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Berlet R, Anthony S, Brooks B, Wang ZJ, Sadanandan N, Shear A, Cozene B, Gonzales-Portillo B, Parsons B, Salazar FE, Lezama Toledo AR, Monroy GR, Gonzales-Portillo JV, Borlongan CV. Combination of Stem Cells and Rehabilitation Therapies for Ischemic Stroke. Biomolecules 2021; 11:1316. [PMID: 34572529 PMCID: PMC8468342 DOI: 10.3390/biom11091316] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2021] [Revised: 08/31/2021] [Accepted: 09/01/2021] [Indexed: 12/14/2022] Open
Abstract
Stem cell transplantation with rehabilitation therapy presents an effective stroke treatment. Here, we discuss current breakthroughs in stem cell research along with rehabilitation strategies that may have a synergistic outcome when combined together after stroke. Indeed, stem cell transplantation offers a promising new approach and may add to current rehabilitation therapies. By reviewing the pathophysiology of stroke and the mechanisms by which stem cells and rehabilitation attenuate this inflammatory process, we hypothesize that a combined therapy will provide better functional outcomes for patients. Using current preclinical data, we explore the prominent types of stem cells, the existing theories for stem cell repair, rehabilitation treatments inside the brain, rehabilitation modalities outside the brain, and evidence pertaining to the benefits of combined therapy. In this review article, we assess the advantages and disadvantages of using stem cell transplantation with rehabilitation to mitigate the devastating effects of stroke.
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Affiliation(s)
- Reed Berlet
- Chicago Medical School, Rosalind Franklin University of Medicine and Science, 3333 Green Bay Rd, North Chicago, IL 60064, USA;
| | - Stefan Anthony
- Lake Erie College of Osteopathic Medicine, 5000 Lakewood Ranch Boulevard, Bradenton, FL 34211, USA;
| | - Beverly Brooks
- Department of Neurosurgery and Brain Repair, Morsani College of Medicine, University of South Florida, 12901 Bruce B Downs Blvd, Tampa, FL 33612, USA; (B.B.); (Z.-J.W.)
| | - Zhen-Jie Wang
- Department of Neurosurgery and Brain Repair, Morsani College of Medicine, University of South Florida, 12901 Bruce B Downs Blvd, Tampa, FL 33612, USA; (B.B.); (Z.-J.W.)
| | | | - Alex Shear
- University of Florida, 205 Fletcher Drive, Gainesville, FL 32611, USA;
| | - Blaise Cozene
- Tulane University, 6823 St. Charles Ave, New Orleans, LA 70118, USA;
| | | | - Blake Parsons
- Washington and Lee University, 204 W Washington St, Lexington, VA 24450, USA;
| | - Felipe Esparza Salazar
- Centro de Investigación en Ciencias de la Salud (CICSA), FCS, Universidad Anáhuac México Campus Norte, Huixquilucan 52786, Mexico; (F.E.S.); (A.R.L.T.); (G.R.M.)
| | - Alma R. Lezama Toledo
- Centro de Investigación en Ciencias de la Salud (CICSA), FCS, Universidad Anáhuac México Campus Norte, Huixquilucan 52786, Mexico; (F.E.S.); (A.R.L.T.); (G.R.M.)
| | - Germán Rivera Monroy
- Centro de Investigación en Ciencias de la Salud (CICSA), FCS, Universidad Anáhuac México Campus Norte, Huixquilucan 52786, Mexico; (F.E.S.); (A.R.L.T.); (G.R.M.)
| | | | - Cesario V. Borlongan
- Department of Neurosurgery and Brain Repair, Morsani College of Medicine, University of South Florida, 12901 Bruce B Downs Blvd, Tampa, FL 33612, USA; (B.B.); (Z.-J.W.)
- Center of Excellence for Aging and Brain Repair, Morsani College of Medicine, University of South Florida, 12901 Bruce B Downs Blvd, Tampa, FL 33612, USA
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Yang D, Liu HQ, Liu FY, Tang N, Guo Z, Ma SQ, An P, Wang MY, Wu HM, Yang Z, Fan D, Tang QZ. The Roles of Noncardiomyocytes in Cardiac Remodeling. Int J Biol Sci 2020; 16:2414-2429. [PMID: 32760209 PMCID: PMC7378633 DOI: 10.7150/ijbs.47180] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2020] [Accepted: 06/16/2020] [Indexed: 02/07/2023] Open
Abstract
Cardiac remodeling is a common characteristic of almost all forms of heart disease, including cardiac infarction, valvular diseases, hypertension, arrhythmia, dilated cardiomyopathy and other conditions. It is not merely a simple outcome induced by an increase in the workload of cardiomyocytes (CMs). The remodeling process is accompanied by abnormalities of cardiac structure as well as disturbance of cardiac function, and emerging evidence suggests that a wide range of cells in the heart participate in the initiation and development of cardiac remodeling. Other than CMs, there are numerous noncardiomyocytes (non-CMs) that regulate the process of cardiac remodeling, such as cardiac fibroblasts and immune cells (including macrophages, lymphocytes, neutrophils, and mast cells). In this review, we summarize recent knowledge regarding the definition and significant effects of various non-CMs in the pathogenesis of cardiac remodeling, with a particular emphasis on the involved signaling mechanisms. In addition, we discuss the properties of non-CMs, which serve as targets of many cardiovascular drugs that reduce adverse cardiac remodeling.
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Affiliation(s)
- Dan Yang
- Department of Cardiology, Renmin Hospital of Wuhan University, Wuhan 430060, RP China
- Cardiovascular Research Institute of Wuhan University, Wuhan 430060, RP China
- Hubei Key Laboratory of Metabolic and Chronic Diseases, Wuhan 430060, RP China
| | - Han-Qing Liu
- Department of Thyroid and Breast, Renmin Hospital of Wuhan University, Wuhan 430060, RP China
| | - Fang-Yuan Liu
- Department of Cardiology, Renmin Hospital of Wuhan University, Wuhan 430060, RP China
- Cardiovascular Research Institute of Wuhan University, Wuhan 430060, RP China
- Hubei Key Laboratory of Metabolic and Chronic Diseases, Wuhan 430060, RP China
| | - Nan Tang
- Department of Cardiology, Renmin Hospital of Wuhan University, Wuhan 430060, RP China
- Cardiovascular Research Institute of Wuhan University, Wuhan 430060, RP China
- Hubei Key Laboratory of Metabolic and Chronic Diseases, Wuhan 430060, RP China
| | - Zhen Guo
- Department of Cardiology, Renmin Hospital of Wuhan University, Wuhan 430060, RP China
- Cardiovascular Research Institute of Wuhan University, Wuhan 430060, RP China
- Hubei Key Laboratory of Metabolic and Chronic Diseases, Wuhan 430060, RP China
| | - Shu-Qing Ma
- Department of Cardiology, Renmin Hospital of Wuhan University, Wuhan 430060, RP China
- Cardiovascular Research Institute of Wuhan University, Wuhan 430060, RP China
- Hubei Key Laboratory of Metabolic and Chronic Diseases, Wuhan 430060, RP China
| | - Peng An
- Department of Cardiology, Renmin Hospital of Wuhan University, Wuhan 430060, RP China
- Cardiovascular Research Institute of Wuhan University, Wuhan 430060, RP China
- Hubei Key Laboratory of Metabolic and Chronic Diseases, Wuhan 430060, RP China
| | - Ming-Yu Wang
- Department of Cardiology, Renmin Hospital of Wuhan University, Wuhan 430060, RP China
- Cardiovascular Research Institute of Wuhan University, Wuhan 430060, RP China
- Hubei Key Laboratory of Metabolic and Chronic Diseases, Wuhan 430060, RP China
| | - Hai-Ming Wu
- Department of Cardiology, Renmin Hospital of Wuhan University, Wuhan 430060, RP China
- Cardiovascular Research Institute of Wuhan University, Wuhan 430060, RP China
- Hubei Key Laboratory of Metabolic and Chronic Diseases, Wuhan 430060, RP China
| | - Zheng Yang
- Department of Cardiology, Renmin Hospital of Wuhan University, Wuhan 430060, RP China
- Cardiovascular Research Institute of Wuhan University, Wuhan 430060, RP China
- Hubei Key Laboratory of Metabolic and Chronic Diseases, Wuhan 430060, RP China
| | - Di Fan
- Department of Cardiology, Renmin Hospital of Wuhan University, Wuhan 430060, RP China
- Cardiovascular Research Institute of Wuhan University, Wuhan 430060, RP China
- Hubei Key Laboratory of Metabolic and Chronic Diseases, Wuhan 430060, RP China
| | - Qi-Zhu Tang
- Department of Cardiology, Renmin Hospital of Wuhan University, Wuhan 430060, RP China
- Cardiovascular Research Institute of Wuhan University, Wuhan 430060, RP China
- Hubei Key Laboratory of Metabolic and Chronic Diseases, Wuhan 430060, RP China
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Humeres C, Frangogiannis NG. Fibroblasts in the Infarcted, Remodeling, and Failing Heart. JACC Basic Transl Sci 2019; 4:449-467. [PMID: 31312768 PMCID: PMC6610002 DOI: 10.1016/j.jacbts.2019.02.006] [Citation(s) in RCA: 199] [Impact Index Per Article: 39.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/19/2018] [Revised: 02/15/2019] [Accepted: 02/19/2019] [Indexed: 02/07/2023]
Abstract
Expansion and activation of fibroblasts following cardiac injury is important for repair but may also contribute to fibrosis, remodeling, and dysfunction. The authors discuss the dynamic alterations of fibroblasts in failing and remodeling myocardium. Emerging concepts suggest that fibroblasts are not unidimensional cells that act exclusively by secreting extracellular matrix proteins, thus promoting fibrosis and diastolic dysfunction. In addition to their involvement in extracellular matrix expansion, activated fibroblasts may also exert protective actions, preserving the cardiac extracellular matrix, transducing survival signals to cardiomyocytes, and regulating inflammation and angiogenesis. The functional diversity of cardiac fibroblasts may reflect their phenotypic heterogeneity.
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Key Words
- AT1, angiotensin type 1
- ECM, extracellular matrix
- FAK, focal adhesion kinase
- FGF, fibroblast growth factor
- IL, interleukin
- MAPK, mitogen-activated protein kinase
- MRTF, myocardin-related transcription factor
- PDGF, platelet-derived growth factor
- RNA, ribonucleic acid
- ROCK, Rho-associated coiled-coil containing kinase
- ROS, reactive oxygen species
- SMA, smooth muscle actin
- TGF, transforming growth factor
- TRP, transient receptor potential
- cytokines
- extracellular matrix
- fibroblast
- infarction
- lncRNA, long noncoding ribonucleic acid
- miRNA, micro–ribonucleic acid
- remodeling
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Affiliation(s)
- Claudio Humeres
- The Wilf Family Cardiovascular Research Institute, Department of Medicine (Cardiology), Albert Einstein College of Medicine, Bronx, New York
| | - Nikolaos G Frangogiannis
- The Wilf Family Cardiovascular Research Institute, Department of Medicine (Cardiology), Albert Einstein College of Medicine, Bronx, New York
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Pourtaji A, Jahani V, Moallem SMH, Karimani A, Mohammadpour AH. Application of G-CSF in Congestive Heart Failure Treatment. Curr Cardiol Rev 2019; 15:83-90. [PMID: 30378501 PMCID: PMC6520582 DOI: 10.2174/1573403x14666181031115118] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/23/2018] [Revised: 10/17/2018] [Accepted: 10/24/2018] [Indexed: 12/23/2022] Open
Abstract
INTRODUCTION Congestive Heart Failure (CHF) is a disorder in which the heart is unable to supply enough blood for body tissues. Since heart is an adaptable organ, it overcomes this condition by going under remodeling process. Considering cardiac myocytes are capable of proliferation after MI, stimulation of neovascularization as well as their regeneration might serve as a novel target in cardiac remodeling prevention and CHF treatment. Granulocyte Colony-Stimulating Factor (G-CSF), is a hematopoietic cytokine that promotes proliferation and differentiation of neutrophils and is involved in cardiac repair after MI. So far, this is the first review to focus on GCSF as a novel treatment for heart failure. METHODS We conducted a search of some databases such as PubMed for articles and reviews published between 2003 and 2017, with different keywords including "G-CSF", "congestive heart failure", "new therapies for CHF", "filgrastim", "in vivo study". RESULTS GCSF exerts its beneficial effects on cardiac repair through either stem cell mobilization or direct angiogenesis promotion. All of which are capable of promoting cardiac cell repair. CONCLUSION GCSF is a promising target in CHF-therapy by means of cardiac repair and remodeling prevention through multiple mechanisms, which are effective enough to be used in clinical practice.
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Affiliation(s)
- Atena Pourtaji
- Department of Pharmacodynamics and Toxicology, School of Pharmacy, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Vajiheh Jahani
- Department of Clinical Pharmacy, School of Pharmacy, Mashhad University of Medical Sciences, Mashhad, Iran
| | | | - Asieh Karimani
- Department of Pharmacodynamics and Toxicology, School of Pharmacy, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Amir Hooshang Mohammadpour
- Department of Clinical Pharmacy, Mashhad University of Medical Sciences, Mashhad, Iran.,Pharmaceutical Research Center, Institute of Pharmaceutical Technology, Mashhad University of Medical Sciences, Mashhad, Iran
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Reichard A, Wanner N, Stuehr E, Alemagno M, Weiss K, Queisser K, Erzurum S, Asosingh K. Quantification of airway fibrosis in asthma by flow cytometry. Cytometry A 2018; 93:952-958. [PMID: 29659138 DOI: 10.1002/cyto.a.23373] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2017] [Revised: 01/23/2018] [Accepted: 03/20/2018] [Indexed: 01/31/2023]
Abstract
Airway fibrosis is a prominent feature of asthma, contributing to the detrimental consequences of the disease. Fibrosis in the airway is the result of collagen deposition in the reticular lamina layer of the subepithelial tissue. Myofibroblasts are the leading cell type involved with this collagen deposition. Established methods of collagen deposition quantification present various issues, most importantly their inability to quantify current collagen biosynthesis occurring in airway myofibroblasts. Here, a novel method to quantify myofibroblast collagen expression in asthmatic lungs is described. Single cell suspensions of lungs harvested from C57BL/6 mice in a standard house dust mite model of asthma were employed to establish a flow cytometric method and compare collagen production in asthmatic and non-asthmatic lungs. Cells found to be CD45- αSMA+ , indicative of myofibroblasts, were gated, and median fluorescence intensity of the anti-collagen-I antibody labeling the cells was calculated. Lung myofibroblasts with no, medium, or high levels of collagen-I expression were distinguished. In asthmatic animals, collagen-I levels were increased in both medium and high expressers, and the number of myofibroblasts with high collagen-I content was elevated. Our findings determined that quantification of collagen-I deposition in myofibroblastic lung cells by flow cytometry is feasible in mouse models of asthma and indicative of increased collagen-I expression by asthmatic myofibroblasts. © 2018 International Society for Advancement of Cytometry.
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Affiliation(s)
- Andrew Reichard
- Department of Inflammation and Immunity, The Cleveland Clinic, Cleveland, Ohio
| | - Nicholas Wanner
- Department of Inflammation and Immunity, The Cleveland Clinic, Cleveland, Ohio
| | - Eric Stuehr
- Department of Inflammation and Immunity, The Cleveland Clinic, Cleveland, Ohio
| | - Mario Alemagno
- Department of Inflammation and Immunity, The Cleveland Clinic, Cleveland, Ohio
| | - Kelly Weiss
- Department of Inflammation and Immunity, The Cleveland Clinic, Cleveland, Ohio
| | - Kimberly Queisser
- Department of Inflammation and Immunity, The Cleveland Clinic, Cleveland, Ohio
| | - Serpil Erzurum
- Department of Inflammation and Immunity, The Cleveland Clinic, Cleveland, Ohio.,Respiratory Institute, The Cleveland Clinic, Cleveland, Ohio
| | - Kewal Asosingh
- Department of Inflammation and Immunity, The Cleveland Clinic, Cleveland, Ohio.,Flow Cytometry Core, Lerner Research Institute The Cleveland Clinic, Cleveland, Ohio
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Agnic I, Filipovic N, Vukojevic K, Saraga-Babic M, Grkovic I. Isoflurane post-conditioning influences myocardial infarct healing in rats. Biotech Histochem 2018; 93:354-363. [DOI: 10.1080/10520295.2018.1443507] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023] Open
Affiliation(s)
- I Agnic
- Department of Anaesthesiology, University Hospital Split, Split
| | - N Filipovic
- Department of Anatomy, Histology and Embryology, Laboratory for Neurocardiology, University of Split School of Medicine, Split
| | - K Vukojevic
- Department of Anatomy, Histology and Embryology, Laboratory for Neurocardiology, University of Split School of Medicine, Split
- Department of Anatomy, Histology and Embryology, Laboratory for Early Human Development, University of Split School of Medicine, Split, Croatia
| | - M Saraga-Babic
- Department of Anatomy, Histology and Embryology, Laboratory for Early Human Development, University of Split School of Medicine, Split, Croatia
| | - I Grkovic
- Department of Anatomy, Histology and Embryology, Laboratory for Neurocardiology, University of Split School of Medicine, Split
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El-badrawy MK, Shalabi NM, Mohamed MA, Ragab A, Wagih Abdelwahab H, Anber N, Sobh MA, Khater Y, Abdel Hamid AA. Recombinant human granulocyte colony stimulating factor versus bone marrow mononuclear cells in treatment of pulmonary emphysema model. EGYPTIAN JOURNAL OF CHEST DISEASES AND TUBERCULOSIS 2017. [DOI: 10.1016/j.ejcdt.2017.08.001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022] Open
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Xavier-Elsas P, Ferreira RN, Gaspar-Elsas MIC. Surgical and immune reconstitution murine models in bone marrow research: Potential for exploring mechanisms in sepsis, trauma and allergy. World J Exp Med 2017; 7:58-77. [PMID: 28890868 PMCID: PMC5571450 DOI: 10.5493/wjem.v7.i3.58] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/27/2017] [Revised: 06/11/2017] [Accepted: 06/30/2017] [Indexed: 02/06/2023] Open
Abstract
Bone marrow, the vital organ which maintains lifelong hemopoiesis, currently receives considerable attention, as a source of multiple cell types which may play important roles in repair at distant sites. This emerging function, distinct from, but closely related to, bone marrow roles in innate immunity and inflammation, has been characterized through a number of strategies. However, the use of surgical models in this endeavour has hitherto been limited. Surgical strategies allow the experimenter to predetermine the site, timing, severity and invasiveness of injury; to add or remove aggravating factors (such as infection and defects in immunity) in controlled ways; and to manipulate the context of repair, including reconstitution with selected immune cell subpopulations. This endows surgical models overall with great potential for exploring bone marrow responses to injury, inflammation and infection, and its roles in repair and regeneration. We review three different murine surgical models, which variously combine trauma with infection, antigenic stimulation, or immune reconstitution, thereby illuminating different aspects of the bone marrow response to systemic injury in sepsis, trauma and allergy. They are: (1) cecal ligation and puncture, a versatile model of polymicrobial sepsis; (2) egg white implant, an intriguing model of eosinophilia induced by a combination of trauma and sensitization to insoluble allergen; and (3) ectopic lung tissue transplantation, which allows us to dissect afferent and efferent mechanisms leading to accumulation of hemopoietic cells in the lungs. These models highlight the gain in analytical power provided by the association of surgical and immunological strategies.
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Irion CI, Paredes BD, Brasil GV, da Cunha ST, Paula LF, Carvalho AR, de Carvalho ACC, Carvalho AB, Goldenberg RCDS. Bone marrow cell migration to the heart in a chimeric mouse model of acute chagasic disease. Mem Inst Oswaldo Cruz 2017; 112:551-560. [PMID: 28767980 PMCID: PMC5530547 DOI: 10.1590/0074-02760160526] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2016] [Accepted: 03/14/2017] [Indexed: 02/07/2023] Open
Abstract
BACKGROUND Chagas disease is a public health problem caused by infection with the protozoan Trypanosoma cruzi. There is currently no effective therapy for Chagas disease. Although there is some evidence for the beneficial effect of bone marrow-derived cells in chagasic disease, the mechanisms underlying their effects in the heart are unknown. Reports have suggested that bone marrow cells are recruited to the chagasic heart; however, studies using chimeric mouse models of chagasic cardiomyopathy are rare. OBJECTIVES The aim of this study was to investigate the migration of bone marrow cells to the heart after T. cruzi infection in a model of chagasic disease in chimeric mice. METHODS To obtain chimerical mice, wild-type (WT) C57BL6 mice were exposed to full body irradiation (7 Gy), causing bone marrow ablation. Then, bone marrow cells from green fluorescent protein (GFP)-transgenic mice were infused into the mice. Graft effectiveness was confirmed by flow cytometry. Experimental mice were divided into four groups: (i) infected chimeric (iChim) mice; (ii) infected WT (iWT) mice, both of which received 3 × 104 trypomastigotes of the Brazil strain; (iii) non-infected chimeric (Chim) mice; and (iv) non-infected WT mice. FINDINGS At one-month post-infection, iChim and iWT mice showed first degree atrioventricular block with decreased heart rate and treadmill exercise parameters compared to those in the non-infected groups. MAIN CONCLUSIONS iChim mice showed an increase in parasitaemia, myocarditis, and the presence of amastigote nests in the heart tissue compared to iWT mice. Flow cytometry analysis did not detect haematopoietic progenitor cells in the hearts of infected mice. Furthermore, GFP+ cardiomyocytes were not detected in the tissues of chimeric mice.
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Mechanisms of Fibroblast Activation in the Remodeling Myocardium. CURRENT PATHOBIOLOGY REPORTS 2017; 5:145-152. [PMID: 29057165 DOI: 10.1007/s40139-017-0132-z] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
Abstract
PURPOSE OF REVIEW Activated fibroblasts are critically implicated in repair and remodeling of the injured heart. This manuscript discusses recent progress in the cell biology of fibroblasts in the infarcted and remodeling myocardium, highlighting advances in understanding the origin, function and mechanisms of activation of these cells. RECENT FINDINGS Following myocardial injury, fibroblasts undergo activation and myofibroblast transdifferentiation. Recently published studies have suggested that most activated myofibroblasts in the infarcted and pressure-overloaded hearts are derived from resident fibroblast populations. In the healing infarct, fibroblasts undergo dynamic phenotypic alterations in response to changes in the cytokine milieu and in the composition of the extracellular matrix. Fibroblasts do not simply serve as matrix-producing cells, but may also regulate inflammation, modulate cardiomyocyte survival and function, mediate angiogenesis, and contribute to phagocytosis of dead cells. SUMMARY In the injured myocardium, fibroblasts are derived predominantly from resident populations and serve a wide range of functions.
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Lin RJ, Su ZZ, Liang SM, Chen YY, Shu XR, Nie RQ, Wang JF, Xie SL. Role of Circulating Fibrocytes in Cardiac Fibrosis. Chin Med J (Engl) 2017; 129:326-31. [PMID: 26831236 PMCID: PMC4799578 DOI: 10.4103/0366-6999.174503] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023] Open
Abstract
OBJECTIVE It is revealed that circulating fibrocytes are elevated in patients/animals with cardiac fibrosis, and this review aims to provide an introduction to circulating fibrocytes and their role in cardiac fibrosis. DATA SOURCES This review is based on the data from 1994 to present obtained from PubMed. The search terms were "circulating fibrocytes " and "cardiac fibrosis ". STUDY SELECTION Articles and critical reviews, which are related to circulating fibrocytes and cardiac fibrosis, were selected. RESULTS Circulating fibrocytes, which are derived from hematopoietic stem cells, represent a subset of peripheral blood mononuclear cells exhibiting mixed morphological and molecular characteristics of hematopoietic and mesenchymal cells (CD34+/CD45+/collagen I+). They can produce extracellular matrix and many cytokines. It is shown that circulating fibrocytes participate in many fibrotic diseases, including cardiac fibrosis. Evidence accumulated in recent years shows that aging individuals and patients with hypertension, heart failure, coronary heart disease, and atrial fibrillation have more circulating fibrocytes in peripheral blood and/or heart tissue, and this elevation of circulating fibrocytes is correlated with the degree of fibrosis in the hearts. CONCLUSIONS Circulating fibrocytes are effector cells in cardiac fibrosis.
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Affiliation(s)
| | | | | | | | | | | | | | - Shuang-Lun Xie
- Department of Cardiology, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou, Guangdong 510120; Guangdong Province Key Laboratory of Arrhythmia and Electrophysiology, Guangzhou, Guangdong 510120, China
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Sakai D, Nishimura K, Tanaka M, Nakajima D, Grad S, Alini M, Kawada H, Ando K, Mochida J. Migration of bone marrow-derived cells for endogenous repair in a new tail-looping disc degeneration model in the mouse: a pilot study. Spine J 2015; 15:1356-65. [PMID: 25459743 DOI: 10.1016/j.spinee.2013.07.491] [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: 05/22/2011] [Revised: 03/13/2013] [Accepted: 07/30/2013] [Indexed: 02/03/2023]
Abstract
BACKGROUND CONTEXT Mobilization and homing of bone marrow-derived cells (BMCs) play a pivotal role in healing and regeneration of various tissues. However, the cellular response of BMCs in avascular tissue such as the intervertebral disc (IVD) has not been studied in detail. One of the main obstacles to this is a lack of a suitable mouse disc degeneration model. PURPOSE The purpose of this study was to establish a reproducible disc degeneration mouse model suitable for analyzing the cellular response of the disc microenvironment and to determine whether BMCs are recruited into the IVD. STUDY DESIGN An experimental animal study of disc degeneration investigating the potential of BMCs in an endogenous repair of the IVD. METHODS We transplanted whole bone marrow cells from mice ubiquitously expressing enhanced green fluorescent protein into lethally irradiated mice. Intervertebral disc degeneration was induced through uneven loading by creating a loop in the tail of these mice. The vertebral bone-disc-vertebral bone units were harvested, and BMCs were identified by immunohistochemistry. RESULTS A new disc degeneration model was established in the mouse. Applying this model in the bone marrow chimeric mice increased the number of BMCs in the peripheral bone marrow and vascular canals in the endplate, and some were found in the IVD. The migration of BMCs was related to the severity of IVD degeneration. CONCLUSIONS Although providing a new disc degeneration model in mice, the present study provides evidence to suggest that although BMCs are recruited during disc degeneration, only a limited number of BMCs migrate to the IVD, presumably because of its avascular nature. This fact provides important elements for developing new treatments as many growth factors and compounds are being tested, both in investigational levels and clinical trials to nourish resident endogenous cells during the degenerative process.
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Affiliation(s)
- Daisuke Sakai
- Department of Orthopaedic Surgery, Surgical Science, Tokai University School of Medicine, Isehara, Kanagawa 259-1143, Japan; Research Center for Regenerative Medicine, Tokai University School of Medicine, Isehara, Kanagawa 259-1143, Japan; AO Spine Research Network.
| | - Kazuhiro Nishimura
- Department of Orthopaedic Surgery, Surgical Science, Tokai University School of Medicine, Isehara, Kanagawa 259-1143, Japan
| | - Masahiro Tanaka
- Department of Orthopaedic Surgery, Surgical Science, Tokai University School of Medicine, Isehara, Kanagawa 259-1143, Japan; Research Center for Regenerative Medicine, Tokai University School of Medicine, Isehara, Kanagawa 259-1143, Japan
| | - Daisuke Nakajima
- Department of Orthopaedic Surgery, Surgical Science, Tokai University School of Medicine, Isehara, Kanagawa 259-1143, Japan; Research Center for Regenerative Medicine, Tokai University School of Medicine, Isehara, Kanagawa 259-1143, Japan
| | - Sibylle Grad
- AO Spine Research Network; Musculoskeletal Regeneration Program, AO Research Institute Davos, Clavadelerstrasse 8, 7270 Davos, Switzerland
| | - Mauro Alini
- AO Spine Research Network; Musculoskeletal Regeneration Program, AO Research Institute Davos, Clavadelerstrasse 8, 7270 Davos, Switzerland
| | - Hiroshi Kawada
- Research Center for Regenerative Medicine, Tokai University School of Medicine, Isehara, Kanagawa 259-1143, Japan
| | - Kiyoshi Ando
- Research Center for Regenerative Medicine, Tokai University School of Medicine, Isehara, Kanagawa 259-1143, Japan
| | - Joji Mochida
- Department of Orthopaedic Surgery, Surgical Science, Tokai University School of Medicine, Isehara, Kanagawa 259-1143, Japan; Research Center for Regenerative Medicine, Tokai University School of Medicine, Isehara, Kanagawa 259-1143, Japan
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Ogawa M, LaRue AC, Mehrotra M. Plasticity of hematopoietic stem cells. Best Pract Res Clin Haematol 2015; 28:73-80. [DOI: 10.1016/j.beha.2015.10.003] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
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Ai F, Chen M, Li W, Yang Y, Xu G, Gui F, Liu Z, Bai X, Chen Z. Protective role of Klotho on cardiomyocytes upon hypoxia/reoxygenation via downregulation of Akt and FOXO1 phosphorylation. Mol Med Rep 2014; 11:2013-9. [PMID: 25377663 DOI: 10.3892/mmr.2014.2899] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2014] [Accepted: 08/05/2014] [Indexed: 11/05/2022] Open
Abstract
Klotho is a novel anti-aging hormone involved in human coronary artery disease. The present study aimed to detect the effects and mechanism of Klotho on cardiomyocytes in a hypoxia/reoxygenation (H/R) model in vitro. Neonatal Sprague-Dawley rat cardiomyocytes were randomly distributed into experimental groups as follows: Control group; H/R group, 4‑h hypoxia followed by 3‑h reoxygenation; and H/R+Klotho group, incubated with 0.1, 0.2 or 0.4 µg/ml Klotho protein for 16 h and then subjected to 4‑h hypoxia/3‑h reoxygenation. In order to evaluate cardiomyocyte damage, cell viability and lactate dehydrogenase (LDH) levels were measured. Cell apoptosis was measured by flow cytometry. The 2',7'-dichlorofluorescein diacetate reagent was used to estimate the intracellular generation of reactive oxygen species (ROS). Immunofluorescence staining was used to test whether Klotho induced decreased nuclear translocation of forkhead box protein O1 (FOXO1). Western blot analysis was performed to detect protein levels of FOXO1, phospho-FOXO1, Akt, phospho-Akt and superoxide dismutase 2 (SOD2). Cell viability was significantly decreased, levels of LDH in the cardiomyocyte culture medium were significantly increased and the apoptotic rate was enhanced in the H/R group when compared with those of the control group. Compared with the H/R group, cell viability of the H/R+Klotho groups was significantly higher (P<0.05). Treatment with Klotho protein resulted in a significant resistance of cardiomyocytes to apoptosis and the release of LDH was decreased. Intracellular ROS levels in the H/R group were significantly elevated above those of the control group (P<0.05). Following treatment with Klotho, intracellular ROS levels were significantly decreased compared with those of the H/R group (P<0.05). Western blot analysis confirmed that Klotho protein treatment increased FOXO1 levels in the nucleus and decreased FOXO1 levels in the cytoplasm. Furthermore, exogenous Klotho protein promoted translocation of FOXO1 from cytoplasm to nucleus. In addition, the administration of Klotho protein suppressed phosphorylation of FOXO1 and Akt, and markedly increased the protein expression levels of SOD2. In conclusion, treatment with Klotho protein had beneficial effects on cardiomyocytes undergoing H/R injury. The mechanism of this effect may be associated with suppressed apoptosis of cardiomyocytes, inhibition of phosphorylation of FOXO1 and Akt as well as suppression of cytoplasm transfer of FOXO1.
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Affiliation(s)
- Fen Ai
- Department of Emergency, The Central Hospital of Wuhan, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei 430014, P.R. China
| | - Manhua Chen
- Department of Cardiology, The Central Hospital of Wuhan, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei 430014, P.R. China
| | - Wei Li
- Department of Emergency, The Central Hospital of Wuhan, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei 430014, P.R. China
| | - Yang Yang
- Department of Emergency, The Central Hospital of Wuhan, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei 430014, P.R. China
| | - Guizhong Xu
- Department of Emergency, The Central Hospital of Wuhan, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei 430014, P.R. China
| | - Feng Gui
- Department of Emergency, The Central Hospital of Wuhan, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei 430014, P.R. China
| | - Zhenxing Liu
- Department of Emergency, The Central Hospital of Wuhan, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei 430014, P.R. China
| | - Xiangyan Bai
- Department of Emergency, The Central Hospital of Wuhan, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei 430014, P.R. China
| | - Zhen Chen
- Department of Emergency, The Central Hospital of Wuhan, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei 430014, P.R. China
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15
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A novel molecule Me6TREN promotes angiogenesis via enhancing endothelial progenitor cell mobilization and recruitment. Sci Rep 2014; 4:6222. [PMID: 25164363 PMCID: PMC5385830 DOI: 10.1038/srep06222] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2014] [Accepted: 08/11/2014] [Indexed: 12/29/2022] Open
Abstract
Critical limb ischaemia is the most severe clinical manifestation of peripheral arterial disease. The circulating endothelial progenitor cells (EPCs) play important roles in angiogenesis and ischemic tissue repair. The increase of circulating EPC numbers by using mobilization agents is critical for obtaining a better therapeutic outcome in patients with ischemic disease. Here, we firstly report a novel small molecule, Me6TREN (Me6), can efficiently mobilize EPCs into the blood circulation. Single injection of Me6 induced a long-lasting increase in circulating Flk-1+ Sca-1+ EPC numbers. In a mouse hind limb ischemia (HLI) model, local intramuscular transplantation of these Me6-mobilized cells accelerated the blood flow restoration in the ischemic muscles. More importantly, systemic administration of Me6 notably increased the capillary density, arteriole density and regenerative muscle weight in the ischemic tissue of HLI. Mechanistically, we found Me6 reduced stromal cell-derived factor-1α level in bone marrow by up-regulation of matrix metallopeptidase-9 expression, which allowed the dissemination of EPCs into peripheral blood. These data indicate that Me6 may represent a potentially useful therapy for ischemic disease via enhancing autologous EPC recruitment and promote angiogenesis.
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Abstract
The discovery of adult cardiac stem cells (CSCs) and their potential to restore functional cardiac tissue has fueled unprecedented interest in recent years. Indeed, stem-cell–based therapies have the potential to transform the treatment and prognosis of heart failure, for they have the potential to eliminate the underlying cause of the disease by reconstituting the damaged heart with functional cardiac cells. Over the last decade, several independent laboratories have demonstrated the utility of c-kit+/Lin- resident CSCs in alleviating left ventricular dysfunction and remodeling in animal models of acute and chronic myocardial infarction. Recently, the first clinical trial of autologous CSCs for treatment of heart failure resulting from ischemic heart disease (Stem Cell Infusion in Patients with Ischemic cardiOmyopathy [SCIPIO]) has been conducted, and the interim results are quite promising. In this phase I trial, no adverse effects attributable to the CSC treatment have been noted, and CSC-treated patients showed a significant improvement in ejection fraction at 1 year (+13.7 absolute units versus baseline), accompanied by a 30.2 % reduction in infarct size. Moreover, the CSC-induced enhancement in cardiac structure and function was associated with a significant improvement in the New York Heart Association (NYHA) functional class and in the quality of life, as measured by the Minnesota Living with Heart failure Questionnaire. These results are exciting and warrant larger, phase II studies. However, CSC therapy for cardiac repair is still in its infancy, and many hurdles need to be overcome to further enhance the therapeutic efficacy of CSCs.
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Affiliation(s)
- Kyung U Hong
- Institute of Molecular Cardiology, Division of Cardiovascular Medicine, Department of Medicine, University of Louisville, Louisville, KY, 40202, USA,
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17
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Yi X, Li X, Zhou Y, Ren S, Wan W, Feng G, Jiang X. Hepatocyte growth factor regulates the TGF-β1-induced proliferation, differentiation and secretory function of cardiac fibroblasts. Int J Mol Med 2014; 34:381-90. [PMID: 24840640 PMCID: PMC4094591 DOI: 10.3892/ijmm.2014.1782] [Citation(s) in RCA: 42] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2014] [Accepted: 05/09/2014] [Indexed: 01/10/2023] Open
Abstract
Cardiac fibroblast (CF) proliferation and transformation into myofibroblasts play important roles in cardiac fibrosis during pathological myocardial remodeling. In this study, we demonstrate that hepatocyte growth factor (HGF), an antifibrotic factor in the process of pulmonary, renal and liver fibrosis, is a negative regulator of cardiac fibroblast transformation in response to transforming growth factor-β1 (TGF-β1). HGF expression levels were significantly reduced in the CFs following treatment with 5 ng/ml TGF-β1 for 48 h. The overexpression of HGF suppressed the proliferation, transformation and the secretory function of the CFs following treatment with TGF-β1, as indicated by the attenuated expression levels of α-smooth muscle actin (α-SMA) and collagen I and III, whereas the knockdown of HGF had the opposite effect. Mechanistically, we identified that the phosphorylation of c-Met, Akt and total protein of TGIF was significantly inhibited by the knockdown of HGF, but was significantly enhanced by HGF overexpression. Collectively, these results indicate that HGF activates the c-Met-Akt-TGIF signaling pathway, inhibiting CF proliferation and transformation in response to TGF-β1 stimulation.
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Affiliation(s)
- Xin Yi
- Department of Cardiology, Renmin Hospital of Wuhan University and Cardiovascular Research Institute of Wuhan University, Wuhan, Hubei 430060, P.R. China
| | - Xiaoyan Li
- Department of Cardiology, Renmin Hospital of Wuhan University and Cardiovascular Research Institute of Wuhan University, Wuhan, Hubei 430060, P.R. China
| | - Yanli Zhou
- Department of Cardiology, Renmin Hospital of Wuhan University and Cardiovascular Research Institute of Wuhan University, Wuhan, Hubei 430060, P.R. China
| | - Shan Ren
- Department of Cardiology, Renmin Hospital of Wuhan University and Cardiovascular Research Institute of Wuhan University, Wuhan, Hubei 430060, P.R. China
| | - Weiguo Wan
- Department of Cardiology, Renmin Hospital of Wuhan University and Cardiovascular Research Institute of Wuhan University, Wuhan, Hubei 430060, P.R. China
| | - Gaoke Feng
- Department of Cardiology, Renmin Hospital of Wuhan University and Cardiovascular Research Institute of Wuhan University, Wuhan, Hubei 430060, P.R. China
| | - Xuejun Jiang
- Department of Cardiology, Renmin Hospital of Wuhan University and Cardiovascular Research Institute of Wuhan University, Wuhan, Hubei 430060, P.R. China
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18
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Gong Y, Zhao Y, Li Y, Fan Y, Hoover-Plow J. Plasminogen regulates cardiac repair after myocardial infarction through its noncanonical function in stem cell homing to the infarcted heart. J Am Coll Cardiol 2014; 63:2862-72. [PMID: 24681141 DOI: 10.1016/j.jacc.2013.11.070] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/07/2013] [Revised: 11/05/2013] [Accepted: 11/26/2013] [Indexed: 10/25/2022]
Abstract
OBJECTIVES The purpose of this study was to investigate the role of plasminogen (Plg) in stem cell-mediated cardiac repair and regeneration after myocardial infarction (MI). BACKGROUND An MI induces irreversible tissue damage, eventually leading to heart failure. Bone marrow (BM)-derived stem cells promote tissue repair and regeneration after MI. Thrombolytic treatment with Plg activators significantly improves the clinical outcome in MI by restoring cardiac perfusion. However, the role of Plg in stem cell-mediated cardiac repair remains unclear. METHODS An MI was induced in Plg-deficient (Plg(-/-)) and wild-type (Plg(+/+)) mice by ligation of the left anterior descending coronary artery. Stem cells were visualized by in vivo tracking of green fluorescent protein (GFP)-expressing BM cells after BM transplantation. Cardiac function, stem cell homing, and signaling pathways downstream of Plg were examined. RESULTS Granulocyte colony-stimulating factor, a stem cell mobilizer, significantly promoted BM-derived stem cell (GFP(+)c-kit(+) cell) recruitment into the infarcted heart and stem cell-mediated cardiac repair in Plg(+/+) mice. However, Plg deficiency markedly inhibited stem cell homing and cardiac repair, suggesting that Plg is critical for stem cell-mediated cardiac repair. Moreover, Plg regulated C-X-C chemokine receptor type 4 (CXCR4) expression in stem cells in vivo and in vitro through matrix metalloproteinase-9. Lentiviral reconstitution of CXCR4 expression in BM cells successfully rescued stem cell homing to the infarcted heart in Plg-deficient mice, indicating that CXCR4 has a critical role in Plg-mediated stem cell homing after MI. CONCLUSIONS These findings have identified a novel role for Plg in stem cell-mediated cardiac repair after MI. Thus, targeting Plg may offer a new therapeutic strategy for stem cell-mediated cardiac repair after MI.
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Affiliation(s)
- Yanqing Gong
- Joseph J. Jacobs Center for Thrombosis and Vascular Biology, Departments of Cardiovascular Medicine and Molecular Cardiology, Cleveland Clinic Lerner Research Institute, Cleveland, Ohio; Division of Translational Medicine and Human Genetics, University of Pennsylvania School of Medicine, Philadelphia, Pennsylvania.
| | - Yujing Zhao
- Joseph J. Jacobs Center for Thrombosis and Vascular Biology, Departments of Cardiovascular Medicine and Molecular Cardiology, Cleveland Clinic Lerner Research Institute, Cleveland, Ohio
| | - Ying Li
- Joseph J. Jacobs Center for Thrombosis and Vascular Biology, Departments of Cardiovascular Medicine and Molecular Cardiology, Cleveland Clinic Lerner Research Institute, Cleveland, Ohio
| | - Yi Fan
- Department of Radiation Oncology, University of Pennsylvania School of Medicine, Philadelphia, Pennsylvania
| | - Jane Hoover-Plow
- Joseph J. Jacobs Center for Thrombosis and Vascular Biology, Departments of Cardiovascular Medicine and Molecular Cardiology, Cleveland Clinic Lerner Research Institute, Cleveland, Ohio
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19
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Fortunato G, Vidal DTA, Klein W, Neto A, Angrizani A, Vasconcelos JF, Kaneto C, Souza BSDF, Ribeiro-dos-Santos R, Soares MBP, Macambira SG. Recovery of pulmonary structure and exercise capacity by treatment with granulocyte-colony stimulating factor (G-CSF) in a mouse model of emphysema. Pulm Pharmacol Ther 2013; 27:144-9. [PMID: 23603459 DOI: 10.1016/j.pupt.2013.04.003] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/03/2012] [Revised: 04/01/2013] [Accepted: 04/02/2013] [Indexed: 01/08/2023]
Abstract
Emphysema is a chronic obstructive pulmonary disease characterized abnormal dilatation of alveolar spaces, which impairs alveolar gas exchange, compromising the physical capacity of a patient due to airflow limitations. Here we tested the effects of G-CSF administration in pulmonary tissue and exercise capacity in emphysematous mice. C57Bl/6 female mice were treated with elastase intratracheally to induce emphysema. Their exercise capacities were evaluated in a treadmill. Lung histological sections were prepared to evaluate mean linear intercept measurement. Emphysematous mice were treated with G-CSF (3 cycles of 200 μg/kg/day for 5 consecutive days, with 7-day intervals) or saline and submitted to a third evaluation 8 weeks after treatment. Values of run distance and linear intercept measurement were expressed as mean ± SD and compared applying a paired t-test. Effects of treatment on these parameters were analyzed applying a Repeated Measures ANOVA, followed by Tukey's post hoc analysis. p < 0.05 was considered statistically significant. Twenty eight days later, animals ran significantly less in a treadmill compared to normal mice (549.7 ± 181.2 m and 821.7 ± 131.3 m, respectively; p < 0.01). Treatment with G-CSF significantly increased the exercise capacity of emphysematous mice (719.6 ± 200.5 m), whereas saline treatment had no effect on distance run (595.8 ± 178.5 m). The PCR cytokines genes analysis did not detect difference between experimental groups. Morphometric analyses in the lung showed that saline-treated mice had a mean linear intercept significantly higher (p < 0.01) when compared to mice treated with G-CSF, which did not significantly differ from that of normal mice. Treatment with G-CSF promoted the recovery of exercise capacity and regeneration of alveolar structural alterations in emphysematous mice.
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Affiliation(s)
- Gustavo Fortunato
- Programa de Pós-Graduação em Biotecnologia, Universidade Estadual de Feira de Santana, Feira de Santana, BA, Brazil.
| | - Daniel T A Vidal
- Centro de Pesquisas Gonçalo Moniz, Fundação Oswaldo Cruz, Salvador, BA, Brazil; Centro de Biotecnologia e Terapia Celular, Hospital São Rafael, Salvador, BA, Brazil.
| | - Wilfried Klein
- Departamento de Biologia, Faculdade de Filosofia, Ciências e Letras de Ribeirão Preto, Universidade de São Paulo, SP, Brazil; Instituto Nacional de Ciência e Tecnologia em Fisiologia Comparada, UNESP, Rio Claro, SP, Brazil.
| | - Alberto Neto
- Programa de Pós-Graduação em Biotecnologia, Universidade Estadual de Feira de Santana, Feira de Santana, BA, Brazil; Centro de Biotecnologia e Terapia Celular, Hospital São Rafael, Salvador, BA, Brazil.
| | - André Angrizani
- Centro de Pesquisas Gonçalo Moniz, Fundação Oswaldo Cruz, Salvador, BA, Brazil.
| | - Juliana F Vasconcelos
- Programa de Pós-Graduação em Biotecnologia, Universidade Estadual de Feira de Santana, Feira de Santana, BA, Brazil; Centro de Pesquisas Gonçalo Moniz, Fundação Oswaldo Cruz, Salvador, BA, Brazil.
| | - Carla Kaneto
- Centro de Biotecnologia e Terapia Celular, Hospital São Rafael, Salvador, BA, Brazil.
| | | | | | - Milena B P Soares
- Programa de Pós-Graduação em Biotecnologia, Universidade Estadual de Feira de Santana, Feira de Santana, BA, Brazil; Centro de Pesquisas Gonçalo Moniz, Fundação Oswaldo Cruz, Salvador, BA, Brazil; Centro de Biotecnologia e Terapia Celular, Hospital São Rafael, Salvador, BA, Brazil.
| | - Simone G Macambira
- Programa de Pós-Graduação em Biotecnologia, Universidade Estadual de Feira de Santana, Feira de Santana, BA, Brazil; Centro de Pesquisas Gonçalo Moniz, Fundação Oswaldo Cruz, Salvador, BA, Brazil; Centro de Biotecnologia e Terapia Celular, Hospital São Rafael, Salvador, BA, Brazil; Departamento de Biofunção, Instituto de Ciências da Saúde, Universidade Federal da Bahia, BA, Brazil.
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20
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Ogawa M, LaRue AC, Mehrotra M. Hematopoietic stem cells are pluripotent and not just "hematopoietic". Blood Cells Mol Dis 2013; 51:3-8. [PMID: 23453528 DOI: 10.1016/j.bcmd.2013.01.008] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2013] [Accepted: 01/16/2013] [Indexed: 12/11/2022]
Abstract
Over a decade ago, several preclinical transplantation studies suggested the striking concept of the tissue-reconstituting ability (often referred to as HSC plasticity) of hematopoietic stem cells (HSCs). While this heralded an exciting time of radically new therapies for disorders of many organs and tissues, the concept was soon mired in controversy and remained dormant for almost a decade. This commentary provides a concise review of evidence for HSC plasticity, including more recent findings based on single HSC transplantation in mouse and clinical transplantation studies. There is strong evidence for the concept that HSCs are pluripotent and are the source for the majority, if not all, of the cell types in our body. Also discussed are some biological and experimental issues that need to be considered in the future investigation of HSC plasticity.
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Affiliation(s)
- Makio Ogawa
- Department of Pathology and Laboratory Medicine, Ralph H. Johnson VAMC, USA.
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Zhou J, Chen H, Li S, Xie Y, He W, Nan X, Yue W, Liu B, Pei X. Fibroblastic Potential of CD41+Cells in the Mouse Aorta-Gonad-Mesonephros Region and Yolk Sac. Stem Cells Dev 2012; 21:2592-605. [DOI: 10.1089/scd.2011.0572] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Affiliation(s)
- Junnian Zhou
- Stem Cell and Regenerative Medicine Lab, Beijing Institute of Transfusion Medicine, Beijing, China
| | - Haixu Chen
- Stem Cell and Regenerative Medicine Lab, Beijing Institute of Transfusion Medicine, Beijing, China
| | - Siting Li
- Stem Cell and Regenerative Medicine Lab, Beijing Institute of Transfusion Medicine, Beijing, China
| | - Yifan Xie
- Stem Cell and Regenerative Medicine Lab, Beijing Institute of Transfusion Medicine, Beijing, China
- Department of Histology and Embryology, Inner Mongolia Medical College, Inner Mongolia, China
| | - Wenyan He
- Laboratory of Oncology, Affiliated Hospital of Academy of Military Medical Sciences, Beijing, China
| | - Xue Nan
- Stem Cell and Regenerative Medicine Lab, Beijing Institute of Transfusion Medicine, Beijing, China
| | - Wen Yue
- Stem Cell and Regenerative Medicine Lab, Beijing Institute of Transfusion Medicine, Beijing, China
| | - Bing Liu
- Laboratory of Oncology, Affiliated Hospital of Academy of Military Medical Sciences, Beijing, China
| | - Xuetao Pei
- Stem Cell and Regenerative Medicine Lab, Beijing Institute of Transfusion Medicine, Beijing, China
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Hermans KC, Daskalopoulos EP, Blankesteijn WM. Interventions in Wnt signaling as a novel therapeutic approach to improve myocardial infarct healing. FIBROGENESIS & TISSUE REPAIR 2012; 5:16. [PMID: 22967504 PMCID: PMC3472244 DOI: 10.1186/1755-1536-5-16] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/04/2012] [Accepted: 08/20/2012] [Indexed: 01/12/2023]
Abstract
Following myocardial infarction, wound healing takes place in the infarct area where the non-viable cardiac tissue is replaced by a scar. Inadequate wound healing or insufficient maintenance of the extracellular matrix in the scar can lead to excessive dilatation of the ventricles, one of the hallmarks of congestive heart failure. Therefore, it is important to better understand the wound-healing process in the heart and to develop new therapeutic agents that target the infarct area in order to maintain an adequate cardiac function. One of these potential novel therapeutic targets is Wnt signaling. Wnt signaling plays an important role in embryonic myocardial development but in the adult heart the pathway is thought to be silent. However, there is increasing evidence that components of the Wnt pathway are re-expressed during cardiac repair, implying a regulatory role. Recently, several studies have been published where the effect of interventions in Wnt signaling on infarct healing has been studied. In this review, we will summarize the results of these studies and discuss the effects of these interventions on the different cell types that are involved in the wound healing process.
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Affiliation(s)
- Kevin Cm Hermans
- Department of Pharmacology, Cardiovascular Research Institute Maastricht, Maastricht University, 50 Universiteitssingel, 6229ER Maastricht, PO Box 616 6200MD, Maastricht, The Netherlands.
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23
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Nakamura Y, Asakura Y, Piras BA, Hirai H, Tastad CT, Verma M, Christ AJ, Zhang J, Yamazaki T, Yoshiyama M, Asakura A. Increased angiogenesis and improved left ventricular function after transplantation of myoblasts lacking the MyoD gene into infarcted myocardium. PLoS One 2012; 7:e41736. [PMID: 22848585 PMCID: PMC3404994 DOI: 10.1371/journal.pone.0041736] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2011] [Accepted: 06/28/2012] [Indexed: 01/05/2023] Open
Abstract
Skeletal myoblast transplantation has therapeutic potential for repairing damaged heart. However, the optimal conditions for this transplantation are still unclear. Recently, we demonstrated that satellite cell-derived myoblasts lacking the MyoD gene (MyoD(-/-)), a master transcription factor for skeletal muscle myogenesis, display increased survival and engraftment compared to wild-type controls following transplantation into murine skeletal muscle. In this study, we compare cell survival between wild-type and MyoD(-/-) myoblasts after transplantation into infarcted heart. We demonstrate that MyoD(-/-) myoblasts display greater resistance to hypoxia, engraft with higher efficacy, and show a larger improvement in ejection fraction than wild-type controls. Following transplantation, the majority of MyoD(-/-) and wild-type myoblasts form skeletal muscle fibers while cardiomyocytes do not. Importantly, the transplantation of MyoD(-/-) myoblasts induces a high degree of angiogenesis in the area of injury. DNA microarray data demonstrate that paracrine angiogenic factors, such as stromal cell-derived factor-1 (SDF-1) and placental growth factor (PlGF), are up-regulated in MyoD(-/-) myoblasts. In addition, over-expression and gene knockdown experiments demonstrate that MyoD negatively regulates gene expression of these angiogenic factors. These results indicate that MyoD(-/-) myoblasts impart beneficial effects after transplantation into an infarcted heart, potentially due to the secretion of paracrine angiogenic factors and enhanced angiogenesis in the area of injury. Therefore, our data provide evidence that a genetically engineered myoblast cell type with suppressed MyoD function is useful for therapeutic stem cell transplantation.
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Affiliation(s)
- Yasuhiro Nakamura
- Cardiovascular Division Department of Medicine, University of Minnesota Medical School, Minneapolis, Minnesota, United States of America
- Department of Internal Medicine and Cardiology, Osaka City University Medical School, Osaka, Japan
| | - Yoko Asakura
- Stem Cell Institute, University of Minnesota Medical School, Minneapolis, Minnesota, United States of America
- Paul and Sheila Wellstone Muscular Dystrophy Center, University of Minnesota Medical School, Minneapolis, Minnesota, United States of America
- Department of Neurology, University of Minnesota Medical School, Minneapolis, Minnesota, United States of America
| | - Bryan A. Piras
- Stem Cell Institute, University of Minnesota Medical School, Minneapolis, Minnesota, United States of America
- Paul and Sheila Wellstone Muscular Dystrophy Center, University of Minnesota Medical School, Minneapolis, Minnesota, United States of America
- Department of Neurology, University of Minnesota Medical School, Minneapolis, Minnesota, United States of America
| | - Hiroyuki Hirai
- Stem Cell Institute, University of Minnesota Medical School, Minneapolis, Minnesota, United States of America
- Paul and Sheila Wellstone Muscular Dystrophy Center, University of Minnesota Medical School, Minneapolis, Minnesota, United States of America
- Department of Neurology, University of Minnesota Medical School, Minneapolis, Minnesota, United States of America
| | - Christopher T. Tastad
- Stem Cell Institute, University of Minnesota Medical School, Minneapolis, Minnesota, United States of America
- Paul and Sheila Wellstone Muscular Dystrophy Center, University of Minnesota Medical School, Minneapolis, Minnesota, United States of America
- Department of Neurology, University of Minnesota Medical School, Minneapolis, Minnesota, United States of America
| | - Mayank Verma
- Stem Cell Institute, University of Minnesota Medical School, Minneapolis, Minnesota, United States of America
- Paul and Sheila Wellstone Muscular Dystrophy Center, University of Minnesota Medical School, Minneapolis, Minnesota, United States of America
- Department of Neurology, University of Minnesota Medical School, Minneapolis, Minnesota, United States of America
| | - Amanda J. Christ
- Stem Cell Institute, University of Minnesota Medical School, Minneapolis, Minnesota, United States of America
- Paul and Sheila Wellstone Muscular Dystrophy Center, University of Minnesota Medical School, Minneapolis, Minnesota, United States of America
- Department of Neurology, University of Minnesota Medical School, Minneapolis, Minnesota, United States of America
| | - Jianyi Zhang
- Cardiovascular Division Department of Medicine, University of Minnesota Medical School, Minneapolis, Minnesota, United States of America
| | - Takanori Yamazaki
- Department of Internal Medicine and Cardiology, Osaka City University Medical School, Osaka, Japan
| | - Minoru Yoshiyama
- Department of Internal Medicine and Cardiology, Osaka City University Medical School, Osaka, Japan
| | - Atsushi Asakura
- Stem Cell Institute, University of Minnesota Medical School, Minneapolis, Minnesota, United States of America
- Paul and Sheila Wellstone Muscular Dystrophy Center, University of Minnesota Medical School, Minneapolis, Minnesota, United States of America
- Department of Neurology, University of Minnesota Medical School, Minneapolis, Minnesota, United States of America
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24
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Unno K, Jain M, Liao R. Cardiac side population cells: moving toward the center stage in cardiac regeneration. Circ Res 2012; 110:1355-63. [PMID: 22581921 DOI: 10.1161/circresaha.111.243014] [Citation(s) in RCA: 51] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
Over the past decade, extensive work in animal models and humans has identified the presence of adult cardiac progenitor cells, capable of cardiomyogenic differentiation and likely contributors to cardiomyocyte turnover during normal development and disease. Among cardiac progenitor cells, there is a distinct subpopulation, termed "side population" (SP) progenitor cells, identified by their unique ability to efflux DNA binding dyes through an ATP-binding cassette transporter. This review highlights the literature on the isolation, characterization, and functional relevance of cardiac SP cells. We review the initial discovery of cardiac SP cells in adult myocardium as well as their capacity for functional cardiomyogenic differentiation and role in cardiac regeneration after myocardial injury. Finally, we discuss recent advances in understanding the molecular regulators of cardiac SP cell proliferation and differentiation, as well as likely future areas of investigation required to realize the goal of effective cardiac regeneration.
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Affiliation(s)
- Kazumasa Unno
- Cardiovascular Division, Department of Medicine, Brigham and Women’s Hospital, Harvard Medical School, Boston, MA, USA
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Nagai T, Komuro I. Gene and cytokine therapy for heart failure: molecular mechanisms in the improvement of cardiac function. Am J Physiol Heart Circ Physiol 2012; 303:H501-12. [PMID: 22777420 DOI: 10.1152/ajpheart.00130.2012] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
Despite significant advances in pharmacological and clinical treatment, heart failure (HF) remains a leading cause of morbidity and mortality worldwide. Many new therapeutic strategies, including cell transplantation, gene delivery, and cytokines or other small molecules, have been explored to treat HF. Recent advancement of our understanding of the molecules that regulate cardiac function uncover many of the therapeutic key molecules to treat HF. Furthermore, a theory of paracrine mechanism, which underlies the beneficial effects of cell therapy, leads us to search novel target molecules for genetic or pharmacological strategy. Gene therapy means delivery of genetic materials into cells to achieve therapeutic effects. Recently, gene transfer technology in the cardiovascular system has been improved and several therapeutic target genes have been started to examine in clinical research, and some of the promising results have been emerged. Among the various bioactive reagents, cytokines such as granulocyte colony-stimulating factor and erythropoietin have been well examined, and a number of clinical trials for acute myocardial infarction and chronic HF have been conducted. Although further research is needed in both preclinical and clinical areas in terms of molecular mechanisms, safety, and efficiency, both gene and cytokine therapy have a great possibility to open the new era of the treatment of HF.
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Affiliation(s)
- Toshio Nagai
- Department of Cardiovascular Science and Medicine, Chiba University Graduate School of Medicine, Chiba, Japan
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Brunt KR, Weisel RD, Li RK. Stem cells and regenerative medicine - future perspectives. Can J Physiol Pharmacol 2012; 90:327-35. [PMID: 22401558 DOI: 10.1139/y2012-007] [Citation(s) in RCA: 52] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
Stem cell research has expanded at an exponential rate, but its therapeutic applications have progressed much more slowly. Currently, the research focuses on understanding embryonic, adult, and inducible pluripotent stem cells. Translation of adult stem cell research has established a definitive benefit that is greater than that of the current standard of care in the field of cardiovascular medicine. The future of stem cell research and therapy will continue to provide novel avenues of diagnostics, therapeutics, and tissue regeneration. Here we discuss a brief history of stem cell research as it transitioned from the 20th to the 21st century. We address lessons learned in the first decade of the new millennium that could help guide others to translate research into therapy across disciplines. Finally, we highlight future goals and challenges that must be overcome and offer some perspective on the bright future of stem cell research and therapy.
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Affiliation(s)
- Keith R Brunt
- Division of Cardiovascular Surgery, MaRS Centre, Toronto Medical Discovery Tower, University Health Network, ON, Canada.
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Liehn EA, Postea O, Curaj A, Marx N. Repair after myocardial infarction, between fantasy and reality: the role of chemokines. J Am Coll Cardiol 2012; 58:2357-62. [PMID: 22115639 DOI: 10.1016/j.jacc.2011.08.034] [Citation(s) in RCA: 121] [Impact Index Per Article: 10.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/20/2011] [Revised: 07/26/2011] [Accepted: 08/02/2011] [Indexed: 12/20/2022]
Abstract
Despite considerable progress over the last decades, acute myocardial infarction continues to remain the major cause of morbidity and mortality worldwide. The present therapies include only cause-dependent interventions, which are not able to reduce myocardial necrosis and optimize cardiac repair following infarction. This review highlights the cellular and molecular processes after myocardial injury and focuses on chemokines, the main modulators of the inflammatory and reparatory events, as the most valuable drug targets.
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Affiliation(s)
- Elisa A Liehn
- Institute for Molecular Cardiovascular Research (IMCAR), RWTH Aachen University, Aachen, Germany.
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Lee HJ, Choi CW, Kim EK, Kim HS, Kim BI, Choi JH. Granulocyte colony-stimulating factor reduces hyperoxia-induced alveolarization inhibition by increasing angiogenic factors. Neonatology 2012; 101:278-84. [PMID: 22286224 DOI: 10.1159/000335285] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/20/2011] [Accepted: 11/22/2011] [Indexed: 01/04/2023]
Abstract
BACKGROUND Granulocyte colony-stimulating factor (G-CSF) is known to mobilize endothelial progenitor cells (EPCs) from bone marrow. EPCs reportedly promote neovascularization and participate in the repair of lung structure in adult animals. OBJECTIVE We tested the hypothesis that G-CSF contributes to alveolar growth by increasing the production of angiogenic growth factor in the lungs of hyperoxia-exposed neonatal mice. METHODS Neonatal mice were exposed to hyperoxia (80%) or room air (RA) for 7 days and treated with G-CSF (50 μg/kg/day) or vehicle for 5 days. Blood was subjected to flow cytometry to gate for CD45(dim/-)/Sca-1(+)/CD133(+)/vascular endothelial growth factor (VEGF) receptor-2 (VEGFR2) to define the EPC population at day 7. RESULTS The percentage of EPCs in the peripheral blood and VEGF and VEGFR2 levels in the lungs of neonatal mice exposed to hyperoxia were significantly reduced compared to those of mice kept in RA. G-CSF significantly increased EPCs in the peripheral blood, and VEGF and VEGFR2 levels in the lungs of both mice exposed to hyperoxia and mice kept in RA. G-CSF restored alveolarization inhibited by hyperoxia without altering normal alveolarization under RA. CONCLUSION G-CSF restored alveolarization inhibited by hyperoxia in the developing lungs and this alveolarization-enhancing effect of G-CSF is associated with mobilization of EPCs and upregulation of VEGF signaling.
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Affiliation(s)
- Hyun Ju Lee
- Department of Pediatrics, Seoul National University College of Medicine, Seoul, Korea
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Abstract
The use of stem cell applications has been explored and aimed at regenerating the intervertebral disk. The microenvironment in which cells of the intervertebral disk reside is harsh; however, researchers have reported on many applications for stem cells, including research aimed at defining and stimulating endogenous stem cell populations, methods to induce stem cell differentiation toward intervertebral disk cell phenotype in vivo, and direct transplantation of stem cells into damaged intervertebral disk to promote transplanted site-dependant differentiation. Successful results have been reported, although limitations remain. This article reviews the current status of stem cell research as applied to the intervertebral disk.
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Affiliation(s)
- Daisuke Sakai
- Department of Orthopaedic Surgery, Surgical Science and, Research Center for Regenerative Medicine, Tokai University School of Medicine, Isehara, Kanagawa, Japan.
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Takeda N, Manabe I. Cellular Interplay between Cardiomyocytes and Nonmyocytes in Cardiac Remodeling. Int J Inflam 2011; 2011:535241. [PMID: 21941677 PMCID: PMC3175723 DOI: 10.4061/2011/535241] [Citation(s) in RCA: 67] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2011] [Revised: 05/28/2011] [Accepted: 06/12/2011] [Indexed: 01/12/2023] Open
Abstract
Cardiac hypertrophy
entails complex structural remodeling involving
rearrangement of muscle fibers, interstitial
fibrosis, accumulation of extracellular matrix,
and angiogenesis. Many of the processes
underlying cardiac remodeling have features in
common with chronic inflammatory processes.
During these processes, nonmyocytes, such as
endothelial cells, fibroblasts, and immune cells,
residing in or infiltrating into the myocardial
interstitium play active roles. This paper
mainly addresses the functional roles of
nonmyocytes during cardiac remodeling. In
particular, we focus on the communication
between cardiomyocytes and nonmyocytes through
direct cell-cell interactions and
autocrine/paracrine-mediated
pathways.
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Affiliation(s)
- Norifumi Takeda
- Department of Cell and Developmental Biology and Penn Cardiovascular Institute, Perelman School of Medicine at the University of Pennsylvania, Philadelphia, PA 19104, USA
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Sanganalmath SK, Abdel-Latif A, Bolli R, Xuan YT, Dawn B. Hematopoietic cytokines for cardiac repair: mobilization of bone marrow cells and beyond. Basic Res Cardiol 2011; 106:709-33. [PMID: 21541807 PMCID: PMC4281455 DOI: 10.1007/s00395-011-0183-y] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/03/2011] [Revised: 04/11/2011] [Accepted: 04/15/2011] [Indexed: 12/20/2022]
Abstract
Hematopoietic cytokines, traditionally known to influence cellular proliferation, differentiation, maturation, and lineage commitment in the bone marrow, include granulocyte colony-stimulating factor (G-CSF), granulocyte-macrophage colony-stimulating factor, stem cell factor, Flt-3 ligand, and erythropoietin among others. Emerging evidence suggests that these cytokines also exert multifarious biological effects on diverse nonhematopoietic organs and tissues. Although the precise mechanisms remain unclear, numerous studies in animal models of myocardial infarction (MI) and heart failure indicate that hematopoietic cytokines confer potent cardiovascular benefits, possibly through mobilization and subsequent homing of bone marrow-derived cells into the infarcted heart with consequent induction of myocardial repair involving multifarious mechanisms. In addition, these cytokines are also known to exert direct cytoprotective effects. However, results from small-scale clinical trials of G-CSF therapy as a single agent after acute MI have been discordant and largely disappointing. It is likely that cardiac repair following cytokine therapy depends on a number of known and unknown variables, and further experimental and clinical studies are certainly warranted to accurately determine the true therapeutic potential of such therapy. In this review, we discuss the biological features of several key hematopoietic cytokines and present the basic and clinical evidence pertaining to cardiac repair with hematopoietic cytokine therapy.
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Affiliation(s)
- Santosh K. Sanganalmath
- Division of Cardiovascular Diseases, Cardiovascular Research Institute, University of Kansas Medical Center, 3901 Rainbow Blvd, Rm. 1001 Eaton, MS 3006, Kansas City, KS 66160, USA
| | - Ahmed Abdel-Latif
- Division of Cardiovascular Medicine, University of Kentucky, Lexington, KY 40536, USA
| | - Roberto Bolli
- Institute of Molecular Cardiology, University of Louisville, Louisville, KY 40292, USA
| | - Yu-Ting Xuan
- Division of Cardiovascular Diseases, Cardiovascular Research Institute, University of Kansas Medical Center, 3901 Rainbow Blvd, Rm. 1001 Eaton, MS 3006, Kansas City, KS 66160, USA
| | - Buddhadeb Dawn
- Division of Cardiovascular Diseases, Cardiovascular Research Institute, University of Kansas Medical Center, 3901 Rainbow Blvd, Rm. 1001 Eaton, MS 3006, Kansas City, KS 66160, USA
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Masuya M, Nakamura S, Yukimoto H, Miyata E, Ino K, Liu B, Suzuki K, Ohishi K, Katayama N. Ly6C(+) monocytes are extrahepatic precursors of hepatic stellate cells in the injured liver of mice. Exp Hematol 2011; 39:934-46. [PMID: 21703982 DOI: 10.1016/j.exphem.2011.06.001] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2010] [Revised: 05/09/2011] [Accepted: 06/06/2011] [Indexed: 12/19/2022]
Abstract
OBJECTIVE We previously reported that hepatic stellate cells (HpSCs) are of hematopoietic origin in liver injury. However, the immediate precursors of HpSCs remain unknown. This study was conducted to elucidate whether terminally differentiated blood cells can differentiate into HpSCs. MATERIALS AND METHODS We adoptively transferred a variety of cells isolated from enhanced green fluorescent protein (EGFP)-transgenic mice into carbon tetrachloride (CCl(4))-treated nontransgenic mice twice weekly for 2 weeks. We examined the presence of EGFP(+) HpSCs in the injured liver using immunofluorescence analysis. RESULTS Monocytes, neutrophils, eosinophils, B cells, or T cells from EGFP mice were transferred into CCl(4)-treated mice. Thirty percent of EGFP(+) cells in the livers of mice given Ly6C(high)c-kit(-) monocytes were negative for CD45, but were positive for glial fibrillary acidic protein, desmin, CD146, ADAMTS13, and α-smooth muscle actin, well-known markers of HpSCs. EGFP(+)CD45(-) cells were predominantly positive for glial fibrillary acidic protein. Although 48% of EGFP(+) cells were positive for procollagen type I, half of them were CD45(-). In the livers of mice given neutrophils, eosinophils, B cells, or T cells, all of the EGFP(+) cells were CD45(+). The majority of EGFP(+) cells in the nonparenchymal cell fraction purified from the livers of mice given Ly6C(high)c-kit(-) monocytes contained lipid droplets and were positive for glial fibrillary acidic protein, desmin, ADAMTS13, and procollagen type I. When Ly6C(+) monocyte-depleted peripheral blood total nucleated cells were adoptively transferred into CCl(4)-treated mice, we found no EGFP(+)CD45(-) cells in the liver. CONCLUSIONS These results suggest that Ly6C(+) monocytes can become HpSCs in the injured liver.
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Affiliation(s)
- Masahiro Masuya
- Department of Hematology and Oncology, Mie University Graduate School of Medicine, Japan.
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Kanlop N, Thommasorn S, Palee S, Weerateerangkul P, Suwansirikul S, Chattipakorn S, Chattipakorn N. Granulocyte colony-stimulating factor stabilizes cardiac electrophysiology and decreases infarct size during cardiac ischaemic/reperfusion in swine. Acta Physiol (Oxf) 2011; 202:11-20. [PMID: 21276206 DOI: 10.1111/j.1748-1716.2011.02259.x] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
AIM Effects of granulocyte colony-stimulating factor (G-CSF) on cardiac electrophysiology during ischaemic/reperfusion (I/R) period are unclear. We hypothesized that G-CSF stabilizes cardiac electrophysiology during I/R injury by prolonging the effective refractory period (ERP), increasing the ventricular fibrillation threshold (VFT) and decreasing the defibrillation threshold (DFT), and that the cardioprotection of G-CSF is via preventing cardiac mitochondrial dysfunction. METHODS In intact-heart protocol, pigs were infused with either G-CSF or vehicle (n = 7 each group) without I/R induction. In I/R protocol, pigs were infused with G-CSF (0.33 μg kg(-1 ) min(-1) ) or vehicle (n = 8 each group) for 30 min prior to a 45-min left anterior descending artery occlusion and at reperfusion. Diastolic pacing threshold (DPT), ERP, VFT and DFT were determined in all pigs before and during I/R period. Rat's isolated cardiac mitochondria were used to test the protective effect of G-CSF (100 nm) in H(2) O(2) -induced mitochondrial oxidative damage. RESULTS Neither G-CSF nor vehicle altered any parameter in intact-heart pigs. During ischaemic period, G-CSF significantly increased the DPT, ERP and VFT without altering the DFT. During reperfusion, G-CSF continued to increase the DPT without altering other parameters. The infarct size was significantly decreased in the G-CSF group, compared to the vehicle. G-CSF could also prevent cardiac mitochondrial swelling, decrease ROS production, and prevent mitochondrial membrane depolarization. CONCLUSION G-CSF increases the DPT, ERP and VFT and reduces the infarct size, thus stabilizing the myocardial electrophysiology, and preventing fatal arrhythmia during I/R. The protective mechanism could be via its effect in preventing cardiac mitochondrial dysfunction.
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Affiliation(s)
- N Kanlop
- Cardiac Electrophysiology Unit, Department of Physiology, Chiang Mai University, Thailand
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Zhang P, Su J, King ME, Maldonado AE, Park C, Mende U. Regulator of G protein signaling 2 is a functionally important negative regulator of angiotensin II-induced cardiac fibroblast responses. Am J Physiol Heart Circ Physiol 2011; 301:H147-56. [PMID: 21498776 DOI: 10.1152/ajpheart.00026.2011] [Citation(s) in RCA: 34] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
Cardiac fibroblasts play a key role in fibrosis development in response to stress and injury. Angiotensin II (ANG II) is a major profibrotic activator whose downstream effects (such as phospholipase Cβ activation, cell proliferation, and extracellular matrix secretion) are mainly mediated via G(q)-coupled AT(1) receptors. Regulators of G protein signaling (RGS), which accelerate termination of G protein signaling, are expressed in the myocardium. Among them, RGS2 has emerged as an important player in modulating G(q)-mediated hypertrophic remodeling in cardiac myocytes. To date, no information is available on RGS in cardiac fibroblasts. We tested the hypothesis that RGS2 is an important regulator of ANG II-induced signaling and function in ventricular fibroblasts. Using an in vitro model of fibroblast activation, we have demonstrated expression of several RGS isoforms, among which only RGS2 was transiently upregulated after short-term ANG II stimulation. Similar results were obtained in fibroblasts isolated from rat hearts after in vivo ANG II infusion via minipumps for 1 day. In contrast, prolonged ANG II stimulation (3-14 days) markedly downregulated RGS2 in vivo. To delineate the functional effects of RGS expression changes, we used gain- and loss-of-function approaches. Adenovirally infected RGS2 had a negative regulatory effect on ANG II-induced phospholipase Cβ activity, cell proliferation, and total collagen production, whereas RNA interference of endogenous RGS2 had opposite effects, despite the presence of several other RGS. Together, these data suggest that RGS2 is a functionally important negative regulator of ANG II-induced cardiac fibroblast responses that may play a role in ANG II-induced fibrosis development.
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Affiliation(s)
- Peng Zhang
- Cardiovascular Research Center, Rhode Island Hospital and Alpert Medical School of Brown Univ., 1 Hoppin St., Providence, RI 02903, USA.
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Delgaudine M, Gothot A, Beguin Y. Spontaneous and granulocyte–colony-stimulating factor-enhanced marrow response and progenitor cell mobilization in mice after myocardial infarction. Cytotherapy 2010; 12:909-18. [DOI: 10.3109/14653240903580262] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
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Kränkel N, Spinetti G, Amadesi S, Madeddu P. Targeting stem cell niches and trafficking for cardiovascular therapy. Pharmacol Ther 2010; 129:62-81. [PMID: 20965213 DOI: 10.1016/j.pharmthera.2010.10.002] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2010] [Accepted: 10/06/2010] [Indexed: 12/12/2022]
Abstract
Regenerative cardiovascular medicine is the frontline of 21st-century health care. Cell therapy trials using bone marrow progenitor cells documented that the approach is feasible, safe and potentially beneficial in patients with ischemic disease. However, cardiovascular prevention and rehabilitation strategies should aim to conserve the pristine healing capacity of a healthy organism as well as reactivate it under disease conditions. This requires an increased understanding of stem cell microenvironment and trafficking mechanisms. Engagement and disengagement of stem cells of the osteoblastic niche is a dynamic process, finely tuned to allow low amounts of cells move out of the bone marrow and into the circulation on a regular basis. The balance is altered under stress situations, like tissue injury or ischemia, leading to remarkably increased cell egression. Individual populations of circulating progenitor cells could give rise to mature tissue cells (e.g. endothelial cells or cardiomyocytes), while the majority may differentiate to leukocytes, affecting the environment of homing sites in a paracrine way, e.g. promoting endothelial survival, proliferation and function, as well as attenuating or enhancing inflammation. This review focuses on the dynamics of the stem cell niche in healthy and disease conditions and on therapeutic means to direct stem cell/progenitor cell mobilization and recruitment into improved tissue repair.
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Affiliation(s)
- Nicolle Kränkel
- Institute of Physiology/Cardiovascular Research, University of Zürich, and Cardiovascular Center, Cardiology, University Hospital Zurich, Zürich, Switzerland.
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Teekakirikul P, Eminaga S, Toka O, Alcalai R, Wang L, Wakimoto H, Nayor M, Konno T, Gorham JM, Wolf CM, Kim JB, Schmitt JP, Molkentin JD, Norris RA, Tager AM, Hoffman SR, Markwald RR, Seidman CE, Seidman JG. Cardiac fibrosis in mice with hypertrophic cardiomyopathy is mediated by non-myocyte proliferation and requires Tgf-β. J Clin Invest 2010; 120:3520-9. [PMID: 20811150 DOI: 10.1172/jci42028] [Citation(s) in RCA: 336] [Impact Index Per Article: 24.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2009] [Accepted: 07/14/2010] [Indexed: 02/06/2023] Open
Abstract
Mutations in sarcomere protein genes can cause hypertrophic cardiomyopathy (HCM), a disorder characterized by myocyte enlargement, fibrosis, and impaired ventricular relaxation. Here, we demonstrate that sarcomere protein gene mutations activate proliferative and profibrotic signals in non-myocyte cells to produce pathologic remodeling in HCM. Gene expression analyses of non-myocyte cells isolated from HCM mouse hearts showed increased levels of RNAs encoding cell-cycle proteins, Tgf-β, periostin, and other profibrotic proteins. Markedly increased BrdU labeling, Ki67 antigen expression, and periostin immunohistochemistry in the fibrotic regions of HCM hearts confirmed the transcriptional profiling data. Genetic ablation of periostin in HCM mice reduced but did not extinguish non-myocyte proliferation and fibrosis. In contrast, administration of Tgf-β-neutralizing antibodies abrogated non-myocyte proliferation and fibrosis. Chronic administration of the angiotensin II type 1 receptor antagonist losartan to mutation-positive, hypertrophy-negative (prehypertrophic) mice prevented the emergence of hypertrophy, non-myocyte proliferation, and fibrosis. Losartan treatment did not reverse pathologic remodeling of established HCM but did reduce non-myocyte proliferation. These data define non-myocyte activation of Tgf-β signaling as a pivotal mechanism for increased fibrosis in HCM and a potentially important factor contributing to diastolic dysfunction and heart failure. Preemptive pharmacologic inhibition of Tgf-β signals warrants study in human patients with sarcomere gene mutations.
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Affiliation(s)
- Polakit Teekakirikul
- Department of Genetics, Harvard Medical School, Boston, Massachusetts 02115, USA
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Abstract
Heart injury from many causes can end up in a common final pathway of pathologic remodeling and fibrosis, promoting heart failure development. Dilated cardiomyopathy is an important cause of heart failure and often results from virus-triggered myocarditis. Monocytes and monocyte-like cells represent a major subset of heart-infiltrating cells at the injury site. These bone marrow-derived cells promote not only tissue injury in the short term but also angiogenesis and collagen deposition in the long term. Thus, they are critically involved in the typical tissue fibrosis, which evolves in the dilating ventricle during the process of pathologic remodeling. Recent findings suggest that heart-infiltrating monocyte-like cells indeed contain a pool of progenitors, which represent the cellular source both for accumulation of differentiated monocytes during the acute inflammatory phase and for transforming growth factor-beta-mediated myocardial fibrosis during the later chronic stages of disease. Obviously, a delicate balance of proinflammatory and profibrotic cytokines dictates the fate of bone marrow-derived heart-infiltrating progenitors and directly influences the morphologic phenotype of the affected heart. In this minireview, we provide an update on these mechanisms and discuss their significance in pathologic remodeling and heart failure progression after myocarditis.
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Watsky MA, Weber KT, Sun Y, Postlethwaite A. New insights into the mechanism of fibroblast to myofibroblast transformation and associated pathologies. INTERNATIONAL REVIEW OF CELL AND MOLECULAR BIOLOGY 2010; 282:165-92. [PMID: 20630469 DOI: 10.1016/s1937-6448(10)82004-0] [Citation(s) in RCA: 45] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
Myofibroblasts are a differentiated cell type essential for wound healing, participating in tissue remodeling following insult. Myofibroblasts are typically activated fibroblasts, although they can also be derived from other cell types, including epithelial cells, endothelial cells, and mononuclear cells. In most organ systems, cell signals initiated following tissue-specific insult or during the metastatic process lead to differentiation of fibroblasts or other precursor cells to the myofibroblast phenotype. In addition to their beneficial and necessary role in wound healing, myofibroblasts also contribute to a number of pathologies, primarily fibrotic processes and tumor invasiveness. This review explores both traditional and nontraditional concepts of myofibroblast differentiation in the cornea, skin, heart, and other tissues, as well as some of the pathologies associated with myofibroblast activities.
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Affiliation(s)
- Mitchell A Watsky
- Department of Physiology, University of Tennessee Health Science Center, Memphis, Tennessee, USA
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Stem cell plasticity: recapping the decade, mapping the future. Exp Hematol 2010; 38:529-39. [PMID: 20438800 DOI: 10.1016/j.exphem.2010.04.013] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2010] [Revised: 04/08/2010] [Accepted: 04/13/2010] [Indexed: 12/20/2022]
Abstract
In slightly more than a decade of stem cell plasticity research, 24 peer-reviewed articles have demonstrated plasticity across organ and/or embryonic lineage boundaries at the single-cell level, with only 1 article showing negative results. These data, taken together with data about reversibility of gene restrictions that have also accumulated during the same period, indicate that postnatal cells, even "terminally differentiated" ones, have a degree of plasticity not appreciated previously. This review looks back at the four known pathways of cell plasticity and at previously described "plasticity principles" of Genomic Completeness, Cellular Uncertainty, Stochasticity of Cell Origin and Fate, relating these to issues of experimental design and discourse that are key to understanding and evaluating plasticity data. Although the physiologic roles played by such plasticity may still be debated, the manipulations of these phenomena for therapeutic or industrial purposes should finally be considered ripe for exploration. For the future, plasticity, indeed all stem cell biology, must be considered as part of a larger web of cell-to-cell and cell-to-matrix interactions that function fully only at the tissue level; thus, the success of stem cell biology necessarily must involve assembling data from cell and molecular biology research into systems of interactions that might be reasonably called "tissue biology." Interdisciplinary collaborations with complexity and chaos theorists, using mathematical/computer modeling of cell behaviors, will be vital to fully exploring stem cell behaviors in the coming decades.
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Ogawa M, Larue AC, Watson PM, Watson DK. Hematopoietic stem cell origin of connective tissues. Exp Hematol 2010; 38:540-7. [PMID: 20412832 DOI: 10.1016/j.exphem.2010.04.005] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2010] [Revised: 04/06/2010] [Accepted: 04/08/2010] [Indexed: 02/06/2023]
Abstract
Connective tissue consists of "connective tissue proper," which is further divided into loose and dense (fibrous) connective tissues and "specialized connective tissues." Specialized connective tissues consist of blood, adipose tissue, cartilage, and bone. In both loose and dense connective tissues, the principal cellular element is fibroblasts. It has been generally believed that all cellular elements of connective tissue, including fibroblasts, adipocytes, chondrocytes, and bone cells, are generated solely by mesenchymal stem cells. Recently, a number of studies, including those from our laboratory based on transplantation of single hematopoietic stem cells, strongly suggested a hematopoietic stem cell origin of these adult mesenchymal tissues. This review summarizes the experimental evidence for this new paradigm and discusses its translational implications.
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Affiliation(s)
- Makio Ogawa
- Department of Pathology and Laboratory Medicine, Medical University of South Carolina, Charleston, SC29401-5799, USA.
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Derivation of multipotent progenitors from human circulating CD14+ monocytes. Exp Hematol 2010; 38:557-63. [PMID: 20362030 DOI: 10.1016/j.exphem.2010.03.015] [Citation(s) in RCA: 53] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2010] [Revised: 02/28/2010] [Accepted: 03/24/2010] [Indexed: 01/17/2023]
Abstract
Circulating CD14(+) monocytes are originated from hematopoietic stem cells in the bone marrow and believed to be committed precursors for phagocytes, such as macrophages. Recently, we have reported a primitive cell population termed monocyte-derived multipotential cells (MOMCs), which has a fibroblast-like morphology in culture and a unique phenotype positive for CD14, CD45, CD34, and type I collagen. MOMCs are derived from circulating CD14(+) monocytes, but circulating precursors for MOMCs still remain undetermined. Comparative analysis of gene expression profiles of MOMCs and other monocyte-derived cells has revealed that embryonic stem cell markers, Nanog and Oct-4, are specifically expressed by MOMCs. In vitro generation of MOMCs requires binding to fibronectin and exposure to soluble factors derived from activated platelets. MOMCs contain progenitors with capacity to differentiate into a variety of nonphagocytes, including bone, cartilage, fat, skeletal and cardiac muscle, neuron, and endothelium, indicating that circulating monocytes are more multipotent than previously thought. In addition, MOMCs are capable of promoting ex vivo expansion of human hematopoietic progenitor cells through direct cell-to-cell contact and secretion of a variety of hematopoietic growth factors. These findings obtained from the research on MOMCs indicate that CD14(+) monocytes in circulation are involved in a variety of physiologic functions other than innate and acquired immune responses, such as repair and regeneration of the damaged tissue.
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Hematopoietic stem cell origin of mesenchymal cells: opportunity for novel therapeutic approaches. Int J Hematol 2010; 91:353-9. [PMID: 20336396 DOI: 10.1007/s12185-010-0554-4] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2010] [Accepted: 03/08/2010] [Indexed: 12/20/2022]
Abstract
There has been a general belief that there are two types of adult stem cells, i.e., hematopoietic stem cells (HSCs) and mesenchymal stem cells (MSCs), each with distinctly different functions. According to this dogma, HSCs produce blood cells, while MSCs are thought to generate a number of non-hematopoietic cells including fibroblasts, adipocytes, chondrocytes and bone cells. Recently, a number of studies, including those in our laboratory based on single HSC transplantation, blurred the clear distinction between HSCs and MSCs and strongly suggested an HSC origin of the adult mesenchymal tissues. This review summarizes the experimental evidence for this new paradigm and the literature pointing out the vagary in the stem cell nature of MSCs. The concept of the HSC origin of mesenchymal cells will have many immediate and long-term impacts on the therapies of diseases and injuries of the connective tissues.
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Matsumoto T, Watanabe H, Ueno T, Tsunemi A, Hatano B, Kusumi Y, Mitsumata M, Fukuda N, Matsumoto K, Saito S, Mugishima H. Appropriate doses of Granulocyte-Colony Stimulating Factor Reduced Atherosclerotic Plaque Formation and Increased Plaque Stability in Cholesterol-Fed Rabbits. J Atheroscler Thromb 2010; 17:84-96. [DOI: 10.5551/jat.2279] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022] Open
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Ausoni S, Sartore S. The cardiovascular unit as a dynamic player in disease and regeneration. Trends Mol Med 2009; 15:543-52. [DOI: 10.1016/j.molmed.2009.10.002] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2009] [Revised: 09/07/2009] [Accepted: 10/06/2009] [Indexed: 10/20/2022]
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Cunnington RH, Nazari M, Dixon IM. c-Ski, Smurf2, and Arkadia as regulators of TGF-β signaling: new targets for managing myofibroblast function and cardiac fibrosisThis article is one of a selection of papers published in a special issue celebrating the 125th anniversary of the Faculty of Medicine at the University of Manitoba. Can J Physiol Pharmacol 2009; 87:764-72. [DOI: 10.1139/y09-076] [Citation(s) in RCA: 34] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Recent studies demonstrate the critical role of the extracellular matrix in the organization of parenchymal cells in the heart. Thus, an understanding of the modes of regulation of matrix production by cardiac myofibroblasts is essential. Transforming growth factor β (TGF-β) signaling is transduced through the canonical Smad pathway, and the involvement of this pathway in matrix synthesis and other processes requires precise control. Inhibition of Smad signaling may be achieved at the receptor level through the targeting of the TGF-β type I receptors with an inhibitory Smad7 / Smurf2 complex, or at the transcriptional level through c-Ski / receptor-Smad / co-mediator Smad4 interactions. Conversely, Arkadia protein intensifies TGF-β-induced effects by marking c-Ski and inhibitory Smad7 for destruction. The study of these TGF-β mediators is essential for future treatment of fibrotic disease, and this review highlights recent relevant findings that may impact our understanding of cardiac fibrosis.
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Affiliation(s)
- Ryan H. Cunnington
- Institute of Cardiovascular Sciences, St. Boniface General Hospital Research Centre, Department of Physiology, University of Manitoba, 351 Tache Avenue, Winnipeg, MB R2H 2A6, Canada
| | - Mansoreh Nazari
- Institute of Cardiovascular Sciences, St. Boniface General Hospital Research Centre, Department of Physiology, University of Manitoba, 351 Tache Avenue, Winnipeg, MB R2H 2A6, Canada
| | - Ian M.C. Dixon
- Institute of Cardiovascular Sciences, St. Boniface General Hospital Research Centre, Department of Physiology, University of Manitoba, 351 Tache Avenue, Winnipeg, MB R2H 2A6, Canada
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Shirai K, Sera Y, Bulkeley W, Mehrotra M, Moussa O, LaRue AC, Watson DK, Stuart RK, Lazarchick J, Ogawa M. Hematopoietic stem cell origin of human fibroblasts: cell culture studies of female recipients of gender-mismatched stem cell transplantation and patients with chronic myelogenous leukemia. Exp Hematol 2009; 37:1464-71. [PMID: 19786066 DOI: 10.1016/j.exphem.2009.09.008] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2009] [Revised: 09/23/2009] [Accepted: 09/23/2009] [Indexed: 12/20/2022]
Abstract
OBJECTIVE Our series of studies using transplantation of single hematopoietic stem cells (HSCs) demonstrated that mouse fibroblasts/myofibroblasts are derived from HSCs. In order to determine the origin of human fibroblasts, we established a method for culturing fibroblasts from human peripheral blood (PB) mononuclear cells and studied fibroblasts from gender-mismatched HSC transplant recipients and patients with untreated Philadelphia chromosome-positive chronic myelogenous leukemia (CML). MATERIALS AND METHODS We cultured PB cells from three female subjects who showed near-complete hematopoietic reconstitution from transplantation of granulocyte-colony stimulating factor-mobilized male PB cells and examined the resulting fibroblasts using fluorescent in situ hybridization for Y chromosome. Because the mobilized PB cells may contain mesenchymal stem cells, we could not determine the HSC or mesenchymal stem cell origin of the fibroblasts seen in culture. To further document the HSC origin of human fibroblasts, we next examined fibroblasts from two patients with untreated CML, a known clonal disorder of HSCs. RESULTS All cultured fibroblasts from female recipients of male cells showed the presence of Y chromosome, indicating the donor origin of fibroblasts. Cultured fibroblasts from the CML patients revealed the presence of BCR-ABL translocation. This demonstration provided strong evidence for the HSC origin of human fibroblasts because CML is a clonal disorder of the HSC. CONCLUSIONS These studies strongly suggest that human fibroblasts are derived from HSCs. In addition, the results suggest that fibrosis seen in patients with CML may be a part of the clonal process.
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Affiliation(s)
- Keisuke Shirai
- Department of Medicine, Medical University of South Carolina, Charleston, SC, USA
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Inhibitor of DNA binding-1 promotes the migration and proliferation of endothelial progenitor cells in vitro. Mol Cell Biochem 2009; 335:19-27. [DOI: 10.1007/s11010-009-0236-9] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2009] [Accepted: 08/13/2009] [Indexed: 12/20/2022]
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Macambira SG, Vasconcelos JF, Costa CRS, Klein W, Lima RS, Guimarães P, Vidal DTA, Mendez LC, Ribeiro-Dos-Santos R, Soares MBP. Granulocyte colony-stimulating factor treatment in chronic Chagas disease: preservation and improvement of cardiac structure and function. FASEB J 2009; 23:3843-50. [PMID: 19608624 DOI: 10.1096/fj.09-137869] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Abstract
This study investigates the effects of granulocyte colony-stimulating factor (G-CSF) therapy in experimental chronic chagasic cardiomyopathy. Chagas disease is one of the leading causes of heart failure in Latin America and remains without an effective treatment other than cardiac transplantation. C57BL/6 mice were infected with 10(3) trypomastigotes of Trypanosoma cruzi, and chronic chagasic mice were treated with G-CSF or saline (control). Evaluations following treatment were functional, immunological, and histopathological. Comparing hearts of G-CSF-treated mice showed reduced inflammation and fibrosis compared to saline-treated chagasic mice. G-CSF treatment did not alter the parasite load but caused an increase in the number of apoptotic inflammatory cells in the heart. Cardiac conductance disturbances in all infected animals improved or remained stable due to the G-CSF treatment, whereas all of the saline-treated mice deteriorated. The distance run on a treadmill and the exercise time were significantly greater in G-CSF-treated mice when compared to chagasic controls, as well as oxygen consumption (VO(2)), carbon dioxide production (VCO(2)), and respiratory exchange ration (RER) during exercise. Administration of G-CSF in experimental cardiac ischemia had beneficial effects on cardiac structure, which were well correlated with improvements in cardiac function and whole animal performance.
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Affiliation(s)
- Simone G Macambira
- Centro de Pesquisas Gonçalo Moniz, Fundação Oswaldo Cruz, Salvador, Bahia, Brazil
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