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Li X, Ding Y, Zhou M, Zhou Z, Xie T, Wang Y, Liu Z, Si Y, Shi Z. Deficiency of thrombospondin-2 alleviates intimal hyperplasia in mice by modulating vascular smooth muscle cell proliferation and migration. FASEB J 2023; 37:e22743. [PMID: 36645109 DOI: 10.1096/fj.202201040r] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2022] [Revised: 11/29/2022] [Accepted: 12/16/2022] [Indexed: 01/17/2023]
Abstract
Thrombospondin-2 (Tsp2), a glycoprotein in the extracellular matrix, plays a critical role in the maintenance of vascular homeostasis. However, its role in the pathogenesis of cardiovascular disorders such as intimal hyperplasia is not fully elucidated. This study, therefore, aims to explore the effect of Tsp2 on intimal hyperplasia and its associated underlying mechanisms. Intimal hyperplasia (IH) was established using a modified wire-mediated femoral artery injury model. Immunofluorescence and qPCR identified upregulated Tsp2 expression in the injured femoral artery compared with the uninjured femoral artery. Similarly, TSP2 expression was also increased in human samples from the atherosclerotic femoral artery and colocalized with vascular smooth muscle cells (VSMCs). Compared with the wild-type littermates, Tsp2 knockout mice displayed a mitigated IH in the injured femoral artery, as demonstrated by a decreased neointimal area and intimal/median ratio. Primary mouse VSMCs were cultured to explore the mechanism by which Tsp2 influenced IH in vitro. PDGF-stimulated VSMCs presented an elevated Tsp2 expression and enhanced migration and proliferation. However, Tsp2 knockdown by siRNA blocked the increased migration and proliferation of VSMCs. Further analysis identified an association between Notch3 and IH when the intracellular domain of Notch3 (Nicd3) was upregulated in PDGF-stimulated VSMCs and femoral arteries with IH in human tissues. Along with the overexpression and downregulation of Tsp2, the Nicd3 expression was also up and downregulated accordingly. Tsp2 was associated with IH and may serve as a therapeutic target for IH. Downregulation of Tsp2 could mitigate the progression of IH by modulating the proliferation and migration of VSMCs.
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Affiliation(s)
- Xu Li
- Department of Vascular Surgery, Zhongshan Hospital, Fudan University, Shanghai, China.,Institute of Vascular Surgery, Fudan University, Shanghai, China.,National Clinical Research Center for Interventional Medicine, Shanghai, China
| | - Yong Ding
- Department of Vascular Surgery, Zhongshan Hospital, Fudan University, Shanghai, China.,Institute of Vascular Surgery, Fudan University, Shanghai, China.,National Clinical Research Center for Interventional Medicine, Shanghai, China
| | - Min Zhou
- Department of Vascular Surgery, Zhongshan Hospital, Fudan University, Shanghai, China.,Institute of Vascular Surgery, Fudan University, Shanghai, China.,National Clinical Research Center for Interventional Medicine, Shanghai, China
| | - Zhenyu Zhou
- Department of Vascular Surgery, Zhongshan Hospital, Fudan University, Shanghai, China.,Institute of Vascular Surgery, Fudan University, Shanghai, China.,National Clinical Research Center for Interventional Medicine, Shanghai, China
| | - Tianchen Xie
- Department of Vascular Surgery, Zhongshan Hospital, Fudan University, Shanghai, China.,Institute of Vascular Surgery, Fudan University, Shanghai, China.,National Clinical Research Center for Interventional Medicine, Shanghai, China
| | - Yonggang Wang
- Department of Vascular Surgery, Zhongshan Hospital, Fudan University, Shanghai, China.,Institute of Vascular Surgery, Fudan University, Shanghai, China.,National Clinical Research Center for Interventional Medicine, Shanghai, China
| | - Zhenjie Liu
- Department of Vascular Surgery, The Second Affiliated Hospital of Zhejiang University School of Medicine, Hangzhou, China
| | - Yi Si
- Department of Vascular Surgery, Zhongshan Hospital, Fudan University, Shanghai, China.,Institute of Vascular Surgery, Fudan University, Shanghai, China.,National Clinical Research Center for Interventional Medicine, Shanghai, China
| | - Zhenyu Shi
- Department of Vascular Surgery, Zhongshan Hospital, Fudan University, Shanghai, China.,Institute of Vascular Surgery, Fudan University, Shanghai, China.,National Clinical Research Center for Interventional Medicine, Shanghai, China
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2
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The Vascular Niche for Adult Cardiac Progenitor Cells. Antioxidants (Basel) 2022; 11:antiox11050882. [PMID: 35624750 PMCID: PMC9137669 DOI: 10.3390/antiox11050882] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2022] [Revised: 04/25/2022] [Accepted: 04/28/2022] [Indexed: 01/27/2023] Open
Abstract
Research on cardiac progenitor cell populations has generated expectations about their potential for cardiac regeneration capacity after acute myocardial infarction and during physiological aging; however, the endogenous capacity of the adult mammalian heart is limited. The modest efficacy of exogenous cell-based treatments can guide the development of new approaches that, alone or in combination, can be applied to boost clinical efficacy. The identification and manipulation of the adult stem cell environment, termed niche, will be critical for providing new evidence on adult stem cell populations and improving stem-cell-based therapies. Here, we review and discuss the state of our understanding of the interaction of adult cardiac progenitor cells with other cardiac cell populations, with a focus on the description of the B-CPC progenitor population (Bmi1+ cardiac progenitor cell), which is a strong candidate progenitor for all main cardiac cell lineages, both in the steady state and after cardiac damage. The set of all interactions should be able to define the vascular cardiac stem cell niche, which is associated with low oxidative stress domains in vasculature, and whose manipulation would offer new hope in the cardiac regeneration field.
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3
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Mannino G, Russo C, Maugeri G, Musumeci G, Vicario N, Tibullo D, Giuffrida R, Parenti R, Lo Furno D. Adult stem cell niches for tissue homeostasis. J Cell Physiol 2021; 237:239-257. [PMID: 34435361 PMCID: PMC9291197 DOI: 10.1002/jcp.30562] [Citation(s) in RCA: 47] [Impact Index Per Article: 15.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2021] [Revised: 07/26/2021] [Accepted: 08/09/2021] [Indexed: 12/13/2022]
Abstract
Adult stem cells are fundamental to maintain tissue homeostasis, growth, and regeneration. They reside in specialized environments called niches. Following activating signals, they proliferate and differentiate into functional cells that are able to preserve tissue physiology, either to guarantee normal turnover or to counteract tissue damage caused by injury or disease. Multiple interactions occur within the niche between stem cell‐intrinsic factors, supporting cells, the extracellular matrix, and signaling pathways. Altogether, these interactions govern cell fate, preserving the stem cell pool, and regulating stem cell proliferation and differentiation. Based on their response to body needs, tissues can be largely classified into three main categories: tissues that even in normal conditions are characterized by an impressive turnover to replace rapidly exhausting cells (blood, epidermis, or intestinal epithelium); tissues that normally require only a basal cell replacement, though able to efficiently respond to increased tissue needs, injury, or disease (skeletal muscle); tissues that are equipped with less powerful stem cell niches, whose repairing ability is not able to overcome severe damage (heart or nervous tissue). The purpose of this review is to describe the main characteristics of stem cell niches in these different tissues, highlighting the various components influencing stem cell activity. Although much has been done, more work is needed to further increase our knowledge of niche interactions. This would be important not only to shed light on this fundamental chapter of human physiology but also to help the development of cell‐based strategies for clinical therapeutic applications, especially when other approaches fail.
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Affiliation(s)
- Giuliana Mannino
- Department of Biomedical and Biotechnological Sciences, University of Catania, Catania, Italy
| | - Cristina Russo
- Department of Biomedical and Biotechnological Sciences, University of Catania, Catania, Italy
| | - Grazia Maugeri
- Department of Biomedical and Biotechnological Sciences, University of Catania, Catania, Italy
| | - Giuseppe Musumeci
- Department of Biomedical and Biotechnological Sciences, University of Catania, Catania, Italy
| | - Nunzio Vicario
- Department of Biomedical and Biotechnological Sciences, University of Catania, Catania, Italy
| | - Daniele Tibullo
- Department of Biomedical and Biotechnological Sciences, University of Catania, Catania, Italy
| | - Rosario Giuffrida
- Department of Biomedical and Biotechnological Sciences, University of Catania, Catania, Italy
| | - Rosalba Parenti
- Department of Biomedical and Biotechnological Sciences, University of Catania, Catania, Italy
| | - Debora Lo Furno
- Department of Biomedical and Biotechnological Sciences, University of Catania, Catania, Italy
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4
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Zhang K, Li M, Yin L, Fu G, Liu Z. Role of thrombospondin‑1 and thrombospondin‑2 in cardiovascular diseases (Review). Int J Mol Med 2020; 45:1275-1293. [PMID: 32323748 PMCID: PMC7138268 DOI: 10.3892/ijmm.2020.4507] [Citation(s) in RCA: 27] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2019] [Accepted: 01/22/2020] [Indexed: 12/13/2022] Open
Abstract
Thrombospondin (TSP)-1 and TSP-2 are matricellular proteins in the extracellular matrix (ECM), which serve a significant role in the pathological processes of various cardiovascular diseases (CVDs). The multiple effects of TSP-1 and TSP-2 are due to their ability to interact with various ligands, such as structural components of the ECM, cytokines, cellular receptors, growth factors, proteases and other stromal cell proteins. TSP-1 and TSP-2 regulate the structure and activity of the aforementioned ligands by interacting directly or indirectly with them, thereby regulating the activity of different types of cells in response to environmental stimuli. The pathological processes of numerous CVDs are associated with the degradation and remodeling of ECM components, and with cell migration, dysfunction and apoptosis, which may be regulated by TSP-1 and TSP-2 through different mechanisms. Therefore, investigating the role of TSP-1 and TSP-2 in different CVDs and the potential signaling pathways they are associated with may provide a new perspective on potential therapies for the treatment of CVDs. In the present review, the current understanding of the roles TSP-1 and TSP-2 serve in various CVDs were summarized. In addition, the interacting ligands and the potential pathways associated with these thrombospondins in CVDs are also discussed.
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Affiliation(s)
- Kaijie Zhang
- Department of Vascular Surgery, The Second Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, Zhejiang 310009, P.R. China
| | - Miaomiao Li
- Department of Vascular Surgery, The Second Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, Zhejiang 310009, P.R. China
| | - Li Yin
- Department of Vascular Surgery, The Second Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, Zhejiang 310009, P.R. China
| | - Guosheng Fu
- Department of Cardiology, Sir Run Run Shaw Hospital, School of Medicine, Zhejiang University, Hangzhou, Zhejiang 310016, P.R. China
| | - Zhenjie Liu
- Department of Vascular Surgery, The Second Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, Zhejiang 310009, P.R. China
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5
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Phakdeedindan P, Setthawong P, Tiptanavattana N, Rungarunlert S, Ingrungruanglert P, Israsena N, Techakumphu M, Tharasanit T. Rabbit induced pluripotent stem cells retain capability of in vitro cardiac differentiation. Exp Anim 2019; 68:35-47. [PMID: 30089733 PMCID: PMC6389514 DOI: 10.1538/expanim.18-0074] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2018] [Accepted: 07/10/2018] [Indexed: 12/12/2022] Open
Abstract
Stem cells are promising cell source for treatment of multiple diseases as well as myocardial infarction. Rabbit model has essentially used for cardiovascular diseases and regeneration but information on establishment of induced pluripotent stem cells (iPSCs) and differentiation potential is fairly limited. In addition, there is no report of cardiac differentiation from iPSCs in the rabbit model. In this study, we generated rabbit iPSCs by reprogramming rabbit fibroblasts using the 4 transcription factors (OCT3/4, SOX2, KLF4, and c-Myc). Three iPSC lines were established. The iPSCs from all cell lines expressed genes (OCT3/4, SOX2, KLF4 and NANOG) and proteins (alkaline phosphatase, OCT-3/4 and SSEA-4) essentially described for pluripotency (in vivo and in vitro differentiation). Furthermore, they also had ability to form embryoid body (EB) resulting in three-germ layer differentiation. However, ability of particular cell lines and cell numbers at seeding markedly influenced on EB formation and also their diameters. The cell density at 20,000 cells per EB was selected for cardiac differentiation. After plating, the EBs attached and cardiac-like beating areas were seen as soon as 11 days of culture. The differentiated cells expressed cardiac progenitor marker FLK1 (51 ± 1.48%) on day 5 and cardiac troponin-T protein (10.29 ± 1.37%) on day 14. Other cardiac marker genes (cardiac ryanodine receptors (RYR2), α-actinin and PECAM1) were also expressed. This study concluded that rabbit iPSCs remained their in vitro pluripotency with capability of differentiation into mature-phenotype cardiomyocytes. However, the efficiency of cardiac differentiation is still restricted.
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Affiliation(s)
- Praopilas Phakdeedindan
- Biochemistry Unit, Department of Physiology, Faculty of Veterinary Science, Chulalongkorn University, 39 Henri-Dunant Rd., Pathumwan, Bangkok 10330, Thailand
| | - Piyathip Setthawong
- Department of Obstetrics, Gynaecology and Reproduction, Faculty of Veterinary Science, Chulalongkorn University, 39 Henri-Dunant Rd., Pathumwan, Bangkok 10330, Thailand
| | - Narong Tiptanavattana
- Faculty of Veterinary Science, Prince of Songkla University, 15 Kanjanavanich Road, Hat Yai Songkhla 90110, Thailand
| | - Sasitorn Rungarunlert
- Faculty of Veterinary Science, Mahidol University, 999 Phutthamonthon Sai 4 Road, Nakhonpathom, 73170, Thailand
| | - Praewphan Ingrungruanglert
- Stem Cells and Cell Therapy Research Unit, Faculty of Medicine, Chulalongkorn University, 1873 Henri-Dunant Rd., Pathumwan, Bangkok 10330, Thailand
| | - Nipan Israsena
- Stem Cells and Cell Therapy Research Unit, Faculty of Medicine, Chulalongkorn University, 1873 Henri-Dunant Rd., Pathumwan, Bangkok 10330, Thailand
| | - Mongkol Techakumphu
- Department of Obstetrics, Gynaecology and Reproduction, Faculty of Veterinary Science, Chulalongkorn University, 39 Henri-Dunant Rd., Pathumwan, Bangkok 10330, Thailand
| | - Theerawat Tharasanit
- Department of Obstetrics, Gynaecology and Reproduction, Faculty of Veterinary Science, Chulalongkorn University, 39 Henri-Dunant Rd., Pathumwan, Bangkok 10330, Thailand
- The Research and Development Center for Livestock Production Technology at the Faculty of Veterinary Science, Chulalongkorn University, Thailand
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6
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Maring JA, Lodder K, Mol E, Verhage V, Wiesmeijer KC, Dingenouts CKE, Moerkamp AT, Deddens JC, Vader P, Smits AM, Sluijter JPG, Goumans MJ. Cardiac Progenitor Cell-Derived Extracellular Vesicles Reduce Infarct Size and Associate with Increased Cardiovascular Cell Proliferation. J Cardiovasc Transl Res 2018; 12:5-17. [PMID: 30456736 PMCID: PMC6394631 DOI: 10.1007/s12265-018-9842-9] [Citation(s) in RCA: 45] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/29/2018] [Accepted: 10/23/2018] [Indexed: 12/13/2022]
Abstract
Cell transplantation studies have shown that injection of progenitor cells can improve cardiac function after myocardial infarction (MI). Transplantation of human cardiac progenitor cells (hCPCs) results in an increased ejection fraction, but survival and integration are low. Therefore, paracrine factors including extracellular vesicles (EVs) are likely to contribute to the beneficial effects. We investigated the contribution of EVs by transplanting hCPCs with reduced EV secretion. Interestingly, these hCPCs were unable to reduce infarct size post-MI. Moreover, injection of hCPC-EVs did significantly reduce infarct size. Analysis of EV uptake showed cardiomyocytes and endothelial cells primarily positive and a higher Ki67 expression in these cell types. Yes-associated protein (YAP), a proliferation marker associated with Ki67, was also increased in the entire infarcted area. In summary, our data suggest that EV secretion is the driving force behind the short-term beneficial effect of hCPC transplantation on cardiac recovery after MI.
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Affiliation(s)
- Janita A Maring
- Laboratory of Cardiovascular Cell Biology, Department of Cell and Chemical Biology, Leiden University Medical Centre, Leiden, The Netherlands
| | - Kirsten Lodder
- Laboratory of Cardiovascular Cell Biology, Department of Cell and Chemical Biology, Leiden University Medical Centre, Leiden, The Netherlands
| | - Emma Mol
- Laboratory of Experimental Cardiology, University Medical Center Utrecht, University Utrecht, Utrecht, The Netherlands
| | - Vera Verhage
- Laboratory of Experimental Cardiology, University Medical Center Utrecht, University Utrecht, Utrecht, The Netherlands
| | - Karien C Wiesmeijer
- Laboratory of Cardiovascular Cell Biology, Department of Cell and Chemical Biology, Leiden University Medical Centre, Leiden, The Netherlands
| | - Calinda K E Dingenouts
- Laboratory of Cardiovascular Cell Biology, Department of Cell and Chemical Biology, Leiden University Medical Centre, Leiden, The Netherlands
| | - Asja T Moerkamp
- Laboratory of Cardiovascular Cell Biology, Department of Cell and Chemical Biology, Leiden University Medical Centre, Leiden, The Netherlands
| | - Janine C Deddens
- Laboratory of Experimental Cardiology, University Medical Center Utrecht, University Utrecht, Utrecht, The Netherlands
| | - Pieter Vader
- Laboratory of Experimental Cardiology, University Medical Center Utrecht, University Utrecht, Utrecht, The Netherlands.,Department of Clinical Chemistry and Hematology, University Medical Center Utrecht, Utrecht, The Netherlands
| | - Anke M Smits
- Laboratory of Cardiovascular Cell Biology, Department of Cell and Chemical Biology, Leiden University Medical Centre, Leiden, The Netherlands
| | - Joost P G Sluijter
- Laboratory of Experimental Cardiology, University Medical Center Utrecht, University Utrecht, Utrecht, The Netherlands.,UMC Utrecht Regenerative Medicine Center, University Medical Center Utrecht, Utrecht, The Netherlands
| | - Marie-José Goumans
- Laboratory of Cardiovascular Cell Biology, Department of Cell and Chemical Biology, Leiden University Medical Centre, Leiden, The Netherlands.
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7
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Klopsch C, Skorska A, Ludwig M, Lemcke H, Maass G, Gaebel R, Beyer M, Lux C, Toelk A, Müller K, Maschmeier C, Rohde S, Mela P, Müller-Hilke B, Jockenhoevel S, Vollmar B, Jaster R, David R, Steinhoff G. Intramyocardial angiogenetic stem cells and epicardial erythropoietin save the acute ischemic heart. Dis Model Mech 2018; 11:dmm.033282. [PMID: 29752300 PMCID: PMC6031356 DOI: 10.1242/dmm.033282] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2017] [Accepted: 04/26/2018] [Indexed: 12/14/2022] Open
Abstract
Ischemic heart failure is the leading cause of mortality worldwide. An early boost of intracardiac regenerative key mechanisms and angiogenetic niche signaling in cardiac mesenchymal stem cells (MSCs) could improve myocardial infarction (MI) healing. Epicardial erythropoietin (EPO; 300 U kg-1) was compared with intraperitoneal and intramyocardial EPO treatments after acute MI in rats (n=156). Real-time PCR and confocal microscopy revealed that epicardial EPO treatment enhanced levels of intracardiac regenerative key indicators (SDF-1, CXCR4, CD34, Bcl-2, cyclin D1, Cdc2 and MMP2), induced transforming growth factor β (TGF-β)/WNT signaling in intramyocardial MSC niches through the direct activation of AKT and upregulation of upstream signals FOS and Fzd7, and augmented intracardiac mesenchymal proliferation 24 h after MI. Cardiac catheterization and tissue analysis showed superior cardiac functions, beneficial remodeling and increased capillary density 6 weeks after MI. Concomitant fluorescence-activated cell sorting, co-cultures with neonatal cardiomyocytes, angiogenesis assays, ELISA, western blotting and RAMAN spectroscopy demonstrated that EPO could promote cardiomyogenic differentiation that was specific of tissue origin and enhance paracrine angiogenetic activity in cardiac CD45-CD44+DDR2+ MSCs. Epicardial EPO delivery might be the optimal route for efficient upregulation of regenerative key signals after acute MI. Early EPO-mediated stimulation of mesenchymal proliferation, synergistic angiogenesis with cardiac MSCs and direct induction of TGF-β/WNT signaling in intramyocardial cardiac MSCs could initiate an accelerated healing process that enhances cardiac recovery.
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Affiliation(s)
- Christian Klopsch
- Reference and Translation Center for Cardiac Stem Cell Therapy, Rostock University Medical Center, 18055 Rostock, Germany .,Department of Cardiac Surgery, Heart Center Rostock, University of Rostock, 18055 Rostock, Germany
| | - Anna Skorska
- Reference and Translation Center for Cardiac Stem Cell Therapy, Rostock University Medical Center, 18055 Rostock, Germany.,Department of Cardiac Surgery, Heart Center Rostock, University of Rostock, 18055 Rostock, Germany
| | - Marion Ludwig
- Reference and Translation Center for Cardiac Stem Cell Therapy, Rostock University Medical Center, 18055 Rostock, Germany.,Department of Cardiac Surgery, Heart Center Rostock, University of Rostock, 18055 Rostock, Germany
| | - Heiko Lemcke
- Reference and Translation Center for Cardiac Stem Cell Therapy, Rostock University Medical Center, 18055 Rostock, Germany.,Department of Cardiac Surgery, Heart Center Rostock, University of Rostock, 18055 Rostock, Germany
| | - Gabriela Maass
- Reference and Translation Center for Cardiac Stem Cell Therapy, Rostock University Medical Center, 18055 Rostock, Germany.,Department of Cardiac Surgery, Heart Center Rostock, University of Rostock, 18055 Rostock, Germany
| | - Ralf Gaebel
- Reference and Translation Center for Cardiac Stem Cell Therapy, Rostock University Medical Center, 18055 Rostock, Germany.,Department of Cardiac Surgery, Heart Center Rostock, University of Rostock, 18055 Rostock, Germany
| | - Martin Beyer
- Reference and Translation Center for Cardiac Stem Cell Therapy, Rostock University Medical Center, 18055 Rostock, Germany.,Department of Cardiac Surgery, Heart Center Rostock, University of Rostock, 18055 Rostock, Germany
| | - Cornelia Lux
- Reference and Translation Center for Cardiac Stem Cell Therapy, Rostock University Medical Center, 18055 Rostock, Germany.,Department of Cardiac Surgery, Heart Center Rostock, University of Rostock, 18055 Rostock, Germany
| | - Anita Toelk
- Reference and Translation Center for Cardiac Stem Cell Therapy, Rostock University Medical Center, 18055 Rostock, Germany.,Department of Cardiac Surgery, Heart Center Rostock, University of Rostock, 18055 Rostock, Germany
| | - Karina Müller
- Reference and Translation Center for Cardiac Stem Cell Therapy, Rostock University Medical Center, 18055 Rostock, Germany.,Department of Cardiac Surgery, Heart Center Rostock, University of Rostock, 18055 Rostock, Germany
| | - Christian Maschmeier
- Reference and Translation Center for Cardiac Stem Cell Therapy, Rostock University Medical Center, 18055 Rostock, Germany.,Department of Cardiac Surgery, Heart Center Rostock, University of Rostock, 18055 Rostock, Germany
| | - Sarah Rohde
- Division of Gastroenterology, Department of Medicine II, Rostock University Medical Center, 18055 Rostock, Germany
| | - Petra Mela
- Department of Tissue Engineering and Textile Implants, AME-Helmholtz Institute for Biomedical Engineering, RWTH Aachen University, 52074 Aachen, Germany
| | - Brigitte Müller-Hilke
- Institute of Immunology & Core Facility for Cell Sorting and Cell Analysis, Rostock University Medical Center, 18055 Rostock, Germany
| | - Stefan Jockenhoevel
- Department of Tissue Engineering and Textile Implants, AME-Helmholtz Institute for Biomedical Engineering, RWTH Aachen University, 52074 Aachen, Germany
| | - Brigitte Vollmar
- Institute for Experimental Surgery, Rostock University Medical Center, 18055 Rostock, Germany
| | - Robert Jaster
- Division of Gastroenterology, Department of Medicine II, Rostock University Medical Center, 18055 Rostock, Germany
| | - Robert David
- Reference and Translation Center for Cardiac Stem Cell Therapy, Rostock University Medical Center, 18055 Rostock, Germany.,Department of Cardiac Surgery, Heart Center Rostock, University of Rostock, 18055 Rostock, Germany
| | - Gustav Steinhoff
- Reference and Translation Center for Cardiac Stem Cell Therapy, Rostock University Medical Center, 18055 Rostock, Germany.,Department of Cardiac Surgery, Heart Center Rostock, University of Rostock, 18055 Rostock, Germany
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8
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Amirrasouli MM, Shamsara M. Comparing the in vivo and in vitro effects of hypoxia (3% O 2) on directly derived cells from murine cardiac explants versus murine cardiosphere derived cells. J Stem Cells Regen Med 2018. [PMID: 29391748 PMCID: PMC5786645 DOI: 10.46582/jsrm.1302007] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
Abstract
Coronary heart disease (CHD) is still one of the main causes of death in the world, despite significant advances in clinical treatments. Stem cell transplantation methods have the potential to improve cardiac function and patients’ outcome following heart attack, but optimal cell types, cell preparation methods and cell delivery routes are yet to be developed. Mammalian hearts contain a small fraction of progenitor cells which, in culture, migrate out of the cardiac explants, known as explant-derived cell (EDCs) and contribute to spheroids known as cardiospheres (Csphs). Following further culture and cell passaging, Csphs give rise to cardiosphere-derived cells (CDCs). EDCs, Csphs and CDCs show in vitro and in vivo angiogenesis and tissue regeneration in myocardial ischemia. However, CDC and Csph formation is time consuming, expensive and not always successful. Therefore, this study aims to compare EDCs with CDCs and assess the effect of hypoxic preconditioning on their pro-angiogenic potential. The data showed that preconditioning EDCs in hypoxic cell culture enhances cell growth, viability and expression of stem cell and pro-angiogenic markers more than CDCs. In vivo experiments using a sub-dermal matrigel plug assay showed that EDCs and CDCs alone have limited pro-angiogenic potential; however, hypoxic preconditioning of EDCs and CDCs significantly enhances this process. Further research will increase our understanding of cardiac stem cell mediated angiogenesis and improve clinical therapies for myocardial infarction (MI) patients.
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Affiliation(s)
- Muhammad Mehdi Amirrasouli
- Department of Cardiovascular Medicine, Institute of Genetic Medicine, International centre for life, School of Medicine, Newcastle University, UK.,National Institute of Genetic Engineering and Biotechnology (NIGEB), Shahrak-e- Pajoohesh, 15th Km, Tehran -Karaj Highway, Tehran, Iran.,Molecular Genetics Department, Ghanoon Medial Laboratory, West Hakim highway, Tehran, Iran
| | - Mehdi Shamsara
- National Institute of Genetic Engineering and Biotechnology (NIGEB), Shahrak-e- Pajoohesh, 15th Km, Tehran -Karaj Highway, Tehran, Iran
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9
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Cardiac Progenitor Cells and the Interplay with Their Microenvironment. Stem Cells Int 2017; 2017:7471582. [PMID: 29075298 PMCID: PMC5623801 DOI: 10.1155/2017/7471582] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2017] [Accepted: 07/26/2017] [Indexed: 02/06/2023] Open
Abstract
The microenvironment plays a crucial role in the behavior of stem and progenitor cells. In the heart, cardiac progenitor cells (CPCs) reside in specific niches, characterized by key components that are altered in response to a myocardial infarction. To date, there is a lack of knowledge on these niches and on the CPC interplay with the niche components. Insight into these complex interactions and into the influence of microenvironmental factors on CPCs can be used to promote the regenerative potential of these cells. In this review, we discuss cardiac resident progenitor cells and their regenerative potential and provide an overview of the interactions of CPCs with the key elements of their niche. We focus on the interaction between CPCs and supporting cells, extracellular matrix, mechanical stimuli, and soluble factors. Finally, we describe novel approaches to modulate the CPC niche that can represent the next step in recreating an optimal CPC microenvironment and thereby improve their regeneration capacity.
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10
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Thrombospondins: A Role in Cardiovascular Disease. Int J Mol Sci 2017; 18:ijms18071540. [PMID: 28714932 PMCID: PMC5536028 DOI: 10.3390/ijms18071540] [Citation(s) in RCA: 39] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2017] [Revised: 07/05/2017] [Accepted: 07/13/2017] [Indexed: 12/16/2022] Open
Abstract
Thrombospondins (TSPs) represent extracellular matrix (ECM) proteins belonging to the TSP family that comprises five members. All TSPs have a complex multidomain structure that permits the interaction with various partners including other ECM proteins, cytokines, receptors, growth factors, etc. Among TSPs, TSP1, TSP2, and TSP4 are the most studied and functionally tested. TSP1 possesses anti-angiogenic activity and is able to activate transforming growth factor (TGF)-β, a potent profibrotic and anti-inflammatory factor. Both TSP2 and TSP4 are implicated in the control of ECM composition in hypertrophic hearts. TSP1, TSP2, and TSP4 also influence cardiac remodeling by affecting collagen production, activity of matrix metalloproteinases and TGF-β signaling, myofibroblast differentiation, cardiomyocyte apoptosis, and stretch-mediated enhancement of myocardial contraction. The development and evaluation of TSP-deficient animal models provided an option to assess the contribution of TSPs to cardiovascular pathology such as (myocardial infarction) MI, cardiac hypertrophy, heart failure, atherosclerosis, and aortic valve stenosis. Targeting of TSPs has a significant therapeutic value for treatment of cardiovascular disease. The activation of cardiac TSP signaling in stress and pressure overload may be therefore beneficial.
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Dixit P, Donnelly H, Edamatsu M, Galvin I, Bunton R, Katare R. Progenitor cells from atria, ventricle and peripheral blood of the same patients exhibit functional differences associated with cardiac repair. Int J Cardiol 2016; 228:412-421. [PMID: 27875722 DOI: 10.1016/j.ijcard.2016.11.178] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/02/2016] [Accepted: 11/06/2016] [Indexed: 12/26/2022]
Abstract
AIM Deciding the best cell type for cardiac regeneration remains a big challenge. No studies have directly compared the functional efficacy of cardiac progenitor cells (CPCs) with extra-cardiac stem cells isolated from the same patient. METHODS AND RESULTS We compared the functional characteristics of endothelial progenitor cells (EPCs), right atrial (RAA) CPCs and left ventricular (LV) CPCs isolated from the same patients (n=14). Within the same heart, RAA and LV CPCs exhibited marked differences in surface marker expression, with RAA CPCs exhibiting better expansion potential and migration properties. When subjected to hypoxia and serum starvation to simulate in vivo ischemic environment, RAA and LV CPCs exhibited similar pattern of resistance to apoptotic cell death under ischemia. Interestingly, EPCs exhibited highest resistance to apoptotic cell death, however, they also showed the lowest proliferation under hypoxia. RT-profiler array showed comparable gene expression pattern in RAA and LV CPCs, while they were differentially expressed in EPCs. Further, treating human umbilical vein endothelial cells with conditioned medium (CM) from LV showed maximum angiogenic potential, while cardiomyocytes treated with CM from RAA showed greatest survival under hypoxic conditions. CONCLUSIONS Results from this study provide the first evidence that progenitor cells from different regions exhibit functional differences within the same patient.
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Affiliation(s)
- Parul Dixit
- Department of Physiology-HeartOtago, University of Otago, Dunedin, New Zealand
| | - Hayden Donnelly
- Department of Physiology-HeartOtago, University of Otago, Dunedin, New Zealand
| | - Midori Edamatsu
- Department of Physiology-HeartOtago, University of Otago, Dunedin, New Zealand
| | - Ivor Galvin
- Department of Cardiothoracic Surgery, University of Otago, Dunedin, New Zealand
| | - Richard Bunton
- Department of Cardiothoracic Surgery, University of Otago, Dunedin, New Zealand
| | - Rajesh Katare
- Department of Physiology-HeartOtago, University of Otago, Dunedin, New Zealand.
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12
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Vrijsen KR, Maring JA, Chamuleau SAJ, Verhage V, Mol EA, Deddens JC, Metz CHG, Lodder K, van Eeuwijk ECM, van Dommelen SM, Doevendans PA, Smits AM, Goumans MJ, Sluijter JPG. Exosomes from Cardiomyocyte Progenitor Cells and Mesenchymal Stem Cells Stimulate Angiogenesis Via EMMPRIN. Adv Healthc Mater 2016; 5:2555-2565. [PMID: 27570124 DOI: 10.1002/adhm.201600308] [Citation(s) in RCA: 146] [Impact Index Per Article: 18.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2016] [Revised: 06/21/2016] [Indexed: 11/06/2022]
Abstract
To date, cellular transplantation therapy has not yet fulfilled its high expectations for cardiac repair. A major limiting factor is lack of long-term engraftment of the transplanted cells. Interestingly, transplanted cells can positively affect their environment via secreted paracrine factors, among which are extracellular vesicles, including exosomes: small bi-lipid-layered vesicles containing proteins, mRNAs, and miRNAs. An exosome-based therapy will therefore relay a plethora of effects, without some of the limiting factors of cell therapy. Since cardiomyocyte progenitor cells (CMPC) and mesenchymal stem cells (MSC) induce vessel formation and are frequently investigated for cardiac-related therapies, the pro-angiogenic properties of CMPC and MSC-derived exosome-like vesicles are investigated. Both cell types secrete exosome-like vesicles, which are efficiently taken up by endothelial cells. Endothelial cell migration and vessel formation are stimulated by these exosomes in in vitro models, mediated via ERK/Akt-signaling. Additionally, these exosomes stimulated blood vessel formation into matrigel plugs. Analysis of pro-angiogenic factors revealed high levels of extracellular matrix metalloproteinase inducer (EMMPRIN). Knockdown of EMMPRIN on CMPCs leads to a diminished pro-angiogenic effect, both in vitro and in vivo. Therefore, CMPC and MSC exosomes have powerful pro-angiogenic effects, and this effect is largely mediated via the presence of EMMPRIN on exosomes.
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Affiliation(s)
- Krijn R. Vrijsen
- Department of Cardiology; Laboratory of Experimental Cardiology; University Medical Center Utrecht; Utrecht 3584CX The Netherlands
| | - Janita A. Maring
- Department of Molecular Cell Biology; Leiden University Medical Center; 2333ZA The Netherlands
| | - Steven A. J. Chamuleau
- Department of Cardiology; Laboratory of Experimental Cardiology; University Medical Center Utrecht; Utrecht 3584CX The Netherlands
- UMC Utrecht Regenerative Medicine Center; University Medical Center; Utrecht 3584CT The Netherlands
| | - Vera Verhage
- Department of Cardiology; Laboratory of Experimental Cardiology; University Medical Center Utrecht; Utrecht 3584CX The Netherlands
| | - Emma A. Mol
- Department of Cardiology; Laboratory of Experimental Cardiology; University Medical Center Utrecht; Utrecht 3584CX The Netherlands
| | - Janine C. Deddens
- Department of Cardiology; Laboratory of Experimental Cardiology; University Medical Center Utrecht; Utrecht 3584CX The Netherlands
| | - Corina H. G. Metz
- Department of Cardiology; Laboratory of Experimental Cardiology; University Medical Center Utrecht; Utrecht 3584CX The Netherlands
- UMC Utrecht Regenerative Medicine Center; University Medical Center; Utrecht 3584CT The Netherlands
| | - Kirsten Lodder
- Department of Molecular Cell Biology; Leiden University Medical Center; 2333ZA The Netherlands
| | - Esther C. M. van Eeuwijk
- Department of Cardiology; Laboratory of Experimental Cardiology; University Medical Center Utrecht; Utrecht 3584CX The Netherlands
| | - Susan M. van Dommelen
- Department of Clinical Chemistry and Haematology; University Medical Center Utrecht; Utrecht 3584CX The Netherlands
| | - Pieter A. Doevendans
- Department of Cardiology; Laboratory of Experimental Cardiology; University Medical Center Utrecht; Utrecht 3584CX The Netherlands
- UMC Utrecht Regenerative Medicine Center; University Medical Center; Utrecht 3584CT The Netherlands
- Netherlands Heart Institute (ICIN); Utrecht 3584CX The Netherlands
| | - Anke M. Smits
- Department of Molecular Cell Biology; Leiden University Medical Center; 2333ZA The Netherlands
| | - Marie-José Goumans
- Department of Molecular Cell Biology; Leiden University Medical Center; 2333ZA The Netherlands
| | - Joost P. G. Sluijter
- Department of Cardiology; Laboratory of Experimental Cardiology; University Medical Center Utrecht; Utrecht 3584CX The Netherlands
- UMC Utrecht Regenerative Medicine Center; University Medical Center; Utrecht 3584CT The Netherlands
- Netherlands Heart Institute (ICIN); Utrecht 3584CX The Netherlands
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13
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Wei R, Yang J, Gao M, Wang H, Hou W, Mu Y, Chen G, Hong T. Infarcted cardiac microenvironment may hinder cardiac lineage differentiation of human embryonic stem cells. Cell Biol Int 2016; 40:1235-1246. [PMID: 27600481 DOI: 10.1002/cbin.10679] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2016] [Accepted: 09/04/2016] [Indexed: 11/07/2022]
Abstract
Microenvironment regulates cell fate and function. In this study, we investigated the effects of the infarcted cardiac microenvironment on cardiac differentiation of human embryonic stem cells (hESCs). hESCs were intramyocardially transplanted into infarcted or uninjured rat hearts. After 4 weeks, mesodermal and cardiac lineage markers were detected by immunofluorescence. Cardiac function was assessed by echocardiography. hESCs were differentiated in vitro under hypoxic (5% O2 ), low-nutrient (5% FBS), or control condition. The numbers of beating clusters, proportions of cardiac troponin T (cTnT)-positive cells, and relative levels of cardiac-specific markers were determined. Results showed that in both uninjured and infarcted hearts, hESCs survived, underwent development, and formed intracardiac grafts, with a higher proportion in the uninjured hearts. However, cells that were double positive for human fetal liver kinase 1 (Flk1), a marker of cardiac progenitors, and human β-tubulin, a marker for labeling human cells, were found in the uninjured hearts but not in the infarcted hearts. hESC transplantation did not restore the cardiac function of acutely infarcted rats. In vitro, low FBS treatment was associated with fewer beating clusters, a lower proportion of cTnT-positive cells and lower levels of cardiac troponin I (cTnI) and α-myosin heavy chain (α-MHC) expression than those in the control. Conversely, hypoxia treatment was associated with a higher proportion of cTnT-positive cells and higher levels of cTnI expression. In conclusion, transplanted hESCs differentiate toward Flk1-positive cardiac progenitors in the uninjured but not infarcted hearts. The infarcted cardiac microenvironment recapitulated is unsuitable for cardiac differentiation of hESCs, likely due to nutrient deprivation.
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Affiliation(s)
- Rui Wei
- Department of Endocrinology and Metabolism, Peking University Third Hospital, No. 49 North Garden Road, Haidian District, Beijing, 100191, China.,Clinical Stem Cell Research Centre, Peking University Third Hospital, Beijing, China
| | - Jin Yang
- Department of Endocrinology and Metabolism, Peking University Third Hospital, No. 49 North Garden Road, Haidian District, Beijing, 100191, China.,Clinical Stem Cell Research Centre, Peking University Third Hospital, Beijing, China
| | - Meijuan Gao
- Department of Endocrinology and Metabolism, Peking University Third Hospital, No. 49 North Garden Road, Haidian District, Beijing, 100191, China.,Clinical Stem Cell Research Centre, Peking University Third Hospital, Beijing, China
| | - Haining Wang
- Department of Endocrinology and Metabolism, Peking University Third Hospital, No. 49 North Garden Road, Haidian District, Beijing, 100191, China.,Clinical Stem Cell Research Centre, Peking University Third Hospital, Beijing, China
| | - Wenfang Hou
- Department of Endocrinology and Metabolism, Peking University Third Hospital, No. 49 North Garden Road, Haidian District, Beijing, 100191, China.,Clinical Stem Cell Research Centre, Peking University Third Hospital, Beijing, China
| | - Yiming Mu
- Department of Endocrinology, Chinese PLA General Hospital, Beijing, China
| | - Guian Chen
- Clinical Stem Cell Research Centre, Peking University Third Hospital, Beijing, China
| | - Tianpei Hong
- Department of Endocrinology and Metabolism, Peking University Third Hospital, No. 49 North Garden Road, Haidian District, Beijing, 100191, China. .,Clinical Stem Cell Research Centre, Peking University Third Hospital, Beijing, China.
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Birket MJ, Mummery CL. Pluripotent stem cell derived cardiovascular progenitors--a developmental perspective. Dev Biol 2015; 400:169-79. [PMID: 25624264 DOI: 10.1016/j.ydbio.2015.01.012] [Citation(s) in RCA: 36] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2014] [Revised: 01/12/2015] [Accepted: 01/14/2015] [Indexed: 12/15/2022]
Abstract
Human pluripotent stem cells can now be routinely differentiated into cardiac cell types including contractile cardiomyocytes, enabling the study of heart development and disease in vitro, and creating opportunities for the development of novel therapeutic interventions for patients. Our grasp of the system, however, remains partial, and a significant reason for this has been our inability to effectively purify and expand the intermediate cardiovascular progenitor cells (CPCs) equivalent to those studied in heart development. Doing so could facilitate the construction of a cardiac lineage cell fate map, boosting our capacity to more finely control stem cell lineage commitment to functionally distinct cardiac identities, as well as providing a model for identifying which genes confer cardiac potential on CPCs. This review offers a perspective on CPC development as understood from model organisms and pluripotent stem cell systems, focusing on issues of identity as well as the signalling implicated in inducing, expanding and patterning these cells.
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Affiliation(s)
- Matthew J Birket
- Leiden University Medical Center, 2300 RC Leiden, The Netherlands
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15
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Garreta E, Melo E, Navajas D, Farré R. Low oxygen tension enhances the generation of lung progenitor cells from mouse embryonic and induced pluripotent stem cells. Physiol Rep 2014; 2:2/7/e12075. [PMID: 25347858 PMCID: PMC4187564 DOI: 10.14814/phy2.12075] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022] Open
Abstract
Whole-organ decellularization technology has emerged as a new alternative for the fabrication of bioartificial lungs. Embryonic stem cells (ESC) and induced pluripotent stem cells (iPSC) are potentially useful for recellularization since they can be directed to express phenotypic marker genes of lung epithelial cells. Normal pulmonary development takes place in a low oxygen environment ranging from 1 to 5%. By contrast, in vitro ESC and iPSC differentiation protocols are usually carried out at room-air oxygen tension. Here, we sought to determine the role played by oxygen tension on the derivation of Nkx2.1+ lung/thyroid progenitor cells from mouse ESC and iPSC. A step-wise differentiation protocol was used to generate Nkx2.1+ lung/thyroid progenitors under 20% and 5% oxygen tension. On day 12, gene expression analysis revealed that Nkx2.1 and Foxa2 (endodermal and early lung epithelial cell marker) were significantly upregulated at 5% oxygen tension in ESC and iPSC differentiated cultures compared to 20% oxygen conditions. In addition, quantification of Foxa2+Nkx2.1+Pax8- cells corresponding to the lung field, with exclusion of the potential thyroid fate identified by Pax8 expression, confirmed that the low physiologic oxygen tension exerted a significant positive effect on early pulmonary differentiation of ESC and iPSC. In conclusion, we found that 5% oxygen tension enhanced the derivation of lung progenitors from mouse ESC and iPSC compared to 20% room-air oxygen tension.
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Affiliation(s)
- Elena Garreta
- Facultat de Medicina, Unitat de Biofísica i Bioenginyeria, Universitat de Barcelona, Barcelona, Spain CIBER de Enfermedades Respiratorias, Madrid, Spain Institut Investigacions Biomediques August Pi i Sunyer (IDIBAPS), Barcelona, Spain Centre de Medicina Regenerativa de Barcelona (CMRB), Parc de Recerca Biomèdica de Barcelona (PRBB), Dr. Aiguader88 7ª Planta, Barcelona, 08003, Spain
| | - Esther Melo
- Facultat de Medicina, Unitat de Biofísica i Bioenginyeria, Universitat de Barcelona, Barcelona, Spain CIBER de Enfermedades Respiratorias, Madrid, Spain Institut Investigacions Biomediques August Pi i Sunyer (IDIBAPS), Barcelona, Spain F. Hoffmann-La Roche, AG, NORD DTABldg. 69/331, Basel, CH-4070, Switzerland
| | - Daniel Navajas
- Facultat de Medicina, Unitat de Biofísica i Bioenginyeria, Universitat de Barcelona, Barcelona, Spain CIBER de Enfermedades Respiratorias, Madrid, Spain Institut de Bioenginyeria de Catalunya, Barcelona, Spain
| | - Ramon Farré
- Facultat de Medicina, Unitat de Biofísica i Bioenginyeria, Universitat de Barcelona, Barcelona, Spain CIBER de Enfermedades Respiratorias, Madrid, Spain Institut Investigacions Biomediques August Pi i Sunyer (IDIBAPS), Barcelona, Spain
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16
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Zacchigna S, Giacca M. Extra- and intracellular factors regulating cardiomyocyte proliferation in postnatal life. Cardiovasc Res 2014; 102:312-20. [PMID: 24623280 DOI: 10.1093/cvr/cvu057] [Citation(s) in RCA: 39] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/11/2022] Open
Abstract
One of the striking differences that distinguish the adult from the embryonic heart in mammals and set it apart from the heart in urodeles and teleosts is the incapacity of cardiomyocytes to respond to damage by proliferation. While the molecular reasons underlying these characteristics still await elucidation, mounting evidence collected over the last several years indicates that cardiomyocyte proliferation can be modulated by different extracellular molecules. The exogenous administration of selected growth factors is capable of inducing neonatal and, in some instances, also adult cardiomyocyte proliferation. Other diffusible factors can regulate the proliferation and cardiac commitment of endogenous or implanted stem cells. While the individual role of these factors in the paracrine control of normal heart homeostasis still needs to be defined, this information is relevant for the development of novel therapeutic strategies for cardiac regeneration. In addition, recent evidence indicates that postnatal cardiomyocyte proliferation is controlled by genetically defined pathways, such as the Hippo pathway, and can be modulated by perturbing the endogenous cardiomyocyte microRNA network; the identification of the cytokines that activate these molecular circuits holds great potential for clinical translation.
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Affiliation(s)
- Serena Zacchigna
- Molecular Medicine Laboratory, International Centre for Genetic Engineering and Biotechnology , Padriciano, 99, Trieste 34149, Italy
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17
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Ellison GM, Smith AJ, Waring CD, Henning BJ, Burdina AO, Polydorou J, Vicinanza C, Lewis FC, Nadal-Ginard B, Torella D. Adult Cardiac Stem Cells: Identity, Location and Potential. ADULT STEM CELLS 2014. [DOI: 10.1007/978-1-4614-9569-7_4] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
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18
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Effects of severe hypoxia on bone marrow mesenchymal stem cells differentiation potential. Stem Cells Int 2013; 2013:232896. [PMID: 24082888 PMCID: PMC3777136 DOI: 10.1155/2013/232896] [Citation(s) in RCA: 60] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/01/2013] [Revised: 06/27/2013] [Accepted: 06/30/2013] [Indexed: 02/06/2023] Open
Abstract
Background. The interests in mesenchymal stem cells (MSCs) and their application in cell therapy have resulted in a better understanding of the basic biology of these cells. Recently hypoxia has been indicated as crucial for complete chondrogenesis. We aimed at analyzing bone marrow MSCs (BM-MSCs) differentiation capacity under normoxic and severe hypoxic culture conditions. Methods. MSCs were characterized by flow cytometry and differentiated towards adipocytes, osteoblasts, and chondrocytes under normoxic or severe hypoxic conditions. The differentiations were confirmed comparing each treated point with a control point made of cells grown in DMEM and fetal bovine serum (FBS). Results. BM-MSCs from the donors displayed only few phenotypical differences in surface antigens expressions. Analyzing marker genes expression levels of the treated cells compared to their control point for each lineage showed a good differentiation in normoxic conditions and the absence of this differentiation capacity in severe hypoxic cultures. Conclusions. In our experimental conditions, severe hypoxia affects the in vitro differentiation potential of BM-MSCs. Adipogenic, osteogenic, and chondrogenic differentiations are absent in severe hypoxic conditions. Our work underlines that severe hypoxia slows cell differentiation by means of molecular mechanisms since a decrease in the expression of adipocyte-, osteoblast-, and chondrocyte-specific genes was observed.
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19
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Miedel E, Dishowitz MI, Myers MH, Dopkin D, Yu YY, Miclau TS, Marcucio R, Ahn J, Hankenson KD. Disruption of thrombospondin-2 accelerates ischemic fracture healing. J Orthop Res 2013; 31:935-43. [PMID: 23280580 DOI: 10.1002/jor.22302] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/27/2012] [Accepted: 11/29/2012] [Indexed: 02/04/2023]
Abstract
Thrombospondin-2 (TSP2) is a matricellular protein that is highly up-regulated during fracture healing. TSP2 negatively regulates vascularity, vascular reperfusion following ischemia, and cutaneous wound healing. As well, TSP2-null mice show increased endocortical bone formation due to an enhanced number of mesenchymal progenitor cells and show increased cortical thickness. Mice deficient in TSP2 (TSP2-null) show an alteration in fracture healing, that is unrelated to their cortical bone phenotype, which is characterized by enhanced vascularization with a shift towards an intramembranous healing phenotype; thus, we hypothesized that there would be enhanced ischemic fracture healing in the absence of TSP2. We investigated whether an absence of TSP2 would enhance ischemic fracture healing utilizing Laser doppler, µCT and histological analysis. Ischemic tibial fractures were created in wildtype (WT) and TSP2-null mice and harvested 10, 20, or 40 days post-fracture. TSP2-null mice show enhanced vascular perfusion following ischemic fracture. At day 10 post-fracture, TSP2-null mice have 115% greater bone volume than WT mice. This is associated with a 122% increase in vessel density, 20% increase in cell proliferation, and 15% decrease in apoptosis compared to WT. At day 20, TSP2-null mice have 34% more bone volume, 51% greater bone volume fraction, and 37% more bone tissue mineral density than WT. By 40 days after fracture the TSP2-null mice have a 24% increase in bone volume fraction, but other parameters show no significant differences. These findings indicate TSP2 is a negative regulator of ischemic fracture healing and that in the absence of TSP2 bone regeneration is enhanced.
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Affiliation(s)
- Emily Miedel
- Department of Pathobiology, School of Veterinary Medicine, University of Pennsylvania, Philadelphia, Pennsylvania, USA
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20
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Nicolaije C, van de Peppel J, van Leeuwen JP. Oxygen-induced transcriptional dynamics in human osteoblasts are most prominent at the onset of mineralization. J Cell Physiol 2013; 228:1863-72. [DOI: 10.1002/jcp.24348] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2012] [Accepted: 02/06/2013] [Indexed: 02/03/2023]
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21
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Liu J, van Mil A, Aguor ENE, Siddiqi S, Vrijsen K, Jaksani S, Metz C, Zhao J, Strijkers GJ, Doevendans PA, Sluijter JPG. MiR-155 inhibits cell migration of human cardiomyocyte progenitor cells (hCMPCs) via targeting of MMP-16. J Cell Mol Med 2013; 16:2379-86. [PMID: 22348515 PMCID: PMC3823431 DOI: 10.1111/j.1582-4934.2012.01551.x] [Citation(s) in RCA: 37] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023] Open
Abstract
Undesired cell migration after targeted cell transplantation potentially limits beneficial effects for cardiac regeneration. MicroRNAs are known to be involved in several cellular processes, including cell migration. Here, we attempt to reduce human cardiomyocyte progenitor cell (hCMPC) migration via increasing microRNA-155 (miR-155) levels, and investigate the underlying mechanism. Human cardiomyocyte progenitor cells (hCMPCs) were transfected with pre-miR-155, anti-miR-155 or control-miR (ctrl-miR), followed by scratch- and transwell-assays. These functional assays displayed that miR-155 over-expression efficiently inhibited cell migration by 38 ± 3.6% and 59 ± 3.7% respectively. Conditioned medium from miR-155 transfected cells was collected and zymography analysis showed a significant decrease in MMP-2 and MMP-9 activities. The predicted 3'-UTR of MMP-16, an activator of MMP-2 and -9, was cloned into the pMIR-REPORT vector and luciferase assays were performed. Introduction of miR-155 significantly reduced luciferase activity which could be abolished by cotransfection with anti-miR-155 or target site mutagenesis. By using MMP-16 siRNA to reduce MMP-16 levels or by using an MMP-16 blocking antibody, hCMPC migration could be blocked as well. By directly targeting MMP-16, miR-155 efficiently inhibits cell migration via a reduction in MMP-2 and -9 activities. Our study shows that miR-155 might be used to improve local retention of hCMPCs after intramyocardial delivery.
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Affiliation(s)
- Jia Liu
- Department of Endocrinology, Provincial Hospital affiliated to Shandong University, Jinan, China
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22
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van Vliet P, Goumans MJ, Doevendans PA, Sluijter JPG. Human cardiomyocyte progenitor cells: a short history of nearly everything. J Cell Mol Med 2012; 16:1669-73. [PMID: 22260290 PMCID: PMC3822680 DOI: 10.1111/j.1582-4934.2012.01535.x] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022] Open
Abstract
The high occurrence of cardiac disease in the Western world has driven clinicians and cardiovascular biologists to look for alternative strategies to treat patients. A challenging approach is the use of stem cells to repair the heart, in itself an inspiring thought. In the past 10 years, stem cells from different sources have been under intense investigation and, as a result, a multitude of studies have been published on the identification, isolation, and characterization, of cardiovascular progenitor cells and repair in different animal models. However, relatively few cardiovascular progenitor populations have been identified in human hearts, including, but not limited to, cardiosphere-derived cells, cKit+ human cardiac stem cells , Isl1+ cardiovascular progenitors, and, in our lab, cardiomyocyte progenitor cells (CMPCs). Here, we aim to provide a comprehensive summary of the past findings and present challenges for future therapeutic potential of CMPCs.
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Affiliation(s)
- Patrick van Vliet
- Department of Cardiology, Division Heart & Lungs, University Medical Center Utrecht, Utrecht, The Netherlands
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23
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Lan F, Liu J, Narsinh KH, Hu S, Han L, Lee AS, Karow M, Nguyen PK, Nag D, Calos MP, Robbins RC, Wu JC. Safe genetic modification of cardiac stem cells using a site-specific integration technique. Circulation 2012; 126:S20-8. [PMID: 22965984 PMCID: PMC3481839 DOI: 10.1161/circulationaha.111.084913] [Citation(s) in RCA: 34] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
BACKGROUND Human cardiac progenitor cells (hCPCs) are a promising cell source for regenerative repair after myocardial infarction. Exploitation of their full therapeutic potential may require stable genetic modification of the cells ex vivo. Safe genetic engineering of stem cells, using facile methods for site-specific integration of transgenes into known genomic contexts, would significantly enhance the overall safety and efficacy of cellular therapy in a variety of clinical contexts. METHODS AND RESULTS We used the phiC31 site-specific recombinase to achieve targeted integration of a triple fusion reporter gene into a known chromosomal context in hCPCs and human endothelial cells. Stable expression of the reporter gene from its unique chromosomal integration site resulted in no discernible genomic instability or adverse changes in cell phenotype. Namely, phiC31-modified hCPCs were unchanged in their differentiation propensity, cellular proliferative rate, and global gene expression profile when compared with unaltered control hCPCs. Expression of the triple fusion reporter gene enabled multimodal assessment of cell fate in vitro and in vivo using fluorescence microscopy, bioluminescence imaging, and positron emission tomography. Intramyocardial transplantation of genetically modified hCPCs resulted in significant improvement in myocardial function 2 weeks after cell delivery, as assessed by echocardiography (P=0.002) and MRI (P=0.001). We also demonstrated the feasibility and therapeutic efficacy of genetically modifying differentiated human endothelial cells, which enhanced hind limb perfusion (P<0.05 at day 7 and 14 after transplantation) on laser Doppler imaging. CONCLUSIONS The phiC31 integrase genomic modification system is a safe, efficient tool to enable site-specific integration of reporter transgenes in progenitor and differentiated cell types.
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Affiliation(s)
- Feng Lan
- Department of Medicine, Division of Cardiology, Stanford School of Medicine, Stanford, California, USA
- Department of Radiology, Stanford School of Medicine, Stanford, California, USA
| | - Junwei Liu
- Department of Medicine, Division of Cardiology, Stanford School of Medicine, Stanford, California, USA
- Department of Radiology, Stanford School of Medicine, Stanford, California, USA
| | - Kazim H. Narsinh
- Department of Medicine, Division of Cardiology, Stanford School of Medicine, Stanford, California, USA
- Department of Radiology, Stanford School of Medicine, Stanford, California, USA
| | - Shijun Hu
- Department of Medicine, Division of Cardiology, Stanford School of Medicine, Stanford, California, USA
- Department of Radiology, Stanford School of Medicine, Stanford, California, USA
| | - Leng Han
- Department of Medicine, Division of Cardiology, Stanford School of Medicine, Stanford, California, USA
- Department of Radiology, Stanford School of Medicine, Stanford, California, USA
| | - Andrew S. Lee
- Department of Medicine, Division of Cardiology, Stanford School of Medicine, Stanford, California, USA
- Department of Radiology, Stanford School of Medicine, Stanford, California, USA
| | - Marisa Karow
- Department of Genetics, Stanford School of Medicine, Stanford, California, USA
| | - Patricia K. Nguyen
- Department of Medicine, Division of Cardiology, Stanford School of Medicine, Stanford, California, USA
- Department of Radiology, Stanford School of Medicine, Stanford, California, USA
| | - Divya Nag
- Department of Medicine, Division of Cardiology, Stanford School of Medicine, Stanford, California, USA
- Department of Radiology, Stanford School of Medicine, Stanford, California, USA
| | - Michele P. Calos
- Department of Genetics, Stanford School of Medicine, Stanford, California, USA
| | - Robert C. Robbins
- Department of Cardiothoracic Surgery, Stanford School of Medicine, Stanford, California, USA
- Stanford Cardiovascular Institute, Stanford School of Medicine, Stanford, California, USA
| | - Joseph C. Wu
- Department of Medicine, Division of Cardiology, Stanford School of Medicine, Stanford, California, USA
- Department of Radiology, Stanford School of Medicine, Stanford, California, USA
- Stanford Cardiovascular Institute, Stanford School of Medicine, Stanford, California, USA
- Institute for Stem Cell Biology and Regenerative Medicine, Stanford School of Medicine, Stanford, California, USA
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24
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Bax NAM, van Marion MH, Shah B, Goumans MJ, Bouten CVC, van der Schaft DWJ. Matrix production and remodeling capacity of cardiomyocyte progenitor cells during in vitro differentiation. J Mol Cell Cardiol 2012; 53:497-508. [PMID: 22820459 DOI: 10.1016/j.yjmcc.2012.07.003] [Citation(s) in RCA: 35] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/05/2012] [Revised: 07/02/2012] [Accepted: 07/11/2012] [Indexed: 11/25/2022]
Abstract
Cell-based therapy has emerged as a treatment modality for myocardial repair. Especially cardiac resident stem cells are considered a potential cell source since they are able to differentiate into cardiomyocytes and have improved heart function after injury in a preclinical model for myocardial infarction. To avoid or repair myocardial damage it is important not only to replace the lost cardiomyocytes, but also to remodel and replace the scar tissue by "healthy" extracellular matrix (ECM). Interestingly, the role of cardiac stem cells in this facet of cardiac repair is largely unknown. Therefore, we investigated the expression and production of ECM proteins, matrix metalloproteinases (MMPs) and their inhibitors (TIMPs) in human cardiomyocyte progenitor cells (CMPCs) undergoing differentiation towards the cardiomyogenic lineage. Our data suggest that CMPCs have the capacity to synthesize and modulate their own matrix environment, especially during differentiation towards the cardiomyogenic lineage. While undifferentiated CMPCs expressed collagen I, III, IV and fibronectin, but no elastin, during the process of differentiation the expression of collagen I, III, IV and fibronectin increased and interestingly also elastin expression was induced. Furthermore, undifferentiated CMPCs express MMP-1 -2 and -9 and upon differentiation the expression of MMP-1 decreased, while the expression of MMP-2 and MMP-9, although the latter only in the early stage of differentiation, increased. Additionally, the expression of TIMP-1, -2 and -4 was induced during differentiation. This study provides new insights into the matrix production and remodeling capacity of human CMPCs, with potential beneficial effects for the treatment of cardiac injury.
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Affiliation(s)
- Noortje A M Bax
- Department of Biomedical Engineering, Eindhoven University of Technology, Eindhoven, The Netherlands
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25
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den Haan MC, Grauss RW, Smits AM, Winter EM, van Tuyn J, Pijnappels DA, Steendijk P, Gittenberger-De Groot AC, van der Laarse A, Fibbe WE, de Vries AAF, Schalij MJ, Doevendans PA, Goumans MJ, Atsma DE. Cardiomyogenic differentiation-independent improvement of cardiac function by human cardiomyocyte progenitor cell injection in ischaemic mouse hearts. J Cell Mol Med 2012; 16:1508-21. [PMID: 22003890 PMCID: PMC3823219 DOI: 10.1111/j.1582-4934.2011.01468.x] [Citation(s) in RCA: 34] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2011] [Accepted: 09/08/2011] [Indexed: 12/31/2022] Open
Abstract
We previously showed that human cardiomyocyte progenitor cells (hCMPCs) injected after myocardial infarction (MI) had differentiated into cardiomyocytes in vivo 3 months after MI. Here, we investigated the short-term (2 weeks) effects of hCMPCs on the infarcted mouse myocardium. MI was induced in immunocompromised (NOD/scid) mice, immediately followed by intramyocardial injection of hCMPCs labelled with enhanced green fluorescent protein (hCMPC group) or vehicle only (control group). Sham-operated mice served as reference. Cardiac performance was measured 2 and 14 days after MI by magnetic resonance imaging at 9.4 T. Left ventricular (LV) pressure-volume measurements were performed at day 15 followed by extensive immunohistological analysis. Animals injected with hCMPCs demonstrated a higher LV ejection fraction, lower LV end-systolic volume and smaller relaxation time constant than control animals 14 days after MI. hCMPCs engrafted in the infarcted myocardium, did not differentiate into cardiomyocytes, but increased vascular density and proliferation rate in the infarcted and border zone area of the hCMPC group. Injected hCMPCs engraft into murine infarcted myocardium where they improve LV systolic function and attenuate the ventricular remodelling process 2 weeks after MI. Since no cardiac differentiation of hCMPCs was evident after 2 weeks, the observed beneficial effects were most likely mediated by paracrine factors, targeting amongst others vascular homeostasis. These results demonstrate that hCMPCs can be applied to repair infarcted myocardium without the need to undergo differentiation into cardiomyocytes.
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Affiliation(s)
- Melina C den Haan
- Department of Cardiology, Leiden University Medical CenterLeiden, The Netherlands
| | - Robert W Grauss
- Department of Cardiology, Leiden University Medical CenterLeiden, The Netherlands
| | - Anke M Smits
- Department of Molecular Cell Biology, Leiden University Medical CenterLeiden, The Netherlands
| | - Elizabeth M Winter
- Department of Anatomy and Embryology, Leiden University Medical CenterLeiden, The Netherlands
| | - John van Tuyn
- Department of Cardiology, Leiden University Medical CenterLeiden, The Netherlands
- Department of Molecular Cell Biology, Leiden University Medical CenterLeiden, The Netherlands
| | - Daniël A Pijnappels
- Department of Cardiology, Leiden University Medical CenterLeiden, The Netherlands
| | - Paul Steendijk
- Department of Cardiology, Leiden University Medical CenterLeiden, The Netherlands
| | | | | | - Willem E Fibbe
- Department of Immunohematology and Blood Transfusion, Leiden University Medical CenterLeiden, The Netherlands
| | - Antoine A F de Vries
- Department of Cardiology, Leiden University Medical CenterLeiden, The Netherlands
- Department of Molecular Cell Biology, Leiden University Medical CenterLeiden, The Netherlands
| | - Martin J Schalij
- Department of Cardiology, Leiden University Medical CenterLeiden, The Netherlands
| | - Pieter A Doevendans
- Department of Cardiology, University Medical Center UtrechtUtrecht, The Netherlands
| | - Marie-José Goumans
- Department of Molecular Cell Biology, Leiden University Medical CenterLeiden, The Netherlands
| | - Douwe E Atsma
- Department of Cardiology, Leiden University Medical CenterLeiden, The Netherlands
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26
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Jin P, Wang E, Wang YH, Huang W, Kuang W, Sun C, Hu S, Zhang H. Central zone of myocardial infarction: a neglected target area for heart cell therapy. J Cell Mol Med 2012; 16:637-48. [PMID: 21838808 PMCID: PMC3822938 DOI: 10.1111/j.1582-4934.2011.01408.x] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022] Open
Abstract
The purpose of this study was to investigate the fate of transplanted cells in the central zone of myocardial infarction (MI), and to clarify the relationship between the injection-site impact and the efficacy of cell therapy. MI was created by coronary ligation in female rats. Three weeks later, 3-million labelled male bone marrow mesenchymal stem cells (BMSCs) were directly injected into the border (BZC group) or central zone (CZC group) of MI area. As a control, culture medium was injected into the same sites. Cell survival was evaluated by quantitative real-time polymerase chain reaction, and apoptosis was assayed with TUNEL and caspase-3 staining. Four weeks after transplantation, heart function and cardiac morphometry were evaluated by echocardiography and Masson’s Trichrome staining, respectively. Angiogenesis and myogenesis were detected by immunofluorescence staining. After cell transplantation into the border or central zone, there was no cell migration between the different zones of MI. BMSCs in the CZC group exhibited no difference in apoptotic percentage, in the long-term survival, when compared with those in the BZC group. However, they did effectively promote angiogenesis and cellular myogenic differentiation. Although cell delivery in the central zone of MI had no effect on the recovery of heart function compared with the BZC group, the retained BMSCs could still increase the scar thickness, and subsequently exhibit a trend in the reverse remodelling of ventricular dilation. Hence, we concluded that the central zone of MI should not be ignored during cell-based therapy. Multiple site injection (border+central zone) is strongly recommended during the procedure of cell transplantation.
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Affiliation(s)
- Peifeng Jin
- Department of Surgery and Research Center for Cardiac Regenerative Medicine, Cardiovascular Institute and Fu Wai Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
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27
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Russell JL, Goetsch SC, Aguilar HR, Frantz DE, Schneider JW. Targeting native adult heart progenitors with cardiogenic small molecules. ACS Chem Biol 2012; 7:1067-76. [PMID: 22413910 DOI: 10.1021/cb200525q] [Citation(s) in RCA: 35] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Targeting native progenitors with small molecule pharmaceuticals that direct cell fate decisions is an attractive approach for regenerative medicine. Here, we show that 3,5-disubstituted isoxazoles (Isx), stem cell-modulator small molecules originally recovered in a P19 embryonal carcinoma cell-based screen, directed cardiac muscle gene expression in vivo in target tissues of adult transgenic reporter mice. Isx also stimulated adult mouse myocardial cell cycle activity. Narrowing our focus onto one target cardiac-resident progenitor population, Isx directed muscle transcriptional programs in vivo in multipotent Notch-activated epicardium-derived cells (NECs), generating Notch-activated adult cardiomyocyte-like precursors. Myocardial infarction (MI) preemptively differentiated NECs toward fibroblast lineages, overriding Isx's cardiogenic influence in this cell population. Isx dysregulated gene expression in vivo in Notch-activated repair fibroblasts, driving distinctive (pro-angiogenesis) gene programs, but failed to mitigate fibrosis or avert ventricular functional decline after MI. In NECs in vitro, Isx directed partial muscle differentiation, which included biosynthesis and assembly of sarcomeric α-actinin premyofibrils, beaded structures pathognomonic of early developing cardiomyocytes. Thus, although Isx small molecules have promising in vivo efficacy at the level of cardiac muscle gene expression in native multipotent progenitors and are first in class in this regard, a greater understanding of the dynamic interplay between fibrosis and cardiogenic small molecule signals will be required to pharmacologically enable regenerative repair of the heart.
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Affiliation(s)
- Jamie L. Russell
- Department of Internal Medicine, University of Texas Southwestern Medical Center, Dallas,
Texas 75390, United States
| | - Sean C. Goetsch
- Department of Internal Medicine, University of Texas Southwestern Medical Center, Dallas,
Texas 75390, United States
| | - Hector R. Aguilar
- Department of Chemistry, University of Texas at San Antonio, San Antonio, Texas
78249, United States
| | - Doug E. Frantz
- Department of Chemistry, University of Texas at San Antonio, San Antonio, Texas
78249, United States
| | - Jay W. Schneider
- Department of Internal Medicine, University of Texas Southwestern Medical Center, Dallas,
Texas 75390, United States
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28
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Li Z, Guo X, Guan J. A Thermosensitive Hydrogel Capable of Releasing bFGF for Enhanced Differentiation of Mesenchymal Stem Cell into Cardiomyocyte-like Cells under Ischemic Conditions. Biomacromolecules 2012; 13:1956-64. [DOI: 10.1021/bm300574j] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Affiliation(s)
- Zhenqing Li
- Department of Materials Science & Engineering, The Ohio State University, Columbus, Ohio 43210, United States
| | - Xiaolei Guo
- Department of Materials Science & Engineering, The Ohio State University, Columbus, Ohio 43210, United States
| | - Jianjun Guan
- Department of Materials Science & Engineering, The Ohio State University, Columbus, Ohio 43210, United States
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29
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Liu J, Narsinh KH, Lan F, Wang L, Nguyen PK, Hu S, Lee A, Han L, Gong Y, Huang M, Nag D, Rosenberg J, Chouldechova A, Robbins RC, Wu JC. Early stem cell engraftment predicts late cardiac functional recovery: preclinical insights from molecular imaging. Circ Cardiovasc Imaging 2012; 5:481-90. [PMID: 22565608 DOI: 10.1161/circimaging.111.969329] [Citation(s) in RCA: 60] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
BACKGROUND Human cardiac progenitor cells have demonstrated great potential for myocardial repair in small and large animals, but robust methods for longitudinal assessment of their engraftment in humans is not yet readily available. In this study, we sought to optimize and evaluate the use of positron emission tomography (PET) reporter gene imaging for monitoring human cardiac progenitor cell (hCPC) transplantation in a mouse model of myocardial infarction. METHODS AND RESULTS hCPCs were isolated and expanded from human myocardial samples and stably transduced with herpes simplex virus thymidine kinase (TK) PET reporter gene. Thymidine kinase-expressing hCPCs were characterized in vitro and transplanted into murine myocardial infarction models (n=57). Cardiac echocardiographic, magnetic resonance imaging and pressure-volume loop analyses revealed improvement in left ventricular contractile function 2 weeks after transplant (hCPC versus phosphate-buffered saline, P<0.03). Noninvasive PET imaging was used to track hCPC fate over a 4-week time period, demonstrating a substantial decline in surviving cells. Importantly, early cell engraftment as assessed by PET was found to predict subsequent functional improvement, implying a "dose-effect" relationship. We isolated the transplanted cells from recipient myocardium by laser capture microdissection for in vivo transcriptome analysis. Our results provide direct evidence that hCPCs augment cardiac function after their transplantation into ischemic myocardium through paracrine secretion of growth factors. CONCLUSIONS PET reporter gene imaging can provide important diagnostic and prognostic information regarding the ultimate success of hCPC treatment for myocardial infarction.
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Affiliation(s)
- Junwei Liu
- Department of Cardiothoracic Surgery, Stanford University School of Medicine, Stanford, CA, USA
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