101
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Gao Q, Katakowski M, Chen X, Li Y, Chopp M. Human Marrow Stromal Cells Enhance Connexin43 Gap Junction Intercellular Communication in Cultured Astrocytes. Cell Transplant 2017; 14:109-17. [PMID: 15881420 DOI: 10.3727/000000005783983205] [Citation(s) in RCA: 30] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022] Open
Abstract
Human marrow stromal cells (hMSCs) provide functional benefit in rats subjected to stroke. Astrocytes are coupled into a cellular network via gap junction channels, predominantly composed of connexin-43 (Cx43) proteins. Astrocytes are believed to play a vital role in neuroprotection by providing energy substrates to neurons and by regulating the concentrations of K+ and neurotransmitters via gap junctions. We therefore investigated the effect of factors secreted by hMSCs on gap junction intercellular communication (GJIC), expression of Cx43, and phosphorylation of Cx43 in an astrocyte cell culture system. Exposing rat cortical astrocytes to various concentrations of hMSC conditioned medium, we demonstrate that hMSCs produce soluble factors that significantly increase astrocytic GJIC, measured by the scrape-loading dye transfer method. Immunohistochemistry and Western blot showed increased Cx43 expression concomitant with altered GJIC. As the PI3K/Akt signaling pathway has been demonstrated to alter gap junction expression and GJIC, we selectively blocked phosphoinositide 3-kinase (PI3K). Addition of the PI3K inhibitor LY294002 decreased GJIC and Cx43 expression in astrocytes. These inhibitory effects of LY294002 were countered by the addition of hMSC conditioned media. Furthermore, coculturing hMSCs with rat astrocytes increased astrocyte GJIC in a manner dependent upon the hMSC/astrocyte ratio. These findings demonstrate that hMSCs secrete soluble factors that increase GJIC of astrocytes through upregulation of Cx43, and indicate a mechanistic role for PI3K.
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Affiliation(s)
- Qi Gao
- Department of Neurology, Henry Ford Health Sciences Center, Detroit, MI 48202, USA
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102
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Li T, Liu Y, Yu L, Lao J, Zhang M, Jin J, Lu Z, Liu Z, Xu Y. Human Umbilical Cord Mesenchymal Stem Cells Protect Against SCA3 by Modulating the Level of 70 kD Heat Shock Protein. Cell Mol Neurobiol 2017; 38:641-655. [PMID: 28667374 DOI: 10.1007/s10571-017-0513-1] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2017] [Accepted: 06/17/2017] [Indexed: 02/06/2023]
Abstract
Spinocerebellar ataxia 3 (SCA3), which is a progressive neurodegenerative disease, is currently incurable. Emerging studies have reported that human umbilical cord mesenchymal stem cells (HUC-MSCs) transplantation could be a promising therapeutic strategy for cerebellar ataxias. However, few studies have evaluated the effects of HUC-MSCs on SCA3 transgenic mouse. Thus, we investigated the effects of HUC-MSCs on SCA3 mice and the underlying mechanisms in this study. SCA3 transgenic mice received systematic administration of 2 × 106 HUC-MSCs once per week for 12 continuous weeks. Motor coordination was measured blindly by open field tests and footprint tests. Immunohistochemistry and Nissl staining were applied to detect neuropathological alternations. Neurotrophic factors in the cerebellum were assessed by ELISA. We used western blotting to detect the alternations of heat shock protein 70 (HSP70), IGF-1, mutant ataxin-3, and apoptosis-associated proteins. Tunel staining was also used to detect apoptosis of affected cells. The distribution and differentiation of HUC-MSCs were determined by immunofluorescence. Our results exhibited that HUC-MSCs transplantation significantly alleviated motor impairments, corresponding to a reduction of cerebellar atrophy, preservation of neurons, decreased expression of mutant ataxin-3, and increased expression of HSP70. Implanted HUC-MSCs were mainly distributed in the cerebellum and pons with no obvious differentiation, and the expressions of IGF-1, VEGF, and NGF in the cerebellum were significantly elevated. Furthermore, with the use of HSP70 analogy quercetin injection, it demonstrated that HSP70 is involved in mutant ataxin-3 reduction. These results showed that HUC-MSCs implantation is a potential treatment for SCA3, likely through upregulating the IGF-1/HSP70 pathway and subsequently inhibiting mutant ataxin-3 toxicity.
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Affiliation(s)
- Tan Li
- Department of Neurology, Affiliated Drum Tower Hospital of Nanjing University Medical School, 321 ZhongShan Road, Nanjing City, 210008, Jiangsu Province, People's Republic of China
| | - Yi Liu
- Department of Neurology, Affiliated Drum Tower Hospital of Nanjing University Medical School, 321 ZhongShan Road, Nanjing City, 210008, Jiangsu Province, People's Republic of China
| | - Linjie Yu
- Department of Neurology, Affiliated Drum Tower Hospital of Nanjing University Medical School, 321 ZhongShan Road, Nanjing City, 210008, Jiangsu Province, People's Republic of China
| | - Jiamin Lao
- Department of Neurology, Affiliated Drum Tower Hospital of Nanjing University Medical School, 321 ZhongShan Road, Nanjing City, 210008, Jiangsu Province, People's Republic of China
| | - Meijuan Zhang
- Department of Neurology, Affiliated Drum Tower Hospital of Nanjing University Medical School, 321 ZhongShan Road, Nanjing City, 210008, Jiangsu Province, People's Republic of China.,Department of Neurology, Drum Tower Hospital of Nanjing Medical University, Nanjing, People's Republic of China
| | - Jiali Jin
- Department of Neurology, Affiliated Drum Tower Hospital of Nanjing University Medical School, 321 ZhongShan Road, Nanjing City, 210008, Jiangsu Province, People's Republic of China.,Department of Neurology, Drum Tower Hospital of Nanjing Medical University, Nanjing, People's Republic of China
| | - Zhengjuan Lu
- Department of Neurology, Affiliated Drum Tower Hospital of Nanjing University Medical School, 321 ZhongShan Road, Nanjing City, 210008, Jiangsu Province, People's Republic of China.,Department of Neurology, Drum Tower Hospital of Nanjing Medical University, Nanjing, People's Republic of China
| | - Zhuo Liu
- Department of Neurology, Affiliated Drum Tower Hospital of Nanjing University Medical School, 321 ZhongShan Road, Nanjing City, 210008, Jiangsu Province, People's Republic of China. .,Department of Neurology, Drum Tower Hospital of Nanjing Medical University, Nanjing, People's Republic of China.
| | - Yun Xu
- Department of Neurology, Affiliated Drum Tower Hospital of Nanjing University Medical School, 321 ZhongShan Road, Nanjing City, 210008, Jiangsu Province, People's Republic of China.,Department of Neurology, Drum Tower Hospital of Nanjing Medical University, Nanjing, People's Republic of China
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103
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Boda E, Nato G, Buffo A. Emerging pharmacological approaches to promote neurogenesis from endogenous glial cells. Biochem Pharmacol 2017. [PMID: 28647491 DOI: 10.1016/j.bcp.2017.06.129] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Abstract
Neurodegenerative disorders are emerging as leading contributors to the global disease burden. While some drug-based approaches have been designed to limit or prevent neuronal loss following acute damage or chronic neurodegeneration, regeneration of functional neurons in the adult Central Nervous System (CNS) still remains an unmet need. In this context, the exploitation of endogenous cell sources has recently gained an unprecedented attention, thanks to the demonstration that, in some CNS regions or under specific circumstances, glial cells can activate spontaneous neurogenesis or can be instructed to produce neurons in the adult mammalian CNS parenchyma. This field of research has greatly advanced in the last years and identified interesting molecular and cellular mechanisms guiding the neurogenic activation/conversion of glia. In this review, we summarize the evolution of the research devoted to understand how resident glia can be directed to produce neurons. We paid particular attention to pharmacologically-relevant approaches exploiting the modulation of niche-associated factors and the application of selected small molecules.
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Affiliation(s)
- Enrica Boda
- Department of Neuroscience Rita Levi-Montalcini, University of Turin, I-10126 Turin, Italy; Neuroscience Institute Cavalieri Ottolenghi, I-10043 Orbassano, Turin, Italy.
| | - Giulia Nato
- Department of Neuroscience Rita Levi-Montalcini, University of Turin, I-10126 Turin, Italy; Neuroscience Institute Cavalieri Ottolenghi, I-10043 Orbassano, Turin, Italy
| | - Annalisa Buffo
- Department of Neuroscience Rita Levi-Montalcini, University of Turin, I-10126 Turin, Italy; Neuroscience Institute Cavalieri Ottolenghi, I-10043 Orbassano, Turin, Italy
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104
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Tang Y, Yasuhara T, Hara K, Matsukawa N, Maki M, Yu G, Xu L, Hess DC, Borlongan CV. Transplantation of Bone Marrow-Derived Stem Cells: A Promising Therapy for Stroke. Cell Transplant 2017. [DOI: 10.3727/000000007783464614] [Citation(s) in RCA: 74] [Impact Index Per Article: 10.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023] Open
Abstract
Stroke remains a major cause of death in the US and around the world. Over the last decade, stem cell therapy has been introduced as an experimental treatment for stroke. Transplantation of stem cells or progenitors into the injured site to replace the nonfunctional cells, and enhancement of proliferation or differentiation of endogenous stem or progenitor cells stand as the two major cell-based strategies. Potential sources of stem/progenitor cells for stroke include fetal neural stem cells, embryonic stem cells, neuroteratocarcinoma cells, umbilical cord blood-derived nonhematopoietic stem cells, and bone marrow-derived stem cells. The goal of this article is to provide an update on the preclinical use of bone marrow-derived stem cells with major emphasis on mesenchymal stem cells (MSCs) and multipotent adult progenitor cells (MAPCs) because they are currently most widely applied in experimental stroke studies and are now being phased into early clinical trials. The phenotypic features of MSCs and MAPCs, as well as their application in stroke, are described.
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Affiliation(s)
- Yamei Tang
- Department of Neurology, Medical College of Georgia, Augusta, GA, USA
- Department of Neurology, Sun Yat-Sen Memorial Hospital, Sun Yat-Sen University, Guangzhou 510120, P. R. China
| | - Takao Yasuhara
- Department of Neurology, Medical College of Georgia, Augusta, GA, USA
| | - Koichi Hara
- Department of Neurology, Medical College of Georgia, Augusta, GA, USA
| | | | - Mina Maki
- Department of Neurology, Medical College of Georgia, Augusta, GA, USA
| | - Guolong Yu
- Department of Neurology, Medical College of Georgia, Augusta, GA, USA
| | - Lin Xu
- Department of Neurology, Medical College of Georgia, Augusta, GA, USA
| | - David C. Hess
- Department of Neurology, Medical College of Georgia, Augusta, GA, USA
- Research & Affiliations Service Line, Augusta VAMC, Augusta, GA, USA
| | - Cesario V. Borlongan
- Department of Neurology, Medical College of Georgia, Augusta, GA, USA
- Research & Affiliations Service Line, Augusta VAMC, Augusta, GA, USA
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105
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Abstract
Stroke remains a leading cause of death and disability worldwide. An increasing number of animal studies and preclinical trials have, however, provided evidence that regenerative cell-based therapies can lead to functional recovery in stroke patients. Stem cells can differentiate into neural lineages to replace lost neurons. Moreover, they provide trophic support to tissue at risk in the penumbra surrounding the infarct area, enhance vasculogenesis, and help promote survival, migration, and differentiation of the endogenous precursor cells after stroke. Stem cells are highly migratory and seem to be attracted to areas of brain pathology such as ischemic regions. The pathotropism may follow the paradigm of stem cell homing to bone marrow and leukocytes migrating to inflammatory tissue. The molecular signaling therefore may involve various chemokines, cytokines, and integrins. Among these, stromal cell-derived factor-1 (SDF-1)/CXC chemokine receptor-4 (CXCR4) signaling is required for the interaction of stem cells and ischemia-damaged host tissues. SDF-1 is secreted primarily by bone marrow fibroblasts and is required for BMSC homing to bone marrow. Overexpression of SDF-1 in ischemic tissues has been found to enhance stem cell recruitment from peripheral blood and to induce neoangiogenesis. Furthermore, SDF-1 expression in the lesioned area peaked within 7 days postischemia, in concordance with the time window of G-CSF therapy for stroke. Recent data have shown that SDF-1 expression is directly proportional to reduced tissue oxygen tension. SDF-1 gene expression is regulated by hypoxic-inducible factor-1 (HIF-1), a hypoxia-dependent stabilization transcription factor. Thus, ischemic tissue may recruit circulating progenitors regulated by hypoxia through differential expression of HIF-1α and SDF-1. In addition to SDF-1, β2-integrins also play a role in the homing of hematopoietic progenitor cells to sites of ischemia and are critical for their neovascularization capacity. In our recent report, increased expression of β1-integrins apparently contributed to the local neovasculization of the ischemic brain as well as its functional recovery. Identification of the molecular pathways involved in stem cell homing into the ischemic areas could pave the way for the development of new treatment regimens, perhaps using small molecules, designed to enhance endogeneous mobilization of stem cells in various disease states, including chronic stroke and other neurodegenerative diseases. For maximal functional recovery, however, regenerative therapy may need to follow combinatorial approaches, which may include cell replacement, trophic support, protection from oxidative stress, and the neutralization of the growth-inhibitory components for endogenous neuronal stem cells.
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Affiliation(s)
- Ying-Chao Chang
- Department of Pediatrics, Chang Gung Memorial Hospital-Kaohsiung Medical Center, Chang Guang University College of Medicine, Kaohsiung, Taiwan
| | - Woei-Cherng Shyu
- Neuro-Medical Scientific Center, Tzu-Chi Buddhist General Hospital, Tzu-Chi University, Hualien, Taiwan
| | - Shinn-Zong Lin
- Neuro-Medical Scientific Center, Tzu-Chi Buddhist General Hospital, Tzu-Chi University, Hualien, Taiwan
| | - Hung Li
- Institute of Molecular Biology, Academia Sinica, Taipei, Taiwan
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106
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Su WT, Pan YJ, Huang TY, Huang YC. Hydrophobic PDMS promotes neural progenitor formation from SHEDs by Schwann cell–cultivated medium induction. INT J POLYM MATER PO 2017. [DOI: 10.1080/00914037.2017.1297937] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Affiliation(s)
- Wen-Ta Su
- Department of Chemical Engineering and Biotechnology, National Taipei University of Technology, Taipei, Taiwan
| | - Yu-Jing Pan
- Department of Chemical Engineering and Biotechnology, National Taipei University of Technology, Taipei, Taiwan
| | - Te-Yang Huang
- Department of Orthopedic Surgery, Mackay Memorial Hospital, Taipei, Taiwan
| | - Yu-Ching Huang
- Department of Orthopedic Surgery, Mackay Memorial Hospital, Taipei, Taiwan
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107
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Xin H, Katakowski M, Wang F, Qian JY, Liu XS, Ali MM, Buller B, Zhang ZG, Chopp M. MicroRNA cluster miR-17-92 Cluster in Exosomes Enhance Neuroplasticity and Functional Recovery After Stroke in Rats. Stroke 2017; 48:747-753. [PMID: 28232590 PMCID: PMC5330787 DOI: 10.1161/strokeaha.116.015204] [Citation(s) in RCA: 384] [Impact Index Per Article: 54.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2016] [Revised: 11/08/2016] [Accepted: 11/14/2016] [Indexed: 12/13/2022]
Abstract
BACKGROUND AND PURPOSE Multipotent mesenchymal stromal cell (MSC) harvested exosomes are hypothesized as the major paracrine effectors of MSCs. In vitro, the miR-17-92 cluster promotes oligodendrogenesis, neurogenesis, and axonal outgrowth. We, therefore, investigated whether the miR-17-92 cluster-enriched exosomes harvested from MSCs transfected with an miR-17-92 cluster plasmid enhance neurological recovery compared with control MSC-derived exosomes. METHODS Rats subjected to 2 hours of transient middle cerebral artery occlusion were intravenously administered miR-17-92 cluster-enriched exosomes, control MSC exosomes, or liposomes and were euthanized 28 days post-middle cerebral artery occlusion. Histochemistry, immunohistochemistry, and Golgi-Cox staining were used to assess dendritic, axonal, synaptic, and myelin remodeling. Expression of phosphatase and tensin homolog and activation of its downstream proteins, protein kinase B, mechanistic target of rapamycin, and glycogen synthase kinase 3β in the peri-infarct region were measured by means of Western blots. RESULTS Compared with the liposome treatment, both exosome treatment groups exhibited significant improvement of functional recovery, but miR-17-92 cluster-enriched exosome treatment had significantly more robust effects on improvement of neurological function and enhancements of oligodendrogenesis, neurogenesis, and neurite remodeling/neuronal dendrite plasticity in the ischemic boundary zone (IBZ) than the control MSC exosome treatment. Moreover, miR-17-92 cluster-enriched exosome treatment substantially inhibited phosphatase and tensin homolog, a validated miR-17-92 cluster target gene, and subsequently increased the phosphorylation of phosphatase and tensin homolog downstream proteins, protein kinase B, mechanistic target of rapamycin, and glycogen synthase kinase 3β compared with control MSC exosome treatment. CONCLUSIONS Our data suggest that treatment of stroke with tailored exosomes enriched with the miR-17-92 cluster increases neural plasticity and functional recovery after stroke, possibly via targeting phosphatase and tensin homolog to activate the PI3K/protein kinase B/mechanistic target of rapamycin/glycogen synthase kinase 3β signaling pathway.
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Affiliation(s)
- Hongqi Xin
- From the Department of Neurology, Henry Ford Hospital, Detroit, MI (H.X., M.K., F.W., J.-Y.Q., X.S.L., M.M.A., B.B., Z.G.Z., M.C.); and Department of Physics, Oakland University, Rochester, MI (M.C.)
| | - Mark Katakowski
- From the Department of Neurology, Henry Ford Hospital, Detroit, MI (H.X., M.K., F.W., J.-Y.Q., X.S.L., M.M.A., B.B., Z.G.Z., M.C.); and Department of Physics, Oakland University, Rochester, MI (M.C.)
| | - Fengjie Wang
- From the Department of Neurology, Henry Ford Hospital, Detroit, MI (H.X., M.K., F.W., J.-Y.Q., X.S.L., M.M.A., B.B., Z.G.Z., M.C.); and Department of Physics, Oakland University, Rochester, MI (M.C.)
| | - Jian-Yong Qian
- From the Department of Neurology, Henry Ford Hospital, Detroit, MI (H.X., M.K., F.W., J.-Y.Q., X.S.L., M.M.A., B.B., Z.G.Z., M.C.); and Department of Physics, Oakland University, Rochester, MI (M.C.)
| | - Xian Shuang Liu
- From the Department of Neurology, Henry Ford Hospital, Detroit, MI (H.X., M.K., F.W., J.-Y.Q., X.S.L., M.M.A., B.B., Z.G.Z., M.C.); and Department of Physics, Oakland University, Rochester, MI (M.C.)
| | - Meser M Ali
- From the Department of Neurology, Henry Ford Hospital, Detroit, MI (H.X., M.K., F.W., J.-Y.Q., X.S.L., M.M.A., B.B., Z.G.Z., M.C.); and Department of Physics, Oakland University, Rochester, MI (M.C.)
| | - Benjamin Buller
- From the Department of Neurology, Henry Ford Hospital, Detroit, MI (H.X., M.K., F.W., J.-Y.Q., X.S.L., M.M.A., B.B., Z.G.Z., M.C.); and Department of Physics, Oakland University, Rochester, MI (M.C.)
| | - Zheng Gang Zhang
- From the Department of Neurology, Henry Ford Hospital, Detroit, MI (H.X., M.K., F.W., J.-Y.Q., X.S.L., M.M.A., B.B., Z.G.Z., M.C.); and Department of Physics, Oakland University, Rochester, MI (M.C.)
| | - Michael Chopp
- From the Department of Neurology, Henry Ford Hospital, Detroit, MI (H.X., M.K., F.W., J.-Y.Q., X.S.L., M.M.A., B.B., Z.G.Z., M.C.); and Department of Physics, Oakland University, Rochester, MI (M.C.).
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108
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Hoornaert CJ, Le Blon D, Quarta A, Daans J, Goossens H, Berneman Z, Ponsaerts P. Concise Review: Innate and Adaptive Immune Recognition of Allogeneic and Xenogeneic Cell Transplants in the Central Nervous System. Stem Cells Transl Med 2017; 6:1434-1441. [PMID: 28244236 PMCID: PMC5442707 DOI: 10.1002/sctm.16-0434] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2016] [Accepted: 01/16/2017] [Indexed: 12/13/2022] Open
Abstract
Over the last 30 years, numerous allogeneic and xenogeneic cell grafts have been transplanted into the central nervous system (CNS) of mice and men in an attempt to cure neurological diseases. In the early studies, human or porcine embryonic neural cells were grafted in the striatum of animals or patients in an attempt to replace lost neurons. Although the immune-privileged status of the brain as a recipient organ was widely accepted, it rapidly became evident that CNS-grafted allogeneic and xenogeneic cells could be recognized and rejected by the immune system, resulting in poor neural graft survival and limited functional recovery. Since then, the CNS transplantation field has witnessed a sharp rise in the number of studies in which allogeneic and xenogeneic neural or mesenchymal stem cells (NSCs or MSCs, respectively) are transplanted, predominantly aiming at providing trophic stimulation and promoting endogenous repair of the brain. Interestingly, in many recent NSC and MSC-based publications functional improvement was used as the principal measure to evaluate the success of cell transplantation, while the fate of transplanted cells remained largely unreported. In this review, we first attempt to understand why primary neural cell isolates were largely substituted for NSCs and MSCs in cell grafting studies. Next, we review the current knowledge on the immune mechanisms involved in the recognition and rejection of allogeneic and xenogeneic cellular grafts in the CNS. Finally, we propose strategies to reduce graft immunogenicity and to improve graft survival in order to design improved cell-based CNS therapies. Stem Cells Translational Medicine 2017;6:1434-1441.
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Affiliation(s)
- Chloé J Hoornaert
- Laboratory of Experimental Hematology, Faculty of Medicine and Health Sciences, University of Antwerp, Antwerp, Belgium.,Vaccine and Infectious Disease Institute (Vaxinfectio), Faculty of Medicine and Health Sciences, University of Antwerp, Antwerp, Belgium
| | - Debbie Le Blon
- Laboratory of Experimental Hematology, Faculty of Medicine and Health Sciences, University of Antwerp, Antwerp, Belgium.,Vaccine and Infectious Disease Institute (Vaxinfectio), Faculty of Medicine and Health Sciences, University of Antwerp, Antwerp, Belgium
| | - Alessandra Quarta
- Laboratory of Experimental Hematology, Faculty of Medicine and Health Sciences, University of Antwerp, Antwerp, Belgium.,Vaccine and Infectious Disease Institute (Vaxinfectio), Faculty of Medicine and Health Sciences, University of Antwerp, Antwerp, Belgium
| | - Jasmijn Daans
- Laboratory of Experimental Hematology, Faculty of Medicine and Health Sciences, University of Antwerp, Antwerp, Belgium.,Vaccine and Infectious Disease Institute (Vaxinfectio), Faculty of Medicine and Health Sciences, University of Antwerp, Antwerp, Belgium
| | - Herman Goossens
- Vaccine and Infectious Disease Institute (Vaxinfectio), Faculty of Medicine and Health Sciences, University of Antwerp, Antwerp, Belgium
| | - Zwi Berneman
- Laboratory of Experimental Hematology, Faculty of Medicine and Health Sciences, University of Antwerp, Antwerp, Belgium.,Vaccine and Infectious Disease Institute (Vaxinfectio), Faculty of Medicine and Health Sciences, University of Antwerp, Antwerp, Belgium
| | - Peter Ponsaerts
- Laboratory of Experimental Hematology, Faculty of Medicine and Health Sciences, University of Antwerp, Antwerp, Belgium.,Vaccine and Infectious Disease Institute (Vaxinfectio), Faculty of Medicine and Health Sciences, University of Antwerp, Antwerp, Belgium
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109
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Yang Y, Ye Y, Su X, He J, Bai W, He X. MSCs-Derived Exosomes and Neuroinflammation, Neurogenesis and Therapy of Traumatic Brain Injury. Front Cell Neurosci 2017; 11:55. [PMID: 28293177 PMCID: PMC5329010 DOI: 10.3389/fncel.2017.00055] [Citation(s) in RCA: 148] [Impact Index Per Article: 21.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2016] [Accepted: 02/14/2017] [Indexed: 12/19/2022] Open
Abstract
Exosomes are endosomal origin membrane-enclosed small vesicles (30-100 nm) that contain various molecular constituents including proteins, lipids, mRNAs and microRNAs. Accumulating studies demonstrated that exosomes initiated and regulated neuroinflammation, modified neurogenic niches and neurogenesis, and were even of potential significance in treating some neurological diseases. These tiny extracellular vesicles (EVs) can derive from some kinds of multipotent cells such as mesenchymal stem cells (MSCs) that have been confirmed to be a potentially promising therapy for traumatic brain injury (TBI) in experimental models and in preclinical studies. Nevertheless, subsequent studies demonstrated that the predominant mechanisms of MSCs's contributions to brain tissue repairment and functional recovery after TBI were not the cell replacement effects but likely the secretion-based paracrine effects produced by EVs such as MSCs-derived exosomes. These nanosized exosomes derived from MSCs cannot proliferate, are easier to preserve and transfer and have lower immunogenicity, compared with transplanted exogenous MSCs. These reports revealed that MSCs-derived exosomes might promise to be a new and valuable therapeutic strategy for TBI than MSCs themselves. However, the concrete mechanisms involved in the positive effects induced by MSCs-derived exosomes in TBI are still ambiguous. In this review, we intend to explore the potential effects of MSCs-derived exosomes on neuroinflammation and neurogenesis in TBI and, especially, on therapy.
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Affiliation(s)
- Yongxiang Yang
- Department of Neurosurgery, Xijing Hospital, Fourth Military Medical UniversityXi'an, China; Department of Neurosurgery, PLA 422nd HospitalZhanjiang, China
| | - Yuqin Ye
- Department of Neurosurgery, Xijing Hospital, Fourth Military Medical UniversityXi'an, China; Department of Neurosurgery, PLA 163rd Hospital (Second Affiliated Hospital of Hunan Normal University)Changsha, China
| | - Xinhong Su
- Department of Neurosurgery, Xijing Hospital, Fourth Military Medical University Xi'an, China
| | - Jun He
- Department of Neurosurgery, Xijing Hospital, Fourth Military Medical University Xi'an, China
| | - Wei Bai
- Department of Neurosurgery, Xijing Hospital, Fourth Military Medical University Xi'an, China
| | - Xiaosheng He
- Department of Neurosurgery, Xijing Hospital, Fourth Military Medical University Xi'an, China
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110
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Hamed SA. Brain injury with diabetes mellitus: evidence, mechanisms and treatment implications. Expert Rev Clin Pharmacol 2017; 10:409-428. [PMID: 28276776 DOI: 10.1080/17512433.2017.1293521] [Citation(s) in RCA: 104] [Impact Index Per Article: 14.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Affiliation(s)
- Sherifa A. Hamed
- Department of Neurology and Psychiatry, Assiut University Hospital , Assiut, Egypt
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111
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Yurie H, Ikeguchi R, Aoyama T, Kaizawa Y, Tajino J, Ito A, Ohta S, Oda H, Takeuchi H, Akieda S, Tsuji M, Nakayama K, Matsuda S. The efficacy of a scaffold-free Bio 3D conduit developed from human fibroblasts on peripheral nerve regeneration in a rat sciatic nerve model. PLoS One 2017; 12:e0171448. [PMID: 28192527 PMCID: PMC5305253 DOI: 10.1371/journal.pone.0171448] [Citation(s) in RCA: 77] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2016] [Accepted: 01/02/2017] [Indexed: 01/01/2023] Open
Abstract
BACKGROUND Although autologous nerve grafting is the gold standard treatment of peripheral nerve injuries, several alternative methods have been developed, including nerve conduits that use supportive cells. However, the seeding efficacy and viability of supportive cells injected in nerve grafts remain unclear. Here, we focused on a novel completely biological, tissue-engineered, scaffold-free conduit. METHODS We developed six scaffold-free conduits from human normal dermal fibroblasts using a Bio 3D Printer. Twelve adult male rats with immune deficiency underwent mid-thigh-level transection of the right sciatic nerve. The resulting 5-mm nerve gap was bridged using 8-mm Bio 3D conduits (Bio 3D group, n = 6) and silicone tube (silicone group, n = 6). Several assessments were conducted to examine nerve regeneration eight weeks post-surgery. RESULTS Kinematic analysis revealed that the toe angle to the metatarsal bone at the final segment of the swing phase was significantly higher in the Bio 3D group than the silicone group (-35.78 ± 10.68 versus -62.48 ± 6.15, respectively; p < 0.01). Electrophysiological studies revealed significantly higher compound muscle action potential in the Bio 3D group than the silicone group (53.60 ± 26.36% versus 2.93 ± 1.84%; p < 0.01). Histological and morphological studies revealed neural cell expression in all regions of the regenerated nerves and the presence of many well-myelinated axons in the Bio 3D group. The wet muscle weight of the tibialis anterior muscle was significantly higher in the Bio 3D group than the silicone group (0.544 ± 0.063 versus 0.396 ± 0.031, respectively; p < 0.01). CONCLUSIONS We confirmed that scaffold-free Bio 3D conduits composed entirely of fibroblast cells promote nerve regeneration in a rat sciatic nerve model.
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Affiliation(s)
- Hirofumi Yurie
- Department of Orthopaedic Surgery, Kyoto University Graduate School of Medicine, Kyoto, Japan
| | - Ryosuke Ikeguchi
- Department of Orthopaedic Surgery, Kyoto University Graduate School of Medicine, Kyoto, Japan
- * E-mail:
| | - Tomoki Aoyama
- Department of Physical Therapy, Human Health Sciences, Kyoto University Graduate School of Medicine, Kyoto, Japan
| | - Yukitoshi Kaizawa
- Department of Orthopaedic Surgery, Iseikai Yawata Chuo Hospital, Kyoto, Japan
| | - Junichi Tajino
- Department of Physical Therapy, Human Health Sciences, Kyoto University Graduate School of Medicine, Kyoto, Japan
| | - Akira Ito
- Department of Orthopaedic Surgery, Kyoto University Graduate School of Medicine, Kyoto, Japan
| | - Souichi Ohta
- Department of Orthopaedic Surgery, Kyoto University Graduate School of Medicine, Kyoto, Japan
| | - Hiroki Oda
- Department of Orthopaedic Surgery, Kyoto University Graduate School of Medicine, Kyoto, Japan
| | - Hisataka Takeuchi
- Department of Orthopaedic Surgery, Kyoto University Graduate School of Medicine, Kyoto, Japan
| | | | | | - Koichi Nakayama
- Department of Regenerative Medicine and Biomedical Engineering Faculty of Medicine, Saga University, Saga, Japan
| | - Shuichi Matsuda
- Department of Orthopaedic Surgery, Kyoto University Graduate School of Medicine, Kyoto, Japan
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112
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Argibay B, Trekker J, Himmelreich U, Beiras A, Topete A, Taboada P, Pérez-Mato M, Vieites-Prado A, Iglesias-Rey R, Rivas J, Planas AM, Sobrino T, Castillo J, Campos F. Intraarterial route increases the risk of cerebral lesions after mesenchymal cell administration in animal model of ischemia. Sci Rep 2017; 7:40758. [PMID: 28091591 PMCID: PMC5238501 DOI: 10.1038/srep40758] [Citation(s) in RCA: 67] [Impact Index Per Article: 9.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2016] [Accepted: 12/09/2016] [Indexed: 02/08/2023] Open
Abstract
Mesenchymal stem cells (MSCs) are a promising clinical therapy for ischemic stroke. However, critical parameters, such as the most effective administration route, remain unclear. Intravenous (i.v.) and intraarterial (i.a.) delivery routes have yielded varied outcomes across studies, potentially due to the unknown MSCs distribution. We investigated whether MSCs reached the brain following i.a. or i.v. administration after transient cerebral ischemia in rats, and evaluated the therapeutic effects of both routes. MSCs were labeled with dextran-coated superparamagnetic nanoparticles for magnetic resonance imaging (MRI) cell tracking, transmission electron microscopy and immunohistological analysis. MSCs were found in the brain following i.a. but not i.v. administration. However, the i.a. route increased the risk of cerebral lesions and did not improve functional recovery. The i.v. delivery is safe but MCS do not reach the brain tissue, implying that treatment benefits observed for this route are not attributable to brain MCS engrafting after stroke.
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Affiliation(s)
- Bárbara Argibay
- Clinical Neurosciences Research Laboratory, Clinical University Hospital, Health Research Institute of Santiago de Compostela (IDIS), Universidade de Santiago de Compostela, Santiago de Compostela, Spain
| | - Jesse Trekker
- IMEC, Department of Life Science Technology, Leuven 3001, Belgium.,Biomedical MRI, Department of Imaging and Pathology, KU Leuven, Leuven 3000, Belgium
| | - Uwe Himmelreich
- Biomedical MRI, Department of Imaging and Pathology, KU Leuven, Leuven 3000, Belgium
| | - Andrés Beiras
- Department of Morphological Sciences, Universidade de Santiago de Compostela, Santiago de Compostela, Spain
| | - Antonio Topete
- Grupo de Física de Coloides y Polímeros, Departamento de Física de la Materia Condensada, Universidade de Santiago de Compostela, Santiago de Compostela, Spain.,Departamento de Fisiología, Centro Universitario de Ciencias de la Salud, Universidad de Guadalajara, Guadalajara 44340, México
| | - Pablo Taboada
- Grupo de Física de Coloides y Polímeros, Departamento de Física de la Materia Condensada, Universidade de Santiago de Compostela, Santiago de Compostela, Spain
| | - María Pérez-Mato
- Clinical Neurosciences Research Laboratory, Clinical University Hospital, Health Research Institute of Santiago de Compostela (IDIS), Universidade de Santiago de Compostela, Santiago de Compostela, Spain
| | - Alba Vieites-Prado
- Clinical Neurosciences Research Laboratory, Clinical University Hospital, Health Research Institute of Santiago de Compostela (IDIS), Universidade de Santiago de Compostela, Santiago de Compostela, Spain
| | - Ramón Iglesias-Rey
- Clinical Neurosciences Research Laboratory, Clinical University Hospital, Health Research Institute of Santiago de Compostela (IDIS), Universidade de Santiago de Compostela, Santiago de Compostela, Spain
| | - José Rivas
- Applied Physics Department, Campus Vida, Universidade de Santiago de Compostela, Santiago de Compostela, Spain
| | - Anna M Planas
- Department of Brain Ischemia and Neurodegeneration, Institut d' Investigacions Biomèdiques de Barcelona (IIBB), Consejo Superior de Investigaciones Científicas (CSIC), Barcelona, Spain.,August Pi i Sunyer Biomedical Research Institute (IDIBAPS), Barcelona, Spain
| | - Tomás Sobrino
- Clinical Neurosciences Research Laboratory, Clinical University Hospital, Health Research Institute of Santiago de Compostela (IDIS), Universidade de Santiago de Compostela, Santiago de Compostela, Spain
| | - José Castillo
- Clinical Neurosciences Research Laboratory, Clinical University Hospital, Health Research Institute of Santiago de Compostela (IDIS), Universidade de Santiago de Compostela, Santiago de Compostela, Spain
| | - Francisco Campos
- Clinical Neurosciences Research Laboratory, Clinical University Hospital, Health Research Institute of Santiago de Compostela (IDIS), Universidade de Santiago de Compostela, Santiago de Compostela, Spain
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113
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Abstract
Traumatic brain injury (TBI) is one of the major causes of death and disability worldwide. No effective treatment has been identified from clinical trials. Compelling evidence exists that treatment with mesenchymal stem cells (MSCs) exerts a substantial therapeutic effect after experimental brain injury. In addition to their soluble factors, therapeutic effects of MSCs may be attributed to their generation and release of exosomes. Exosomes are endosomal origin small-membrane nano-sized vesicles generated by almost all cell types. Exosomes play a pivotal role in intercellular communication. Intravenous delivery of MSC-derived exosomes improves functional recovery and promotes neuroplasticity in rats after TBI. Therapeutic effects of exosomes derive from the exosome content, especially microRNAs (miRNAs). miRNAs are small non-coding regulatory RNAs and play an important role in posttranscriptional regulation of genes. Compared with their parent cells, exosomes are more stable and can cross the blood-brain barrier. They have reduced the safety risks inherent in administering viable cells such as the risk of occlusion in microvasculature or unregulated growth of transplanted cells. Developing a cell-free exosome-based therapy may open up a novel approach to enhancing multifaceted aspects of neuroplasticity and to amplifying neurological recovery, potentially for a variety of neural injuries and neurodegenerative diseases. This review discusses the most recent knowledge of exosome therapies for TBI, their associated challenges and opportunities.
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Affiliation(s)
- Ye Xiong
- Department of Neurosurgery, Henry Ford Hospital, Detroit, MI, USA
| | - Asim Mahmood
- Department of Neurosurgery, Henry Ford Hospital, Detroit, MI, USA
| | - Michael Chopp
- Department of Neurology, Henry Ford Hospital, Detroit, MI, USA; Department of Physics, Oakland University, Rochester, MI, USA
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114
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Zhang R, Zhang Z, Chopp M. Function of neural stem cells in ischemic brain repair processes. J Cereb Blood Flow Metab 2016; 36:2034-2043. [PMID: 27742890 PMCID: PMC5363673 DOI: 10.1177/0271678x16674487] [Citation(s) in RCA: 51] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/25/2016] [Revised: 08/19/2016] [Accepted: 08/24/2016] [Indexed: 12/21/2022]
Abstract
Hypoxic/ischemic injury is the single most important cause of disabilities in infants, while stroke remains a leading cause of morbidity in children and adults around the world. The injured brain has limited repair capacity, and thereby only modest improvement of neurological function is evident post injury. In rodents, embryonic neural stem cells in the ventricular zone generate cortical neurons, and adult neural stem cells in the ventricular-subventricular zone of the lateral ventricle produce new neurons through animal life. In addition to generation of new neurons, neural stem cells contribute to oligodendrogenesis. Neurogenesis and oligodendrogenesis are essential for repair of injured brain. Much progress has been made in preclinical studies on elucidating the cellular and molecular mechanisms that control and coordinate neurogenesis and oligodendrogenesis in perinatal hypoxic/ischemic injury and the adult ischemic brain. This article will review these findings with a focus on the ventricular-subventricular zone neurogenic niche and discuss potential applications to facilitate endogenous neurogenesis and thereby to improve neurological function post perinatal hypoxic/ischemic injury and stroke.
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Affiliation(s)
- Ruilan Zhang
- Department of Neurology, Henry Ford Hospital, Detroit, USA
| | | | - Michael Chopp
- Department of Neurology, Henry Ford Hospital, Detroit, USA
- Department of Physics, Oakland University, Rochester, USA
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115
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Huda F, Fan Y, Suzuki M, Konno A, Matsuzaki Y, Takahashi N, Chan JKY, Hirai H. Fusion of Human Fetal Mesenchymal Stem Cells with "Degenerating" Cerebellar Neurons in Spinocerebellar Ataxia Type 1 Model Mice. PLoS One 2016; 11:e0164202. [PMID: 27802273 PMCID: PMC5089746 DOI: 10.1371/journal.pone.0164202] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2016] [Accepted: 09/21/2016] [Indexed: 12/11/2022] Open
Abstract
Mesenchymal stem cells (MSCs) migrate to damaged tissues, where they participate in tissue repair. Human fetal MSCs (hfMSCs), compared with adult MSCs, have higher proliferation rates, a greater differentiation capacity and longer telomeres with reduced senescence. Therefore, transplantation of quality controlled hfMSCs is a promising therapeutic intervention. Previous studies have shown that intravenous or intracortical injections of MSCs result in the emergence of binucleated cerebellar Purkinje cells (PCs) containing an MSC-derived marker protein in mice, thus suggesting a fusion event. However, transdifferentiation of MSCs into PCs or transfer of a marker protein from an MSC to a PC cannot be ruled out. In this study, we unequivocally demonstrated the fusion of hfMSCs with murine PCs through a tetracycline-regulated (Tet-off) system with or without a Cre-dependent genetic inversion switch (flip-excision; FLEx). In the FLEx-Tet system, we performed intra-cerebellar injection of viral vectors expressing tetracycline transactivator (tTA) and Cre recombinase into either non-symptomatic (4-week-old) or clearly symptomatic (6–8-month-old) spinocerebellar ataxia type 1 (SCA1) mice. Then, the mice received an injection of 50,000 genetically engineered hfMSCs that expressed GFP only in the presence of Cre recombinase and tTA. We observed a significant emergence of GFP-expressing PCs and interneurons in symptomatic, but not non-symptomatic, SCA1 mice 2 weeks after the MSC injection. These results, together with the results obtained using age-matched wild-type mice, led us to conclude that hfMSCs have the potential to preferentially fuse with degenerating PCs and interneurons but not with healthy neurons.
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Affiliation(s)
- Fathul Huda
- Department of Neurophysiology & Neural Repair, Gunma University Graduate School of Medicine, Maebashi, Gunma 371–8511, Japan
- Physiology Division, Department of Anatomy Physiology and Cell Biology, Faculty of Medicine Universitas Padjadjaran, Bandung, 40161, Indonesia
| | - Yiping Fan
- Department of Reproductive Medicine, KK Women's and Children's Hospital, 229899, Singapore
- Experimental Fetal Medicine Group, Department of Obstetrics and Gynaecology, Yong Loo Lin School of Medicine, National University Health System, 119228, Singapore
| | - Mamiko Suzuki
- Department of Neurophysiology & Neural Repair, Gunma University Graduate School of Medicine, Maebashi, Gunma 371–8511, Japan
| | - Ayumu Konno
- Department of Neurophysiology & Neural Repair, Gunma University Graduate School of Medicine, Maebashi, Gunma 371–8511, Japan
| | - Yasunori Matsuzaki
- Department of Neurophysiology & Neural Repair, Gunma University Graduate School of Medicine, Maebashi, Gunma 371–8511, Japan
| | - Nobutaka Takahashi
- Department of Neurophysiology & Neural Repair, Gunma University Graduate School of Medicine, Maebashi, Gunma 371–8511, Japan
| | - Jerry K. Y. Chan
- Department of Reproductive Medicine, KK Women's and Children's Hospital, 229899, Singapore
- Experimental Fetal Medicine Group, Department of Obstetrics and Gynaecology, Yong Loo Lin School of Medicine, National University Health System, 119228, Singapore
- Cancer and Stem Cell Biology Program, Duke-NUS Graduate Medical School, 169857, Singapore
| | - Hirokazu Hirai
- Department of Neurophysiology & Neural Repair, Gunma University Graduate School of Medicine, Maebashi, Gunma 371–8511, Japan
- * E-mail:
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116
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Feasibility and Efficiency of Human Bone Marrow Stromal Cell Culture with Allogeneic Platelet Lysate-Supplementation for Cell Therapy against Stroke. Stem Cells Int 2016; 2016:6104780. [PMID: 27840648 PMCID: PMC5093274 DOI: 10.1155/2016/6104780] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2016] [Revised: 09/16/2016] [Accepted: 09/29/2016] [Indexed: 12/17/2022] Open
Abstract
Currently, there is increasing interest in human bone marrow stromal cells (hBMSCs) as regeneration therapy against cerebral stroke. The aim of the present study was to evaluate the feasibility and validity of hBMSC cultures with allogeneic platelet lysates (PLs). Platelet concentrates (PC) were harvested from healthy volunteers and made into single donor-derived PL (sPL). The PL mixtures (mPL) were made from three different sPL. Some growth factors and platelet cell surface antigens were detected by enzyme-linked immunosorbent assay (ELISA). The hBMSCs cultured with 10% PL were analyzed for their proliferative potential, surface markers, and karyotypes. The cells were incubated with superparamagnetic iron oxide (SPIO) agents and injected into a pig brain. MRI and histological analysis were performed. Consequently, nine lots of sPL and three mPL were prepared. ELISA analysis showed that PL contained adequate growth factors and a particle of platelet surface antigens. Cell proliferation capacity of PLs was equivalent to or higher than that of fetal calf serum (FCS). No contradiction in cell surface markers and no chromosomal aberrations were found. The MRI detected the distribution of SPIO-labeled hBMSCs in the pig brain. In summary, the hBMSCs cultured with allogeneic PL are suitable for cell therapy against stroke.
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117
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Moore TL, Pessina MA, Finklestein SP, Killiany RJ, Bowley B, Benowitz L, Rosene DL. Inosine enhances recovery of grasp following cortical injury to the primary motor cortex of the rhesus monkey. Restor Neurol Neurosci 2016; 34:827-48. [PMID: 27497459 PMCID: PMC6503840 DOI: 10.3233/rnn-160661] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
BACKGROUND Inosine, a naturally occurring purine nucleoside, has been shown to stimulate axonal growth in cell culture and promote corticospinal tract axons to sprout collateral branches after stroke, spinal cord injury and TBI in rodent models. OBJECTIVE To explore the effects of inosine on the recovery of motor function following cortical injury in the rhesus monkey. METHODS After being trained on a test of fine motor function of the hand, monkeys received a lesion limited to the area of the hand representation in primary motor cortex. Beginning 24 hours after this injury and continuing daily thereafter, monkeys received orally administered inosine (500 mg) or placebo. Retesting of motor function began on the 14th day after injury and continued for 12 weeks. RESULTS During the first 14 days after surgery, there was evidence of significant recovery within the inosine-treated group on measures of fine motor function of the hand, measures of hand strength and digit flexion. While there was no effect of treatment on the time to retrieve a reward, the treated monkeys returned to asymptotic levels of grasp performance significantly faster than the untreated monkeys. Additionally, the treated monkeys evidenced a greater degree of recovery in terms of maturity of grasp pattern. CONCLUSION These findings demonstrate that inosine can enhance recovery of function following cortical injury in monkeys.
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Affiliation(s)
- Tara L. Moore
- Department of Anatomy & Neurobiology, Boston University School of Medicine, Boston, MA, USA
- Department of Neurology, Boston University School of Medicine, Boston, MA, USA
| | - Monica A. Pessina
- Department of Anatomy & Neurobiology, Boston University School of Medicine, Boston, MA, USA
| | | | - Ronald J. Killiany
- Department of Anatomy & Neurobiology, Boston University School of Medicine, Boston, MA, USA
| | - Bethany Bowley
- Department of Anatomy & Neurobiology, Boston University School of Medicine, Boston, MA, USA
| | - Larry Benowitz
- Department of Neurosurgery and F.M. Kirby Neurobiology Center, Boston Children’s Hospital, Harvard Medical School, Boston, MA, USA
| | - Douglas L. Rosene
- Department of Anatomy & Neurobiology, Boston University School of Medicine, Boston, MA, USA
- Yerkes National Primate Research Center, Emory University, Atlanta, GA, USA
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118
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Zhang Y, Chopp M, Zhang ZG, Katakowski M, Xin H, Qu C, Ali M, Mahmood A, Xiong Y. Systemic administration of cell-free exosomes generated by human bone marrow derived mesenchymal stem cells cultured under 2D and 3D conditions improves functional recovery in rats after traumatic brain injury. Neurochem Int 2016; 111:69-81. [PMID: 27539657 DOI: 10.1016/j.neuint.2016.08.003] [Citation(s) in RCA: 258] [Impact Index Per Article: 32.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2016] [Revised: 07/22/2016] [Accepted: 08/10/2016] [Indexed: 12/13/2022]
Abstract
Multipotent human bone marrow derived mesenchymal stem cells (hMSCs) improve functional outcome after experimental traumatic brain injury (TBI). The present study was designed to investigate whether systemic administration of cell-free exosomes generated from hMSCs cultured in 2-dimensional (2D) conventional conditions or in 3-dimensional (3D) collagen scaffolds promote functional recovery and neurovascular remodeling in rats after TBI. Wistar rats were subjected to TBI induced by controlled cortical impact; 24 h later tail vein injection of exosomes derived from hMSCs cultured under 2D or 3D conditions or an equal number of liposomes as a treatment control were performed. The modified Morris water maze, neurological severity score and footfault tests were employed to evaluate cognitive and sensorimotor functional recovery. Animals were sacrificed at 35 days after TBI. Histological and immunohistochemical analyses were performed for measurements of lesion volume, neurovascular remodeling (angiogenesis and neurogenesis), and neuroinflammation. Compared with liposome-treated control, exosome-treatments did not reduce lesion size but significantly improved spatial learning at 33-35 days measured by the Morris water maze test, and sensorimotor functional recovery, i.e., reduced neurological deficits and footfault frequency, observed at 14-35 days post injury (p < 0.05). Exosome treatments significantly increased the number of newborn endothelial cells in the lesion boundary zone and dentate gyrus, and significantly increased the number of newborn mature neurons in the dentate gyrus as well as reduced neuroinflammation. Exosomes derived from hMSCs cultured in 3D scaffolds provided better outcome in spatial learning than exosomes from hMSCs cultured in the 2D condition. In conclusion, hMSC-generated exosomes significantly improve functional recovery in rats after TBI, at least in part, by promoting endogenous angiogenesis and neurogenesis and reducing neuroinflammation. Thus, exosomes derived from hMSCs may be a novel cell-free therapy for TBI, and hMSC-scaffold generated exosomes may selectively enhance spatial learning.
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Affiliation(s)
- Yanlu Zhang
- Department of Neurosurgery, Henry Ford Hospital, Detroit, MI, USA
| | - Michael Chopp
- Department of Neurology, Henry Ford Hospital, Detroit, MI, USA; Department of Physics, Oakland University, Rochester, MI, USA
| | | | - Mark Katakowski
- Department of Neurology, Henry Ford Hospital, Detroit, MI, USA
| | - Hongqi Xin
- Department of Neurology, Henry Ford Hospital, Detroit, MI, USA
| | - Changsheng Qu
- Department of Neurosurgery, Henry Ford Hospital, Detroit, MI, USA
| | - Meser Ali
- Department of Radiology, Henry Ford Hospital, Detroit, MI, USA
| | - Asim Mahmood
- Department of Neurosurgery, Henry Ford Hospital, Detroit, MI, USA
| | - Ye Xiong
- Department of Neurosurgery, Henry Ford Hospital, Detroit, MI, USA.
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119
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Restoration of Polyamine Metabolic Patterns in In Vivo and In Vitro Model of Ischemic Stroke following Human Mesenchymal Stem Cell Treatment. Stem Cells Int 2016; 2016:4612531. [PMID: 27413379 PMCID: PMC4927980 DOI: 10.1155/2016/4612531] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2015] [Revised: 04/22/2016] [Accepted: 05/04/2016] [Indexed: 11/17/2022] Open
Abstract
We investigated changes in PA levels by the treatment of human bone-marrow-derived mesenchymal stem cells (hBM-MSCs) in ischemic stroke in rat brain model and in cultured neuronal SH-SY5Y cells exposed to oxygen-glucose deprivation (OGD). In ischemic rat model, transient middle cerebral artery occlusion (MCAo) was performed for 2 h, followed by intravenous transplantation of hBM-MSCs or phosphate-buffered saline (PBS) the day following MCAo. Metabolic profiling analysis of PAs was examined in brains from three groups: control rats, PBS-treated MCAo rats (MCAo), and hBM-MSCs-treated MCAo rats (MCAo + hBM-MSCs). In ischemic cell model, SH-SY5Y cells were exposed to OGD for 24 h, treated with hBM-MSCs (OGD + hBM-MSCs) prior to continued aerobic incubation, and then samples were collected after coculture for 72 h. In the in vivo MCAo ischemic model, levels of some PAs in brain samples of the MCAo and MCAo + hBM-MSCs groups were significantly different from those of the control group. In particular, putrescine, cadaverine, and spermidine in brain tissues of the MCAo + hBM-MSCs group were significantly reduced in comparison to those in the MCAo group. In the in vitro OGD system, N1-acetylspermidine, spermidine, N1-acetylspermine, and spermine in cells of the OGD + hBM-MSCs group were significantly reduced compared to those of OGD group.
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120
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Winderlich JN, Kremer KL, Koblar SA. Adult human dental pulp stem cells promote blood-brain barrier permeability through vascular endothelial growth factor-a expression. J Cereb Blood Flow Metab 2016; 36:1087-97. [PMID: 26661186 PMCID: PMC4908623 DOI: 10.1177/0271678x15608392] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/27/2015] [Accepted: 06/30/2015] [Indexed: 01/09/2023]
Abstract
Stem cell therapy is a promising new treatment option for stroke. Intravascular administration of stem cells is a valid approach as stem cells have been shown to transmigrate the blood-brain barrier. The mechanism that causes this effect has not yet been elucidated. We hypothesized that stem cells would mediate localized discontinuities in the blood-brain barrier, which would allow passage into the brain parenchyma. Here, we demonstrate that adult human dental pulp stem cells express a soluble factor that increases permeability across an in vitro model of the blood-brain barrier. This effect was shown to be the result of vascular endothelial growth factor-a. The effect could be amplified by exposing dental pulp stem cell to stromal-derived factor 1, which stimulates vascular endothelial growth factor-a expression. These findings support the use of dental pulp stem cell in therapy for stroke.
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Affiliation(s)
- Joshua N Winderlich
- Stroke Research Programme, School of Medicine, University of Adelaide, Adelaide, Australia Centre for Stem Cell Research, Robinson Institute, Adelaide, Australia
| | - Karlea L Kremer
- Stroke Research Programme, School of Medicine, University of Adelaide, Adelaide, Australia Centre for Stem Cell Research, Robinson Institute, Adelaide, Australia
| | - Simon A Koblar
- Stroke Research Programme, School of Medicine, University of Adelaide, Adelaide, Australia Centre for Stem Cell Research, Robinson Institute, Adelaide, Australia Department of Neurology, Queen Elizabeth Hospital, Woodville, Australia
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121
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Su WT, Pan YJ. Stem cells from human exfoliated deciduous teeth differentiate toward neural cells in a medium dynamically cultured with Schwann cells in a series of polydimethylsiloxanes scaffolds. J Neural Eng 2016; 13:046005. [DOI: 10.1088/1741-2560/13/4/046005] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
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122
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Li L, Chopp M, Ding G, Qu C, Nejad-Davarani SP, Davoodi-Bojd E, Li Q, Mahmood A, Jiang Q. Diffusion-Derived Magnetic Resonance Imaging Measures of Longitudinal Microstructural Remodeling Induced by Marrow Stromal Cell Therapy after Traumatic Brain Injury. J Neurotrauma 2016; 34:182-191. [PMID: 26993214 DOI: 10.1089/neu.2015.4315] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
Using magnetic resonance imaging (MRI) and an animal model of traumatic brain injury (TBI), we investigated the capacity and sensitivity of diffusion-derived measures, fractional anisotropy (FA), and diffusion entropy, to longitudinally identify structural plasticity in the injured brain in response to the transplantation of human bone marrow stromal cells (hMSCs). Male Wistar rats (300-350g, n = 30) were subjected to controlled cortical impact TBI. At 6 h or 1 week post-injury, these rats were intravenously injected with 1 mL of saline (at 6 h or 1 week, n = 5/group) or with hMSCs in suspension (∼3 × 106 hMSCs, at 6 h or 1 week, n = 10/group). In vivo MRI measurements and sensorimotor function estimates were performed on all animals pre-injury, 1 day post-injury, and weekly for 3 weeks post-injury. Bielschowsky's silver and Luxol fast blue staining were used to reveal the axon and myelin status, respectively, with and without cell treatment after TBI. Based on image data and histological observation, regions of interest encompassing the structural alterations were made and the values of FA and entropy were monitored in these specific brain regions. Our data demonstrate that administration of hMSCs after TBI leads to enhanced white matter reorganization particularly along the boundary of contusional lesion, which can be identified by both FA and entropy. Compared with the therapy performed at 1 week post-TBI, cell intervention executed at 6 h expedites the brain remodeling process and results in an earlier functional recovery. Although FA and entropy present a similar capacity to dynamically detect the microstructural changes in the tissue regions with predominant orientation of fiber tracts, entropy exhibits a sensitivity superior to that of FA, in probing the structural alterations in the tissue areas with complex fiber patterns.
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Affiliation(s)
- Lian Li
- 1 Department of Neurology, Henry Ford Hospital , Detroit, Michigan
| | - Michael Chopp
- 1 Department of Neurology, Henry Ford Hospital , Detroit, Michigan.,2 Department of Physics, Oakland University , Rochester, Michigan
| | - Guangliang Ding
- 1 Department of Neurology, Henry Ford Hospital , Detroit, Michigan
| | - Changsheng Qu
- 3 Department of Neurosurgery, Henry Ford Hospital , Detroit, Michigan
| | | | | | - Qingjiang Li
- 1 Department of Neurology, Henry Ford Hospital , Detroit, Michigan
| | - Asim Mahmood
- 3 Department of Neurosurgery, Henry Ford Hospital , Detroit, Michigan
| | - Quan Jiang
- 1 Department of Neurology, Henry Ford Hospital , Detroit, Michigan.,2 Department of Physics, Oakland University , Rochester, Michigan
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Nagpal A, Kremer KL, Hamilton-Bruce MA, Kaidonis X, Milton AG, Levi C, Shi S, Carey L, Hillier S, Rose M, Zacest A, Takhar P, Koblar SA. TOOTH (The Open study Of dental pulp stem cell Therapy in Humans): Study protocol for evaluating safety and feasibility of autologous human adult dental pulp stem cell therapy in patients with chronic disability after stroke. Int J Stroke 2016; 11:575-85. [PMID: 27030504 DOI: 10.1177/1747493016641111] [Citation(s) in RCA: 37] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2015] [Accepted: 12/11/2015] [Indexed: 12/24/2022]
Abstract
RATIONALE Stroke represents a significant global disease burden. As of 2015, there is no chemical or biological therapy proven to actively enhance neurological recovery during the chronic phase post-stroke. Globally, cell-based therapy in stroke is at the stage of clinical translation and may improve neurological function through various mechanisms such as neural replacement, neuroprotection, angiogenesis, immuno-modulation, and neuroplasticity. Preclinical evidence in a rodent model of middle cerebral artery ischemic stroke as reported in four independent studies indicates improvement in neurobehavioral function with adult human dental pulp stem cell therapy. Human adult dental pulp stem cells present an exciting potential therapeutic option for improving post-stroke disability. AIMS TOOTH (The Open study Of dental pulp stem cell Therapy in Humans) will investigate the use of autologous stem cell therapy for stroke survivors with chronic disability, with the following objectives: (a) determine the maximum tolerable dose of autologous dental pulp stem cell therapy; (b) define that dental pulp stem cell therapy at the maximum tolerable dose is safe and feasible in chronic stroke; and (c) estimate the parameters of efficacy required to design a future Phase 2/3 clinical trial. METHODS AND DESIGN TOOTH is a Phase 1, open-label, single-blinded clinical trial with a pragmatic design that comprises three stages: Stage 1 will involve the selection of 27 participants with middle cerebral artery ischemic stroke and the commencement of autologous dental pulp stem cell isolation, growth, and testing in sequential cohorts (n = 3). Stage 2 will involve the transplantation of dental pulp stem cell in each cohort of participants with an ascending dose and subsequent observation for a 6-month period for any dental pulp stem cell-related adverse events. Stage 3 will investigate the neurosurgical intervention of the maximum tolerable dose of autologous dental pulp stem cell followed by 9 weeks of intensive task-specific rehabilitation. Advanced magnetic resonance and positron emission tomography neuro-imaging, and clinical assessment will be employed to probe any change afforded by stem cell therapy in combination with rehabilitation. SAMPLE SIZE ESTIMATES Nine participants will step-wise progress in Stage 2 to a dose of up to 10 million dental pulp stem cell, employing a cumulative 3 + 3 statistical design with low starting stem cell dose and subsequent dose escalation, assuming that an acceptable probability of dose-limiting complications is between 1 in 6 (17%) and 1 in 3 (33%) of patients. In Stage 3, another 18 participants will receive an intracranial injection with the maximum tolerable dose of dental pulp stem cell. OUTCOMES The primary outcomes to be measured are safety and feasibility of intracranial administration of autologous human adult DPSC in patients with chronic stroke and determination of the maximum tolerable dose in human subjects. Secondary outcomes include estimation of the measures of effectiveness required to design a future Phase 2/3 clinical trial.
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Affiliation(s)
- Anjali Nagpal
- School of Medicine, The University of Adelaide, South Australian Health and Medical Research Institute (SAHMRI), Adelaide, South Australia
| | - Karlea L Kremer
- School of Medicine, The University of Adelaide, South Australian Health and Medical Research Institute (SAHMRI), Adelaide, South Australia
| | - Monica A Hamilton-Bruce
- Neurology Department, The Queen Elizabeth Hospital, Woodville, South Australia School of Medicine, University of Adelaide, Adelaide, South Australia
| | - Xenia Kaidonis
- School of Medicine, The University of Adelaide, South Australian Health and Medical Research Institute (SAHMRI), Adelaide, South Australia
| | - Austin G Milton
- Neurology Department, The Queen Elizabeth Hospital, Woodville, South Australia
| | - Christopher Levi
- Hunter Medical Research Institute, University of Newcastle, New South Wales, Australia
| | - Songtao Shi
- School of Dental Medicine, University of Pennsylvania, Philadelphia, USA
| | - Leeanne Carey
- Neurorehabilitation and Recovery research group, Stroke Division, Florey Institute of Neuroscience and Mental Health La Trobe University, Melbourne, Victoria, Australia School of Allied Health, La Trobe University, Melbourne, Australia
| | - Susan Hillier
- Health Sciences Divisional Office School of Health Sciences, University of South Australia, Adelaide, South Australia
| | - Miranda Rose
- School of Allied Health, La Trobe University, Melbourne, Australia
| | - Andrew Zacest
- Department of Neurosurgery, Royal Adelaide Hospital, Adelaide, South Australia
| | - Parabjit Takhar
- Molecular Imaging and Therapy Research Unit, South Australian Health and Medical Research Institute, Adelaide, South Australia
| | - Simon A Koblar
- School of Medicine, University of Adelaide, Adelaide, South Australia SAHMRI & Basil Hetzel Institute, The Queen Elizabeth Hospital, Woodville, South Australia
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124
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Exosomes Derived from Mesenchymal Stromal Cells Promote Axonal Growth of Cortical Neurons. Mol Neurobiol 2016; 54:2659-2673. [PMID: 26993303 DOI: 10.1007/s12035-016-9851-0] [Citation(s) in RCA: 214] [Impact Index Per Article: 26.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2016] [Accepted: 03/09/2016] [Indexed: 02/07/2023]
Abstract
Treatment of brain injury with exosomes derived from mesenchymal stromal cells (MSCs) enhances neurite growth. However, the direct effect of exosomes on axonal growth and molecular mechanisms underlying exosome-enhanced neurite growth are not known. Using primary cortical neurons cultured in a microfluidic device, we found that MSC-exosomes promoted axonal growth, whereas attenuation of argonaut 2 protein, one of the primary microRNA (miRNA) machinery proteins, in MSC-exosomes abolished their effect on axonal growth. Both neuronal cell bodies and axons internalized MSC-exosomes, which was blocked by botulinum neurotoxins (BoNTs) that cleave proteins of the soluble N-ethylmaleimide-sensitive factor attachment protein receptor (SNARE) complex. Moreover, tailored MSC-exosomes carrying elevated miR-17-92 cluster further enhanced axonal growth compared to native MSC-exosomes. Quantitative RT-PCR and Western blot analysis showed that the tailored MSC-exosomes increased levels of individual members of this cluster and activated the PTEN/mTOR signaling pathway in recipient neurons, respectively. Together, our data demonstrate that native MSC-exosomes promote axonal growth while the tailored MSC-exosomes can further boost this effect and that tailored exosomes can deliver their selective cargo miRNAs into and activate their target signals in recipient neurons. Neuronal internalization of MSC-exosomes is mediated by the SNARE complex. This study reveals molecular mechanisms that contribute to MSC-exosome-promoted axonal growth, which provides a potential therapeutic strategy to enhance axonal growth.
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125
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Abstract
Restorative cell-based therapies for experimental brain injury, such as stroke and traumatic brain injury, substantially improve functional outcome. We discuss and review state of the art magnetic resonance imaging methodologies and their applications related to cell-based treatment after brain injury. We focus on the potential of magnetic resonance imaging technique and its associated challenges to obtain useful new information related to cell migration, distribution, and quantitation, as well as vascular and neuronal remodeling in response to cell-based therapy after brain injury. The noninvasive nature of imaging might more readily help with translation of cell-based therapy from the laboratory to the clinic.
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Affiliation(s)
- Quan Jiang
- Department of Neurology, Henry Ford Hospital, Detroit, MI, USA
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126
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Ding G, Chen J, Chopp M, Li L, Yan T, Li Q, Cui C, Davarani SPN, Jiang Q. Cell Treatment for Stroke in Type Two Diabetic Rats Improves Vascular Permeability Measured by MRI. PLoS One 2016; 11:e0149147. [PMID: 26900843 PMCID: PMC4762715 DOI: 10.1371/journal.pone.0149147] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2015] [Accepted: 01/27/2016] [Indexed: 01/02/2023] Open
Abstract
Treatment of stroke with bone marrow stromal cells (BMSC) significantly enhances brain remodeling and improves neurological function in non-diabetic stroke rats. Diabetes is a major risk factor for stroke and induces neurovascular changes which may impact stroke therapy. Thus, it is necessary to test our hypothesis that the treatment of stroke with BMSC has therapeutic efficacy in the most common form of diabetes, type 2 diabetes mellitus (T2DM). T2DM was induced in adult male Wistar rats by administration of a high fat diet in combination with a single intraperitoneal injection (35mg/kg) of streptozotocin. These rats were then subjected to 2h of middle cerebral artery occlusion (MCAo). T2DM rats received BMSC (5x106, n = 8) or an equal volume of phosphate-buffered saline (PBS) (n = 8) via tail-vein injection at 3 days after MCAo. MRI was performed one day and then weekly for 5 weeks post MCAo for all rats. Compared with vehicle treated control T2DM rats, BMSC treatment of stroke in T2DM rats significantly (p<0.05) decreased blood-brain barrier disruption starting at 1 week post stroke measured using contrast enhanced T1-weighted imaging with gadopentetate, and reduced cerebral hemorrhagic spots starting at 3 weeks post stroke measured using susceptibility weighted imaging, although BMSC treatment did not reduce the ischemic lesion volumes as demarcated by T2 maps. These MRI measurements were consistent with histological data. Thus, BMSC treatment of stroke in T2DM rats initiated at 3 days after stroke significantly reduced ischemic vascular damage, although BMSC treatment did not change infarction volume in T2DM rats, measured by MRI.
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Affiliation(s)
- Guangliang Ding
- Department of Neurology, Henry Ford Hospital, 2799 West Grand Boulevard, Detroit, Michigan, 48202, United States of America
| | - Jieli Chen
- Department of Neurology, Henry Ford Hospital, 2799 West Grand Boulevard, Detroit, Michigan, 48202, United States of America
| | - Michael Chopp
- Department of Neurology, Henry Ford Hospital, 2799 West Grand Boulevard, Detroit, Michigan, 48202, United States of America
- Department of Physics, Oakland University, Rochester, Michigan, 48309, United States of America
| | - Lian Li
- Department of Neurology, Henry Ford Hospital, 2799 West Grand Boulevard, Detroit, Michigan, 48202, United States of America
| | - Tao Yan
- Department of Neurology, Henry Ford Hospital, 2799 West Grand Boulevard, Detroit, Michigan, 48202, United States of America
- Department of Neurology, Tianjin Medical University General Hospital, Tianjin, 300052, China
| | - Qingjiang Li
- Department of Neurology, Henry Ford Hospital, 2799 West Grand Boulevard, Detroit, Michigan, 48202, United States of America
| | - Chengcheng Cui
- Department of Neurology, Henry Ford Hospital, 2799 West Grand Boulevard, Detroit, Michigan, 48202, United States of America
| | - Siamak P. N. Davarani
- Department of Neurology, Henry Ford Hospital, 2799 West Grand Boulevard, Detroit, Michigan, 48202, United States of America
| | - Quan Jiang
- Department of Neurology, Henry Ford Hospital, 2799 West Grand Boulevard, Detroit, Michigan, 48202, United States of America
- * E-mail:
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127
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Iraci N, Leonardi T, Gessler F, Vega B, Pluchino S. Focus on Extracellular Vesicles: Physiological Role and Signalling Properties of Extracellular Membrane Vesicles. Int J Mol Sci 2016; 17:171. [PMID: 26861302 PMCID: PMC4783905 DOI: 10.3390/ijms17020171] [Citation(s) in RCA: 199] [Impact Index Per Article: 24.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2015] [Accepted: 09/24/2015] [Indexed: 02/06/2023] Open
Abstract
Extracellular vesicles (EVs) are a heterogeneous population of secreted membrane vesicles, with distinct biogenesis routes, biophysical properties and different functions both in physiological conditions and in disease. The release of EVs is a widespread biological process, which is conserved across species. In recent years, numerous studies have demonstrated that several bioactive molecules are trafficked with(in) EVs, such as microRNAs, mRNAs, proteins and lipids. The understanding of their final impact on the biology of specific target cells remains matter of intense debate in the field. Also, EVs have attracted great interest as potential novel cell-free therapeutics. Here we describe the proposed physiological and pathological functions of EVs, with a particular focus on their molecular content. Also, we discuss the advances in the knowledge of the mechanisms regulating the secretion of EV-associated molecules and the specific pathways activated upon interaction with the target cell, highlighting the role of EVs in the context of the immune system and as mediators of the intercellular signalling in the brain.
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Affiliation(s)
- Nunzio Iraci
- Wellcome Trust-Medical Research Council Stem Cell Institute, Clifford Allbutt Building-Cambridge Biosciences Campus, Department of Clinical Neurosciences, and NIHR Biomedical Research Centre, University of Cambridge, Hills Road CB2 0PY, UK.
| | - Tommaso Leonardi
- Wellcome Trust-Medical Research Council Stem Cell Institute, Clifford Allbutt Building-Cambridge Biosciences Campus, Department of Clinical Neurosciences, and NIHR Biomedical Research Centre, University of Cambridge, Hills Road CB2 0PY, UK.
- EMBL-European Bioinformatics Institute, Wellcome Trust Genome Campus, Hinxton CB10 1SD, UK.
| | - Florian Gessler
- Wellcome Trust-Medical Research Council Stem Cell Institute, Clifford Allbutt Building-Cambridge Biosciences Campus, Department of Clinical Neurosciences, and NIHR Biomedical Research Centre, University of Cambridge, Hills Road CB2 0PY, UK.
| | - Beatriz Vega
- Wellcome Trust-Medical Research Council Stem Cell Institute, Clifford Allbutt Building-Cambridge Biosciences Campus, Department of Clinical Neurosciences, and NIHR Biomedical Research Centre, University of Cambridge, Hills Road CB2 0PY, UK.
| | - Stefano Pluchino
- Wellcome Trust-Medical Research Council Stem Cell Institute, Clifford Allbutt Building-Cambridge Biosciences Campus, Department of Clinical Neurosciences, and NIHR Biomedical Research Centre, University of Cambridge, Hills Road CB2 0PY, UK.
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128
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Gu Y, Li Z, Huang J, Wang H, Gu X, Gu J. Application of marrow mesenchymal stem cell-derived extracellular matrix in peripheral nerve tissue engineering. J Tissue Eng Regen Med 2016; 11:2250-2260. [PMID: 26777754 DOI: 10.1002/term.2123] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2015] [Revised: 10/14/2015] [Accepted: 11/06/2015] [Indexed: 12/20/2022]
Abstract
To advance molecular and cellular therapy into the clinic for peripheral nerve injury, modification of neural scaffolds with the extracellular matrix (ECM) of peripheral nerves has been established as a promising alternative to direct inclusion of support cells and/or growth factors within a neural scaffold, while cell-derived ECM proves to be superior to tissue-derived ECM in the modification of neural scaffolds. Based on the fact that bone marrow mesenchymal stem cells (BMSCs), just like Schwann cells, are adopted as support cells within a neural scaffold, in this study we used BMSCs as parent cells to generate ECM for application in peripheral nerve tissue engineering. A chitosan nerve guidance conduit (NGC) and silk fibroin filamentous fillers were respectively prepared for co-culture with purified BMSCs, followed by decellularization to stimulate ECM deposition. The ECM-modified NGC and lumen fillers were then assembled into a chitosan-silk fibroin-based, BMSC-derived, ECM-modified neural scaffold, which was implanted into rats to bridge a 10 mm-long sciatic nerve gap. Histological and functional assessments after implantation showed that regenerative outcomes achieved by our engineered neural scaffold were better than those achieved by a plain chitosan-silk fibroin scaffold, and suggested the benefits of BMSC-derived ECM for peripheral nerve repair. Copyright © 2016 John Wiley & Sons, Ltd.
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Affiliation(s)
- Yun Gu
- Jiangsu Key Laboratory of Neuroregeneration, Co-innovation Centre of Neuroregeneration, Nantong University, 19 Qixiu Road, Nantong, JS 226001, People's Republic of China
| | - Zhenmeiyu Li
- Jiangsu Key Laboratory of Neuroregeneration, Co-innovation Centre of Neuroregeneration, Nantong University, 19 Qixiu Road, Nantong, JS 226001, People's Republic of China
| | - Jing Huang
- Department of Hand Surgery, Affiliated Hospital of Nantong University, People's Republic of China
| | - Hongkui Wang
- Jiangsu Key Laboratory of Neuroregeneration, Co-innovation Centre of Neuroregeneration, Nantong University, 19 Qixiu Road, Nantong, JS 226001, People's Republic of China
| | - Xiaosong Gu
- Jiangsu Key Laboratory of Neuroregeneration, Co-innovation Centre of Neuroregeneration, Nantong University, 19 Qixiu Road, Nantong, JS 226001, People's Republic of China
| | - Jianhui Gu
- Department of Hand Surgery, Affiliated Hospital of Nantong University, People's Republic of China
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129
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Marrow-Derived Mesenchymal Stromal Cells in the Treatment of Stroke. Transl Neurosci 2016. [DOI: 10.1007/978-1-4899-7654-3_17] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022] Open
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130
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Mechanisms of Plasticity, Remodeling and Recovery. Stroke 2016. [DOI: 10.1016/b978-0-323-29544-4.00011-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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131
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Bang OY. Clinical Trials of Adult Stem Cell Therapy in Patients with Ischemic Stroke. J Clin Neurol 2015; 12:14-20. [PMID: 26610894 PMCID: PMC4712282 DOI: 10.3988/jcn.2016.12.1.14] [Citation(s) in RCA: 56] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2015] [Revised: 07/16/2015] [Accepted: 07/16/2015] [Indexed: 01/01/2023] Open
Abstract
Stem cell therapy is considered a potential regenerative strategy for patients with neurologic deficits. Studies involving animal models of ischemic stroke have shown that stem cells transplanted into the brain can lead to functional improvement. With current advances in the understanding regarding the effects of introducing stem cells and their mechanisms of action, several clinical trials of stem cell therapy have been conducted in patients with stroke since 2005, including studies using mesenchymal stem cells, bone marrow mononuclear cells, and neural stem/progenitor cells. In addition, several clinical trials of the use of adult stem cells to treat ischemic stroke are ongoing. This review presents the status of our understanding of adult stem cells and results from clinical trials, and introduces ongoing clinical studies of adult stem cell therapy in the field of stroke.
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Affiliation(s)
- Oh Young Bang
- Department of Neurology, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea. .,Translational and Stem Cell Research Laboratory on Stroke, Samsung Medical Center, Seoul, Korea
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132
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Effects of Magnetically Guided, SPIO-Labeled, and Neurotrophin-3 Gene-Modified Bone Mesenchymal Stem Cells in a Rat Model of Spinal Cord Injury. Stem Cells Int 2015; 2016:2018474. [PMID: 26649047 PMCID: PMC4663356 DOI: 10.1155/2016/2018474] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2015] [Revised: 03/30/2015] [Accepted: 03/31/2015] [Indexed: 12/12/2022] Open
Abstract
Despite advances in our understanding of spinal cord injury (SCI) mechanisms, there are still no effective treatment approaches to restore functionality. Although many studies have demonstrated that transplanting NT3 gene-transfected bone marrow-derived mesenchymal stem cells (BMSCs) is an effective approach to treat SCI, the approach is often low efficient in the delivery of engrafted BMSCs to the site of injury. In this study, we investigated the therapeutic effects of magnetic targeting of NT3 gene-transfected BMSCs via lumbar puncture in a rat model of SCI. With the aid of a magnetic targeting cells delivery system, we can not only deliver the engrafted BMSCs to the site of injury more efficiently, but also perform cells imaging in vivo using MR. In addition, we also found that this composite strategy could significantly improve functional recovery and nerve regeneration compared to transplanting NT3 gene-transfected BMSCs without magnetic targeting system. Our results suggest that this composite strategy could be promising for clinical applications.
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133
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Niu J, Ding G, Zhang L. Effects of simvastatin on the osteogenic differentiation and immunomodulation of bone marrow mesenchymal stem cells. Mol Med Rep 2015; 12:8237-40. [PMID: 26499955 DOI: 10.3892/mmr.2015.4476] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2014] [Accepted: 09/22/2015] [Indexed: 11/06/2022] Open
Abstract
The present study aimed to investigate the effects of simvastatin on the bone differentiation capacity and immunological characteristics of bone marrow mesenchymal stem cells (BMSCs). BMSCs were isolated and cultured in medium containing 1.0 µmol/ml simvastatin. The alkaline phosphatase activity, mRNA expression levels of osteocalcin and bone sialoprotein, and calcium nodule formation were assessed to determine the osteogenic differentiation capability of BMSCs. To investigate alterations in the immunological properties of simvastation‑treated BMSCs, the immunogenicity of these cells and the effect of BMSCs on phytohemagglutinin‑stimulated lymphocyte proliferation were also assessed. Following treatment with simvastatin, the alkaline phosphatase activity, and mRNA expression levels of osteocalcin and bone sialoprotein were increased significantly in the BMSCs. In addition, von Kossa staining revealed a brown calcium‑positive reaction zone in simvastatin‑treated cells. Simvastatin‑induced BMSCs revealed no affect on the proliferation of allogeneic lymphocytes, however, inhibited phytohemagglutinin‑induced lymphocyte proliferation. Collectively, simvastatin promoted the osteogenic differentiation of BMSCs significantly without affecting their immunosuppressive properties.
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Affiliation(s)
- Jianyi Niu
- Department of Stomatology, Yidu Central Hospital, Weifang Medical University, Qingzhou, Shandong 262500, P.R. China
| | - Gang Ding
- Department of Stomatology, Yidu Central Hospital, Weifang Medical University, Qingzhou, Shandong 262500, P.R. China
| | - Li Zhang
- Department of Stomatology, Yidu Central Hospital, Weifang Medical University, Qingzhou, Shandong 262500, P.R. China
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134
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Lv W, Li WY, Xu XY, Jiang H, Bang OY. Bone marrow mesenchymal stem cells transplantation promotes the release of endogenous erythropoietin after ischemic stroke. Neural Regen Res 2015; 10:1265-70. [PMID: 26487854 PMCID: PMC4590239 DOI: 10.4103/1673-5374.162759] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
Abstract
This study investigated whether bone marrow mesenchymal stem cell (BMSC) transplantation protected ischemic cerebral injury by stimulating endogenous erythropoietin. The model of ischemic stroke was established in rats through transient middle cerebral artery occlusion. Twenty-four hours later, 1 × 106 human BMSCs (hBMSCs) were injected into the tail vein. Fourteen days later, we found that hBMSCs promoted the release of endogenous erythropoietin in the ischemic region of rats. Simultaneously, 3 μg/d soluble erythropoietin receptor (sEPOR) was injected into the lateral ventricle, and on the next 13 consecutive days. sEPOR blocked the release of endogenous erythropoietin. The neurogenesis in the subventricular zone was less in the hBMSCs + sEPOR group than in the hBMSCs + heat-denatured sEPOR group. The adhesive-removal test result and the modified Neurological Severity Scores (mNSS) were lower in the hBMSCs + sEPOR group than in the heat-denatured sEPOR group. The adhesive-removal test result and mNSS were similar between the hBMSCs + heat-denatured sEPOR group and the hBMSCs + sEPOR group. These findings confirm that BMSCs contribute to neurogenesis and improve neurological function by promoting the release of endogenous erythropoietin following ischemic stroke.
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Affiliation(s)
- Wen Lv
- Department of Neurology, Sir Run Run Shaw Hospital, College of Medicine, Zhejiang University, Hangzhou, Zhejiang Province, China
| | - Wen-Yu Li
- Department of Neurology, Sir Run Run Shaw Hospital, College of Medicine, Zhejiang University, Hangzhou, Zhejiang Province, China
| | - Xiao-Yan Xu
- Department of Neurology, Sir Run Run Shaw Hospital, College of Medicine, Zhejiang University, Hangzhou, Zhejiang Province, China
| | - Hong Jiang
- Department of Neurology, Sir Run Run Shaw Hospital, College of Medicine, Zhejiang University, Hangzhou, Zhejiang Province, China
| | - Oh Yong Bang
- Department of Neurology, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Republic of Korea
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135
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Liu Z, Chopp M. Astrocytes, therapeutic targets for neuroprotection and neurorestoration in ischemic stroke. Prog Neurobiol 2015; 144:103-20. [PMID: 26455456 DOI: 10.1016/j.pneurobio.2015.09.008] [Citation(s) in RCA: 393] [Impact Index Per Article: 43.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2015] [Revised: 08/06/2015] [Accepted: 09/05/2015] [Indexed: 01/04/2023]
Abstract
Astrocytes are the most abundant cell type within the central nervous system. They play essential roles in maintaining normal brain function, as they are a critical structural and functional part of the tripartite synapses and the neurovascular unit, and communicate with neurons, oligodendrocytes and endothelial cells. After an ischemic stroke, astrocytes perform multiple functions both detrimental and beneficial, for neuronal survival during the acute phase. Aspects of the astrocytic inflammatory response to stroke may aggravate the ischemic lesion, but astrocytes also provide benefit for neuroprotection, by limiting lesion extension via anti-excitotoxicity effects and releasing neurotrophins. Similarly, during the late recovery phase after stroke, the glial scar may obstruct axonal regeneration and subsequently reduce the functional outcome; however, astrocytes also contribute to angiogenesis, neurogenesis, synaptogenesis, and axonal remodeling, and thereby promote neurological recovery. Thus, the pivotal involvement of astrocytes in normal brain function and responses to an ischemic lesion designates them as excellent therapeutic targets to improve functional outcome following stroke. In this review, we will focus on functions of astrocytes and astrocyte-mediated events during stroke and recovery. We will provide an overview of approaches on how to reduce the detrimental effects and amplify the beneficial effects of astrocytes on neuroprotection and on neurorestoration post stroke, which may lead to novel and clinically relevant therapies for stroke.
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Affiliation(s)
- Zhongwu Liu
- Department of Neurology, Henry Ford Hospital, Detroit, MI, USA.
| | - Michael Chopp
- Department of Neurology, Henry Ford Hospital, Detroit, MI, USA; Department of Physics, Oakland University, Rochester, MI, USA
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136
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Wang Z, Wang Y, Wang Z, Gutkind JS, Wang Z, Wang F, Lu J, Niu G, Teng G, Chen X. Engineered mesenchymal stem cells with enhanced tropism and paracrine secretion of cytokines and growth factors to treat traumatic brain injury. Stem Cells 2015; 33:456-67. [PMID: 25346537 DOI: 10.1002/stem.1878] [Citation(s) in RCA: 63] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/29/2013] [Revised: 07/31/2014] [Accepted: 08/17/2014] [Indexed: 12/13/2022]
Abstract
Traumatic brain injury (TBI) is the leading cause of death and disability worldwide. Mesenchymal stem cells (MSCs) are promising for the treatment of various diseases and injuries. Many strategies have been applied to attract MSCs to injury site after systemic infusion. In this study, we evidenced that the CXC chemokine receptor 4 (CXCR4)-SDF1α (stromal cell-derived factor 1α) axis in engineered MSCs serves not only to attract MSC migration to TBI but also to activate Akt kinase signaling pathway in MSCs to promote paracrine secretion of cytokines and growth factors. This leads to enhanced vasculogenesis and neuroprotection at the boundary of TBI for improved blood supply, recovery of axon connectivity, and behavioral ability and results in positive feedback loop to enhance additional MSC tropism to injury. These findings indicate a new aspect of SDF1α in mediating CXCR4 engineered MSCs for brain trauma homing and recovery. This potential mechanism may be applicable to other injuries, where CXCR4-SDF1α interaction is highly associated.
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Affiliation(s)
- Zhe Wang
- Laboratory of Molecular Imaging and Nanomedicine, National Institute of Biomedical Imaging and Bioengineering, National Institutes of Health, Bethesda, Maryland, USA
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137
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Zhang YX, Yuan MZ, Cheng L, Lin LZ, Du HW, Chen RH, Liu N. Treadmill exercise enhances therapeutic potency of transplanted bone mesenchymal stem cells in cerebral ischemic rats via anti-apoptotic effects. BMC Neurosci 2015; 16:56. [PMID: 26342636 PMCID: PMC4560892 DOI: 10.1186/s12868-015-0196-9] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2015] [Accepted: 08/25/2015] [Indexed: 12/23/2022] Open
Abstract
Background The transplantation of bone marrow stromal cells (MSCs) has proved to ameliorate ischemic brain injury in animals, but most transplanted MSCs undergo apoptosis in the ischemic penumbra, greatly compromising the therapeutic value of this treatment. Meanwhile, cell apoptosis can be inhibited by post-ischemia exercise which has been demonstrated to improve the expression of related anti-apoptotic proteins. The present study investigated whether treadmill exercise enhances the neuroprotective effects of transplanted MSCs in a rat experimental stroke model. Result Rats were subjected to 2-h middle cerebral artery occlusion (MCAO). Twenty-four hours after reperfusion, they were assigned randomly to receive no MSCs treatment and no exercise (control group), intravenous transplantation of MSCs and treadmill exercise (MSCs + Ex group), MSCs transplantation only (MSCs group) and treadmill exercise only (Ex group). Neurological assessment, TUNEL staining and western blot were performed. Compared with the MSCs group and Ex group, the MSCs + Ex group reported markedly improved neurological function, significantly decreased apoptotic cells, and increased expressions of survivin and bcl-2 (p < 0.05 or p < 0.01, respectively). Interestingly, the treadmill exercise significantly inhibited the apoptosis of transplanted MSCs. As a result, the number of engrafted MSCs in the MSCs + Ex group was significantly higher than that in the MSC group (p < 0.01). Conclusions Treadmill exercise enhances the therapeutic potency of MSCs by improving neurological function and possibly inhibiting the apoptosis of neuron cells and transplanted MSCs. These effects may involve an increased expression of survivin and bcl-2.
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Affiliation(s)
- Yi-Xian Zhang
- Department of Rehabilitation, Union Hospital, Fujian Medical University, Fuzhou, 350001, People's Republic of China.
| | - Ming-Zhou Yuan
- College of Integrative Medicine, Fujian University of Traditional Chinese Medicine, Fuzhou, 350122, People's Republic of China.
| | - Lin Cheng
- Department of Neurology, Union Hospital, Fujian Medical University, Fuzhou, 350001, People's Republic of China.
| | - Long-Zai Lin
- Department of Neurology, Union Hospital, Fujian Medical University, Fuzhou, 350001, People's Republic of China.
| | - Hou-Wei Du
- Department of Neurology, Union Hospital, Fujian Medical University, Fuzhou, 350001, People's Republic of China.
| | - Rong-Hua Chen
- Department of Neurology, Union Hospital, Fujian Medical University, Fuzhou, 350001, People's Republic of China.
| | - Nan Liu
- Department of Rehabilitation, Union Hospital, Fujian Medical University, Fuzhou, 350001, People's Republic of China. .,Department of Neurology, Union Hospital, Fujian Medical University, Fuzhou, 350001, People's Republic of China.
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138
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Belting M, Christianson HC. Role of exosomes and microvesicles in hypoxia-associated tumour development and cardiovascular disease. J Intern Med 2015; 278:251-63. [PMID: 26153525 DOI: 10.1111/joim.12393] [Citation(s) in RCA: 40] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Exosomes and microvesicles, collectively referred to as extracellular vesicles (EVs), can transfer complex biological information and induce a diverse signalling response in recipient cells with potential relevance in a wide array of pathological conditions. Tissue hypoxia constitutes a stress-associated phenotype that is central to the malignant state of aggressive tumours as well as to ischaemic tissue in cardiovascular disorders. The adaptive response to hypoxic stress is largely dependent on intercellular communication in which EVs, and cellular exchange of EV cargo molecules, have recently been implicated. The results of numerous studies indicate that hypoxia-dependent shaping of the molecular profile of EVs may mediate the biological response to hypoxia. EVs have been shown to induce tumour angiogenesis and hypercoagulation as well as tissue remodelling and protective effects in ischaemic cardiovascular conditions. Recent findings report increased levels of circulating EVs in patients with hypoxia-associated disorders such as myocardial infarction, stroke and pre-eclampsia, indicating a role of EVs as biomarkers in these pathophysiological states. Here, we discuss the intriguing role of EVs in tumour development and cardiovascular disease, focusing on the paracrine transfer of the hypoxic response to neighbouring cells and to distant cells at the systemic level, with wide implications for biomarker discovery and therapeutic intervention.
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Affiliation(s)
- M Belting
- Section of Oncology and Pathology, Department of Clinical Sciences, Lund University, Lund, Sweden.,Department of Oncology, Skåne University Hospital, Lund, Sweden
| | - H C Christianson
- Section of Oncology and Pathology, Department of Clinical Sciences, Lund University, Lund, Sweden
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Quintard H, Heurteaux C, Ichai C. Adult neurogenesis and brain remodelling after brain injury: From bench to bedside? Anaesth Crit Care Pain Med 2015; 34:239-45. [PMID: 26233283 DOI: 10.1016/j.accpm.2015.02.008] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2014] [Accepted: 02/19/2015] [Indexed: 12/16/2022]
Abstract
OBJECTIVE Brain trauma and stroke cause important disabilities. The mechanisms involved are now well described, but all therapeutics developed thus far for neuro-protection are currently unsuccessful at improving neurologic prognosis. The recently studied neuro-restorative time following brain injury may point towards a promising therapeutic approach. The purpose of this paper is to explain the mechanisms of this revolutionary concept, give an overview of related knowledge and discuss its transfer into clinical practice. DATA SOURCES AND SYNTHESIS An overview of the neurogenesis concept using MEDLINE, EMBASE and CENTRAL databases was carried out in May 2014. The clinicaltrials.gov registry was used to search for ongoing clinical trials in this domain. CONCLUSION The concept of brain remodelling upset fundamental ideas concerning the neurologic system and opened new fields of research. Therapies currently under evaluation hold promising results and could have a real prognostic impact in future years, but the translation of these therapies from the laboratory to the clinic is still far from completion.
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Affiliation(s)
- Hervé Quintard
- Intensive Care Unit, CHU Nice, 4, rue Pierre-Dévoluy, 06000 Nice, France.
| | - Catherine Heurteaux
- Institut de Pharmacologie Moléculaire et Cellulaire (CNRS), Université de Sophia-Antipolis, 660, route des Lucioles, 06560 Valbonne, France.
| | - Carole Ichai
- Intensive Care Unit, CHU Nice, 4, rue Pierre-Dévoluy, 06000 Nice, France.
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140
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Sun Z, Satomoto M, Makita K. Therapeutic effects of intravenous administration of bone marrow stromal cells on sevoflurane-induced neuronal apoptosis and neuroinflammation in neonatal rats. Korean J Anesthesiol 2015; 68:397-401. [PMID: 26257854 PMCID: PMC4524940 DOI: 10.4097/kjae.2015.68.4.397] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2014] [Revised: 06/04/2014] [Accepted: 06/27/2014] [Indexed: 01/13/2023] Open
Abstract
Background Sevoflurane exposure during the early postnatal period causes neuroinflammation and neuronal apoptosis in rodents. Bone marrow stromal cells (BMSCs) have been shown to protect and repair the damaged central nervous system, for example in ischemic stroke models. In this study, we investigated whether intravenous administration of BMSCs ameliorated neurodegeneration, induced by sevoflurane exposure, in neonatal rats. Methods Sprague-Dawley rat pups (postnatal day 7) were exposed to 2% sevoflurane for 6 h (vehicle group, n = 7). BMSCs were administered 30 min after induction of sevoflurane anesthesia (BMSCs group, n = 7). The pups were exposed to carrier gas only, as a negative control (mock anesthesia group, n = 4). We assessed the therapeutic effects of BMSC treatment by measuring expression of the pro-inflammatory cytokine interleukin-6 (IL-6), and levels of cleaved caspase-3, in brain tissues immediately following sevoflurane anesthesia. Results Analysis of the cleaved caspase-3 bands revealed that levels of activated caspase-3 were elevated in the vehicle group compared with the mock anesthesia group, indicating that a single exposure to sevoflurane at subclinical concentrations can precipitate neuronal apoptosis. BMSC treatment did not suppress apoptosis induced by sevoflurane exposure (compared with the vehicle group). The vehicle group had higher proinflammatory cytokine IL-6 protein levels compared with the mock anesthesia group, indicating that sevoflurane exposure induces IL-6 expression. BMSC treatment suppressed sevoflurane-induced increases in IL-6 expression, indicating that these cells can inhibit the neuroinflammation induced by sevoflurane exposure (vehicle group vs. BMSC group). Conclusions Intravenous administration of BMSCs reduces neuroinflammation, but does not attenuate apoptosis induced by sevoflurane exposure.
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Affiliation(s)
- ZhongLiang Sun
- Department of Anesthesiology, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University, Tokyo, Japan
| | - Maiko Satomoto
- Department of Anesthesiology, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University, Tokyo, Japan
| | - Koshi Makita
- Department of Anesthesiology, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University, Tokyo, Japan
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Mehanna RA, Nabil I, Attia N, Bary AA, Razek KA, Ahmed TAE, Elsayed F. The Effect of Bone Marrow-Derived Mesenchymal Stem Cells and Their Conditioned Media Topically Delivered in Fibrin Glue on Chronic Wound Healing in Rats. BIOMED RESEARCH INTERNATIONAL 2015; 2015:846062. [PMID: 26236740 PMCID: PMC4508387 DOI: 10.1155/2015/846062] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/24/2015] [Revised: 06/17/2015] [Accepted: 06/18/2015] [Indexed: 02/05/2023]
Abstract
Bone marrow-derived mesenchymal stem cells (BM-MSCs) represent a modern approach for management of chronic skin injuries. In this work, we describe BM-MSCs application versus their conditioned media (CM) when delivered topically admixed with fibrin glue to enhance the healing of chronic excisional wounds in rats. Fifty-two adult male rats were classified into four groups after induction of large-sized full-thickness skin wound: control group (CG), fibrin only group (FG), fibrin + MSCs group (FG + SCs), and fibrin + CM group (FG + CM). Healing wounds were evaluated functionally and microscopically. Eight days after injury, number of CD68+ macrophages infiltrating granulation tissue was considerably higher in the latter two groups. Although--later--none of the groups depicted a substantially different healing rate, the quality of regenerated skin was significantly boosted by the application of either BM-MSCs or their CM both (1) structurally as demonstrated by the obviously increased mean area percent of collagen fibers in Masson's trichrome-stained skin biopsies and (2) functionally as supported by the interestingly improved epidermal barrier as well as dermal tensile strength. Thus, we conclude that topically applied BM-MSCs and their CM-via fibrin vehicle--could effectively improve the quality of healed skin in chronic excisional wounds in rats, albeit without true acceleration of wound closure.
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Affiliation(s)
- Radwa A. Mehanna
- Medical Physiology Department, Faculty of Medicine, Alexandria University, Dr Fahmi Abdel Meguid Street, Mowassat Building, El Shatby, Alexandria 21561, Egypt
- Center of Excellence for Research in Regenerative Medicine and Applications (CERRMA), Faculty of Medicine, Alexandria University, Alexandria 21514, Egypt
| | - Iman Nabil
- Center of Excellence for Research in Regenerative Medicine and Applications (CERRMA), Faculty of Medicine, Alexandria University, Alexandria 21514, Egypt
- Histology and Cell Biology Department, Faculty of Medicine, Alexandria University, Dr Fahmi Abdel Meguid Street, Mowassat Building, El Shatby, Alexandria 21561, Egypt
| | - Noha Attia
- Center of Excellence for Research in Regenerative Medicine and Applications (CERRMA), Faculty of Medicine, Alexandria University, Alexandria 21514, Egypt
- Histology and Cell Biology Department, Faculty of Medicine, Alexandria University, Dr Fahmi Abdel Meguid Street, Mowassat Building, El Shatby, Alexandria 21561, Egypt
| | - Amany A. Bary
- Pathology Department, Faculty of Medicine, Alexandria University, Dr Fahmi Abdel Meguid Street, Mowassat Building, El Shatby, Alexandria 21561, Egypt
| | - Khalid A. Razek
- Medical Research Institute, Alexandria University, 71 Victor Emanuel Street, Smouha, Alexandria 21615, Egypt
| | - Tamer A. E. Ahmed
- Medical Biotechnology Department, Genetic Engineering and Biotechnology Research Institute, City of Scientific Research and Technological Applications, New Borg El-Arab, P.O. Box 21934, Alexandria, Egypt
| | - Fatma Elsayed
- Cell Culture Department, Medical Research Institute, Alexandria University, 71 Victor Emanuel Street, Smouha, Alexandria 21615, Egypt
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Zhou LN, Cui XJ, Su KX, Wang XH, Guo JH. Beneficial reciprocal effects of bone marrow stromal cells and Schwann cells from adult rats in a dynamic co‑culture system in vitro without intercellular contact. Mol Med Rep 2015; 12:4931-8. [PMID: 26133460 PMCID: PMC4581791 DOI: 10.3892/mmr.2015.4016] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/29/2014] [Accepted: 06/11/2015] [Indexed: 01/17/2023] Open
Abstract
In order to examine how implanted bone marrow stromal cells (BMSCs) encourage peripheral nerve regeneration, the present study investigated the interaction of BMSCs and Schwann cells (SCs) using an indirect in vitro co‑culture model. SCs and BMSCs were obtained from adult Sprague‑Dawley rats. The passaged BMSCs were CD29‑ and CD44‑positive but CD45‑negative and were co‑cultured with the primary SCs using a Millicell system, which allows BMSCs and SCs to grow in the same culture medium but without direct contact. Expression of the typical SC markers S‑100 and glial fibrillary acidic protein (GFAP) of the treated BMSCs as well as the proliferation capacity of the co‑cultured SCs was evaluated by immunocytochemical staining on the 3rd and 5th day of co‑culture. Immunocytochemical staining showed that >75% of the BMSCs in the indirect co‑culture model were GFAP‑ and S‑100‑positive on the 3rd and 5th day after co‑culture, as opposed to <5% of the BMSCs in the control group. On the 3rd day after co‑culture, only a few co‑cultured BMSCs showed the typical SC‑like morphology, while most BMSCs still kept their native appearance. By contrast, on the 5th day after co‑culture, almost all of the co‑cultured BMSCs appeared with the typical SC‑like morphology. Furthermore, 70.71% of the SCs in the indirect co‑culture model were S‑100‑positive on the 5th day of co‑culture, as opposed to >30.43% of the SCs in the control group. These results indicated that BMSCs may interact synergistically with SCs with regard to promoting peripheral nerve regeneration.
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Affiliation(s)
- Li-Na Zhou
- Department of Anatomy, Guangdong Medical University, Zhanjiang, Guangdong 524023, P.R. China
| | - Xiao-Jun Cui
- Department of Anatomy, Guangdong Medical University, Zhanjiang, Guangdong 524023, P.R. China
| | - Kai-Xin Su
- Department of Anatomy, Guangdong Medical University, Zhanjiang, Guangdong 524023, P.R. China
| | - Xiao-Hong Wang
- Department of Anatomy, Guangdong Medical University, Zhanjiang, Guangdong 524023, P.R. China
| | - Jin-Hua Guo
- Department of Anatomy, Guangdong Medical University, Zhanjiang, Guangdong 524023, P.R. China
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Yang K, Park HJ, Han S, Lee J, Ko E, Kim J, Lee JS, Yu JH, Song KY, Cheong E, Cho SR, Chung S, Cho SW. Recapitulation of in vivo-like paracrine signals of human mesenchymal stem cells for functional neuronal differentiation of human neural stem cells in a 3D microfluidic system. Biomaterials 2015; 63:177-88. [PMID: 26113074 DOI: 10.1016/j.biomaterials.2015.06.011] [Citation(s) in RCA: 57] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2015] [Revised: 06/10/2015] [Accepted: 06/11/2015] [Indexed: 12/22/2022]
Abstract
Paracrine signals produced from stem cells influence tissue regeneration by inducing the differentiation of endogenous stem or progenitor cells. However, many recent studies that have investigated paracrine signaling of stem cells have relied on either two-dimensional transwell systems or conditioned medium culture, neither of which provide optimal culture microenvironments for elucidating the effects of paracrine signals in vivo. In this study, we recapitulated in vivo-like paracrine signaling of human mesenchymal stem cells (hMSCs) to enhance functional neuronal differentiation of human neural stem cells (hNSCs) in three-dimensional (3D) extracellular matrices (ECMs) within a microfluidic array platform. In order to amplify paracrine signaling, hMSCs were genetically engineered using cationic polymer nanoparticles to overexpress glial cell-derived neurotrophic factor (GDNF). hNSCs were cultured in 3D ECM hydrogel used to fill central channels of the microfluidic device, while GDNF-overexpressing hMSCs (GDNF-hMSCs) were cultured in channels located on both sides of the central channel. This setup allowed for mimicking of paracrine signaling between genetically engineered hMSCs and endogenous hNSCs in the brain. Co-culture of hNSCs with GDNF-hMSCs in the 3D microfluidic system yielded reduced glial differentiation of hNSCs while significantly enhancing differentiation into neuronal cells including dopaminergic neurons. Neuronal cells produced from hNSCs differentiating in the presence of GDNF-hMSCs exhibited functional neuron-like electrophysiological features. The enhanced paracrine ability of GDNF-hMSCs was finally confirmed using an animal model of hypoxic-ischemic brain injury. This study demonstrates the presented 3D microfluidic array device can provide an efficient co-culture platform and provide an environment for paracrine signals from transplanted stem cells to control endogenous neuronal behaviors in vivo.
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Affiliation(s)
- Kisuk Yang
- Department of Biotechnology, Yonsei University, Seoul 120-749, Republic of Korea; Department of Biomaterials Science and Engineering, Yonsei University, Seoul 120-749, Republic of Korea
| | - Hyun-Ji Park
- Department of Biotechnology, Yonsei University, Seoul 120-749, Republic of Korea
| | - Sewoon Han
- School of Mechanical Engineering, Korea University, Seoul 136-713, Republic of Korea
| | - Joan Lee
- Department of Biotechnology, Yonsei University, Seoul 120-749, Republic of Korea
| | - Eunkyung Ko
- Department of Biotechnology, Yonsei University, Seoul 120-749, Republic of Korea
| | - Jin Kim
- Department of Biotechnology, Yonsei University, Seoul 120-749, Republic of Korea
| | - Jong Seung Lee
- Department of Biotechnology, Yonsei University, Seoul 120-749, Republic of Korea
| | - Ji Hea Yu
- Department and Research Institute of Rehabilitation Medicine, Brain Korea 21 PLUS Project for Medical Science, Yonsei University College of Medicine, Seoul 120-752, Republic of Korea
| | - Ki Yeong Song
- Department of Biotechnology, Yonsei University, Seoul 120-749, Republic of Korea
| | - Eunji Cheong
- Department of Biotechnology, Yonsei University, Seoul 120-749, Republic of Korea
| | - Sung-Rae Cho
- Department and Research Institute of Rehabilitation Medicine, Brain Korea 21 PLUS Project for Medical Science, Yonsei University College of Medicine, Seoul 120-752, Republic of Korea
| | - Seok Chung
- School of Mechanical Engineering, Korea University, Seoul 136-713, Republic of Korea
| | - Seung-Woo Cho
- Department of Biotechnology, Yonsei University, Seoul 120-749, Republic of Korea; Department of Neurosurgery, Yonsei University College of Medicine, Seoul 120-752, Republic of Korea.
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Bonilla C, Zurita M, Aguayo C, Rodríguez A, Vaquero J. Is the subarachnoid administration of mesenchymal stromal cells a useful strategy to treat chronic brain damage? Cytotherapy 2015; 16:1501-1510. [PMID: 25287600 DOI: 10.1016/j.jcyt.2014.07.007] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2014] [Revised: 07/18/2014] [Accepted: 07/18/2014] [Indexed: 12/24/2022]
Abstract
BACKGROUND AIMS Traumatic brain injury (TBI) is a leading cause of mortality and morbidity worldwide. Developing effective protocols for the administration of mesenchymal stromal cells (MSCs) is a promising therapeutic strategy to treat TBI. It is important to develop alternatives to direct parenchymal injection at the injury site because direct injection is an expensive and invasive technique. Subarachnoid transplantation, a minimally invasive and low-risk procedure, may be an important and clinically applicable strategy. The aim of this study was to test the therapeutic effect of subarachnoid administration of MSCs on functional outcome 2 months after an experimental TBI in rats. METHODS Two months after TBI, 30 female Wistar rats were divided into 3 groups (n = 10 in each group): sham, MSC (received 2 × 10(6) MSCs) and saline (received only saline) groups. Neurological function, brain and spinal cords samples and cerebrospinal fluid were studied. RESULTS No significant differences were found in neurological evaluation and after histological analysis; differences in the expression of neurotrophins were present but were not statistically significant. MSCs survived in the host tissue, and some expressed neural markers. CONCLUSIONS Similar to direct parenchymal injections, transplanted MSCs survive, migrate to the injury cavity and differentiate into mature neural cell types for at least 6 months after engraftment. These results open the possibility that MSC administration through subarachnoid administration may be a treatment for the consequences of TBI. The transplantation technique and cell number should be adjusted to obtain functional outcome and neurotrophin production differences.
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Affiliation(s)
- Celia Bonilla
- Neuroscience Research Unit, Puerta de Hierro Hospital, Majadahonda, Madrid, Spain.
| | - Mercedes Zurita
- Neuroscience Research Unit, Puerta de Hierro Hospital, Majadahonda, Madrid, Spain
| | - Concepción Aguayo
- Neuroscience Research Unit, Puerta de Hierro Hospital, Majadahonda, Madrid, Spain
| | - Alicia Rodríguez
- Neuroscience Research Unit, Puerta de Hierro Hospital, Majadahonda, Madrid, Spain
| | - Jesús Vaquero
- Neuroscience Research Unit, Puerta de Hierro Hospital, Majadahonda, Madrid, Spain; Service of Neurosurgery, Puerta de Hierro Hospital, Majadahonda, Madrid, Spain
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Xiong Y, Zhang Y, Mahmood A, Chopp M. Investigational agents for treatment of traumatic brain injury. Expert Opin Investig Drugs 2015; 24:743-60. [PMID: 25727893 PMCID: PMC4433440 DOI: 10.1517/13543784.2015.1021919] [Citation(s) in RCA: 59] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
Abstract
INTRODUCTION Traumatic brain injury (TBI) is a major cause of death and disability worldwide. To date, there are no pharmacologic agents proven to improve outcomes from TBI because all the Phase III clinical trials in TBI have failed. Thus, there is a compelling need to develop treatments for TBI. AREAS COVERED The following article provides an overview of select cell-based and pharmacological therapies under early development for the treatment of TBI. These therapies seek to enhance cognitive and neurological functional recovery through neuroprotective and neurorestorative strategies. EXPERT OPINION TBI elicits both complex degenerative and regenerative tissue responses in the brain. TBI can lead to cognitive, behavioral, and motor deficits. Although numerous promising neuroprotective treatment options have emerged from preclinical studies that mainly target the lesion, translation of preclinical effective neuroprotective drugs to clinical trials has proven challenging. Accumulating evidence indicates that the mammalian brain has a significant, albeit limited, capacity for both structural and functional plasticity, as well as regeneration essential for spontaneous functional recovery after injury. A new therapeutic approach is to stimulate neurovascular remodeling by enhancing angiogenesis, neurogenesis, oligodendrogenesis, and axonal sprouting, which in concert, may improve neurological functional recovery after TBI.
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Affiliation(s)
- Ye Xiong
- Henry Ford Hospital, Department of Neurosurgery , Education and Research Building, Room 3096, 2799 West Grand Boulevard, Detroit, MI 48202 , USA +1 313 916 4743 ; +1 313 916 9855 ;
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Kim DH, Seo YK, Thambi T, Moon GJ, Son JP, Li G, Park JH, Lee JH, Kim HH, Lee DS, Bang OY. Enhancing neurogenesis and angiogenesis with target delivery of stromal cell derived factor-1α using a dual ionic pH-sensitive copolymer. Biomaterials 2015; 61:115-25. [PMID: 26001076 DOI: 10.1016/j.biomaterials.2015.05.025] [Citation(s) in RCA: 72] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2015] [Revised: 05/03/2015] [Accepted: 05/14/2015] [Indexed: 12/20/2022]
Abstract
In this study, we hypothesized that the delivery of molecules that regulate the microenvironment after a cerebral infarction can influence regeneration potential after a stroke. Stromal cell-derived factor-1α (SDF-1α) is a chemoattractant molecule that plays a pivotal role in recruiting endothelial progenitor cells (EPCs) to the infarct region after stroke. Increased SDF-1α expression leads to increased EPCs homing at the infarct region and induces neurogenesis, angiogenesis, neuroprotection, and stem cell homing. Thus, we evaluated the effects of targeted delivery of SDF-1α using a pH-sensitive polymer poly (urethane amino sulfamethazine) (PUASM), a synthetic macromolecule with potential for targeted drug delivery in acidic conditions, to enhance therapeutic neurogenesis and angiogenesis in a rat model of permanent middle cerebral artery occlusion. A dual ionic pH-sensitive copolymer PUASM-based random copolymer was designed and synthesized for the controlled release of SDF-1α in stroke. Owing to the unique characteristics of PUASM, it exhibited a dual ionic pH-sensitive property in an aqueous solution. At pH 8.5, the copolymer exhibited a negative charge and was water soluble. Interestingly, when the pH decreased to 7.4, PUASM could form a micelle and encapsulate protein effectively via the ionic interaction between a negatively charged polymer and a positively charged protein. At pH 5.5, the ionization of tertiary amines led to the disassembly of the micellar structure and released the protein rapidly. Then, we investigated the effect of systemic administration of SDF-1α-loaded pH-sensitive polymeric micelles in a stroke induced rat model. An enzyme-linked immunosorbent assay showed increased expression of SDF-1α in the ischemic region, indicating that the pH-sensitive micelles effectively delivered SDF-1α into the ischemic region. In order to observe the biodistribution of SDF-1α in the ischemic region, it was labeled with the near-infrared dye, Cy5.5. Optical imaging showed that the Cy5.5 signal increased in the infarct region 24 h after administration. Immunohistochemistry data showed that targeted delivery of SDF-1α enhanced neurogenesis and angiogenesis, but did not influence cell survival or inflammation. These observations suggest that SDF-1α-loaded pH-sensitive polymeric micelles can be used as pH-triggered targeting agents and can effectively modify the microenvironment to increase innate neurorestorative processes.
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Affiliation(s)
- Dong Hee Kim
- Department of Health Sciences and Technology, Samsung Advanced Institute for Health Sciences and Technology, Sungkyunkwan University, Seoul, Republic of Korea
| | - Young Kyu Seo
- School of Chemical Engineering, Theranostic Macromolecules Research Center, Sungkyunkwan University, Suwon, Republic of Korea
| | - Thavasyappan Thambi
- School of Chemical Engineering, Theranostic Macromolecules Research Center, Sungkyunkwan University, Suwon, Republic of Korea
| | - Gyeong Joon Moon
- Stem Cell and Regenerative Medicine Center, Research Institute for Future Medicine, Samsung Medical Center, Seoul, Republic of Korea
| | - Jung Pyo Son
- Department of Health Sciences and Technology, Samsung Advanced Institute for Health Sciences and Technology, Sungkyunkwan University, Seoul, Republic of Korea
| | - Guangri Li
- School of Chemical Engineering, Theranostic Macromolecules Research Center, Sungkyunkwan University, Suwon, Republic of Korea
| | - Jae Hyung Park
- School of Chemical Engineering, Theranostic Macromolecules Research Center, Sungkyunkwan University, Suwon, Republic of Korea
| | - Jung Hee Lee
- Department of Health Sciences and Technology, Samsung Advanced Institute for Health Sciences and Technology, Sungkyunkwan University, Seoul, Republic of Korea; Department of Radiology, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Republic of Korea; Center for Molecular and Cellular Imaging, Samsung Biomechanical Research Institute, Samsung Medical Center, Seoul, Republic of Korea
| | - Hyeon Ho Kim
- Department of Health Sciences and Technology, Samsung Advanced Institute for Health Sciences and Technology, Sungkyunkwan University, Seoul, Republic of Korea; Samsung Biomechanical Research Institute, Institute for Future Medicine, Samsung Medical Center, Seoul, Republic of Korea
| | - Doo Sung Lee
- School of Chemical Engineering, Theranostic Macromolecules Research Center, Sungkyunkwan University, Suwon, Republic of Korea.
| | - Oh Young Bang
- Department of Health Sciences and Technology, Samsung Advanced Institute for Health Sciences and Technology, Sungkyunkwan University, Seoul, Republic of Korea; Stem Cell and Regenerative Medicine Center, Research Institute for Future Medicine, Samsung Medical Center, Seoul, Republic of Korea; Departments of Neurology, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Republic of Korea.
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Xue F, Wu EJ, Zhang PX, Li-Ya A, Kou YH, Yin XF, Han N. Biodegradable chitin conduit tubulation combined with bone marrow mesenchymal stem cell transplantation for treatment of spinal cord injury by reducing glial scar and cavity formation. Neural Regen Res 2015; 10:104-11. [PMID: 25788929 PMCID: PMC4357092 DOI: 10.4103/1673-5374.150715] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 12/10/2014] [Indexed: 01/25/2023] Open
Abstract
We examined the restorative effect of modified biodegradable chitin conduits in combination with bone marrow mesenchymal stem cell transplantation after right spinal cord hemisection injury. Immunohistochemical staining revealed that biological conduit sleeve bridging reduced glial scar formation and spinal muscular atrophy after spinal cord hemisection. Bone marrow mesenchymal stem cells survived and proliferated after transplantation in vivo, and differentiated into cells double-positive for S100 (Schwann cell marker) and glial fibrillary acidic protein (glial cell marker) at 8 weeks. Retrograde tracing showed that more nerve fibers had grown through the injured spinal cord at 14 weeks after combination therapy than either treatment alone. Our findings indicate that a biological conduit combined with bone marrow mesenchymal stem cell transplantation effectively prevented scar formation and provided a favorable local microenvironment for the proliferation, migration and differentiation of bone marrow mesenchymal stem cells in the spinal cord, thus promoting restoration following spinal cord hemisection injury.
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Affiliation(s)
- Feng Xue
- Department of Trauma and Orthopedics, Peking University People's Hospital, Beijing, China
| | - Er-Jun Wu
- Graduate School of Shanxi Medical University, Taiyuan, Shanxi Province, China
| | - Pei-Xun Zhang
- Department of Trauma and Orthopedics, Peking University People's Hospital, Beijing, China
| | - A Li-Ya
- Department of Trauma and Orthopedics, Peking University People's Hospital, Beijing, China
| | - Yu-Hui Kou
- Department of Trauma and Orthopedics, Peking University People's Hospital, Beijing, China
| | - Xiao-Feng Yin
- Department of Trauma and Orthopedics, Peking University People's Hospital, Beijing, China
| | - Na Han
- Central Laboratory, Peking University People's Hospital, Beijing, China
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Combination of electroacupuncture and grafted mesenchymal stem cells overexpressing TrkC improves remyelination and function in demyelinated spinal cord of rats. Sci Rep 2015; 5:9133. [PMID: 25779025 PMCID: PMC5390924 DOI: 10.1038/srep09133] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2014] [Accepted: 02/16/2015] [Indexed: 12/13/2022] Open
Abstract
This study attempted to graft neurotrophin-3 (NT-3) receptor (TrkC) gene modified mesenchymal stem cells (TrkC-MSCs) into the demyelinated spinal cord and to investigate whether electroacupuncture (EA) treatment could promote NT-3 secretion in the demyelinated spinal cord as well as further enhance grafted TrkC-MSCs to differentiate into oligodendrocytes, remyelination and functional recovery. Ethidium bromide (EB) was microinjected into the spinal cord of rats at T10 to establish a demyelinated model. Six groups of animals were prepared for the experiment: the sham, PBS, MSCs, MSCs+EA, TrkC-MSCs and TrkC-MSCs+EA groups. The results showed that TrkC-MSCs graft combined with EA treatment (TrkC-MSCs+EA group) significantly increased the number of OPCs and oligodendrocyte-like cells differentiated from MSCs. Immunoelectron microscopy showed that the oligodendrocyte-like cells differentiated from TrkC-MSCs formed myelin sheaths. Immunofluorescence histochemistry and Western blot analysis indicated that TrkC-MSCs+EA treatment could promote the myelin basic protein (MBP) expression and Kv1.2 arrangement trending towards the normal level. Furthermore, behavioural test and cortical motor evoked potentials detection demonstrated a significant functional recovery in the TrkC-MSCs+EA group. In conclusion, our results suggest that EA treatment can increase NT-3 expression, promote oligodendrocyte-like cell differentiation from TrkC-MSCs, remyelination and functional improvement of demyelinated spinal cord.
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Kaizawa Y, Kakinoki R, Ikeguchi R, Ohta S, Noguchi T, Oda H, Matsuda S. Bridging a 30 mm defect in the canine ulnar nerve using vessel-containing conduits with implantation of bone marrow stromal cells. Microsurgery 2015; 36:316-24. [PMID: 25773965 DOI: 10.1002/micr.22391] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2014] [Revised: 01/31/2015] [Accepted: 02/13/2015] [Indexed: 01/01/2023]
Abstract
Previously, we showed that undifferentiated bone marrow stromal cell (uBMSC) implantation and vessel insertion into a nerve conduit facilitated peripheral nerve regeneration in a rodent model. In this study, we investigated the efficacy of the uBMSC-laden vessel-containing conduit in repair of segmental nerve defects, using a canine model. Eight beagle dogs were used in this study. Thirty-millimeter ulnar nerve defects were repaired with the conduits (right forelimbs, n = 8) or autografts (left forelimbs, n = 7). In the conduit group, the ulnar artery was inserted into the l-lactide/ε-caprolactone tube, which was filled with autologous uBMSCs obtained from the ilium. In the autograft group, the reversed nerve segments were sutured in situ. At 8 weeks, one dog with only nerve repair with the conduit was sacrificed and the regenerated nerve in the conduit underwent immunohistochemistry for investigation of the differentiation capability of the implanted uBMSCs. In the remaining seven dogs, the repaired nerves underwent electrophysiological examination at 12 and 24 weeks and morphometric measurements at 24 weeks. The wet weight of hypothenar muscles was measured at 24 weeks. At 8 weeks, almost 35% of the implanted uBMSCs expressed glial markers. At 12 weeks, amplitude (0.4 ± 0.4mV) and conduction velocity (18.9 ± 14.3m/s) were significantly lower in the conduit group than in the autograft group (3.2 ± 2.5 mV, 34.9 ± 12.1 m/s, P < 0.05). Although the nerve regeneration in the conduit group was inferior when compared with the autograft group at 24 weeks, there were no significant differences between both groups, regarding amplitude (10.9 ± 7.3 vs. 25.3 ± 20.1 mV; P = 0.11), conduction velocity (23.5 ± 8.7 vs 31.6 ± 20.0m/s; P = 0.35), myelinated axon number (7032 ± 4188 vs 7165 ± 1814; P = 0.94), diameter (1.73 ± 0.31 vs 2.09 ± 0.39μm; P = 0.09), or muscle weight (1.02 ± 0.40 vs 1.19 ± 0.26g; P = 0.36). In conclusion, this study showed that vessel-containing tubes with uBMSC implantation may be an option for treatment of peripheral nerve injuries. However, further investigations are needed. © 2015 Wiley Periodicals, Inc. Microsurgery 36:316-324, 2016.
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Affiliation(s)
- Yukitoshi Kaizawa
- Department of Orthopaedic Surgery, Graduate School of Medicine, Kyoto University, Kyoto Prefecture, Japan
| | - Ryosuke Kakinoki
- Department of Orthopaedic Surgery, Faculty of Medicine, Kindai University, Higashiosaka, Osaka Prefecture, Japan
| | - Ryosuke Ikeguchi
- Department of Orthopaedic Surgery, Graduate School of Medicine, Kyoto University, Kyoto Prefecture, Japan
| | - Souichi Ohta
- Department of Orthopaedic Surgery, Graduate School of Medicine, Kyoto University, Kyoto Prefecture, Japan
| | - Takashi Noguchi
- Department of Orthopaedic Surgery, Graduate School of Medicine, Kyoto University, Kyoto Prefecture, Japan
| | - Hiroki Oda
- Department of Orthopaedic Surgery, Graduate School of Medicine, Kyoto University, Kyoto Prefecture, Japan
| | - Shuichi Matsuda
- Department of Orthopaedic Surgery, Graduate School of Medicine, Kyoto University, Kyoto Prefecture, Japan
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Nucci LP, Silva HR, Giampaoli V, Mamani JB, Nucci MP, Gamarra LF. Stem cells labeled with superparamagnetic iron oxide nanoparticles in a preclinical model of cerebral ischemia: a systematic review with meta-analysis. Stem Cell Res Ther 2015; 6:27. [PMID: 25889904 PMCID: PMC4425914 DOI: 10.1186/s13287-015-0015-3] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2014] [Revised: 11/26/2014] [Accepted: 02/23/2015] [Indexed: 12/17/2022] Open
Abstract
Introduction Although there is an increase in clinical trials assessing the efficacy of cell therapy in structural and functional regeneration after stroke, there are not enough data in the literature describing the best cell type to be used, the best route, and also the best nanoparticle to analyze these stem cells in vivo. This review analyzed published data on superparamagnetic iron oxide nanoparticle (SPION)-labeled stem cells used for ischemic stroke therapy. Method We performed a systematic review and meta-analysis of data from experiments testing the efficacy of cellular treatment with SPION versus no treatment to improve behavioral or modified neural scale outcomes in animal models of stroke by the Cochrane Collaboration and indexed in EMBASE, PubMed, and Web of Science since 2000. To test the impact of study quality and design characteristics, we used random-effects meta-regression. In addition, trim and fill were used to assess publication bias. Results The search retrieved 258 articles. After application of the inclusion criteria, 24 reports published between January 2000 and October 2014 were selected. These 24 articles were analyzed for nanoparticle characteristics, stem cell types, and efficacy in animal models. Conclusion This study highlights the therapeutic role of stem cells in stroke and emphasizes nanotechnology as an important tool for monitoring stem cell migration to the affected neurological locus.
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Affiliation(s)
- Leopoldo P Nucci
- Hospital Israelita Albert Einstein, Av. Albert Einstein, 627/701, Morumbi, CEP: 05651-901, São Paulo, Brazil. .,Universidade Federal de São Paulo, Rua Sena Madureira, 1500 - Vila Clementino, 04021-001, São Paulo-SP, Brazil.
| | - Helio R Silva
- Hospital Israelita Albert Einstein, Av. Albert Einstein, 627/701, Morumbi, CEP: 05651-901, São Paulo, Brazil. .,Santa Casa Misericórdia de São Paulo, Dr. Cesario Motta Junior, 61 - Vila Buarque, 01221-020, São Paulo-SP, Brazil.
| | - Viviana Giampaoli
- Instituto de Matemática e Estatística, Universidade de São Paulo, Rua do Matão 1010 - Cidade Universitária, 05508-090, São Paulo-SP, Brazil.
| | - Javier B Mamani
- Hospital Israelita Albert Einstein, Av. Albert Einstein, 627/701, Morumbi, CEP: 05651-901, São Paulo, Brazil.
| | - Mariana P Nucci
- LIM44, Universidade de São Paulo, Rua Dr Éneas de Carvalho Aguiar, 255 - Cerqueira César, 05403-000, São Paulo-SP, Brazil.
| | - Lionel F Gamarra
- Hospital Israelita Albert Einstein, Av. Albert Einstein, 627/701, Morumbi, CEP: 05651-901, São Paulo, Brazil. .,Universidade Federal de São Paulo, Rua Sena Madureira, 1500 - Vila Clementino, 04021-001, São Paulo-SP, Brazil. .,Santa Casa Misericórdia de São Paulo, Dr. Cesario Motta Junior, 61 - Vila Buarque, 01221-020, São Paulo-SP, Brazil.
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