the early fetal period of reproductive cell growth through the neonatal period and on to adulthood, as well as during pathological response to different forms of myocardial diseases or injury. Multiple issues relative to cardiomyocyte cell-cycle regulation in normal or diseased conditions are discussed. Abstract The cardiomyocyte undergoes dramatic changes in structure, metabolism, and function from the early fetal stage of hyperplastic cell growth, through birth and the conversion to hypertrophic cell growth, continuing to the adult stage and responding to various forms of stress on the myocardium, often leading to myocardial failure. The fetal cell with incompletely formed sarcomeres and other cellular and extracellular components is actively undergoing mitosis, organelle dispersion, and formation of daughter cells. In the first few days of neonatal life, the heart is able to repair fully from injury, but not after conversion to hypertrophic growth. Structural and metabolic changes occur following conversion to hypertrophic growth which forms a barrier to further cardiomyocyte division, though interstitial components continue dividing to keep pace with cardiac growth. Both intra- and extracellular structural changes occur in the stressed myocardium which together with hemodynamic alterations lead to metabolic and functional alterations of myocardial failure. This review probes some of the questions regarding conditions that regulate normal and pathologic growth of the heart.
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18
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The focal adhesion protein β-parvin controls cardiomyocyte shape and sarcomere assembly in response to mechanical load. Curr Biol 2022; 32:3033-3047.e9. [PMID: 35688156 DOI: 10.1016/j.cub.2022.05.047] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2021] [Revised: 04/12/2022] [Accepted: 05/17/2022] [Indexed: 01/01/2023]
Abstract
Physiological and pathological cardiac stress induced by exercise and hypertension, respectively, increase the hemodynamic load for the heart and trigger specific hypertrophic signals in cardiomyocytes leading to adaptive or maladaptive cardiac hypertrophy responses involving a mechanosensitive remodeling of the contractile cytoskeleton. Integrins sense load and have been implicated in cardiac hypertrophy, but how they discriminate between the two types of cardiac stress and translate mechanical loads into specific cytoskeletal signaling pathways is not clear. Here, we report that the focal adhesion protein β-parvin is highly expressed in cardiomyocytes and facilitates the formation of cell protrusions, the serial assembly of newly synthesized sarcomeres, and the hypertrophic growth of neonatal rat ventricular cardiomyocytes (NRVCs) in vitro. In addition, physiological mechanical loading of NRVCs by either the application of cyclic, uni-axial stretch, or culture on physiologically stiff substrates promotes NRVC elongation in a β-parvin-dependent manner, which is achieved by binding of β-parvin to α/β-PIX, which in turn activates Rac1. Importantly, loss-of-function studies in mice also revealed that β-parvin is essential for the exercise-induced cardiac hypertrophy response in vivo. Our results identify β-parvin as a novel mechano-responsive signaling hub in hypertrophic cardiomyocytes that drives cell elongation in response to physiological mechanical loads.
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19
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Remodeling and Fibrosis of the Cardiac Muscle in the Course of Obesity-Pathogenesis and Involvement of the Extracellular Matrix. Int J Mol Sci 2022; 23:ijms23084195. [PMID: 35457013 PMCID: PMC9032681 DOI: 10.3390/ijms23084195] [Citation(s) in RCA: 31] [Impact Index Per Article: 15.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2022] [Accepted: 04/09/2022] [Indexed: 12/16/2022] Open
Abstract
Obesity is a growing epidemiological problem, as two-thirds of the adult population are carrying excess weight. It is a risk factor for the development of cardiovascular diseases (hypertension, ischemic heart disease, myocardial infarct, and atrial fibrillation). It has also been shown that chronic obesity in people may be a cause for the development of heart failure with preserved ejection fraction (HFpEF), whose components include cellular hypertrophy, left ventricular diastolic dysfunction, and increased extracellular collagen deposition. Several animal models with induced obesity, via the administration of a high-fat diet, also developed increased heart fibrosis as a result of extracellular collagen accumulation. Excessive collagen deposition in the extracellular matrix (ECM) in the course of obesity may increase the stiffness of the myocardium and thereby deteriorate the heart diastolic function and facilitate the occurrence of HFpEF. In this review, we include a rationale for that process, including a discussion about possible putative factors (such as increased renin–angiotensin–aldosterone activity, sympathetic overdrive, hemodynamic alterations, hypoadiponectinemia, hyperleptinemia, and concomitant heart diseases). To address the topic clearly, we include a description of the fundamentals of ECM turnover, as well as a summary of studies assessing collagen deposition in obese individuals.
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20
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Haupt LP, Rebs S, Maurer W, Hübscher D, Tiburcy M, Pabel S, Maus A, Köhne S, Tappu R, Haas J, Li Y, Sasse A, Santos CCX, Dressel R, Wojnowski L, Bunt G, Möbius W, Shah AM, Meder B, Wollnik B, Sossalla S, Hasenfuss G, Streckfuss-Bömeke K. Doxorubicin induces cardiotoxicity in a pluripotent stem cell model of aggressive B cell lymphoma cancer patients. Basic Res Cardiol 2022; 117:13. [PMID: 35260914 PMCID: PMC8904375 DOI: 10.1007/s00395-022-00918-7] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/13/2020] [Revised: 01/22/2022] [Accepted: 02/07/2022] [Indexed: 01/31/2023]
Abstract
Cancer therapies with anthracyclines have been shown to induce cardiovascular complications. The aims of this study were to establish an in vitro induced pluripotent stem cell model (iPSC) of anthracycline-induced cardiotoxicity (ACT) from patients with an aggressive form of B-cell lymphoma and to examine whether doxorubicin (DOX)-treated ACT-iPSC cardiomyocytes (CM) can recapitulate the clinical features exhibited by patients, and thus help uncover a DOX-dependent pathomechanism. ACT-iPSC CM generated from individuals with CD20+ B-cell lymphoma who had received high doses of DOX and suffered cardiac dysfunction were studied and compared to control-iPSC CM from cancer survivors without cardiac symptoms. In cellular studies, ACT-iPSC CM were persistently more susceptible to DOX toxicity including augmented disorganized myofilament structure, changed mitochondrial shape, and increased apoptotic events. Consistently, ACT-iPSC CM and cardiac fibroblasts isolated from fibrotic human ACT myocardium exhibited higher DOX-dependent reactive oxygen species. In functional studies, Ca2+ transient amplitude of ACT-iPSC CM was reduced compared to control cells, and diastolic sarcoplasmic reticulum Ca2+ leak was DOX-dependently increased. This could be explained by overactive CaMKIIδ in ACT CM. Together with DOX-dependent augmented proarrhythmic cellular triggers and prolonged action potentials in ACT CM, this suggests a cellular link to arrhythmogenic events and contractile dysfunction especially found in ACT engineered human myocardium. CamKIIδ inhibition prevented proarrhythmic triggers in ACT. In contrast, control CM upregulated SERCA2a expression in a DOX-dependent manner, possibly to avoid heart failure conditions. In conclusion, we developed the first human patient-specific stem cell model of DOX-induced cardiac dysfunction from patients with B-cell lymphoma. Our results suggest that DOX-induced stress resulted in arrhythmogenic events associated with contractile dysfunction and finally in heart failure after persistent stress activation in ACT patients.
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Affiliation(s)
- Luis Peter Haupt
- Clinic for Cardiology and Pneumology, University Medical Centre Göttingen, Göttingen, Germany.,DZHK (German Centre for Cardiovascular Research), partner site Göttingen, Göttingen, Germany
| | - Sabine Rebs
- Clinic for Cardiology and Pneumology, University Medical Centre Göttingen, Göttingen, Germany.,DZHK (German Centre for Cardiovascular Research), partner site Göttingen, Göttingen, Germany.,Institute of Pharmacology and Toxicology, Würzburg University, Würzburg, Germany
| | - Wiebke Maurer
- Clinic for Cardiology and Pneumology, University Medical Centre Göttingen, Göttingen, Germany.,DZHK (German Centre for Cardiovascular Research), partner site Göttingen, Göttingen, Germany
| | - Daniela Hübscher
- Clinic for Cardiology and Pneumology, University Medical Centre Göttingen, Göttingen, Germany.,DZHK (German Centre for Cardiovascular Research), partner site Göttingen, Göttingen, Germany
| | - Malte Tiburcy
- DZHK (German Centre for Cardiovascular Research), partner site Göttingen, Göttingen, Germany.,Institute of Pharmacology and Toxicology, University Medical Centre Göttingen, Göttingen, Germany
| | - Steffen Pabel
- Department of Internal Medicine 2, Cardiology, University Medical Centre Regensburg, Regensburg, Germany
| | - Andreas Maus
- Clinic for Cardiology and Pneumology, University Medical Centre Göttingen, Göttingen, Germany.,DZHK (German Centre for Cardiovascular Research), partner site Göttingen, Göttingen, Germany.,King's College London, British Heart Foundation Centre of Excellence, London, UK
| | - Steffen Köhne
- Clinic for Cardiology and Pneumology, University Medical Centre Göttingen, Göttingen, Germany.,DZHK (German Centre for Cardiovascular Research), partner site Göttingen, Göttingen, Germany
| | - Rewati Tappu
- Department of Cardiology, University of Heidelberg, Heidelberg, Germany.,DZHK (German Centrefor Cardiovascular Research), partner site Heidelberg, Heidelberg, Germany
| | - Jan Haas
- Department of Cardiology, University of Heidelberg, Heidelberg, Germany.,DZHK (German Centrefor Cardiovascular Research), partner site Heidelberg, Heidelberg, Germany
| | - Yun Li
- Institute of Human Genetics, University Hospital Centre Göttingen, Göttingen, Germany
| | - Andre Sasse
- Institute of Cellular and Molecular Immunology, University Medical Centre Göttingen, Göttingen, Germany
| | - Celio C X Santos
- King's College London, British Heart Foundation Centre of Excellence, London, UK
| | - Ralf Dressel
- Clinic for Cardiology and Pneumology, University Medical Centre Göttingen, Göttingen, Germany.,DZHK (German Centre for Cardiovascular Research), partner site Göttingen, Göttingen, Germany.,Institute of Cellular and Molecular Immunology, University Medical Centre Göttingen, Göttingen, Germany
| | - Leszek Wojnowski
- Department of Pharmacology, University Medical Centre Mainz, Mainz, Germany
| | - Gertrude Bunt
- Clinical Optical Microscopy, University Medical Centre Göttingen, Göttingen, Germany
| | - Wiebke Möbius
- Department of Neurogenetics, Electron Microscopy Core Unit, Max Planck Institute for Multidisciplinary Sciences, Göttingen, Germany.,Cluster of Excellence "Multiscale Bioimaging: From Molecular Machines to Networks of Excitable Cells" (MBExC), University of Göttingen, Göttingen, Germany
| | - Ajay M Shah
- King's College London, British Heart Foundation Centre of Excellence, London, UK
| | - Benjamin Meder
- Department of Cardiology, University of Heidelberg, Heidelberg, Germany.,DZHK (German Centrefor Cardiovascular Research), partner site Heidelberg, Heidelberg, Germany
| | - Bernd Wollnik
- DZHK (German Centre for Cardiovascular Research), partner site Göttingen, Göttingen, Germany.,Institute of Human Genetics, University Hospital Centre Göttingen, Göttingen, Germany
| | - Samuel Sossalla
- Clinic for Cardiology and Pneumology, University Medical Centre Göttingen, Göttingen, Germany.,DZHK (German Centre for Cardiovascular Research), partner site Göttingen, Göttingen, Germany.,Department of Internal Medicine 2, Cardiology, University Medical Centre Regensburg, Regensburg, Germany
| | - Gerd Hasenfuss
- Clinic for Cardiology and Pneumology, University Medical Centre Göttingen, Göttingen, Germany.,DZHK (German Centre for Cardiovascular Research), partner site Göttingen, Göttingen, Germany
| | - Katrin Streckfuss-Bömeke
- Clinic for Cardiology and Pneumology, University Medical Centre Göttingen, Göttingen, Germany. .,DZHK (German Centre for Cardiovascular Research), partner site Göttingen, Göttingen, Germany. .,Institute of Pharmacology and Toxicology, Würzburg University, Würzburg, Germany.
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21
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Yao Y, Li A, Wang S, Lu Y, Xie J, Zhang H, Zhang D, Ding J, Wang Z, Tu C, Shen L, Zhuang L, Zhu Y, Gao C. Multifunctional elastomer cardiac patches for preventing left ventricle remodeling after myocardial infarction in vivo. Biomaterials 2022; 282:121382. [DOI: 10.1016/j.biomaterials.2022.121382] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2021] [Accepted: 01/18/2022] [Indexed: 01/10/2023]
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22
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Villalobos Lizardi JC, Baranger J, Nguyen MB, Asnacios A, Malik A, Lumens J, Mertens L, Friedberg MK, Simmons CA, Pernot M, Villemain O. A guide for assessment of myocardial stiffness in health and disease. NATURE CARDIOVASCULAR RESEARCH 2022; 1:8-22. [PMID: 39196108 DOI: 10.1038/s44161-021-00007-3] [Citation(s) in RCA: 27] [Impact Index Per Article: 13.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/25/2021] [Accepted: 11/10/2021] [Indexed: 08/29/2024]
Abstract
Myocardial stiffness is an intrinsic property of the myocardium that influences both diastolic and systolic cardiac function. Myocardial stiffness represents the resistance of this tissue to being deformed and depends on intracellular components of the cardiomyocyte, particularly the cytoskeleton, and on extracellular components, such as collagen fibers. Myocardial disease is associated with changes in myocardial stiffness, and its assessment is a key diagnostic marker of acute or chronic pathological myocardial disease with the potential to guide therapeutic decision-making. In this Review, we appraise the different techniques that can be used to estimate myocardial stiffness, evaluate their advantages and disadvantages, and discuss potential clinical applications.
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Affiliation(s)
- José Carlos Villalobos Lizardi
- Division of Cardiology, Department of Pediatrics, The Hospital for Sick Children, University of Toronto, Toronto, Ontario, Canada
| | - Jerome Baranger
- Division of Cardiology, Department of Pediatrics, The Hospital for Sick Children, University of Toronto, Toronto, Ontario, Canada
| | - Minh B Nguyen
- Division of Cardiology, Department of Pediatrics, The Hospital for Sick Children, University of Toronto, Toronto, Ontario, Canada
| | - Atef Asnacios
- Laboratoire Matière et Systèmes Complexes, CNRS UMR 7057, Université de Paris, Paris, France
| | - Aimen Malik
- Division of Cardiology, Department of Pediatrics, The Hospital for Sick Children, University of Toronto, Toronto, Ontario, Canada
| | - Joost Lumens
- Department of Biomedical Engineering, Cardiovascular Research Institute Maastricht (CARIM), Maastricht University, Maastricht, the Netherlands
| | - Luc Mertens
- Division of Cardiology, Department of Pediatrics, The Hospital for Sick Children, University of Toronto, Toronto, Ontario, Canada
| | - Mark K Friedberg
- Division of Cardiology, Department of Pediatrics, The Hospital for Sick Children, University of Toronto, Toronto, Ontario, Canada
| | - Craig A Simmons
- Institute of Biomedical Engineering, University of Toronto, Toronto, Ontario, Canada
| | - Mathieu Pernot
- Physics for Medicine Paris, INSERM U1273, ESPCI Paris, CNRS UMR 8063, PSL Research University, Paris, France
| | - Olivier Villemain
- Division of Cardiology, Department of Pediatrics, The Hospital for Sick Children, University of Toronto, Toronto, Ontario, Canada.
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23
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Loescher CM, Hobbach AJ, Linke WA. Titin (TTN): from molecule to modifications, mechanics and medical significance. Cardiovasc Res 2021; 118:2903-2918. [PMID: 34662387 PMCID: PMC9648829 DOI: 10.1093/cvr/cvab328] [Citation(s) in RCA: 39] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/23/2021] [Accepted: 10/13/2021] [Indexed: 12/19/2022] Open
Abstract
The giant sarcomere protein titin is a major determinant of cardiomyocyte stiffness and contributor to cardiac strain sensing. Titin-based forces are highly regulated in health and disease, which aids in the regulation of myocardial function, including cardiac filling and output. Due to the enormous size, complexity, and malleability of the titin molecule, titin properties are also vulnerable to dysregulation, as observed in various cardiac disorders. This review provides an overview of how cardiac titin properties can be changed at a molecular level, including the role isoform diversity and post-translational modifications (acetylation, oxidation, and phosphorylation) play in regulating myocardial stiffness and contractility. We then consider how this regulation becomes unbalanced in heart disease, with an emphasis on changes in titin stiffness and protein quality control. In this context, new insights into the key pathomechanisms of human cardiomyopathy due to a truncation in the titin gene (TTN) are discussed. Along the way, we touch on the potential for titin to be therapeutically targeted to treat acquired or inherited cardiac conditions, such as HFpEF or TTN-truncation cardiomyopathy.
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Affiliation(s)
- Christine M Loescher
- Institute of Physiology II, University Hospital Münster, Robert-Koch-Str. 27B, Münster, 48149 Germany
| | - Anastasia J Hobbach
- Department of Cardiology I, Coronary, Peripheral Vascular Disease and Heart Failure, University Hospital Münster, Münster, Germany
| | - Wolfgang A Linke
- Institute of Physiology II, University Hospital Münster, Robert-Koch-Str. 27B, Münster, 48149 Germany
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24
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Emig R, Zgierski-Johnston CM, Timmermann V, Taberner AJ, Nash MP, Kohl P, Peyronnet R. Passive myocardial mechanical properties: meaning, measurement, models. Biophys Rev 2021; 13:587-610. [PMID: 34765043 PMCID: PMC8555034 DOI: 10.1007/s12551-021-00838-1] [Citation(s) in RCA: 23] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2021] [Accepted: 08/26/2021] [Indexed: 02/06/2023] Open
Abstract
Passive mechanical tissue properties are major determinants of myocardial contraction and relaxation and, thus, shape cardiac function. Tightly regulated, dynamically adapting throughout life, and affecting a host of cellular functions, passive tissue mechanics also contribute to cardiac dysfunction. Development of treatments and early identification of diseases requires better spatio-temporal characterisation of tissue mechanical properties and their underlying mechanisms. With this understanding, key regulators may be identified, providing pathways with potential to control and limit pathological development. Methodologies and models used to assess and mimic tissue mechanical properties are diverse, and available data are in part mutually contradictory. In this review, we define important concepts useful for characterising passive mechanical tissue properties, and compare a variety of in vitro and in vivo techniques that allow one to assess tissue mechanics. We give definitions of key terms, and summarise insight into determinants of myocardial stiffness in situ. We then provide an overview of common experimental models utilised to assess the role of environmental stiffness and composition, and its effects on cardiac cell and tissue function. Finally, promising future directions are outlined.
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Affiliation(s)
- Ramona Emig
- Institute for Experimental Cardiovascular Medicine, University Heart Center Freiburg, Bad Krozingen, Freiburg, Germany
- Faculty of Medicine, University of Freiburg, Freiburg, Germany
- CIBSS Centre for Integrative Biological Signalling Studies, University of Freiburg, Freiburg, Germany
- Faculty of Biology, University of Freiburg, Freiburg, Germany
| | - Callum M. Zgierski-Johnston
- Institute for Experimental Cardiovascular Medicine, University Heart Center Freiburg, Bad Krozingen, Freiburg, Germany
- Faculty of Medicine, University of Freiburg, Freiburg, Germany
| | - Viviane Timmermann
- Institute for Experimental Cardiovascular Medicine, University Heart Center Freiburg, Bad Krozingen, Freiburg, Germany
- Faculty of Medicine, University of Freiburg, Freiburg, Germany
| | - Andrew J. Taberner
- Auckland Bioengineering Institute, The University of Auckland, Auckland, New Zealand
- Department of Engineering Science, The University of Auckland, Auckland, New Zealand
| | - Martyn P. Nash
- Auckland Bioengineering Institute, The University of Auckland, Auckland, New Zealand
- Department of Engineering Science, The University of Auckland, Auckland, New Zealand
| | - Peter Kohl
- Institute for Experimental Cardiovascular Medicine, University Heart Center Freiburg, Bad Krozingen, Freiburg, Germany
- Faculty of Medicine, University of Freiburg, Freiburg, Germany
- CIBSS Centre for Integrative Biological Signalling Studies, University of Freiburg, Freiburg, Germany
- Faculty of Engineering, University of Freiburg, Freiburg, Germany
| | - Rémi Peyronnet
- Institute for Experimental Cardiovascular Medicine, University Heart Center Freiburg, Bad Krozingen, Freiburg, Germany
- Faculty of Medicine, University of Freiburg, Freiburg, Germany
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25
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Childers RC, Trask AJ, Liu J, Lucchesi PA, Gooch KJ. Paired Pressure-Volume Loop Analysis and Biaxial Mechanical Testing Characterize Differences in Left Ventricular Tissue Stiffness of Volume Overload and Angiotensin-Induced Pressure Overload Hearts. J Biomech Eng 2021; 143:081003. [PMID: 33729495 PMCID: PMC10782875 DOI: 10.1115/1.4050541] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2020] [Revised: 01/29/2021] [Indexed: 12/18/2022]
Abstract
Pressure overload (PO) and volume overload (VO) of the heart result in distinctive changes to geometry, due to compensatory structural remodeling. This remodeling potentially leads to changes in tissue mechanical properties. Understanding such changes is important, as tissue modulus has an impact on cardiac performance, disease progression, and influences on cell phenotype. Pressure-volume (PV) loop analysis, a clinically relevant method for measuring left ventricular (LV) chamber stiffness, was performed in vivo on control rat hearts and rats subjected to either chronic PO through Angiotensin-II infusion (4-weeks) or VO (8-weeks). Immediately following PV loops, biaxial testing was performed on LV free wall tissue to directly measure tissue mechanical properties. The β coefficient, an index of chamber stiffness calculated from the PV loop analysis, increased 98% in PO (n = 4) and decreased 38% in VO (n = 5) compared to control (n = 6). Material constants of LV walls obtained from ex vivo biaxial testing (n = 9-10) were not changed in Angiotensin-II induced PO and decreased by about half in VO compared to control (47% in the circumferential and 57% the longitudinal direction). PV loop analysis showed the expected increase in chamber stiffness of PO and expected decrease in chamber stiffness of VO. Biaxial testing showed a decreased modulus of the myocardium of the VO model, but no changes in the PO model, this suggests the increased chamber stiffness in PO, as shown in the PV loop analysis, may be secondary to changes in tissue mass and/or geometry but not an increase in passive tissue mechanical properties.
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Affiliation(s)
- Rachel C. Childers
- Department of Biomedical Engineering, The Ohio State University, Columbus, OH 43210
| | - Aaron J. Trask
- Center for Cardiovascular Research and The Heart Center, Department of Pediatrics, Nationwide Children's Hospital, The Ohio State University, Columbus, OH 43205
| | - Jun Liu
- Department of Biomedical Engineering, The Ohio State University, Columbus, OH 43210
| | - Pamela A. Lucchesi
- Departments of Pharmacology and Physiology, New York Medical College, Valhalla, NY 10595
| | - Keith J. Gooch
- Institute Frick Center for Heart Failure, Department of Biomedical Engineering, Davis Heart Lung Research, The Ohio State University Fontana Labs, 140 W 19th Avenue, Columbus, OH 43210
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26
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Mooney L, Goodyear CS, Chandra T, Kirschner K, Copland M, Petrie MC, Lang NN. Clonal haematopoiesis of indeterminate potential: intersections between inflammation, vascular disease and heart failure. Clin Sci (Lond) 2021; 135:991-1007. [PMID: 33861346 PMCID: PMC8055963 DOI: 10.1042/cs20200306] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2021] [Revised: 03/12/2021] [Accepted: 04/08/2021] [Indexed: 12/17/2022]
Abstract
Ageing is a major risk factor for the development of cardiovascular disease (CVD) and cancer. Whilst the cumulative effect of exposure to conventional cardiovascular risk factors is important, recent evidence highlights clonal haematopoiesis of indeterminant potential (CHIP) as a further key risk factor. CHIP reflects the accumulation of somatic, potentially pro-leukaemic gene mutations within haematopoietic stem cells over time. The most common mutations associated with CHIP and CVD occur in genes that also play central roles in the regulation of inflammation. While CHIP carriers have a low risk of haematological malignant transformation (<1% per year), their relative risk of mortality is increased by 40% and this reflects an excess of cardiovascular events. Evidence linking CHIP, inflammation and atherosclerotic disease has recently become better defined. However, there is a paucity of information about the role of CHIP in the development and progression of heart failure, particularly heart failure with preserved ejection fraction (HFpEF). While systemic inflammation plays a role in the pathophysiology of both heart failure with reduced and preserved ejection fraction (EF), it may be of greater relevance in the pathophysiology of HFpEF, which is also strongly associated with ageing. This review describes CHIP and its pathogenetic links with ageing, inflammation and CVD, while providing insight into its putative role in HFpEF.
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Affiliation(s)
- Leanne Mooney
- BHF Glasgow Cardiovascular Research Centre, University of Glasgow, Glasgow, U.K
| | - Carl S. Goodyear
- Institute of Immunity, Infection and Inflammation, University of Glasgow, Glasgow, U.K
| | - Tamir Chandra
- The Institute of Genetics and Molecular Medicine, University of Edinburgh, Western General Hospital, Crewe Road, Edinburgh, U.K
| | - Kristina Kirschner
- Paul O’Gorman Leukaemia Research Centre, Institute for Cancer Science, University of Glasgow, Glasgow, U.K
| | - Mhairi Copland
- Paul O’Gorman Leukaemia Research Centre, Institute for Cancer Science, University of Glasgow, Glasgow, U.K
| | - Mark C. Petrie
- BHF Glasgow Cardiovascular Research Centre, University of Glasgow, Glasgow, U.K
| | - Ninian N. Lang
- BHF Glasgow Cardiovascular Research Centre, University of Glasgow, Glasgow, U.K
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27
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Meagher PB, Lee XA, Lee J, Visram A, Friedberg MK, Connelly KA. Cardiac Fibrosis: Key Role of Integrins in Cardiac Homeostasis and Remodeling. Cells 2021; 10:cells10040770. [PMID: 33807373 PMCID: PMC8066890 DOI: 10.3390/cells10040770] [Citation(s) in RCA: 34] [Impact Index Per Article: 11.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2021] [Revised: 03/30/2021] [Accepted: 03/30/2021] [Indexed: 12/11/2022] Open
Abstract
Cardiac fibrosis is a common finding that is associated with the progression of heart failure (HF) and impacts all chambers of the heart. Despite intense research, the treatment of HF has primarily focused upon strategies to prevent cardiomyocyte remodeling, and there are no targeted antifibrotic strategies available to reverse cardiac fibrosis. Cardiac fibrosis is defined as an accumulation of extracellular matrix (ECM) proteins which stiffen the myocardium resulting in the deterioration cardiac function. This occurs in response to a wide range of mechanical and biochemical signals. Integrins are transmembrane cell adhesion receptors, that integrate signaling between cardiac fibroblasts and cardiomyocytes with the ECM by the communication of mechanical stress signals. Integrins play an important role in the development of pathological ECM deposition. This review will discuss the role of integrins in mechano-transduced cardiac fibrosis in response to disease throughout the myocardium. This review will also demonstrate the important role of integrins as both initiators of the fibrotic response, and modulators of fibrosis through their effect on cardiac fibroblast physiology across the various heart chambers.
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Affiliation(s)
- Patrick B. Meagher
- Keenan Research Centre, Li Ka Shing Knowledge Institute, St. Michael’s Hospital, Toronto, ON M5B 1W8, Canada; (P.B.M.); (X.A.L.); (J.L.); (A.V.)
- Department of Physiology, University of Toronto, Toronto, ON M5S 1A8, Canada;
| | - Xavier Alexander Lee
- Keenan Research Centre, Li Ka Shing Knowledge Institute, St. Michael’s Hospital, Toronto, ON M5B 1W8, Canada; (P.B.M.); (X.A.L.); (J.L.); (A.V.)
- Department of Physiology, University of Toronto, Toronto, ON M5S 1A8, Canada;
| | - Joseph Lee
- Keenan Research Centre, Li Ka Shing Knowledge Institute, St. Michael’s Hospital, Toronto, ON M5B 1W8, Canada; (P.B.M.); (X.A.L.); (J.L.); (A.V.)
- Department of Physiology, University of Toronto, Toronto, ON M5S 1A8, Canada;
| | - Aylin Visram
- Keenan Research Centre, Li Ka Shing Knowledge Institute, St. Michael’s Hospital, Toronto, ON M5B 1W8, Canada; (P.B.M.); (X.A.L.); (J.L.); (A.V.)
- Department of Physiology, University of Toronto, Toronto, ON M5S 1A8, Canada;
| | - Mark K. Friedberg
- Department of Physiology, University of Toronto, Toronto, ON M5S 1A8, Canada;
- Institute of Medical Science, University of Toronto, Toronto, ON M5S 1A8, Canada
- Labatt Family Heart Center and Department of Paediatrics, Hospital for Sick Children, Toronto, ON M5G 1X8, Canada
| | - Kim A. Connelly
- Keenan Research Centre, Li Ka Shing Knowledge Institute, St. Michael’s Hospital, Toronto, ON M5B 1W8, Canada; (P.B.M.); (X.A.L.); (J.L.); (A.V.)
- Department of Physiology, University of Toronto, Toronto, ON M5S 1A8, Canada;
- Institute of Medical Science, University of Toronto, Toronto, ON M5S 1A8, Canada
- Correspondence: ; Tel.: +141-686-45201
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28
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Campostrini G, Windt LM, van Meer BJ, Bellin M, Mummery CL. Cardiac Tissues From Stem Cells: New Routes to Maturation and Cardiac Regeneration. Circ Res 2021; 128:775-801. [PMID: 33734815 PMCID: PMC8410091 DOI: 10.1161/circresaha.121.318183] [Citation(s) in RCA: 38] [Impact Index Per Article: 12.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
The ability of human pluripotent stem cells to form all cells of the body has provided many opportunities to study disease and produce cells that can be used for therapy in regenerative medicine. Even though beating cardiomyocytes were among the first cell types to be differentiated from human pluripotent stem cell, cardiac applications have advanced more slowly than those, for example, for the brain, eye, and pancreas. This is, in part, because simple 2-dimensional human pluripotent stem cell cardiomyocyte cultures appear to need crucial functional cues normally present in the 3-dimensional heart structure. Recent tissue engineering approaches combined with new insights into the dialogue between noncardiomyocytes and cardiomyocytes have addressed and provided solutions to issues such as cardiomyocyte immaturity and inability to recapitulate adult heart values for features like contraction force, electrophysiology, or metabolism. Three-dimensional bioengineered heart tissues are thus poised to contribute significantly to disease modeling, drug discovery, and safety pharmacology, as well as provide new modalities for heart repair. Here, we review the current status of 3-dimensional engineered heart tissues.
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Affiliation(s)
- Giulia Campostrini
- Department of Anatomy and Embryology, Leiden University Medical Center, Leiden, the Netherlands (G.C., L.M.W., B.J.v.M., M.B., C.L.M.)
| | - Laura M. Windt
- Department of Anatomy and Embryology, Leiden University Medical Center, Leiden, the Netherlands (G.C., L.M.W., B.J.v.M., M.B., C.L.M.)
| | - Berend J. van Meer
- Department of Anatomy and Embryology, Leiden University Medical Center, Leiden, the Netherlands (G.C., L.M.W., B.J.v.M., M.B., C.L.M.)
- MESA+ Institute (B.J.v.M.), University of Twente, Enschede, the Netherlands
| | - Milena Bellin
- Department of Anatomy and Embryology, Leiden University Medical Center, Leiden, the Netherlands (G.C., L.M.W., B.J.v.M., M.B., C.L.M.)
- Department of Biology, University of Padua, Italy (M.B.)
- Veneto Institute of Molecular Medicine, Padua, Padua, Italy (M.B.)
| | - Christine L. Mummery
- Department of Anatomy and Embryology, Leiden University Medical Center, Leiden, the Netherlands (G.C., L.M.W., B.J.v.M., M.B., C.L.M.)
- Department of Applied Stem Cell Technologies (C.L.M.), University of Twente, Enschede, the Netherlands
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29
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Hagdorn QAJ, Kurakula K, Koop AMC, Bossers GPL, Mavrogiannis E, van Leusden T, van der Feen DE, de Boer RA, Goumans MJTH, Berger RMF. Volume Load-Induced Right Ventricular Failure in Rats Is Not Associated With Myocardial Fibrosis. Front Physiol 2021; 12:557514. [PMID: 33716758 PMCID: PMC7952521 DOI: 10.3389/fphys.2021.557514] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2020] [Accepted: 01/25/2021] [Indexed: 01/15/2023] Open
Abstract
Background Right ventricular (RV) function and failure are key determinants of morbidity and mortality in various cardiovascular diseases. Myocardial fibrosis is regarded as a contributing factor to heart failure, but its importance in RV failure has been challenged. This study aims to assess whether myocardial fibrosis drives the transition from compensated to decompensated volume load-induced RV dysfunction. Methods Wistar rats were subjected to aorto-caval shunt (ACS, n = 23) or sham (control, n = 15) surgery, and sacrificed after 1 month, 3 months, or 6 months. Echocardiography, RV pressure-volume analysis, assessment of gene expression and cardiac histology were performed. Results At 6 months, 6/8 ACS-rats (75%) showed clinical signs of RV failure (pleural effusion, ascites and/or liver edema), whereas at 1 month and 3 months, no signs of RV failure had developed yet. Cardiac output has increased two- to threefold and biventricular dilatation occurred, while LV ejection fraction gradually decreased. At 1 month and 3 months, RV end-systolic elastance (Ees) remained unaltered, but at 6 months, RV Ees had decreased substantially. In the RV, no oxidative stress, inflammation, pro-fibrotic signaling (TGFβ1 and pSMAD2/3), or fibrosis were present at any time point. Conclusions In the ACS rat model, long-term volume load was initially well tolerated at 1 month and 3 months, but induced overt clinical signs of end-stage RV failure at 6 months. However, no myocardial fibrosis or increased pro-fibrotic signaling had developed. These findings indicate that myocardial fibrosis is not involved in the transition from compensated to decompensated RV dysfunction in this model.
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Affiliation(s)
- Quint A J Hagdorn
- Center for Congenital Heart Diseases, Department of Pediatric Cardiology, Beatrix Children's Hospital, University Medical Center Groningen, University of Groningen, Groningen, Netherlands
| | - Kondababu Kurakula
- Department of Cell and Chemical Biology, Leiden University Medical Center, Leiden, Netherlands
| | - Anne-Marie C Koop
- Center for Congenital Heart Diseases, Department of Pediatric Cardiology, Beatrix Children's Hospital, University Medical Center Groningen, University of Groningen, Groningen, Netherlands
| | - Guido P L Bossers
- Center for Congenital Heart Diseases, Department of Pediatric Cardiology, Beatrix Children's Hospital, University Medical Center Groningen, University of Groningen, Groningen, Netherlands
| | - Emmanouil Mavrogiannis
- Center for Congenital Heart Diseases, Department of Pediatric Cardiology, Beatrix Children's Hospital, University Medical Center Groningen, University of Groningen, Groningen, Netherlands
| | - Tom van Leusden
- Center for Congenital Heart Diseases, Department of Pediatric Cardiology, Beatrix Children's Hospital, University Medical Center Groningen, University of Groningen, Groningen, Netherlands
| | - Diederik E van der Feen
- Center for Congenital Heart Diseases, Department of Pediatric Cardiology, Beatrix Children's Hospital, University Medical Center Groningen, University of Groningen, Groningen, Netherlands
| | - Rudolf A de Boer
- Department of Cardiology, University Medical Center Groningen, University of Groningen, Groningen, Netherlands
| | - Marie-José T H Goumans
- Department of Cell and Chemical Biology, Leiden University Medical Center, Leiden, Netherlands
| | - Rolf M F Berger
- Center for Congenital Heart Diseases, Department of Pediatric Cardiology, Beatrix Children's Hospital, University Medical Center Groningen, University of Groningen, Groningen, Netherlands
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30
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Münch J, Abdelilah-Seyfried S. Sensing and Responding of Cardiomyocytes to Changes of Tissue Stiffness in the Diseased Heart. Front Cell Dev Biol 2021; 9:642840. [PMID: 33718383 PMCID: PMC7952448 DOI: 10.3389/fcell.2021.642840] [Citation(s) in RCA: 36] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2020] [Accepted: 02/09/2021] [Indexed: 12/20/2022] Open
Abstract
Cardiomyocytes are permanently exposed to mechanical stimulation due to cardiac contractility. Passive myocardial stiffness is a crucial factor, which defines the physiological ventricular compliance and volume of diastolic filling with blood. Heart diseases often present with increased myocardial stiffness, for instance when fibrotic changes modify the composition of the cardiac extracellular matrix (ECM). Consequently, the ventricle loses its compliance, and the diastolic blood volume is reduced. Recent advances in the field of cardiac mechanobiology revealed that disease-related environmental stiffness changes cause severe alterations in cardiomyocyte cellular behavior and function. Here, we review the molecular mechanotransduction pathways that enable cardiomyocytes to sense stiffness changes and translate those into an altered gene expression. We will also summarize current knowledge about when myocardial stiffness increases in the diseased heart. Sophisticated in vitro studies revealed functional changes, when cardiomyocytes faced a stiffer matrix. Finally, we will highlight recent studies that described modulations of cardiac stiffness and thus myocardial performance in vivo. Mechanobiology research is just at the cusp of systematic investigations related to mechanical changes in the diseased heart but what is known already makes way for new therapeutic approaches in regenerative biology.
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Affiliation(s)
- Juliane Münch
- Institute of Biochemistry and Biology, University of Potsdam, Potsdam, Germany
| | - Salim Abdelilah-Seyfried
- Institute of Biochemistry and Biology, University of Potsdam, Potsdam, Germany.,Institute of Molecular Biology, Hannover Medical School, Hannover, Germany
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31
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Lafuse WP, Wozniak DJ, Rajaram MVS. Role of Cardiac Macrophages on Cardiac Inflammation, Fibrosis and Tissue Repair. Cells 2020; 10:E51. [PMID: 33396359 PMCID: PMC7824389 DOI: 10.3390/cells10010051] [Citation(s) in RCA: 175] [Impact Index Per Article: 43.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2020] [Revised: 12/22/2020] [Accepted: 12/28/2020] [Indexed: 12/17/2022] Open
Abstract
The immune system plays a pivotal role in the initiation, development and resolution of inflammation following insult or damage to organs. The heart is a vital organ which supplies nutrients and oxygen to all parts of the body. Heart failure (HF) has been conventionally described as a disease associated with cardiac tissue damage caused by systemic inflammation, arrhythmia and conduction defects. Cardiac inflammation and subsequent tissue damage is orchestrated by the infiltration and activation of various immune cells including neutrophils, monocytes, macrophages, eosinophils, mast cells, natural killer cells, and T and B cells into the myocardium. After tissue injury, monocytes and tissue-resident macrophages undergo marked phenotypic and functional changes, and function as key regulators of tissue repair, regeneration and fibrosis. Disturbance in resident macrophage functions such as uncontrolled production of inflammatory cytokines, growth factors and inefficient generation of an anti-inflammatory response or unsuccessful communication between macrophages and epithelial and endothelial cells and fibroblasts can lead to aberrant repair, persistent injury, and HF. Therefore, in this review, we discuss the role of cardiac macrophages on cardiac inflammation, tissue repair, regeneration and fibrosis.
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Affiliation(s)
- William P. Lafuse
- Department of Microbial Infection and Immunity, College of Medicine, Ohio State University, Columbus, OH 43210, USA; (W.P.L.); (D.J.W.)
| | - Daniel J. Wozniak
- Department of Microbial Infection and Immunity, College of Medicine, Ohio State University, Columbus, OH 43210, USA; (W.P.L.); (D.J.W.)
- Department of Microbiology, Ohio State University, Columbus, OH 43210, USA
| | - Murugesan V. S. Rajaram
- Department of Microbial Infection and Immunity, College of Medicine, Ohio State University, Columbus, OH 43210, USA; (W.P.L.); (D.J.W.)
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32
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Chandika P, Heo SY, Kim TH, Oh GW, Kim GH, Kim MS, Jung WK. Recent advances in biological macromolecule based tissue-engineered composite scaffolds for cardiac tissue regeneration applications. Int J Biol Macromol 2020; 164:2329-2357. [DOI: 10.1016/j.ijbiomac.2020.08.054] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2020] [Revised: 08/01/2020] [Accepted: 08/06/2020] [Indexed: 12/11/2022]
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Allijn I, Ribeiro M, Poot A, Passier R, Stamatialis D. Membranes for Modelling Cardiac Tissue Stiffness In Vitro Based on Poly(trimethylene carbonate) and Poly(ethylene glycol) Polymers. MEMBRANES 2020; 10:membranes10100274. [PMID: 33022962 PMCID: PMC7650615 DOI: 10.3390/membranes10100274] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/08/2020] [Revised: 09/29/2020] [Accepted: 10/01/2020] [Indexed: 12/15/2022]
Abstract
Despite the increased expenditure of the pharmaceutical industry on research and development, the number of drugs for cardiovascular diseases that reaches the market is decreasing. A major issue is the limited ability of the current in vitro and experimental animal models to accurately mimic human heart disease, which hampers testing of the efficacy of potential cardiac drugs. Moreover, many non-heart-related drugs have severe adverse cardiac effects, which is a major cause of drugs’ retraction after approval. A main hurdle of current in vitro models is their inability to mimic the stiffness of in vivo cardiac tissue. For instance, poly(styrene) petri dishes, which are often used in these models, have a Young’s modulus in the order of GPa, while the stiffness of healthy human heart tissue is <50 kPa. In pathological conditions, such as scarring and fibrosis, the stiffness of heart tissue is in the >100 kPa range. In this study, we focus on developing new membranes, with a set of properties for mimicry of cardiac tissue stiffness in vitro, based on methacrylate-functionalized macromers and triblock-copolymers of poly(trimethylene carbonate) and poly(ethylene glycol). The new membranes have Young’s moduli in the hydrated state ranging from 18 kPa (healthy tissue) to 2.5 MPa (pathological tissue), and are suitable for cell contraction studies using human pluripotent stem-cell-derived cardiomyocytes. The membranes with higher hydrophilicity have low drug adsorption and low Young’s moduli and could be suitable for drug screening applications.
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Affiliation(s)
- Iris Allijn
- Bioartificial Organs, Biomaterials Science and Technology, University of Twente, 7500 AE Enschede, The Netherlands;
- Correspondence:
| | - Marcelo Ribeiro
- Applied Stem Cell Technologies, University of Twente, 7500 AE Enschede, The Netherlands; (M.R.); (R.P.)
| | - André Poot
- Biomaterials and Regenerative Medicine, Biomaterials Science and Technology, University of Twente, 7500 AE Enschede, The Netherlands;
| | - Robert Passier
- Applied Stem Cell Technologies, University of Twente, 7500 AE Enschede, The Netherlands; (M.R.); (R.P.)
| | - Dimitrios Stamatialis
- Bioartificial Organs, Biomaterials Science and Technology, University of Twente, 7500 AE Enschede, The Netherlands;
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Swiatlowska P, Sanchez-Alonso JL, Mansfield C, Scaini D, Korchev Y, Novak P, Gorelik J. Short-term angiotensin II treatment regulates cardiac nanomechanics via microtubule modifications. NANOSCALE 2020; 12:16315-16329. [PMID: 32720664 DOI: 10.1039/d0nr02474k] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Mechanical properties of single myocytes contribute to the whole heart performance, but the measurement of mechanics in living cells at high resolution with minimal force interaction remains challenging. Angiotensin II (AngII) is a peptide hormone that regulates a number of physiological functions, including heart performance. It has also been shown to contribute to cell mechanics by inducing cell stiffening. Using non-contact high-resolution Scanning Ion Conductance Microscopy (SICM), we determine simultaneously cell topography and membrane transverse Young's modulus (YM) by a constant pressure application through a nanopipette. While applying pressure, the vertical position is recorded and a deformation map is generated from which YM can be calculated and corrected for the uneven geometry. High resolution of this method also allows studying specific membrane subdomains, such as Z-grooves and crests. We found that short-term AngII treatment reduces the transversal YM in isolated adult rat cardiomyocytes acting via an AT1 receptor. Blocking either a TGF-β1 receptor or Rho kinase abolishes this effect. Analysis of the cytoskeleton showed that AngII depletes microtubules by decreasing long-lived detyrosinated and acetylated microtubule populations. Interestingly, in the failing cardiomyocytes, which are stiffer than controls, the short-term AngII treatment also reduces the YM, thus normalizing the mechanical state of cells. This suggests that the short-term softening effect of AngII on cardiac cells is opposite to the well-characterized long-term hypertrophic effect. In conclusion, we generate a precise nanoscale indication map of location-specific transverse cortical YM within the cell and this can substantially advance our understanding of cellular mechanics in a physiological environment, for example in isolated cardiac myocytes.
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Affiliation(s)
- Pamela Swiatlowska
- Department of Cardiovascular Sciences, National Heart and Lung Institute, Faculty of Medicine, Imperial College London, London, UK.
| | - Jose L Sanchez-Alonso
- Department of Cardiovascular Sciences, National Heart and Lung Institute, Faculty of Medicine, Imperial College London, London, UK.
| | - Catherine Mansfield
- Department of Cardiovascular Sciences, National Heart and Lung Institute, Faculty of Medicine, Imperial College London, London, UK.
| | - Denis Scaini
- Department of Medicine, Imperial College London, London, UK and International School for Advanced Studies, Trieste, Italy
| | - Yuri Korchev
- Department of Medicine, Imperial College London, London, UK and Nano Life Science Institute (WPI-NanoLSI), Kanazawa University, Kakuma-machi, Kanazawa 920-1192, Japan
| | - Pavel Novak
- Department of Medicine, Imperial College London, London, UK and National University of Science and Technology, MISiS, Leninskiy prospect 4, Moscow, 119991, Russia
| | - Julia Gorelik
- Department of Cardiovascular Sciences, National Heart and Lung Institute, Faculty of Medicine, Imperial College London, London, UK.
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Sabbadini A, Keijzer LBH, Vos HJ, de Jong N, Verweij MD. Fundamental modeling of wave propagation in temporally relaxing media with applications to cardiac shear wave elastography. THE JOURNAL OF THE ACOUSTICAL SOCIETY OF AMERICA 2020; 147:3091. [PMID: 32486810 DOI: 10.1121/10.0001161] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/12/2019] [Accepted: 04/09/2020] [Indexed: 06/11/2023]
Abstract
Shear wave elastography (SWE) might allow non-invasive assessment of cardiac stiffness by relating shear wave propagation speed to material properties. However, after aortic valve closure, when natural shear waves occur in the septal wall, the stiffness of the muscle decreases significantly, and the effects of such temporal variation of medium properties on shear wave propagation have not been investigated yet. The goal of this work is to fundamentally investigate these effects. To this aim, qualitative results were first obtained experimentally using a mechanical setup, and were then combined with quantitative results from finite difference simulations. The results show that the amplitude and period of the waves increase during propagation, proportional to the relaxation of the medium, and that reflected waves can originate from the temporal stiffness variation. These general results, applied to literature data on cardiac stiffness throughout the heart cycle, predict as a major effect a period increase of 20% in waves propagating during a healthy diastolic phase, whereas only a 10% increase would result from the impaired relaxation of an infarcted heart. Therefore, cardiac relaxation can affect the propagation of waves used for SWE measurements and might even provide direct information on the correct relaxation of a heart.
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Affiliation(s)
- A Sabbadini
- Applied Sciences, Delft University of Technology, Lorentzweg 1, Delft, 2628 CJ, The Netherlands
| | - L B H Keijzer
- Biomedical Engineering, Department of Cardiology, Erasmus MC, University Medical Center Rotterdam, Doctor Molewaterplein 40, Rotterdam, 3015 GD, The Netherlands
| | - H J Vos
- Biomedical Engineering, Department of Cardiology, Erasmus MC, University Medical Center Rotterdam, Doctor Molewaterplein 40, Rotterdam, 3015 GD, The Netherlands
| | - N de Jong
- Applied Sciences, Delft University of Technology, Lorentzweg 1, Delft, 2628 CJ, The Netherlands
| | - M D Verweij
- Applied Sciences, Delft University of Technology, Lorentzweg 1, Delft, 2628 CJ, The Netherlands
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Law JP, Price AM, Pickup L, Radhakrishnan A, Weston C, Jones AM, McGettrick HM, Chua W, Steeds RP, Fabritz L, Kirchhof P, Pavlovic D, Townend JN, Ferro CJ. Clinical Potential of Targeting Fibroblast Growth Factor-23 and αKlotho in the Treatment of Uremic Cardiomyopathy. J Am Heart Assoc 2020; 9:e016041. [PMID: 32212912 PMCID: PMC7428638 DOI: 10.1161/jaha.120.016041] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
Chronic kidney disease is highly prevalent, affecting 10% to 15% of the adult population worldwide and is associated with increased cardiovascular morbidity and mortality. As chronic kidney disease worsens, a unique cardiovascular phenotype develops characterized by heart muscle disease, increased arterial stiffness, atherosclerosis, and hypertension. Cardiovascular risk is multifaceted, but most cardiovascular deaths in patients with advanced chronic kidney disease are caused by heart failure and sudden cardiac death. While the exact drivers of these deaths are unknown, they are believed to be caused by uremic cardiomyopathy: a specific pattern of myocardial hypertrophy, fibrosis, with both diastolic and systolic dysfunction. Although the pathogenesis of uremic cardiomyopathy is likely to be multifactorial, accumulating evidence suggests increased production of fibroblast growth factor-23 and αKlotho deficiency as potential major drivers of cardiac remodeling in patients with uremic cardiomyopathy. In this article we review the increasing understanding of the physiology and clinical aspects of uremic cardiomyopathy and the rapidly increasing knowledge of the biology of both fibroblast growth factor-23 and αKlotho. Finally, we discuss how dissection of these pathological processes is aiding the development of therapeutic options, including small molecules and antibodies, directly aimed at improving the cardiovascular outcomes of patients with chronic kidney disease and end-stage renal disease.
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Affiliation(s)
- Jonathan P. Law
- Birmingham Cardio‐Renal GroupUniversity Hospitals BirminghamUniversity of BirminghamUnited Kingdom
- Institute of Cardiovascular SciencesUniversity of BirminghamUnited Kingdom
- Department of NephrologyUniversity Hospitals Birmingham NHS Foundation TrustBirminghamUnited Kingdom
| | - Anna M. Price
- Birmingham Cardio‐Renal GroupUniversity Hospitals BirminghamUniversity of BirminghamUnited Kingdom
- Institute of Cardiovascular SciencesUniversity of BirminghamUnited Kingdom
- Department of NephrologyUniversity Hospitals Birmingham NHS Foundation TrustBirminghamUnited Kingdom
| | - Luke Pickup
- Birmingham Cardio‐Renal GroupUniversity Hospitals BirminghamUniversity of BirminghamUnited Kingdom
- Institute of Cardiovascular SciencesUniversity of BirminghamUnited Kingdom
| | - Ashwin Radhakrishnan
- Birmingham Cardio‐Renal GroupUniversity Hospitals BirminghamUniversity of BirminghamUnited Kingdom
| | - Chris Weston
- Institute of Immunology and ImmunotherapyUniversity of BirminghamUnited Kingdom
- NIHR Birmingham Biomedical Research CentreUniversity Hospitals Birmingham NHS Foundation Trust and University of BirminghamUnited Kingdom
| | - Alan M. Jones
- School of PharmacyUniversity of BirminghamUnited Kingdom
| | | | - Winnie Chua
- Birmingham Cardio‐Renal GroupUniversity Hospitals BirminghamUniversity of BirminghamUnited Kingdom
- Institute of Cardiovascular SciencesUniversity of BirminghamUnited Kingdom
| | - Richard P. Steeds
- Birmingham Cardio‐Renal GroupUniversity Hospitals BirminghamUniversity of BirminghamUnited Kingdom
- Institute of Cardiovascular SciencesUniversity of BirminghamUnited Kingdom
- Department of CardiologyUniversity Hospitals Birmingham NHS Foundation TrustBirminghamUnited Kingdom
| | - Larissa Fabritz
- Birmingham Cardio‐Renal GroupUniversity Hospitals BirminghamUniversity of BirminghamUnited Kingdom
- Institute of Cardiovascular SciencesUniversity of BirminghamUnited Kingdom
- Department of CardiologyUniversity Hospitals Birmingham NHS Foundation TrustBirminghamUnited Kingdom
| | - Paulus Kirchhof
- Birmingham Cardio‐Renal GroupUniversity Hospitals BirminghamUniversity of BirminghamUnited Kingdom
- Institute of Cardiovascular SciencesUniversity of BirminghamUnited Kingdom
| | - Davor Pavlovic
- Birmingham Cardio‐Renal GroupUniversity Hospitals BirminghamUniversity of BirminghamUnited Kingdom
- Institute of Cardiovascular SciencesUniversity of BirminghamUnited Kingdom
| | - Jonathan N. Townend
- Birmingham Cardio‐Renal GroupUniversity Hospitals BirminghamUniversity of BirminghamUnited Kingdom
- Institute of Cardiovascular SciencesUniversity of BirminghamUnited Kingdom
- Department of CardiologyUniversity Hospitals Birmingham NHS Foundation TrustBirminghamUnited Kingdom
| | - Charles J. Ferro
- Birmingham Cardio‐Renal GroupUniversity Hospitals BirminghamUniversity of BirminghamUnited Kingdom
- Institute of Cardiovascular SciencesUniversity of BirminghamUnited Kingdom
- Department of NephrologyUniversity Hospitals Birmingham NHS Foundation TrustBirminghamUnited Kingdom
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Wang C, Li VWY, So EKF, Cheung YF. Left Ventricular Stiffness in Adolescents and Young Adults After Arterial Switch Operation for Complete Transposition of the Great Arteries. Pediatr Cardiol 2020; 41:747-754. [PMID: 32006085 DOI: 10.1007/s00246-020-02305-2] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/06/2019] [Accepted: 01/22/2020] [Indexed: 12/22/2022]
Abstract
We tested the hypothesis that left ventricular (LV) myocardial stiffness is altered in patients with transposition of great arteries (TGA) after arterial switch operation (ASO) and explored its associations with myocardial calibrated integrated backscatter (cIB) and LV myocardial deformation. Thirty-one patients and twenty-two age-matched controls were studied. LV myocardial stiffness was assessed by diastolic wall strain (DWS) and stiffness indices including (E/e)/LV end-diastolic dimension, (E/LV global longitudinal early diastolic strain rate)/LV end-diastolic volume, and (E/LV global circumferential early diastolic strain rate)/LV end-diastolic volume, where E and e are early diastolic transmitral and mitral annular velocities, respectively. LV myocardial cIB and longitudinal and circumferential myocardial deformation were determined by conventional and speckle tracking echocardiography. Patients had significantly lower DWS, higher stiffness indices, and greater myocardial cIB than controls (all p < 0.05). The LV longitudinal and circumferential systolic strain and systolic and diastolic strain rates were significantly lower in patients than controls (all p < 0.05). Greater average myocardial cIB was associated with lower DWS (r = - 0.44, p = 0.002). Worse DWS and LV stiffness indices were found to correlate with lower mitral annular systolic velocity, mitral annular late diastolic velocity, and LV longitudinal late diastolic strain rate (all p < 0.05). LV longitudinal and circumferential systolic strain and strain rate were also found to correlate with DWS (all p < 0.05). In conclusion, LV myocardial stiffening occurs in adolescents and young adults with TGA after ASO and is associated with impairment of ventricular systolic and diastolic myocardial deformation and myocardial fibrosis.
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Affiliation(s)
- Chuan Wang
- Division of Paediatric Cardiology, Department of Paediatrics and Adolescent Medicine, Queen Mary Hospital, The University of Hong Kong, 102, Pokfulam Road, Hong Kong, China
- Department of Pediatric Cardiology, West China Second University Hospital, Sichuan University, Chengdu, Sichuan, China
| | - Vivian Wing-Yi Li
- Division of Paediatric Cardiology, Department of Paediatrics and Adolescent Medicine, Queen Mary Hospital, The University of Hong Kong, 102, Pokfulam Road, Hong Kong, China
| | - Edwina Kam-Fung So
- Division of Paediatric Cardiology, Department of Paediatrics and Adolescent Medicine, Queen Mary Hospital, The University of Hong Kong, 102, Pokfulam Road, Hong Kong, China
| | - Yiu-Fai Cheung
- Division of Paediatric Cardiology, Department of Paediatrics and Adolescent Medicine, Queen Mary Hospital, The University of Hong Kong, 102, Pokfulam Road, Hong Kong, China.
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Blair CA, Pruitt BL. Mechanobiology Assays with Applications in Cardiomyocyte Biology and Cardiotoxicity. Adv Healthc Mater 2020; 9:e1901656. [PMID: 32270928 PMCID: PMC7480481 DOI: 10.1002/adhm.201901656] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2019] [Revised: 01/31/2020] [Accepted: 02/03/2020] [Indexed: 12/19/2022]
Abstract
Cardiomyocytes are the motor units that drive the contraction and relaxation of the heart. Traditionally, testing of drugs for cardiotoxic effects has relied on primary cardiomyocytes from animal models and focused on short-term, electrophysiological, and arrhythmogenic effects. However, primary cardiomyocytes present challenges arising from their limited viability in culture, and tissue from animal models suffers from a mismatch in their physiology to that of human heart muscle. Human-induced pluripotent stem cell-derived cardiomyocytes (hiPSC-CMs) can address these challenges. They also offer the potential to study not only electrophysiological effects but also changes in cardiomyocyte contractile and mechanical function in response to cardiotoxic drugs. With growing recognition of the long-term cardiotoxic effects of some drugs on subcellular structure and function, there is increasing interest in using hiPSC-CMs for in vitro cardiotoxicity studies. This review provides a brief overview of techniques that can be used to quantify changes in the active force that cardiomyocytes generate and variations in their inherent stiffness in response to cardiotoxic drugs. It concludes by discussing the application of these tools in understanding how cardiotoxic drugs directly impact the mechanobiology of cardiomyocytes and how cardiomyocytes sense and respond to mechanical load at the cellular level.
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Affiliation(s)
- Cheavar A. Blair
- Department of mechanical Engineering, University of California Santa Barbara, Santa Barbara, CA, USA
- Biomolecular Science and Engineering, University of California Santa Barbara, Santa Barbara, CA, USA
| | - Beth L. Pruitt
- Department of mechanical Engineering, University of California Santa Barbara, Santa Barbara, CA, USA
- Biomolecular Science and Engineering, University of California Santa Barbara, Santa Barbara, CA, USA
- Molecular, Cellular and Developmental Biology, University of California Santa Barbara, Santa Barbara, CA, USA
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Ribeiro MC, Slaats RH, Schwach V, Rivera-Arbelaez JM, Tertoolen LGJ, van Meer BJ, Molenaar R, Mummery CL, Claessens MMAE, Passier R. A cardiomyocyte show of force: A fluorescent alpha-actinin reporter line sheds light on human cardiomyocyte contractility versus substrate stiffness. J Mol Cell Cardiol 2020; 141:54-64. [PMID: 32205183 DOI: 10.1016/j.yjmcc.2020.03.008] [Citation(s) in RCA: 35] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/01/2019] [Revised: 03/17/2020] [Accepted: 03/18/2020] [Indexed: 01/09/2023]
Abstract
Cardiovascular disease is often associated with cardiac remodeling, including cardiac fibrosis, which may lead to increased stiffness of the heart wall. This stiffness in turn may cause subsequent failure of cardiac myocytes, however the response of these cells to increased substrate stiffness is largely unknown. To investigate the contractile response of human pluripotent stem cell-derived cardiomyocytes (hPSC-CMs) to increased substrate stiffness, we generated a stable transgenic human pluripotent stem cell line expressing a fusion protein of α-Actinin and fluorescent mRubyII in a previously characterized NKX2.5-GFP reporter line. Cardiomyocytes differentiated from this line were subjected to a substrate with stiffness ranging from 4 kPa to 101 kPa, while contraction of sarcomeres and bead displacement in the substrate were measured for each single cardiomyocyte. We found that sarcomere dynamics in hPSC-CMs on polyacrylamide gels of increasing stiffness are not affected above physiological levels (21 kPa), but that contractile force increases up to a stiffness of 90 kPa, at which cell shortening, deducted from bead displacement, is significantly reduced compared to physiological stiffness. We therefore hypothesize that this discrepancy may be the cause of intracellular stress that leads to hypertrophy and consequent heart failure in vivo.
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Affiliation(s)
- Marcelo C Ribeiro
- Department of Applied Stem Cell Technologies, TechMed Centre, University of Twente, Drienerlolaan 5, 7500AE Enschede, the Netherlands
| | - Rolf H Slaats
- Department of Applied Stem Cell Technologies, TechMed Centre, University of Twente, Drienerlolaan 5, 7500AE Enschede, the Netherlands
| | - Verena Schwach
- Department of Applied Stem Cell Technologies, TechMed Centre, University of Twente, Drienerlolaan 5, 7500AE Enschede, the Netherlands
| | - José M Rivera-Arbelaez
- Department of Applied Stem Cell Technologies, TechMed Centre, University of Twente, Drienerlolaan 5, 7500AE Enschede, the Netherlands
| | - Leon G J Tertoolen
- Department of Anatomy and Embryology, Leiden University Medical Centre, PO Box 9600, 2300, RC, Leiden, the Netherlands
| | - Berend J van Meer
- Department of Anatomy and Embryology, Leiden University Medical Centre, PO Box 9600, 2300, RC, Leiden, the Netherlands
| | - Robert Molenaar
- NanoBioPhysics Group, TechMed Centre, University of Twente, Drienerlolaan 5, 7500AE Enschede, the Netherlands
| | - Christine L Mummery
- Department of Applied Stem Cell Technologies, TechMed Centre, University of Twente, Drienerlolaan 5, 7500AE Enschede, the Netherlands; Department of Anatomy and Embryology, Leiden University Medical Centre, PO Box 9600, 2300, RC, Leiden, the Netherlands
| | - Mireille M A E Claessens
- NanoBioPhysics Group, TechMed Centre, University of Twente, Drienerlolaan 5, 7500AE Enschede, the Netherlands
| | - Robert Passier
- Department of Applied Stem Cell Technologies, TechMed Centre, University of Twente, Drienerlolaan 5, 7500AE Enschede, the Netherlands; Department of Anatomy and Embryology, Leiden University Medical Centre, PO Box 9600, 2300, RC, Leiden, the Netherlands.
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Zeng Z, Wang Q, Yang X, Ren Y, Jiao S, Zhu Q, Guo D, Xia K, Wang Y, Li C, Wang W. Qishen granule attenuates cardiac fibrosis by regulating TGF-β /Smad3 and GSK-3β pathway. PHYTOMEDICINE : INTERNATIONAL JOURNAL OF PHYTOTHERAPY AND PHYTOPHARMACOLOGY 2019; 62:152949. [PMID: 31102891 DOI: 10.1016/j.phymed.2019.152949] [Citation(s) in RCA: 55] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/20/2018] [Revised: 05/04/2019] [Accepted: 05/05/2019] [Indexed: 06/09/2023]
Abstract
BACKGROUND Cardiac fibrosis is a common pathological progress of cardiovascular disease resulting from the excessive accumulation of extracellular matrix (ECM). Transforming growth factor (TGF)-β/SMADs pathway is a canonical signaling pathway which directly induces expressions of ECM related genes. Qishen Granule (QSG), a traditional Chinese formula developed from Zhen-Wu Decoration for heart failure (HF), has been proven to have definite therapeutic effects on cardiac fibrosis. However, its underlying mechanisms remain unclear. PURPOSE To investigate the effects of QSG on TGF-β pathway and the downstream mediators including Smad3 and Glycogen synthase kinase (GSK)-3β. METHODS HF model was induced by ligation of left coronary artery on male Sprague-Dawley (SD) rats. Rat were randomly divided into four groups including sham group, model group, QSG group and Fosinopril control group. Rats in each group were treated for 28 days, and 2D echocardiography was adopted to evaluate the heart function. The degree of cardiac fibrosis was assessed by Hematoxylin-Eosin (HE), Masson's trichrome and Picrosirius red (PSR) staining. Contents of collagen Ⅰ and Ⅲ were assessed by immunohistochemical method. Expressions of genes and proteins in TGF-β/SMADs and PI3K-GSK-3 signaling pathways were detected by Real-time Fluorescence Quantitative PCR (RT-qPCR) and Western blot respectively. TGF-β1-treated cardiac fibroblasts of neonatal SD rats were adopted for in vitro studies. RESULTS 28 days after the surgery, cardiac ejection fraction (EF) and fractional shortening (FS) values in the model group showed a remarkable decrease, indicating the induction of HF model. QSG and Fosinopril elevated the EF and FS values, demonstrating cardio-protective effects. Pathological staining and immunohistochemistry showed that the contents of collagen I and III dramatically increased in the cardiac tissue of the model group compared with the sham group while QSG treatment reduced collagen contents. Furthermore, expressions of TGF-β1, p-Smad3 and p-GSK-3β were significantly decreased in the QSG treatment group compared with the model group, suggesting that the QSG may attenuate cardiac fibrosis through regulating TGF-β/Smad3 pathway. In vitro study further showed that the productions of type Ⅰ and Ⅲ collagen and α-smooth muscle actin (α-SMA) of cardiac fibroblasts were significantly increased by incubation with TGF-β1. QSG could markedly reduce the secretion of collagen Ⅰ and Ⅲ and α-SMA expression. Protein expressions of p-Smad3, PI3K, p-Akt and p-GSK-3β were significantly up-regulated by stimulation of TGF-β1. Treatment with QSG could suppress the activity of Smad3 and PI3K-GSK-3β signaling pathway in cardiac fibroblasts. CONCLUSION QSG improves cardiac function through inhibiting cardiac fibrosis. The anti-fibrotic effects are potentially mediated by the inhibition of the TGF-β/Smad3 pathway and the phosphorylation of GSK-3β.
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Affiliation(s)
- Zifan Zeng
- School of Traditional Chinese Medicine, Beijing University of Chinese Medicine, No. 11, Bei San Huan Dong Lu, Chaoyang District, Beijing 100029, China; Institute Materia Medica, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing 100050, China
| | - Qiyan Wang
- School of Life Sciences, Beijing University of Chinese Medicine, Beijing 100029, China
| | - Xiaomin Yang
- School of Life Sciences, Beijing University of Chinese Medicine, Beijing 100029, China
| | - Yinglu Ren
- School of Traditional Chinese Medicine, Beijing University of Chinese Medicine, No. 11, Bei San Huan Dong Lu, Chaoyang District, Beijing 100029, China
| | - Shihong Jiao
- School of Life Sciences, Beijing University of Chinese Medicine, Beijing 100029, China
| | - Qingqing Zhu
- The Seventh Affiliated Hospital, Sun Yat-sen University, Shenzhen 518107, China
| | - Dongqing Guo
- School of Life Sciences, Beijing University of Chinese Medicine, Beijing 100029, China
| | - Kai Xia
- School of Traditional Chinese Medicine, Beijing University of Chinese Medicine, No. 11, Bei San Huan Dong Lu, Chaoyang District, Beijing 100029, China
| | - Yong Wang
- School of Life Sciences, Beijing University of Chinese Medicine, Beijing 100029, China
| | - Chun Li
- Modern Research Center for Traditional Chinese Medicine, Beijing University of Chinese Medicine, Beijing 100029, China.
| | - Wei Wang
- School of Traditional Chinese Medicine, Beijing University of Chinese Medicine, No. 11, Bei San Huan Dong Lu, Chaoyang District, Beijing 100029, China.
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Zuo C, Li X, Huang J, Chen D, Ji K, Yang Y, Xu T, Zhu D, Yan C, Gao P. Osteoglycin attenuates cardiac fibrosis by suppressing cardiac myofibroblast proliferation and migration through antagonizing lysophosphatidic acid 3/matrix metalloproteinase 2/epidermal growth factor receptor signalling. Cardiovasc Res 2019; 114:703-712. [PMID: 29415171 DOI: 10.1093/cvr/cvy035] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/06/2017] [Accepted: 02/03/2018] [Indexed: 01/02/2023] Open
Abstract
Aims Cardiac myofibroblasts (CMFs) play a crucial role in the progression of pathological fibrotic cardiac remodelling. The expression of osteoglycin (OGN) is increased in diseased hearts; however, the role of OGN in pathological cardiac remodelling is not understood. Here, we sought to determine the effect of OGN on cardiac interstitial fibrosis and investigate the molecular mechanisms of OGN in CMF activation and matrix production. Methods and results We found that OGN expression was significantly upregulated in mouse hearts in response to chronic 14-day angiotensin II (Ang II) infusion. Mice lacking OGN (OGN-/-) exhibited enhanced cardiac interstitial fibrosis and significantly more severe cardiac dysfunction following Ang II infusion compared to wild-type mice. OGN deficiency did not alter blood pressure, nor had effect on transforming growth factor-beta signalling activation, but presented with increased proliferative activity in hearts. In vitro studies with isolated CMFs revealed that OGN deficiency significantly increased proliferation and migration and enhanced the transactivation of epidermal growth factor receptor (EGFR) signalling by Ang II. On the other hand, OGN overexpression in CMFs decreased their proliferation and migration via reducing EGFR activation. Overexpression of OGN also suppressed the shedding of membrane anchored EGFR ligand. Moreover, OGN was found to interact with a lysophosphatidic acid (LPA) receptor isoform 3 and thus to attenuate EGFR transactivation through blocking cell surface translocation of membrane type 1 matrix metalloproteinase (MT1-MMP) and subsequent pro-MMP-2 activation in a Ras homolog gene family, member A (RhoA)/Rho-associated, coiled-coil containing protein kinase (ROCK)-dependent manner. Conclusion These findings suggest that OGN negatively regulates cardiac fibrotic remodelling by attenuating CMF proliferation and migration through LPA3-mediated and Rho/ROCK-dependent inhibition of MT1-MMP translocation, MMP2 activation and EGFR transactivation.
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Affiliation(s)
- Caojian Zuo
- Department of Hypertension, Ruijin Hospital and Shanghai Institute of Hypertension, Shanghai JiaoTong University School of Medicine, Shanghai 200025, China
| | - Xiaodong Li
- Department of Hypertension, Ruijin Hospital and Shanghai Institute of Hypertension, Shanghai JiaoTong University School of Medicine, Shanghai 200025, China
| | - Jun Huang
- Department of Hypertension, Ruijin Hospital and Shanghai Institute of Hypertension, Shanghai JiaoTong University School of Medicine, Shanghai 200025, China
| | - Dongrui Chen
- Department of Hypertension, Ruijin Hospital and Shanghai Institute of Hypertension, Shanghai JiaoTong University School of Medicine, Shanghai 200025, China
| | - Kaida Ji
- Department of Hypertension, Ruijin Hospital and Shanghai Institute of Hypertension, Shanghai JiaoTong University School of Medicine, Shanghai 200025, China
| | - Yan Yang
- Department of Hypertension, Ruijin Hospital and Shanghai Institute of Hypertension, Shanghai JiaoTong University School of Medicine, Shanghai 200025, China
| | - Tingyan Xu
- Department of Hypertension, Ruijin Hospital and Shanghai Institute of Hypertension, Shanghai JiaoTong University School of Medicine, Shanghai 200025, China
| | - Dingliang Zhu
- Department of Hypertension, Ruijin Hospital and Shanghai Institute of Hypertension, Shanghai JiaoTong University School of Medicine, Shanghai 200025, China
| | - Chen Yan
- Department of Medicine, Aab Cardiovascular Research Institute, University of Rochester School of Medicine and Dentistry, NY 710065, USA
| | - Pingjin Gao
- Department of Hypertension, Ruijin Hospital and Shanghai Institute of Hypertension, Shanghai JiaoTong University School of Medicine, Shanghai 200025, China
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Heras-Bautista CO, Mikhael N, Lam J, Shinde V, Katsen-Globa A, Dieluweit S, Molcanyi M, Uvarov V, Jütten P, Sahito RG, Mederos-Henry F, Piechot A, Brockmeier K, Hescheler J, Sachinidis A, Pfannkuche K. Cardiomyocytes facing fibrotic conditions re-express extracellular matrix transcripts. Acta Biomater 2019; 89:180-192. [PMID: 30862552 DOI: 10.1016/j.actbio.2019.03.017] [Citation(s) in RCA: 39] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2018] [Revised: 03/06/2019] [Accepted: 03/07/2019] [Indexed: 01/14/2023]
Abstract
Pathophysiological conditions, such as myocardial infarction and mechanical overload affect the mammalian heart integrity, leading to a stiffened fibrotic tissue. With respect to the pathophysiology of cardiac fibrosis but also in the limelight of upcoming approaches of cardiac cell therapy it is of interest to decipher the interaction of cardiomyocytes with fibrotic matrix. Therefore, we designed a hydrogel-based model to engineer fibrotic tissue in vitro as an approach to predict the behavior of cardiomyocytes facing increased matrix rigidity. Here, we generated pure induced pluripotent stem cell-derived cardiomyocytes and cultured them on engineered polyacrylamide hydrogels matching the elasticities of healthy as well as fibrotic cardiac tissue. Only in cardiomyocytes cultured on matrices with fibrotic-like elasticity, transcriptional profiling revealed a substantial up-regulation of a whole panel of cardiac fibrosis-associated transcripts, including collagen I and III, decorin, lumican, and periostin. In addition, matrix metalloproteinases and their inhibitors, known to be essential in cardiac remodeling, were found to be elevated as well as insulin-like growth factor 2. Control experiments with primary cardiac fibroblasts were analyzed and did not show comparable behavior. In conclusion, we do not only present a snapshot on the transcriptomic fingerprint alterations in cardiomyocytes under pathological conditions but also provide a new reproducible approach to study the effects of fibrotic environments to various cell types. STATEMENT OF SIGNIFICANCE: The ageing population in many western countries is faced with an increasing burden of ageing-related diseases such as heart failure which is associated with cardiac fibrosis. A deeper understanding of the interaction of organotypic cells with altered extracellular matrix mechanical properties is of pivotal importance to understand the underlying mechanisms. Here, we present a strategy to combine hydrogel matrices with induced pluripotent stem cell derived cardiomyocytes to study the effect of matrix stiffening on these cells. Our findings suggest an active role of matrix stiffening on cardiomyocyte function and heart failure progression.
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Li H, Mattson JM, Zhang Y. Integrating structural heterogeneity, fiber orientation, and recruitment in multiscale ECM mechanics. J Mech Behav Biomed Mater 2019; 92:1-10. [PMID: 30654215 PMCID: PMC6387859 DOI: 10.1016/j.jmbbm.2018.12.023] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2018] [Revised: 11/26/2018] [Accepted: 12/18/2018] [Indexed: 01/06/2023]
Abstract
Extracellular matrix (ECM) plays critical roles in establishing tissue structure-function relationships and controlling cell fate. However, the mechanisms by which ECM mechanics influence cell and tissue behavior remain to be elucidated since the events associated with this process span length scales from the tissue to molecular level. Entirely new methods are needed in order to better understand the multiscale mechanics of ECM. In this study, a multiscale experimental approach was established by integrating Optical Magnetic Twisting Cytometry (OMTC) with a biaxial tensile tester to study the microscopic (local) ECM mechanical properties under controlled tissue-level (global) loading. Adventitial layer of porcine thoracic artery was used as a collagen-based ECM. Multiphoton microscopy imaging was performed to capture the changes in ECM fiber structure during biaxial deformation. As visualized from multiphoton microscopy images, biaxial stretch induces gradual fiber straightening and the fiber families become evident at higher stretch levels. The OMTC measurements show that the local apparent storage and loss modulus increases with the global biaxial stretch, however there exists a complex interplay among local ECM mechanical properties, ECM structural heterogeneity, and fiber distribution and engagement. The phase lag does not change significantly with global biaxial stretch. Our results also show a much faster increase in global tissue tangent modulus compared to the local apparent complex modulus with biaxial stretch, indicating the scale dependency of ECM mechanics.
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Affiliation(s)
- Haiyue Li
- Department of Mechanical Engineering, Boston University, Boston, MA 02215, USA
| | - Jeffrey M Mattson
- Department of Mechanical Engineering, Boston University, Boston, MA 02215, USA
| | - Yanhang Zhang
- Department of Mechanical Engineering, Boston University, Boston, MA 02215, USA; Department of Biomedical Engineering, Boston University, Boston, MA 02215, USA.
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44
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Rodrigues PG, Miranda-Silva D, Costa SM, Barros C, Hamdani N, Moura C, Mendes MJ, Sousa-Mendes C, Trindade F, Fontoura D, Vitorino R, Linke WA, Leite-Moreira AF, Falcão-Pires I. Early myocardial changes induced by doxorubicin in the nonfailing dilated ventricle. Am J Physiol Heart Circ Physiol 2019; 316:H459-H475. [DOI: 10.1152/ajpheart.00401.2018] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Several studies have demonstrated that administration of doxorubicin (DOXO) results in cardiotoxicity, which eventually progresses to dilated cardiomyopathy. The present work aimed to evaluate the early myocardial changes of DOXO-induced cardiotoxicity. Male New Zealand White rabbits were injected intravenously with DOXO twice weekly for 8 wk [DOXO-induced heart failure (DOXO-HF)] or with an equivolumetric dose of saline (control). Echocardiographic evaluation was performed, and myocardial samples were collected to evaluate myocardial cellular and molecular modifications. The DOXO-HF group presented cardiac hypertrophy and higher left ventricular cavity diameters, showing a dilated phenotype but preserved ejection fraction. Concerning cardiomyocyte function, the DOXO-HF group presented a trend toward increased active tension without significant differences in passive tension. The myocardial GSSG-to-GSH ratio and interstitial fibrosis were increased and Bax-to- Bcl-2 ratio presented a trend toward an increase, suggesting the activation of apoptosis signaling pathways. The macromolecule titin shifted toward the more compliant isoform (N2BA), whereas the stiffer one (N2B) was shown to be hypophosphorylated. Differential protein analysis from the aggregate-enriched fraction through gel liquid chromatography-tandem mass spectrometry revealed an increase in the histidine-rich glycoprotein fragment in DOXO-HF animals. This work describes novel and early myocardial effects of DOXO-induced cardiotoxicity. Thus, tracking these changes appears to be of extreme relevance for the early detection of cardiac damage (as soon as ventricular dilation becomes evident) before irreversible cardiac function deterioration occurs (reduced ejection fraction). Moreover, it allows for the adjustment of the therapeutic approach and thus the prevention of cardiomyopathy progression. NEW & NOTEWORTHY Identification of early myocardial effects of doxorubicin in the heart is essential to hinder the development of cardiac complications and adjust the therapeutic approach. This study describes doxorubicin-induced cellular and molecular modifications before the onset of dilated cardiomyopathy. Myocardial samples from doxorubicin-treated rabbits showed a tendency for higher cardiomyocyte active tension, titin isoform shift from N2B to N2BA, hypophosphorylation of N2B, increased apoptotic genes, left ventricular interstitial fibrosis, and increased aggregation of histidine-rich glycoprotein.
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Affiliation(s)
- Patricia G. Rodrigues
- Department of Surgery and Physiology, Faculty of Medicine, Unidade de Investigação Cardiovascular, Universidade do Porto, Porto, Portugal
| | - Daniela Miranda-Silva
- Department of Surgery and Physiology, Faculty of Medicine, Unidade de Investigação Cardiovascular, Universidade do Porto, Porto, Portugal
| | - Sofia M. Costa
- Department of Surgery and Physiology, Faculty of Medicine, Unidade de Investigação Cardiovascular, Universidade do Porto, Porto, Portugal
| | - Carla Barros
- Department of Surgery and Physiology, Faculty of Medicine, Unidade de Investigação Cardiovascular, Universidade do Porto, Porto, Portugal
| | - Nazha Hamdani
- Department of Systems Physiology, Ruhr University, Bochum, Germany
| | - Cláudia Moura
- Department of Surgery and Physiology, Faculty of Medicine, Unidade de Investigação Cardiovascular, Universidade do Porto, Porto, Portugal
| | - Maria J. Mendes
- Department of Surgery and Physiology, Faculty of Medicine, Unidade de Investigação Cardiovascular, Universidade do Porto, Porto, Portugal
| | - Cláudia Sousa-Mendes
- Department of Surgery and Physiology, Faculty of Medicine, Unidade de Investigação Cardiovascular, Universidade do Porto, Porto, Portugal
| | - Fábio Trindade
- Department of Surgery and Physiology, Faculty of Medicine, Unidade de Investigação Cardiovascular, Universidade do Porto, Porto, Portugal
- Department of Medical Sciences, Institute of Biomedicine, University of Aveiro, Aveiro, Portugal
| | - Dulce Fontoura
- Department of Surgery and Physiology, Faculty of Medicine, Unidade de Investigação Cardiovascular, Universidade do Porto, Porto, Portugal
| | - Rui Vitorino
- Department of Surgery and Physiology, Faculty of Medicine, Unidade de Investigação Cardiovascular, Universidade do Porto, Porto, Portugal
- Department of Medical Sciences, Institute of Biomedicine, University of Aveiro, Aveiro, Portugal
| | - Wolfgang A. Linke
- Institute of Physiology II, University of Muenster, Muenster, Germany
| | - Adelino F. Leite-Moreira
- Department of Surgery and Physiology, Faculty of Medicine, Unidade de Investigação Cardiovascular, Universidade do Porto, Porto, Portugal
- Department of Cardiothoracic Surgery, São João Hospital Centre, Porto, Portugal
| | - Inês Falcão-Pires
- Department of Surgery and Physiology, Faculty of Medicine, Unidade de Investigação Cardiovascular, Universidade do Porto, Porto, Portugal
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45
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Chen X, Su J, Feng J, Cheng L, Li Q, Qiu C, Zheng Q. TRIM72 contributes to cardiac fibrosis via regulating STAT3/Notch-1 signaling. J Cell Physiol 2019; 234:17749-17756. [PMID: 30820965 DOI: 10.1002/jcp.28400] [Citation(s) in RCA: 30] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2018] [Revised: 01/31/2019] [Accepted: 02/01/2019] [Indexed: 12/19/2022]
Abstract
Cardiac fibrosis is a pathophysiological process characterized by excessive deposition of extracellular matrix. We developed a cardiac hypertrophy model using transverse aortic constriction (TAC) to uncover mechanisms relevant to excessive deposition of extracellular matrix in mouse myocardial cells. TAC caused upregulation of Tripartite motif protein 72 (TRIM72), a tripartite motif-containing protein that is critical for proliferation and migration. Importantly, in vivo silencing of TRIM72 reversed TAC-induced cardiac fibrosis, as indicated by markedly increased left ventricular systolic pressure and decreased left ventricular end-diastolic pressure. TRIM72 knockdown also attenuated deposition of fibrosis marker collagen type I and α-smooth muscle actin (α-SMA). In an in vitro study, TRIM72 was similarly upregulated in cardiac fibroblasts. Knockdown of TRIM72 markedly suppressed collagen type I and α-SMA expression and significantly decreased the proliferation and migration of cardiac fibroblasts. However, TRIM72 overexpression markedly increased collagen type I and α-SMA expression and increased the proliferation and migration of cardiac fibroblasts. Further study demonstrated that TRIM72 increased phosphorylated STAT3 in cardiac fibroblasts. TRIM72 knockdown in cardiac fibroblasts resulted in increased expression of Notch ligand Jagged-1 and its downstream gene and Notch-1 intracellular domain. Inhibition of Notch-1 abrogated sh-TRIM72-induced cardiac fibrosis. Together, our results support a novel role for TRIM72 in maintaining fibroblast-to-myofibroblast transition and suppressing fibroblast growth by regulating the STAT3/Notch-1 pathway.
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Affiliation(s)
- Xu Chen
- Department of Cardiovascular Surgery, Shenzhen People's Hospital, Second Clinical Medical College, Jinan University, Shenzhen, China.,Department of Cardiovascular Surgery, Xijing Hospital, Fourth Military Medical University, Xi'an, China
| | - Jie Su
- Department of Cardiovascular Surgery, Xijing Hospital, Fourth Military Medical University, Xi'an, China
| | - Jianyu Feng
- Department of Cardiovascular Surgery, Xijing Hospital, Fourth Military Medical University, Xi'an, China
| | - Liang Cheng
- Department of Cardiovascular Surgery, Xijing Hospital, Fourth Military Medical University, Xi'an, China
| | - Qing Li
- Department of Cardiovascular Surgery, Shenzhen People's Hospital, Second Clinical Medical College, Jinan University, Shenzhen, China
| | - Chen Qiu
- Department of Respiratory and Critical Medicine, Shenzhen People's Hospital, Second Clinical Medical College, Jinan University, Shenzhen, China
| | - Qijun Zheng
- Department of Cardiovascular Surgery, Shenzhen People's Hospital, Second Clinical Medical College, Jinan University, Shenzhen, China.,Department of Cardiovascular Surgery, Xijing Hospital, Fourth Military Medical University, Xi'an, China
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46
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Fatemifar F, Feldman MD, Oglesby M, Han HC. Comparison of Biomechanical Properties and Microstructure of Trabeculae Carneae, Papillary Muscles, and Myocardium in the Human Heart. J Biomech Eng 2019; 141:021007. [PMID: 30418486 PMCID: PMC6298537 DOI: 10.1115/1.4041966] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2018] [Revised: 10/28/2018] [Indexed: 12/13/2022]
Abstract
Trabeculae carneae account for a significant portion of human ventricular mass, despite being considered embryologic remnants. Recent studies have found trabeculae hypertrophy and fibrosis in hypertrophied left ventricles with various pathological conditions. The objective of this study was to investigate the passive mechanical properties and microstructural characteristics of trabeculae carneae and papillary muscles compared to the myocardium in human hearts. Uniaxial tensile tests were performed on samples of trabeculae carneae and myocardium strips, while biaxial tensile tests were performed on samples of papillary muscles and myocardium sheets. The experimental data were fitted with a Fung-type strain energy function and material coefficients were determined. The secant moduli at given diastolic stress and strain levels were determined and compared among the tissues. Following the mechanical testing, histology examinations were performed to investigate the microstructural characteristics of the tissues. Our results demonstrated that the trabeculae carneae were significantly stiffer (Secant modulus SM2 = 80.06 ± 10.04 KPa) and had higher collagen content (16.10 ± 3.80%) than the myocardium (SM2 = 55.14 ± 20.49 KPa, collagen content = 10.06 ± 4.15%) in the left ventricle. The results of this study improve our understanding of the contribution of trabeculae carneae to left ventricular compliance and will be useful for building accurate computational models of the human heart.
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Affiliation(s)
- Fatemeh Fatemifar
- Department of Mechanical Engineering,
University of Texas at San Antonio,
San Antonio, TX 78249
| | - Marc D. Feldman
- Department of Medicine,
University of Texas Health Science
Center at San Antonio,
San Antonio, TX 78229
| | - Meagan Oglesby
- Department of Medicine,
University of Texas Health Science
Center at San Antonio,
San Antonio, TX 78229
| | - Hai-Chao Han
- Department of Mechanical Engineering,
University of Texas at San Antonio,
San Antonio, TX 78249
e-mail:
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47
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MacQueen LA, Sheehy SP, Chantre CO, Zimmerman JF, Pasqualini FS, Liu X, Goss JA, Campbell PH, Gonzalez GM, Park SJ, Capulli AK, Ferrier JP, Kosar TF, Mahadevan L, Pu WT, Parker KK. A tissue-engineered scale model of the heart ventricle. Nat Biomed Eng 2018; 2:930-941. [PMID: 31015723 PMCID: PMC6774355 DOI: 10.1038/s41551-018-0271-5] [Citation(s) in RCA: 132] [Impact Index Per Article: 22.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2017] [Accepted: 06/20/2018] [Indexed: 02/08/2023]
Abstract
Laboratory studies of the heart use cell and tissue cultures to dissect heart function yet rely on animal models to measure pressure and volume dynamics. Here, we report tissue-engineered scale models of the human left ventricle, made of nanofibrous scaffolds that promote native-like anisotropic myocardial tissue genesis and chamber-level contractile function. Incorporating neonatal rat ventricular myocytes or cardiomyocytes derived from human induced pluripotent stem cells, the tissue-engineered ventricles have a diastolic chamber volume of ~500 µl (comparable to that of the native rat ventricle and approximately 1/250 the size of the human ventricle), and ejection fractions and contractile work 50-250 times smaller and 104-108 times smaller than the corresponding values for rodent and human ventricles, respectively. We also measured tissue coverage and alignment, calcium-transient propagation and pressure-volume loops in the presence or absence of test compounds. Moreover, we describe an instrumented bioreactor with ventricular-assist capabilities, and provide a proof-of-concept disease model of structural arrhythmia. The model ventricles can be evaluated with the same assays used in animal models and in clinical settings.
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Affiliation(s)
- Luke A MacQueen
- Wyss Institute for Biologically Inspired Engineering, Harvard University, Boston, MA, USA
- John A. Paulson School of Engineering and Applied Sciences, Harvard University, Cambridge, MA, USA
| | - Sean P Sheehy
- Wyss Institute for Biologically Inspired Engineering, Harvard University, Boston, MA, USA
- John A. Paulson School of Engineering and Applied Sciences, Harvard University, Cambridge, MA, USA
| | - Christophe O Chantre
- Wyss Institute for Biologically Inspired Engineering, Harvard University, Boston, MA, USA
- John A. Paulson School of Engineering and Applied Sciences, Harvard University, Cambridge, MA, USA
| | - John F Zimmerman
- Wyss Institute for Biologically Inspired Engineering, Harvard University, Boston, MA, USA
- John A. Paulson School of Engineering and Applied Sciences, Harvard University, Cambridge, MA, USA
| | - Francesco S Pasqualini
- Wyss Institute for Biologically Inspired Engineering, Harvard University, Boston, MA, USA
- John A. Paulson School of Engineering and Applied Sciences, Harvard University, Cambridge, MA, USA
| | - Xujie Liu
- Department of Cardiology, Boston Children's Hospital, Boston, MA, USA
| | - Josue A Goss
- Wyss Institute for Biologically Inspired Engineering, Harvard University, Boston, MA, USA
- John A. Paulson School of Engineering and Applied Sciences, Harvard University, Cambridge, MA, USA
| | - Patrick H Campbell
- Wyss Institute for Biologically Inspired Engineering, Harvard University, Boston, MA, USA
- John A. Paulson School of Engineering and Applied Sciences, Harvard University, Cambridge, MA, USA
| | - Grant M Gonzalez
- Wyss Institute for Biologically Inspired Engineering, Harvard University, Boston, MA, USA
- John A. Paulson School of Engineering and Applied Sciences, Harvard University, Cambridge, MA, USA
| | - Sung-Jin Park
- Wyss Institute for Biologically Inspired Engineering, Harvard University, Boston, MA, USA
- John A. Paulson School of Engineering and Applied Sciences, Harvard University, Cambridge, MA, USA
| | - Andrew K Capulli
- Wyss Institute for Biologically Inspired Engineering, Harvard University, Boston, MA, USA
- John A. Paulson School of Engineering and Applied Sciences, Harvard University, Cambridge, MA, USA
| | - John P Ferrier
- Wyss Institute for Biologically Inspired Engineering, Harvard University, Boston, MA, USA
- John A. Paulson School of Engineering and Applied Sciences, Harvard University, Cambridge, MA, USA
| | - T Fettah Kosar
- Wyss Institute for Biologically Inspired Engineering, Harvard University, Boston, MA, USA
| | - L Mahadevan
- Wyss Institute for Biologically Inspired Engineering, Harvard University, Boston, MA, USA
- John A. Paulson School of Engineering and Applied Sciences, Harvard University, Cambridge, MA, USA
- Kavli Institute for Bionano Science and Technology, Harvard University, Cambridge, MA, USA
- Department of Organismic and Evolutionary Biology, Harvard University, Cambridge, MA, USA
- Department of Physics, Harvard University, Cambridge, MA, USA
| | - William T Pu
- Department of Cardiology, Boston Children's Hospital, Boston, MA, USA
- Harvard Stem Cell Institute, Harvard University, Cambridge, MA, USA
| | - Kevin Kit Parker
- Wyss Institute for Biologically Inspired Engineering, Harvard University, Boston, MA, USA.
- John A. Paulson School of Engineering and Applied Sciences, Harvard University, Cambridge, MA, USA.
- Harvard Stem Cell Institute, Harvard University, Cambridge, MA, USA.
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48
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Ham O, Jin W, Lei L, Huang HH, Tsuji K, Huang M, Roh J, Rosenzweig A, Lu HAJ. Pathological cardiac remodeling occurs early in CKD mice from unilateral urinary obstruction, and is attenuated by Enalapril. Sci Rep 2018; 8:16087. [PMID: 30382174 PMCID: PMC6208335 DOI: 10.1038/s41598-018-34216-x] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2018] [Accepted: 10/04/2018] [Indexed: 12/27/2022] Open
Abstract
Cardiovascular disease constitutes the leading cause of mortality in patients with chronic kidney disease (CKD) and end-stage renal disease. Despite increasing recognition of a close interplay between kidney dysfunction and cardiovascular disease, termed cardiorenal syndrome (CRS), the underlying mechanisms of CRS remain poorly understood. Here we report the development of pathological cardiac hypertrophy and fibrosis in early stage non-uremic CKD. Moderate kidney failure was induced three weeks after unilateral urinary obstruction (UUO) in mice. We observed pathological cardiac hypertrophy and increased fibrosis in UUO-induced CKD (UUO/CKD) animals. Further analysis indicated that this cardiac fibrosis was associated with increased expression of transforming growth factor β (TGF-β) along with significant upregulation of Smad 2/3 signaling in the heart. Moreover early treatment of UUO/CKD animals with an angiotensin-converting-enzyme inhibitor (ACE I), Enalapril, significantly attenuated cardiac fibrosis. Enalapril antagonized activation of the TGF-β signaling pathway in the UUO/CKD heart. In summary our study demonstrates the presence of pathological cardiac hypertrophy and fibrosis in mice early in UUO-induced CKD, in association with early activation of the TGF-β/Smad signaling pathway. We also demonstrate the beneficial effect of ACE I in alleviating this early fibrogenic process in the heart in UUO/CKD animals.
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Affiliation(s)
- Onju Ham
- Center for Systems Biology, Program in Membrane Biology, Division of Nephrology, Massachusetts General Hospital and Harvard Medical School, Boston, MA, 02114, USA
| | - William Jin
- College of Arts & Sciences, Washington University in St. Louis, St. Louis, MO, 63130, USA
| | - Lei Lei
- Center for Systems Biology, Program in Membrane Biology, Division of Nephrology, Massachusetts General Hospital and Harvard Medical School, Boston, MA, 02114, USA
- Department of Pharmacology, School of Basic Medical Sciences, Peking University, Beijing, China
| | - Hui Hui Huang
- Center for Systems Biology, Program in Membrane Biology, Division of Nephrology, Massachusetts General Hospital and Harvard Medical School, Boston, MA, 02114, USA
| | - Kenji Tsuji
- Center for Systems Biology, Program in Membrane Biology, Division of Nephrology, Massachusetts General Hospital and Harvard Medical School, Boston, MA, 02114, USA
| | - Ming Huang
- Center for Systems Biology, Program in Membrane Biology, Division of Nephrology, Massachusetts General Hospital and Harvard Medical School, Boston, MA, 02114, USA
- Department of Pharmacology, School of Basic Medical Sciences, Peking University, Beijing, China
| | - Jason Roh
- Corrigan Minehan Heart Center, Massachusetts General Hospital and Harvard Medical School, Boston, MA, 02114, USA
| | - Anthony Rosenzweig
- Corrigan Minehan Heart Center, Massachusetts General Hospital and Harvard Medical School, Boston, MA, 02114, USA
| | - Hua A Jenny Lu
- Center for Systems Biology, Program in Membrane Biology, Division of Nephrology, Massachusetts General Hospital and Harvard Medical School, Boston, MA, 02114, USA.
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49
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Simultaneous AFM Investigation of the Single Cardiomyocyte Electro-Chemo-Mechanics During Excitation-Contraction Coupling. Methods Mol Biol 2018. [PMID: 30374879 DOI: 10.1007/978-1-4939-8894-5_21] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register]
Abstract
The cardiac excitation-contraction coupling is the cellular process through which the heart absolves its blood pumping function, and it is directly affected when cardiac pathologies occur. Cardiomyocytes are the functional units in which this complex biomolecular process takes place: they can be represented as a two-stage electro-chemo and chemo-mechanical transducer, along which each stage can be probed and monitored via appropriate micro/nanotechnology-based tools. Atomic force microscopy (AFM), with its unique nanoresolved force sensitivity and versatile modes of extracting sample properties, can represent a key instrument to study time-dependent heart mechanics and topography at the single cell level. In this work, we show how the integrative possibilities of AFM allowed us to implement an in vitro system which can monitor cardiac electrophysiology, intracellular calcium dynamics, and single cell mechanics. We believe this single cell-sensitive and integrated system will unlock improved, fast, and reliable cardiac in vitro tests in the future.
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50
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Liu Y, Gao L, Zhao X, Guo S, Liu Y, Li R, Liang C, Li L, Dong J, Li L, Yang H. Saikosaponin A Protects From Pressure Overload-Induced Cardiac Fibrosis via Inhibiting Fibroblast Activation or Endothelial Cell EndMT. Int J Biol Sci 2018; 14:1923-1934. [PMID: 30443195 PMCID: PMC6231222 DOI: 10.7150/ijbs.27022] [Citation(s) in RCA: 32] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2018] [Accepted: 07/16/2018] [Indexed: 01/06/2023] Open
Abstract
Saikosaponin A (SSA) is a triterpenoid saponin with many pharmacological activities, including anti-inflammatory and antioxidant effects. The effect of SSA on cardiac remodeling and fibrosis, however, remains unclear. Aortic banding surgery was used to establish a mouse cardiac remodeling and fibrosis model. Mice were subjected to an intraperitoneal (i.p.) injection of SSA (5 mg/kg/d or 40 mg/kg/d) 2 weeks after surgery for 28 days. As a result, SSA had limited effect on cardiac hypertrophy but decreased cardiac fibrosis remarkably. Neonatal rat cardiomyocytes were isolated and cultured with SSA (1 and 30 μM). Both 1 and 30 μM SSA reduced atrial natriuretic peptide transcription induced by angiotensin II. Adult mouse cardiac fibroblasts were isolated and cultured with SSA (1, 3, 10 and 30 μM). Only 10 and 30 μM SSA ameliorated transforming growth factor β (TGFβ)-induced fibroblast activation and function. Mouse heart endothelial cells were isolated and stimulated with TGFβ and cocultured with SSA (1, 3, 10 and 30 μM). Only 1 and 3 μM SSA ameliorated TGFβ-induced endothelium-mesenchymal transition (EndMT). Consistently, only the 5 mg/kg/d treatment relieved pressure overload-induced EndMT in vivo. Furthermore, we found that high dosages of SSA (10 and 30 μM) inhibited the TGFβ/smad pathway in fibroblasts, while low dosages of SSA (1 and 3 μM) inhibited the Wnt/β-catenin pathway in endothelial cells. The Smad pathway activator SRI-011381 eliminated SSA (30 μM)-induced protective effects on fibroblasts. The Wnt pathway activator WAY-262611 eliminated SSA (1 μM)-induced protective effects on endothelial cells. In summary, this study indicates the potential application of SSA in the treatment of myocardial fibrosis in cardiac fibrosis, with different target effects associated with different dosages.
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Affiliation(s)
- Yuan Liu
- Department of Cardiology, The First Affiliated Hospital of Zhengzhou University, No. 1 Jianshe East Road, Zhengzhou, China
| | - Lu Gao
- Department of Cardiology, The First Affiliated Hospital of Zhengzhou University, No. 1 Jianshe East Road, Zhengzhou, China
| | - Xiaoyan Zhao
- Department of Cardiology, The First Affiliated Hospital of Zhengzhou University, No. 1 Jianshe East Road, Zhengzhou, China
| | - Sen Guo
- Department of Cardiology, The First Affiliated Hospital of Zhengzhou University, No. 1 Jianshe East Road, Zhengzhou, China
| | - Yuzhou Liu
- Department of Cardiology, The First Affiliated Hospital of Zhengzhou University, No. 1 Jianshe East Road, Zhengzhou, China
| | - Ran Li
- Department of Cardiology, The First Affiliated Hospital of Zhengzhou University, No. 1 Jianshe East Road, Zhengzhou, China
| | - Cui Liang
- Department of Cardiology, The First Affiliated Hospital of Zhengzhou University, No. 1 Jianshe East Road, Zhengzhou, China
| | - Ling Li
- Department of Cardiology, The First Affiliated Hospital of Zhengzhou University, No. 1 Jianshe East Road, Zhengzhou, China
| | - Jianzeng Dong
- Department of Cardiology, The First Affiliated Hospital of Zhengzhou University, No. 1 Jianshe East Road, Zhengzhou, China
| | - Lina Li
- Department of Anesthesiology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
| | - Haibo Yang
- Department of Cardiology, The First Affiliated Hospital of Zhengzhou University, No. 1 Jianshe East Road, Zhengzhou, China
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