1
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Christodoulou MV, Petkou E, Atzemoglou N, Gkorla E, Karamitrou A, Simos YV, Bellos S, Bekiari C, Kouklis P, Konitsiotis S, Vezyraki P, Peschos D, Tsamis KI. Cell replacement therapy with stem cells in multiple sclerosis, a systematic review. Hum Cell 2024; 37:9-53. [PMID: 37985645 PMCID: PMC10764451 DOI: 10.1007/s13577-023-01006-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2023] [Accepted: 10/26/2023] [Indexed: 11/22/2023]
Abstract
Multiple sclerosis (MS) is a chronic inflammatory, autoimmune, and neurodegenerative disease of the central nervous system (CNS), characterized by demyelination and axonal loss. It is induced by attack of autoreactive lymphocytes on the myelin sheath and endogenous remyelination failure, eventually leading to accumulation of neurological disability. Disease-modifying agents can successfully address inflammatory relapses, but have low efficacy in progressive forms of MS, and cannot stop the progressive neurodegenerative process. Thus, the stem cell replacement therapy approach, which aims to overcome CNS cell loss and remyelination failure, is considered a promising alternative treatment. Although the mechanisms behind the beneficial effects of stem cell transplantation are not yet fully understood, neurotrophic support, immunomodulation, and cell replacement appear to play an important role, leading to a multifaceted fight against the pathology of the disease. The present systematic review is focusing on the efficacy of stem cells to migrate at the lesion sites of the CNS and develop functional oligodendrocytes remyelinating axons. While most studies confirm the improvement of neurological deficits after the administration of different stem cell types, many critical issues need to be clarified before they can be efficiently introduced into clinical practice.
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Affiliation(s)
- Maria Veatriki Christodoulou
- Department of Physiology, Faculty of Medicine, School of Health Sciences, University of Ioannina, Ioannina, Greece
| | - Ermioni Petkou
- Department of Physiology, Faculty of Medicine, School of Health Sciences, University of Ioannina, Ioannina, Greece
| | - Natalia Atzemoglou
- Department of Physiology, Faculty of Medicine, School of Health Sciences, University of Ioannina, Ioannina, Greece
| | - Eleni Gkorla
- Department of Physiology, Faculty of Medicine, School of Health Sciences, University of Ioannina, Ioannina, Greece
| | - Aikaterini Karamitrou
- Department of Physiology, Faculty of Medicine, School of Health Sciences, University of Ioannina, Ioannina, Greece
| | - Yannis V Simos
- Department of Physiology, Faculty of Medicine, School of Health Sciences, University of Ioannina, Ioannina, Greece
| | - Stefanos Bellos
- Department of Physiology, Faculty of Medicine, School of Health Sciences, University of Ioannina, Ioannina, Greece
| | - Chryssa Bekiari
- Laboratory of Anatomy and Histology, School of Veterinary Medicine, Faculty of Health Sciences, Aristotle University of Thessaloniki, Thessaloniki, Greece
| | - Panos Kouklis
- Laboratory of Biology, Department of Medicine, University of Ioannina, Ioannina, Greece
| | | | - Patra Vezyraki
- Department of Physiology, Faculty of Medicine, School of Health Sciences, University of Ioannina, Ioannina, Greece
| | - Dimitrios Peschos
- Department of Physiology, Faculty of Medicine, School of Health Sciences, University of Ioannina, Ioannina, Greece
| | - Konstantinos I Tsamis
- Department of Physiology, Faculty of Medicine, School of Health Sciences, University of Ioannina, Ioannina, Greece.
- Department of Neurology, University Hospital of Ioannina, Ioannina, Greece.
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2
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Kurihara K, Sasaki M, Nagahama H, Obara H, Fukushi R, Hirota R, Yoshimoto M, Teramoto A, Kocsis JD, Yamashita T, Honmou O. Repeated intravenous infusion of mesenchymal stem cells enhances recovery of motor function in a rat model with chronic spinal cord injury. Brain Res 2023; 1817:148484. [PMID: 37442249 DOI: 10.1016/j.brainres.2023.148484] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2023] [Revised: 07/05/2023] [Accepted: 07/10/2023] [Indexed: 07/15/2023]
Abstract
Spinal cord injury (SCI) can cause paralysis with a high disease burden with limited treatment options. A single intravenous infusion of mesenchymal stem cells (MSCs) improves motor function in rat SCI models, possibly through the induction of axonal sprouting and remyelination. Repeated infusions (thrice at weekly intervals) of MSCs were administered to rats with chronic SCI to determine if multiple-dosing regimens enhance motor improvement. Chronic SCI rats were randomized and infused with vehicle (vehicle), single MSC injection at week 6 (MSC-1) or repeatedly injections of MSCs at 6, 7, and 8 weeks (MSC-3) after SCI induction. In addition, a single high dose of MSCs (HD-MSC) equivalent to thrice the single dose was infused at week 6. Locomotor function, light and electron microscopy, immunohistochemistry and ex vivo diffusion tensor imaging were performed. Repeated infusion of MSCs (MSC-3) provided the greatest functional recovery compared to single and single high-dose infusions. The density of remyelinated axons in the injured spinal cord was the greatest in the MSC-3 group, followed by the MSC-1, HD-MSC and vehicle groups. Increased sprouting of the corticospinal tract and serotonergic axon density was the greatest in the MSC-3 group, followed by MSC-1, HD-MSC, and vehicle groups. Repeated infusion of MSCs over three weeks resulted in greater functional improvement than single administration of MSCs, even when the number of infused cells was tripled. MSC-treated rats showed axonal sprouting and remyelination in the chronic phase of SCI.
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Affiliation(s)
- Kota Kurihara
- Department of Neural Regenerative Medicine, Research Institute for Frontier Medicine, Sapporo Medical University School of Medicine, Sapporo 060-8556, Japan; Department of Orthopaedic Surgery, Sapporo Medical University School of Medicine, Sapporo 060-8556, Japan
| | - Masanori Sasaki
- Department of Neural Regenerative Medicine, Research Institute for Frontier Medicine, Sapporo Medical University School of Medicine, Sapporo 060-8556, Japan; Department of Neurology, Yale University School of Medicine, New Haven, CT 06510, USA.
| | - Hiroshi Nagahama
- Department of Neural Regenerative Medicine, Research Institute for Frontier Medicine, Sapporo Medical University School of Medicine, Sapporo 060-8556, Japan; Division of Radioisotope Research, Biomedical Research, Education and Instrumentation Center, Sapporo Medical University School of Medicine, Sapporo, Hokkaido 060-8556, Japan
| | - Hisashi Obara
- Department of Neural Regenerative Medicine, Research Institute for Frontier Medicine, Sapporo Medical University School of Medicine, Sapporo 060-8556, Japan; Department of Orthopaedic Surgery, Sapporo Medical University School of Medicine, Sapporo 060-8556, Japan
| | - Ryunosuke Fukushi
- Department of Neural Regenerative Medicine, Research Institute for Frontier Medicine, Sapporo Medical University School of Medicine, Sapporo 060-8556, Japan; Department of Orthopaedic Surgery, Sapporo Medical University School of Medicine, Sapporo 060-8556, Japan
| | - Ryosuke Hirota
- Department of Neural Regenerative Medicine, Research Institute for Frontier Medicine, Sapporo Medical University School of Medicine, Sapporo 060-8556, Japan; Department of Orthopaedic Surgery, Sapporo Medical University School of Medicine, Sapporo 060-8556, Japan
| | - Mitsunori Yoshimoto
- Department of Orthopaedic Surgery, Sapporo Medical University School of Medicine, Sapporo 060-8556, Japan
| | - Atsushi Teramoto
- Department of Orthopaedic Surgery, Sapporo Medical University School of Medicine, Sapporo 060-8556, Japan
| | - Jeffery D Kocsis
- Department of Neurology, Yale University School of Medicine, New Haven, CT 06510, USA; Department of Neuroscience, Yale University School of Medicine, New Haven, CT 06510, USA; Center for Neuroscience and Regeneration Research, VA Connecticut Healthcare System, West Haven, CT 06516, USA
| | - Toshihiko Yamashita
- Department of Orthopaedic Surgery, Sapporo Medical University School of Medicine, Sapporo 060-8556, Japan
| | - Osamu Honmou
- Department of Neural Regenerative Medicine, Research Institute for Frontier Medicine, Sapporo Medical University School of Medicine, Sapporo 060-8556, Japan; Department of Neurology, Yale University School of Medicine, New Haven, CT 06510, USA
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3
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Hirota R, Sasaki M, Honmou O, Yamashita T. Mesenchymal Stem Cell Transplantation for Spinal Cord Injury: Current Status and Prospects. Spine Surg Relat Res 2023; 7:319-326. [PMID: 37636138 PMCID: PMC10447197 DOI: 10.22603/ssrr.2022-0234] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2022] [Accepted: 12/21/2022] [Indexed: 02/21/2023] Open
Abstract
Since the 1990s, our group has been conducting basic research on regenerative medicine using various cell types to treat several central nervous system diseases, including spinal cord injury (SCI). We have reported many positive effects of the intravenous administration of mesenchymal stem cells (MSCs) derived from the bone marrow. In the current study, MSCs were administered intravenously to a rat model of severe SCI (crush injury) during the acute to subacute stages-considerable motor function recovery was observed. Furthermore, MSC transplantation in a chronic-phase SCI model improved motor function. In this review, we discuss recent updates in basic research on the intravenous infusion of MSCs and prospects for SCI research.
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Affiliation(s)
- Ryosuke Hirota
- Department of Orthopaedic Surgery, Sapporo Medical University School of Medicine, Sapporo, Japan
- Department of Neural Regenerative Medicine, Research Institute for Frontier Medicine, Sapporo Medical University School of Medicine, Sapporo, Japan
| | - Masanori Sasaki
- Department of Neural Regenerative Medicine, Research Institute for Frontier Medicine, Sapporo Medical University School of Medicine, Sapporo, Japan
| | - Osamu Honmou
- Department of Neural Regenerative Medicine, Research Institute for Frontier Medicine, Sapporo Medical University School of Medicine, Sapporo, Japan
| | - Toshihiko Yamashita
- Department of Orthopaedic Surgery, Sapporo Medical University School of Medicine, Sapporo, Japan
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4
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Borda M, Aquino JB, Mazzone GL. Cell-based experimental strategies for myelin repair in multiple sclerosis. J Neurosci Res 2023; 101:86-111. [PMID: 36164729 DOI: 10.1002/jnr.25129] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2022] [Revised: 08/21/2022] [Accepted: 09/09/2022] [Indexed: 11/10/2022]
Abstract
Multiple sclerosis (MS) is an autoimmune demyelinating disorder of the central nervous system (CNS), diagnosed at a mean age of 32 years. CNS glia are crucial players in the onset of MS, primarily involving astrocytes and microglia that can cause/allow massive oligodendroglial cells death, without immune cell infiltration. Current therapeutic approaches are aimed at modulating inflammatory reactions during relapsing episodes, but lack the ability to induce very significant repair mechanisms. In this review article, different experimental approaches based mainly on the application of different cell types as therapeutic strategies applied for the induction of myelin repair and/or the amelioration of the disease are discussed. Regarding this issue, different cell sources were applied in various experimental models of MS, with different results, both in significant improvements in remyelination and the reduction of neuroinflammation and glial activation, or in neuroprotection. All cell types tested have advantages and disadvantages, which makes it difficult to choose a better option for therapeutic application in MS. New strategies combining cell-based treatment with other applications would result in further improvements and would be good candidates for MS cell therapy and myelin repair.
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Affiliation(s)
- Maximiliano Borda
- Instituto de Investigaciones en Medicina Traslacional (IIMT), CONICET-Universidad Austral, Derqui, Pilar, Buenos Aires, Argentina
| | - Jorge B Aquino
- Instituto de Investigaciones en Medicina Traslacional (IIMT), CONICET-Universidad Austral, Derqui, Pilar, Buenos Aires, Argentina.,CONICET, Comisión Nacional de Investigaciones Científicas y Técnicas
| | - Graciela L Mazzone
- Instituto de Investigaciones en Medicina Traslacional (IIMT), CONICET-Universidad Austral, Derqui, Pilar, Buenos Aires, Argentina.,CONICET, Comisión Nacional de Investigaciones Científicas y Técnicas
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5
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Nogueira AB, Hoshino HSR, Ortega NC, Dos Santos BGS, Teixeira MJ. Adult human neurogenesis: early studies clarify recent controversies and go further. Metab Brain Dis 2022; 37:153-172. [PMID: 34739659 DOI: 10.1007/s11011-021-00864-8] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/15/2021] [Accepted: 10/28/2021] [Indexed: 01/19/2023]
Abstract
Evidence on adult mammalian neurogenesis and scarce studies with human brains led to the idea that adult human neurogenesis occurs in the subgranular zone (SGZ) of the dentate gyrus and in the subventricular zone (SVZ). However, findings published from 2018 rekindled controversies on adult human SGZ neurogenesis. We systematically reviewed studies published during the first decade of characterization of adult human neurogenesis (1994-2004) - when the two-neurogenic-niche concept in humans was consolidated - and compared with further studies. The synthesis of both periods is that adult human neurogenesis occurs in an intensity ranging from practically zero to a level comparable to adult mammalian neurogenesis in general, which is the prevailing conclusion. Nonetheless, Bernier and colleagues showed in 2000 intriguing indications of adult human neurogenesis in a broad area including the limbic system. Likewise, we later showed evidence that limbic and hypothalamic structures surrounding the circumventricular organs form a continuous zone expressing neurogenesis markers encompassing the SGZ and SVZ. The conclusion is that publications from 2018 on adult human neurogenesis did not bring novel findings on location of neurogenic niches. Rather, we expect that the search of neurogenesis beyond the canonical adult mammalian neurogenic niches will confirm our indications that adult human neurogenesis is orchestrated in a broad brain area. We predict that this approach may, for example, clarify that human hippocampal neurogenesis occurs mostly in the CA1-subiculum zone and that the previously identified human rostral migratory stream arising from the SVZ is indeed the column of the fornix expressing neurogenesis markers.
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Affiliation(s)
- Adriano Barreto Nogueira
- Division of Neurosurgery (LIM 62), Hospital das Clínicas, Faculty of Medicine, University of São Paulo, São Paulo, Brazil.
- Neurosurgery Service, Hospital Regional do Vale do Paraíba, Taubaté, Brazil.
| | | | | | | | - Manoel Jacobsen Teixeira
- Division of Neurosurgery (LIM 62), Hospital das Clínicas, Faculty of Medicine, University of São Paulo, São Paulo, Brazil
- Department of Neurology, Faculty of Medicine, University of São Paulo, São Paulo, Brazil
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6
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Neurospheres: a potential in vitro model for the study of central nervous system disorders. Mol Biol Rep 2021; 48:3649-3663. [PMID: 33765252 DOI: 10.1007/s11033-021-06301-4] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2020] [Accepted: 03/18/2021] [Indexed: 02/08/2023]
Abstract
Neurogenesis was believed to end after the period of embryonic development. However, the possibility of obtaining an expressive number of cells with functional neuronal characteristics implied a great advance in experimental research. New techniques have emerged to demonstrate that the birth of new neurons continues to occur in the adult brain. Two main rich sources of these cells are the subventricular zone (SVZ) and the subgranular zone of the hippocampal dentate gyrus (SGZ) where adult neural stem cells (aNSCs) have the ability to proliferate and differentiate into mature cell lines. The cultivation of neurospheres is a method to isolate, maintain and expand neural stem cells (NSCs) and has been used extensively by several research groups to analyze the biological properties of NSCs and their potential use in injured brains from animal models. Throughout this review, we highlight the areas where this type of cell culture has been applied and the advantages and limitations of using this model in experimental studies for the neurological clinical scenario.
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7
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Lakshman N, Bourget C, Siu R, Bamm VV, Xu W, Harauz G, Morshead CM. Niche-dependent inhibition of neural stem cell proliferation and oligodendrogenesis is mediated by the presence of myelin basic protein. STEM CELLS (DAYTON, OHIO) 2021; 39:776-786. [PMID: 33529418 PMCID: PMC8248327 DOI: 10.1002/stem.3344] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/22/2020] [Accepted: 01/13/2021] [Indexed: 12/13/2022]
Abstract
Neural stem and progenitor cells (collectively termed neural precursor cells [NPCs]) are found along the ventricular neuraxis extending from the spinal cord to the forebrain in regionally distinct niches comprised of different cell types, architecture, and cell-cell interactions. An understanding of the factors that regulate NPC behavior is critical for developing therapeutics to repair the injured central nervous system. Herein, we demonstrate that myelin basic protein (MBP), the major cytoplasmic protein constituent of the myelin sheath in oligodendrocytes, can regulate NPC behavior. Under physiological conditions, NPCs are not in contact with intracellular MBP; however, upon injury, MBP is released into the neural parenchyma. We reveal that MBP presented in a spinal cord niche is inhibitory to NPC proliferation. This inhibitory effect is regionally distinct as spinal cord NPCs, but not forebrain-derived NPCs, are inhibited by MBP. We performed coculture and conditioned media experiments that reveal the stem cell niche is a key regulator of MBP's inhibitory actions on NPCs. The inhibition is mediated by a heat-labile protein released by spinal cord niche cells, but not forebrain niche cells. However, forebrain NPCs are also inhibited by the spinal cord derived factor as revealed following in vivo infusion of the spinal cord niche-derived conditioned media. Moreover, we show that MBP inhibits oligodendrogenesis from NPCs. Together, these findings highlight the role of MBP and the regionally distinct microenvironment in regulating NPC behavior which has important implications for stem cell-based regenerative strategies.
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Affiliation(s)
- Nishanth Lakshman
- Department of Surgery, Donnelly Centre, University of Toronto, Toronto, Ontario, Canada.,Institute of Medical Sciences, University of Toronto, Toronto, Ontario, Canada
| | - Clara Bourget
- Department of Surgery, Donnelly Centre, University of Toronto, Toronto, Ontario, Canada.,Institute of Medical Sciences, University of Toronto, Toronto, Ontario, Canada
| | - Ricky Siu
- Department of Surgery, Donnelly Centre, University of Toronto, Toronto, Ontario, Canada
| | - Vladimir V Bamm
- Department of Molecular and Cellular Biology, University of Guelph, Guelph, Ontario, Canada
| | - Wenjun Xu
- Department of Surgery, Donnelly Centre, University of Toronto, Toronto, Ontario, Canada
| | - George Harauz
- Department of Molecular and Cellular Biology, University of Guelph, Guelph, Ontario, Canada
| | - Cindi M Morshead
- Department of Surgery, Donnelly Centre, University of Toronto, Toronto, Ontario, Canada.,Institute of Medical Sciences, University of Toronto, Toronto, Ontario, Canada.,Institute of Biomaterials and Biomedical Engineering, University of Toronto, Toronto, Ontario, Canada
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8
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Chen CZ, Neumann B, Förster S, Franklin RJM. Schwann cell remyelination of the central nervous system: why does it happen and what are the benefits? Open Biol 2021; 11:200352. [PMID: 33497588 PMCID: PMC7881176 DOI: 10.1098/rsob.200352] [Citation(s) in RCA: 26] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022] Open
Abstract
Myelin sheaths, by supporting axonal integrity and allowing rapid saltatory impulse conduction, are of fundamental importance for neuronal function. In response to demyelinating injuries in the central nervous system (CNS), oligodendrocyte progenitor cells (OPCs) migrate to the lesion area, proliferate and differentiate into new oligodendrocytes that make new myelin sheaths. This process is termed remyelination. Under specific conditions, demyelinated axons in the CNS can also be remyelinated by Schwann cells (SCs), the myelinating cell of the peripheral nervous system. OPCs can be a major source of these CNS-resident SCs—a surprising finding given the distinct embryonic origins, and physiological compartmentalization of the peripheral and central nervous system. Although the mechanisms and cues governing OPC-to-SC differentiation remain largely undiscovered, it might nevertheless be an attractive target for promoting endogenous remyelination. This article will (i) review current knowledge on the origins of SCs in the CNS, with a particular focus on OPC to SC differentiation, (ii) discuss the necessary criteria for SC myelination in the CNS and (iii) highlight the potential of using SCs for myelin regeneration in the CNS.
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Affiliation(s)
- Civia Z Chen
- Wellcome-Medical Research Council Cambridge Stem Cell Institute, University of Cambridge, Cambridge Biomedical Campus, Cambridge CB2 0AH, UK
| | - Björn Neumann
- Wellcome-Medical Research Council Cambridge Stem Cell Institute, University of Cambridge, Cambridge Biomedical Campus, Cambridge CB2 0AH, UK
| | - Sarah Förster
- Wellcome-Medical Research Council Cambridge Stem Cell Institute, University of Cambridge, Cambridge Biomedical Campus, Cambridge CB2 0AH, UK
| | - Robin J M Franklin
- Wellcome-Medical Research Council Cambridge Stem Cell Institute, University of Cambridge, Cambridge Biomedical Campus, Cambridge CB2 0AH, UK
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9
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Huntemer-Silveira A, Patil N, Brickner MA, Parr AM. Strategies for Oligodendrocyte and Myelin Repair in Traumatic CNS Injury. Front Cell Neurosci 2021; 14:619707. [PMID: 33505250 PMCID: PMC7829188 DOI: 10.3389/fncel.2020.619707] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2020] [Accepted: 12/07/2020] [Indexed: 12/18/2022] Open
Abstract
A major consequence of traumatic brain and spinal cord injury is the loss of the myelin sheath, a cholesterol-rich layer of insulation that wraps around axons of the nervous system. In the central nervous system (CNS), myelin is produced and maintained by oligodendrocytes. Damage to the CNS may result in oligodendrocyte cell death and subsequent loss of myelin, which can have serious consequences for functional recovery. Demyelination impairs neuronal function by decelerating signal transmission along the axon and has been implicated in many neurodegenerative diseases. After a traumatic injury, mechanisms of endogenous remyelination in the CNS are limited and often fail, for reasons that remain poorly understood. One area of research focuses on enhancing this endogenous response. Existing techniques include the use of small molecules, RNA interference (RNAi), and monoclonal antibodies that target specific signaling components of myelination for recovery. Cell-based replacement strategies geared towards replenishing oligodendrocytes and their progenitors have been utilized by several groups in the last decade as well. In this review article, we discuss the effects of traumatic injury on oligodendrocytes in the CNS, the lack of endogenous remyelination, translational studies in rodent models promoting remyelination, and finally human clinical studies on remyelination in the CNS after injury.
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Affiliation(s)
| | - Nandadevi Patil
- Department of Neurosurgery, Stem Cell Institute, University of Minnesota, Minneapolis, MN, United States
| | - Megan A. Brickner
- Department of Neuroscience, University of Minnesota, Minneapolis, MN, United States
| | - Ann M. Parr
- Department of Neurosurgery, Stem Cell Institute, University of Minnesota, Minneapolis, MN, United States
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Becker K, Cana A, Baumgärtner W, Spitzbarth I. p75 Neurotrophin Receptor: A Double-Edged Sword in Pathology and Regeneration of the Central Nervous System. Vet Pathol 2018; 55:786-801. [PMID: 29940812 DOI: 10.1177/0300985818781930] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
Abstract
The low-affinity nerve growth factor receptor p75NTR is a major neurotrophin receptor involved in manifold and pleiotropic functions in the developing and adult central nervous system (CNS). Although known for decades, its entire functions are far from being fully elucidated. Depending on the complex interactions with other receptors and on the cellular context, p75NTR is capable of performing contradictory tasks such as mediating cell death as well as cell survival. In parallel, as a prototype marker for certain differentiation stages of Schwann cells and related CNS aldynoglial cells, p75NTR has recently gained increasing notice as a marker for cells with proposed regenerative potential in CNS diseases, such as demyelinating disease and traumatic CNS injury. Besides its pivotal role as a marker for transplantation candidate cells, recent studies in canine neuroinflammatory CNS conditions also highlight a spontaneous endogenous occurrence of p75NTR-positive glia, which potentially play a role in Schwann cell-mediated CNS remyelination. The aim of the present communication is to review the pleiotropic functions of p75NTR in the CNS with a special emphasis on its role as an immunohistochemical marker in neuropathology. Following a brief illustration of the expression of p75NTR in neurogenesis and in developed neuronal populations, the implications of p75NTR expression in astrocytes, oligodendrocytes, and microglia are addressed. A special focus is put on the role of p75NTR as a cell marker for specific differentiation stages of Schwann cells and a regeneration-promoting CNS population, collectively referred to as aldynoglia.
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Affiliation(s)
- Kathrin Becker
- 1 Department of Pathology, University of Veterinary Medicine Hannover, Hannover, Germany
| | - Armend Cana
- 1 Department of Pathology, University of Veterinary Medicine Hannover, Hannover, Germany.,2 Center for Systems Neuroscience, Hannover, Germany
| | - Wolfgang Baumgärtner
- 1 Department of Pathology, University of Veterinary Medicine Hannover, Hannover, Germany.,2 Center for Systems Neuroscience, Hannover, Germany
| | - Ingo Spitzbarth
- 1 Department of Pathology, University of Veterinary Medicine Hannover, Hannover, Germany.,2 Center for Systems Neuroscience, Hannover, Germany
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11
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Pu Y, Liu H, Xu H, Liu H, Cheng Y, Chen X, Xu W, Xu Y, Fan J. IL-1β promotes the migration of olfactory epithelium neural stem cells through activating matrix metalloproteinase expressions. Pathol Res Pract 2018; 214:1210-1217. [PMID: 29983220 DOI: 10.1016/j.prp.2018.05.027] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/28/2018] [Revised: 05/28/2018] [Accepted: 05/29/2018] [Indexed: 10/16/2022]
Abstract
BACKGROUND To investigate the effects of IL-1β on the migration of olfactory epithelium neural stem cells (OENSCs), and to assess the mechanisms. METHODS The effects of different concentrations of IL-1β on cell proliferation, apoptosis and migration were evaluated by cell counting assay, flow cytometry and transwell migration assay, respectively. Matrix metalloproteinase (MMP)-2 and MMP-9 expression in both protein and mRNA levels were detected. Small interfering RNA (siRNA) technique was employed to knockdown MMP-2 and MMP-9 expression. Additionally, c-Jun N-terminal kinase (JNK) and nuclear factor-κB (NF-κB) inhibitors were applied to assess the potential signaling pathways involved in the effects of IL-1β on cell migration. RESULTS IL-1β promoted cell migration of OENSCs in a concentration-dependent manner at the concentration range of 0-80 ng/ml, but did not affect cell proliferation and apoptosis. Mechanically, IL-1β promoted MMP-2 and MMP-9 expressions. Knockdown of MMP-2 or MMP-9 could significantly reduce IL-1β-induced cell migration. IL-1β activated JNK, NF-κB, Extracellular Signal-Regulated Kinase (ERK) and p-65 phosphorylation. Finally, we evidenced that inhibition of JNK or NF-κB significantly inhibited cell migration. CONCLUSION Our study demonstrated that IL-1β promoted the migration of OENSCs through activating MMP expression. Moreover, JNK and NF-κB signaling pathways were involved in the regulation. This study provides important experimental evidence for the application of OENSCs in the transplantation therapy.
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Affiliation(s)
- Yu Pu
- Department of Otolaryngology Head and Neck Surgery, Changzheng Hospital, Second Military Medical University, Shanghai, 200003, China
| | - Hongyi Liu
- Department of Otolaryngology Head and Neck Surgery, Changzheng Hospital, Second Military Medical University, Shanghai, 200003, China
| | - He Xu
- Department of Otolaryngology Head and Neck Surgery, Changzheng Hospital, Second Military Medical University, Shanghai, 200003, China
| | - Huanhai Liu
- Department of Otolaryngology Head and Neck Surgery, Changzheng Hospital, Second Military Medical University, Shanghai, 200003, China
| | - Yin Cheng
- Department of Otolaryngology Head and Neck Surgery, Changzheng Hospital, Second Military Medical University, Shanghai, 200003, China
| | - Xiaoping Chen
- Department of Otolaryngology Head and Neck Surgery, Gongli Hospital, Second Military Medical University, Shanghai, 200135, China
| | - Weihua Xu
- Department of Otolaryngology Head and Neck Surgery, Gongli Hospital, Second Military Medical University, Shanghai, 200135, China
| | - Yaping Xu
- Department of Otolaryngology Head and Neck Surgery, Changzheng Hospital, Second Military Medical University, Shanghai, 200003, China
| | - Jingping Fan
- Department of Otolaryngology Head and Neck Surgery, Changzheng Hospital, Second Military Medical University, Shanghai, 200003, China.
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12
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Katsel P, Fam P, Tan W, Khan S, Yang C, Jouroukhin Y, Rudchenko S, Pletnikov MV, Haroutunian V. Overexpression of Truncated Human DISC1 Induces Appearance of Hindbrain Oligodendroglia in the Forebrain During Development. Schizophr Bull 2018; 44:515-524. [PMID: 28981898 PMCID: PMC5890457 DOI: 10.1093/schbul/sbx106] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
Genetic, neuroimaging, and gene expression studies suggest a role for oligodendrocyte (OLG) dysfunction in schizophrenia (SZ). Disrupted-in-schizophrenia 1 (DISC1) is a risk gene for major psychiatric disorders, including SZ. Overexpression of mutant truncated (hDISC1), but not full-length sequence of human DISC1 in forebrain influenced OLG differentiation and proliferation of glial progenitors in the developing cerebral cortex concurrently with reduction of OLG progenitor markers in the hindbrain. We examined gene and protein expression of the molecular determinants of hindbrain OLG development and their interactions with DISC1 in mutant hDISC1 mice. We found ectopic upregulation of hindbrain glial progenitor markers (early growth response 2 [Egr2] and NK2 homeobox 2 [Nkx2-2]) in the forebrain of hDISC1 (E15) embryos. DISC1 and Nkx2-2 were coexpressed and interacted in progenitor cells. Overexpression of truncated hDISC1 impaired interactions between DISC1 and Nkx2-2, which was associated with increased differentiation of OLG and upregulation of hindbrain mature OLG markers (laminin alpha-1 [LAMA1] and myelin protein zero [MPZ]) suggesting a suppressive function of endogenous DISC1 in OLG specialization of hindbrain glial progenitors during embryogenesis. Consistent with findings in hDISC1 mice, several hindbrain OLG markers (PRX, LAMA1, and MPZ) were significantly upregulated in the superior temporal cortex of persons with SZ. These findings show a significant effect of truncated hDISC1 on glial identity cells along the rostrocaudal axis and their OLG specification. Appearance of hindbrain OLG lineage cells and their premature differentiation may affect cerebrocortical organization and contribute to the pathophysiology of SZ.
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Affiliation(s)
- Pavel Katsel
- Department of Psychiatry, The Icahn School of Medicine at Mount Sinai, New York, NY,To whom correspondence should be addressed; JJ Peters VA Medical Center, 151 Research Build, Room 5F-04C, 130 West Kingsbridge Road, Bronx, NY 10468; tel: 718-584-9000 ext. 6067, fax: 718-741-4746, e-mail:
| | - Peter Fam
- Department of Psychiatry, James J Peters VA Medical Center, Bronx, NY
| | - Weilun Tan
- Department of Psychiatry, The Icahn School of Medicine at Mount Sinai, New York, NY
| | - Sonia Khan
- Department of Psychiatry, The Icahn School of Medicine at Mount Sinai, New York, NY
| | - Chunxia Yang
- Department of Psychiatry, Johns Hopkins University School of Medicine, Baltimore, MD,Department of Neuroscience, Johns Hopkins University School of Medicine, Baltimore, MD,Department of Molecular and Comparative Pathobiology, Johns Hopkins University School of Medicine, Baltimore, MD
| | - Yan Jouroukhin
- Department of Psychiatry, Johns Hopkins University School of Medicine, Baltimore, MD,Department of Neuroscience, Johns Hopkins University School of Medicine, Baltimore, MD,Department of Molecular and Comparative Pathobiology, Johns Hopkins University School of Medicine, Baltimore, MD
| | | | - Mikhail V Pletnikov
- Department of Psychiatry, Johns Hopkins University School of Medicine, Baltimore, MD,Department of Neuroscience, Johns Hopkins University School of Medicine, Baltimore, MD,Department of Molecular and Comparative Pathobiology, Johns Hopkins University School of Medicine, Baltimore, MD
| | - Vahram Haroutunian
- Department of Psychiatry, The Icahn School of Medicine at Mount Sinai, New York, NY,Department of Neuroscience, The Icahn School of Medicine at Mount Sinai, New York, NY,Mental Illness Research, Education and Clinical Center (MIRECC), James J Peters VA Medical Center, Bronx, NY
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13
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Abstract
PURPOSE OF REVIEW Traumatic brain injury (TBI) is a global public health concern, with limited treatment options available. Despite improving survival rate after TBI, treatment is lacking for brain functional recovery and structural repair in clinic. Recent studies have suggested that the mature brain harbors neural stem cells which have regenerative capacity following brain insults. Much progress has been made in preclinical TBI model studies in understanding the behaviors, functions, and regulatory mechanisms of neural stem cells in the injured brain. Different strategies targeting these cell population have been assessed in TBI models. In parallel, cell transplantation strategy using a wide range of stem cells has been explored for TBI treatment in pre-clinical studies and some in clinical trials. This review summarized strategies which have been explored to enhance endogenous neural stem cell-mediated regeneration and recent development in cell transplantation studies for post-TBI brain repair. RECENT FINDINGS Thus far, neural regeneration through neural stem cells either by modulating endogenous neural stem cells or by stem cell transplantation has attracted much attention. It is highly speculated that targeting neural stem cells could be a potential strategy to repair and regenerate the injured brain. Neuroprotection and neuroregeneration are major aspects for TBI therapeutic development. With technique advancement, it is hoped that stem cell-based therapy targeting neuroregeneration will be able to translate to clinic in not so far future.
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Affiliation(s)
- Nicole M Weston
- Department of Anatomy and Neurobiology, School of Medicine, Medical College of Virginia Campus, Virginia Commonwealth University, P.O.Box 980709, Richmond, VA, 23298, USA
| | - Dong Sun
- Department of Anatomy and Neurobiology, School of Medicine, Medical College of Virginia Campus, Virginia Commonwealth University, P.O.Box 980709, Richmond, VA, 23298, USA.
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14
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Torrente Y, Belicchi M, Pisati F, Pagano SF, Fortunato F, Sironi M, D'angelo MG, Parati EA, Scarlato G, Bresolin N. Alternative Sources of Neurons and Glia from Somatic Stem Cells. Cell Transplant 2017. [DOI: 10.3727/096020198389753] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022] Open
Abstract
Stem cell populations have been shown to be extremely versatile: they can generate differentiated cells specific to the tissue in which they reside and descendents that are of different germ layer origin. This raises the possibility of obtaining neuronal cells from new biological source of the same adult human subjects. In this study, we found that epidermal growth factor (EGF) and basic fibroblast growth factor (bFGF) cooperated to induce the proliferation, self-renewal, and expansion of neural stem cell-like population isolated from several newborn and adult mouse tissues: muscle and hematopoietic tissues. This population, in both primary culture and secondary expanded clones, formed spheres of undifferentiated cells that were induced to differentiate into neurons, astrocytes, and oligodendrocytes. Brain engraftment of the somatic-derived neural stem cells generated neuronal phenotypes, demonstrating the great plasticity of these cells with potential clinical application.
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Affiliation(s)
- Yvan Torrente
- IRCCS Ospedale Maggiore Policlinico, Italy
- Centro Dino Ferrari, Institute of Clinical Neurology, Milan, Italy
| | | | | | - Stefano F. Pagano
- Laboratory of Neuropharmacology, National Neurological Institute “C. Besta,” Milan, Italy
| | | | | | | | - Eugenio A. Parati
- Laboratory of Neuropharmacology, National Neurological Institute “C. Besta,” Milan, Italy
| | | | - Nereo Bresolin
- IRCCS Ospedale Maggiore Policlinico, Italy
- IRCCS Eugenio Medea, Bosisio Parini, Italy
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15
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Xu W, Lakshman N, Morshead CM. Building a central nervous system: The neural stem cell lineage revealed. NEUROGENESIS 2017; 4:e1300037. [PMID: 28516107 PMCID: PMC5424705 DOI: 10.1080/23262133.2017.1300037] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/29/2016] [Revised: 02/20/2017] [Accepted: 02/21/2017] [Indexed: 01/25/2023]
Abstract
Neural stem cells (NSCs) are a multipotent, self-renewing source of undifferentiated cells in the periventricular region of the mammalian central nervous system (CNS). Since their original discovery 25 years ago, much has been learned about their development, persistence, localization, properties and potential. Herein we discuss the current state of knowledge pertaining to neural stem cells with a focus on the lineage relationship between two NSC populations along the neuraxis and their regionally distinct niches in the CNS.
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Affiliation(s)
- Wenjun Xu
- Department of Surgery, Division of Anatomy, Institute of Medical Science, University of Toronto, Toronto, ON, Canada
| | - Nishanth Lakshman
- Department of Surgery, Division of Anatomy, Institute of Medical Science, University of Toronto, Toronto, ON, Canada
| | - Cindi M Morshead
- Department of Surgery, Division of Anatomy, Institute of Medical Science, University of Toronto, Toronto, ON, Canada
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16
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Lindsay SL, Toft A, Griffin J, M M Emraja A, Barnett SC, Riddell JS. Human olfactory mesenchymal stromal cell transplants promote remyelination and earlier improvement in gait co-ordination after spinal cord injury. Glia 2017; 65:639-656. [PMID: 28144983 PMCID: PMC5324664 DOI: 10.1002/glia.23117] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/20/2016] [Revised: 12/15/2016] [Accepted: 12/15/2016] [Indexed: 12/16/2022]
Abstract
Autologous cell transplantation is a promising strategy for repair of the injured spinal cord. Here we have studied the repair potential of mesenchymal stromal cells isolated from the human olfactory mucosa after transplantation into a rodent model of incomplete spinal cord injury. Investigation of peripheral type remyelination at the injury site using immunocytochemistry for P0, showed a more extensive distribution in transplanted compared with control animals. In addition to the typical distribution in the dorsal columns (common to all animals), in transplanted animals only, P0 immunolabelling was consistently detected in white matter lateral and ventral to the injury site. Transplanted animals also showed reduced cavitation. Several functional outcome measures including end‐point electrophysiological testing of dorsal column conduction and weekly behavioural testing of BBB, weight bearing and pain, showed no difference between transplanted and control animals. However, gait analysis revealed an earlier recovery of co‐ordination between forelimb and hindlimb stepping in transplanted animals. This improvement in gait may be associated with the enhanced myelination in ventral and lateral white matter, where fibre tracts important for locomotion reside. Autologous transplantation of mesenchymal stromal cells from the olfactory mucosa may therefore be therapeutically beneficial in the treatment of spinal cord injury. GLIA 2017 GLIA 2017;65:639–656
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Affiliation(s)
- Susan L Lindsay
- Institute of Infection, College of Medical Veterinary and Life Sciences, Inflammation, and Immunity, University of Glasgow, Glasgow, G12 8TA, United Kingdom
| | - Andrew Toft
- Institute of Neuroscience and Psychology, College of Medical Veterinary and Life Sciences, West Medical Building, University of Glasgow, G12 8QQ, United Kingdom
| | - Jacob Griffin
- Institute of Neuroscience and Psychology, College of Medical Veterinary and Life Sciences, West Medical Building, University of Glasgow, G12 8QQ, United Kingdom
| | - Ahmed M M Emraja
- Institute of Neuroscience and Psychology, College of Medical Veterinary and Life Sciences, West Medical Building, University of Glasgow, G12 8QQ, United Kingdom
| | - Susan Carol Barnett
- Institute of Infection, College of Medical Veterinary and Life Sciences, Inflammation, and Immunity, University of Glasgow, Glasgow, G12 8TA, United Kingdom
| | - John S Riddell
- Institute of Neuroscience and Psychology, College of Medical Veterinary and Life Sciences, West Medical Building, University of Glasgow, G12 8QQ, United Kingdom
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17
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Bianco J, De Berdt P, Deumens R, des Rieux A. Taking a bite out of spinal cord injury: do dental stem cells have the teeth for it? Cell Mol Life Sci 2016; 73:1413-37. [PMID: 26768693 PMCID: PMC11108394 DOI: 10.1007/s00018-015-2126-5] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2015] [Revised: 12/16/2015] [Accepted: 12/22/2015] [Indexed: 12/15/2022]
Abstract
Dental stem cells are an emerging star on a stage that is already quite populated. Recently, there has been a lot of hype concerning these cells in dental therapies, especially in regenerative endodontics. It is fitting that most research is concentrated on dental regeneration, although other uses for these cells need to be explored in more detail. Being a true mesenchymal stem cell, their capacities could also prove beneficial in areas outside their natural environment. One such field is the central nervous system, and in particular, repairing the injured spinal cord. One of the most formidable challenges in regenerative medicine is to restore function to the injured spinal cord, and as yet, a cure for paralysis remains to be discovered. A variety of approaches have already been tested, with graft-based strategies utilising cells harbouring appropriate properties for neural regeneration showing encouraging results. Here we present a review focusing on properties of dental stem cells that endorse their use in regenerative medicine, with particular emphasis on repairing the damaged spinal cord.
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Affiliation(s)
- John Bianco
- Louvain Drug Research Institute, Advanced Drug Delivery and Biomaterials, Université catholique de Louvain, Avenue Mounier, 73, B1 73.12, 1200, Brussels, Belgium.
- Integrated Center for Cell Therapy and Regenerative Medicine, International Clinical Research Center (FNUSA-ICRC), St. Anne's University Hospital Brno, Pekařská 53, 656 91, Brno, Czech Republic.
| | - Pauline De Berdt
- Louvain Drug Research Institute, Advanced Drug Delivery and Biomaterials, Université catholique de Louvain, Avenue Mounier, 73, B1 73.12, 1200, Brussels, Belgium
| | - Ronald Deumens
- Institute of Neuroscience, Université catholique de Louvain, Avenue Hippocrate B1.54.10, 1200, Brussels, Belgium
| | - Anne des Rieux
- Louvain Drug Research Institute, Advanced Drug Delivery and Biomaterials, Université catholique de Louvain, Avenue Mounier, 73, B1 73.12, 1200, Brussels, Belgium
- Institute of Condensed Matter and Nanosciences, Université catholique de Louvain, 1348, Louvain-La-Neuve, Belgium
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18
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Ye JC, Qin Y, Wu YF, Wang P, Tang Y, Huang L, Ma MJ, Zeng YS, Shen HY. Using primate neural stem cells cultured in self-assembling peptide nanofiber scaffolds to repair injured spinal cords in rats. Spinal Cord 2016; 54:933-941. [PMID: 27001129 DOI: 10.1038/sc.2016.36] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2015] [Revised: 01/18/2016] [Accepted: 02/16/2016] [Indexed: 12/29/2022]
Abstract
STUDY DESIGN Transplanted primates' neural stem cells (NSCs) tissue engineering complex into spinal cord injury (SCI) model rats, analyze and evaluate the long-term effects of repairing. OBJECTIVES Primate NSCs were cultured in self-assembling peptide nanofiber scaffolds to repair SCI. SETTING Sun Yat-sen Memorial Hospital, Guangzhou, China. METHODS Primate NSCs were isolated and cultured in self-assembling peptide nanofiber scaffolds. T10 SCI model was established; the rats were randomly divided into four groups: NSC plus self-assembling peptide scaffold group; NSC group; self-assembling peptide scaffold group; and control group. Immunohistochemical staining and electronic microscope were used to investigate the growth and differentiation of transplanted NSCs. The motor function of the hind limbs of rats was evaluated (P<0.05 was considered as statistically significant). RESULTS NSCs and NSCs cultured in self-assembling peptide nanofiber scaffolds could be induced to differentiation into neurons, glial cells and oligodendrocytes in vitro. The primate NSC culture was established in self-assembling peptide scaffolds. No significant difference was seen in the differentiation rate between primate NSCs cultured in self-assembling peptide nanofiber scaffolds and primate NSCs cultured in regular medium. The motor function of the hind limbs in the NSC plus self-assembling peptide scaffold group was significantly better than that of the other three groups. In addition, the NSCs of the NSC group mainly differentiated into astrocytes. CONCLUSION Transplantation of primate NSCs cultured in self-assembling peptide scaffolds is efficient for repairing the injured spinal cord and for improving the motor function of spinal cord in rats. SPONSORSHIP The National Natural Science Foundation of China; Science and Technology Office of Guangdong Province.
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Affiliation(s)
- J-C Ye
- Department of Orthopedics, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou China
| | - Y Qin
- Department of Orthopedics, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou China.,Department of Orthopedics, Zhuhai People's Hospital, Zhuhai, China
| | - Y-F Wu
- Biotherapy Centre, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou, China
| | - P Wang
- Department of Orthopedics, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou China
| | - Y Tang
- Department of Orthopedics, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou China
| | - L Huang
- Department of Orthopedics, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou China
| | - M-J Ma
- Department of Orthopedics, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou China
| | - Y-S Zeng
- Department of Histology and Embryology, Zhongshan School of Medicine, Sun Yat-sen University, Guangzhou, China
| | - H-Y Shen
- Department of Orthopedics, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou China
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19
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Sun D. The potential of neural transplantation for brain repair and regeneration following traumatic brain injury. Neural Regen Res 2016; 11:18-22. [PMID: 26981070 PMCID: PMC4774215 DOI: 10.4103/1673-5374.169605] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023] Open
Abstract
Traumatic brain injury is a major health problem worldwide. Currently, there is no effective treatment to improve neural structural repair and functional recovery of patients in the clinic. Cell transplantation is a potential strategy to repair and regenerate the injured brain. This review article summarized recent development in cell transplantation studies for post-traumatic brain injury brain repair with varying types of cell sources. It also discussed the potential of neural transplantation to repair/promote recovery of the injured brain following traumatic brain injury.
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Affiliation(s)
- Dong Sun
- Department of Neurosurgery, School of Medicine, Virginia Commonwealth University, Richmond, VA, USA
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20
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Mortazavi MM, Jaber M, Adeeb N, Deep A, Hose N, Rezaei M, Fard SA, Kateb B, Yashar P, Liker MA, Tubbs RS. Engraftment of neural stem cells in the treatment of spinal cord injury. TRANSLATIONAL RESEARCH IN ANATOMY 2015. [DOI: 10.1016/j.tria.2015.10.002] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022] Open
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21
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Zhou YY, Hou GQ, He SW, Xiao Z, Xu HJ, Qiu YT, Jiang S, Zheng H, Li ZY. Psora-4, a Kv1.3 Blocker, Enhances Differentiation and Maturation in Neural Progenitor Cells. CNS Neurosci Ther 2015; 21:558-67. [PMID: 25976092 DOI: 10.1111/cns.12402] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2015] [Revised: 04/12/2015] [Accepted: 04/14/2015] [Indexed: 01/01/2023] Open
Abstract
AIM The self-repair ability of neural progenitor cells (NPCs) has been found to be activated and protected in several therapies helpful in multiple sclerosis (MS), an inflammatory demyelinating disease of the CNS. As a potential therapeutic target in MS, the role of the ion channel Kv1.3 in NPC self-repair has received limited attention. The aim of this study was to explore the effects of a selective Kv1.3 blocker on NPC neuronal differentiation and maturation. METHODS A small-molecule selective blocker for Kv1.3, Psora-4, was added to the differentiation medium of cultured mouse NPCs to assess its effect on NPC differentiation efficiency. Both a polypeptide Kv1.3 blocker and Kv1.3-specific RNA interference were used in parallel experiments. Further, the maturity of newborn neurons in the presence of Psora-4 was measured both by morphological analysis and by whole-cell patch clamping. RESULTS Psora-4 induced a significant increase in the percentage of neurons. Knockdown of Kv1.3 in NPCs also promoted neuronal differentiation. Both morphological and electrophysiological analyses suggested that NPC-derived neurons in the presence of Psora-4 were more mature. CONCLUSION Our studies reveal a crucial role for the ion channel Kv1.3 in the regulation of NPC differentiation and maturation, making Psora-4 a promising candidate molecule for MS treatment.
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Affiliation(s)
- Yu-Ye Zhou
- Key Laboratory of Regenerative Biology, South China Institute of Stem Cell and Regenerative Medicine, Guangzhou Institutes of Biomedicine and Health, Chinese Academy of Sciences, Guangzhou, Guangdong, China
| | - Guo-Qiang Hou
- Key Laboratory of Regenerative Biology, South China Institute of Stem Cell and Regenerative Medicine, Guangzhou Institutes of Biomedicine and Health, Chinese Academy of Sciences, Guangzhou, Guangdong, China
| | - Song-Wei He
- Key Laboratory of Regenerative Biology, South China Institute of Stem Cell and Regenerative Medicine, Guangzhou Institutes of Biomedicine and Health, Chinese Academy of Sciences, Guangzhou, Guangdong, China
| | - Zhuo Xiao
- Key Laboratory of Regenerative Biology, South China Institute of Stem Cell and Regenerative Medicine, Guangzhou Institutes of Biomedicine and Health, Chinese Academy of Sciences, Guangzhou, Guangdong, China
| | - Hui-Juan Xu
- Key Laboratory of Regenerative Biology, South China Institute of Stem Cell and Regenerative Medicine, Guangzhou Institutes of Biomedicine and Health, Chinese Academy of Sciences, Guangzhou, Guangdong, China
| | - Ya-Tao Qiu
- Institute of Chemical Biology, Guangzhou Institutes of Biomedicine and Health, Chinese Academy of Sciences, Guangzhou, Guangdong, China
| | - Sheng Jiang
- Institute of Chemical Biology, Guangzhou Institutes of Biomedicine and Health, Chinese Academy of Sciences, Guangzhou, Guangdong, China
| | - Hui Zheng
- Key Laboratory of Regenerative Biology, South China Institute of Stem Cell and Regenerative Medicine, Guangzhou Institutes of Biomedicine and Health, Chinese Academy of Sciences, Guangzhou, Guangdong, China
| | - Zhi-Yuan Li
- Key Laboratory of Regenerative Biology, South China Institute of Stem Cell and Regenerative Medicine, Guangzhou Institutes of Biomedicine and Health, Chinese Academy of Sciences, Guangzhou, Guangdong, China.,Department of Anatomy and Neurobiology, School of Basic Medical Sciences, Central South University, Changsha, Hunan, China
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22
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Nam H, Lee KH, Nam DH, Joo KM. Adult human neural stem cell therapeutics: Current developmental status and prospect. World J Stem Cells 2015; 7:126-136. [PMID: 25621112 PMCID: PMC4300923 DOI: 10.4252/wjsc.v7.i1.126] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/28/2014] [Revised: 09/01/2014] [Accepted: 10/16/2014] [Indexed: 02/06/2023] Open
Abstract
Over the past two decades, regenerative therapies using stem cell technologies have been developed for various neurological diseases. Although stem cell therapy is an attractive option to reverse neural tissue damage and to recover neurological deficits, it is still under development so as not to show significant treatment effects in clinical settings. In this review, we discuss the scientific and clinical basics of adult neural stem cells (aNSCs), and their current developmental status as cell therapeutics for neurological disease. Compared with other types of stem cells, aNSCs have clinical advantages, such as limited proliferation, inborn differentiation potential into functional neural cells, and no ethical issues. In spite of the merits of aNSCs, difficulties in the isolation from the normal brain, and in the in vitro expansion, have blocked preclinical and clinical study using aNSCs. However, several groups have recently developed novel techniques to isolate and expand aNSCs from normal adult brains, and showed successful applications of aNSCs to neurological diseases. With new technologies for aNSCs and their clinical strengths, previous hurdles in stem cell therapies for neurological diseases could be overcome, to realize clinically efficacious regenerative stem cell therapeutics.
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23
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Yılmaz T, Kaptanoğlu E. Current and future medical therapeutic strategies for the functional repair of spinal cord injury. World J Orthop 2015; 6:42-55. [PMID: 25621210 PMCID: PMC4303789 DOI: 10.5312/wjo.v6.i1.42] [Citation(s) in RCA: 39] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/24/2013] [Accepted: 04/29/2014] [Indexed: 02/06/2023] Open
Abstract
Spinal cord injury (SCI) leads to social and psychological problems in patients and requires costly treatment and care. In recent years, various pharmacological agents have been tested for acute SCI. Large scale, prospective, randomized, controlled clinical trials have failed to demonstrate marked neurological benefit in contrast to their success in the laboratory. Today, the most important problem is ineffectiveness of nonsurgical treatment choices in human SCI that showed neuroprotective effects in animal studies. Recently, attempted cellular therapy and transplantations are promising. A better understanding of the pathophysiology of SCI started in the early 1980s. Research had been looking at neuroprotection in the 1980s and the first half of 1990s and regeneration studies started in the second half of the 1990s. A number of studies on surgical timing suggest that early surgical intervention is safe and feasible, can improve clinical and neurological outcomes and reduce health care costs, and minimize the secondary damage caused by compression of the spinal cord after trauma. This article reviews current evidence for early surgical decompression and nonsurgical treatment options, including pharmacological and cellular therapy, as the treatment choices for SCI.
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24
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Abstract
Stem cell-based interventions aim to use special regenerative cells (stem cells) to facilitate neuronal function beyond the site of the injury. Many studies involving animal models of spinal cord injury (SCI) suggest that certain stem cell-based therapies may restore function after SCI. Currently, in case of spinal cord injuries, new discoveries with clinical implications have been continuously made in basic stem cell research, and stem cell-based approaches are advancing rapidly toward application in patients. There is a huge base of preclinical evidence in vitro and in animal models which suggests the safety and clinical efficacy of cellular therapies after SCI. Despite this, data from clinical studies is not very encouraging and at times confounding. Here, we have attempted to cover preclinical and clinical evidence base dealing with safety, feasibility and efficacy of cell based interventions after SCI. The limitations of preclinical data and the reasons underlying its failure to translate in a clinical setting are also discussed. Based on the evidence base, it is suggested that a multifactorial approach is required to address this situation. Need for standardized, stringently designed multi-centric clinical trials for obtaining validated proof of evidence is also highlighted.
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Affiliation(s)
- Harvinder Singh Chhabra
- Spine Service, Indian Spinal Injuries Centre, Vasant Kunj, New Delhi, India,Address for correspondence: Dr. Harvinder Singh Chhabra, Indian Spinal Injuries Centre, Sector C, Vasant Kunj, New Delhi - 110 070, India. E-mail:
| | - Kanchan Sarda
- Spine Service, Indian Spinal Injuries Centre, Vasant Kunj, New Delhi, India
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25
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Czepiel M, Boddeke E, Copray S. Human oligodendrocytes in remyelination research. Glia 2014; 63:513-30. [DOI: 10.1002/glia.22769] [Citation(s) in RCA: 32] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2014] [Accepted: 11/05/2014] [Indexed: 01/04/2023]
Affiliation(s)
- Marcin Czepiel
- Department of Neuroscience; University Medical Center Groningen; A.Deusinglaan 1, 9713AV Groningen The Netherlands
| | - Erik Boddeke
- Department of Neuroscience; University Medical Center Groningen; A.Deusinglaan 1, 9713AV Groningen The Netherlands
| | - Sjef Copray
- Department of Neuroscience; University Medical Center Groningen; A.Deusinglaan 1, 9713AV Groningen The Netherlands
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26
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Spitzbarth I, Cana A, Hahn K, Hansmann F, Baumgärtner W. Associated occurrence of p75 neurotrophin receptor expressing aldynoglia and microglia/macrophages in long term organotypic murine brain slice cultures. Brain Res 2014; 1595:29-42. [PMID: 25446435 DOI: 10.1016/j.brainres.2014.11.027] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2014] [Revised: 11/03/2014] [Accepted: 11/07/2014] [Indexed: 11/17/2022]
Abstract
Growth-promoting aldynoglia, characterized by the expression of the prototype immature Schwann cell marker p75 neurotrophin receptor (NTR) have been shown to occur in some demyelinating diseases. However, the mechanisms determining the emergence and fate of such cells are largely unknown. This study aimed at the identification of such cells and potential triggering factors using an in vitro slice culture approach. Organotypic cerebrum and brain stem slices of adult mice were cultivated for up to 18 days in vitro. Immunohistochemistry for the detection of p75(NTR), CD107b, periaxin, growth associated protein (GAP)-43, and glial fibrillary acidic protein (GFAP) was performed. The results for p75(NTR) were substantiated by the use of in situ hybridization. Cultivation was associated with a progressively increasing spontaneous occurrence of bi- to multipolar p75(NTR)-positive, but periaxin-negative glia, indicative of aldynoglial Schwann cell like cells. Similar cells stained intensely positive for GAP-43, a marker for non-myelinating Schwann cells. The number of p75(NTR) positive glia did not correlate with GFAP expression, but showed a strong correlation with a remarkable spontaneous response of CD107b positive phagocytic microglia/macrophages. Moreover, aldynoglial p75(NTR) immunoreactivity negatively correlated to neuronal p75(NTR) expression, which was lost during culturing. The present results demonstrate that the cultivation of organotypic murine brain slices is accompanied by a spontaneous response of both microglia/macrophages and p75(NTR) positive cells, suggestive of Schwann cell like aldynoglia. The findings highlights the role of microglia/macrophages, which seem to be an important triggering factor, facilitating the occurrence of this unique type of macroglia.
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Affiliation(s)
- I Spitzbarth
- Department of Pathology, University of Veterinary Medicine, Buenteweg 17, D-30559 Hannover, Germany; Center for Systems Neuroscience, Hannover, Germany.
| | - A Cana
- Department of Pathology, University of Veterinary Medicine, Buenteweg 17, D-30559 Hannover, Germany; Center for Systems Neuroscience, Hannover, Germany
| | - K Hahn
- Department of Pathology, University of Veterinary Medicine, Buenteweg 17, D-30559 Hannover, Germany; Center for Systems Neuroscience, Hannover, Germany
| | - F Hansmann
- Department of Pathology, University of Veterinary Medicine, Buenteweg 17, D-30559 Hannover, Germany; Center for Systems Neuroscience, Hannover, Germany
| | - W Baumgärtner
- Department of Pathology, University of Veterinary Medicine, Buenteweg 17, D-30559 Hannover, Germany; Center for Systems Neuroscience, Hannover, Germany
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Yuan N, Tian W, Sun L, Yuan R, Tao J, Chen D. Neural stem cell transplantation in a double-layer collagen membrane with unequal pore sizes for spinal cord injury repair. Neural Regen Res 2014; 9:1014-9. [PMID: 25206753 PMCID: PMC4146296 DOI: 10.4103/1673-5374.133160] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 04/11/2014] [Indexed: 11/04/2022] Open
Abstract
A novel double-layer collagen membrane with unequal pore sizes in each layer was designed and tested in this study. The inner, loose layer has about 100-μm-diameter pores, while the outer, compact layer has about 10-μm-diameter pores. In a rat model of incomplete spinal cord injury, a large number of neural stem cells were seeded into the loose layer, which was then adhered to the injured side, and the compact layer was placed against the lateral side. The results showed that the transplantation of neural stem cells in a double-layer collagen membrane with unequal pore sizes promoted the differentiation of neural stem cells, attenuated the pathological lesion, and significantly improved the motor function of the rats with incomplete spinal cord injuries. These experimental findings suggest that the transplantation of neural stem cells in a double-layer collagen membrane with unequal pore sizes is an effective therapeutic strategy to repair an injured spinal cord.
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Affiliation(s)
- Ning Yuan
- Department of Spine, Beijing Jishuitan Hospital, Beijing, China
| | - Wei Tian
- Department of Spine, Beijing Jishuitan Hospital, Beijing, China
| | - Lei Sun
- Beijing Institute of Orthopedics and Traumatology, Beijing, China
| | - Runying Yuan
- Beijing Institute of Orthopedics and Traumatology, Beijing, China
| | - Jianfeng Tao
- Beijing Institute of Orthopedics and Traumatology, Beijing, China
| | - Dafu Chen
- Beijing Institute of Orthopedics and Traumatology, Beijing, China
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Li Z, Zhang Z, Zhao L, Li H, Wang S, Shen Y. Bone marrow mesenchymal stem cells with Nogo-66 receptor gene silencing for repair of spinal cord injury. Neural Regen Res 2014; 9:806-14. [PMID: 25206893 PMCID: PMC4146260 DOI: 10.4103/1673-5374.131595] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 02/08/2014] [Indexed: 12/13/2022] Open
Abstract
We hypothesized that RNA interference to silence Nogo-66 receptor gene expression in bone marrow mesenchymal stem cells before transplantation might further improve neurological function in rats with spinal cord transection injury. After 2 weeks, the number of neurons and BrdU-positive cells in the Nogo-66 receptor gene silencing group was higher than in the bone marrow mesenchymal stem cell group, and significantly greater compared with the model group. After 4 weeks, behavioral performance was significantly enhanced in the model group. After 8 weeks, the number of horseradish peroxidase-labeled nerve fibers was higher in the Nogo-66 receptor gene silencing group than in the bone marrow mesenchymal stem cell group, and significantly higher than in the model group. The newly formed nerve fibers and myelinated nerve fibers were detectable in the central transverse plane section in the bone marrow mesenchymal stem cell group and in the Nogo-66 receptor gene silencing group.
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Affiliation(s)
- Zhiyuan Li
- Department of Joint Orthopedics, Hebei Provincial Xingtai People's Hospital, Xingtai, Hebei Province, China
| | - Zhanxiu Zhang
- Department of Joint Orthopedics, Hebei Provincial Xingtai People's Hospital, Xingtai, Hebei Province, China
| | - Lili Zhao
- Department of Joint Orthopedics, Hebei Provincial Xingtai People's Hospital, Xingtai, Hebei Province, China
| | - Hui Li
- Department of Joint Orthopedics, Hebei Provincial Xingtai People's Hospital, Xingtai, Hebei Province, China
| | - Suxia Wang
- Department of Joint Orthopedics, Hebei Provincial Xingtai People's Hospital, Xingtai, Hebei Province, China
| | - Yong Shen
- Department of Spinal Orthopedics, Third Hospital of Hebei Medical University, Shijiazhuang, Hebei Province, China
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Liu Y, Zhou Y, Zhang C, Zhang F, Hou S, Zhong H, Huang H. Optimal time for subarachnoid transplantation of neural progenitor cells in the treatment of contusive spinal cord injury. Neural Regen Res 2014; 8:389-96. [PMID: 25206679 PMCID: PMC4146137 DOI: 10.3969/j.issn.1673-5374.2013.05.001] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2012] [Accepted: 11/20/2012] [Indexed: 11/18/2022] Open
Abstract
This study aimed to identify the optimal neural progenitor cell transplantation time for spinal cord injury in rats via the subarachnoid space. Cultured neural progenitor cells from 14-day embryonic rats, constitutively expressing enhanced green fluorescence protein, or media alone, were injected into the subarachnoid space of adult rats at 1 hour (acute stage), 7 days (subacute stage) and 28 days (chronic stage) after contusive spinal cord injury. Results showed that grafted neural progenitor cells migrated and aggregated around the blood vessels of the injured region, and infiltrated the spinal cord parenchyma along the tissue spaces in the acute stage transplantation group. However, this was not observed in subacute and chronic stage transplantation groups. O4- and glial fibrillary acidic protein-positive cells, representing oligodendrocytes and astrocytes respectively, were detected in the core of the grafted cluster attached to the cauda equina pia surface in the chronic stage transplantation group 8 weeks after transplantation. Both acute and subacute stage transplantation groups were negative for O4 and glial fibrillary acidic protein cells. Basso, Beattie and Bresnahan scale score comparisons indicated that rat hind limb locomotor activity showed better recovery after acute stage transplantation than after subacute and chronic transplantation. Our experimental findings suggest that the subarachnoid route could be useful for transplantation of neural progenitor cells at the acute stage of spinal cord injury. Although grafted cells survived only for a short time and did not differentiate into astrocytes or neurons, they were able to reach the parenchyma of the injured spinal cord and improve neurological function in rats. Transplantation efficacy was enhanced at the acute stage in comparison with subacute and chronic stages.
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Affiliation(s)
- Yan Liu
- Orthopedic Institute, the First Affiliated Hospital of the General Hospital of PLA, Beijing 100048, China
| | - Ying Zhou
- Orthopedic Institute, the First Affiliated Hospital of the General Hospital of PLA, Beijing 100048, China
| | - Chunli Zhang
- Orthopedic Institute, the First Affiliated Hospital of the General Hospital of PLA, Beijing 100048, China
| | - Feng Zhang
- Beijing Hongtianji Neuroscience Academy, Beijing 100144, China
| | - Shuxun Hou
- Orthopedic Institute, the First Affiliated Hospital of the General Hospital of PLA, Beijing 100048, China
| | - Hongbin Zhong
- Orthopedic Institute, the First Affiliated Hospital of the General Hospital of PLA, Beijing 100048, China
| | - Hongyun Huang
- Beijing Hongtianji Neuroscience Academy, Beijing 100144, China
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Mortazavi MM, Harmon OA, Adeeb N, Deep A, Tubbs RS. Treatment of spinal cord injury: a review of engineering using neural and mesenchymal stem cells. Clin Anat 2014; 28:37-44. [PMID: 25156268 DOI: 10.1002/ca.22443] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2014] [Accepted: 07/02/2014] [Indexed: 12/16/2022]
Abstract
Over time, various treatment modalities for spinal cord injury have been trialed, including pharmacological and nonpharmacological methods. Among these, replacement of the injured neural and paraneural tissues via cellular transplantation of neural and mesenchymal stem cells has been the most attractive. Extensive experimental studies have been done to identify the safety and effectiveness of this transplantation in animal and human models. Herein, we review the literature for studies conducted, with a focus on the human-related studies, recruitment, isolation, and transplantation, of these multipotent stem cells, and associated outcomes.
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Affiliation(s)
- Martin M Mortazavi
- Department of Neurosurgery, University of Washington, Seattle, Washington
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31
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Vishwakarma SK, Bardia A, Tiwari SK, Paspala SA, Khan AA. Current concept in neural regeneration research: NSCs isolation, characterization and transplantation in various neurodegenerative diseases and stroke: A review. J Adv Res 2014; 5:277-94. [PMID: 25685495 PMCID: PMC4294738 DOI: 10.1016/j.jare.2013.04.005] [Citation(s) in RCA: 57] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2012] [Revised: 04/10/2013] [Accepted: 04/28/2013] [Indexed: 12/14/2022] Open
Abstract
Since last few years, an impressive amount of data has been generated regarding the basic in vitro and in vivo biology of neural stem cells (NSCs) and there is much far hope for the success in cell replacement therapies for several human neurodegenerative diseases and stroke. The discovery of adult neurogenesis (the endogenous production of new neurons) in the mammalian brain more than 40 years ago has resulted in a wealth of knowledge about stem cells biology in neuroscience research. Various studies have done in search of a suitable source for NSCs which could be used in animal models to understand the basic and transplantation biology before treating to human. The difficulties in isolating pure population of NSCs limit the study of neural stem behavior and factors that regulate them. Several studies on human fetal brain and spinal cord derived NSCs in animal models have shown some interesting results for cell replacement therapies in many neurodegenerative diseases and stroke models. Also the methods and conditions used for in vitro culture of these cells provide an important base for their applicability and specificity in a definite target of the disease. Various important developments and modifications have been made in stem cells research which is needed to be more specified and enrolment in clinical studies using advanced approaches. This review explains about the current perspectives and suitable sources for NSCs isolation, characterization, in vitro proliferation and their use in cell replacement therapies for the treatment of various neurodegenerative diseases and strokes.
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Affiliation(s)
- Sandeep K. Vishwakarma
- Centre for Liver Research and Diagnostics, Deccan College of Medical Sciences, Kanchanbagh, Hyderabad, 500 058 Andhra Pradesh, India
- Paspala Advanced Neural (PAN) Research Foundation, Narayanguda, Hyderabad, 500 029 Andhra Pradesh, India
| | - Avinash Bardia
- Centre for Liver Research and Diagnostics, Deccan College of Medical Sciences, Kanchanbagh, Hyderabad, 500 058 Andhra Pradesh, India
| | - Santosh K. Tiwari
- Centre for Liver Research and Diagnostics, Deccan College of Medical Sciences, Kanchanbagh, Hyderabad, 500 058 Andhra Pradesh, India
| | - Syed A.B. Paspala
- Centre for Liver Research and Diagnostics, Deccan College of Medical Sciences, Kanchanbagh, Hyderabad, 500 058 Andhra Pradesh, India
- Paspala Advanced Neural (PAN) Research Foundation, Narayanguda, Hyderabad, 500 029 Andhra Pradesh, India
| | - Aleem A. Khan
- Centre for Liver Research and Diagnostics, Deccan College of Medical Sciences, Kanchanbagh, Hyderabad, 500 058 Andhra Pradesh, India
- Paspala Advanced Neural (PAN) Research Foundation, Narayanguda, Hyderabad, 500 029 Andhra Pradesh, India
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Cui B, Li E, Yang B, Wang B. Human umbilical cord blood-derived mesenchymal stem cell transplantation for the treatment of spinal cord injury. Exp Ther Med 2014; 7:1233-1236. [PMID: 24940417 PMCID: PMC3991533 DOI: 10.3892/etm.2014.1608] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2013] [Accepted: 02/04/2014] [Indexed: 12/15/2022] Open
Abstract
The aim of the present study was to investigate the effects of human umbilical cord blood-derived mesenchymal stem cell (HUCB-MSC) transplantation on the functional restoration of spinal cord injury (SCI). A total of 46 adult Wistar rats were randomly divided into three groups: Injury (n=15), control (n=15) and transplantation (n=16). A SCI model was established using the modified Allen’s method (vulnerating energy, 25 g/cm). The rats in the control and transplantation groups were injected at the site of the injury with physiological saline and HUCB-MSC suspension, respectively. At week one, two and four following treatment, the behavior of the rats was evaluated using the Basso, Beattie, Bresnahan locomotor rating scale. In addition, immunohistochemistry (IHC) was performed on samples from the rats that had been sacrificed four weeks subsequent to the treatment. Recovery of the spinal cord nerve function was identified to be significantly different at week two and four following treatment (P<0.05), and IHC identified that at week four following treatment novel nerve cells were being produced. Thus, transplantation of HUCB-MSCs promoted the recovery of the damaged function of spinal cord nerves in rats with SCI.
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Affiliation(s)
- Bingzhou Cui
- Department of Neurosurgery, Zhengzhou People's Hospital, Zhengzhou, Henan 450003, P.R. China
| | - En Li
- Department of Neurosurgery, Zhengzhou People's Hospital, Zhengzhou, Henan 450003, P.R. China
| | - Bo Yang
- Department of Neurosurgery, The First Affiliated Hospital, Zhengzhou University, Zhengzhou, Henan 450003, P.R. China
| | - Bo Wang
- Department of Neurosurgery, Zhengzhou People's Hospital, Zhengzhou, Henan 450003, P.R. China
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33
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Xapelli S, Agasse F, Grade S, Bernardino L, Ribeiro FF, Schitine CS, Heimann AS, Ferro ES, Sebastião AM, De Melo Reis RA, Malva JO. Modulation of subventricular zone oligodendrogenesis: a role for hemopressin? Front Cell Neurosci 2014; 8:59. [PMID: 24578683 PMCID: PMC3936357 DOI: 10.3389/fncel.2014.00059] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/15/2013] [Accepted: 02/07/2014] [Indexed: 11/13/2022] Open
Abstract
Neural stem cells (NSCs) from the subventricular zone (SVZ) have been indicated as a source of new oligodendrocytes to use in regenerative medicine for myelin pathologies. Indeed, NSCs are multipotent cells that can self-renew and differentiate into all neural cell types of the central nervous system. In normal conditions, SVZ cells are poorly oligodendrogenic, nevertheless their oligodendrogenic potential is boosted following demyelination. Importantly, progressive restriction into the oligodendrocyte fate is specified by extrinsic and intrinsic factors, endocannabinoids being one of these factors. Although a role for endocannabinoids in oligodendrogenesis has already been foreseen, selective agonists and antagonists of cannabinoids receptors produce severe adverse side effects. Herein, we show that hemopressin (Hp), a modulator of CB1 receptors, increased oligodendroglial differentiation in SVZ neural stem/progenitor cell cultures derived from neonatal mice. The original results presented in this work suggest that Hp and derivates may be of potential interest for the development of future strategies to treat demyelinating diseases.
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Affiliation(s)
- Sara Xapelli
- Center for Neuroscience and Cell Biology of Coimbra, University of Coimbra Coimbra, Portugal ; Institute of Pharmacology and Neurosciences, Faculty of Medicine, University of Lisbon Lisboa, Portugal ; Unit of Neurosciences, Institute of Molecular Medicine, University of Lisbon Lisboa, Portugal
| | - Fabienne Agasse
- Center for Neuroscience and Cell Biology of Coimbra, University of Coimbra Coimbra, Portugal
| | - Sofia Grade
- Center for Neuroscience and Cell Biology of Coimbra, University of Coimbra Coimbra, Portugal ; Institute for Stem Cell Research, Helmholtz Centre Munich, German Research Centre for Environmental Health Neuherberg, Germany ; Department of Physiological Genomics, Faculty of Medicine, Ludwig-Maximilians University of Munich Munich, Germany
| | - Liliana Bernardino
- Center for Neuroscience and Cell Biology of Coimbra, University of Coimbra Coimbra, Portugal ; Health Sciences Research Center, University of Beira Interior Covilhã, Portugal
| | - Filipa F Ribeiro
- Institute of Pharmacology and Neurosciences, Faculty of Medicine, University of Lisbon Lisboa, Portugal ; Unit of Neurosciences, Institute of Molecular Medicine, University of Lisbon Lisboa, Portugal
| | - Clarissa S Schitine
- Neurochemistry Laboratory, Biophysics Institute Carlos Chagas Filho, Federal University of Rio de Janeiro Rio de Janeiro, Brazil
| | | | - Emer S Ferro
- Departamento de Biologia Celular e do Desenvolvimento, Instituto de Ciências Biomédicas São Paulo, Brazil
| | - Ana M Sebastião
- Institute of Pharmacology and Neurosciences, Faculty of Medicine, University of Lisbon Lisboa, Portugal ; Unit of Neurosciences, Institute of Molecular Medicine, University of Lisbon Lisboa, Portugal
| | - Ricardo A De Melo Reis
- Neurochemistry Laboratory, Biophysics Institute Carlos Chagas Filho, Federal University of Rio de Janeiro Rio de Janeiro, Brazil
| | - João O Malva
- Center for Neuroscience and Cell Biology of Coimbra, University of Coimbra Coimbra, Portugal ; Center of Investigation in Environment, Genetics and Oncobiology, Institute for Biomedical Imaging and Life Sciences, Faculty of Medicine, University of Coimbra Coimbra, Portugal
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Bone morphogenetic proteins prevent bone marrow stromal cell-mediated oligodendroglial differentiation of transplanted adult neural progenitor cells in the injured spinal cord. Stem Cell Res 2013; 11:758-71. [DOI: 10.1016/j.scr.2013.05.003] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/22/2012] [Revised: 05/02/2013] [Accepted: 05/08/2013] [Indexed: 01/01/2023] Open
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Expansion of multipotent stem cells from the adult human brain. PLoS One 2013; 8:e71334. [PMID: 23967194 PMCID: PMC3743777 DOI: 10.1371/journal.pone.0071334] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2012] [Accepted: 06/30/2013] [Indexed: 12/22/2022] Open
Abstract
The discovery of stem cells in the adult human brain has revealed new possible scenarios for treatment of the sick or injured brain. Both clinical use of and preclinical research on human adult neural stem cells have, however, been seriously hampered by the fact that it has been impossible to passage these cells more than a very few times and with little expansion of cell numbers. Having explored a number of alternative culturing conditions we here present an efficient method for the establishment and propagation of human brain stem cells from whatever brain tissue samples we have tried. We describe virtually unlimited expansion of an authentic stem cell phenotype. Pluripotency proteins Sox2 and Oct4 are expressed without artificial induction. For the first time multipotency of adult human brain-derived stem cells is demonstrated beyond tissue boundaries. We characterize these cells in detail in vitro including microarray and proteomic approaches. Whilst clarification of these cells' behavior is ongoing, results so far portend well for the future repair of tissues by transplantation of an adult patient's own-derived stem cells.
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Pang CJ, Tong L, Ji LL, Wang ZY, Zhang X, Gao H, Jia H, Zhang LX, Tong XJ. Synergistic effects of ultrashort wave and bone marrow stromal cells on nerve regeneration with acellular nerve allografts. Synapse 2013; 67:637-47. [PMID: 23554017 DOI: 10.1002/syn.21669] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2012] [Revised: 01/07/2013] [Accepted: 03/22/2013] [Indexed: 12/13/2022]
Abstract
Acellular nerve allografts (ANA) possess bioactivity and neurite promoting factors in nerve tissue engineering. Previously we reported that low dose ultrashort wave (USW) radiation could enhance the rate and quality of peripheral nerve regeneration with ANA repairing sciatic nerve defects. Meanwhile, ANA implanted with bone marrow stromal cells (BMSCs) exhibited a similar result. Thus, it is interesting to know whether it might yield a synergistic effect when USW radiation is combined with BMSCs-laden ANA. Here we investigated the effectiveness of ANA seeded with BMSCs, combined with USW therapy on repairing peripheral nerve injuries. Adult male Wistar rats were randomly divided into four groups: Dulbecco's modified Eagle's medium (DMEM) control group, BMSCs-laden group, ultrashort wave (USW) group and BMSC + USW group. The regenerated nerves were assayed morphologically and functionally, and growth-promoting factors in the regenerated tissues following USW administration or BMSCs integration were also detected. The results indicated that the combination therapy caused much better beneficial effects evidenced by increased myelinated nerve fiber number, myelin sheath thickness, axon diameter, sciatic function index, nerve conduction velocity, and restoration rate of tibialis anterior wet weight. Moreover, the mRNA levels of brain-derived neurotrophic factor (BDNF) and vascular endothelial growth factor (VEGF) in the spinal cord and muscles were elevated significantly. In conclusion, we found a synergistic effect of USW radiation and BMSCs treatment on peripheral nerve regeneration, which may help establish novel strategies for repairing peripheral nerve defects.
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Affiliation(s)
- Chao-Jian Pang
- Department of Anatomy, College of Basic Medical Sciences, China Medical University, Shenyang, China
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Grade S, Bernardino L, Malva JO. Oligodendrogenesis from neural stem cells: perspectives for remyelinating strategies. Int J Dev Neurosci 2013; 31:692-700. [PMID: 23340483 DOI: 10.1016/j.ijdevneu.2013.01.004] [Citation(s) in RCA: 39] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2012] [Revised: 01/04/2013] [Accepted: 01/07/2013] [Indexed: 01/19/2023] Open
Abstract
Mobilization of remyelinating cells spontaneously occurs in the adult brain. These cellular resources are specially active after demyelinating episodes in early phases of multiple sclerosis (MS). Indeed, oligodendrocyte precursor cells (OPCs) actively proliferate, migrate to and repopulate the lesioned areas. Ultimately, efficient remyelination is accomplished when new oligodendrocytes reinvest nude neuronal axons, restoring the normal properties of impulse conduction. As the disease progresses this fundamental process fails. Multiple causes seem to contribute to such transient decline, including the failure of OPCs to differentiate and enwrap the vulnerable neuronal axons. Regenerative medicine for MS has been mainly centered on the recruitment of endogenous self-repair mechanisms, or on transplantation approaches. The latter commonly involves grafting of neural precursor cells (NPCs) or neural stem cells (NSCs), with myelinogenic potential, in the injured areas. Both strategies require further understanding of the biology of oligodendrocyte differentiation and remyelination. Indeed, the success of transplantation largely depends on the pre-commitment of transplanted NPCs or NSCs into oligodendroglial cell type, while the endogenous differentiation of OPCs needs to be boosted in chronic stages of the disease. Thus, much effort has been focused on finding molecular targets that drive oligodendrocytes commitment and development. The present review explores several aspects of remyelination that must be considered in the design of a cell-based therapy for MS, and explores more deeply the challenge of fostering oligodendrogenesis. In this regard, we discuss herein a tool developed in our research group useful to search novel oligodendrogenic factors and to study oligodendrocyte differentiation in a time- and cost-saving manner.
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Affiliation(s)
- Sofia Grade
- Center for Neuroscience and Cell Biology, University of Coimbra, 3004-517 Coimbra, Portugal.
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Raheja A, Suri V, Suri A, Sarkar C, Srivastava A, Mohanty S, Jain KG, Sharma MC, Mallick HN, Yadav PK, Kalaivani M, Pandey RM. Dose-dependent facilitation of peripheral nerve regeneration by bone marrow-derived mononuclear cells: a randomized controlled study: laboratory investigation. J Neurosurg 2012; 117:1170-81. [PMID: 23039144 DOI: 10.3171/2012.8.jns111446] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
OBJECT Bone marrow-derived stem cells enhance the rate of regeneration of neuronal cells leading to clinical improvement in nerve injury, spinal cord injury, and brain infarction. Recent experiments in the local application of bone marrow-derived mononuclear cells (BM-MNCs) in models of sciatic nerve transection in rats have suggested their beneficial role in nerve regeneration, although the effects of variable doses of stem cells on peripheral nerve regeneration have never been specifically evaluated in the literature. In this paper, the authors evaluated the dose-dependent role of BM-MNCs in peripheral nerve regeneration in a model of sciatic nerve transection in rats. METHODS The right sciatic nerve of 60 adult female Wistar rats (randomized into 2 test groups and 1 control group, 20 rats in each group) underwent transection under an operating microscope. The cut ends of the nerve were approximated using 2 epineural microsutures. The gap was filled with low-dose (5 million BM-MNCs/100 μl phosphate-buffered saline [PBS]) rat BM-MNCs in one group, high-dose (10 million BM-MNCs/100 μl PBS) rat BM-MNCs in another group, and only PBS in the control group, and the approximated nerve ends were sealed using fibrin glue. Histological assessment was performed after 30 days by using semiquantitative and morphometric analyses and was done to assess axonal regeneration, percentage of myelinated fibers, axonal diameter, fiber diameter, and myelin thickness at distal-most sites (10 mm from site of repair), intermediate distal sites (5 mm distal to the repair site), and site of repair. RESULTS The recovery of nerve cell architecture after nerve anastomosis was far better in the high-dose BM-MNC group than in the low-dose BM-MNC and control groups, and it was most evident (p < 0.02 in the majority of the parameters [3 of 4]) at the distal-most site. Overall, the improvement in myelin thickness was most significant with incremental dosage of BM-MNCs, and was evident at the repair, intermediate distal, and distal-most sites (p = 0.001). CONCLUSIONS This study emphasizes the role of BM-MNCs, which can be isolated easily from bone marrow aspirates, in peripheral nerve injury and highlights their dose-dependent facilitation of nerve regeneration.
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Affiliation(s)
- Amol Raheja
- Department of Neurosurgery and Gamma Knife, All India Institute of Medical Sciences, New Delhi, India
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Ryu HH, Kang BJ, Park SS, Kim Y, Sung GJ, Woo HM, Kim WH, Kweon OK. Comparison of mesenchymal stem cells derived from fat, bone marrow, Wharton's jelly, and umbilical cord blood for treating spinal cord injuries in dogs. J Vet Med Sci 2012; 74:1617-30. [PMID: 22878503 DOI: 10.1292/jvms.12-0065] [Citation(s) in RCA: 92] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
Abstract
Previous animal studies have shown that transplantation of mesenchymal stem cells (MSCs) into spinal cord lesions enhances axonal regeneration and promotes functional recovery. We isolated the MSCs derived from fat, bone marrow, Wharton's jelly and umbilical cord blood (UCB) positive for MSC markers and negative for hematopoietic cell markers. Their effects on the regeneration of injured canine spinal cords were compared. Spinal cord injury was induced by balloon catheter compression. Dogs with injured spinal cords were treated with only matrigel or matrigel mixed with each type of MSCs. Olby and modified Tarlov scores, immunohistochemistry, ELISA and Western blot analysis were used to evaluate the therapeutic effects. The different MSC groups showed significant improvements in locomotion at 8 weeks after transplantation (P<0.05). This recovery was accompanied by increased numbers of surviving neuron and neurofilament-positive fibers in the lesion site. Compared to the control, the lesion sizes were smaller, and fewer microglia and reactive astrocytes were found in the spinal cord epicenter of all MSC groups. Although there were no significant differences in functional recovery among the MSCs groups, UCB-derived MSCs (UCSCs) induced more nerve regeneration and anti-inflammation activity (P<0.05). Transplanted MSCs survived for 8 weeks and reduced IL-6 and COX-2 levels, which may have promoted neuronal regeneration in the spinal cord. Our data suggest that transplantation of MSCs promotes functional recovery after SCI. Furthermore, application of UCSCs led to more nerve regeneration, neuroprotection and less inflammation compared to other MSCs.
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Affiliation(s)
- Hak-Hyun Ryu
- Department of Veterinary Surgery, College of Veterinary Medicine, Seoul National University, Daehak-dong, Gwanak-gu, Seoul 151-742, Korea
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Ruff CA, Staak N, Patodia S, Kaswich M, Rocha-Ferreira E, Da Costa C, Brecht S, Makwana M, Fontana X, Hristova M, Rumajogee P, Galiano M, Bohatschek M, Herdegen T, Behrens A, Raivich G. Neuronal c-Jun is required for successful axonal regeneration, but the effects of phosphorylation of its N-terminus are moderate. J Neurochem 2012; 121:607-18. [PMID: 22372722 PMCID: PMC4491308 DOI: 10.1111/j.1471-4159.2012.07706.x] [Citation(s) in RCA: 53] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2012] [Revised: 02/05/2012] [Accepted: 02/21/2012] [Indexed: 12/18/2022]
Abstract
Although neural c-Jun is essential for successful peripheral nerve regeneration, the cellular basis of this effect and the impact of c-Jun activation are incompletely understood. In the current study, we explored the effects of neuron-selective c-Jun deletion, substitution of serine 63 and 73 phosphoacceptor sites with non-phosphorylatable alanine, and deletion of Jun N-terminal kinases 1, 2 and 3 in mouse facial nerve regeneration. Removal of the floxed c-jun gene in facial motoneurons using cre recombinase under control of a neuron-specific synapsin promoter (junΔS) abolished basal and injury-induced neuronal c-Jun immunoreactivity, as well as most of the molecular responses following facial axotomy. Absence of neuronal Jun reduced the speed of axonal regeneration following crush, and prevented most cut axons from reconnecting to their target, significantly reducing functional recovery. Despite blocking cell death, this was associated with a large number of shrunken neurons. Finally, junΔS mutants also had diminished astrocyte and microglial activation and T-cell influx, suggesting that these non-neuronal responses depend on the release of Jun-dependent signals from neighboring injured motoneurons. The effects of substituting serine 63 and 73 phosphoacceptor sites (junAA), or of global deletion of individual kinases responsible for N-terminal c-Jun phosphorylation were mild. junAA mutants showed decrease in neuronal cell size, a moderate reduction in post-axotomy CD44 levels and slightly increased astrogliosis. Deletion of Jun N-terminal kinase (JNK)1 or JNK3 showed delayed functional recovery; deletion of JNK3 also interfered with T-cell influx, and reduced CD44 levels. Deletion of JNK2 had no effect. Thus, neuronal c-Jun is needed in regeneration, but JNK phosphorylation of the N-terminus mostly appears to not be required for its function.
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Affiliation(s)
- Crystal A Ruff
- Perinatal Brain Repair Group, Inst Women's Health, University College London, London, UK
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Neural stem cells for spinal cord repair. Cell Tissue Res 2012; 349:349-62. [DOI: 10.1007/s00441-012-1363-2] [Citation(s) in RCA: 43] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2011] [Accepted: 02/02/2012] [Indexed: 12/20/2022]
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Jadasz JJ, Aigner L, Rivera FJ, Küry P. The remyelination Philosopher's Stone: stem and progenitor cell therapies for multiple sclerosis. Cell Tissue Res 2012; 349:331-47. [PMID: 22322424 DOI: 10.1007/s00441-012-1331-x] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2011] [Accepted: 01/16/2012] [Indexed: 12/12/2022]
Abstract
Multiple sclerosis (MS) is an autoimmune disease that leads to oligodendrocyte loss and subsequent demyelination of the adult central nervous system (CNS). The pathology is characterized by transient phases of recovery during which remyelination can occur as a result of resident oligodendroglial precursor and stem/progenitor cell activation. However, myelin repair efficiency remains low urging the development of new therapeutical approaches that promote remyelination activities. Current MS treatments target primarily the immune system in order to reduce the relapse rate and the formation of inflammatory lesions, whereas no therapies exist in order to regenerate damaged myelin sheaths. During the last few years, several transplantation studies have been conducted with adult neural stem/progenitor cells and glial precursor cells to evaluate their potential to generate mature oligodendrocytes that can remyelinate axons. In parallel, modulation of the endogenous progenitor niche by neural and mesenchymal stem cell transplantation with the aim of promoting CNS progenitor differentiation and myelination has been studied. Here, we summarize these findings and discuss the properties and consequences of the various molecular and cell-mediated remyelination approaches. Moreover, we address age-associated intrinsic cellular changes that might influence the regenerative outcome. We also evaluate the extent to which these experimental treatments might increase the regeneration capacity of the demyelinated human CNS and hence be turned into future therapies.
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Affiliation(s)
- Janusz J Jadasz
- Department of Neurology, Medical Faculty, Heinrich Heine University, Düsseldorf, Germany
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43
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Becker D, McDonald JW. Approaches to repairing the damaged spinal cord: overview. HANDBOOK OF CLINICAL NEUROLOGY 2012; 109:445-61. [PMID: 23098730 DOI: 10.1016/b978-0-444-52137-8.00028-0] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
Affecting young people during the most productive period of their lives, spinal cord injury (SCI) is a devastating problem for modern society. In the past, treating SCI seemed frustrating and hopeless because of the tremendous morbidity and mortality, life-shattering impact, and limited therapeutic options associated with the condition. Today, however, an understanding of the underlying pathophysiological mechanisms, the development of neuroprotective interventions, and progress toward regenerative interventions are increasing hope for functional restoration. In this chapter, we provide an overview of various repair strategies for the injured spinal cord. Special attention will be paid to strategies that promote spontaneous regeneration, including functional electrical stimulation, cell replacement, neuroprotection, and remyelination. The concept that limited rebuilding can provide a disproportionate improvement in quality of life is emphasized throughout. New surgical procedures, pharmacological treatments, and functional neuromuscular stimulation methods have evolved over the last decades and can improve functional outcomes after spinal cord injury; however, limiting secondary injury remains the primary goal. Tissue replacement strategies, including the use of embryonic stem cells, become an important tool and can restore function in animal models. Controlled clinical trials are now required to confirm these observations. The ultimate goal is to harness the body's own potential to replace lost central nervous system cells by activation of endogenous progenitor cell repair mechanisms.
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Affiliation(s)
- Daniel Becker
- Department of Neurology, Johns Hopkins University School of Medicine, Baltimore, MD, USA
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Isolation of mineralizing Nestin+ Nkx6.1+ vascular muscular cells from the adult human spinal cord. BMC Neurosci 2011; 12:99. [PMID: 21985235 PMCID: PMC3205052 DOI: 10.1186/1471-2202-12-99] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2011] [Accepted: 10/10/2011] [Indexed: 01/23/2023] Open
Abstract
Background The adult central nervous system (CNS) contains different populations of immature cells that could possibly be used to repair brain and spinal cord lesions. The diversity and the properties of these cells in the human adult CNS remain to be fully explored. We previously isolated Nestin+ Sox2+ neural multipotential cells from the adult human spinal cord using the neurosphere method (i.e. non adherent conditions and defined medium). Results Here we report the isolation and long term propagation of another population of Nestin+ cells from this tissue using adherent culture conditions and serum. QPCR and immunofluorescence indicated that these cells had mesenchymal features as evidenced by the expression of Snai2 and Twist1 and lack of expression of neural markers such as Sox2, Olig2 or GFAP. Indeed, these cells expressed markers typical of smooth muscle vascular cells such as Calponin, Caldesmone and Acta2 (Smooth muscle actin). These cells could not differentiate into chondrocytes, adipocytes, neuronal and glial cells, however they readily mineralized when placed in osteogenic conditions. Further characterization allowed us to identify the Nkx6.1 transcription factor as a marker for these cells. Nkx6.1 was expressed in vivo by CNS vascular muscular cells located in the parenchyma and the meninges. Conclusion Smooth muscle cells expressing Nestin and Nkx6.1 is the main cell population derived from culturing human spinal cord cells in adherent conditions with serum. Mineralization of these cells in vitro could represent a valuable model for studying calcifications of CNS vessels which are observed in pathological situations or as part of the normal aging. In addition, long term propagation of these cells will allow the study of their interaction with other CNS cells and their implication in scar formation during spinal cord injury.
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Abstract
The spontaneous recovery observed in the early stages of multiple sclerosis (MS) is substituted with a later progressive course and failure of endogenous processes of repair and remyelination. Although this is the basic rationale for cell therapy, it is not clear yet to what degree the MS brain is amenable for repair and whether cell therapy has an advantage in comparison to other strategies to enhance endogenous remyelination. Central to the promise of stem cell therapy is the therapeutic plasticity, by which neural precursors can replace damaged oligodendrocytes and myelin, and also effectively attenuate the autoimmune process in a local, nonsystemic manner to protect brain cells from further injury, as well as facilitate the intrinsic capacity of the brain for recovery. These fundamental immunomodulatory and neurotrophic properties are shared by stem cells of different sources. By using different routes of delivery, cells may target both affected white matter tracts and the perivascular niche where the trafficking of immune cells occur. It is unclear yet whether the therapeutic properties of transplanted cells are maintained with the duration of time. The application of neural stem cell therapy (derived from fetal brain or from human embryonic stem cells) will be realized once their purification, mass generation, and safety are guaranteed. However, previous clinical experience with bone marrow stromal (mesenchymal) stem cells and the relative easy expansion of autologous cells have opened the way to their experimental application in MS. An initial clinical trial has established the probable safety of their intravenous and intrathecal delivery. Short-term follow-up observed immunomodulatory effects and clinical benefit justifying further clinical trials.
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Affiliation(s)
- Tamir Ben-Hur
- Department of Neurology, The Agnes Ginges Center for Human Neurogenetics, Hadassah-Hebrew University Hospital, Jerusalem 91120, Israel.
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Haist V, Ulrich R, Kalkuhl A, Deschl U, Baumgärtner W. Distinct spatio-temporal extracellular matrix accumulation within demyelinated spinal cord lesions in Theiler's murine encephalomyelitis. Brain Pathol 2011; 22:188-204. [PMID: 21767322 DOI: 10.1111/j.1750-3639.2011.00518.x] [Citation(s) in RCA: 35] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
Abstract
The accumulation of extracellular matrix (ECM) and glial scar formation are considered important factors for the failure of regeneration in central nervous system (CNS) injury and multiple sclerosis. Theiler's murine encephalomyelitis (TME) as a model of multiple sclerosis served to evaluate the spatio-temporal course of ECM alterations in demyelinating conditions. Microarray analysis revealed only mildly upregulated gene expression of ECM molecules, their biosynthesis pathways and pro-fibrotic factors, while upregulation of matrix remodeling enzymes was more prominent. Immunohistochemistry demonstrated progressive accumulation of chondroitin sulfate proteoglycans, glycoproteins and collagens within demyelinated TME lesions, paralleling the development of astrogliosis. Deposition of collagen IV, laminin, perlecan and tenascin-C started 28 days postinfection (dpi), collagen I, decorin, entactin and neurocan accumulated from 56 dpi on, and fibronectin from 98 dpi on. The basement membrane (BM) molecules collagen IV, entactin, fibronectin, laminin and perlecan showed perivascular and parenchymal deposition, while the non-BM components collagen I, decorin, neurocan and tenascin-C only accumulated in a nonvascular pattern in demyelinated areas. Contrary, phosphacan expression progressively decreased during TME. The immunoreactivity of aggrecan and brevican remained unchanged. The spatio-temporal association of matrix accumulation with astrogliosis suggests a mainly astrocytic origin of ECM deposits, which in turn may contribute to remyelination failure in TME.
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Affiliation(s)
- Verena Haist
- Department of Pathology, University of Veterinary Medicine Hannover, Hannover, Germany
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Usach V, Goitia B, Lavalle L, Martinez Vivot R, Setton-Avruj P. Bone marrow mononuclear cells migrate to the demyelinated sciatic nerve and transdifferentiate into Schwann cells after nerve injury: Attempt at a peripheral nervous system intrinsic repair mechanism. J Neurosci Res 2011; 89:1203-17. [DOI: 10.1002/jnr.22645] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/2010] [Revised: 02/03/2011] [Accepted: 02/08/2011] [Indexed: 12/13/2022]
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Grigoriadis N, Lourbopoulos A, Lagoudaki R, Frischer JM, Polyzoidou E, Touloumi O, Simeonidou C, Deretzi G, Kountouras J, Spandou E, Kotta K, Karkavelas G, Tascos N, Lassmann H. Variable behavior and complications of autologous bone marrow mesenchymal stem cells transplanted in experimental autoimmune encephalomyelitis. Exp Neurol 2011; 230:78-89. [PMID: 21440544 DOI: 10.1016/j.expneurol.2011.02.021] [Citation(s) in RCA: 65] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/27/2010] [Revised: 12/17/2010] [Accepted: 02/15/2011] [Indexed: 12/13/2022]
Abstract
Autologous bone marrow stromal cells (BMSCs) offer significant practical advantages for potential clinical applications in multiple sclerosis (MS). Based on recent experimental data, a number of clinical trials have been designed for the intravenous (IV) and/or intrathecal (ITH) administration of BMSCs in MS patients. Delivery of BMSCs in the cerebrospinal fluid via intracerebroventricular (ICV) transplantation is a useful tool to identify mechanisms underlying the migration and function of these cells. In the current study, BMSCs were ICV administered in severe and mild EAE, as well as naive animals; neural precursor cells (NPCs) served as cellular controls. Our data indicated that ICV-transplanted BMSCs significantly ameliorated mild though not severe EAE. Moreover, BMSCs exerted significant anti-inflammatory effect on spinal cord with concomitant reduced axonopathy only in the mild EAE model. BMSCs migrated into the brain parenchyma and, depending on their cellular density, within brain parenchyma formed cellular masses characterized by focal inflammation, demyelination, axonal loss and increased collagen-fibronectin deposition. These masses were present in 64% of ICV BMASC-transplanted severe EAE animals whereas neither BMSCs transplanted in mild EAE cases nor the NPCs exhibited similar behavior. BMSCs possibly exerted their fibrogenic effect via both paracrine and autocrine manner, at least partly due to up-regulation of connective tissue growth factor (CTGF) under the trigger of TGFb1. Our findings are of substantial relevance for clinical trials in MS, particularly regarding the possibility that ICV transplanted BMSCs entering the inflamed central nervous system may exhibit - under conditions - a local pathology of yet unknown consequences.
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Affiliation(s)
- Nikolaos Grigoriadis
- Laboratory of Experimental Neurology and Neuroimmunology, 2nd Department of Neurology, AHEPA University Hospital, Aristotle University of Thessaloniki, Macedonia, Greece.
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Cellular and paracellular transplants for spinal cord injury: a review of the literature. Childs Nerv Syst 2011; 27:237-43. [PMID: 20972681 DOI: 10.1007/s00381-010-1312-x] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/23/2010] [Accepted: 10/11/2010] [Indexed: 01/01/2023]
Abstract
BACKGROUND Experimental approaches to limit the spinal cord injury and to promote neurite outgrowth and improved function from a spinal cord injury have exploded in recent decades. Due to the cavitation resulting after a spinal cord injury, newer important treatment strategies have consisted of implanting scaffolds with or without cellular transplants. There are various scaffolds, as well as various different cellular transplants including stem cells at different levels of differentiation, Schwann cells and peripheral nerve implants, that have been reviewed. Also, attention has been given to different re-implantation techniques in avulsion injuries. METHODS Using standard search engines, this literature is reviewed. CONCLUSION Cellular and paracellular transplantation for application to spinal cord injury offers promising results for those patients with spinal cord pathology.
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50
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Lin PC, Chang LF, Liu PY, Lin SZ, Wu WC, Chen WS, Tsai CH, Chiou TW, Harn HJ. Botanical Drugs and Stem Cells. Cell Transplant 2011; 20:71-83. [PMID: 20887674 DOI: 10.3727/096368910x532747] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023] Open
Abstract
The potential to generate virtually any differentiated cell type from stem cells offers the possibility of creating new sources of cells for regenerative medicine. To realize this potential, it will be essential to control stem cell differentiation. Chinese herbal medicine is a major aspect of traditional Chinese medicine and is a rich source of unique chemicals. As such, individual herbs or extracts may play a role in the proliferation and differentiation of stem cells. In this review, we discuss some of the Chinese herbal medicines that are used to treat human diseases such as neuronal degenerative diseases, cardiovascular diseases, and osteoporosis. We also describe the relationship between Chinese herbal medicines and stem cell regulation.
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Affiliation(s)
- Po-Cheng Lin
- Department of Life Science and Graduate Institute of Biotechnology, National Dong Hwa University, Hualien, Taiwan
- Center for Neuropsychiatry, China Medical University Hospital, Taichung, Taiwan
| | - Li-Fu Chang
- Department of Life Science and Graduate Institute of Biotechnology, National Dong Hwa University, Hualien, Taiwan
| | - Po-Yen Liu
- Graduate Institute of Chinese Medical Science, China Medical University, Taichung, Taiwan
| | - Shinn-Zong Lin
- Center for Neuropsychiatry, China Medical University Hospital, Taichung, Taiwan
- China Medical University Beigang Hospital, Yun-Lin, Taiwan
| | - Wan-Chen Wu
- Graduate Institute of Basic Medical Science, China Medical University, Taichung, Taiwan
| | - Wuen-Shyong Chen
- Department of Stem Cell Applied Technology, Gwo Xi Stem Cell Applied Technology, Hsinchu, Taiwan
| | - Chang-Hai Tsai
- Department of Pediatrics, China Medical University Hospital, Taichung, Taiwan
- Department of Healthcare Administration, Asia University, Taichung, Taiwan
| | - Tzyy-Wen Chiou
- Department of Life Science and Graduate Institute of Biotechnology, National Dong Hwa University, Hualien, Taiwan
| | - Horng-Jyh Harn
- Department of Pathology, China Medical University and Hospital, Taichung, Taiwan
- Department of Medicine, China Medical University, Taichung, Taiwan
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