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Chen Y, Weng Y, Huang J, Li Q, Sun B, Wang H, Wang Z. Leptin receptor (+) stromal cells respond to periodontitis and attenuate alveolar bone repair via CCRL2-mediated Wnt inhibition. J Bone Miner Res 2024; 39:611-626. [PMID: 38477792 DOI: 10.1093/jbmr/zjae036] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/20/2023] [Revised: 02/14/2024] [Accepted: 02/26/2024] [Indexed: 03/14/2024]
Abstract
The impaired bone healing in tooth extraction sockets due to periodontitis presents a major obstacle to restoring oral health. The mechanisms regulating the osteogenic capacity of jawbone-derived stromal cells in the periodontitis microenvironment remain elusive. Leptin receptor (LepR) expressing stromal cells, which largely overlap with Cxcl12-abundant reticular (CAR) cells in bone tissue, rapidly proliferate and differentiate into bone-forming cells during extraction socket healing to support alveolar bone repair. In this study, we identify that CCRL2 is significantly expressed and inhibits osteogenesis in LepR+/CAR cells of alveolar bones with periodontitis. The Ccrl2-KO mice exhibit significant improvements in bone healing in extraction sockets with periodontitis. Specifically, the binding of CCRL2 to SFRP1 on the surface of LepR+/CAR cells can amplify the suppressive effect of SFRP1 on Wnt signaling under inflammation, thus hindering the osteogenic differentiation of LepR+/CAR cells and resulting in poor bone healing in extraction sockets with periodontitis. Together, we clarify that the CCRL2 receptor of LepR+/CAR cells can respond to periodontitis and crosstalk with Wnt signaling to deteriorate extraction socket healing.
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Affiliation(s)
- Yongliang Chen
- Department of Oral Implantology and Department of Oral and Maxillofacial Surgery, Stomatological Hospital and Dental School of Tongji University, Shanghai Engineering Research Center of Tooth Restoration and Regeneration, Shanghai 200072, China
| | - Yuteng Weng
- Department of Oral Implantology and Department of Oral and Maxillofacial Surgery, Stomatological Hospital and Dental School of Tongji University, Shanghai Engineering Research Center of Tooth Restoration and Regeneration, Shanghai 200072, China
| | - Jie Huang
- Department of Oral Implantology and Department of Oral and Maxillofacial Surgery, Stomatological Hospital and Dental School of Tongji University, Shanghai Engineering Research Center of Tooth Restoration and Regeneration, Shanghai 200072, China
| | - Qin Li
- Department of Oral Implantology and Department of Oral and Maxillofacial Surgery, Stomatological Hospital and Dental School of Tongji University, Shanghai Engineering Research Center of Tooth Restoration and Regeneration, Shanghai 200072, China
| | - Bin Sun
- Department of Oral Implantology and Department of Oral and Maxillofacial Surgery, Stomatological Hospital and Dental School of Tongji University, Shanghai Engineering Research Center of Tooth Restoration and Regeneration, Shanghai 200072, China
| | - Haicheng Wang
- Department of Oral Implantology and Department of Oral and Maxillofacial Surgery, Stomatological Hospital and Dental School of Tongji University, Shanghai Engineering Research Center of Tooth Restoration and Regeneration, Shanghai 200072, China
| | - Zuolin Wang
- Department of Oral Implantology and Department of Oral and Maxillofacial Surgery, Stomatological Hospital and Dental School of Tongji University, Shanghai Engineering Research Center of Tooth Restoration and Regeneration, Shanghai 200072, China
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Ju S, Lim L, Wi K, Park C, Ki YJ, Choi DH, Song H. LRP5 Regulates HIF-1α Stability via Interaction with PHD2 in Ischemic Myocardium. Int J Mol Sci 2021; 22:ijms22126581. [PMID: 34205318 PMCID: PMC8235097 DOI: 10.3390/ijms22126581] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2021] [Revised: 06/12/2021] [Accepted: 06/16/2021] [Indexed: 12/22/2022] Open
Abstract
Low-density lipoprotein receptor-related protein 5 (LRP5) has been studied as a co-receptor for Wnt/β-catenin signaling. However, its role in the ischemic myocardium is largely unknown. Here, we show that LRP5 may act as a negative regulator of ischemic heart injury via its interaction with prolyl hydroxylase 2 (PHD2), resulting in hypoxia-inducible factor-1α (HIF-1α) degradation. Overexpression of LRP5 in cardiomyocytes promoted hypoxia-induced apoptotic cell death, whereas LRP5-silenced cardiomyocytes were protected from hypoxic insult. Gene expression analysis (mRNA-seq) demonstrated that overexpression of LRP5 limited the expression of HIF-1α target genes. LRP5 promoted HIF-1α degradation, as evidenced by the increased hydroxylation and shorter stability of HIF-1α under hypoxic conditions through the interaction between LRP5 and PHD2. Moreover, the specific phosphorylation of LRP5 at T1492 and S1503 is responsible for enhancing the hydroxylation activity of PHD2, resulting in HIF-1α degradation, which is independent of Wnt/β-catenin signaling. Importantly, direct myocardial delivery of adenoviral constructs, silencing LRP5 in vivo, significantly improved cardiac function in infarcted rat hearts, suggesting the potential value of LRP5 as a new target for ischemic injury treatment.
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Affiliation(s)
- Sujin Ju
- Department of Biochemistry and Molecular Biology, Chosun University School of Medicine, Gwangju 61452, Korea; (S.J.); (K.W.)
| | - Leejin Lim
- Cancer Mutation Research Center, Chosun University, Gwangju 61452, Korea;
| | - Kwanhwan Wi
- Department of Biochemistry and Molecular Biology, Chosun University School of Medicine, Gwangju 61452, Korea; (S.J.); (K.W.)
| | - Changwon Park
- Department of Molecular & Cellular Physiology, Louisiana State University Health Sciences Center, Shreveport, LA 71103, USA;
| | - Young-Jae Ki
- Department of Internal Medicine, Chosun University School of Medicine, Gwangju 61452, Korea; (Y.-J.K.); (D.-H.C.)
| | - Dong-Hyun Choi
- Department of Internal Medicine, Chosun University School of Medicine, Gwangju 61452, Korea; (Y.-J.K.); (D.-H.C.)
| | - Heesang Song
- Department of Biochemistry and Molecular Biology, Chosun University School of Medicine, Gwangju 61452, Korea; (S.J.); (K.W.)
- Correspondence: ; Tel.: +82-62-230-6290
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Abstract
Cardiovascular disease (CVD) is still a factor of mortality in the whole world. Through canonical and noncanonical pathways and with different receptors, the Wnt/β-catenin signaling pathway plays an essential role in response to heart injuries. Wnt regulates the mobilization and proliferation of cells in endothelium and epicardium in an infarcted heart. Therefore, with its profibrotic effects as well as its antagonism with other proteins, Wnt/β-catenin signaling pathway leads to beneficial effects on fibrosis and cardiac remodeling in myocardium. In addition, Wnt increases the proliferation and differentiation of cardiac progenitors in an ischemic heart. Complex interactions and dual activity of Wnt, the changes in its expression, and mutations that can change its activity during heart development have an adverse effect on cardiac myocardium after injury. However, targeting the Wnt in myocardium with cellular and molecular pathways can be suggested to improve and repair ischemic heart. Given these challenges, in this review article, we deal with the role of Wnt/β-catenin signaling pathway as well as its interactions with other cells and molecules in an ischemic myocardium.
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Su Q, Lv XW, Sun YH, Ye ZL, Kong BH, Qin ZB. MicroRNA-494 Inhibits the LRG1 Expression to Induce Proliferation and Migration of VECs in Rats following Myocardial Infarction. MOLECULAR THERAPY. NUCLEIC ACIDS 2019; 18:110-122. [PMID: 31541797 PMCID: PMC6796686 DOI: 10.1016/j.omtn.2019.08.007] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/19/2018] [Revised: 07/15/2019] [Accepted: 08/07/2019] [Indexed: 12/16/2022]
Abstract
Myocardial infarction (MI) is a life-threatening cardiac event that results in extreme damage to the heart muscle. The Wnt signaling pathway has been implicated in the development of heart diseases. Hence, the current study aimed to investigate the role of microRNA (miRNA) in association with the Wnt signaling pathway to identify potential candidates for MI therapy. Differentially expressed miRNAs associated with MI occurrence were screened, and miR-494 was selected for subsequent experiments. Sprague-Dawley rats were included to establish a MI model via intraperitoneal injection of 0.1 mg/kg atropine sulfate and 40 mg/kg pentobarbital sodium. Then, the interaction between miR-494 and LRG1 was identified. The effect of miR-494 on expression of the Wnt signaling pathway-related genes, proliferation, migration, and invasion ability of fibroblasts and vascular endothelial cells (VECs) was subsequently evaluated through a series of gain- and loss-of-function experiments. The results revealed that miR-494 was poorly expressed and LRG1 was highly expressed in MI rats. miR-494 targets and downregulates LRG1, which resulted in the inactivation of the Wnt signaling pathway and promoted proliferation, migration, and invasion ability of fibroblasts and VECs. In conclusion, this study provided evidence suggesting that overexpressed miR-494 could potentially promote the proliferation, migration, and invasion of fibroblasts and VECs in MI through the inactivation of the Wnt signaling pathway by binding to LRG1.
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Affiliation(s)
- Qiang Su
- Department of Cardiology, Affiliated Hospital of Guilin Medical University, Guilin 541001, P.R. China.
| | - Xiang-Wei Lv
- Department of Cardiology, Affiliated Hospital of Guilin Medical University, Guilin 541001, P.R. China
| | - Yu-Han Sun
- Department of Cardiology, The First Affiliated Hospital of Guangxi Medical University, Nanning 530021, P.R. China
| | - Zi-Liang Ye
- Department of Cardiology, The First Affiliated Hospital of Guangxi Medical University, Nanning 530021, P.R. China
| | - Bing-Hui Kong
- Department of Cardiology, The First Affiliated Hospital of Guangxi Medical University, Nanning 530021, P.R. China
| | - Zhen-Bai Qin
- Department of Cardiology, The First Affiliated Hospital of Guangxi Medical University, Nanning 530021, P.R. China
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Gupta S, Li L. The role of Thymosin β4 in angiotensin II-induced cardiomyocytes growth. Expert Opin Biol Ther 2019; 18:105-110. [PMID: 30063846 DOI: 10.1080/14712598.2018.1494718] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
Abstract
INTRODUCTION Thymosin beta-4 (Tβ4) is an actin sequestering protein and is furthermore involved in diverse biological processes including cell proliferation, differentiation, wound healing, stem- or progenitor cell differentiation, and modulates inflammatory mediators. Tβ4 also attenuates fibrosis. However, the role of Tβ4 in cardiomyocytes hypertrophy is unknown. AREAS COVERED In this review, we will discuss the role of Tβ4 in cardiac remodeling that specifically includes cardiac hypertrophy and fibrosis only. Our review will further cover a new signaling pathway, the wingless and integrated-1 (Wnt) pathway in cardiac remodeling. In rat neonatal and adult cardiomyocytes stimulated with angiotensin II (Ang II), we showed that Tβ4 has the ability to reduce cell sizes, attenuate hypertrophy marker genes expression, along with a panel of WNT-associated gene expressions induced by Ang II. Selected target gene WNT1-inducible-signaling pathway protein 1 (WISP-1) was identified by Tβ4. Data further confirmed that WISP-1 overexpression promoted cardiomyocytes growth and was reversed by Tβ4 pretreatment. EXPERT OPINION Our data suggested that Tβ4 protects cardiomyocytes from hypertrophic response by targeting WISP-1. The new role of Tβ4 in cardiac hypertrophy advances our understanding, and the mechanism of action of Tβ4 may provide a solid foundation for the treatment of cardiac disease.
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Affiliation(s)
- Sudhiranjan Gupta
- a Department of Medical Physiology , Texas A&M University; Central Texas Veterans Health Care System , Temple , TX , USA
| | - Li Li
- a Department of Medical Physiology , Texas A&M University; Central Texas Veterans Health Care System , Temple , TX , USA
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Meyer IS, Jungmann A, Dieterich C, Zhang M, Lasitschka F, Werkmeister S, Haas J, Müller OJ, Boutros M, Nahrendorf M, Katus HA, Hardt SE, Leuschner F. The cardiac microenvironment uses non-canonical WNT signaling to activate monocytes after myocardial infarction. EMBO Mol Med 2018; 9:1279-1293. [PMID: 28774883 PMCID: PMC5582413 DOI: 10.15252/emmm.201707565] [Citation(s) in RCA: 48] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/04/2022] Open
Abstract
A disturbed inflammatory response following myocardial infarction (MI) is associated with poor prognosis and increased tissue damage. Monocytes are key players in healing after MI, but little is known about the role of the cardiac niche in monocyte activation. This study investigated microenvironment‐dependent changes in inflammatory monocytes after MI. RNA sequencing analysis of murine Ly6Chigh monocytes on day 3 after MI revealed differential regulation depending on location. Notably, the local environment strongly impacted components of the WNT signaling cascade. Analysis of WNT modulators revealed a strong upregulation of WNT Inhibitory Factor 1 (WIF1) in cardiomyocytes—but not fibroblasts or endothelial cells—upon hypoxia. Compared to wild‐type (WT) littermates, WIF1 knockout mice showed severe adverse remodeling marked by increased scar size and reduced ejection fraction 4 weeks after MI. While FACS analysis on day 1 after MI revealed no differences in neutrophil numbers, the hearts of WIF1 knockouts contained significantly more inflammatory monocytes than hearts from WT animals. Next, we induced AAV‐mediated cardiomyocyte‐specific WIF1 overexpression, which attenuated the monocyte response and improved cardiac function after MI, as compared to control‐AAV‐treated animals. Finally, WIF1 overexpression in isolated cardiomyocytes limited the activation of non‐canonical WNT signaling and led to reduced IL‐1β and IL‐6 expression in monocytes/macrophages. Taken together, we investigated the cardiac microenvironment's interaction with recruited monocytes after MI and identified a novel mechanism of monocyte activation. The local initiation of non‐canonical WNT signaling shifts the accumulating myeloid cells toward a pro‐inflammatory state and impacts healing after myocardial infarction.
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Affiliation(s)
- Ingmar Sören Meyer
- Department of Medicine III, University of Heidelberg, Heidelberg, Germany.,DZHK (German Centre for Cardiovascular Research), Partnersite, Heidelberg/Mannheim, Germany
| | - Andreas Jungmann
- Department of Medicine III, University of Heidelberg, Heidelberg, Germany
| | - Christoph Dieterich
- Department of Medicine III, University of Heidelberg, Heidelberg, Germany.,DZHK (German Centre for Cardiovascular Research), Partnersite, Heidelberg/Mannheim, Germany
| | - Min Zhang
- Department of Medicine III, University of Heidelberg, Heidelberg, Germany
| | - Felix Lasitschka
- Institute of Pathology, University of Heidelberg, Heidelberg, Germany.,Tissue Bank of the National Center for Tumor Diseases (NCT), Heidelberg, Germany
| | - Susann Werkmeister
- Department of Medicine III, University of Heidelberg, Heidelberg, Germany
| | - Jan Haas
- Department of Medicine III, University of Heidelberg, Heidelberg, Germany.,DZHK (German Centre for Cardiovascular Research), Partnersite, Heidelberg/Mannheim, Germany
| | - Oliver J Müller
- Department of Medicine III, University of Heidelberg, Heidelberg, Germany.,DZHK (German Centre for Cardiovascular Research), Partnersite, Heidelberg/Mannheim, Germany
| | - Michael Boutros
- DZHK (German Centre for Cardiovascular Research), Partnersite, Heidelberg/Mannheim, Germany.,Division Signaling and Functional Genomics, German Cancer Research Center (DKFZ) and Heidelberg University, Heidelberg, Germany
| | - Matthias Nahrendorf
- Center for Systems Biology, Massachusetts General Hospital and Harvard Medical School, Boston, MA, USA
| | - Hugo A Katus
- Department of Medicine III, University of Heidelberg, Heidelberg, Germany.,DZHK (German Centre for Cardiovascular Research), Partnersite, Heidelberg/Mannheim, Germany
| | - Stefan E Hardt
- Department of Medicine III, University of Heidelberg, Heidelberg, Germany
| | - Florian Leuschner
- Department of Medicine III, University of Heidelberg, Heidelberg, Germany .,DZHK (German Centre for Cardiovascular Research), Partnersite, Heidelberg/Mannheim, Germany
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7
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Yu J, Seldin MM, Fu K, Li S, Lam L, Wang P, Wang Y, Huang D, Nguyen TL, Wei B, Kulkarni RP, Di Carlo D, Teitell M, Pellegrini M, Lusis AJ, Deb A. Topological Arrangement of Cardiac Fibroblasts Regulates Cellular Plasticity. Circ Res 2018; 123:73-85. [PMID: 29691232 DOI: 10.1161/circresaha.118.312589] [Citation(s) in RCA: 36] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/19/2018] [Revised: 04/17/2018] [Accepted: 04/22/2018] [Indexed: 01/03/2023]
Abstract
RATIONALE Cardiac fibroblasts do not form a syncytium but reside in the interstitium between myocytes. This topological relationship between fibroblasts and myocytes is maintained throughout postnatal life until an acute myocardial injury occurs, when fibroblasts are recruited to, proliferate and aggregate in the region of myocyte necrosis. The accumulation or aggregation of fibroblasts in the area of injury thus represents a unique event in the life cycle of the fibroblast, but little is known about how changes in the topological arrangement of fibroblasts after cardiac injury affect fibroblast function. OBJECTIVE The objective of the study was to investigate how changes in topological states of cardiac fibroblasts (such as after cardiac injury) affect cellular phenotype. METHODS AND RESULTS Using 2 and 3-dimensional (2D versus 3D) culture conditions, we show that simple aggregation of cardiac fibroblasts is sufficient by itself to induce genome-wide changes in gene expression and chromatin remodeling. Remarkably, gene expression changes are reversible after the transition from a 3D back to 2D state demonstrating a topological regulation of cellular plasticity. Genes induced by fibroblast aggregation are strongly associated and predictive of adverse cardiac outcomes and remodeling in mouse models of cardiac hypertrophy and failure. Using solvent-based tissue clearing techniques to create optically transparent cardiac scar tissue, we show that fibroblasts in the region of dense scar tissue express markers that are induced by fibroblasts in the 3D conformation. Finally, using live cell interferometry, a quantitative phase microscopy technique to detect absolute changes in single cell biomass, we demonstrate that conditioned medium collected from fibroblasts in 3D conformation compared with that from a 2D state significantly increases cardiomyocyte cell hypertrophy. CONCLUSIONS Taken together, these findings demonstrate that simple topological changes in cardiac fibroblast organization are sufficient to induce chromatin remodeling and global changes in gene expression with potential functional consequences for the healing heart.
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Affiliation(s)
- Jingyi Yu
- From the Division of Cardiology, Department of Medicine (J.Y., M.M.S., S.L., P.W., Y.W., A.J.L., A.D.).,Cardiovascular Research Laboratory (J.Y., M.M.S., S.L., P.W., Y.W., A.J.L., A.D.).,Department of Molecular, Cell, and Developmental Biology (J.Y., K.F., S.L., L.L., P.W., Y.W., M.P., A.D.).,Eli & Edythe Broad Center of Regenerative Medicine and Stem Cell Research (J.Y., K.F., S.L., L.L., P.W., Y.W., M.P., A.D.).,Molecular Biology Institute (J.Y., K.F., S.L., L.L., P.W., Y.W., M.T., M.P., A.D.).,Jonsson Comprehensive Cancer Center (J.Y., K.F., S.L., L.L., P.W., Y.W., R.P.K., D.D.C., M.T., M.P., A.D.)
| | - Marcus M Seldin
- From the Division of Cardiology, Department of Medicine (J.Y., M.M.S., S.L., P.W., Y.W., A.J.L., A.D.).,Cardiovascular Research Laboratory (J.Y., M.M.S., S.L., P.W., Y.W., A.J.L., A.D.).,Departments of Human Genetics and Microbiology, Immunology and Molecular Genetics (M.M.S., A.J.L.)
| | - Kai Fu
- Department of Molecular, Cell, and Developmental Biology (J.Y., K.F., S.L., L.L., P.W., Y.W., M.P., A.D.).,Eli & Edythe Broad Center of Regenerative Medicine and Stem Cell Research (J.Y., K.F., S.L., L.L., P.W., Y.W., M.P., A.D.).,Molecular Biology Institute (J.Y., K.F., S.L., L.L., P.W., Y.W., M.T., M.P., A.D.).,Jonsson Comprehensive Cancer Center (J.Y., K.F., S.L., L.L., P.W., Y.W., R.P.K., D.D.C., M.T., M.P., A.D.)
| | - Shen Li
- From the Division of Cardiology, Department of Medicine (J.Y., M.M.S., S.L., P.W., Y.W., A.J.L., A.D.).,Cardiovascular Research Laboratory (J.Y., M.M.S., S.L., P.W., Y.W., A.J.L., A.D.).,Department of Molecular, Cell, and Developmental Biology (J.Y., K.F., S.L., L.L., P.W., Y.W., M.P., A.D.).,Eli & Edythe Broad Center of Regenerative Medicine and Stem Cell Research (J.Y., K.F., S.L., L.L., P.W., Y.W., M.P., A.D.).,Molecular Biology Institute (J.Y., K.F., S.L., L.L., P.W., Y.W., M.T., M.P., A.D.).,Jonsson Comprehensive Cancer Center (J.Y., K.F., S.L., L.L., P.W., Y.W., R.P.K., D.D.C., M.T., M.P., A.D.)
| | - Larry Lam
- Department of Molecular, Cell, and Developmental Biology (J.Y., K.F., S.L., L.L., P.W., Y.W., M.P., A.D.).,Eli & Edythe Broad Center of Regenerative Medicine and Stem Cell Research (J.Y., K.F., S.L., L.L., P.W., Y.W., M.P., A.D.).,Jonsson Comprehensive Cancer Center (J.Y., K.F., S.L., L.L., P.W., Y.W., R.P.K., D.D.C., M.T., M.P., A.D.)
| | - Ping Wang
- From the Division of Cardiology, Department of Medicine (J.Y., M.M.S., S.L., P.W., Y.W., A.J.L., A.D.).,Cardiovascular Research Laboratory (J.Y., M.M.S., S.L., P.W., Y.W., A.J.L., A.D.).,Department of Molecular, Cell, and Developmental Biology (J.Y., K.F., S.L., L.L., P.W., Y.W., M.P., A.D.).,Eli & Edythe Broad Center of Regenerative Medicine and Stem Cell Research (J.Y., K.F., S.L., L.L., P.W., Y.W., M.P., A.D.).,Molecular Biology Institute (J.Y., K.F., S.L., L.L., P.W., Y.W., M.T., M.P., A.D.).,Jonsson Comprehensive Cancer Center (J.Y., K.F., S.L., L.L., P.W., Y.W., R.P.K., D.D.C., M.T., M.P., A.D.)
| | - Yijie Wang
- From the Division of Cardiology, Department of Medicine (J.Y., M.M.S., S.L., P.W., Y.W., A.J.L., A.D.).,Cardiovascular Research Laboratory (J.Y., M.M.S., S.L., P.W., Y.W., A.J.L., A.D.).,Department of Molecular, Cell, and Developmental Biology (J.Y., K.F., S.L., L.L., P.W., Y.W., M.P., A.D.).,Eli & Edythe Broad Center of Regenerative Medicine and Stem Cell Research (J.Y., K.F., S.L., L.L., P.W., Y.W., M.P., A.D.).,Molecular Biology Institute (J.Y., K.F., S.L., L.L., P.W., Y.W., M.T., M.P., A.D.).,Jonsson Comprehensive Cancer Center (J.Y., K.F., S.L., L.L., P.W., Y.W., R.P.K., D.D.C., M.T., M.P., A.D.)
| | - Dian Huang
- Department of Bioengineering (D.H., T.L.N., D.D.C.)
| | | | - Bowen Wei
- Division of Dermatology, Department of Medicine, David Geffen School of Medicine (B.W., R.P.K.)
| | - Rajan P Kulkarni
- Jonsson Comprehensive Cancer Center (J.Y., K.F., S.L., L.L., P.W., Y.W., R.P.K., D.D.C., M.T., M.P., A.D.).,Division of Dermatology, Department of Medicine, David Geffen School of Medicine (B.W., R.P.K.)
| | - Dino Di Carlo
- Jonsson Comprehensive Cancer Center (J.Y., K.F., S.L., L.L., P.W., Y.W., R.P.K., D.D.C., M.T., M.P., A.D.).,Department of Bioengineering (D.H., T.L.N., D.D.C.)
| | - Michael Teitell
- Molecular Biology Institute (J.Y., K.F., S.L., L.L., P.W., Y.W., M.T., M.P., A.D.).,Jonsson Comprehensive Cancer Center (J.Y., K.F., S.L., L.L., P.W., Y.W., R.P.K., D.D.C., M.T., M.P., A.D.).,Department of Pathology and Laboratory Medicine, David Geffen School of Medicine (M.T.), University of California, Los Angeles
| | - Matteo Pellegrini
- Department of Molecular, Cell, and Developmental Biology (J.Y., K.F., S.L., L.L., P.W., Y.W., M.P., A.D.).,Eli & Edythe Broad Center of Regenerative Medicine and Stem Cell Research (J.Y., K.F., S.L., L.L., P.W., Y.W., M.P., A.D.).,Molecular Biology Institute (J.Y., K.F., S.L., L.L., P.W., Y.W., M.T., M.P., A.D.).,Jonsson Comprehensive Cancer Center (J.Y., K.F., S.L., L.L., P.W., Y.W., R.P.K., D.D.C., M.T., M.P., A.D.)
| | - Aldons J Lusis
- From the Division of Cardiology, Department of Medicine (J.Y., M.M.S., S.L., P.W., Y.W., A.J.L., A.D.).,Cardiovascular Research Laboratory (J.Y., M.M.S., S.L., P.W., Y.W., A.J.L., A.D.).,Departments of Human Genetics and Microbiology, Immunology and Molecular Genetics (M.M.S., A.J.L.)
| | - Arjun Deb
- From the Division of Cardiology, Department of Medicine (J.Y., M.M.S., S.L., P.W., Y.W., A.J.L., A.D.) .,Cardiovascular Research Laboratory (J.Y., M.M.S., S.L., P.W., Y.W., A.J.L., A.D.).,Department of Molecular, Cell, and Developmental Biology (J.Y., K.F., S.L., L.L., P.W., Y.W., M.P., A.D.).,Eli & Edythe Broad Center of Regenerative Medicine and Stem Cell Research (J.Y., K.F., S.L., L.L., P.W., Y.W., M.P., A.D.).,Molecular Biology Institute (J.Y., K.F., S.L., L.L., P.W., Y.W., M.T., M.P., A.D.).,Jonsson Comprehensive Cancer Center (J.Y., K.F., S.L., L.L., P.W., Y.W., R.P.K., D.D.C., M.T., M.P., A.D.)
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8
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Kim P, Chu N, Davis J, Kim DH. Mechanoregulation of Myofibroblast Fate and Cardiac Fibrosis. ADVANCED BIOSYSTEMS 2018; 2:1700172. [PMID: 31406913 PMCID: PMC6690497 DOI: 10.1002/adbi.201700172] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
During myocardial infarction, myocytes die and are replaced by a specialized fibrotic extracellular matrix, otherwise known as scarring. Fibrotic scarring presents a tremendous hemodynamic burden on the heart, as it creates a stiff substrate, which resists diastolic filling. Fibrotic mechanisms result in permanent scarring which often leads to hypertrophy, arrhythmias, and a rapid progression to failure. Despite the deep understanding of fibrosis in other tissues, acquired through previous investigations, the mechanisms of cardiac fibrosis remain unclear. Recent studies suggest that biochemical cues as well as mechanical cues regulate cells in myocardium. However, the steps in myofibroblast transdifferentiation, as well as the molecular mechanisms of such transdifferentiation in vivo, are poorly understood. This review is focused on defining myofibroblast physiology, scar mechanics, and examining current findings of myofibroblast regulation by mechanical stress, stiffness, and topography for understanding fibrotic disease dynamics.
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Affiliation(s)
- Peter Kim
- Department of Bioengineering, University of Washington, Seattle, WA 98109, USA
| | - Nick Chu
- Department of Bioengineering, University of Washington, Seattle, WA 98109, USA
| | - Jennifer Davis
- Department of Bioengineering, University of Washington, Seattle, WA 98109, USA
| | - Deok-Ho Kim
- Department of Bioengineering, University of Washington, Seattle, WA 98109, USA
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Bhuvanalakshmi G, Arfuso F, Kumar AP, Dharmarajan A, Warrier S. Epigenetic reprogramming converts human Wharton's jelly mesenchymal stem cells into functional cardiomyocytes by differential regulation of Wnt mediators. Stem Cell Res Ther 2017; 8:185. [PMID: 28807014 PMCID: PMC5557557 DOI: 10.1186/s13287-017-0638-7] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2017] [Revised: 07/14/2017] [Accepted: 07/21/2017] [Indexed: 12/11/2022] Open
Abstract
Background Lineage commitment of mesenchymal stem cells (MSCs) to cardiac differentiation is controlled by transcription factors that are regulated by epigenetic events, mainly histone deacetylation and promoter DNA methylation. Here, we studied the differentiation of human Wharton’s jelly MSCs (WJMSCs) into the cardiomyocyte lineage via epigenetic manipulations. Methods We introduced these changes using inhibitors of DNA methyl transferase and histone deacetylase, DC301, DC302, and DC303, in various combinations. We characterized for cardiogenic differentiation by assessing the expression of cardiac-specific markers by immunolocalization, quantitative RT-PCR, and flow cytometry. Cardiac functional studies were performed by FURA2AM staining and Greiss assay. The role of Wnt signaling during cardiac differentiation was analyzed by quantitative RT-PCR. In-vivo studies were performed in a doxorubicin-induced cardiotoxic mouse model by injecting cardiac progenitor cells. Promoter methylation status of the cardiac transcription factor Nkx2.5 and the Wnt antagonist, secreted frizzled-related protein 4 (sFRP4), after cardiac differentiation was studied by bisulfite sequencing. Results By induction with DC301 and DC302, WJMSCs differentiated into cardiomyocyte-like structures with an upregulation of Wnt antagonists, sFRP3 and sFRP4, and Dickkopf (Dkk)1 and Dkk3. The cardiac function enhancer, vinculin, and DDX20, a DEAD-box RNA helicase, were also upregulated in differentiated cardiomyocytes. Additionally, bisulfite sequencing revealed, for the first time in cardiogenesis, that sFRP4 is activated by promoter CpG island demethylation. In vivo, these MSC-derived cardiac progenitors could not only successfully engraft to the site of cardiac injury in mice with doxorubicin-induced cardiac injury, but also form functional cardiomyocytes and restore cardiac function. Conclusion The present study unveils a link between Wnt inhibition and epigenetic modification to initiate cardiac differentiation, which could enhance the efficacy of stem cell therapy for ischemic heart disorders. Electronic supplementary material The online version of this article (doi:10.1186/s13287-017-0638-7) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- G Bhuvanalakshmi
- Division of Cancer Stem Cells and Cardiovascular Regeneration, Manipal Institute of Regenerative Medicine, Manipal University, Bangalore, 560 065, India
| | - Frank Arfuso
- Stem Cell and Cancer Biology Laboratory, School of Biomedical Sciences, Curtin Health Innovation Research Institute, Curtin University, Perth, WA, 6845, Australia.,School of Anatomy, Physiology and Human Biology, Faculty of Science, The University of Western Australia, 35 Stirling Highway, Crawley, WA, 6009, Australia
| | - Alan Prem Kumar
- Division of Cancer Stem Cells and Cardiovascular Regeneration, Manipal Institute of Regenerative Medicine, Manipal University, Bangalore, 560 065, India.,Cancer Science Institute of Singapore, National University of Singapore, Singapore, 117599, Singapore.,Department of Pharmacology, Yong Loo Lin School of Medicine, National University of Singapore, Singapore, 117597, Singapore.,School of Biomedical Sciences, Curtin Health Innovation Research Institute, Curtin University, Perth, WA, 6102, Australia.,National University Cancer Institute, Singapore, 119074, Singapore.,Department of Biological Sciences, University of North Texas, Denton, TX, 76203-5017, USA
| | - Arun Dharmarajan
- Stem Cell and Cancer Biology Laboratory, School of Biomedical Sciences, Curtin Health Innovation Research Institute, Curtin University, Perth, WA, 6845, Australia
| | - Sudha Warrier
- Division of Cancer Stem Cells and Cardiovascular Regeneration, Manipal Institute of Regenerative Medicine, Manipal University, Bangalore, 560 065, India. .,School of Biomedical Sciences, Curtin Health Innovation Research Institute, Curtin University, Perth, WA, 6102, Australia. .,Curtin Medical School, Faculty of Health Sciences, Curtin University, Perth, WA, 6875, Australia.
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Ocorr K, Zambon A, Nudell Y, Pineda S, Diop S, Tang M, Akasaka T, Taylor E. Age-dependent electrical and morphological remodeling of the Drosophila heart caused by hERG/seizure mutations. PLoS Genet 2017; 13:e1006786. [PMID: 28542428 PMCID: PMC5459509 DOI: 10.1371/journal.pgen.1006786] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2016] [Revised: 06/05/2017] [Accepted: 04/30/2017] [Indexed: 12/03/2022] Open
Abstract
Understanding the cellular-molecular substrates of heart disease is key to the development of cardiac specific therapies and to the prevention of off-target effects by non-cardiac targeted drugs. One of the primary targets for therapeutic intervention has been the human ether a go-go (hERG) K+ channel that, together with the KCNQ channel, controls the rate and efficiency of repolarization in human myocardial cells. Neither of these channels plays a major role in adult mouse heart function; however, we show here that the hERG homolog seizure (sei), along with KCNQ, both contribute significantly to adult heart function as they do in humans. In Drosophila, mutations in or cardiac knockdown of sei channels cause arrhythmias that become progressively more severe with age. Intracellular recordings of semi-intact heart preparations revealed that these perturbations also cause electrical remodeling that is reminiscent of the early afterdepolarizations seen in human myocardial cells defective in these channels. In contrast to KCNQ, however, mutations in sei also cause extensive structural remodeling of the myofibrillar organization, which suggests that hERG channel function has a novel link to sarcomeric and myofibrillar integrity. We conclude that deficiency of ion channels with similar electrical functions in cardiomyocytes can lead to different types or extents of electrical and/or structural remodeling impacting cardiac output. We have used the fruit fly cardiac model to show that seizure, the fly homolog of the human ether a go-go K+ channel hERG, is functional in the fly heart. This channel plays a major role in cardiac repolarization in humans but not in adult rodent hearts. Loss of channel function in the fly causes bradycardia, electrical arrhythmia and altered myofibrillar structure. Gene expression analysis indicates that Wnt signaling is affected and we show a genetic interaction between sei and pygopus, a Wnt pathway component, on heart function.
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Affiliation(s)
- Karen Ocorr
- Development, Aging and Regeneration Program, Sanford-Burnham-Prebys Medical Discovery Institute, La Jolla, California, United States of America
- * E-mail:
| | - Alexander Zambon
- Development, Aging and Regeneration Program, Sanford-Burnham-Prebys Medical Discovery Institute, La Jolla, California, United States of America
| | - Yoav Nudell
- Development, Aging and Regeneration Program, Sanford-Burnham-Prebys Medical Discovery Institute, La Jolla, California, United States of America
| | - Santiago Pineda
- Development, Aging and Regeneration Program, Sanford-Burnham-Prebys Medical Discovery Institute, La Jolla, California, United States of America
| | - Soda Diop
- Development, Aging and Regeneration Program, Sanford-Burnham-Prebys Medical Discovery Institute, La Jolla, California, United States of America
| | - Min Tang
- Development, Aging and Regeneration Program, Sanford-Burnham-Prebys Medical Discovery Institute, La Jolla, California, United States of America
| | - Takeshi Akasaka
- Development, Aging and Regeneration Program, Sanford-Burnham-Prebys Medical Discovery Institute, La Jolla, California, United States of America
| | - Erika Taylor
- Development, Aging and Regeneration Program, Sanford-Burnham-Prebys Medical Discovery Institute, La Jolla, California, United States of America
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Campos-Peña V, Toral-Rios D, Becerril-Pérez F, Sánchez-Torres C, Delgado-Namorado Y, Torres-Ossorio E, Franco-Bocanegra D, Carvajal K. Metabolic Syndrome as a Risk Factor for Alzheimer's Disease: Is Aβ a Crucial Factor in Both Pathologies? Antioxid Redox Signal 2017; 26:542-560. [PMID: 27368351 DOI: 10.1089/ars.2016.6768] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
SIGNIFICANCE Recently, chronic degenerative diseases have become one of the main health problems worldwide. That is the case of Alzheimer's disease (AD) and metabolic syndrome (MetS), whose expression can be influenced by different risk factors. Recent Advances: In recent decades, it has been widely described that MetS increases the risk of cognitive impairment and dementia. MetS pathogenesis involves several vascular risk factors such as diabetes, dyslipidemia, hypertension, and insulin resistance (I/R). CRITICAL ISSUES Reported evidence shows that vascular risk factors are associated with AD, particularly in the development of protein aggregation, inflammation, oxidative stress, neuronal dysfunction, and disturbances in signaling pathways, with insulin receptor signaling being a common alteration between MetS and AD. FUTURE DIRECTIONS Insulin signaling has been involved in tau phosphorylation and amyloid β (Aβ) metabolism. However, it has also been demonstrated that Aβ oligomers can bind to insulin receptors, triggering their internalization, decreasing neuron responsiveness to insulin, and promoting insulin I/R. Thus, it could be argued that Aβ could be a convergent factor in the development of both pathologies. Antioxid. Redox Signal. 26, 542-560.
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Affiliation(s)
| | - Danira Toral-Rios
- 2 Departamento de Fisiología Biofísica y Neurociencias, Centro de Investigación y de Estudios Avanzados del Instituto Politécnico Nacional , Mexico City, Mexico
| | | | - Carmen Sánchez-Torres
- 4 Departamento of Biomedicina Molecular, Centro de Investigación y de Estudios Avanzados del Instituto Politécnico Nacional , Mexico City, Mexico
| | | | - Elimar Torres-Ossorio
- 6 Facultad de Química, Universidad Nacional Autónoma de México , Mexico City, Mexico
| | | | - Karla Carvajal
- 7 Laboratorio de Nutrición Experimental, Instituto Nacional de Pediatría , Mexico City, Mexico
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12
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Stylianidis V, Hermans KCM, Blankesteijn WM. Wnt Signaling in Cardiac Remodeling and Heart Failure. Handb Exp Pharmacol 2017; 243:371-393. [PMID: 27838851 DOI: 10.1007/164_2016_56] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
Wnt signaling plays an essential role during development, but is also activated in diseases as diverse as neurodegeneration, osteoporosis, and cancer. Accumulating evidence demonstrates that Wnt signaling is also activated during cardiac remodeling and heart failure. In this chapter, we will provide a brief overview of Wnt signaling in all its complexity. Then we will discuss the evidence for its involvement in the development of cardiac hypertrophy, the wound healing after myocardial infarction (MI) and heart failure. Finally, we will provide an overview of the drugs that are available to target Wnt signaling at different levels of the signaling cascade and the results of these pharmacological interventions in cardiac disease.
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Affiliation(s)
- Vasili Stylianidis
- Department of Pharmacology and Toxicology, Cardiovascular Research Institute Maastricht (CARIM), Maastricht University, P.O. Box 616, 6200 MD, Maastricht, The Netherlands
| | - Kevin C M Hermans
- Department of Pharmacology and Toxicology, Cardiovascular Research Institute Maastricht (CARIM), Maastricht University, P.O. Box 616, 6200 MD, Maastricht, The Netherlands
| | - W Matthijs Blankesteijn
- Department of Pharmacology and Toxicology, Cardiovascular Research Institute Maastricht (CARIM), Maastricht University, P.O. Box 616, 6200 MD, Maastricht, The Netherlands.
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Albanese I, Yu B, Al-Kindi H, Barratt B, Ott L, Al-Refai M, de Varennes B, Shum-Tim D, Cerruti M, Gourgas O, Rhéaume E, Tardif JC, Schwertani A. Role of Noncanonical Wnt Signaling Pathway in Human Aortic Valve Calcification. Arterioscler Thromb Vasc Biol 2016; 37:543-552. [PMID: 27932350 DOI: 10.1161/atvbaha.116.308394] [Citation(s) in RCA: 59] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2016] [Accepted: 11/28/2016] [Indexed: 11/16/2022]
Abstract
OBJECTIVE The mechanisms underlying the pathogenesis of aortic valve calcification remain unclear. With accumulating evidence demonstrating that valve calcification recapitulates bone development, the crucial roles of noncanonical Wnt ligands WNT5a, WNT5b, and WNT11 in osteogenesis make them critical targets in the study of aortic valve calcification. APPROACH AND RESULTS Using immunohistochemistry, real-time qPCR, Western blotting, and tissue culture, we examined the tissue distribution of WNT5a, WNT5b, and WNT11 in noncalcified and calcified aortic valves and their effects on human aortic valve interstitial cells (HAVICs). Only focal strong immunostaining for WNT5a was seen in and around areas of calcification. Abundant immunostaining for WNT5b and WNT11 was seen in inflammatory cells, fibrosis, and activated myofibroblasts in areas of calcified foci. There was significant correlation between WNT5b and WNT11 overall staining and presence of calcification, lipid score, fibrosis, and microvessels (P<0.05). Real-time qPCR and Western blotting revealed abundant expression of both Wnts in stenotic aortic valves, particularly in bicuspid valves. Incubation of HAVICs from noncalcified valves with the 3 noncanonical Wnts significantly increased cell apoptosis and calcification (P<0.05). Treatment of HAVICs with the mitogen-activated protein kinase-38β and GSK3β inhibitors significantly reduced their mineralization (P<0.01). Raman spectroscopy identified the inorganic phosphate deposits as hydroxyapatite and showed a significant increase in hydroxyapatite deposition in HAVICs in response to WNT5a and WNT11 (P<0.05). Similar crystallinity was seen in the deposits found in HAVICs treated with Wnts and in calcified human aortic valves. CONCLUSIONS These findings suggest a potential role for noncanonical Wnt signaling in the pathogenesis of aortic valve calcification.
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Affiliation(s)
- Isabella Albanese
- From the Division of Cardiology and Division of Cardiac Surgery, McGill University Health Centre, Montreal, Quebec, Canada (I.A., B.Y., H.A.-K., B.B., L.O., M.A.-R., B.d.V., D.S.-T., A.S.); Department of Material Engineering, McGill University, Montreal, Quebec, Canada (M.C., O.G.); and Montreal Heart Institute, Université de Montréal, Montreal, Quebec, Canada (E.R., J.C.T.)
| | - Bin Yu
- From the Division of Cardiology and Division of Cardiac Surgery, McGill University Health Centre, Montreal, Quebec, Canada (I.A., B.Y., H.A.-K., B.B., L.O., M.A.-R., B.d.V., D.S.-T., A.S.); Department of Material Engineering, McGill University, Montreal, Quebec, Canada (M.C., O.G.); and Montreal Heart Institute, Université de Montréal, Montreal, Quebec, Canada (E.R., J.C.T.)
| | - Hamood Al-Kindi
- From the Division of Cardiology and Division of Cardiac Surgery, McGill University Health Centre, Montreal, Quebec, Canada (I.A., B.Y., H.A.-K., B.B., L.O., M.A.-R., B.d.V., D.S.-T., A.S.); Department of Material Engineering, McGill University, Montreal, Quebec, Canada (M.C., O.G.); and Montreal Heart Institute, Université de Montréal, Montreal, Quebec, Canada (E.R., J.C.T.)
| | - Bianca Barratt
- From the Division of Cardiology and Division of Cardiac Surgery, McGill University Health Centre, Montreal, Quebec, Canada (I.A., B.Y., H.A.-K., B.B., L.O., M.A.-R., B.d.V., D.S.-T., A.S.); Department of Material Engineering, McGill University, Montreal, Quebec, Canada (M.C., O.G.); and Montreal Heart Institute, Université de Montréal, Montreal, Quebec, Canada (E.R., J.C.T.)
| | - Leah Ott
- From the Division of Cardiology and Division of Cardiac Surgery, McGill University Health Centre, Montreal, Quebec, Canada (I.A., B.Y., H.A.-K., B.B., L.O., M.A.-R., B.d.V., D.S.-T., A.S.); Department of Material Engineering, McGill University, Montreal, Quebec, Canada (M.C., O.G.); and Montreal Heart Institute, Université de Montréal, Montreal, Quebec, Canada (E.R., J.C.T.)
| | - Mohammad Al-Refai
- From the Division of Cardiology and Division of Cardiac Surgery, McGill University Health Centre, Montreal, Quebec, Canada (I.A., B.Y., H.A.-K., B.B., L.O., M.A.-R., B.d.V., D.S.-T., A.S.); Department of Material Engineering, McGill University, Montreal, Quebec, Canada (M.C., O.G.); and Montreal Heart Institute, Université de Montréal, Montreal, Quebec, Canada (E.R., J.C.T.)
| | - Benoit de Varennes
- From the Division of Cardiology and Division of Cardiac Surgery, McGill University Health Centre, Montreal, Quebec, Canada (I.A., B.Y., H.A.-K., B.B., L.O., M.A.-R., B.d.V., D.S.-T., A.S.); Department of Material Engineering, McGill University, Montreal, Quebec, Canada (M.C., O.G.); and Montreal Heart Institute, Université de Montréal, Montreal, Quebec, Canada (E.R., J.C.T.)
| | - Dominique Shum-Tim
- From the Division of Cardiology and Division of Cardiac Surgery, McGill University Health Centre, Montreal, Quebec, Canada (I.A., B.Y., H.A.-K., B.B., L.O., M.A.-R., B.d.V., D.S.-T., A.S.); Department of Material Engineering, McGill University, Montreal, Quebec, Canada (M.C., O.G.); and Montreal Heart Institute, Université de Montréal, Montreal, Quebec, Canada (E.R., J.C.T.)
| | - Marta Cerruti
- From the Division of Cardiology and Division of Cardiac Surgery, McGill University Health Centre, Montreal, Quebec, Canada (I.A., B.Y., H.A.-K., B.B., L.O., M.A.-R., B.d.V., D.S.-T., A.S.); Department of Material Engineering, McGill University, Montreal, Quebec, Canada (M.C., O.G.); and Montreal Heart Institute, Université de Montréal, Montreal, Quebec, Canada (E.R., J.C.T.)
| | - Ophélie Gourgas
- From the Division of Cardiology and Division of Cardiac Surgery, McGill University Health Centre, Montreal, Quebec, Canada (I.A., B.Y., H.A.-K., B.B., L.O., M.A.-R., B.d.V., D.S.-T., A.S.); Department of Material Engineering, McGill University, Montreal, Quebec, Canada (M.C., O.G.); and Montreal Heart Institute, Université de Montréal, Montreal, Quebec, Canada (E.R., J.C.T.)
| | - Eric Rhéaume
- From the Division of Cardiology and Division of Cardiac Surgery, McGill University Health Centre, Montreal, Quebec, Canada (I.A., B.Y., H.A.-K., B.B., L.O., M.A.-R., B.d.V., D.S.-T., A.S.); Department of Material Engineering, McGill University, Montreal, Quebec, Canada (M.C., O.G.); and Montreal Heart Institute, Université de Montréal, Montreal, Quebec, Canada (E.R., J.C.T.)
| | - Jean-Claude Tardif
- From the Division of Cardiology and Division of Cardiac Surgery, McGill University Health Centre, Montreal, Quebec, Canada (I.A., B.Y., H.A.-K., B.B., L.O., M.A.-R., B.d.V., D.S.-T., A.S.); Department of Material Engineering, McGill University, Montreal, Quebec, Canada (M.C., O.G.); and Montreal Heart Institute, Université de Montréal, Montreal, Quebec, Canada (E.R., J.C.T.)
| | - Adel Schwertani
- From the Division of Cardiology and Division of Cardiac Surgery, McGill University Health Centre, Montreal, Quebec, Canada (I.A., B.Y., H.A.-K., B.B., L.O., M.A.-R., B.d.V., D.S.-T., A.S.); Department of Material Engineering, McGill University, Montreal, Quebec, Canada (M.C., O.G.); and Montreal Heart Institute, Université de Montréal, Montreal, Quebec, Canada (E.R., J.C.T.).
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14
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Novel therapeutic strategies targeting fibroblasts and fibrosis in heart disease. Nat Rev Drug Discov 2016; 15:620-638. [PMID: 27339799 DOI: 10.1038/nrd.2016.89] [Citation(s) in RCA: 221] [Impact Index Per Article: 27.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Our understanding of the functions of cardiac fibroblasts has moved beyond their roles in heart structure and extracellular matrix generation and now includes their contributions to paracrine, mechanical and electrical signalling during ontogenesis and normal cardiac activity. Fibroblasts also have central roles in pathogenic remodelling during myocardial ischaemia, hypertension and heart failure. As key contributors to scar formation, they are crucial for tissue repair after interventions including surgery and ablation. Novel experimental approaches targeting cardiac fibroblasts are promising potential therapies for heart disease. Indeed, several existing drugs act, at least partially, through effects on cardiac connective tissue. This Review outlines the origins and roles of fibroblasts in cardiac development, homeostasis and disease; illustrates the involvement of fibroblasts in current and emerging clinical interventions; and identifies future targets for research and development.
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15
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UM206, a selective Frizzled antagonist, attenuates adverse remodeling after myocardial infarction in swine. J Transl Med 2016; 96:168-76. [PMID: 26658451 DOI: 10.1038/labinvest.2015.139] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2015] [Revised: 07/27/2015] [Accepted: 08/26/2015] [Indexed: 11/09/2022] Open
Abstract
Modulation of Wnt/Frizzled signaling with UM206 reduced infarct expansion and prevented heart failure development in mice, an effect that was accompanied by increased myofibroblast presence in the infarct, suggesting that Wnt/Frizzled signaling has a key role in cardiac remodeling following myocardial infarction (MI). This study investigated the effects of modulation of Wnt/Frizzled signaling with UM206 in a swine model of reperfused MI. For this purpose, seven swine with MI were treated with continuous infusion of UM206 for 5 weeks. Six control swine were treated with vehicle. Another eight swine were sham-operated. Cardiac function was determined by echo in awake swine. Infarct mass was estimated at baseline by heart-specific fatty acid-binding protein ELISA and at follow-up using planimetry. Components of Wnt/Frizzled signaling, myofibroblast presence, and extracellular matrix were measured at follow-up with qPCR and/or histology. Results show that UM206 treatment resulted in a significant decrease in infarct mass compared with baseline (-41±10%), whereas infarct mass remained stable in the Control-MI group (+3±17%). Progressive dilation of the left ventricle occurred in the Control-MI group between 3 and 5 weeks after MI, while adverse remodeling was halted in the UM206-treated group. mRNA expression for Frizzled-4 and the Frizzled co-receptor LRP5 was increased in UM206-treated swine as compared with Control-MI swine. Myofibroblast presence was significantly lower in infarcted tissue of the UM206-treated animals (1.53±0.43% vs 3.38±0.61%) at 5 weeks follow-up. This study demonstrates that UM206 treatment attenuates adverse remodeling in a swine model of reperfused MI, indicating that Wnt/Frizzled signaling is a promising target to improve infarct healing and limit post-MI remodeling.
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AMPK in cardiac fibrosis and repair: Actions beyond metabolic regulation. J Mol Cell Cardiol 2016; 91:188-200. [PMID: 26772531 DOI: 10.1016/j.yjmcc.2016.01.001] [Citation(s) in RCA: 94] [Impact Index Per Article: 11.8] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/15/2015] [Revised: 12/28/2015] [Accepted: 01/04/2016] [Indexed: 02/06/2023]
Abstract
Fibrosis is a general term encompassing a plethora of pathologies that span all systems and is marked by increased deposition of collagen. Injury of variable etiology gives rise to complex cascades involving several cell-types and molecular signals, leading to the excessive accumulation of extracellular matrix that promotes fibrosis and eventually leads to organ failure. Cardiac fibrosis is a dynamic process associated notably with ischemia, hypertrophy, volume- and pressure-overload, aging and diabetes mellitus. It has profoundly deleterious consequences on the normal architecture and functioning of the myocardium and is associated with considerable mortality and morbidity. The AMP-activated protein kinase (AMPK) is a ubiquitously expressed cellular energy sensor and an essential component of the adaptive response to cardiomyocyte stress that occurs during ischemia. Nevertheless, its actions extend well beyond its energy-regulating role and it appears to possess an essential role in regulating fibrosis of the myocardium. In this review paper, we will summarize the main elements and crucial players of cardiac fibrosis. In addition, we will provide an overview of the diverse roles of AMPK in the heart and discuss in detail its implication in cardiac fibrosis. Lastly, we will highlight the recently published literature concerning AMPK-targeting current therapy and novel strategies aiming to attenuate fibrosis.
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17
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Pahnke A, Conant G, Huyer LD, Zhao Y, Feric N, Radisic M. The role of Wnt regulation in heart development, cardiac repair and disease: A tissue engineering perspective. Biochem Biophys Res Commun 2015; 473:698-703. [PMID: 26626076 DOI: 10.1016/j.bbrc.2015.11.060] [Citation(s) in RCA: 38] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2015] [Accepted: 11/14/2015] [Indexed: 01/08/2023]
Abstract
Wingless-related integration site (Wnt) signaling has proven to be a fundamental mechanism in cardiovascular development as well as disease. Understanding its particular role in heart formation has helped to develop pluripotent stem cell differentiation protocols that produce relatively pure cardiomyocyte populations. The resultant cardiomyocytes have been used to generate heart tissue for pharmaceutical testing, and to study physiological and disease states. Such protocols in combination with induced pluripotent stem cell technology have yielded patient-derived cardiomyocytes that exhibit some of the hallmarks of cardiovascular disease and are therefore being used to model disease states. While FDA approval of new treatments typically requires animal experiments, the burgeoning field of tissue engineering could act as a replacement. This would necessitate the generation of reproducible three-dimensional cardiac tissues in a well-controlled environment, which exhibit native heart properties, such as cellular density, composition, extracellular matrix composition, and structure-function. Such tissues could also enable the further study of Wnt signaling. Furthermore, as Wnt signaling has been found to have a mechanistic role in cardiac pathophysiology, e.g. heart attack, hypertrophy, atherosclerosis, and aortic stenosis, its strategic manipulation could provide a means of generating reproducible and specific, physiological and pathological cardiac models.
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Affiliation(s)
- Aric Pahnke
- Department of Chemical Engineering and Applied Chemistry, University of Toronto, Toronto, ON, Canada; Institute of Biomaterials and Biomedical Engineering, University of Toronto, Toronto, ON, Canada
| | - Genna Conant
- Department of Chemical Engineering and Applied Chemistry, University of Toronto, Toronto, ON, Canada; Institute of Biomaterials and Biomedical Engineering, University of Toronto, Toronto, ON, Canada
| | - Locke Davenport Huyer
- Department of Chemical Engineering and Applied Chemistry, University of Toronto, Toronto, ON, Canada; Institute of Biomaterials and Biomedical Engineering, University of Toronto, Toronto, ON, Canada
| | - Yimu Zhao
- Department of Chemical Engineering and Applied Chemistry, University of Toronto, Toronto, ON, Canada
| | - Nicole Feric
- Institute of Biomaterials and Biomedical Engineering, University of Toronto, Toronto, ON, Canada
| | - Milica Radisic
- Department of Chemical Engineering and Applied Chemistry, University of Toronto, Toronto, ON, Canada; Institute of Biomaterials and Biomedical Engineering, University of Toronto, Toronto, ON, Canada.
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18
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Paik DT, Rai M, Ryzhov S, Sanders LN, Aisagbonhi O, Funke MJ, Feoktistov I, Hatzopoulos AK. Wnt10b Gain-of-Function Improves Cardiac Repair by Arteriole Formation and Attenuation of Fibrosis. Circ Res 2015; 117:804-16. [PMID: 26338900 DOI: 10.1161/circresaha.115.306886] [Citation(s) in RCA: 47] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/20/2015] [Accepted: 09/03/2015] [Indexed: 01/10/2023]
Abstract
RATIONALE Myocardial infarction causes irreversible tissue damage, leading to heart failure. We recently discovered that canonical Wnt signaling and the Wnt10b ligand are strongly induced in mouse hearts after infarction. Wnt10b regulates cell fate in various organs, but its role in the heart is unknown. OBJECTIVE To investigate the effect of Wnt10b gain-of-function on cardiac repair mechanisms and to assess its potential to improve ventricular function after injury. METHODS AND RESULTS Histological and molecular analyses showed that Wnt10b is expressed in cardiomyocytes and localized in the intercalated discs of mouse and human hearts. After coronary artery ligation or cryoinjury in mice, Wnt10b is strongly and transiently induced in peri-infarct cardiomyocytes during granulation tissue formation. To determine the effect of Wnt10b on neovascularization and fibrosis, we generated a mouse line to increase endogenous Wnt10b levels in cardiomyocytes. We found that gain of Wnt10b function orchestrated a recovery phenotype characterized by robust neovascularization of the injury zone, less myofibroblasts, reduced scar size, and improved ventricular function compared with wild-type mice. Wnt10b stimulated expression of vascular endothelial growth factor receptor 2 in endothelial cells and angiopoietin-1 in vascular smooth muscle cells through nuclear factor-κB activation. These effects coordinated endothelial growth and smooth muscle cell recruitment, promoting robust formation of large, coronary-like blood vessels. CONCLUSION Wnt10b gain-of-function coordinates arterial formation and attenuates fibrosis in cardiac tissue after injury. Because generation of mature blood vessels is necessary for efficient perfusion, our findings could lead to novel strategies to optimize the inherent repair capacity of the heart and prevent the onset of heart failure.
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Affiliation(s)
- David T Paik
- From the Division of Cardiovascular Medicine, Department of Medicine (D.T.P., M.R., S.R., L.N.S., O.A., M.J.F., I.F., A.K.H.), Department of Cell and Developmental Biology (D.T.P., M.R., L.N.S., O.A., A.K.H.), and Department of Pharmacology, Vanderbilt University, Nashville, TN (I.F.); Center for Molecular Medicine, Maine Medical Center Research Institute, Scarborough (S.R.); Department of Pathology, Harvard Medical School, Massachusetts General Hospital, Boston (O.A.); and Golden Rule Medical, Cincinnati, OH (M.J.F.)
| | - Meena Rai
- From the Division of Cardiovascular Medicine, Department of Medicine (D.T.P., M.R., S.R., L.N.S., O.A., M.J.F., I.F., A.K.H.), Department of Cell and Developmental Biology (D.T.P., M.R., L.N.S., O.A., A.K.H.), and Department of Pharmacology, Vanderbilt University, Nashville, TN (I.F.); Center for Molecular Medicine, Maine Medical Center Research Institute, Scarborough (S.R.); Department of Pathology, Harvard Medical School, Massachusetts General Hospital, Boston (O.A.); and Golden Rule Medical, Cincinnati, OH (M.J.F.)
| | - Sergey Ryzhov
- From the Division of Cardiovascular Medicine, Department of Medicine (D.T.P., M.R., S.R., L.N.S., O.A., M.J.F., I.F., A.K.H.), Department of Cell and Developmental Biology (D.T.P., M.R., L.N.S., O.A., A.K.H.), and Department of Pharmacology, Vanderbilt University, Nashville, TN (I.F.); Center for Molecular Medicine, Maine Medical Center Research Institute, Scarborough (S.R.); Department of Pathology, Harvard Medical School, Massachusetts General Hospital, Boston (O.A.); and Golden Rule Medical, Cincinnati, OH (M.J.F.)
| | - Lehanna N Sanders
- From the Division of Cardiovascular Medicine, Department of Medicine (D.T.P., M.R., S.R., L.N.S., O.A., M.J.F., I.F., A.K.H.), Department of Cell and Developmental Biology (D.T.P., M.R., L.N.S., O.A., A.K.H.), and Department of Pharmacology, Vanderbilt University, Nashville, TN (I.F.); Center for Molecular Medicine, Maine Medical Center Research Institute, Scarborough (S.R.); Department of Pathology, Harvard Medical School, Massachusetts General Hospital, Boston (O.A.); and Golden Rule Medical, Cincinnati, OH (M.J.F.)
| | - Omonigho Aisagbonhi
- From the Division of Cardiovascular Medicine, Department of Medicine (D.T.P., M.R., S.R., L.N.S., O.A., M.J.F., I.F., A.K.H.), Department of Cell and Developmental Biology (D.T.P., M.R., L.N.S., O.A., A.K.H.), and Department of Pharmacology, Vanderbilt University, Nashville, TN (I.F.); Center for Molecular Medicine, Maine Medical Center Research Institute, Scarborough (S.R.); Department of Pathology, Harvard Medical School, Massachusetts General Hospital, Boston (O.A.); and Golden Rule Medical, Cincinnati, OH (M.J.F.)
| | - Mitchell J Funke
- From the Division of Cardiovascular Medicine, Department of Medicine (D.T.P., M.R., S.R., L.N.S., O.A., M.J.F., I.F., A.K.H.), Department of Cell and Developmental Biology (D.T.P., M.R., L.N.S., O.A., A.K.H.), and Department of Pharmacology, Vanderbilt University, Nashville, TN (I.F.); Center for Molecular Medicine, Maine Medical Center Research Institute, Scarborough (S.R.); Department of Pathology, Harvard Medical School, Massachusetts General Hospital, Boston (O.A.); and Golden Rule Medical, Cincinnati, OH (M.J.F.)
| | - Igor Feoktistov
- From the Division of Cardiovascular Medicine, Department of Medicine (D.T.P., M.R., S.R., L.N.S., O.A., M.J.F., I.F., A.K.H.), Department of Cell and Developmental Biology (D.T.P., M.R., L.N.S., O.A., A.K.H.), and Department of Pharmacology, Vanderbilt University, Nashville, TN (I.F.); Center for Molecular Medicine, Maine Medical Center Research Institute, Scarborough (S.R.); Department of Pathology, Harvard Medical School, Massachusetts General Hospital, Boston (O.A.); and Golden Rule Medical, Cincinnati, OH (M.J.F.)
| | - Antonis K Hatzopoulos
- From the Division of Cardiovascular Medicine, Department of Medicine (D.T.P., M.R., S.R., L.N.S., O.A., M.J.F., I.F., A.K.H.), Department of Cell and Developmental Biology (D.T.P., M.R., L.N.S., O.A., A.K.H.), and Department of Pharmacology, Vanderbilt University, Nashville, TN (I.F.); Center for Molecular Medicine, Maine Medical Center Research Institute, Scarborough (S.R.); Department of Pathology, Harvard Medical School, Massachusetts General Hospital, Boston (O.A.); and Golden Rule Medical, Cincinnati, OH (M.J.F.).
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FrzA gene protects cardiomyocytes from H2O2-induced oxidative stress through restraining the Wnt/Frizzled pathway. Lipids Health Dis 2015; 14:90. [PMID: 26282432 PMCID: PMC4539933 DOI: 10.1186/s12944-015-0088-0] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2015] [Accepted: 07/25/2015] [Indexed: 12/16/2022] Open
Abstract
Background Lately, there is accumulating evidence that the Wnt/Frizzled pathway is reactivated after myocardial infarction, the inhibition of the pathway is beneficial since it reduce of myocardial apoptosis and prevents heart failure. FrzA/Sfrp-1, a secreted frizzled-related protein and antagonist for the wnt/frizzled pathway. We assessed the hypothesis that FrzA protects cardiomyocytes from H2O2-Induced Oxidative damage through the inhibition of Wnt/Frizzled pathway activity. Methods We used a recombinant AAV9 vector to deliver FrzA gene into neonatal rat ventricle myocytes and developed an oxidative stress model using H2O2. The cell vitality was measured by MTT colorimetric assay. Western blot and RT-PCR were used to evaluate the expressions of Dvl-1, β-catenin, c-Myc, Bax and Bcl-2. Flow cytometry analysis of cardiomyocytes apoptosis. Results We confirmed that Wnt/frizzled pathway is involved in H2O2-induced apoptosis in cardiomyocytes. Compared with controls, H2O2 induced the upregulation of Dvl-1, β-catenin, and c-Myc. FrzA suppressed the expression of Dvl-1, β-catenin, c-Myc and the activity of the Wnt/frizzled pathway. Furthermore, FrzA over-expression decreased the apoptotic rate, and the Bax/Bcl-2 ratio in cardiomyocytes treated with H2O2. Conclusions FrzA, through the inhibition of Wnt/Frizzled pathway activity reduced H2O2-induced cardiomyocytes apoptosis and could be a potential therapeutic target for prevention of cardiac oxidative damage.
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20
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Schmeckpeper J, Verma A, Yin L, Beigi F, Zhang L, Payne A, Zhang Z, Pratt RE, Dzau VJ, Mirotsou M. Inhibition of Wnt6 by Sfrp2 regulates adult cardiac progenitor cell differentiation by differential modulation of Wnt pathways. J Mol Cell Cardiol 2015; 85:215-25. [PMID: 26071893 PMCID: PMC4838816 DOI: 10.1016/j.yjmcc.2015.06.003] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/26/2015] [Revised: 05/10/2015] [Accepted: 06/01/2015] [Indexed: 11/23/2022]
Abstract
Wnt signaling has recently emerged as an important regulator of cardiac progenitor cell proliferation and differentiation, but the exact mechanisms by which Wnt signaling modulates these effects are not known. Understanding these mechanisms is essential for advancing our knowledge of cardiac progenitor cell biology and applying this knowledge to enhance cardiac therapy. Here, we explored the effects of Sfrp2, a canonical Wnt inhibitor, in adult cardiac progenitor cell (CPC) differentiation and investigated the molecular mechanisms involved. Our data show that Sfrp2 treatment can promote differentiation of CPCs after ischemia-reperfusion injury. Treatment of CPCs with Sfrp2 inhibited CPC proliferation and primed them for cardiac differentiation. Sfrp2 binding to Wnt6 and inhibition of Wnt6 canonical pathway was essential for the inhibition of CPC proliferation. This inhibition of Wnt6 canonical signaling by Sfrp2 was important for activation of the non-canonical Wnt/Planar Cell Polarity (PCP) pathway through JNK, which in turn induced expression of cardiac transcription factors and CPC differentiation. Taken together, these results demonstrate a novel role of Sfrp2 and Wnt6 in regulating the dynamic process of CPC proliferation and differentiation, as well as providing new insights into the mechanisms of Wnt signaling in cardiac differentiation.
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Affiliation(s)
- Jeffrey Schmeckpeper
- Division of Cardiology, Department of Medicine, Duke University Medical Center & Duke Cardiovascular Research Center, Durham, NC 27710, USA
| | - Amanda Verma
- Division of Cardiology, Department of Medicine, Duke University Medical Center & Duke Cardiovascular Research Center, Durham, NC 27710, USA
| | - Lucy Yin
- Division of Cardiology, Department of Medicine, Duke University Medical Center & Duke Cardiovascular Research Center, Durham, NC 27710, USA
| | - Farideh Beigi
- Division of Cardiology, Department of Medicine, Duke University Medical Center & Duke Cardiovascular Research Center, Durham, NC 27710, USA
| | - Lunan Zhang
- Division of Cardiology, Department of Medicine, Duke University Medical Center & Duke Cardiovascular Research Center, Durham, NC 27710, USA
| | - Alan Payne
- Division of Cardiology, Department of Medicine, Duke University Medical Center & Duke Cardiovascular Research Center, Durham, NC 27710, USA
| | - Zhiping Zhang
- Division of Cardiology, Department of Medicine, Duke University Medical Center & Duke Cardiovascular Research Center, Durham, NC 27710, USA
| | - Richard E Pratt
- Division of Cardiology, Department of Medicine, Duke University Medical Center & Duke Cardiovascular Research Center, Durham, NC 27710, USA; Duke Cardiovascular Research Center, Durham, NC 27710, USA
| | - Victor J Dzau
- Division of Cardiology, Department of Medicine, Duke University Medical Center & Duke Cardiovascular Research Center, Durham, NC 27710, USA; Duke Cardiovascular Research Center, Durham, NC 27710, USA.
| | - Maria Mirotsou
- Division of Cardiology, Department of Medicine, Duke University Medical Center & Duke Cardiovascular Research Center, Durham, NC 27710, USA; Duke Cardiovascular Research Center, Durham, NC 27710, USA
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Cao J, Tsenovoy PL, Thompson EA, Falck JR, Touchon R, Sodhi K, Rezzani R, Shapiro JI, Abraham NG. Agonists of epoxyeicosatrienoic acids reduce infarct size and ameliorate cardiac dysfunction via activation of HO-1 and Wnt1 canonical pathway. Prostaglandins Other Lipid Mediat 2015; 116-117:76-86. [PMID: 25677507 PMCID: PMC5553685 DOI: 10.1016/j.prostaglandins.2015.01.002] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/02/2014] [Revised: 01/15/2015] [Accepted: 01/16/2015] [Indexed: 12/27/2022]
Abstract
Myocardial infarction (MI) is complicated by ventricular fibrosis and associated diastolic and systolic failure. Emerging studies implicate Wnt1 signaling in the formation of new blood vessels. Epoxyeicosatrienoic acids (EETs)-mediated up-regulation of heme oxygenase-1 (HO-1) protects against the detrimental consequences of MI in several animal models, however, the mechanism(s) by which this occurs remains unclear. The aim of this study was to examine these mechanisms in the LAD ligation animal model of post infarcted heart failure. Specifically, we sought to clarify the mechanistic basis of the interactions of the Wnt1 canonical pathway, HO-1 and associated angiogenesis. Human microvascular endothelial cells (HMECs) were exposed to anoxia and treated with the EET agonist, NUDSA, in the presence and absence of tin mesoporphyrin (SnMP). Increased capillary density, and Wnt1 and HO-1 expression occurred in cells treated with NUDSA. Anoxic HMECs treated with NUDSA and Wnt1 siRNA, exhibited decreased in the expression of β-catenin and the Wnt1 target gene, PPARδ (p<0.05 vs. NUDSA). Furthermore, blocking the Wnt 1 antagonist, Dickkopf 1, by siRNA increased β-catenin and PPARδ expression, and this effect was further enhanced by the concurrent administration of NUDSA. In in vivo experiments, C57B16 mice were divided into 4 groups: sham, mice with MI via LAD ligation and mice with MI treated with NUDSA, with and without SnMP. Increased fractional area change (FAC) and myocardial angiogenesis were observed in mice treated with NUDSA (p<0.05 vs. MI). Increased expression of HO-1, Wnt1, β-catenin, adiponectin, and phospho-endothelial nitric oxide synthetase (p-eNOS), and a decrease in the glycosylated subunit of nicotinamide adenine dinucleotide phosphate (NADPH) oxidase, gp91(phox) expression occurred in cardiac tissue of mice treated with NUDSA (p<0.05 vs. MI). SnMP reversed these effects. This novel study demonstrates that increasing the canonical Wnt1 signaling cascade with the subsequent increase in HO-1, adiponectin and angiogenesis ameliorates fibrosis and cardiac dysfunction in a mouse model of MI and supports the hypothesis that HO-1 is an integral component of the EETs-adiponectin axis and is central for the control of resistance to fibrosis and vascular dysfunction and in part determine how they influence the cellular/vascular homeostasis and provides insight into the mechanisms involved in vascular dysfunction as well as potential targets for the treatment of CVD.
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Affiliation(s)
- Jian Cao
- Chinese PLA General Hospital, Beijing 100853, China
| | | | - Ellen A Thompson
- Joan C. Edwards School of Medicine, Marshall University, Huntington, WV 25701, United States
| | - John R Falck
- University of Texas Southwestern Medical Center at Dallas, Dallas, TX 75390, United States
| | - Robert Touchon
- Joan C. Edwards School of Medicine, Marshall University, Huntington, WV 25701, United States
| | - Komal Sodhi
- Joan C. Edwards School of Medicine, Marshall University, Huntington, WV 25701, United States
| | - Rita Rezzani
- New York Medical College, Valhalla, NY, United States
| | - Joseph I Shapiro
- Joan C. Edwards School of Medicine, Marshall University, Huntington, WV 25701, United States
| | - Nader G Abraham
- New York Medical College, Valhalla, NY, United States; Joan C. Edwards School of Medicine, Marshall University, Huntington, WV 25701, United States.
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22
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Zhang M, Hagenmueller M, Riffel JH, Kreusser MM, Bernhold E, Fan J, Katus HA, Backs J, Hardt SE. Calcium/calmodulin-dependent protein kinase II couples Wnt signaling with histone deacetylase 4 and mediates dishevelled-induced cardiomyopathy. Hypertension 2014; 65:335-44. [PMID: 25489064 DOI: 10.1161/hypertensionaha.114.04467] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Activation of Wnt signaling results in maladaptive cardiac remodeling and cardiomyopathy. Recently, calcium/calmodulin-dependent protein kinase II (CaMKII) was reported to be a pivotal participant in myocardial remodeling. Because CaMKII was suggested as a downstream target of noncanonical Wnt signaling, we aimed to elucidate the role of CaMKII in dishevelled-1-induced cardiomyopathy and the mechanisms underlying its function. Dishevelled-1-induced cardiomyopathy was reversed by deletion of neither CaMKIIδ nor CaMKIIγ. Therefore, dishevelled-1-transgenic mice were crossed with CaMKIIδγ double-knockout mice. These mice displayed a normal cardiac phenotype without cardiac hypertrophy, fibrosis, apoptosis, or left ventricular dysfunction. Further mechanistic analyses unveiled that CaMKIIδγ couples noncanonical Wnt signaling to histone deacetylase 4 and myosin enhancer factor 2. Therefore, our findings indicate that the axis, consisting of dishevelled-1, CaMKII, histone deacetylase 4, and myosin enhancer factor 2, is an attractive therapeutic target for prevention of cardiac remodeling and its progression to left ventricular dysfunction.
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Affiliation(s)
- Min Zhang
- From the Department of Cardiology, Angiology, and Pulmology (M.Z., M.H., J.H.R., M.M.K., E.B., J.F., H.A.K., S.E.H.) and Research Unit Cardiac Epigenetics, Department of Cardiology (M.M.K., J.B.), University of Heidelberg, Heidelberg, Germany; Institute of Cardiology, Union Hospital, Tongji Medical College of Huazhong University of Science and Technology, Wuhan, China (M.Z.); DZHK (German Center for Cardiovascular Research) (M.H., J.H.R., M.M.K., H.A.K., S.E.H., M.M.K., J.B.), Partner Site Heidelberg/Mannheim, Heidelberg, Germany; and Center for Cardiac and Circulatory Diseases, Bruchsal, Germany (S.E.H.)
| | - Marco Hagenmueller
- From the Department of Cardiology, Angiology, and Pulmology (M.Z., M.H., J.H.R., M.M.K., E.B., J.F., H.A.K., S.E.H.) and Research Unit Cardiac Epigenetics, Department of Cardiology (M.M.K., J.B.), University of Heidelberg, Heidelberg, Germany; Institute of Cardiology, Union Hospital, Tongji Medical College of Huazhong University of Science and Technology, Wuhan, China (M.Z.); DZHK (German Center for Cardiovascular Research) (M.H., J.H.R., M.M.K., H.A.K., S.E.H., M.M.K., J.B.), Partner Site Heidelberg/Mannheim, Heidelberg, Germany; and Center for Cardiac and Circulatory Diseases, Bruchsal, Germany (S.E.H.)
| | - Johannes H Riffel
- From the Department of Cardiology, Angiology, and Pulmology (M.Z., M.H., J.H.R., M.M.K., E.B., J.F., H.A.K., S.E.H.) and Research Unit Cardiac Epigenetics, Department of Cardiology (M.M.K., J.B.), University of Heidelberg, Heidelberg, Germany; Institute of Cardiology, Union Hospital, Tongji Medical College of Huazhong University of Science and Technology, Wuhan, China (M.Z.); DZHK (German Center for Cardiovascular Research) (M.H., J.H.R., M.M.K., H.A.K., S.E.H., M.M.K., J.B.), Partner Site Heidelberg/Mannheim, Heidelberg, Germany; and Center for Cardiac and Circulatory Diseases, Bruchsal, Germany (S.E.H.)
| | - Michael M Kreusser
- From the Department of Cardiology, Angiology, and Pulmology (M.Z., M.H., J.H.R., M.M.K., E.B., J.F., H.A.K., S.E.H.) and Research Unit Cardiac Epigenetics, Department of Cardiology (M.M.K., J.B.), University of Heidelberg, Heidelberg, Germany; Institute of Cardiology, Union Hospital, Tongji Medical College of Huazhong University of Science and Technology, Wuhan, China (M.Z.); DZHK (German Center for Cardiovascular Research) (M.H., J.H.R., M.M.K., H.A.K., S.E.H., M.M.K., J.B.), Partner Site Heidelberg/Mannheim, Heidelberg, Germany; and Center for Cardiac and Circulatory Diseases, Bruchsal, Germany (S.E.H.)
| | - Elmar Bernhold
- From the Department of Cardiology, Angiology, and Pulmology (M.Z., M.H., J.H.R., M.M.K., E.B., J.F., H.A.K., S.E.H.) and Research Unit Cardiac Epigenetics, Department of Cardiology (M.M.K., J.B.), University of Heidelberg, Heidelberg, Germany; Institute of Cardiology, Union Hospital, Tongji Medical College of Huazhong University of Science and Technology, Wuhan, China (M.Z.); DZHK (German Center for Cardiovascular Research) (M.H., J.H.R., M.M.K., H.A.K., S.E.H., M.M.K., J.B.), Partner Site Heidelberg/Mannheim, Heidelberg, Germany; and Center for Cardiac and Circulatory Diseases, Bruchsal, Germany (S.E.H.)
| | - Jingjing Fan
- From the Department of Cardiology, Angiology, and Pulmology (M.Z., M.H., J.H.R., M.M.K., E.B., J.F., H.A.K., S.E.H.) and Research Unit Cardiac Epigenetics, Department of Cardiology (M.M.K., J.B.), University of Heidelberg, Heidelberg, Germany; Institute of Cardiology, Union Hospital, Tongji Medical College of Huazhong University of Science and Technology, Wuhan, China (M.Z.); DZHK (German Center for Cardiovascular Research) (M.H., J.H.R., M.M.K., H.A.K., S.E.H., M.M.K., J.B.), Partner Site Heidelberg/Mannheim, Heidelberg, Germany; and Center for Cardiac and Circulatory Diseases, Bruchsal, Germany (S.E.H.)
| | - Hugo A Katus
- From the Department of Cardiology, Angiology, and Pulmology (M.Z., M.H., J.H.R., M.M.K., E.B., J.F., H.A.K., S.E.H.) and Research Unit Cardiac Epigenetics, Department of Cardiology (M.M.K., J.B.), University of Heidelberg, Heidelberg, Germany; Institute of Cardiology, Union Hospital, Tongji Medical College of Huazhong University of Science and Technology, Wuhan, China (M.Z.); DZHK (German Center for Cardiovascular Research) (M.H., J.H.R., M.M.K., H.A.K., S.E.H., M.M.K., J.B.), Partner Site Heidelberg/Mannheim, Heidelberg, Germany; and Center for Cardiac and Circulatory Diseases, Bruchsal, Germany (S.E.H.)
| | - Johannes Backs
- From the Department of Cardiology, Angiology, and Pulmology (M.Z., M.H., J.H.R., M.M.K., E.B., J.F., H.A.K., S.E.H.) and Research Unit Cardiac Epigenetics, Department of Cardiology (M.M.K., J.B.), University of Heidelberg, Heidelberg, Germany; Institute of Cardiology, Union Hospital, Tongji Medical College of Huazhong University of Science and Technology, Wuhan, China (M.Z.); DZHK (German Center for Cardiovascular Research) (M.H., J.H.R., M.M.K., H.A.K., S.E.H., M.M.K., J.B.), Partner Site Heidelberg/Mannheim, Heidelberg, Germany; and Center for Cardiac and Circulatory Diseases, Bruchsal, Germany (S.E.H.)
| | - Stefan E Hardt
- From the Department of Cardiology, Angiology, and Pulmology (M.Z., M.H., J.H.R., M.M.K., E.B., J.F., H.A.K., S.E.H.) and Research Unit Cardiac Epigenetics, Department of Cardiology (M.M.K., J.B.), University of Heidelberg, Heidelberg, Germany; Institute of Cardiology, Union Hospital, Tongji Medical College of Huazhong University of Science and Technology, Wuhan, China (M.Z.); DZHK (German Center for Cardiovascular Research) (M.H., J.H.R., M.M.K., H.A.K., S.E.H., M.M.K., J.B.), Partner Site Heidelberg/Mannheim, Heidelberg, Germany; and Center for Cardiac and Circulatory Diseases, Bruchsal, Germany (S.E.H.).
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Blagodatski A, Poteryaev D, Katanaev VL. Targeting the Wnt pathways for therapies. MOLECULAR AND CELLULAR THERAPIES 2014; 2:28. [PMID: 26056595 PMCID: PMC4452063 DOI: 10.1186/2052-8426-2-28] [Citation(s) in RCA: 102] [Impact Index Per Article: 10.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/22/2014] [Accepted: 09/05/2014] [Indexed: 12/16/2022]
Abstract
The Wnt/β-catenin signaling pathway is crucial in animal development from sponges to humans. Its activity in the adulthood is less general, with exceptions having huge medical importance. Namely, improper activation of this pathway is carcinogenic in many tissues, most notably in the colon, liver and the breast. On the other hand, the Wnt/β-catenin signaling must be re-activated in cases of tissue damage, and insufficient activation results in regeneration failure and degeneration. These both medically important implications are unified by the emerging importance of this signaling pathway in the control of proliferation of various types of stem cells, crucial for tissue regeneration and, in case of cancer stem cells – cancer progression and relapse. This article aims at briefly reviewing the current state of knowledge in the field of Wnt signaling, followed by a detailed discussion of current medical developments targeting distinct branches of the Wnt pathway for anti-cancer and pro-regeneration therapies.
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Affiliation(s)
- Artem Blagodatski
- Institute of Protein Research, Russian Academy of Sciences, Pushchino, Russian Federation
| | | | - Vladimir L Katanaev
- Department of Pharmacology and Toxicology, University of Lausanne, Lausanne, Switzerland
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24
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Is Alzheimer's disease related to metabolic syndrome? A Wnt signaling conundrum. Prog Neurobiol 2014; 121:125-46. [PMID: 25084549 DOI: 10.1016/j.pneurobio.2014.07.004] [Citation(s) in RCA: 81] [Impact Index Per Article: 8.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2014] [Revised: 07/17/2014] [Accepted: 07/23/2014] [Indexed: 01/07/2023]
Abstract
Alzheimer's disease (AD) is the most common cause of dementia, affecting more than 36 million people worldwide. AD is characterized by a progressive loss of cognitive functions. For years, it has been thought that age is the main risk factor for AD. Recent studies suggest that life style factors, including nutritional behaviors, play a critical role in the onset of dementia. Evidence about the relationship between nutritional behavior and AD includes the role of conditions such as obesity, hypertension, dyslipidemia and elevated glucose levels. The coexistence of some of these cardio-metabolic risk factors is generally known as metabolic syndrome (MS). Some clinical studies support the role of MS in the onset of AD. However, the cross-talk between the molecular signaling implicated in these disorders is unknown. In the present review, we focus on the molecular correlates that support the relationship between MS and the onset of AD. We also discuss relevant issues such as the role of leptin, insulin and renin-angiotensin signaling in the brain and the possible role of Wnt signaling in both MS and AD. We discuss the evidence supporting the use of ob/ob mice, high-fructose diets, aortic coarctation-induced hypertension and Octodon degus, which spontaneously develops β-amyloid deposits and metabolic derangements, as suitable animal models to address the relationships between MS and AD. Finally, we examine emergent data supporting the role of Wnt signaling in the modulation of AD and MS, implicating this pathway as a therapeutic target in both conditions.
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25
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Building and repairing the heart: what can we learn from embryonic development? BIOMED RESEARCH INTERNATIONAL 2014; 2014:679168. [PMID: 24864252 PMCID: PMC4016833 DOI: 10.1155/2014/679168] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/06/2014] [Accepted: 02/20/2014] [Indexed: 01/22/2023]
Abstract
Mammalian heart formation is a complex morphogenetic event that depends on the correct temporal and spatial contribution of distinct cell sources. During cardiac formation, cellular specification, differentiation, and rearrangement are tightly regulated by an intricate signaling network. Over the last years, many aspects of this network have been uncovered not only due to advances in cardiac development comprehension but also due to the use of embryonic stem cells (ESCs) in vitro model system. Additionally, several of these pathways have been shown to be functional or reactivated in the setting of cardiac disease. Knowledge withdrawn from studying heart development, ESCs differentiation, and cardiac pathophysiology may be helpful to envisage new strategies for improved cardiac repair/regeneration. In this review, we provide a comparative synopsis of the major signaling pathways required for cardiac lineage commitment in the embryo and murine ESCs. The involvement and possible reactivation of these pathways following heart injury and their role in tissue recovery will also be discussed.
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Abstract
The adult mammalian heart predominantly comprises myocytes, fibroblasts, endothelial cells, smooth muscle cells, and epicardial cells arranged in a precise three-dimensional framework. Following cardiac injury, the spatial arrangement of cells is disrupted as different populations of cells are recruited to the heart in a temporally regulated manner. The alteration of the cellular composition of the heart after cardiac injury thus enables different phenotypes of cells to interact with each other in a spatio-temporal-dependent manner. It can be argued that the integrated study of such cellular interactions rather than the examination of single populations of cells can provide more insights into the biology of cardiac repair especially at an organ-wide level. Many signalling systems undoubtedly mediate such cross talk between cells after cardiac injury. The Wnt/β-catenin system plays an important role during cardiac development and disease. Here, we describe how cell populations in the heart after cardiac injury mediate their interactions via the Wnt/β-catenin pathway, determine how such interactions can affect a cardiac repair response and finally suggest an integrated approach to study cardiac cellular interactions.
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Affiliation(s)
- Arjun Deb
- Division of Cardiology, Department of Medicine, Cardiovascular Research Laboratory, Eli and Edythe Broad Center for Regenerative Medicine and Stem Cell Research, Jonsson Comprehensive Cancer Center, Molecular Biology Institute, Programs in Molecular Cellular and Integrative Physiology and Cell and Developmental Biology, David Geffen School of Medicine, University of California, Los Angeles, 675 Charles E Young Drive S, MRL 3609, Los Angeles, CA 90095, USA
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27
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The small molecule Wnt signaling modulator ICG-001 improves contractile function in chronically infarcted rat myocardium. PLoS One 2013; 8:e75010. [PMID: 24069374 PMCID: PMC3771968 DOI: 10.1371/journal.pone.0075010] [Citation(s) in RCA: 66] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2013] [Accepted: 08/09/2013] [Indexed: 12/23/2022] Open
Abstract
The adult mammalian heart has limited capability for self-repair after myocardial infarction. Therefore, therapeutic strategies that improve post-infarct cardiac function are critically needed. The small molecule ICG-001 modulates Wnt signaling and increased the expression of genes beneficial for cardiac regeneration in epicardial cells. Lineage tracing experiments, demonstrated the importance of β-catenin/p300 mediated transcription for epicardial progenitor contribution to the myocardium. Female rats given ICG-001 for 10 days post-occlusion significantly improved ejection fraction by 8.4%, compared to controls (P<0.05). Taken together, Wnt modulation via β-catenin/CBP inhibition offers a promising therapeutic strategy towards restoration of myocardial tissues and an enhancement of cardiac functions following infarction.
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