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Imitola J, Hollingsworth EW, Watanabe F, Olah M, Elyaman W, Starossom S, Kivisäkk P, Khoury SJ. Stat1 is an inducible transcriptional repressor of neural stem cells self-renewal program during neuroinflammation. Front Cell Neurosci 2023; 17:1156802. [PMID: 37663126 PMCID: PMC10469489 DOI: 10.3389/fncel.2023.1156802] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2023] [Accepted: 07/20/2023] [Indexed: 09/05/2023] Open
Abstract
A central issue in regenerative medicine is understanding the mechanisms that regulate the self-renewal of endogenous stem cells in response to injury and disease. Interferons increase hematopoietic stem cells during infection by activating STAT1, but the mechanisms by which STAT1 regulates intrinsic programs in neural stem cells (NSCs) during neuroinflammation is less known. Here we explored the role of STAT1 on NSC self-renewal. We show that overexpressing Stat1 in NSCs derived from the subventricular zone (SVZ) decreases NSC self-renewal capacity while Stat1 deletion increases NSC self-renewal, neurogenesis, and oligodendrogenesis in isolated NSCs. Importantly, we find upregulation of STAT1 in NSCs in a mouse model of multiple sclerosis (MS) and an increase in pathological T cells expressing IFN-γ rather than interleukin 17 (IL-17) in the cerebrospinal fluid of affected mice. We find IFN-γ is superior to IL-17 in reducing proliferation and precipitating an abnormal NSC phenotype featuring increased STAT1 phosphorylation and Stat1 and p16ink4a gene expression. Notably, Stat1-/- NSCs were resistant to the effect of IFN-γ. Lastly, we identified a Stat1-dependent gene expression profile associated with an increase in the Sox9 transcription factor, a regulator of self-renewal. Stat1 binds and transcriptionally represses Sox9 in a transcriptional luciferase assay. We conclude that Stat1 serves as an inducible checkpoint for NSC self-renewal that is upregulated during chronic brain inflammation leading to decreased self-renewal. As such, Stat1 may be a potential target to modulate for next generation therapies to prevent progression and loss of repair function in NSCs/neural progenitors in MS.
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Affiliation(s)
- Jaime Imitola
- Laboratory for Neural Stem Cells and Functional Neurogenetics, Division of Multiple Sclerosis and Neuroimmunology, University of Connecticut Health Center, Farmington, CT, United States
- Center for Neurologic Diseases, Department of Neurology, Brigham and Women’s Hospital, Harvard Medical School, Boston, MA, United States
| | - Ethan W. Hollingsworth
- Medical Scientist Training Program, University of California, Irvine, Irvine, CA, United States
| | - Fumihiro Watanabe
- Laboratory for Neural Stem Cells and Functional Neurogenetics, Division of Multiple Sclerosis and Neuroimmunology, University of Connecticut Health Center, Farmington, CT, United States
| | - Marta Olah
- Center for Neurologic Diseases, Department of Neurology, Brigham and Women’s Hospital, Harvard Medical School, Boston, MA, United States
- Department of Neurology, Columbia University Medical Center, New York City, NY, United States
| | - Wassim Elyaman
- Center for Neurologic Diseases, Department of Neurology, Brigham and Women’s Hospital, Harvard Medical School, Boston, MA, United States
- Department of Neurology, Columbia University Medical Center, New York City, NY, United States
| | - Sarah Starossom
- Center for Neurologic Diseases, Department of Neurology, Brigham and Women’s Hospital, Harvard Medical School, Boston, MA, United States
- Institute for Medical Immunology, Charité–Universitätsmedizin Berlin, Berlin, Germany
| | - Pia Kivisäkk
- Center for Neurologic Diseases, Department of Neurology, Brigham and Women’s Hospital, Harvard Medical School, Boston, MA, United States
- Alzheimer’s Clinical and Translational Research Center, Department of Neurology, Massachusetts General Hospital, Harvard Medical School, Boston, MA, United States
| | - Samia J. Khoury
- Center for Neurologic Diseases, Department of Neurology, Brigham and Women’s Hospital, Harvard Medical School, Boston, MA, United States
- Abu Haidar Neuroscience Institute, American University of Beirut Medical Center, Beirut, Lebanon
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Yousefi F, Lavi Arab F, Saeidi K, Amiri H, Mahmoudi M. Various strategies to improve efficacy of stem cell transplantation in multiple sclerosis: Focus on mesenchymal stem cells and neuroprotection. J Neuroimmunol 2018; 328:20-34. [PMID: 30557687 DOI: 10.1016/j.jneuroim.2018.11.015] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2018] [Accepted: 11/30/2018] [Indexed: 02/09/2023]
Abstract
Multiple sclerosis (MS) is an inflammatory demyelinating disease of the central nervous system (CNS) which predominantly affect young adults and undergo heavy socioeconomic burdens. Conventional therapeutic modalities for MS mostly downregulate aggressive immune responses and are almost insufficient for management of progressive course of the disease. Mesenchymal stem cells (MSCs), due to both immunomodulatory and neuroprotective properties have been known as practical cells for treatment of neurodegenerative diseases like MS. However, clinical translation of MSCs is associated with some limitations such as short-life engraftment duration, little in vivo trans-differentiation and restricted accessibility into damaged sites. Therefore, laboratory manipulation of MSCs can improve efficacy of MSCs transplantation in MS patients. In this review, we discuss several novel approaches, which can potentially enhance MSCs capabilities for treating MS.
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Affiliation(s)
- Forouzan Yousefi
- Immunology Research Center, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Fahimeh Lavi Arab
- Immunology Research Center, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Kolsoum Saeidi
- Physiology Research Center, Institute of Basic and Clinical Physiology Sciences, Kerman University of Medical Sciences, Kerman, Iran
| | - Houshang Amiri
- Neurology Research Center, Kerman University of Medical Sciences, Kerman, Iran; Department of Radiology and Nuclear Medicine, VU University Medical Center, Amsterdam, The Netherlands
| | - Mahmoud Mahmoudi
- Immunology Research Center, Mashhad University of Medical Sciences, Mashhad, Iran; Department of Immunology, Faculty of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran.
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Human Neural Stem Cells with GDNF Site-Specific Integration at AAVS1 by Using AAV Vectors Retained Their Stemness. Neurochem Res 2018; 43:930-937. [PMID: 29435804 DOI: 10.1007/s11064-018-2498-7] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2017] [Revised: 01/05/2018] [Accepted: 02/07/2018] [Indexed: 01/30/2023]
Abstract
The neural stem cells (NSCs) have the ability to self-renew, and to migrate to pathologically altered regions of the central nervous system. Glial cell derived neurotrophic factor (GDNF) could protect dopamine neurons and rescue motor neurons in vivo, which has been proposed as a promising candidate for the treatments of degenerative neurological diseases. In order to combine the advantages of neurotrophic factors and stem cells in clinical therapy, we established the modified hNSCs that has site-specific integration of GDNF gene by using recombinant adeno-associated virus (rAAV) vectors. The hNSCs were co-infected by rAAV2-EGFP-GDNF and rAAV2-SVAV2 which provide integrase to specifically integrate GDNF gene into AAVS1 site. The GDNF-hNSCs maintained their original stem cell characteristics and the ability to differentiate into neurons in vitro. In the animal model, the GDNF-hNSCs were specifically transplanted into CA1 area of hippocampi and could migrate to the dentate gyrus region and differentiate into neuronal cells while maintaining GDNF expression. hNSCs with GDNF gene site-specific integration at AAVS1 by using AAV vectors retained their stemness and effectively expressed GDNF, which indicates the potential of employing transplanted hNPCs for treatment of brain injuries and degenerative neurological diseases.
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Jahan S, Singh S, Srivastava A, Kumar V, Kumar D, Pandey A, Rajpurohit CS, Purohit AR, Khanna VK, Pant AB. PKA-GSK3β and β-Catenin Signaling Play a Critical Role in Trans-Resveratrol Mediated Neuronal Differentiation in Human Cord Blood Stem Cells. Mol Neurobiol 2017; 55:2828-2839. [PMID: 28455695 DOI: 10.1007/s12035-017-0539-x] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2017] [Accepted: 04/07/2017] [Indexed: 12/31/2022]
Abstract
The role of resveratrol (RV), a natural polyphenol, is well documented, although its role on neurogenesis is still controversial and poorly understood. Therefore, to decipher the cellular insights of RV on neurogenesis, we investigated the potential effects of the compound on the survival, proliferation, and neuronal differentiation of human cord blood-derived mesenchymal stem cells (hCBMSCs). For neuronal differentiation, purified and characterized hCBMSCs were exposed to biological safe doses of RV (10 μM) alone and in combination with nerve growth factor (NGF-50 ng). The cells exposed only to NGF (50 ng/mL) served as positive control for neuronal differentiation. The genes showing significant involvement in the process of neuronal differentiation were further funneled down at transcriptional and translational level. It was observed that RV promotes PKA-mediated neuronal differentiation in hCBMSCs by inducing canonical pathway. The studies with pharmacological inhibitors also confirmed that PKA significantly induces β-catenin expression via GSK3β induction and stimulates CREB phosphorylation and pERK1/2 induction. Besides that, the studies also revealed that RV additionally possesses the binding sites for molecules other than PKA and GSK3β, with which it interacts. The present study therefore highlights the positive impact of RV over the survival, proliferation, and neuronal differentiation in hCBMSCs via PKA-mediated induction of GSK3β, β catenin, CREB, and ERK1/2.
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Affiliation(s)
- S Jahan
- System Toxicology and Health Risk Assessment Group, CSIR-Indian Institute of Toxicology Research (CSIR-IITR), MG Marg, Lucknow, Uttar Pradesh, 226001, India
- Academy of Scientific and Innovative Research, CSIR-IITR Campus, Lucknow, India
| | - S Singh
- System Toxicology and Health Risk Assessment Group, CSIR-Indian Institute of Toxicology Research (CSIR-IITR), MG Marg, Lucknow, Uttar Pradesh, 226001, India
- Academy of Scientific and Innovative Research, CSIR-IITR Campus, Lucknow, India
| | - A Srivastava
- System Toxicology and Health Risk Assessment Group, CSIR-Indian Institute of Toxicology Research (CSIR-IITR), MG Marg, Lucknow, Uttar Pradesh, 226001, India
- BBD College of Dental Sciences, BBD University, Lucknow, Uttar Pradesh, India
| | - V Kumar
- System Toxicology and Health Risk Assessment Group, CSIR-Indian Institute of Toxicology Research (CSIR-IITR), MG Marg, Lucknow, Uttar Pradesh, 226001, India
| | - D Kumar
- System Toxicology and Health Risk Assessment Group, CSIR-Indian Institute of Toxicology Research (CSIR-IITR), MG Marg, Lucknow, Uttar Pradesh, 226001, India
- Academy of Scientific and Innovative Research, CSIR-IITR Campus, Lucknow, India
| | - A Pandey
- System Toxicology and Health Risk Assessment Group, CSIR-Indian Institute of Toxicology Research (CSIR-IITR), MG Marg, Lucknow, Uttar Pradesh, 226001, India
| | - C S Rajpurohit
- System Toxicology and Health Risk Assessment Group, CSIR-Indian Institute of Toxicology Research (CSIR-IITR), MG Marg, Lucknow, Uttar Pradesh, 226001, India
- Academy of Scientific and Innovative Research, CSIR-IITR Campus, Lucknow, India
| | - A R Purohit
- System Toxicology and Health Risk Assessment Group, CSIR-Indian Institute of Toxicology Research (CSIR-IITR), MG Marg, Lucknow, Uttar Pradesh, 226001, India
| | - V K Khanna
- System Toxicology and Health Risk Assessment Group, CSIR-Indian Institute of Toxicology Research (CSIR-IITR), MG Marg, Lucknow, Uttar Pradesh, 226001, India
- Academy of Scientific and Innovative Research, CSIR-IITR Campus, Lucknow, India
| | - A B Pant
- System Toxicology and Health Risk Assessment Group, CSIR-Indian Institute of Toxicology Research (CSIR-IITR), MG Marg, Lucknow, Uttar Pradesh, 226001, India.
- Academy of Scientific and Innovative Research, CSIR-IITR Campus, Lucknow, India.
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Ye LJ, Bian H, Fan YD, Wang ZB, Yu HL, Ma YY, Chen F. Rhesus monkey neural stem cell transplantation promotes neural regeneration in rats with hippocampal lesions. Neural Regen Res 2016; 11:1464-1470. [PMID: 27857751 PMCID: PMC5090850 DOI: 10.4103/1673-5374.191221] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022] Open
Abstract
Rhesus monkey neural stem cells are capable of differentiating into neurons and glial cells. Therefore, neural stem cell transplantation can be used to promote functional recovery of the nervous system. Rhesus monkey neural stem cells (1 × 105 cells/μL) were injected into bilateral hippocampi of rats with hippocampal lesions. Confocal laser scanning microscopy demonstrated that green fluorescent protein-labeled transplanted cells survived and grew well. Transplanted cells were detected at the lesion site, but also in the nerve fiber-rich region of the cerebral cortex and corpus callosum. Some transplanted cells differentiated into neurons and glial cells clustering along the ventricular wall, and integrated into the recipient brain. Behavioral tests revealed that spatial learning and memory ability improved, indicating that rhesus monkey neural stem cells noticeably improve spatial learning and memory abilities in rats with hippocampal lesions.
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Affiliation(s)
- Li-Juan Ye
- Department of Pathology, Third Affiliated Hospital of Kunming Medical University, Kunming, Yunnan Province, China; Kunming Institute of Zoology, Chinese Academy of Sciences, Kunming, Yunnan Province, China; Second Department of Neurosurgery, First Affiliated Hospital of Kunming Medical University, Kunming, Yunnan Province, China
| | - Hui Bian
- Department of Physiology, Kunming Medical University, Kunming, Yunnan Province, China
| | - Yao-Dong Fan
- Department of Pathology, Third Affiliated Hospital of Kunming Medical University, Kunming, Yunnan Province, China
| | - Zheng-Bo Wang
- Kunming Institute of Zoology, Chinese Academy of Sciences, Kunming, Yunnan Province, China
| | - Hua-Lin Yu
- Second Department of Neurosurgery, First Affiliated Hospital of Kunming Medical University, Kunming, Yunnan Province, China
| | - Yuan-Ye Ma
- Kunming Institute of Zoology, Chinese Academy of Sciences, Kunming, Yunnan Province, China
| | - Feng Chen
- Department of Radiology, Hainan General Hospital, Haikou, Hainan Province, China
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6
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Knippenberg S, Rath KJ, Böselt S, Thau-Habermann N, Schwarz SC, Dengler R, Wegner F, Petri S. Intraspinal administration of human spinal cord-derived neural progenitor cells in the G93A-SOD1 mouse model of ALS delays symptom progression, prolongs survival and increases expression of endogenous neurotrophic factors. J Tissue Eng Regen Med 2015; 11:751-764. [PMID: 25641599 DOI: 10.1002/term.1972] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2014] [Revised: 08/15/2014] [Accepted: 10/28/2014] [Indexed: 12/14/2022]
Abstract
Neural stem or progenitor cells are considered to be a novel therapeutic strategy for amyotrophic lateral sclerosis (ALS), based on their potential to generate a protective environment rather than to replace degenerating motor neurons. Following local injection to the spinal cord, neural progenitor cells may generate glial cells and release neurotrophic factors. In the present study, human spinal cord-derived neural progenitor cells (hscNPCs) were injected into the lumbar spinal cord of G93A-SOD1 ALS transgenic mice. We evaluated the potential effect of hscNPC treatment by survival analysis and behavioural/phenotypic assessments. Immunohistological and real-time PCR experiments were performed at a defined time point to study the underlying mechanisms. Symptom progression in hscNPC-injected mice was significantly delayed at the late stage of disease. On average, survival was only prolonged for 5 days. Animals treated with hscNPCs performed significantly better in motor function tests between weeks 18 and 19. Increased production of GDNF and IGF-1 mRNA was detectable in spinal cord tissue of hscNPC-treated mice. In summary, treatment with hscNPCs led to increased endogenous production of several growth factors and increased the preservation of innervated motor neurons but had only a small effect on overall survival. Copyright © 2015 John Wiley & Sons, Ltd.
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Affiliation(s)
| | - Klaus Jan Rath
- Department of Neurology, Hannover Medical School, Germany.,Integriertes Forschungs- und Behandlungszentrum Transplantation (IFB-Tx), Hannover Medical School, Hannover, Germany
| | - Sebastian Böselt
- Department of Neurology, Hannover Medical School, Germany.,Integriertes Forschungs- und Behandlungszentrum Transplantation (IFB-Tx), Hannover Medical School, Hannover, Germany
| | - Nadine Thau-Habermann
- Department of Neurology, Hannover Medical School, Germany.,Centre for Systems Neuroscience, Hannover, Germany
| | - Sigrid C Schwarz
- German Centre for Neurodegenerative Diseases (DZNE), Technical University of Munich, Germany
| | - Reinhard Dengler
- Department of Neurology, Hannover Medical School, Germany.,Centre for Systems Neuroscience, Hannover, Germany
| | - Florian Wegner
- Department of Neurology, Hannover Medical School, Germany.,Centre for Systems Neuroscience, Hannover, Germany
| | - Susanne Petri
- Department of Neurology, Hannover Medical School, Germany.,Centre for Systems Neuroscience, Hannover, Germany.,Integriertes Forschungs- und Behandlungszentrum Transplantation (IFB-Tx), Hannover Medical School, Hannover, Germany
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7
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Hwang DW, Park KM, Shim HK, Jin Y, Oh HJ, Oh SW, Lee S, Youn H, Joung YK, Lee HJ, Kim SU, Park KD, Lee DS. In vivo bioluminescence imaging for viable human neural stem cells incorporated within in situ gelatin hydrogels. EJNMMI Res 2014; 4:61. [PMID: 26116122 PMCID: PMC4452629 DOI: 10.1186/s13550-014-0061-3] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2014] [Accepted: 10/30/2014] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Three-dimensional (3D) hydrogel-based stem cell therapies contribute to enhanced therapeutic efficacy in treating diseases, and determining the optimal mechanical strength of the hydrogel in vivo is important for therapeutic success. We evaluated the proliferation of human neural stem cells incorporated within in situ-forming hydrogels and compared the effect of hydrogels with different elastic properties in cell/hydrogel-xenografted mice. METHODS The gelatin-polyethylene glycol-tyramine (GPT) hydrogel was fabricated through enzyme-mediated cross-linking reaction using horseradish peroxidase (HRP) and hydrogen peroxide (H2O2). RESULTS The F3-effluc encapsulated within a soft 1,800 pascal (Pa) hydrogel and stiff 5,800 Pa hydrogel proliferated vigorously in a 24-well plate until day 8. In vitro and in vivo kinetics of luciferase activity showed a slow time-to-peak after D-luciferin administration in the stiff hydrogel. When in vivo proliferation of F3-effluc was observed up to day 21 in both the hydrogel group and cell-only group, F3-effluc within the soft hydrogel proliferated more vigorously, compared to the cells within the stiff hydrogel. Ki-67-specific immunostaining revealed highly proliferative F3-effluc with compactly distributed cell population inside the 1,800 Pa or 5,800 Pa hydrogel. CONCLUSIONS We examined the in vivo effectiveness of different elastic types of hydrogels encapsulating viable neural stem cells by successfully monitoring the proliferation of implanted stem cells incorporated within a 3D hydrogel scaffold.
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Affiliation(s)
- Do Won Hwang
- Department of Nuclear Medicine, Seoul National University College of Medicine, 28 Yongon-Dong, Jongno-Gu, Seoul, 110-744, Republic of Korea,
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Interaction of Notch and gp130 Signaling in the Maintenance of Neural Stem and Progenitor Cells. Cell Mol Neurobiol 2013; 34:1-15. [DOI: 10.1007/s10571-013-9996-6] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2013] [Accepted: 09/30/2013] [Indexed: 01/10/2023]
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9
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Rescuing the neonatal brain from hypoxic injury with autologous cord blood. Bone Marrow Transplant 2012; 48:890-900. [PMID: 22964590 DOI: 10.1038/bmt.2012.169] [Citation(s) in RCA: 47] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2012] [Revised: 08/02/2012] [Accepted: 08/03/2012] [Indexed: 12/28/2022]
Abstract
Brain injury resulting from perinatal hypoxic-ischemic encephalopathy (HIE) is a major cause of acute mortality in infants and chronic neurologic disability in surviving children. Recent multicenter clinical trials demonstrated the effectiveness of hypothermia initiated within the first 6 postnatal hours to reduce the risk of death or major neurological disabilities among neonates with HIE. However, in these trials, approximately 40% of cooled infants died or survived with significant impairments. Therefore, adjunct therapies are required to improve the outcome in neonates with HIE. Cord blood (CB) is a rich source of stem cells. Administration of human CB cells in animal models of HIE has generally resulted in improved outcomes and multiple mechanisms have been suggested including anti-inflammation, release of neurotrophic factors and stimulation of endogenous neurogenesis. Investigators at Duke are conducting studies of autologous CB infusion in neonates with HIE and in children with cerebral palsy. These pilot studies indicate no added risk from the regimens used, but results of ongoing placebo-controlled trials are needed to assess efficacy. Meanwhile, further investigations are warranted to determine the best strategies, that is, timing, dosing, route of delivery, choice of stem cells and ex vivo modulations, to attain long-term benefits of CB stem cell therapy.
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Lu HX, Hao ZM, Jiao Q, Xie WL, Zhang JF, Lu YF, Cai M, Wang YY, Yang ZQ, Parker T, Liu Y. Neurotrophin-3 gene transduction of mouse neural stem cells promotes proliferation and neuronal differentiation in organotypic hippocampal slice cultures. Med Sci Monit 2012; 17:BR305-311. [PMID: 22037732 PMCID: PMC3539508 DOI: 10.12659/msm.882039] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023] Open
Abstract
BACKGROUND The transplantation of neural stem cells (NSCs) has been accepted as a promising therapeutic strategy for central nervous system disorders. However, the beneficial effect of NSC transplantation upon functional recovery is limited due to the unfavorable microenvironment (niche) at the site of trauma or degenerative disease in the brain. Combination of transplantation of NSCs with neurotrophins may overcome the hurdles of impaired cell survival and neuronal differentiation. MATERIAL/METHODS In the current study, the neurotrophin-3 (NT-3) gene was transduced into cultured mouse embryonic cortical NSCs via an AAV vector (NSC-NT-3). The effect of NT-3 over-expression on cell proliferation and differentiation in NSCs was observed by immunohistochemistry, cell culture and organotypic hippocampal slice cultures.<br /> RESULTS The characteristics of self-renewal and multiple differentiation of NSCs were well-preserved. Cells in the NSC-NT-3 group proliferated faster and differentiated into more β-tubulin III-positive neurons compared to the control group in vitro. Furthermore, cells in the NSC-NT-3 group survived in a significantly higher percentage and undertook neuronal differentiation preferably in organotypic hippocampal slice cultures. CONCLUSIONS Our results suggest that the transduction of NT-3 into NSCs could effectively promote NSCs survival, proliferation, and neuronal differentiation in vitro without change of the stemness of NSCs. This work also offers evidence to better understand the safety and efficiency of combined treatment with NT-3 and NSCs for the central nervous system disorders.
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Affiliation(s)
- Hai-xia Lu
- Institute of Neurobiology, Environment and Genes Related to Diseases Key Laboratory of Education Ministry, Xi'an Jiaotong University College of Medicine, Xi'an, PR China
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Gonzalez MA, Bernad A. Characteristics of adult stem cells. ADVANCES IN EXPERIMENTAL MEDICINE AND BIOLOGY 2012; 741:103-20. [PMID: 22457106 DOI: 10.1007/978-1-4614-2098-9_8] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Abstract
Stem cells are characterized by their unlimited ability to divide specifically; a stem cell is capable of making an immense number of copies of itself, maintaining the same characteristics. Moreover, these cells are able to generate several of the cell lineages which make up the body, including cells from the heart, liver, kidney, neurons, and muscles. Investigation of the mechanisms through which this differentiation occurs, the genes involved and the possibility of increasing the efficiency with which stem cells can be isolated and/or characterized are currently among the most important fields in biology and biomedicine.To date, stems cells have been identified from four different sources: Embryonic stem cells (ESC), germinal stem cells, and those derived from embryonic carcinomas (teratocarcinomas) and from somatic tissues (somatic stem cells). The latter are called adult stem cells (ASC) when they are found in postnatal tissues. We now know that there is a great diversity among ASC, with some tissues, such as the bone marrow, containing more than one type of ASC. Adult stem cells have several characteristics that make them to be the main players in current regenerative medicine and are being investigated as potential therapeutic agents for a wide variety of diseases. Specifically, HSC and MSC are being assessed in increasing numbers of clinical trials.
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Affiliation(s)
- Manuel A Gonzalez
- Department of Regenerative Cardiology, Spanish National Centre for Cardiovascular Research, Madrid, Spain
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Kaeser M, Brunet JF, Wyss A, Belhaj-Saif A, Liu Y, Hamadjida A, Rouiller EM, Bloch J. Autologous Adult Cortical Cell Transplantation Enhances Functional Recovery Following Unilateral Lesion of Motor Cortex in Primates: A Pilot Study. Neurosurgery 2011; 68:1405-16; discussion 1416-7. [DOI: 10.1227/neu.0b013e31820c02c0] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2023] Open
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Abstract
Neurodegenerative diseases are characterized by neurodegenerative changes or apoptosis of neurons involved in networks, leading to permanent paralysis and loss of sensation below the site of the injury. Cell replacement therapy has provided the basis for the development of potentially powerful new therapeutic strategies for a broad spectrum of human neurological diseases. In recent years, neurons and glial cells have successfully been generated from stem cells, and extensive efforts by investigators to develop stem cell-based brain transplantation therapies have been carried out. We review here notable previously published experimental and preclinical studies involving stem cell-based cell for neurodegenerative diseases and discuss the future prospects for stem cell therapy of neurological disorders in the clinical setting. Steady and solid progress in stem cell research in both basic and preclinical settings should support the hope for development of stem cell-based cell therapies for neurological diseases.
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Affiliation(s)
| | | | | | - Ning Zhang
- Author to whom correspondence should be addressed; E-Mail: ; Tel.: +86 57186021763; Fax: +86 57187022776
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14
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Yan H, Pu XP. Expression of the Parkinson's disease-related protein DJ-1 during neural stem cell proliferation. Biol Pharm Bull 2010; 33:18-21. [PMID: 20045929 DOI: 10.1248/bpb.33.18] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Neural stem cells (NSCs) arise through neurogenesis, and comprise all newly-formed neurons in the central and peripheral nervous systems. DJ-1 is associated with autosomal recessive familial Parkinson's disease (PD). The relationship between DJ-1 and NSC proliferation may shed light on the underlying pathogenesis of, and potential treatments for, PD. To investigate the relationship between DJ-1 and NSCs, embryonic cortical NSCs were isolated and cultured from E14 fetal rats. Immunocytochemistry, flow cytometry, and immunohistochemistry were applied to evaluate DJ-1 expression in proliferating NSCs. We found that DJ-1 was co-expressed with nestin, a marker of progenitors, during NSC proliferation from days 1-7. The present results suggest that DJ-1 is co-expressed with nestin in NSCs during proliferation.
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Affiliation(s)
- Hui Yan
- State Key Research Laboratory of Natural and Biomimetic Drugs, Peking University, Beijing, China
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15
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Bai Y, Meng Z, Cui M, Zhang X, Chen F, Xiao J, Shen L, Zhang Y. An Ang1-Tie2-PI3K axis in neural progenitor cells initiates survival responses against oxygen and glucose deprivation. Neuroscience 2009; 160:371-81. [PMID: 19409199 DOI: 10.1016/j.neuroscience.2009.01.076] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2008] [Revised: 01/23/2009] [Accepted: 01/23/2009] [Indexed: 12/25/2022]
Abstract
Neural progenitor cells (NPCs) have the potential to survive brain ischemia and participate in neurogenesis after stroke. However, it is not clear how survival responses are initiated in NPCs. Using embryonic mouse NPCs and the in vitro oxygen and glucose deprivation (OGD) model, we found that angiopoietin-1 (Ang1) could prevent NPCs from OGD-induced apoptosis, as evidenced by terminal deoxynucleotidyl transferase-mediated dUTP nick end labeling and annexin V labeling. Ang1 significantly elevated tunica intima endothelial kinase 2 (Tie2) autophosphorylation level, suggesting the existence of functional Tie2 receptors on NPCs. NPCs under OGD conditions exhibited reduction of Akt phosphorylation, decrease of the Bcl-2/Bax ratio, activation of caspase-3, cleavage of PARP, and downregulation of beta-catenin and nestin. Ang1 reversed the above changes concomitantly with significant rising of survival rates of NPCs under OGD, but all these effects of Ang1 could be blocked by either soluble extracellular domain of Tie2 Fc fusion protein (sTie2Fc) or the phosphoinositide 3-kinase (PI3K) inhibitor 2-(4-morpholinyl)-8-phenyl-1(4H)-benzopyran-4-one (LY294002). Our findings suggest the existence of an Ang1-Tie2-PI3K signaling axis that is essential in initiation of survival responses in NPCs against cerebral ischemia and hypoxia.
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Affiliation(s)
- Y Bai
- Department of Cell Biology, School of Basic Medical Sciences, Peking University Health Science Center, 38 XueYuan Road, Beijing, 100191, China
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The role of animal models in evaluating reasonable safety and efficacy for human trials of cell-based interventions for neurologic conditions. J Cereb Blood Flow Metab 2009; 29:1-9. [PMID: 18728679 PMCID: PMC2682696 DOI: 10.1038/jcbfm.2008.98] [Citation(s) in RCA: 28] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
Progress in regenerative medicine seems likely to produce new treatments for neurologic conditions that use human cells as therapeutic agents; at least one trial for such an intervention is already under way. The development of cell-based interventions for neurologic conditions (CBI-NCs) will likely include preclinical studies using animals as models for humans with conditions of interest. This paper explores predictive validity challenges and the proper role for animal models in developing CBI-NCs. In spite of limitations, animal models are and will remain an essential tool for gathering data in advance of first-in-human clinical trials. The goal of this paper is to provide a realistic lens for viewing the role of animal models in the context of CBI-NCs and to provide recommendations for moving forward through this challenging terrain.
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Åkesson E, Sandelin M, Kanaykina N, Aldskogius H, Kozlova EN. Long-Term Survival, Robust Neuronal Differentiation, and Extensive Migration of Human Forebrain Stem/Progenitor Cells Transplanted to the Adult Rat Dorsal Root Ganglion Cavity. Cell Transplant 2008; 17:1115-23. [DOI: 10.3727/096368908787236585] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022] Open
Abstract
Neurons in dorsal root ganglia (DRGs) transmit sensory information from peripheral tissues to the spinal cord. This pathway can be interrupted, for example, as the result of physical violence, traffic accidents, or complications during child delivery. As a consequence, the patient permanently loses sensation and often develops intractable neuropathic pain in the denervated area. Here we investigate whether human neural stem/progenitor cells (hNSPCs) transplanted to the DRG cavity can serve as a source for repairing lost peripheral sensory connections. We found that hNSPCs robustly differentiate to neurons, which survive long-term transplantation. The neuronal population in the transplants was tightly surrounded by astrocytes, suggesting their active role in neuron survival. Furthermore, 3 months after grafting hNSPCs were found in the dorsal root transitional zone (DRTZ) and within the spinal cord. The level of differentiation of transplanted cells was high in the core of the transplants whereas cells that migrated to the DRTZ and spinal cord were undifferentiated, nestin-expressing precursors. These data indicate that peripherally transplanted hNPSCs can be used for repair of dorsal root avulsion or spinal cord injuries; however, additional factors are required to guide their differentiation to the desired type of neurons. Furthermore, hNPSCs that migrate from the DRG cavity graft site to the DRTZ and spinal cord may provide trophic support for regenerating dorsal root axons, thereby allowing them to reenter the host spinal cord.
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Affiliation(s)
- Elisabet Åkesson
- Division of Neurodegeneration, Department of Neurobiology, Care Sciences and Society, Karolinska Institutet, Stockholm, Sweden
| | - Martin Sandelin
- Department of Neuroscience, Neuroanatomy, Uppsala University Biomedical Center, Uppsala, Sweden
| | - Nadezda Kanaykina
- Department of Neuroscience, Neuroanatomy, Uppsala University Biomedical Center, Uppsala, Sweden
| | - Hákan Aldskogius
- Department of Neuroscience, Neuroanatomy, Uppsala University Biomedical Center, Uppsala, Sweden
| | - Elena N. Kozlova
- Division of Neurodegeneration, Department of Neurobiology, Care Sciences and Society, Karolinska Institutet, Stockholm, Sweden
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CXCR4 signaling in the regulation of stem cell migration and development. J Neuroimmunol 2008; 198:31-8. [PMID: 18508132 DOI: 10.1016/j.jneuroim.2008.04.008] [Citation(s) in RCA: 129] [Impact Index Per Article: 8.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2008] [Accepted: 04/10/2008] [Indexed: 01/10/2023]
Abstract
The regulated migration of stem cells is a feature of the development of all tissues and also of a number of pathologies. In the former situation the migration of stem cells over large distances is required for the correct formation of the embryo. In addition, stem cells are deposited in niche like regions in adult tissues where they can be called upon for tissue regeneration and repair. The migration of cancer stem cells is a feature of the metastatic nature of this disease. In this article we discuss observations that have demonstrated the important role of chemokine signaling in the regulation of stem cell migration in both normal and pathological situations. It has been demonstrated that the chemokine receptor CXCR4 is expressed in numerous types of embryonic and adult stem cells and the chemokine SDF-1/CXCL12 has chemoattractant effects on these cells. Animals in which SDF-1/CXCR4 signaling has been interrupted exhibit numerous phenotypes that can be explained as resulting from inhibition of SDF-1 mediated chemoattraction of stem cells. Hence, CXCR4 signaling is a key element in understanding the functions of stem cells in normal development and in diverse pathological situations.
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