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Tabatabaei FS, Shafeghat M, Azimi A, Akrami A, Rezaei N. Endosomal Toll-Like Receptors intermediate negative impacts of viral diseases, autoimmune diseases, and inflammatory immune responses on the cardiovascular system. Expert Rev Clin Immunol 2024:1-13. [PMID: 39137281 DOI: 10.1080/1744666x.2024.2392815] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2024] [Revised: 07/17/2024] [Accepted: 08/12/2024] [Indexed: 08/15/2024]
Abstract
INTRODUCTION Cardiovascular disease (CVD) is the leading cause of morbidity globally, with chronic inflammation as a key modifiable risk factor. Toll-like receptors (TLRs), pivotal components of the innate immune system, including TLR-3, -7, -8, and -9 within endosomes, trigger intracellular cascades, leading to inflammatory cytokine production by various cell types, contributing to systemic inflammation and atherosclerosis. Recent research highlights the role of endosomal TLRs in recognizing self-derived nucleic acids during sterile inflammation, implicated in autoimmune conditions like myocarditis. AREAS COVERED This review explores the impact of endosomal TLRs on viral infections, autoimmunity, and inflammatory responses, shedding light on their intricate involvement in cardiovascular health and disease by examining literature on TLR-mediated mechanisms and their roles in CVD pathophysiology. EXPERT OPINION Removal of endosomal TLRs mitigates myocardial damage and immune reactions, applicable in myocardial injury. Targeting TLRs with agonists enhances innate immunity against fatal viruses, lowering viral loads and mortality. Prophylactic TLR agonist administration upregulates TLRs, protecting against fatal viruses and improving survival. TLRs play a complex role in CVDs like atherosclerosis and myocarditis, with therapeutic potential in modulating TLR reactions for cardiovascular health.
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Affiliation(s)
- Fatemeh Sadat Tabatabaei
- School of Medicine, Tehran University of Medical Sciences, Tehran, Iran
- Network of Immunity in Infection, Malignancy and Autoimmunity (NIIMA), Universal Scientific Education and Research Network (USERN), Tehran, Iran
| | - Melika Shafeghat
- Network of Immunity in Infection, Malignancy and Autoimmunity (NIIMA), Universal Scientific Education and Research Network (USERN), Tehran, Iran
- Feinberg School of Medicine, Northwestern University, Chicago, IL, USA
- Research Center for Immunodeficiencies (RCID), Children's Medical Center, Tehran University of Medical Sciences, Tehran, Iran
| | - Amirali Azimi
- School of Medicine, Tehran University of Medical Sciences, Tehran, Iran
| | - Ashley Akrami
- Chicago College of Osteopathic Medicine, Midwestern University, Downers Grove, IL, USA
| | - Nima Rezaei
- Network of Immunity in Infection, Malignancy and Autoimmunity (NIIMA), Universal Scientific Education and Research Network (USERN), Tehran, Iran
- Research Center for Immunodeficiencies (RCID), Children's Medical Center, Tehran University of Medical Sciences, Tehran, Iran
- Department of Immunology, School of Medicine, Tehran University of Medical Sciences (TUMS), Tehran, Iran
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Amuso VM, Haas MR, Cooper PO, Chatterjee R, Hafiz S, Salameh S, Gohel C, Mazumder MF, Josephson V, Khorsandi K, Horvath A, Rahnavard A, Shook BA. Deep skin fibroblast-mediated macrophage recruitment supports acute wound healing. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2024:2024.08.09.607357. [PMID: 39149286 PMCID: PMC11326280 DOI: 10.1101/2024.08.09.607357] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Indexed: 08/17/2024]
Abstract
Epithelial and immune cells have long been appreciated for their contribution to the early immune response after injury; however, much less is known about the role of mesenchymal cells. Using single nuclei RNA-sequencing, we defined changes in gene expression associated with inflammation at 1-day post-wounding (dpw) in mouse skin. Compared to keratinocytes and myeloid cells, we detected enriched expression of pro-inflammatory genes in fibroblasts associated with deeper layers of the skin. In particular, SCA1+ fibroblasts were enriched for numerous chemokines, including CCL2, CCL7, and IL33 compared to SCA1- fibroblasts. Genetic deletion of Ccl2 in fibroblasts resulted in fewer wound bed macrophages and monocytes during injury-induced inflammation with reduced revascularization and re-epithelialization during the proliferation phase of healing. These findings highlight the important contribution of deep skin fibroblast-derived factors to injury-induced inflammation and the impact of immune cell dysregulation on subsequent tissue repair.
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Affiliation(s)
- Veronica M. Amuso
- Department of Biochemistry and Molecular Medicine, School of Medicine and Health Sciences, The George Washington University, Washington, DC 20052, USA
| | - MaryEllen R. Haas
- Department of Biochemistry and Molecular Medicine, School of Medicine and Health Sciences, The George Washington University, Washington, DC 20052, USA
| | - Paula O. Cooper
- Department of Biochemistry and Molecular Medicine, School of Medicine and Health Sciences, The George Washington University, Washington, DC 20052, USA
| | - Ranojoy Chatterjee
- Computational Biology Institute, Department of Biostatistics and Bioinformatics, Milken Institute School of Public Health, The George Washington University, Washington, DC 20052, USA
| | - Sana Hafiz
- Department of Biochemistry and Molecular Medicine, School of Medicine and Health Sciences, The George Washington University, Washington, DC 20052, USA
| | - Shatha Salameh
- Department of Biochemistry and Molecular Medicine, School of Medicine and Health Sciences, The George Washington University, Washington, DC 20052, USA
| | - Chiraag Gohel
- Computational Biology Institute, Department of Biostatistics and Bioinformatics, Milken Institute School of Public Health, The George Washington University, Washington, DC 20052, USA
| | - Miguel F. Mazumder
- Department of Biochemistry and Molecular Medicine, School of Medicine and Health Sciences, The George Washington University, Washington, DC 20052, USA
| | - Violet Josephson
- Department of Biochemistry and Molecular Medicine, School of Medicine and Health Sciences, The George Washington University, Washington, DC 20052, USA
| | - Khatereh Khorsandi
- Department of Biochemistry and Molecular Medicine, School of Medicine and Health Sciences, The George Washington University, Washington, DC 20052, USA
| | - Anelia Horvath
- Department of Biochemistry and Molecular Medicine, School of Medicine and Health Sciences, The George Washington University, Washington, DC 20052, USA
| | - Ali Rahnavard
- Computational Biology Institute, Department of Biostatistics and Bioinformatics, Milken Institute School of Public Health, The George Washington University, Washington, DC 20052, USA
| | - Brett A. Shook
- Department of Biochemistry and Molecular Medicine, School of Medicine and Health Sciences, The George Washington University, Washington, DC 20052, USA
- Department of Dermatology, School of Medicine and Health Sciences, The George Washington University, Washington, DC 20052, USA
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Lu S, Jolly AJ, Dubner AM, Strand KA, Mutryn MF, Hinthorn T, Noble T, Nemenoff RA, Moulton KS, Majesky MW, Weiser-Evans MC. KLF4 in smooth muscle cell-derived progenitor cells is essential for angiotensin II-induced cardiac inflammation and fibrosis. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2024:2024.06.04.597485. [PMID: 38895472 PMCID: PMC11185732 DOI: 10.1101/2024.06.04.597485] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/21/2024]
Abstract
Cardiac fibrosis is defined by the excessive accumulation of extracellular matrix (ECM) material resulting in cardiac tissue scarring and dysfunction. While it is commonly accepted that myofibroblasts are the major contributors to ECM deposition in cardiac fibrosis, their origin remains debated. By combining lineage tracing and RNA sequencing, our group made the paradigm-shifting discovery that a subpopulation of resident vascular stem cells residing within the aortic, carotid artery, and femoral aartery adventitia (termed AdvSca1-SM cells) originate from mature vascular smooth muscle cells (SMCs) through an in situ reprogramming process. SMC-to-AdvSca1-SM reprogramming and AdvSca1-SM cell maintenance is dependent on induction and activity of the transcription factor, KLF4. However, the molecular mechanism whereby KLF4 regulates AdvSca1-SM phenotype remains unclear. In the current study, leveraging a highly specific AdvSca1-SM cell reporter system, single-cell RNA-sequencing (scRNA-seq), and spatial transcriptomic approaches, we demonstrate the profibrotic differentiation trajectory of coronary artery-associated AdvSca1-SM cells in the setting of Angiotensin II (AngII)-induced cardiac fibrosis. Differentiation was characterized by loss of stemness-related genes, including Klf4 , but gain of expression of a profibrotic phenotype. Importantly, these changes were recapitulated in human cardiac hypertrophic tissue, supporting the translational significance of profibrotic transition of AdvSca1-SM-like cells in human cardiomyopathy. Surprisingly and paradoxically, AdvSca1-SM-specific genetic knockout of Klf4 prior to AngII treatment protected against cardiac inflammation and fibrosis, indicating that Klf4 is essential for the profibrotic response of AdvSca1-SM cells. Overall, our data reveal the contribution of AdvSca1-SM cells to myofibroblasts in the setting of AngII-induced cardiac fibrosis. KLF4 not only maintains the stemness of AdvSca1-SM cells, but also orchestrates their response to profibrotic stimuli, and may serve as a therapeutic target in cardiac fibrosis.
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Schmidt KE, Höving AL, Kiani Zahrani S, Trevlopoulou K, Kaltschmidt B, Knabbe C, Kaltschmidt C. Serum-Induced Proliferation of Human Cardiac Stem Cells Is Modulated via TGFβRI/II and SMAD2/3. Int J Mol Sci 2024; 25:959. [PMID: 38256034 PMCID: PMC10815425 DOI: 10.3390/ijms25020959] [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: 11/17/2023] [Revised: 12/22/2023] [Accepted: 01/09/2024] [Indexed: 01/24/2024] Open
Abstract
The ageing phenotype is strongly driven by the exhaustion of adult stem cells (ASCs) and the accumulation of senescent cells. Cardiovascular diseases (CVDs) and heart failure (HF) are strongly linked to the ageing phenotype and are the leading cause of death. As the human heart is considered as an organ with low regenerative capacity, treatments targeting the rejuvenation of human cardiac stem cells (hCSCs) are of great interest. In this study, the beneficial effects of human blood serum on proliferation and senescence of hCSCs have been investigated at the molecular level. We show the induction of a proliferation-related gene expression response by human blood serum at the mRNA level. The concurrent differential expression of the TGFβ target and inhibitor genes indicates the participation of TGFβ signalling in this context. Surprisingly, the application of TGFβ1 as well as the inhibition of TGFβ type I and type II receptor (TGFβRI/II) signalling strongly increased the proliferation of hCSCs. Likewise, both human blood serum and TGFβ1 reduced the senescence in hCSCs. The protective effect of serum on senescence in hCSCs was enhanced by simultaneous TGFβRI/II inhibition. These results strongly indicate a dual role of TGFβ signalling in terms of the serum-mediated effects on hCSCs. Further analysis via RNA sequencing (RNA-Seq) revealed the participation of Ras-inactivating genes wherefore a prevention of hyperproliferation upon serum-treatment in hCSCs via TGFβ signalling and Ras-induced senescence is suggested. These insights may improve treatments of heart failure in the future.
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Affiliation(s)
- Kazuko E. Schmidt
- Department of Cell Biology, Faculty of Biology, University of Bielefeld, 33615 Bielefeld, Germany; (K.E.S.); (S.K.Z.); (K.T.); (B.K.); (C.K.)
- Institute for Laboratory and Transfusion Medicine, Heart and Diabetes Centre NRW, Ruhr-University Bochum, 32545 Bad Oeynhausen, Germany
- Medical Faculty OWL, University of Bielefeld, 33615 Bielefeld, Germany
| | - Anna L. Höving
- Department of Cell Biology, Faculty of Biology, University of Bielefeld, 33615 Bielefeld, Germany; (K.E.S.); (S.K.Z.); (K.T.); (B.K.); (C.K.)
- Institute for Laboratory and Transfusion Medicine, Heart and Diabetes Centre NRW, Ruhr-University Bochum, 32545 Bad Oeynhausen, Germany
- Medical Faculty OWL, University of Bielefeld, 33615 Bielefeld, Germany
| | - Sina Kiani Zahrani
- Department of Cell Biology, Faculty of Biology, University of Bielefeld, 33615 Bielefeld, Germany; (K.E.S.); (S.K.Z.); (K.T.); (B.K.); (C.K.)
| | - Katerina Trevlopoulou
- Department of Cell Biology, Faculty of Biology, University of Bielefeld, 33615 Bielefeld, Germany; (K.E.S.); (S.K.Z.); (K.T.); (B.K.); (C.K.)
| | - Barbara Kaltschmidt
- Department of Cell Biology, Faculty of Biology, University of Bielefeld, 33615 Bielefeld, Germany; (K.E.S.); (S.K.Z.); (K.T.); (B.K.); (C.K.)
- AG Molecular Neurobiology, Faculty of Biology, Bielefeld University, 33615 Bielefeld, Germany
| | - Cornelius Knabbe
- Institute for Laboratory and Transfusion Medicine, Heart and Diabetes Centre NRW, Ruhr-University Bochum, 32545 Bad Oeynhausen, Germany
- Medical Faculty OWL, University of Bielefeld, 33615 Bielefeld, Germany
| | - Christian Kaltschmidt
- Department of Cell Biology, Faculty of Biology, University of Bielefeld, 33615 Bielefeld, Germany; (K.E.S.); (S.K.Z.); (K.T.); (B.K.); (C.K.)
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Pappritz K, Puhl SL, Matz I, Brauer E, Shia YX, El-Shafeey M, Koch SE, Miteva K, Mucha C, Duda GN, Petersen A, Steffens S, Tschöpe C, Van Linthout S. Sex- and age-related differences in the inflammatory properties of cardiac fibroblasts: impact on the cardiosplenic axis and cardiac fibrosis. Front Cardiovasc Med 2023; 10:1117419. [PMID: 38054090 PMCID: PMC10694208 DOI: 10.3389/fcvm.2023.1117419] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2022] [Accepted: 10/20/2023] [Indexed: 12/07/2023] Open
Abstract
Background Age and sex are prominent risk factors for heart failure and determinants of structural and functional changes of the heart. Cardiac fibroblasts (cFB) are beyond their task as extracellular matrix-producing cells further recognized as inflammation-supporting cells. The present study aimed to evaluate the impact of sex and age on the inflammatory potential of cFB and its impact on the cardiosplenic axis and cardiac fibrosis. Materials Left ventricles (LV) of 3- and 12-months old male and female C57BL/6J mice were harvested for immunohistochemistry, immunofluorescence and cFB outgrowth culture and the spleen for flow cytometry. LV-derived cFB and respective supernatants were characterized. Results LV-derived cFB from 3-months old male mice exhibited a higher inflammatory capacity, as indicated by a higher gene expression of CC-chemokine ligand (CCL) 2, and CCL7 compared to cFB derived from 3-months old female mice. The resulting higher CCL2/chemokine C-X3-C motif ligand (Cx3CL1) and CCL7/Cx3CL1 protein ratio in cell culture supernatants of 3-months old male vs. female cFB was reflected by a higher migration of Ly6Chigh monocytes towards supernatant from 3-months old male vs. female cFB. In vivo a lower ratio of splenic pro-inflammatory Ly6Chigh to anti-inflammatory Ly6Clow monocytes was found in 3-months old male vs. female mice, suggesting a higher attraction of Ly6Chigh compared to Ly6Clow monocytes towards the heart in male vs. female mice. In agreement, the percentage of pro-inflammatory CD68+ CD206- macrophages was higher in the LV of male vs. female mice at this age, whereas the percentage of anti-inflammatory CD68+ CD206+ macrophages was higher in the LV of 3-months old female mice compared to age-matched male animals. In parallel, the percentage of splenic TGF-β+ cells was higher in both 3- and 12-months old female vs. male mice, as further reflected by the higher pro-fibrotic potential of female vs. male splenocytes at both ages. In addition, female mice displayed a higher total LV collagen content compared to age-matched male mice, whereby collagen content of female cFB was higher compared to male cFB at the age of 12-months. Conclusion Age- and sex-dependent differences in cardiac fibrosis and inflammation are related to age- and sex-dependent variations in the inflammatory properties of cardiac fibroblasts.
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Affiliation(s)
- Kathleen Pappritz
- Berlin Institute of Health at Charité—Universitätsmedizin Berlin, BIH Center for Regenerative Therapies (BCRT), Berlin, Germany
- Berlin-Brandenburg Center for Regenerative Therapies, Charité—Universitätsmedizin Berlin, Campus Virchow Klinikum (CVK), Berlin, Germany
- German Center for Cardiovascular Research (DZHK), Partner Site Berlin, Berlin, Germany
| | - Sarah-Lena Puhl
- Comprehensive Heart Failure Center, Universitätsklinikum Würzburg, Würzburg, Germany
- Institute for Cardiovascular Prevention (IPEK), Ludwig-Maximilians-Universität (LMU) Munich, Munich, Germany
| | - Isabel Matz
- Berlin Institute of Health at Charité—Universitätsmedizin Berlin, BIH Center for Regenerative Therapies (BCRT), Berlin, Germany
- Berlin-Brandenburg Center for Regenerative Therapies, Charité—Universitätsmedizin Berlin, Campus Virchow Klinikum (CVK), Berlin, Germany
- German Center for Cardiovascular Research (DZHK), Partner Site Berlin, Berlin, Germany
| | - Erik Brauer
- Berlin Institute of Health at Charité—Universitätsmedizin Berlin, Julius Wolff Institute, Berlin, Germany
| | - Yi Xuan Shia
- Institute for Cardiovascular Prevention (IPEK), Ludwig-Maximilians-Universität (LMU) Munich, Munich, Germany
| | - Muhammad El-Shafeey
- Berlin Institute of Health at Charité—Universitätsmedizin Berlin, BIH Center for Regenerative Therapies (BCRT), Berlin, Germany
- Berlin-Brandenburg Center for Regenerative Therapies, Charité—Universitätsmedizin Berlin, Campus Virchow Klinikum (CVK), Berlin, Germany
- German Center for Cardiovascular Research (DZHK), Partner Site Berlin, Berlin, Germany
- Medical Biotechnology Research Department, Genetic Engineering and Biotechnology Research Institute (GEBRI), City of Scientific Research and Technological Applications, Alexandria, Egypt
| | - Suzanne E. Koch
- Berlin-Brandenburg Center for Regenerative Therapies, Charité—Universitätsmedizin Berlin, Campus Virchow Klinikum (CVK), Berlin, Germany
- Department of Biomedical Engineering, Eindhoven University of Technology, Eindhoven, Netherlands
| | - Kapka Miteva
- Berlin-Brandenburg Center for Regenerative Therapies, Charité—Universitätsmedizin Berlin, Campus Virchow Klinikum (CVK), Berlin, Germany
- Division of Cardiology, Foundation for Medical Research, Department of Medicine Specialized Medicine, Faculty of Medicine, University of Geneva, Geneva, Switzerland
| | - Christin Mucha
- Berlin-Brandenburg Center for Regenerative Therapies, Charité—Universitätsmedizin Berlin, Campus Virchow Klinikum (CVK), Berlin, Germany
| | - Georg N. Duda
- Berlin Institute of Health at Charité—Universitätsmedizin Berlin, BIH Center for Regenerative Therapies (BCRT), Berlin, Germany
- Berlin-Brandenburg Center for Regenerative Therapies, Charité—Universitätsmedizin Berlin, Campus Virchow Klinikum (CVK), Berlin, Germany
- Berlin Institute of Health at Charité—Universitätsmedizin Berlin, Julius Wolff Institute, Berlin, Germany
| | - Ansgar Petersen
- Berlin Institute of Health at Charité—Universitätsmedizin Berlin, BIH Center for Regenerative Therapies (BCRT), Berlin, Germany
- Berlin-Brandenburg Center for Regenerative Therapies, Charité—Universitätsmedizin Berlin, Campus Virchow Klinikum (CVK), Berlin, Germany
- Berlin Institute of Health at Charité—Universitätsmedizin Berlin, Julius Wolff Institute, Berlin, Germany
| | - Sabine Steffens
- Institute for Cardiovascular Prevention (IPEK), Ludwig-Maximilians-Universität (LMU) Munich, Munich, Germany
- German Center for Cardiovascular Research (DZHK), Partner Site Munich Heart Alliance (MHA), Munich, Germany
| | - Carsten Tschöpe
- Berlin Institute of Health at Charité—Universitätsmedizin Berlin, BIH Center for Regenerative Therapies (BCRT), Berlin, Germany
- Berlin-Brandenburg Center for Regenerative Therapies, Charité—Universitätsmedizin Berlin, Campus Virchow Klinikum (CVK), Berlin, Germany
- German Center for Cardiovascular Research (DZHK), Partner Site Berlin, Berlin, Germany
- Department Cardiology, Angiology, and Intensive Medicine (CVK) at the German Heart Center of the Charite (DHZC), Charité—Universitätsmedizin Berlin, Berlin, Germany
- Institute of Heart Diseases, Wroclaw Medical University, Wroclaw, Poland
| | - Sophie Van Linthout
- Berlin Institute of Health at Charité—Universitätsmedizin Berlin, BIH Center for Regenerative Therapies (BCRT), Berlin, Germany
- Berlin-Brandenburg Center for Regenerative Therapies, Charité—Universitätsmedizin Berlin, Campus Virchow Klinikum (CVK), Berlin, Germany
- German Center for Cardiovascular Research (DZHK), Partner Site Berlin, Berlin, Germany
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Horiguchi H, Kadomatsu T, Yamashita T, Yumoto S, Terada K, Sato M, Morinaga J, Miyata K, Oike Y. ANGPTL2 promotes immune checkpoint inhibitor-related murine autoimmune myocarditis. Commun Biol 2023; 6:965. [PMID: 37736764 PMCID: PMC10517162 DOI: 10.1038/s42003-023-05338-4] [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: 04/17/2023] [Accepted: 09/08/2023] [Indexed: 09/23/2023] Open
Abstract
Use of immune checkpoint inhibitors (ICIs) as cancer immunotherapy advances rapidly in the clinic. Despite their therapeutic benefits, ICIs can cause clinically significant immune-related adverse events (irAEs), including myocarditis. However, the cellular and molecular mechanisms regulating irAE remain unclear. Here, we investigate the function of Angiopoietin-like protein 2 (ANGPTL2), a potential inflammatory mediator, in a mouse model of ICI-related autoimmune myocarditis. ANGPTL2 deficiency attenuates autoimmune inflammation in these mice, an outcome associated with decreased numbers of T cells and macrophages. We also show that cardiac fibroblasts express abundant ANGPTL2. Importantly, cardiac myofibroblast-derived ANGPTL2 enhances expression of chemoattractants via the NF-κB pathway, accelerating T cell recruitment into heart tissues. Our findings suggest an immunostimulatory function for ANGPTL2 in the context of ICI-related autoimmune inflammation and highlight the pathophysiological significance of ANGPTL2-mediated cardiac myofibroblast/immune cell crosstalk in enhancing autoimmune responses. These findings overall provide insight into mechanisms regulating irAEs.
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Affiliation(s)
- Haruki Horiguchi
- Department of Molecular Genetics, Graduate School of Medical Science, Kumamoto University, Kumamoto, 860-8556, Japan
- Department of Aging and Geriatric Medicine, Graduate School of Medical Science, Kumamoto University, Kumamoto, 860-8556, Japan
| | - Tsuyoshi Kadomatsu
- Department of Molecular Genetics, Graduate School of Medical Science, Kumamoto University, Kumamoto, 860-8556, Japan.
- Center for Metabolic Regulation of Healthy Aging (CMHA), Graduate School of Medical Sciences, Kumamoto University, Kumamoto, 860-8556, Japan.
| | - Tomoya Yamashita
- Department of Molecular Genetics, Graduate School of Medical Science, Kumamoto University, Kumamoto, 860-8556, Japan
| | - Shinsei Yumoto
- Department of Molecular Genetics, Graduate School of Medical Science, Kumamoto University, Kumamoto, 860-8556, Japan
- Department of Gastroenterological Surgery, Graduate School of Medical Sciences, Kumamoto University, Kumamoto, 860-8556, Japan
| | - Kazutoyo Terada
- Department of Molecular Genetics, Graduate School of Medical Science, Kumamoto University, Kumamoto, 860-8556, Japan
- Center for Metabolic Regulation of Healthy Aging (CMHA), Graduate School of Medical Sciences, Kumamoto University, Kumamoto, 860-8556, Japan
| | - Michio Sato
- Department of Molecular Genetics, Graduate School of Medical Science, Kumamoto University, Kumamoto, 860-8556, Japan
| | - Jun Morinaga
- Department of Molecular Genetics, Graduate School of Medical Science, Kumamoto University, Kumamoto, 860-8556, Japan
| | - Keishi Miyata
- Department of Molecular Genetics, Graduate School of Medical Science, Kumamoto University, Kumamoto, 860-8556, Japan
- Center for Metabolic Regulation of Healthy Aging (CMHA), Graduate School of Medical Sciences, Kumamoto University, Kumamoto, 860-8556, Japan
| | - Yuichi Oike
- Department of Molecular Genetics, Graduate School of Medical Science, Kumamoto University, Kumamoto, 860-8556, Japan.
- Department of Aging and Geriatric Medicine, Graduate School of Medical Science, Kumamoto University, Kumamoto, 860-8556, Japan.
- Center for Metabolic Regulation of Healthy Aging (CMHA), Graduate School of Medical Sciences, Kumamoto University, Kumamoto, 860-8556, Japan.
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Flinn MA, Alvarez-Argote S, Knas MC, Almeida VA, Paddock SJ, Zhou X, Buddell T, Jamal A, Taylor R, Liu P, Drnevich J, Patterson M, Link BA, O’Meara CC. Myofibroblast Ccn3 is regulated by Yap and Wwtr1 and contributes to adverse cardiac outcomes. Front Cardiovasc Med 2023; 10:1142612. [PMID: 36998974 PMCID: PMC10043314 DOI: 10.3389/fcvm.2023.1142612] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2023] [Accepted: 02/20/2023] [Indexed: 03/16/2023] Open
Abstract
Introduction While Yap and Wwtr1 regulate resident cardiac fibroblast to myofibroblast differentiation following cardiac injury, their role specifically in activated myofibroblasts remains unexplored. Methods We assessed the pathophysiological and cellular consequence of genetic depletion of Yap alone (Yap fl/fl ;Postn MCM ) or Yap and Wwtr1 (Yap fl/fl ;Wwtr1 fl/+ ;Postn MCM ) in adult mouse myofibroblasts following myocardial infarction and identify and validate novel downstream factors specifically in cardiac myofibroblasts that mediate pathological remodeling. Results Following myocardial infarction, depletion of Yap in myofibroblasts had minimal effect on heart function while depletion of Yap/Wwtr1 resulted in smaller scars, reduced interstitial fibrosis, and improved ejection fraction and fractional shortening. Single cell RNA sequencing of interstitial cardiac cells 7 days post infarction showed suppression of pro-fibrotic genes in fibroblasts derived from Yap fl/fl ,Wwtr1 fl/+ ;Postn MCM hearts. In vivo myofibroblast depletion of Yap/Wwtr1 as well in vitro knockdown of Yap/Wwtr1 dramatically decreased RNA and protein expression of the matricellular factor Ccn3. Administration of recombinant CCN3 to adult mice following myocardial infarction remarkably aggravated cardiac function and scarring. CCN3 administration drove myocardial gene expression of pro-fibrotic genes in infarcted left ventricles implicating CCN3 as a novel driver of cardiac fibrotic processes following myocardial infarction. Discussion Yap/Wwtr1 depletion in myofibroblasts attenuates fibrosis and significantly improves cardiac outcomes after myocardial infarction and we identify Ccn3 as a factor downstream of Yap/Wwtr1 that contributes to adverse cardiac remodeling post MI. Myofibroblast expression of Yap, Wwtr1, and Ccn3 could be further explored as potential therapeutic targets for modulating adverse cardiac remodeling post injury.
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Affiliation(s)
- Michael A. Flinn
- Department of Physiology, Medical College of Wisconsin, Milwaukee, WI, United States
- Cardiovascular Center, Medical College of Wisconsin, Milwaukee, WI, United States
| | - Santiago Alvarez-Argote
- Department of Physiology, Medical College of Wisconsin, Milwaukee, WI, United States
- Cardiovascular Center, Medical College of Wisconsin, Milwaukee, WI, United States
| | - Makenna C. Knas
- Department of Physiology, Medical College of Wisconsin, Milwaukee, WI, United States
- Cardiovascular Center, Medical College of Wisconsin, Milwaukee, WI, United States
| | - Victor Alencar Almeida
- Department of Physiology, Medical College of Wisconsin, Milwaukee, WI, United States
- Cardiovascular Center, Medical College of Wisconsin, Milwaukee, WI, United States
| | - Samantha J. Paddock
- Department of Physiology, Medical College of Wisconsin, Milwaukee, WI, United States
- Cardiovascular Center, Medical College of Wisconsin, Milwaukee, WI, United States
| | - Xiaoxu Zhou
- Institute of Translational Medicine, Zhejiang University School of Medicine,Hangzhou, China
| | - Tyler Buddell
- Cardiovascular Center, Medical College of Wisconsin, Milwaukee, WI, United States
- Department of Cell Biology, Neurobiology, and Anatomy, Medical College of Wisconsin, Milwaukee, WI, United States
| | - Ayana Jamal
- Cardiovascular Center, Medical College of Wisconsin, Milwaukee, WI, United States
- Department of Cell Biology, Neurobiology, and Anatomy, Medical College of Wisconsin, Milwaukee, WI, United States
| | - Reiauna Taylor
- Department of Physiology, Medical College of Wisconsin, Milwaukee, WI, United States
| | - Pengyuan Liu
- Department of Physiology, Medical College of Wisconsin, Milwaukee, WI, United States
- Institute of Translational Medicine, Zhejiang University School of Medicine,Hangzhou, China
| | - Jenny Drnevich
- High Performance Computing in Biology (HPCBio) and the Roy J. Carver Biotechnology Center, University of Illinois, Urbana-Champaign, Champaign, IL, United States
| | - Michaela Patterson
- Cardiovascular Center, Medical College of Wisconsin, Milwaukee, WI, United States
- Department of Cell Biology, Neurobiology, and Anatomy, Medical College of Wisconsin, Milwaukee, WI, United States
| | - Brian A. Link
- Cardiovascular Center, Medical College of Wisconsin, Milwaukee, WI, United States
- Department of Cell Biology, Neurobiology, and Anatomy, Medical College of Wisconsin, Milwaukee, WI, United States
| | - Caitlin C. O’Meara
- Department of Physiology, Medical College of Wisconsin, Milwaukee, WI, United States
- Cardiovascular Center, Medical College of Wisconsin, Milwaukee, WI, United States
- Genomics Sciences and Precision Medicine Center, Medical College of Wisconsin, Milwaukee, WI, United States
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Liu J, Lu J, Zhang L, Liu Y, Zhang Y, Gao Y, Yuan X, Xiang M, Tang Q. The combination of exercise and metformin inhibits TGF-β1/Smad pathway to attenuate myocardial fibrosis in db/db mice by reducing NF-κB-mediated inflammatory response. Biomed Pharmacother 2023; 157:114080. [PMID: 36481406 DOI: 10.1016/j.biopha.2022.114080] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2022] [Revised: 11/25/2022] [Accepted: 12/02/2022] [Indexed: 12/12/2022] Open
Abstract
Persistent hyperglycemia increases inflammation response, promoting the development of myocardial fibrosis. Based on our previous research that exercise and metformin alone or their combination intervention could attenuate myocardial fibrosis in db/db mice, this study aimed to further explore the underlying mechanisms by which these interventions attenuate myocardial fibrosis in early diabetic cardiomyopathy. Forty BKS db/db mice were randomly divided into four groups. Diabetic db/db mice without intervention were in the C group. Aerobic exercise (7-12 m/min, 30-40 min/day, 5 days/week) was performed in the E group. Metformin (300 mg·kg-1·day-1) was administered in the M group. Exercise combined with metformin was performed in the EM group. Ten wild-type mice were in the WT group. All interventions were administered for 8 weeks. Results showed that the expression levels of α-SMA, Collagen I, and Collagen III were increased in 16-week-old db/db mice, which were reversed by exercise and metformin alone or their combination intervention. All interventions attenuated the level of TGF-β1/Smad2/3 pathway-related proteins and reduced the expression of inflammatory signaling pathway-regulated proteins TNF-α, p-IκBα/IκBα, and p-NF-κB p65/NF-κB p65 in db/db mice. Furthermore, metformin intervention inhibited HNF4α expression via AMPK activation, whereas exercise intervention increased the expression of IL-6 instead of activating AMPK. In conclusion, exercise and metformin alone or their combination intervention inhibited the TGF-β1/Smad pathway to attenuate myocardial fibrosis by reducing NF-κB-mediated inflammatory response. The anti-fibrotic effects were regulated by metformin-activated AMPK or exercise-induced elevation of IL-6, whereas their combination intervention showed no synergistic effects.
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Affiliation(s)
- Jingjing Liu
- School of Sports and Health, Nanjing Sport Institute, Nanjing 210014, China.
| | - Jiao Lu
- School of Sports and Health, Nanjing Sport Institute, Nanjing 210014, China; Jiangsu Collaborative Innovation Center for Sport and Health Project, Nanjing 210014, China.
| | - Liumei Zhang
- School of Sports and Health, Nanjing Sport Institute, Nanjing 210014, China.
| | - Yuting Liu
- School of Sports and Health, Nanjing Sport Institute, Nanjing 210014, China.
| | - Yuan Zhang
- School of Sports and Health, Nanjing Sport Institute, Nanjing 210014, China.
| | - Yaran Gao
- School of Sports and Health, Nanjing Sport Institute, Nanjing 210014, China.
| | - Xinmeng Yuan
- School of Sports and Health, Nanjing Sport Institute, Nanjing 210014, China.
| | - Mengqi Xiang
- School of Sports and Health, Nanjing Sport Institute, Nanjing 210014, China.
| | - Qiang Tang
- School of Sports and Health, Nanjing Sport Institute, Nanjing 210014, China; Jiangsu Collaborative Innovation Center for Sport and Health Project, Nanjing 210014, China.
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9
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Chalise U, Becirovic‐Agic M, Lindsey ML. The cardiac wound healing response to myocardial infarction. WIREs Mech Dis 2023; 15:e1584. [PMID: 36634913 PMCID: PMC10077990 DOI: 10.1002/wsbm.1584] [Citation(s) in RCA: 9] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2021] [Revised: 03/31/2022] [Accepted: 05/18/2022] [Indexed: 01/14/2023]
Abstract
Myocardial infarction (MI) is defined as evidence of myocardial necrosis consistent with prolonged ischemia. In response to MI, the myocardium undergoes a series of wound healing events that initiate inflammation and shift to anti-inflammation before transitioning to tissue repair that culminates in scar formation to replace the region of the necrotic myocardium. The overall response to MI is determined by two major steps, the first of which is the secretion of proteases by infiltrating leukocytes to breakdown extracellular matrix (ECM) components, a necessary step to remove necrotic cardiomyocytes. The second step is the generation of new ECM that comprises the scar; and this step is governed by the cardiac fibroblasts as the major source of new ECM synthesis. The leukocyte component resides in the middle of the two-step process, contributing to both sides as the leukocytes transition from pro-inflammatory to anti-inflammatory and reparative cell phenotypes. The balance between the two steps determines the final quantity and quality of scar formed, which in turn contributes to chronic outcomes following MI, including the progression to heart failure. This review will summarize our current knowledge regarding the cardiac wound healing response to MI, primarily focused on experimental models of MI in mice. This article is categorized under: Cardiovascular Diseases > Molecular and Cellular Physiology Immune System Diseases > Molecular and Cellular Physiology.
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Affiliation(s)
- Upendra Chalise
- Department of Cellular and Integrative Physiology, Center for Heart and Vascular ResearchUniversity of Nebraska Medical CenterOmahaNebraskaUSA
- Research ServiceNebraska‐Western Iowa Health Care SystemOmahaNebraskaUSA
| | - Mediha Becirovic‐Agic
- Department of Cellular and Integrative Physiology, Center for Heart and Vascular ResearchUniversity of Nebraska Medical CenterOmahaNebraskaUSA
- Research ServiceNebraska‐Western Iowa Health Care SystemOmahaNebraskaUSA
| | - Merry L. Lindsey
- Department of Cellular and Integrative Physiology, Center for Heart and Vascular ResearchUniversity of Nebraska Medical CenterOmahaNebraskaUSA
- Research ServiceNebraska‐Western Iowa Health Care SystemOmahaNebraskaUSA
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10
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Cardiac fibroblasts and mechanosensation in heart development, health and disease. Nat Rev Cardiol 2022; 20:309-324. [PMID: 36376437 DOI: 10.1038/s41569-022-00799-2] [Citation(s) in RCA: 29] [Impact Index Per Article: 14.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 10/04/2022] [Indexed: 11/16/2022]
Abstract
The term 'mechanosensation' describes the capacity of cells to translate mechanical stimuli into the coordinated regulation of intracellular signals, cellular function, gene expression and epigenetic programming. This capacity is related not only to the sensitivity of the cells to tissue motion, but also to the decryption of tissue geometric arrangement and mechanical properties. The cardiac stroma, composed of fibroblasts, has been historically considered a mechanically passive component of the heart. However, the latest research suggests that the mechanical functions of these cells are an active and necessary component of the developmental biology programme of the heart that is involved in myocardial growth and homeostasis, and a crucial determinant of cardiac repair and disease. In this Review, we discuss the general concept of cell mechanosensation and force generation as potent regulators in heart development and pathology, and describe the integration of mechanical and biohumoral pathways predisposing the heart to fibrosis and failure. Next, we address the use of 3D culture systems to integrate tissue mechanics to mimic cardiac remodelling. Finally, we highlight the potential of mechanotherapeutic strategies, including pharmacological treatment and device-mediated left ventricular unloading, to reverse remodelling in the failing heart.
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11
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Matz I, Pappritz K, Springer J, Van Linthout S. Left ventricle- and skeletal muscle-derived fibroblasts exhibit a differential inflammatory and metabolic responsiveness to interleukin-6. Front Immunol 2022; 13:947267. [PMID: 35967380 PMCID: PMC9366145 DOI: 10.3389/fimmu.2022.947267] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2022] [Accepted: 07/04/2022] [Indexed: 11/13/2022] Open
Abstract
Interleukin-6 (IL-6) is an important player in chronic inflammation associated with heart failure and tumor-induced cachexia. Fibroblasts are salient mediators of both inflammation and fibrosis. Whereas the general outcome of IL-6 on the heart’s function and muscle wasting has been intensively studied, the influence of IL-6 on fibroblasts of the heart and skeletal muscle (SM) has not been analyzed so far. We illustrate that SM-derived fibroblasts exhibit higher basal mRNA expression of α-SMA, extracellular matrix molecules (collagen1a1/3a1/5a1), and chemokines (CCL2, CCL7, and CX3CL1) as compared to the left ventricle (LV)-derived fibroblasts. IL-6 drives the transdifferentiation of fibroblasts into myofibroblasts as indicated by an increase in α-SMA expression and upregulates NLRP3 inflammasome activity in both LV- and SM-derived fibroblasts. IL-6 increases the release of CCL7 to CX3CL1 in the supernatant of SM-derived fibroblasts associated with the attraction of more pro(Ly6Chi) versus anti(Ly6Clo) inflammatory monocytes as compared to unstimulated fibroblasts. IL-6-stimulated LV-derived fibroblasts attract less Ly6Chi to Ly6Clo monocytes compared to IL-6-stimulated SM-derived fibroblasts. In addition, SM-derived fibroblasts have a higher mitochondrial energy turnover and lower glycolytic activity versus LV-derived fibroblasts under basal and IL-6 conditions. In conclusion, IL-6 modulates the inflammatory and metabolic phenotype of LV- and SM-originated fibroblasts.
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Affiliation(s)
- Isabell Matz
- Berlin Institute of Health at Charité - Universitätmedizin Berlin, Berlin Institute of Health (BIH) Center for Regenerative Therapies (BCRT), Berlin, Germany
- German Center for Cardiovascular Research (DZHK), Partner Site Berlin, Berlin, Germany
| | - Kathleen Pappritz
- Berlin Institute of Health at Charité - Universitätmedizin Berlin, Berlin Institute of Health (BIH) Center for Regenerative Therapies (BCRT), Berlin, Germany
- German Center for Cardiovascular Research (DZHK), Partner Site Berlin, Berlin, Germany
| | - Jochen Springer
- Berlin Institute of Health at Charité - Universitätmedizin Berlin, Berlin Institute of Health (BIH) Center for Regenerative Therapies (BCRT), Berlin, Germany
- German Center for Cardiovascular Research (DZHK), Partner Site Berlin, Berlin, Germany
| | - Sophie Van Linthout
- Berlin Institute of Health at Charité - Universitätmedizin Berlin, Berlin Institute of Health (BIH) Center for Regenerative Therapies (BCRT), Berlin, Germany
- German Center for Cardiovascular Research (DZHK), Partner Site Berlin, Berlin, Germany
- *Correspondence: Sophie Van Linthout,
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12
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Pappritz K, Lin J, El-Shafeey M, Fechner H, Kühl U, Alogna A, Spillmann F, Elsanhoury A, Schulz R, Tschöpe C, Van Linthout S. Colchicine prevents disease progression in viral myocarditis via modulating the NLRP3 inflammasome in the cardiosplenic axis. ESC Heart Fail 2022; 9:925-941. [PMID: 35178861 PMCID: PMC8934990 DOI: 10.1002/ehf2.13845] [Citation(s) in RCA: 17] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2021] [Revised: 12/17/2021] [Accepted: 02/04/2022] [Indexed: 12/11/2022] Open
Abstract
Aim The acute phase of a coxsackievirus 3 (CVB3)‐induced myocarditis involves direct toxic cardiac effects and the systemic activation of the immune system, including the cardiosplenic axis. Consequently, the nucleotide‐binding oligomerization domain‐like receptor pyrin domain‐containing‐3 (NLRP3) inflammasome pathway is activated, which plays a role in disease pathogenesis and progression. The anti‐inflammatory drug colchicine exerts its effects, in part, via reducing NLRP3 activity, and has been shown to improve several cardiac diseases, including acute coronary syndrome and pericarditis. The aim of the present study was to evaluate the potential of colchicine to improve experimental CVB3‐induced myocarditis. Methods and results C57BL6/j mice were intraperitoneally injected with 1 × 105 plaque forming units of CVB3. After 24 h, mice were treated with colchicine (5 μmol/kg body weight) or phosphate‐buffered saline (PBS) via oral gavage (p.o.). Seven days post infection, cardiac function was haemodynamically characterized via conductance catheter measurements. Blood, the left ventricle (LV) and spleen were harvested for subsequent analyses. In vitro experiments on LV‐derived fibroblasts (FB) and HL‐1 cells were performed to further evaluate the anti‐(fibro)inflammatory and anti‐apoptotic effects of colchicine via gene expression analysis, Sirius Red assay, and flow cytometry. CVB3 + colchicine mice displayed improved LV function compared with CVB3 + PBS mice, paralleled by a 4.7‐fold (P < 0.01) and 1.7‐fold (P < 0.001) reduction in LV CVB3 gene expression and cardiac troponin‐I levels in the serum, respectively. Evaluation of components of the NLRP3 inflammasome revealed an increased percentage of apoptosis‐associated speck‐like protein containing a CARD domain (ASC)‐expressing, caspase‐1‐expressing, and interleukin‐1β‐expressing cells in the myocardium and in the spleen of CVB3 + PBS vs. control mice, which was reduced in CVB3 + colchicine compared with CVB3 + PBS mice. This was accompanied by 1.4‐fold (P < 0.0001), 1.7‐fold (P < 0.0001), and 1.7‐fold (P < 0.0001) lower numbers of cardiac dendritic cells, natural killer cells, and macrophages, respectively, in CVB3 + colchicine compared with CVB3 + PBS mice. A 1.9‐fold (P < 0.05) and 4.6‐fold (P < 0.001) reduced cardiac gene expression of the fibrotic markers, Col1a1 and lysyl oxidase, respectively, was detected in CVB3 + colchicine mice compared with CVB3 + PBS animals, and reflected by a 2.2‐fold (P < 0.05) decreased Collagen I/III protein ratio. Colchicine further reduced Col3a1 mRNA and collagen protein expression in CVB3‐infected FB and lowered apoptosis and viral progeny release in CVB3‐infected HL‐1 cells. In both CVB3 FB and HL‐1 cells, colchicine down‐regulated the NLRP3 inflammasome‐related components ASC, caspase‐1, and IL‐1β. Conclusions Colchicine improves LV function in CVB3‐induced myocarditis, involving a decrease in cardiac and splenic NLRP3 inflammasome activity, without exacerbation of CVB3 load.
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Affiliation(s)
- Kathleen Pappritz
- BIH Center for Regenerative Therapies (BCRT), Berlin Institute of Health at Charité, Universitätmedizin Berlin, Berlin, Germany.,Berlin-Brandenburg Center for Regenerative Therapies, Charité-Universitätsmedizin Berlin, Campus Virchow Klinikum (CVK), Berlin, Germany.,German Center for Cardiovascular Research (DZHK), Partner site Berlin, Berlin, Germany
| | - Jie Lin
- Berlin-Brandenburg Center for Regenerative Therapies, Charité-Universitätsmedizin Berlin, Campus Virchow Klinikum (CVK), Berlin, Germany
| | - Muhammad El-Shafeey
- BIH Center for Regenerative Therapies (BCRT), Berlin Institute of Health at Charité, Universitätmedizin Berlin, Berlin, Germany.,Berlin-Brandenburg Center for Regenerative Therapies, Charité-Universitätsmedizin Berlin, Campus Virchow Klinikum (CVK), Berlin, Germany.,German Center for Cardiovascular Research (DZHK), Partner site Berlin, Berlin, Germany.,Physiologisches Institut, Fachbereich Medizin der Justus-Liebig-Universität, Giessen, Germany.,Medical Biotechnology Research Department, Genetic Engineering and Biotechnology Research Institute (GEBRI), City of Scientific Research and Technological Applications, Alexandria, Egypt
| | - Henry Fechner
- Department of Applied Biochemistry, Institute for Biotechnology, Technische Universität Berlin, Berlin, Germany
| | - Uwe Kühl
- Department of Cardiology, Charité - Universitätsmedizin Berlin, CVK, Berlin, Germany
| | - Alessio Alogna
- Department of Cardiology, Charité - Universitätsmedizin Berlin, CVK, Berlin, Germany
| | - Frank Spillmann
- Department of Cardiology, Charité - Universitätsmedizin Berlin, CVK, Berlin, Germany
| | - Ahmed Elsanhoury
- BIH Center for Regenerative Therapies (BCRT), Berlin Institute of Health at Charité, Universitätmedizin Berlin, Berlin, Germany.,Berlin-Brandenburg Center for Regenerative Therapies, Charité-Universitätsmedizin Berlin, Campus Virchow Klinikum (CVK), Berlin, Germany.,German Center for Cardiovascular Research (DZHK), Partner site Berlin, Berlin, Germany
| | - Rainer Schulz
- Physiologisches Institut, Fachbereich Medizin der Justus-Liebig-Universität, Giessen, Germany
| | - Carsten Tschöpe
- BIH Center for Regenerative Therapies (BCRT), Berlin Institute of Health at Charité, Universitätmedizin Berlin, Berlin, Germany.,Berlin-Brandenburg Center for Regenerative Therapies, Charité-Universitätsmedizin Berlin, Campus Virchow Klinikum (CVK), Berlin, Germany.,German Center for Cardiovascular Research (DZHK), Partner site Berlin, Berlin, Germany.,Department of Cardiology, Charité - Universitätsmedizin Berlin, CVK, Berlin, Germany
| | - Sophie Van Linthout
- BIH Center for Regenerative Therapies (BCRT), Berlin Institute of Health at Charité, Universitätmedizin Berlin, Berlin, Germany.,Berlin-Brandenburg Center for Regenerative Therapies, Charité-Universitätsmedizin Berlin, Campus Virchow Klinikum (CVK), Berlin, Germany.,German Center for Cardiovascular Research (DZHK), Partner site Berlin, Berlin, Germany
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13
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Waleczek FJG, Sansonetti M, Xiao K, Jung M, Mitzka S, Dendorfer A, Weber N, Perbellini F, Thum T. Chemical and mechanical activation of resident cardiac macrophages in the living myocardial slice ex vivo model. Basic Res Cardiol 2022; 117:63. [PMID: 36449104 PMCID: PMC9712328 DOI: 10.1007/s00395-022-00971-2] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/19/2022] [Revised: 11/16/2022] [Accepted: 11/16/2022] [Indexed: 12/02/2022]
Abstract
Resident cardiac macrophages (rcMACs) are among the most abundant immune cells in the heart. Plasticity and activation are hallmarks of rcMACs in response to changes in the microenvironment, which is essential for in vitro experimentation. The in vivo investigation is confounded by the infiltration of other cells hindering direct studies of rcMACs. As a tool to investigate rcMACs, we applied the ex vivo model of living myocardial slices (LMS). LMS are ultrathin ex vivo multicellular cardiac preparations in which the circulatory network is interrupted. The absence of infiltration in this model enables the investigation of the rcMACs response to immunomodulatory and mechanical stimulations. Such conditions were generated by applying interferon-gamma (IFN-γ) or interleukine-4 (IL-4) and altering the preload of cultured LMS, respectively. The immunomodulatory stimulation of the LMS induced alterations of the gene expression pattern without affecting tissue contractility. Following 24 h culture, low input RNA sequencing of rcMACs isolated from LMS was used for gene ontology analysis. Reducing the tissue stretch (unloading) of LMS altered the gene ontology clusters of isolated rcMACs with intermediate semantic similarity to IFN-γ triggered reaction. Through the overlap of genes affected by IFN-γ and unloading, we identified Allograft inflammatory factor 1 (AIF-1) as a potential marker gene for inflammation of rcMACs as significantly altered in whole immunomodulated LMS. MicroRNAs associated with the transcriptomic changes of rcMACs in unloaded LMS were identified in silico. Here, we demonstrate the approach of LMS to understand load-triggered cardiac inflammation and, thus, identify potential translationally important therapeutic targets.
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Affiliation(s)
- F. J. G. Waleczek
- grid.10423.340000 0000 9529 9877Institute of Molecular and Translational Therapeutic Strategies (IMTTS), Hannover Medical School, Carl-Neuberg Straße 1, 30625 Hannover, Germany
| | - M. Sansonetti
- grid.10423.340000 0000 9529 9877Institute of Molecular and Translational Therapeutic Strategies (IMTTS), Hannover Medical School, Carl-Neuberg Straße 1, 30625 Hannover, Germany
| | - K. Xiao
- grid.10423.340000 0000 9529 9877Institute of Molecular and Translational Therapeutic Strategies (IMTTS), Hannover Medical School, Carl-Neuberg Straße 1, 30625 Hannover, Germany ,grid.4561.60000 0000 9261 3939Fraunhofer Institute ITEM, Nikolai-Fuchs-Straße 1, 30625 Hannover, Germany
| | - M. Jung
- grid.10423.340000 0000 9529 9877Institute of Molecular and Translational Therapeutic Strategies (IMTTS), Hannover Medical School, Carl-Neuberg Straße 1, 30625 Hannover, Germany
| | - S. Mitzka
- grid.10423.340000 0000 9529 9877Institute of Molecular and Translational Therapeutic Strategies (IMTTS), Hannover Medical School, Carl-Neuberg Straße 1, 30625 Hannover, Germany ,grid.4561.60000 0000 9261 3939Fraunhofer Institute ITEM, Nikolai-Fuchs-Straße 1, 30625 Hannover, Germany
| | - A. Dendorfer
- grid.5252.00000 0004 1936 973XWalter-Brendel-Centre of Experimental Medicine, University Hospital, Ludwig-Maximilians-University München, Marchioninistraße 27, 81377 Munich, Germany
| | - N. Weber
- grid.10423.340000 0000 9529 9877Institute of Molecular and Translational Therapeutic Strategies (IMTTS), Hannover Medical School, Carl-Neuberg Straße 1, 30625 Hannover, Germany
| | - F. Perbellini
- grid.10423.340000 0000 9529 9877Institute of Molecular and Translational Therapeutic Strategies (IMTTS), Hannover Medical School, Carl-Neuberg Straße 1, 30625 Hannover, Germany
| | - T. Thum
- grid.10423.340000 0000 9529 9877Institute of Molecular and Translational Therapeutic Strategies (IMTTS), Hannover Medical School, Carl-Neuberg Straße 1, 30625 Hannover, Germany ,grid.4561.60000 0000 9261 3939Fraunhofer Institute ITEM, Nikolai-Fuchs-Straße 1, 30625 Hannover, Germany
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14
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Grabowski K, Herlan L, Witten A, Qadri F, Eisenreich A, Lindner D, Schädlich M, Schulz A, Subrova J, Mhatre KN, Primessnig U, Plehm R, van Linthout S, Escher F, Bader M, Stoll M, Westermann D, Heinzel FR, Kreutz R. Cpxm2 as a novel candidate for cardiac hypertrophy and failure in hypertension. Hypertens Res 2022; 45:292-307. [PMID: 34916661 PMCID: PMC8766285 DOI: 10.1038/s41440-021-00826-8] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2021] [Revised: 10/08/2021] [Accepted: 10/29/2021] [Indexed: 12/18/2022]
Abstract
Treatment of hypertension-mediated cardiac damage with left ventricular (LV) hypertrophy (LVH) and heart failure remains challenging. To identify novel targets, we performed comparative transcriptome analysis between genetic models derived from stroke-prone spontaneously hypertensive rats (SHRSP). Here, we identified carboxypeptidase X 2 (Cpxm2) as a genetic locus affecting LV mass. Analysis of isolated rat cardiomyocytes and cardiofibroblasts indicated Cpxm2 expression and intrinsic upregulation in genetic hypertension. Immunostaining indicated that CPXM2 associates with the t-tubule network of cardiomyocytes. The functional role of Cpxm2 was further investigated in Cpxm2-deficient (KO) and wild-type (WT) mice exposed to deoxycorticosterone acetate (DOCA). WT and KO animals developed severe and similar systolic hypertension in response to DOCA. WT mice developed severe LV damage, including increases in LV masses and diameters, impairment of LV systolic and diastolic function and reduced ejection fraction. These changes were significantly ameliorated or even normalized (i.e., ejection fraction) in KO-DOCA animals. LV transcriptome analysis showed a molecular cardiac hypertrophy/remodeling signature in WT but not KO mice with significant upregulation of 1234 transcripts, including Cpxm2, in response to DOCA. Analysis of endomyocardial biopsies from patients with cardiac hypertrophy indicated significant upregulation of CPXM2 expression. These data support further translational investigation of CPXM2.
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Affiliation(s)
- Katja Grabowski
- grid.7468.d0000 0001 2248 7639Charité—Universitätsmedizin Berlin, corporate member of Freie Universität Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health (BIH), Institut für Klinische Pharmakologie und Toxikologie, 10178 Berlin, Germany
| | - Laura Herlan
- grid.7468.d0000 0001 2248 7639Charité—Universitätsmedizin Berlin, corporate member of Freie Universität Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health (BIH), Institut für Klinische Pharmakologie und Toxikologie, 10178 Berlin, Germany
| | - Anika Witten
- grid.16149.3b0000 0004 0551 4246Department of Genetic Epidemiology, Institute of Human Genetics, University Hospital Münster, Münster, Germany
| | - Fatimunnisa Qadri
- grid.419491.00000 0001 1014 0849Max-Delbrück Center for Molecular Medicine (MDC), Berlin-Buch, Berlin, Germany
| | - Andreas Eisenreich
- grid.7468.d0000 0001 2248 7639Charité—Universitätsmedizin Berlin, corporate member of Freie Universität Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health (BIH), Institut für Klinische Pharmakologie und Toxikologie, 10178 Berlin, Germany
| | - Diana Lindner
- grid.452396.f0000 0004 5937 5237German Center for Cardiovascular Research (DZHK), Partner site Hamburg/Kiel/Lübeck, Hamburg, Germany ,grid.13648.380000 0001 2180 3484Clinic for Cardiology, University Heart and Vascular Center Hamburg, University Hospital Hamburg-Eppendorf, Hamburg, Germany
| | - Martin Schädlich
- grid.16149.3b0000 0004 0551 4246Department of Genetic Epidemiology, Institute of Human Genetics, University Hospital Münster, Münster, Germany
| | - Angela Schulz
- grid.7468.d0000 0001 2248 7639Charité—Universitätsmedizin Berlin, corporate member of Freie Universität Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health (BIH), Institut für Klinische Pharmakologie und Toxikologie, 10178 Berlin, Germany
| | - Jana Subrova
- grid.7468.d0000 0001 2248 7639Charité—Universitätsmedizin Berlin, corporate member of Freie Universität Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health (BIH), Institut für Klinische Pharmakologie und Toxikologie, 10178 Berlin, Germany
| | - Ketaki Nitin Mhatre
- grid.7468.d0000 0001 2248 7639Charité—Universitätsmedizin Berlin, corporate member of Freie Universität Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health (BIH), Department of Cardiology, Campus Virchow Klinikum, 10178 Berlin, Germany
| | - Uwe Primessnig
- grid.7468.d0000 0001 2248 7639Charité—Universitätsmedizin Berlin, corporate member of Freie Universität Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health (BIH), Department of Cardiology, Campus Virchow Klinikum, 10178 Berlin, Germany ,grid.452396.f0000 0004 5937 5237German Center for Cardiovascular Research (DZHK), Partner Site Berlin, Berlin, Germany
| | - Ralph Plehm
- grid.419491.00000 0001 1014 0849Max-Delbrück Center for Molecular Medicine (MDC), Berlin-Buch, Berlin, Germany
| | - Sophie van Linthout
- grid.452396.f0000 0004 5937 5237German Center for Cardiovascular Research (DZHK), Partner Site Berlin, Berlin, Germany ,grid.6363.00000 0001 2218 4662Charité—Universitätsmedizin Berlin, BCRT—Berlin Institute of Health Center for Regenerative Therapies, Berlin, Germany
| | - Felicitas Escher
- grid.7468.d0000 0001 2248 7639Charité—Universitätsmedizin Berlin, corporate member of Freie Universität Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health (BIH), Department of Cardiology, Campus Virchow Klinikum, 10178 Berlin, Germany ,grid.452396.f0000 0004 5937 5237German Center for Cardiovascular Research (DZHK), Partner Site Berlin, Berlin, Germany ,grid.486773.9Institute of Cardiac Diagnostics and Therapy, IKDT GmbH, Berlin, Germany
| | - Michael Bader
- grid.419491.00000 0001 1014 0849Max-Delbrück Center for Molecular Medicine (MDC), Berlin-Buch, Berlin, Germany ,grid.452396.f0000 0004 5937 5237German Center for Cardiovascular Research (DZHK), Partner Site Berlin, Berlin, Germany ,grid.7468.d0000 0001 2248 7639Charité—Universitätsmedizin Berlin, corporate member of Freie Universität Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health (BIH), 10178 Berlin, Germany ,grid.4562.50000 0001 0057 2672University of Lübeck, Institute for Biology, Ratzeburger Allee 160, 23562 Lübeck, Germany
| | - Monika Stoll
- grid.16149.3b0000 0004 0551 4246Department of Genetic Epidemiology, Institute of Human Genetics, University Hospital Münster, Münster, Germany ,grid.5012.60000 0001 0481 6099Department of Biochemistry, Cardiovascular Research Institute Maastricht, Maastricht University, Maastricht, The Netherlands
| | - Dirk Westermann
- grid.452396.f0000 0004 5937 5237German Center for Cardiovascular Research (DZHK), Partner site Hamburg/Kiel/Lübeck, Hamburg, Germany ,grid.13648.380000 0001 2180 3484Clinic for Cardiology, University Heart and Vascular Center Hamburg, University Hospital Hamburg-Eppendorf, Hamburg, Germany
| | - Frank R. Heinzel
- grid.7468.d0000 0001 2248 7639Charité—Universitätsmedizin Berlin, corporate member of Freie Universität Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health (BIH), Department of Cardiology, Campus Virchow Klinikum, 10178 Berlin, Germany ,grid.452396.f0000 0004 5937 5237German Center for Cardiovascular Research (DZHK), Partner Site Berlin, Berlin, Germany
| | - Reinhold Kreutz
- Charité-Universitätsmedizin Berlin, corporate member of Freie Universität Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health (BIH), Institut für Klinische Pharmakologie und Toxikologie, 10178, Berlin, Germany.
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15
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Liu Z, Chen H, Fan Z, Dai J, Sun Y, Yan L, Wang R, Li X, Wang J. IFN-α-2b Inhibits the Proliferation and Migration of Fibroblasts via the TGFβ/Smad Signaling Pathway to Reduce Postoperative Epidural Fibrosis. J Interferon Cytokine Res 2021; 41:271-282. [PMID: 34410879 DOI: 10.1089/jir.2020.0231] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Epidural fibrosis after lumbar laminectomy refers to a serious complication, and excessive proliferation of fibroblasts is considered the major factor. Interferon-alpha-2b (IFN-α-2b) can exert antiviral and antiproliferative effects, which has been suggested to effectively prevent several fibrotic diseases. However, the effect of IFN-α-2b on the prevention of epidural fibrosis (EF) and its possible mechanism remain unclear. In this study, in vitro and in vivo experiments were performed to examine the possible mechanism of IFN-α-2b for preventing EF. Cell counting kit-8 (CCK-8), cell cycle test, Edu incorporation, wound healing assay, transwell test, and Western blotting assay were performed to investigate the inhibitory effect of IFN-α-2b on the proliferation and migration of fibroblasts in vitro. As indicated from the results, IFN-α-2b was capable of inhibiting proliferation and migration of fibroblasts and inhibiting the activity of the transforming growth factor β (TGFβ)/Smad signaling pathway. In vivo, the effect of IFN-α-2b on the reduction of EF was determined by performing histological macroscopic evaluation and histological and immunohistochemical staining. As suggested from the results, IFN-α-2b significantly inhibited EF after laminectomy. As revealed from the mentioned results, IFN-α-2b may have a promising application for preventing EF in the future.
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Affiliation(s)
- Zhendong Liu
- Department of Orthopedics, Clinical Medical College of Yangzhou University, Subei People's Hospital of Jiangsu Province, Yangzhou, China
| | - Hui Chen
- Department of Orthopedics, Clinical Medical College of Yangzhou University, Subei People's Hospital of Jiangsu Province, Yangzhou, China
| | - Zhehao Fan
- Department of Orthopedics, Clinical Medical College of Yangzhou University, Subei People's Hospital of Jiangsu Province, Yangzhou, China
| | - Jihang Dai
- Department of Orthopedics, Clinical Medical College of Yangzhou University, Subei People's Hospital of Jiangsu Province, Yangzhou, China
| | - Yu Sun
- Department of Orthopedics, Clinical Medical College of Yangzhou University, Subei People's Hospital of Jiangsu Province, Yangzhou, China
| | - Lianqi Yan
- Department of Orthopedics, Clinical Medical College of Yangzhou University, Subei People's Hospital of Jiangsu Province, Yangzhou, China
| | - Rui Wang
- Dermatological Department, Dezhou People's Hospital, Dezhou, China
| | - Xiaolei Li
- Department of Orthopedics, Clinical Medical College of Yangzhou University, Subei People's Hospital of Jiangsu Province, Yangzhou, China
| | - Jingcheng Wang
- Department of Orthopedics, Clinical Medical College of Yangzhou University, Subei People's Hospital of Jiangsu Province, Yangzhou, China
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16
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Amendola A, Garoffolo G, Songia P, Nardacci R, Ferrari S, Bernava G, Canzano P, Myasoedova V, Colavita F, Castilletti C, Sberna G, Capobianchi MR, Piacentini M, Agrifoglio M, Colombo GI, Poggio P, Pesce M. Human cardiosphere-derived stromal cells exposed to SARS-CoV-2 evolve into hyper-inflammatory/pro-fibrotic phenotype and produce infective viral particles depending on the levels of ACE2 receptor expression. Cardiovasc Res 2021; 117:1557-1566. [PMID: 33705542 PMCID: PMC7989620 DOI: 10.1093/cvr/cvab082] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/23/2020] [Accepted: 03/08/2021] [Indexed: 12/17/2022] Open
Abstract
Aims Patients with severe respiratory syndrome caused by SARS-CoV-2 undergo cardiac complications due to hyper-inflammatory conditions. Although the presence of the virus has been detected in the myocardium of infected patients, and infection of induced pluripotent cells-derived cardiomyocytes has been demonstrated, the reported expression of ACE2 in cardiac stromal cells suggests that SARS-CoV-2 may determine cardiac injury by sustaining productive infection and increasing inflammation. Methods and Results We analyzed expression of ACE2 receptor in primary human cardiac stromal cells derived from cardiospheres, using proteomics and transcriptomics before exposing them to SARS-CoV-2 in vitro. Using conventional and high sensitivity PCR methods, we measured virus release in the cellular supernatants and monitored the intracellular viral bioprocessing. We performed high-resolution imaging to show the sites of intracellular viral production and demonstrated the presence of viral particles in the cells with electron microscopy. We finally used RT-qPCR assays to detect genes linked to innate immunity and fibrotic pathways coherently regulated in cells after exposure to the virus. Conclusions Our findings indicate that cardiac stromal cells are susceptible to SARS-CoV-2 infection and produce variable viral yields depending on the extent of cellular ACE2 receptor expression. Interestingly, these cells also evolved toward hyper-inflammatory/pro-fibrotic phenotypes independently of ACE2 levels. Thus, SARS-CoV-2 infection of myocardial stromal cells could be involved in cardiac injury, and explain the high number of complications observed in severe cases of COVID-19. Translational Perspective In the present investigation, we provide evidence that human cardiac stromal cells, a major component of the non-contractile cellular fraction in the heart can be infected by SARS-CoV-2 in vitro, in direct relationship to the extent of ACE2 receptor expression. Our work also suggests that these cells, when exposed to the virus, can evolve toward inflammatory and fibrotic phenotypes independently of ACE2. In addition to describing a novel cellular target of SARS-CoV-2 in the human heart, our study generates new hypothesis on potential mechanisms underlying cardiac complications observed in COVID-19 patients.
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Affiliation(s)
- Alessandra Amendola
- Istituto Nazionale per le Malattie Infettive, Lazzaro Spallanzani, IRCCS, Rome, Italy
| | - Gloria Garoffolo
- Centro Cardiologico Monzino, IRCCS, Via C. Parea, 4, Milan, Italy.,DIMET Ph.D. program, Università di Milano-Bicocca, Italy
| | - Paola Songia
- Centro Cardiologico Monzino, IRCCS, Via C. Parea, 4, Milan, Italy
| | - Roberta Nardacci
- Istituto Nazionale per le Malattie Infettive, Lazzaro Spallanzani, IRCCS, Rome, Italy
| | - Silvia Ferrari
- Centro Cardiologico Monzino, IRCCS, Via C. Parea, 4, Milan, Italy.,Ph.D. program in Translational Medicine, Università degli studi di Pavia, Italy
| | - Giacomo Bernava
- Centro Cardiologico Monzino, IRCCS, Via C. Parea, 4, Milan, Italy
| | - Paola Canzano
- Centro Cardiologico Monzino, IRCCS, Via C. Parea, 4, Milan, Italy
| | | | - Francesca Colavita
- Istituto Nazionale per le Malattie Infettive, Lazzaro Spallanzani, IRCCS, Rome, Italy
| | - Concetta Castilletti
- Istituto Nazionale per le Malattie Infettive, Lazzaro Spallanzani, IRCCS, Rome, Italy
| | - Giuseppe Sberna
- Istituto Nazionale per le Malattie Infettive, Lazzaro Spallanzani, IRCCS, Rome, Italy
| | | | | | - Marco Agrifoglio
- Centro Cardiologico Monzino, IRCCS, Via C. Parea, 4, Milan, Italy.,Università degli studi di Milano, Milan, Italy
| | | | - Paolo Poggio
- Centro Cardiologico Monzino, IRCCS, Via C. Parea, 4, Milan, Italy
| | - Maurizio Pesce
- Centro Cardiologico Monzino, IRCCS, Via C. Parea, 4, Milan, Italy
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17
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Favere K, Bosman M, Klingel K, Heymans S, Van Linthout S, Delputte PL, De Sutter J, Heidbuchel H, Guns PJ. Toll-Like Receptors: Are They Taking a Toll on the Heart in Viral Myocarditis? Viruses 2021; 13:v13061003. [PMID: 34072044 PMCID: PMC8227433 DOI: 10.3390/v13061003] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2021] [Revised: 05/23/2021] [Accepted: 05/24/2021] [Indexed: 12/30/2022] Open
Abstract
Myocarditis is an inflammatory disease of the heart with viral infections being the most common aetiology. Its complex biology remains poorly understood and its clinical management is one of the most challenging in the field of cardiology. Toll-like receptors (TLRs), a family of evolutionarily conserved pattern recognition receptors, are increasingly known to be implicated in the pathophysiology of viral myocarditis. Their central role in innate and adaptive immune responses, and in the inflammatory reaction that ensues, indeed makes them prime candidates to profoundly affect every stage of the disease process. This review describes the pathogenesis and pathophysiology of viral myocarditis, and scrutinises the role of TLRs in every phase. We conclude with directions for future research in this field.
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Affiliation(s)
- Kasper Favere
- Laboratory of Physiopharmacology, GENCOR, University of Antwerp, 2610 Antwerp, Belgium; (M.B.); (P.-J.G.)
- Research Group Cardiovascular Diseases, GENCOR, University of Antwerp, 2610 Antwerp, Belgium;
- Department of Cardiology, Antwerp University Hospital, 2650 Antwerp, Belgium
- Department of Internal Medicine, Ghent University, 9000 Ghent, Belgium;
- Correspondence:
| | - Matthias Bosman
- Laboratory of Physiopharmacology, GENCOR, University of Antwerp, 2610 Antwerp, Belgium; (M.B.); (P.-J.G.)
| | - Karin Klingel
- Cardiopathology, Institute for Pathology, University Hospital Tuebingen, 72076 Tuebingen, Germany;
| | - Stephane Heymans
- Department of Cardiology, Maastricht University, 6229 ER Maastricht, The Netherlands;
- Centre for Molecular and Vascular Biology, KU Leuven, 3000 Leuven, Belgium
| | - Sophie Van Linthout
- BIH Center for Regenerative Therapies (BCRT), Berlin Institute of Health (BIH) at Charité, Universitätsmedizin Berlin, 10117 Berlin, Germany;
- German Centre for Cardiovascular Research (DZHK), Partner Site Berlin, 10785 Berlin, Germany
| | - Peter L. Delputte
- Laboratory of Microbiology, Parasitology and Hygiene, University of Antwerp, 2610 Antwerp, Belgium;
| | - Johan De Sutter
- Department of Internal Medicine, Ghent University, 9000 Ghent, Belgium;
| | - Hein Heidbuchel
- Research Group Cardiovascular Diseases, GENCOR, University of Antwerp, 2610 Antwerp, Belgium;
- Department of Cardiology, Antwerp University Hospital, 2650 Antwerp, Belgium
| | - Pieter-Jan Guns
- Laboratory of Physiopharmacology, GENCOR, University of Antwerp, 2610 Antwerp, Belgium; (M.B.); (P.-J.G.)
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18
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Knecht RS, Bucher CH, Van Linthout S, Tschöpe C, Schmidt-Bleek K, Duda GN. Mechanobiological Principles Influence the Immune Response in Regeneration: Implications for Bone Healing. Front Bioeng Biotechnol 2021; 9:614508. [PMID: 33644014 PMCID: PMC7907627 DOI: 10.3389/fbioe.2021.614508] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2020] [Accepted: 01/22/2021] [Indexed: 12/13/2022] Open
Abstract
A misdirected or imbalanced local immune composition is often one of the reasons for unsuccessful regeneration resulting in scarring or fibrosis. Successful healing requires a balanced initiation and a timely down-regulation of the inflammation for the re-establishment of a biologically and mechanically homeostasis. While biomaterial-based approaches to control local immune responses are emerging as potential new treatment options, the extent to which biophysical material properties themselves play a role in modulating a local immune niche response has so far been considered only occasionally. The communication loop between extracellular matrix, non-hematopoietic cells, and immune cells seems to be specifically sensitive to mechanical cues and appears to play a role in the initiation and promotion of a local inflammatory setting. In this review, we focus on the crosstalk between ECM and its mechanical triggers and how they impact immune cells and non-hematopoietic cells and their crosstalk during tissue regeneration. We realized that especially mechanosensitive receptors such as TRPV4 and PIEZO1 and the mechanosensitive transcription factor YAP/TAZ are essential to regeneration in various organ settings. This indicates novel opportunities for therapeutic approaches to improve tissue regeneration, based on the immune-mechanical principles found in bone but also lung, heart, and skin.
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Affiliation(s)
- Raphael S Knecht
- Julius Wolff Institute and Center for Musculoskeletal Surgery, Charité-Universitätsmedizin Berlin, Berlin, Germany
| | - Christian H Bucher
- Julius Wolff Institute and Center for Musculoskeletal Surgery, Charité-Universitätsmedizin Berlin, Berlin, Germany.,Berlin Institute of Health Center for Regenerative Therapies, Charité-Universitätsmedizin Berlin, Berlin, Germany
| | - Sophie Van Linthout
- Berlin Institute of Health Center for Regenerative Therapies, Charité-Universitätsmedizin Berlin, Berlin, Germany.,German Center for Cardiovascular Research (DZHK), Partner Site Berlin, Berlin, Germany
| | - Carsten Tschöpe
- Berlin Institute of Health Center for Regenerative Therapies, Charité-Universitätsmedizin Berlin, Berlin, Germany.,German Center for Cardiovascular Research (DZHK), Partner Site Berlin, Berlin, Germany.,Department of Cardiology, Charite'-Universitätsmedizin Berlin, Berlin, Germany
| | - Katharina Schmidt-Bleek
- Julius Wolff Institute and Center for Musculoskeletal Surgery, Charité-Universitätsmedizin Berlin, Berlin, Germany.,Berlin Institute of Health Center for Regenerative Therapies, Charité-Universitätsmedizin Berlin, Berlin, Germany
| | - Georg N Duda
- Julius Wolff Institute and Center for Musculoskeletal Surgery, Charité-Universitätsmedizin Berlin, Berlin, Germany.,Berlin Institute of Health Center for Regenerative Therapies, Charité-Universitätsmedizin Berlin, Berlin, Germany
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19
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Camici PG, Tschöpe C, Di Carli MF, Rimoldi O, Van Linthout S. Coronary microvascular dysfunction in hypertrophy and heart failure. Cardiovasc Res 2020; 116:806-816. [PMID: 31999329 DOI: 10.1093/cvr/cvaa023] [Citation(s) in RCA: 98] [Impact Index Per Article: 24.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/29/2019] [Revised: 12/05/2019] [Accepted: 01/23/2020] [Indexed: 12/12/2022] Open
Abstract
Left ventricular (LV) hypertrophy (LVH) is a growth in left myocardial mass mainly caused by increased cardiomyocyte size. LVH can be a physiological adaptation to physical exercise or a pathological condition either primary, i.e. genetic, or secondary to LV overload. Patients with both primary and secondary LVH have evidence of coronary microvascular dysfunction (CMD). The latter is mainly due to capillary rarefaction and adverse remodelling of intramural coronary arterioles due to medial wall thickening with an increased wall/lumen ratio. An important feature of this phenomenon is the diffuse nature of this remodelling, which generally affects the coronary microvessels in the whole of the left ventricle. Patients with LVH secondary to arterial hypertension can develop both heart failure with preserved ejection fraction (HFpEF) and heart failure with reduced ejection fraction (HFrEF). These patients can develop HFrEF via a 'direct pathway' with an interval myocardial infarction and also in its absence. On the other hand, patients can develop HFpEF that can then progress to HFrEF with or without interval myocardial infarction. A similar evolution towards LV dysfunction and both HFpEF and HFrEF can occur in patients with hypertrophic cardiomyopathy, the most common genetic cardiomyopathy with a phenotype characterized by massive LVH. In this review article, we will discuss both the experimental and clinical studies explaining the mechanisms responsible for CMD in LVH as well as the evidence linking CMD with HFpEF and HFrEF.
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Affiliation(s)
- Paolo G Camici
- Vita Salute University and San Raffaele Hospital, Milano, Italy
| | - Carsten Tschöpe
- Berlin Institute of Health Center for Regenerative Therapies (BCRT), Charité-Universitätsmedizin Berlin, Berlin, Germany.,German Center for Cardiovascular Research (DZHK), Partner Site Berlin, Berlin, Germany.,Department of Cardiology, Charité-Universitätsmedizin Berlin, Campus Virchow Klinikum, Berlin, Germany
| | - Marcelo F Di Carli
- Cardiovascular Imaging Program, Brigham and Women's Hospital, Harvard Medical School, Boston, MA, USA.,Department of Radiology, Brigham and Women's Hospital, Harvard Medical School, Boston, MA, USA.,Cardiovascular Division, Department of Medicine, Brigham and Women's Hospital, Harvard Medical School, Boston, MA, USA
| | - Ornella Rimoldi
- Vita Salute University and San Raffaele Hospital, Milano, Italy.,CNR IBFM, Segrate, Italy
| | - Sophie Van Linthout
- Berlin Institute of Health Center for Regenerative Therapies (BCRT), Charité-Universitätsmedizin Berlin, Berlin, Germany.,German Center for Cardiovascular Research (DZHK), Partner Site Berlin, Berlin, Germany
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20
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Abstract
Inflammatory cardiomyopathy, characterized by inflammatory cell infiltration into the myocardium and a high risk of deteriorating cardiac function, has a heterogeneous aetiology. Inflammatory cardiomyopathy is predominantly mediated by viral infection, but can also be induced by bacterial, protozoal or fungal infections as well as a wide variety of toxic substances and drugs and systemic immune-mediated diseases. Despite extensive research, inflammatory cardiomyopathy complicated by left ventricular dysfunction, heart failure or arrhythmia is associated with a poor prognosis. At present, the reason why some patients recover without residual myocardial injury whereas others develop dilated cardiomyopathy is unclear. The relative roles of the pathogen, host genomics and environmental factors in disease progression and healing are still under discussion, including which viruses are active inducers and which are only bystanders. As a consequence, treatment strategies are not well established. In this Review, we summarize and evaluate the available evidence on the pathogenesis, diagnosis and treatment of myocarditis and inflammatory cardiomyopathy, with a special focus on virus-induced and virus-associated myocarditis. Furthermore, we identify knowledge gaps, appraise the available experimental models and propose future directions for the field. The current knowledge and open questions regarding the cardiovascular effects associated with severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) infection are also discussed. This Review is the result of scientific cooperation of members of the Heart Failure Association of the ESC, the Heart Failure Society of America and the Japanese Heart Failure Society.
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21
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Laczko R, Csiszar K. Lysyl Oxidase (LOX): Functional Contributions to Signaling Pathways. Biomolecules 2020; 10:biom10081093. [PMID: 32708046 PMCID: PMC7465975 DOI: 10.3390/biom10081093] [Citation(s) in RCA: 53] [Impact Index Per Article: 13.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2020] [Revised: 07/12/2020] [Accepted: 07/13/2020] [Indexed: 12/12/2022] Open
Abstract
Cu-dependent lysyl oxidase (LOX) plays a catalytic activity-related, primary role in the assembly of the extracellular matrix (ECM), a dynamic structural and regulatory framework which is essential for cell fate, differentiation and communication during development, tissue maintenance and repair. LOX, additionally, plays both activity-dependent and independent extracellular, intracellular and nuclear roles that fulfill significant functions in normal tissues, and contribute to vascular, cardiac, pulmonary, dermal, placenta, diaphragm, kidney and pelvic floor disorders. LOX activities have also been recognized in glioblastoma, diabetic neovascularization, osteogenic differentiation, bone matrix formation, ligament remodeling, polycystic ovary syndrome, fetal membrane rupture and tumor progression and metastasis. In an inflammatory context, LOX plays a role in diminishing pluripotent mesenchymal cell pools which are relevant to the pathology of diabetes, osteoporosis and rheumatoid arthritis. Most of these conditions involve mechanisms with complex cell and tissue type-specific interactions of LOX with signaling pathways, not only as a regulatory target, but also as an active player, including LOX-mediated alterations of cell surface receptor functions and mutual regulatory activities within signaling loops. In this review, we aim to provide insight into the diverse ways in which LOX participates in signaling events, and explore the mechanistic details and functional significance of the regulatory and cross-regulatory interactions of LOX with the EGFR, PDGF, VEGF, TGF-β, mechano-transduction, inflammatory and steroid signaling pathways.
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22
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Tschöpe C, Van Linthout S, Jäger S, Arndt R, Trippel T, Müller I, Elsanhoury A, Rutschow S, Anker SD, Schultheiss HP, Pauschinger M, Spillmann F, Pappritz K. Modulation of the acute defence reaction by eplerenone prevents cardiac disease progression in viral myocarditis. ESC Heart Fail 2020; 7:2838-2852. [PMID: 32662949 PMCID: PMC7405199 DOI: 10.1002/ehf2.12887] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2020] [Revised: 06/04/2020] [Accepted: 06/24/2020] [Indexed: 12/19/2022] Open
Abstract
Aims Left ventricular (LV) dysfunction in viral myocarditis is attributed to myocardial inflammation and fibrosis, inducing acute and long‐time cardiac damage. Interventions are not established. On the basis of the link between inflammation, fibrosis, aldosterone, and extracellular matrix regulation, we aimed to investigate the effect of an early intervention with the mineralocorticoid receptor antagonist (MRA) eplerenone on cardiac remodelling in a murine model of persistent coxsackievirus B3 (CVB3)‐induced myocarditis. Methods and results SWR/J mice were infected with 5 × 104 plaque‐forming units of CVB3 (Nancy strain) and daily treated either with eplerenone (200 mg/kg body weight) or with placebo starting from Day 1. At Day 8 or 28 post infection, mice were haemodynamically characterized and subsequently sacrificed for immunohistological and molecular biology analyses. Eplerenone did not influence CVB3 load. Already at Day 8, 1.8‐fold (P < 0.05), 1.4‐fold (P < 0.05), 3.2‐fold (P < 0.01), and 2.1‐fold (P < 0.001) reduction in LV intercellular adhesion molecule 1 expression, presence of monocytes/macrophages, oxidative stress, and apoptosis, respectively, was observed in eplerenone‐treated vs. untreated CVB3‐infected mice. In vitro, eplerenone led to 1.4‐fold (P < 0.01) and 1.2‐fold (P < 0.01) less CVB3‐induced cardiomyocyte oxidative stress and apoptosis. Furthermore, collagen production was 1.1‐fold (P < 0.05) decreased in cardiac fibroblasts cultured with medium of eplerenone‐treated vs. untreated CVB3‐infected HL‐1 cardiomyocytes. These ameliorations were in vivo translated into prevention of cardiac fibrosis, as shown by 1.4‐fold (P < 0.01) and 2.1‐fold (P < 0.001) lower collagen content in the LV of eplerenone‐treated vs. untreated CVB3‐infected mice at Days 8 and 28, respectively. This resulted in an early and long‐lasting improvement of LV dimension and function, as indicated by reduced LV end‐systolic volume and end‐diastolic volume, and an increase in LV contractility (dP/dtmax) and LV relaxation (dP/dtmin), respectively (P < 0.05). Conclusions Early intervention with the MRA eplerenone modulates the acute host and defence reaction and prevents cardiac disease progression in experimental CVB3‐induced myocarditis without aggravation of viral load. The findings advocate for an initiation of therapy of viral myocarditis as early as possible, even before the onset of inflammation‐induced myocardial dysfunction. This may also have implications for coronavirus disease‐19 therapy.
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Affiliation(s)
- Carsten Tschöpe
- Berlin Institute of Health Center for Regenerative Therapies and Berlin-Brandenburg Center for Regenerative Therapies (BCRT), Charité-Universitätsmedizin Berlin, Berlin, Germany.,German Center for Cardiovascular Research (DZHK), Partner site Berlin, Berlin, Germany.,Department of Cardiology, Charité-Universitätsmedizin Berlin, Campus Virchow Klinikum (CVK), Berlin, Germany
| | - Sophie Van Linthout
- Berlin Institute of Health Center for Regenerative Therapies and Berlin-Brandenburg Center for Regenerative Therapies (BCRT), Charité-Universitätsmedizin Berlin, Berlin, Germany.,German Center for Cardiovascular Research (DZHK), Partner site Berlin, Berlin, Germany
| | - Sebastian Jäger
- Department of Cardiology, Alexianer Hospital Hedwigshöhe, Berlin, Germany
| | - Robert Arndt
- Department of Emergency Medicine, Charité-Universitätsmedizin Berlin, Campus Benjamin Franklin (CBF), Berlin, Germany
| | - Tobias Trippel
- Department of Cardiology, Charité-Universitätsmedizin Berlin, Campus Virchow Klinikum (CVK), Berlin, Germany
| | - Irene Müller
- Berlin Institute of Health Center for Regenerative Therapies and Berlin-Brandenburg Center for Regenerative Therapies (BCRT), Charité-Universitätsmedizin Berlin, Berlin, Germany.,German Center for Cardiovascular Research (DZHK), Partner site Berlin, Berlin, Germany
| | - Ahmed Elsanhoury
- Berlin Institute of Health Center for Regenerative Therapies and Berlin-Brandenburg Center for Regenerative Therapies (BCRT), Charité-Universitätsmedizin Berlin, Berlin, Germany.,German Center for Cardiovascular Research (DZHK), Partner site Berlin, Berlin, Germany
| | - Susanne Rutschow
- Department of Cardiology, Angiology Johanniter-Kliniken, Stendal, Germany
| | - Stefan D Anker
- Berlin Institute of Health Center for Regenerative Therapies and Berlin-Brandenburg Center for Regenerative Therapies (BCRT), Charité-Universitätsmedizin Berlin, Berlin, Germany.,German Center for Cardiovascular Research (DZHK), Partner site Berlin, Berlin, Germany.,Department of Cardiology, Charité-Universitätsmedizin Berlin, Campus Virchow Klinikum (CVK), Berlin, Germany
| | | | - Matthias Pauschinger
- Department of Cardiology, Paracelsus University, Klinikum Nürnberg, Nürnberg, Germany
| | - Frank Spillmann
- Department of Cardiology, Charité-Universitätsmedizin Berlin, Campus Virchow Klinikum (CVK), Berlin, Germany
| | - Kathleen Pappritz
- Berlin Institute of Health Center for Regenerative Therapies and Berlin-Brandenburg Center for Regenerative Therapies (BCRT), Charité-Universitätsmedizin Berlin, Berlin, Germany.,German Center for Cardiovascular Research (DZHK), Partner site Berlin, Berlin, Germany
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23
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Steffens S, Van Linthout S, Sluijter JPG, Tocchetti CG, Thum T, Madonna R. Stimulating pro-reparative immune responses to prevent adverse cardiac remodelling: consensus document from the joint 2019 meeting of the ESC Working Groups of cellular biology of the heart and myocardial function. Cardiovasc Res 2020; 116:1850-1862. [DOI: 10.1093/cvr/cvaa137] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/22/2020] [Revised: 03/31/2020] [Accepted: 05/05/2020] [Indexed: 12/14/2022] Open
Abstract
Abstract
Cardiac injury may have multiple causes, including ischaemic, non-ischaemic, autoimmune, and infectious triggers. Independent of the underlying pathophysiology, cardiac tissue damage induces an inflammatory response to initiate repair processes. Immune cells are recruited to the heart to remove dead cardiomyocytes, which is essential for cardiac healing. Insufficient clearance of dying cardiomyocytes after myocardial infarction (MI) has been shown to promote unfavourable cardiac remodelling, which may result in heart failure (HF). Although immune cells are integral key players of cardiac healing, an unbalanced or unresolved immune reaction aggravates tissue damage that triggers maladaptive remodelling and HF. Neutrophils and macrophages are involved in both, inflammatory as well as reparative processes. Stimulating the resolution of cardiac inflammation seems to be an attractive therapeutic strategy to prevent adverse remodelling. Along with numerous experimental studies, the promising outcomes from recent clinical trials testing canakinumab or colchicine in patients with MI are boosting the interest in novel therapies targeting inflammation in cardiovascular disease patients. The aim of this review is to discuss recent experimental studies that provide new insights into the signalling pathways and local regulators within the cardiac microenvironment promoting the resolution of inflammation and tissue regeneration. We will cover ischaemia- and non-ischaemic-induced as well as infection-related cardiac remodelling and address potential targets to prevent adverse cardiac remodelling.
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Affiliation(s)
- Sabine Steffens
- Institute for Cardiovascular Prevention (IPEK), Ludwig-Maximilians-Universität, Munich, Germany
- German Centre for Cardiovascular Research (DZHK), partner site Munich Heart Alliance, Munich, Germany
| | - Sophie Van Linthout
- Berlin Institute of Health Center for Regenerative Therapies (BCRT), Charité, University Medicine Berlin, Berlin, Germany
- German Centre for Cardiovascular Research (DZHK), partner site Berlin, Germany
| | - Joost P G Sluijter
- Department of Cardiology, Laboratory of Experimental Cardiology, University Medical Center Utrecht, Utrecht, the Netherlands
- Regenerative Medicine Center, Circulatory Health Laboratory, University Medical Center Utrecht, University Utrecht, Utrecht, The Netherlands
| | - Carlo Gabriele Tocchetti
- Department of Translational Medical Sciences and Interdepartmental Center of Clinical and Translational Sciences (CIRCET), Federico II University, Naples, Italy
| | - Thomas Thum
- Institute for Molecular and Translational Therapeutic Strategies (IMTTS), Hannover Medical School, Hannover, Germany
| | - Rosalinda Madonna
- Institute of Cardiology, University of Pisa, Via Paradisa, Pisa 56124, Italy
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24
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Okyere AD, Tilley DG. Leukocyte-Dependent Regulation of Cardiac Fibrosis. Front Physiol 2020; 11:301. [PMID: 32322219 PMCID: PMC7156539 DOI: 10.3389/fphys.2020.00301] [Citation(s) in RCA: 30] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/25/2019] [Accepted: 03/17/2020] [Indexed: 12/24/2022] Open
Abstract
Cardiac fibrosis begins as an intrinsic response to injury or ageing that functions to preserve the tissue from further damage. Fibrosis results from activated cardiac myofibroblasts, which secrete extracellular matrix (ECM) proteins in an effort to replace damaged tissue; however, excessive ECM deposition leads to pathological fibrotic remodeling. At this extent, fibrosis gravely disturbs myocardial compliance, and ultimately leads to adverse outcomes like heart failure with heightened mortality. As such, understanding the complexity behind fibrotic remodeling has been a focal point of cardiac research in recent years. Resident cardiac fibroblasts and activated myofibroblasts have been proven integral to the fibrotic response; however, several findings point to additional cell types that may contribute to the development of pathological fibrosis. For one, leukocytes expand in number after injury and exhibit high plasticity, thus their distinct role(s) in cardiac fibrosis is an ongoing and controversial field of study. This review summarizes current findings, focusing on both direct and indirect leukocyte-mediated mechanisms of fibrosis, which may provide novel targeted strategies against fibrotic remodeling.
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Affiliation(s)
- Ama Dedo Okyere
- Center for Translational Medicine, Lewis Katz School of Medicine, Temple University, Philadelphia, PA, United States
| | - Douglas G Tilley
- Center for Translational Medicine, Lewis Katz School of Medicine, Temple University, Philadelphia, PA, United States
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Impaired Autophagy in the Fibroblasts by Titanium Particles Increased the Release of CX3CL1 and Promoted the Chemotactic Migration of Monocytes. Inflammation 2019; 43:673-685. [DOI: 10.1007/s10753-019-01149-0] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
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Brand CS, Lighthouse JK, Trembley MA. Protective transcriptional mechanisms in cardiomyocytes and cardiac fibroblasts. J Mol Cell Cardiol 2019; 132:1-12. [PMID: 31042488 DOI: 10.1016/j.yjmcc.2019.04.023] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/12/2019] [Revised: 04/19/2019] [Accepted: 04/22/2019] [Indexed: 12/13/2022]
Abstract
Heart failure is the leading cause of morbidity and mortality worldwide. Several lines of evidence suggest that physical activity and exercise can pre-condition the heart to improve the response to acute cardiac injury such as myocardial infarction or ischemia/reperfusion injury, preventing the progression to heart failure. It is becoming more apparent that cardioprotection is a concerted effort between multiple cell types and converging signaling pathways. However, the molecular mechanisms of cardioprotection are not completely understood. What is clear is that the mechanisms underlying this protection involve acute activation of transcriptional activators and their corresponding gene expression programs. Here, we review the known stress-dependent transcriptional programs that are activated in cardiomyocytes and cardiac fibroblasts to preserve function in the adult heart after injury. Focus is given to prominent transcriptional pathways such as mechanical stress or reactive oxygen species (ROS)-dependent activation of myocardin-related transcription factors (MRTFs) and transforming growth factor beta (TGFβ), and gene expression that positively regulates protective PI3K/Akt signaling. Together, these pathways modulate both beneficial and pathological responses to cardiac injury in a cell-specific manner.
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Affiliation(s)
- Cameron S Brand
- Department of Pharmacology, School of Medicine, University of California - San Diego, 9500 Gilman Drive, Biomedical Sciences Building, La Jolla, CA 92093, USA.
| | - Janet K Lighthouse
- Aab Cardiovascular Research Institute, University of Rochester School of Medicine and Dentistry, 601 Elmwood Avenue, Box CVRI, Rochester, NY 14624, USA.
| | - Michael A Trembley
- Department of Cardiology, Boston Children's Hospital, 300 Longwood Avenue, Boston, MA 02115, USA.
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Mouton AJ, Ma Y, Rivera Gonzalez OJ, Daseke MJ, Flynn ER, Freeman TC, Garrett MR, DeLeon-Pennell KY, Lindsey ML. Fibroblast polarization over the myocardial infarction time continuum shifts roles from inflammation to angiogenesis. Basic Res Cardiol 2019; 114:6. [PMID: 30635789 PMCID: PMC6329742 DOI: 10.1007/s00395-019-0715-4] [Citation(s) in RCA: 109] [Impact Index Per Article: 21.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/20/2018] [Accepted: 01/04/2019] [Indexed: 12/11/2022]
Abstract
Cardiac fibroblasts are the major producers of extracellular matrix (ECM) to form infarct scar. We hypothesized that fibroblasts undergo a spectrum of phenotype states over the course of myocardial infarction (MI) from early onset to scar formation. Fibroblasts were isolated from the infarct region of C57BL/6J male mice (3-6 months old, n = 60) at days 0 (no MI control) and 1, 3, or 7 after MI. Whole transcriptome analysis was performed by RNA-sequencing. Of the genes sequenced, 3371 were differentially expressed after MI. Enrichment analysis revealed that MI day 1 fibroblasts displayed pro-inflammatory, leukocyte-recruiting, pro-survival, and anti-migratory phenotype through Tnfrsf9 and CD137 signaling. MI day 3 fibroblasts had a proliferative, pro-fibrotic, and pro-angiogenic profile with elevated Il4ra signaling. MI day 7 fibroblasts showed an anti-angiogenic homeostatic-like myofibroblast profile and with a step-wise increase in Acta2 expression. MI day 7 fibroblasts relied on Pik3r3 signaling to mediate Tgfb1 effects and Fgfr2 to regulate PI3K signaling. In vitro, the day 3 MI fibroblast secretome stimulated angiogenesis, while day 7 MI fibroblast secretome repressed angiogenesis through Thbs1 signaling. Our results reveal novel mechanisms for fibroblasts in expressing pro-inflammatory molecules and regulating angiogenesis following MI.
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Affiliation(s)
- Alan J Mouton
- Department of Physiology and Biophysics, Mississippi Center for Heart Research, University of Mississippi Medical Center, 2500 North State St, Jackson, MS, 39216-4505, USA
| | - Yonggang Ma
- Department of Physiology and Biophysics, Mississippi Center for Heart Research, University of Mississippi Medical Center, 2500 North State St, Jackson, MS, 39216-4505, USA
| | - Osvaldo J Rivera Gonzalez
- Department of Physiology and Biophysics, Mississippi Center for Heart Research, University of Mississippi Medical Center, 2500 North State St, Jackson, MS, 39216-4505, USA
| | - Michael J Daseke
- Department of Physiology and Biophysics, Mississippi Center for Heart Research, University of Mississippi Medical Center, 2500 North State St, Jackson, MS, 39216-4505, USA
| | - Elizabeth R Flynn
- Department of Physiology and Biophysics, Mississippi Center for Heart Research, University of Mississippi Medical Center, 2500 North State St, Jackson, MS, 39216-4505, USA
| | - Tom C Freeman
- The Roslin Institute, University of Edinburgh, Easter Bush, Midlothian, EH25 9RG, UK
| | - Michael R Garrett
- Department of Pharmacology and Toxicology, University of Mississippi Medical Center, Jackson, MS, 39216, USA
| | - Kristine Y DeLeon-Pennell
- Department of Physiology and Biophysics, Mississippi Center for Heart Research, University of Mississippi Medical Center, 2500 North State St, Jackson, MS, 39216-4505, USA
- Research Service, G.V. (Sonny) Montgomery Veterans Affairs Medical Center, Jackson, MS, 39216, USA
| | - Merry L Lindsey
- Department of Physiology and Biophysics, Mississippi Center for Heart Research, University of Mississippi Medical Center, 2500 North State St, Jackson, MS, 39216-4505, USA.
- Research Service, G.V. (Sonny) Montgomery Veterans Affairs Medical Center, Jackson, MS, 39216, USA.
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Thankam FG, Palanikumar G, Fitzgibbons RJ, Agrawal DK. Molecular Mechanisms and Potential Therapeutic Targets in Incisional Hernia. J Surg Res 2018; 236:134-143. [PMID: 30694748 DOI: 10.1016/j.jss.2018.11.037] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2018] [Revised: 09/27/2018] [Accepted: 11/20/2018] [Indexed: 12/21/2022]
Abstract
The pathophysiology underlying the formation, progression, and surgical healing of incisional hernia (IH) that develops as a major complication associated with abdominal laparotomy is poorly understood. The proposed mechanisms include the switch of collagen phenotype and the proliferation of abnormal fibroblasts after surgery. The focus of this article was to critically review the cellular, biochemical, and potential molecular events associated with the development of IH. The disturbance in collagen homeostasis with alterations in the expression of collagen subtypes, including type 1, type 3, type 4, and type 5, and impairment in the transdifferentiation of fibroblasts to myofibroblasts are discussed. The phenotype switch of wound-repair fibroblasts results in mechanically compromised extracellular matrix that triggers the proliferation of abnormal fibroblasts. High-mobility group box 1 could be involved in wound progression, whereas signaling events mediated by tumor necrosis factor β1, connective tissue growth factor, lysyl oxidase, and hypoxia-inducible factor 1 play significant role in the wound healing response. Thus, the ratio of tumor necrosis factorβ1: high-mobility group box 1 could be a critical determinant of the underlying pathology. Potential target sites for therapeutic intervention in the management of IH are recognized.
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Affiliation(s)
- Finosh G Thankam
- Departments of Clinical and Translational Science and Surgery, Creighton University School of Medicine, Omaha, Nebraska
| | - Gunasekar Palanikumar
- Departments of Clinical and Translational Science and Surgery, Creighton University School of Medicine, Omaha, Nebraska
| | - Robert J Fitzgibbons
- Departments of Clinical and Translational Science and Surgery, Creighton University School of Medicine, Omaha, Nebraska
| | - Devendra K Agrawal
- Departments of Clinical and Translational Science and Surgery, Creighton University School of Medicine, Omaha, Nebraska.
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