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Li Y, Dittmann NL, Watson AES, de Almeida MMA, Footz T, Voronova A. Hepatoma Derived Growth Factor Enhances Oligodendrocyte Genesis from Subventricular Zone Precursor Cells. ASN Neuro 2022; 14:17590914221086340. [PMID: 35293825 PMCID: PMC8943302 DOI: 10.1177/17590914221086340] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
Abstract
Oligodendrocytes, the myelinating cells of the central nervous system (CNS), perform vital functions in neural protection and communication, as well as cognition. Enhanced production of oligodendrocytes has been identified as a therapeutic approach for neurodegenerative and neurodevelopmental disorders. In the postnatal brain, oligodendrocytes are generated from the neural stem and precursor cells (NPCs) in the subventricular zone (SVZ) and parenchymal oligodendrocyte precursor cells (OPCs). Here, we demonstrate exogenous Hepatoma Derived Growth Factor (HDGF) enhances oligodendrocyte genesis from murine postnatal SVZ NPCs in vitro without affecting neurogenesis or astrogliogenesis. We further show that this is achieved by increasing proliferation of both NPCs and OPCs, as well as OPC differentiation into oligodendrocytes. In vivo results demonstrate that intracerebroventricular infusion of HDGF leads to increased oligodendrocyte genesis from SVZ NPCs, as well as OPC proliferation. Our results demonstrate a novel role for HDGF in regulating SVZ precursor cell proliferation and oligodendrocyte differentiation.
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Affiliation(s)
- Yutong Li
- Department of Medical Genetics, Faculty of Medicine and Dentistry, University of Alberta, Edmonton, Alberta, T6G 2H7, Canada
| | - Nicole Leanne Dittmann
- Department of Medical Genetics, Faculty of Medicine and Dentistry, University of Alberta, Edmonton, Alberta, T6G 2H7, Canada
- Neuroscience and Mental Health Institute, Faculty of Medicine and Dentistry, University of Alberta, Edmonton, Alberta, T6G 2E1, Canada
| | - Adrianne Eve Scovil Watson
- Department of Medical Genetics, Faculty of Medicine and Dentistry, University of Alberta, Edmonton, Alberta, T6G 2H7, Canada
| | - Monique Marylin Alves de Almeida
- Department of Medical Genetics, Faculty of Medicine and Dentistry, University of Alberta, Edmonton, Alberta, T6G 2H7, Canada
- Neuroscience and Mental Health Institute, Faculty of Medicine and Dentistry, University of Alberta, Edmonton, Alberta, T6G 2E1, Canada
| | - Tim Footz
- Department of Medical Genetics, Faculty of Medicine and Dentistry, University of Alberta, Edmonton, Alberta, T6G 2H7, Canada
| | - Anastassia Voronova
- Department of Medical Genetics, Faculty of Medicine and Dentistry, University of Alberta, Edmonton, Alberta, T6G 2H7, Canada
- Neuroscience and Mental Health Institute, Faculty of Medicine and Dentistry, University of Alberta, Edmonton, Alberta, T6G 2E1, Canada
- Women and Children’s Health Research Institute, 5-083 Edmonton Clinic Health Academy, University of Alberta, 11405 87 Avenue NW Edmonton, Alberta, Canada, T6G 1C9
- Department of Cell Biology, Faculty of Medicine and Dentistry, University of Alberta, Edmonton, Alberta, T6G 2H7, Canada
- Multiple Sclerosis Centre, Faculty of Medicine and Dentistry, University of Alberta, Edmonton, Alberta, T6G 2H7, Canada
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Gu X, Li X, Jin Y, Zhang Z, Li M, Liu D, Wei F. CDR1as regulated by hnRNPM maintains stemness of periodontal ligament stem cells via miR-7/KLF4. J Cell Mol Med 2021; 25:4501-4515. [PMID: 33837664 PMCID: PMC8093972 DOI: 10.1111/jcmm.16541] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2020] [Revised: 03/01/2021] [Accepted: 03/24/2021] [Indexed: 12/21/2022] Open
Abstract
CDR1as is a well‐identified circular RNA with regulatory roles in a variety of physiological processes. However, the effects of CDR1as on stemness of periodontal ligament stem cells (PDLSCs) and the underlying mechanisms remain unclear. In this study, we detect CDR1as in human PDLSCs, and subsequently demonstrate that CDR1as maintains PDLSC stemness. Knockdown of CDR1as decreases the expression levels of stemness‐related genes and impairs the cell's multi‐differentiation and cell migration abilities, while overexpression of CDR1as increases the expression levels of stemness‐related genes and enhances these abilities. Furthermore, our results indicate that the RNA‐binding protein hnRNPM directly interacts with CDR1as and regulates its expression in PDLSCs. In addition, we show that CDR1as promotes the expression of stemness‐related genes in PDLSCs by inhibiting miR‐7‐mediated suppression of KLF4 expression. Collectively, our results demonstrate that CDR1as participates in the molecular circuitry that regulates PDLSC stemness.
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Affiliation(s)
- Xiuge Gu
- Department of Orthodontics, School and Hospital of Stomatology, Shandong University & Shandong Provincial Key Laboratory of Oral Tissue Regeneration & Shandong Engineering Laboratory for Dental Materials and Oral Tissue Regeneration, Jinan, China
| | - Xiaoyu Li
- Department of Orthodontics, School and Hospital of Stomatology, Shandong University & Shandong Provincial Key Laboratory of Oral Tissue Regeneration & Shandong Engineering Laboratory for Dental Materials and Oral Tissue Regeneration, Jinan, China
| | - Ye Jin
- Department of Orthodontics, School and Hospital of Stomatology, Shandong University & Shandong Provincial Key Laboratory of Oral Tissue Regeneration & Shandong Engineering Laboratory for Dental Materials and Oral Tissue Regeneration, Jinan, China
| | - Zijie Zhang
- Department of Orthodontics, School and Hospital of Stomatology, Shandong University & Shandong Provincial Key Laboratory of Oral Tissue Regeneration & Shandong Engineering Laboratory for Dental Materials and Oral Tissue Regeneration, Jinan, China
| | - Mengying Li
- Department of Orthodontics, School and Hospital of Stomatology, Shandong University & Shandong Provincial Key Laboratory of Oral Tissue Regeneration & Shandong Engineering Laboratory for Dental Materials and Oral Tissue Regeneration, Jinan, China
| | - Dongxu Liu
- Department of Orthodontics, School and Hospital of Stomatology, Shandong University & Shandong Provincial Key Laboratory of Oral Tissue Regeneration & Shandong Engineering Laboratory for Dental Materials and Oral Tissue Regeneration, Jinan, China
| | - Fulan Wei
- Department of Orthodontics, School and Hospital of Stomatology, Shandong University & Shandong Provincial Key Laboratory of Oral Tissue Regeneration & Shandong Engineering Laboratory for Dental Materials and Oral Tissue Regeneration, Jinan, China
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3
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Li Y, Zhang LN, Chong L, Liu Y, Xi FY, Zhang H, Duan XL. Prenatal ethanol exposure impairs the formation of radial glial fibers and promotes the transformation of GFAPδ‑positive radial glial cells into astrocytes. Mol Med Rep 2021; 23:274. [PMID: 33576465 PMCID: PMC7893684 DOI: 10.3892/mmr.2021.11913] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2020] [Accepted: 01/12/2021] [Indexed: 12/19/2022] Open
Abstract
During embryonic cortical development, radial glial cells (RGCs) are the major source of neurons, and these also serve as a supportive scaffold to guide neuronal migration. Similar to Vimentin, glial fibrillary acidic protein (GFAP) is one of the major intermediate filament proteins present in glial cells. Previous studies confirmed that prenatal ethanol exposure (PEE) significantly affected the levels of GFAP and increased the disassembly of radial glial fibers. GFAPδ is a variant of GFAP that is specifically expressed in RGCs; however, to the best of our knowledge, there are no reports regarding how PEE influences its expression during cortical development. In the present study, the effects of PEE on the expression and distribution of GFAPδ during early cortical development were assessed. It was found that PEE significantly decreased the expression levels of GFAP and GFAPδ. Using double immunostaining, GFAPδ was identified to be specifically expressed in apical and basal RGCs, and was co‑localized with other intermediate filament proteins, such as GFAP, Nestin and Vimentin. Additionally, PEE significantly affected the morphology of radial glial fibers and altered the behavior of RGCs. The loss of GFAPδ accelerated the transformation of RGCs into astrocytes. Using co‑immunostaining with Ki67 or phospho‑histone H3, GFAPδ+ cells were observed to be proliferative or mitotic cells, and ethanol treatment significantly decreased the proliferative or mitotic activities of GFAPδ+ RGCs. Taken together, the results suggested that PEE altered the expression patterns of GFAPδ and impaired the development of radial glial fibers and RGC behavior. The results of the present study provided evidence that GFAPδ may be a promising target to rescue the damage induced by PEE.
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Affiliation(s)
- Yu Li
- Department of Infectious Diseases, Shaanxi Provincial People's Hospital and The Affiliated Hospital of Xi'an Medical University, Xi'an, Shaanxi 710068, P.R. China
- Shaanxi Center for Models of Clinical Medicine in International Cooperation of Science and Technology, Shaanxi Provincial People's Hospital and The Affiliated Hospital of Xi'an Medical University, Xi'an, Shaanxi 710068, P.R. China
| | - Li-Na Zhang
- The Third Department of Neurology, Shaanxi Provincial People's Hospital and The Affiliated Hospital of Xi'an Medical University, Xi'an, Shaanxi 710068, P.R. China
| | - Li Chong
- The Third Department of Neurology, Shaanxi Provincial People's Hospital and The Affiliated Hospital of Xi'an Medical University, Xi'an, Shaanxi 710068, P.R. China
| | - Yue Liu
- The Third Department of Neurology, Shaanxi Provincial People's Hospital and The Affiliated Hospital of Xi'an Medical University, Xi'an, Shaanxi 710068, P.R. China
| | - Feng-Yu Xi
- Department of Clinical Laboratory, Shaanxi Provincial People's Hospital and The Affiliated Hospital of Xi'an Medical University, Xi'an, Shaanxi 710068, P.R. China
| | - Hong Zhang
- Department of Infectious Diseases, Shaanxi Provincial People's Hospital and The Affiliated Hospital of Xi'an Medical University, Xi'an, Shaanxi 710068, P.R. China
| | - Xiang-Long Duan
- Shaanxi Center for Models of Clinical Medicine in International Cooperation of Science and Technology, Shaanxi Provincial People's Hospital and The Affiliated Hospital of Xi'an Medical University, Xi'an, Shaanxi 710068, P.R. China
- The Second Department of General Surgery, Shaanxi Provincial People's Hospital and The Third Affiliated Hospital, School of Medicine, Xi'an Jiaotong University, Xi'an, Shaanxi 710068, P.R. China
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4
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Lombard A, Digregorio M, Delcamp C, Rogister B, Piette C, Coppieters N. The Subventricular Zone, a Hideout for Adult and Pediatric High-Grade Glioma Stem Cells. Front Oncol 2021; 10:614930. [PMID: 33575218 PMCID: PMC7870981 DOI: 10.3389/fonc.2020.614930] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2020] [Accepted: 12/09/2020] [Indexed: 12/23/2022] Open
Abstract
Both in adult and children, high-grade gliomas (WHO grades III and IV) account for a high proportion of death due to cancer. This poor prognosis is a direct consequence of tumor recurrences occurring within few months despite a multimodal therapy consisting of a surgical resection followed by chemotherapy and radiotherapy. There is increasing evidence that glioma stem cells (GSCs) contribute to tumor recurrences. In fact, GSCs can migrate out of the tumor mass and reach the subventricular zone (SVZ), a neurogenic niche persisting after birth. Once nested in the SVZ, GSCs can escape a surgical intervention and resist to treatments. The present review will define GSCs and describe their similarities with neural stem cells, residents of the SVZ. The architectural organization of the SVZ will be described both for humans and rodents. The migratory routes taken by GSCs to reach the SVZ and the signaling pathways involved in their migration will also be described hereafter. In addition, we will debate the advantages of the microenvironment provided by the SVZ for GSCs and how this could contribute to tumor recurrences. Finally, we will discuss the clinical relevance of the SVZ in adult GBM and pediatric HGG and the therapeutic advantages of targeting that neurogenic region in both clinical situations.
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Affiliation(s)
- Arnaud Lombard
- Laboratory of Nervous System Disorders and Therapy, Groupement Interdisciplinaire de Génoprotéomique Appliquée (GIGA)-Neurosciences Research Centre, University of Liège, Liège, Belgium.,Department of Neurosurgery, CHU of Liège, Liège, Belgium
| | - Marina Digregorio
- Laboratory of Nervous System Disorders and Therapy, Groupement Interdisciplinaire de Génoprotéomique Appliquée (GIGA)-Neurosciences Research Centre, University of Liège, Liège, Belgium
| | - Clément Delcamp
- Laboratory of Nervous System Disorders and Therapy, Groupement Interdisciplinaire de Génoprotéomique Appliquée (GIGA)-Neurosciences Research Centre, University of Liège, Liège, Belgium
| | - Bernard Rogister
- Laboratory of Nervous System Disorders and Therapy, Groupement Interdisciplinaire de Génoprotéomique Appliquée (GIGA)-Neurosciences Research Centre, University of Liège, Liège, Belgium.,Department of Neurology, CHU of Liège, Liège, Belgium
| | - Caroline Piette
- Laboratory of Nervous System Disorders and Therapy, Groupement Interdisciplinaire de Génoprotéomique Appliquée (GIGA)-Neurosciences Research Centre, University of Liège, Liège, Belgium.,Department of Pediatrics, Division of Hematology-Oncology, CHU of Liège, Liège, Belgium
| | - Natacha Coppieters
- Laboratory of Nervous System Disorders and Therapy, Groupement Interdisciplinaire de Génoprotéomique Appliquée (GIGA)-Neurosciences Research Centre, University of Liège, Liège, Belgium
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5
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Yamakawa M, Santosa SM, Chawla N, Ivakhnitskaia E, Del Pino M, Giakas S, Nadel A, Bontu S, Tambe A, Guo K, Han KY, Cortina MS, Yu C, Rosenblatt MI, Chang JH, Azar DT. Transgenic models for investigating the nervous system: Currently available neurofluorescent reporters and potential neuronal markers. Biochim Biophys Acta Gen Subj 2020; 1864:129595. [PMID: 32173376 DOI: 10.1016/j.bbagen.2020.129595] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2019] [Revised: 02/24/2020] [Accepted: 03/03/2020] [Indexed: 02/06/2023]
Abstract
Recombinant DNA technologies have enabled the development of transgenic animal models for use in studying a myriad of diseases and biological states. By placing fluorescent reporters under the direct regulation of the promoter region of specific marker proteins, these models can localize and characterize very specific cell types. One important application of transgenic species is the study of the cytoarchitecture of the nervous system. Neurofluorescent reporters can be used to study the structural patterns of nerves in the central or peripheral nervous system in vivo, as well as phenomena involving embryologic or adult neurogenesis, injury, degeneration, and recovery. Furthermore, crucial molecular factors can also be screened via the transgenic approach, which may eventually play a major role in the development of therapeutic strategies against diseases like Alzheimer's or Parkinson's. This review describes currently available reporters and their uses in the literature as well as potential neural markers that can be leveraged to create additional, robust transgenic models for future studies.
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Affiliation(s)
- Michael Yamakawa
- Department of Ophthalmology and Visual Sciences, Illinois Eye and Ear Infirmary, College of Medicine, University of Illinois at Chicago, Chicago, IL, United States of America
| | - Samuel M Santosa
- Department of Ophthalmology and Visual Sciences, Illinois Eye and Ear Infirmary, College of Medicine, University of Illinois at Chicago, Chicago, IL, United States of America
| | - Neeraj Chawla
- Department of Ophthalmology and Visual Sciences, Illinois Eye and Ear Infirmary, College of Medicine, University of Illinois at Chicago, Chicago, IL, United States of America
| | - Evguenia Ivakhnitskaia
- Department of Ophthalmology and Visual Sciences, Illinois Eye and Ear Infirmary, College of Medicine, University of Illinois at Chicago, Chicago, IL, United States of America
| | - Matthew Del Pino
- Department of Ophthalmology and Visual Sciences, Illinois Eye and Ear Infirmary, College of Medicine, University of Illinois at Chicago, Chicago, IL, United States of America
| | - Sebastian Giakas
- Department of Ophthalmology and Visual Sciences, Illinois Eye and Ear Infirmary, College of Medicine, University of Illinois at Chicago, Chicago, IL, United States of America
| | - Arnold Nadel
- Department of Ophthalmology and Visual Sciences, Illinois Eye and Ear Infirmary, College of Medicine, University of Illinois at Chicago, Chicago, IL, United States of America
| | - Sneha Bontu
- Department of Ophthalmology and Visual Sciences, Illinois Eye and Ear Infirmary, College of Medicine, University of Illinois at Chicago, Chicago, IL, United States of America
| | - Arjun Tambe
- Department of Ophthalmology and Visual Sciences, Illinois Eye and Ear Infirmary, College of Medicine, University of Illinois at Chicago, Chicago, IL, United States of America
| | - Kai Guo
- Department of Ophthalmology and Visual Sciences, Illinois Eye and Ear Infirmary, College of Medicine, University of Illinois at Chicago, Chicago, IL, United States of America
| | - Kyu-Yeon Han
- Department of Ophthalmology and Visual Sciences, Illinois Eye and Ear Infirmary, College of Medicine, University of Illinois at Chicago, Chicago, IL, United States of America
| | - Maria Soledad Cortina
- Department of Ophthalmology and Visual Sciences, Illinois Eye and Ear Infirmary, College of Medicine, University of Illinois at Chicago, Chicago, IL, United States of America
| | - Charles Yu
- Department of Ophthalmology and Visual Sciences, Illinois Eye and Ear Infirmary, College of Medicine, University of Illinois at Chicago, Chicago, IL, United States of America
| | - Mark I Rosenblatt
- Department of Ophthalmology and Visual Sciences, Illinois Eye and Ear Infirmary, College of Medicine, University of Illinois at Chicago, Chicago, IL, United States of America
| | - Jin-Hong Chang
- Department of Ophthalmology and Visual Sciences, Illinois Eye and Ear Infirmary, College of Medicine, University of Illinois at Chicago, Chicago, IL, United States of America.
| | - Dimitri T Azar
- Department of Ophthalmology and Visual Sciences, Illinois Eye and Ear Infirmary, College of Medicine, University of Illinois at Chicago, Chicago, IL, United States of America.
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6
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Baldauf C, Sondhi M, Shin BC, Ko YE, Ye X, Lee KW, Devaskar SU. Murine maternal dietary restriction affects neural Humanin expression and cellular profile. J Neurosci Res 2019; 98:902-920. [PMID: 31840315 DOI: 10.1002/jnr.24568] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2018] [Revised: 11/06/2019] [Accepted: 11/15/2019] [Indexed: 11/10/2022]
Abstract
To understand the cellular basis for the neurodevelopmental effects of intrauterine growth restriction (IUGR), we examined the global and regional expression of various cell types within murine (Mus musculus) fetal brain. Our model employed maternal calorie restriction to 50% daily food intake from gestation day 10-19, producing IUGR offspring. Offspring had smaller head sizes with larger head:body ratios indicating a head sparing IUGR effect. IUGR fetuses at embryonic day 19 (E19) had reduced nestin (progenitors), β-III tubulin (immature neurons), Glial fibrillary acidic protein (astrocytes), and O4 (oligodendrocytes) cell lineages via immunofluorescence quantification and a 30% reduction in cortical thickness. No difference was found in Bcl-2 or Bax (apoptosis) between controls and IUGR, though qualitatively, immunoreactivity of doublecortin (migration) and Ki67 (proliferation) was decreased. In the interest of examining a potential therapeutic peptide, we next investigated a novel pro-survival peptide, mouse Humanin (mHN). Ontogeny examination revealed highest mHN expression at E19, diminishing by postnatal day 15 (P15), and nearly absent in adult (3 months). Subanalysis by sex at E19 yielded higher mHN expression among males during fetal life, without significant difference between sexes postnatally. Furthermore, female IUGR mice at E19 had a greater increase in cortical mHN versus the male fetus over their respective controls. We conclude that maternal dietary restriction-associated IUGR interferes with neural progenitors differentiating into the various cellular components populating the cerebral cortex, and reduces cerebral cortical size. mHN expression is developmental stage and sex specific, with IUGR, particularly in the females, adaptively increasing its expression toward mediating a pro-survival approach against nutritional adversity.
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Affiliation(s)
- Claire Baldauf
- Department of Pediatrics, Division of Neonatology & Developmental Biology, UCLA Children's Discovery and Innovation Institute, David Geffen School of Medicine at the University of California, Los Angeles, Los Angeles, CA, USA
| | - Monica Sondhi
- Department of Pediatrics, Division of Neonatology & Developmental Biology, UCLA Children's Discovery and Innovation Institute, David Geffen School of Medicine at the University of California, Los Angeles, Los Angeles, CA, USA
| | - Bo-Chul Shin
- Department of Pediatrics, Division of Neonatology & Developmental Biology, UCLA Children's Discovery and Innovation Institute, David Geffen School of Medicine at the University of California, Los Angeles, Los Angeles, CA, USA
| | - Young Eun Ko
- Department of Pediatrics, Division of Neonatology & Developmental Biology, UCLA Children's Discovery and Innovation Institute, David Geffen School of Medicine at the University of California, Los Angeles, Los Angeles, CA, USA
| | - Xin Ye
- Department of Pediatrics, Division of Neonatology & Developmental Biology, UCLA Children's Discovery and Innovation Institute, David Geffen School of Medicine at the University of California, Los Angeles, Los Angeles, CA, USA
| | - Kuk-Wha Lee
- Department of Pediatrics, Division of Endocrinology, Neonatal Research Center of the UCLA Children's Discovery and Innovation Institute, David Geffen School of Medicine at the University of California, Los Angeles, Los Angeles, CA, USA
| | - Sherin U Devaskar
- Department of Pediatrics, Division of Neonatology & Developmental Biology, UCLA Children's Discovery and Innovation Institute, David Geffen School of Medicine at the University of California, Los Angeles, Los Angeles, CA, USA
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Zeng J, Wang Y, Luo Z, Chang LC, Yoo JS, Yan H, Choi Y, Xie X, Deverman BE, Gradinaru V, Gupton SL, Zlokovic BV, Zhao Z, Jung JU. TRIM9-Mediated Resolution of Neuroinflammation Confers Neuroprotection upon Ischemic Stroke in Mice. Cell Rep 2019; 27:549-560.e6. [PMID: 30970257 PMCID: PMC6485958 DOI: 10.1016/j.celrep.2018.12.055] [Citation(s) in RCA: 33] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2018] [Revised: 08/26/2018] [Accepted: 12/12/2018] [Indexed: 12/31/2022] Open
Abstract
Excessive and unresolved neuroinflammation is a key component of the pathological cascade in brain injuries such as ischemic stroke. Here, we report that TRIM9, a brain-specific tripartite motif (TRIM) protein, was highly expressed in the peri-infarct areas shortly after ischemic insults in mice, but expression was decreased in aged mice, which are known to have increased neuroinflammation after stroke. Mechanistically, TRIM9 sequestered β-transducin repeat-containing protein (β-TrCP) from the Skp-Cullin-F-box ubiquitin ligase complex, blocking IκBα degradation and thereby dampening nuclear factor κB (NF-κB)-dependent proinflammatory mediator production and immune cell infiltration to limit neuroinflammation. Consequently, Trim9-deficient mice were highly vulnerable to ischemia, manifesting uncontrolled neuroinflammation and exacerbated neuropathological outcomes. Systemic administration of a recombinant TRIM9 adeno-associated virus that drove brain-wide TRIM9 expression effectively resolved neuroinflammation and alleviated neuronal death, especially in aged mice. These findings reveal that TRIM9 is essential for resolving NF-κB-dependent neuroinflammation to promote recovery and repair after brain injury and may represent an attractive therapeutic target.
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Affiliation(s)
- Jianxiong Zeng
- Department of Molecular Microbiology and Immunology, Keck School of Medicine, University of Southern California, Los Angeles, CA 90033, USA
| | - Yaoming Wang
- Department of Physiology and Neuroscience, Keck School of Medicine, University of Southern California, Los Angeles, CA 90033, USA; Zilkha Neurogenetic Institute, Keck School of Medicine, University of Southern California, Los Angeles, CA 90033, USA
| | - Zhifei Luo
- Department of Biochemistry and Molecular Medicine, Keck School of Medicine, University of Southern California, Los Angeles, CA 90033, USA
| | - Lin-Chun Chang
- Department of Molecular Microbiology and Immunology, Keck School of Medicine, University of Southern California, Los Angeles, CA 90033, USA
| | - Ji Seung Yoo
- Department of Molecular Microbiology and Immunology, Keck School of Medicine, University of Southern California, Los Angeles, CA 90033, USA
| | - Huan Yan
- Department of Molecular Microbiology and Immunology, Keck School of Medicine, University of Southern California, Los Angeles, CA 90033, USA
| | - Younho Choi
- Department of Molecular Microbiology and Immunology, Keck School of Medicine, University of Southern California, Los Angeles, CA 90033, USA
| | - Xiaochun Xie
- Department of Physiology and Neuroscience, Keck School of Medicine, University of Southern California, Los Angeles, CA 90033, USA; Zilkha Neurogenetic Institute, Keck School of Medicine, University of Southern California, Los Angeles, CA 90033, USA
| | - Benjamin E Deverman
- Division of Biology and Biological Engineering, California Institute of Technology, Pasadena, CA 91125, USA
| | - Viviana Gradinaru
- Division of Biology and Biological Engineering, California Institute of Technology, Pasadena, CA 91125, USA
| | - Stephanie L Gupton
- Neuroscience Center and Curriculum in Neurobiology, University of North Carolina at Chapel Hill, Chapel Hill, NC 27599, USA; Department of Cell Biology and Physiology, University of North Carolina at Chapel Hill, Chapel Hill, NC 27599, USA; Lineberger Comprehensive Cancer Center, University of North Carolina at Chapel Hill, Chapel Hill, NC 27599, USA
| | - Berislav V Zlokovic
- Department of Physiology and Neuroscience, Keck School of Medicine, University of Southern California, Los Angeles, CA 90033, USA; Zilkha Neurogenetic Institute, Keck School of Medicine, University of Southern California, Los Angeles, CA 90033, USA.
| | - Zhen Zhao
- Department of Physiology and Neuroscience, Keck School of Medicine, University of Southern California, Los Angeles, CA 90033, USA; Zilkha Neurogenetic Institute, Keck School of Medicine, University of Southern California, Los Angeles, CA 90033, USA.
| | - Jae U Jung
- Department of Molecular Microbiology and Immunology, Keck School of Medicine, University of Southern California, Los Angeles, CA 90033, USA; Zilkha Neurogenetic Institute, Keck School of Medicine, University of Southern California, Los Angeles, CA 90033, USA.
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8
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D'Amico RS, Praver M, Zanazzi GJ, Englander ZK, Sims JS, Samanamud JL, Ogden AT, McCormick PC, Feldstein NA, McKhann GM, Sisti MB, Canoll P, Bruce JN. Subependymomas Are Low-Grade Heterogeneous Glial Neoplasms Defined by Subventricular Zone Lineage Markers. World Neurosurg 2017; 107:451-463. [PMID: 28804038 DOI: 10.1016/j.wneu.2017.08.009] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2017] [Revised: 07/28/2017] [Accepted: 08/01/2017] [Indexed: 10/19/2022]
Abstract
OBJECTIVE Subependymomas are infrequent, low-grade gliomas associated with the ventricular system and the spinal cord. Little is known about the origin and natural history of these slow-growing lesions. METHODS We identified all patients with pathologically proven subependymomas presenting to our institution between 1998 and 2016. We retrospectively reviewed clinical, radiographic, histologic, and surgical outcomes data in all patients who underwent surgical resection. Immunohistochemical analyses for cell lineage markers were performed. RESULTS A total of 31 patients with pathologically proven subependymomas were identified. Of these, 7 asymptomatic lesions were discovered at autopsy and 24 symptomatic cases were treated surgically. There were 15 (48%) lateral ventricle tumors, 11 (35%) fourth ventricular tumors, and 5 (17%) spinal tumors. Symptomatic intracranial lesions most commonly presented with headaches and balance and gait abnormalities. Subependymomas had no distinguishing radiographic features that provided definitive preoperative diagnosis. At last follow-up, no patient treated surgically experienced recurrence. Immunohistochemical analyses demonstrated a diffusely GFAP-positive glial neoplasm with mixed populations of cells that were variably positive for Olig2, NHERF1, Sox2, and CD44. The Ki67 proliferation index was generally low (<1% in many of the tumors). CONCLUSIONS Subependymomas demonstrate mixed populations of cells expressing glial lineage markers as well as putative stem cell markers, suggesting these tumors may arise from multipotent glial progenitors that reside in the subventricular zone. Definitive diagnosis requires surgical sampling. Although the clinical course of subependymomas appears benign, the inability to radiographically diagnose these lesions, and the possibility of an alternative malignant lesion support a low threshold for early and safe maximal resection.
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Affiliation(s)
- Randy S D'Amico
- Department of Neurological Surgery, Columbia University Medical Center, New York, New York, USA.
| | - Moshe Praver
- Department of Neurological Surgery, Columbia University Medical Center, New York, New York, USA
| | - George J Zanazzi
- Department of Pathology and Cell Biology, Columbia University Medical Center, New York, New York, USA
| | - Zachary K Englander
- Department of Neurological Surgery, Columbia University Medical Center, New York, New York, USA
| | - Jennifer S Sims
- Department of Neurological Surgery, Columbia University Medical Center, New York, New York, USA
| | - Jorge L Samanamud
- Department of Neurological Surgery, Columbia University Medical Center, New York, New York, USA
| | - Alfred T Ogden
- Department of Neurological Surgery, Columbia University Medical Center, New York, New York, USA
| | - Paul C McCormick
- Department of Neurological Surgery, Columbia University Medical Center, New York, New York, USA
| | - Neil A Feldstein
- Department of Neurological Surgery, Columbia University Medical Center, New York, New York, USA
| | - Guy M McKhann
- Department of Neurological Surgery, Columbia University Medical Center, New York, New York, USA
| | - Michael B Sisti
- Department of Neurological Surgery, Columbia University Medical Center, New York, New York, USA
| | - Peter Canoll
- Department of Pathology and Cell Biology, Columbia University Medical Center, New York, New York, USA
| | - Jeffrey N Bruce
- Department of Neurological Surgery, Columbia University Medical Center, New York, New York, USA
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9
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Martín-Ibáñez R, Guardia I, Pardo M, Herranz C, Zietlow R, Vinh NN, Rosser A, Canals JM. Insights in spatio-temporal characterization of human fetal neural stem cells. Exp Neurol 2017; 291:20-35. [PMID: 28131724 DOI: 10.1016/j.expneurol.2017.01.011] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2016] [Revised: 01/12/2017] [Accepted: 01/24/2017] [Indexed: 11/25/2022]
Abstract
Primary human fetal cells have been used in clinical trials of cell replacement therapy for the treatment of neurodegenerative disorders such as Huntington's disease (HD). However, human fetal primary cells are scarce and difficult to work with and so a renewable source of cells is sought. Human fetal neural stem cells (hfNSCs) can be generated from human fetal tissue, but little is known about the differences between hfNSCs obtained from different developmental stages and brain areas. In the present work we characterized hfNSCs, grown as neurospheres, obtained from three developmental stages: 4-5, 6-7 and 8-9weeks post conception (wpc) and four brain areas: forebrain, cortex, whole ganglionic eminence (WGE) and cerebellum. We observed that, as fetal brain development proceeds, the number of neural precursors is diminished and post-mitotic cells are increased. In turn, primary cells obtained from older embryos are more sensitive to the dissociation process, their viability is diminished and they present lower proliferation ratios compared to younger embryos. However, independently of the developmental stage of derivation proliferation ratios were very low in all cases. Improvements in the expansion rates were achieved by mechanical, instead of enzymatic, dissociation of neurospheres but not by changes in the seeding densities. Regardless of the developmental stage, neurosphere cultures presented large variability in the viability and proliferation rates during the initial 3-4 passages, but stabilized achieving significant expansion rates at passage 5 to 6. This was true also for all brain regions except cerebellar derived cultures that did not expand. Interestingly, the brain region of hfNSC derivation influences the expansion potential, being forebrain, cortex and WGE derived cells the most expandable compared to cerebellar. Short term expansion partially compromised the regional identity of cortical but not WGE cultures. Nevertheless, both expanded cultures were multipotent and kept the ability to differentiate to region specific mature neuronal phenotypes.
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Affiliation(s)
- Raquel Martín-Ibáñez
- Laboratory of Stem Cells and Regenerative Medicine, Department of Biomedical Science, Faculty of Medicine and Health Sciences, University of Barcelona, Casanova 143, 08036 Barcelona, Spain; August Pi i Sunyer Biomedical Research Institute (IDIBAPS), Rosselló 149-153, 08036 Barcelona, Spain; Networked Biomedical Research Centre for NeuroDegenerative Disorders (CIBERNED), Spain; Research and Development Unit, Cell Therapy Program, Faculty of Medicine and Health Sciences, University of Barcelona, Casanova 143, 08036 Barcelona, Spain.
| | - Inés Guardia
- Laboratory of Stem Cells and Regenerative Medicine, Department of Biomedical Science, Faculty of Medicine and Health Sciences, University of Barcelona, Casanova 143, 08036 Barcelona, Spain; August Pi i Sunyer Biomedical Research Institute (IDIBAPS), Rosselló 149-153, 08036 Barcelona, Spain; Networked Biomedical Research Centre for NeuroDegenerative Disorders (CIBERNED), Spain.
| | - Mónica Pardo
- Laboratory of Stem Cells and Regenerative Medicine, Department of Biomedical Science, Faculty of Medicine and Health Sciences, University of Barcelona, Casanova 143, 08036 Barcelona, Spain; August Pi i Sunyer Biomedical Research Institute (IDIBAPS), Rosselló 149-153, 08036 Barcelona, Spain; Networked Biomedical Research Centre for NeuroDegenerative Disorders (CIBERNED), Spain.
| | - Cristina Herranz
- Laboratory of Stem Cells and Regenerative Medicine, Department of Biomedical Science, Faculty of Medicine and Health Sciences, University of Barcelona, Casanova 143, 08036 Barcelona, Spain; August Pi i Sunyer Biomedical Research Institute (IDIBAPS), Rosselló 149-153, 08036 Barcelona, Spain; Networked Biomedical Research Centre for NeuroDegenerative Disorders (CIBERNED), Spain; Research and Development Unit, Cell Therapy Program, Faculty of Medicine and Health Sciences, University of Barcelona, Casanova 143, 08036 Barcelona, Spain.
| | - Rike Zietlow
- Cardiff University Brain Repair Group, Schools of Biosciences and Medicine, University of Cardiff, UK.
| | - Ngoc-Nga Vinh
- Cardiff University Brain Repair Group, Schools of Biosciences and Medicine, University of Cardiff, UK.
| | - Anne Rosser
- Cardiff University Brain Repair Group, Schools of Biosciences and Medicine, University of Cardiff, UK.
| | - Josep M Canals
- Laboratory of Stem Cells and Regenerative Medicine, Department of Biomedical Science, Faculty of Medicine and Health Sciences, University of Barcelona, Casanova 143, 08036 Barcelona, Spain; August Pi i Sunyer Biomedical Research Institute (IDIBAPS), Rosselló 149-153, 08036 Barcelona, Spain; Networked Biomedical Research Centre for NeuroDegenerative Disorders (CIBERNED), Spain; Research and Development Unit, Cell Therapy Program, Faculty of Medicine and Health Sciences, University of Barcelona, Casanova 143, 08036 Barcelona, Spain.
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10
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Dietz KC, Polanco JJ, Pol SU, Sim FJ. Targeting human oligodendrocyte progenitors for myelin repair. Exp Neurol 2016; 283:489-500. [PMID: 27001544 PMCID: PMC5666574 DOI: 10.1016/j.expneurol.2016.03.017] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/31/2015] [Revised: 03/15/2016] [Accepted: 03/16/2016] [Indexed: 12/31/2022]
Abstract
Oligodendrocyte development has been studied for several decades, and has served as a model system for both neurodevelopmental and stem/progenitor cell biology. Until recently, the vast majority of studies have been conducted in lower species, especially those focused on rodent development and remyelination. In humans, the process of myelination requires the generation of vastly more myelinating glia, occurring over a period of years rather than weeks. Furthermore, as evidenced by the presence of chronic demyelination in a variety of human neurologic diseases, it appears likely that the mechanisms that regulate development and become dysfunctional in disease may be, in key ways, divergent across species. Improvements in isolation techniques, applied to primary human neural and oligodendrocyte progenitors from both fetal and adult brain, as well as advancements in the derivation of defined progenitors from human pluripotent stem cells, have begun to reveal the extent of both species-conserved signaling pathways and potential key differences at cellular and molecular levels. In this article, we will review the commonalities and differences in myelin development between rodents and man, describing the approaches used to study human oligodendrocyte differentiation and myelination, as well as heterogeneity within targetable progenitor pools, and discuss the advances made in determining which conserved pathways may be both modeled in rodents and translate into viable therapeutic strategies to promote myelin repair.
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Affiliation(s)
- Karen C Dietz
- Program in Neuroscience, Department of Pharmacology and Toxicology, School of Medicine and Biomedical Sciences, State University of New York at Buffalo, 3435 Main Street, 119 Farber Hall, Buffalo, NY 14214, United States.
| | - Jessie J Polanco
- Program in Neuroscience, Department of Pharmacology and Toxicology, School of Medicine and Biomedical Sciences, State University of New York at Buffalo, 3435 Main Street, 119 Farber Hall, Buffalo, NY 14214, United States.
| | - Suyog U Pol
- Program in Neuroscience, Department of Pharmacology and Toxicology, School of Medicine and Biomedical Sciences, State University of New York at Buffalo, 3435 Main Street, 119 Farber Hall, Buffalo, NY 14214, United States.
| | - Fraser J Sim
- Program in Neuroscience, Department of Pharmacology and Toxicology, School of Medicine and Biomedical Sciences, State University of New York at Buffalo, 3435 Main Street, 119 Farber Hall, Buffalo, NY 14214, United States.
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11
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3K3A-activated protein C stimulates postischemic neuronal repair by human neural stem cells in mice. Nat Med 2016; 22:1050-5. [PMID: 27548576 DOI: 10.1038/nm.4154] [Citation(s) in RCA: 74] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2015] [Accepted: 06/24/2016] [Indexed: 12/13/2022]
Abstract
Activated protein C (APC) is a blood protease with anticoagulant activity and cell-signaling activities mediated by the activation of protease-activated receptor 1 (F2R, also known as PAR1) and F2RL1 (also known as PAR3) via noncanonical cleavage. Recombinant variants of APC, such as the 3K3A-APC (Lys191-193Ala) mutant in which three Lys residues (KKK191-193) were replaced with alanine, and/or its other mutants with reduced (>90%) anticoagulant activity, engineered to reduce APC-associated bleeding risk while retaining normal cell-signaling activity, have shown benefits in preclinical models of ischemic stroke, brain trauma, multiple sclerosis, amyotrophic lateral sclerosis, sepsis, ischemic and reperfusion injury of heart, kidney and liver, pulmonary, kidney and gastrointestinal inflammation, diabetes and lethal body radiation. On the basis of proof-of-concept studies and an excellent safety profile in humans, 3K3A-APC has advanced to clinical trials as a neuroprotectant in ischemic stroke. Recently, 3K3A-APC has been shown to stimulate neuronal production by human neural stem and progenitor cells (NSCs) in vitro via a PAR1-PAR3-sphingosine-1-phosphate-receptor 1-Akt pathway, which suggests the potential for APC-based treatment as a strategy for structural repair in the human central nervous (CNS) system. Here we report that late postischemic treatment of mice with 3K3A-APC stimulates neuronal production by transplanted human NSCs, promotes circuit restoration and improves functional recovery. Thus, 3K3A-APC-potentiated neuronal recruitment from engrafted NSCs might offer a new approach to the treatment of stroke and related neurological disorders.
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12
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Liang Q, Luo Z, Zeng J, Chen W, Foo SS, Lee SA, Ge J, Wang S, Goldman SA, Zlokovic BV, Zhao Z, Jung JU. Zika Virus NS4A and NS4B Proteins Deregulate Akt-mTOR Signaling in Human Fetal Neural Stem Cells to Inhibit Neurogenesis and Induce Autophagy. Cell Stem Cell 2016; 19:663-671. [PMID: 27524440 DOI: 10.1016/j.stem.2016.07.019] [Citation(s) in RCA: 361] [Impact Index Per Article: 45.1] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2016] [Revised: 06/20/2016] [Accepted: 07/21/2016] [Indexed: 12/19/2022]
Abstract
The current widespread outbreak of Zika virus (ZIKV) infection has been linked to severe clinical birth defects, particularly microcephaly, warranting urgent study of the molecular mechanisms underlying ZIKV pathogenesis. Akt-mTOR signaling is one of the key cellular pathways essential for brain development and autophagy regulation. Here, we show that ZIKV infection of human fetal neural stem cells (fNSCs) causes inhibition of the Akt-mTOR pathway, leading to defective neurogenesis and aberrant activation of autophagy. By screening the three structural proteins and seven nonstructural proteins present in ZIKV, we found that two, NS4A and NS4B, cooperatively suppress the Akt-mTOR pathway and lead to cellular dysregulation. Corresponding proteins from the closely related dengue virus do not have the same effect on neurogenesis. Thus, our study highlights ZIKV NS4A and NS4B as candidate determinants of viral pathogenesis and identifies a mechanism of action for their effects, suggesting potential targets for anti-ZIKV therapeutic intervention.
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Affiliation(s)
- Qiming Liang
- Department of Molecular Microbiology and Immunology, Keck School of Medicine, University of Southern California, Los Angeles, CA 90033, USA; Shanghai Institute of Immunology, Department of Immunology and Microbiology, Shanghai Jiao Tong University School of Medicine, Shanghai, 200025, China.
| | - Zhifei Luo
- Department of Physiology and Biophysics, Keck School of Medicine, University of Southern California, Los Angeles, CA 90033, USA; Zilkha Neurogenetic Institute, Keck School of Medicine, University of Southern California, Los Angeles, CA 90033, USA
| | - Jianxiong Zeng
- Department of Molecular Microbiology and Immunology, Keck School of Medicine, University of Southern California, Los Angeles, CA 90033, USA
| | - Weiqiang Chen
- Department of Molecular Microbiology and Immunology, Keck School of Medicine, University of Southern California, Los Angeles, CA 90033, USA
| | - Suan-Sin Foo
- Department of Molecular Microbiology and Immunology, Keck School of Medicine, University of Southern California, Los Angeles, CA 90033, USA
| | - Shin-Ae Lee
- Department of Molecular Microbiology and Immunology, Keck School of Medicine, University of Southern California, Los Angeles, CA 90033, USA
| | - Jianning Ge
- Department of Molecular Microbiology and Immunology, Keck School of Medicine, University of Southern California, Los Angeles, CA 90033, USA
| | - Su Wang
- Center for Translational Neuromedicine, University of Rochester, Rochester, NY 14642, USA; Department of Neurology, University of Rochester, Rochester, NY 14642, USA; Faculty of Health and Medical Sciences, University of Copenhagen, 1165 Copenhagen, Denmark
| | - Steven A Goldman
- Center for Translational Neuromedicine, University of Rochester, Rochester, NY 14642, USA; Department of Neurology, University of Rochester, Rochester, NY 14642, USA; Faculty of Health and Medical Sciences, University of Copenhagen, 1165 Copenhagen, Denmark
| | - Berislav V Zlokovic
- Department of Physiology and Biophysics, Keck School of Medicine, University of Southern California, Los Angeles, CA 90033, USA; Zilkha Neurogenetic Institute, Keck School of Medicine, University of Southern California, Los Angeles, CA 90033, USA
| | - Zhen Zhao
- Department of Physiology and Biophysics, Keck School of Medicine, University of Southern California, Los Angeles, CA 90033, USA; Zilkha Neurogenetic Institute, Keck School of Medicine, University of Southern California, Los Angeles, CA 90033, USA.
| | - Jae U Jung
- Department of Molecular Microbiology and Immunology, Keck School of Medicine, University of Southern California, Los Angeles, CA 90033, USA.
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13
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Aleksandrova MA, Poltavtseva RA, Marei MV, Sukhikh GT. Analysis of Neural Stem Cells from Human Cortical Brain Structures In Vitro. Bull Exp Biol Med 2016; 161:197-208. [PMID: 27279101 DOI: 10.1007/s10517-016-3375-5] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2015] [Indexed: 12/12/2022]
Abstract
Comparative immunohistochemical analysis of the neocortex from human fetuses showed that neural stem and progenitor cells are present in the brain throughout the gestation period, at least from week 8 through 26. At the same time, neural stem cells from the first and second trimester fetuses differed by the distribution, morphology, growth, and quantity. Immunocytochemical analysis of neural stem cells derived from fetuses at different gestation terms and cultured under different conditions showed their differentiation capacity. Detailed analysis of neural stem cell populations derived from fetuses on gestation weeks 8-9, 18-20, and 26 expressing Lex/SSEA1 was performed.
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Affiliation(s)
- M A Aleksandrova
- N. K. Kol'tsov Institute of Developmental Biology, Russian Academy of Sciences, Moscow, Russia.,V. I. Kulakov Research Center of Obstetrics, Gynecology, and Perinatology, Ministry of Health of the Russian Federation, Moscow, Russia
| | - R A Poltavtseva
- V. I. Kulakov Research Center of Obstetrics, Gynecology, and Perinatology, Ministry of Health of the Russian Federation, Moscow, Russia.
| | - M V Marei
- V. I. Kulakov Research Center of Obstetrics, Gynecology, and Perinatology, Ministry of Health of the Russian Federation, Moscow, Russia
| | - G T Sukhikh
- V. I. Kulakov Research Center of Obstetrics, Gynecology, and Perinatology, Ministry of Health of the Russian Federation, Moscow, Russia
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14
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Human glia can both induce and rescue aspects of disease phenotype in Huntington disease. Nat Commun 2016; 7:11758. [PMID: 27273432 PMCID: PMC4899632 DOI: 10.1038/ncomms11758] [Citation(s) in RCA: 128] [Impact Index Per Article: 16.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2016] [Accepted: 04/27/2016] [Indexed: 01/19/2023] Open
Abstract
The causal contribution of glial pathology to Huntington disease (HD) has not been heavily explored. To define the contribution of glia to HD, we established human HD glial chimeras by neonatally engrafting immunodeficient mice with mutant huntingtin (mHTT)-expressing human glial progenitor cells (hGPCs), derived from either human embryonic stem cells or mHTT-transduced fetal hGPCs. Here we show that mHTT glia can impart disease phenotype to normal mice, since mice engrafted intrastriatally with mHTT hGPCs exhibit worse motor performance than controls, and striatal neurons in mHTT glial chimeras are hyperexcitable. Conversely, normal glia can ameliorate disease phenotype in transgenic HD mice, as striatal transplantation of normal glia rescues aspects of electrophysiological and behavioural phenotype, restores interstitial potassium homeostasis, slows disease progression and extends survival in R6/2 HD mice. These observations suggest a causal role for glia in HD, and further suggest a cell-based strategy for disease amelioration in this disorder. The contribution of glia to Huntington's disease is unclear. The authors show that human glial progenitor cells (GPCs) expressing mutant huntingtin impair motor performance when engrafted into wild type mice, and wild type human GPCs ameliorate disease phenotypes when engrafted into an HD mouse model.
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15
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Abstract
UNLABELLED Microglia are involved in synaptic pruning both in development and in the mature CNS. In this study, we investigated whether microglia might further contribute to circuit plasticity by modulating neuronal recruitment from the neurogenic subventricular zone (SVZ) of the adult mouse striatum. We found that microglia residing in the SVZ and adjacent rostral migratory stream (RMS) comprise a morphologically and antigenically distinct phenotype of immune effectors. Whereas exhibiting characteristics of alternatively activated microglia, the SVZ/RMS microglia were clearly distinguished by their low expression of purinoceptors and lack of ATP-elicitable chemotaxis. Furthermore, the in vivo depletion of these microglia hampered the survival and migration of newly generated neuroblasts through the RMS to the olfactory bulb. SVZ and RMS microglia thus appear to comprise a functionally distinct class that is selectively adapted to the support and direction of neuronal integration into the olfactory circuitry. Therefore, this unique microglial subpopulation may serve as a novel target with which to modulate cellular addition from endogenous neural stem and progenitor cells of the adult brain. SIGNIFICANCE STATEMENT Microglial cells are a specialized population of macrophages in the CNS, playing key roles as immune mediators. As integral components in the CNS, the microglia stand out for using the same mechanisms, phagocytosis and cytochemokine release, to promote homeostasis, synaptic pruning, and neural circuitry sculpture. Here, we addressed microglial functions in the subventricular zone (SVZ), the major postnatal neurogenic niche. Our results depict microglia as a conspicuous component of SVZ and its anterior extension, the rostral migratory stream, a pathway used by neuroblasts during their transit toward olfactory bulb layers. In addition to other unique populations residing in the SVZ niche, microglia display distinct morphofunctional properties that boost neuronal progenitor survival and migration in the mammalian brain.
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16
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Sandberg CJ, Vik-Mo EO, Behnan J, Helseth E, Langmoen IA. Transcriptional profiling of adult neural stem-like cells from the human brain. PLoS One 2014; 9:e114739. [PMID: 25514637 PMCID: PMC4267785 DOI: 10.1371/journal.pone.0114739] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2014] [Accepted: 11/13/2014] [Indexed: 12/11/2022] Open
Abstract
There is a great potential for the development of new cell replacement strategies based on adult human neural stem-like cells. However, little is known about the hierarchy of cells and the unique molecular properties of stem- and progenitor cells of the nervous system. Stem cells from the adult human brain can be propagated and expanded in vitro as free floating neurospheres that are capable of self-renewal and differentiation into all three cell types of the central nervous system. Here we report the first global gene expression study of adult human neural stem-like cells originating from five human subventricular zone biopsies (mean age 42, range 33–60). Compared to adult human brain tissue, we identified 1,189 genes that were significantly up- and down-regulated in adult human neural stem-like cells (1% false discovery rate). We found that adult human neural stem-like cells express stem cell markers and have reduced levels of markers that are typical of the mature cells in the nervous system. We report that the genes being highly expressed in adult human neural stem-like cells are associated with developmental processes and the extracellular region of the cell. The calcium signaling pathway and neuroactive ligand-receptor interactions are enriched among the most differentially regulated genes between adult human neural stem-like cells and adult human brain tissue. We confirmed the expression of 10 of the most up-regulated genes in adult human neural stem-like cells in an additional sample set that included adult human neural stem-like cells (n = 6), foetal human neural stem cells (n = 1) and human brain tissues (n = 12). The NGFR, SLITRK6 and KCNS3 receptors were further investigated by immunofluorescence and shown to be heterogeneously expressed in spheres. These receptors could potentially serve as new markers for the identification and characterisation of neural stem- and progenitor cells or as targets for manipulation of cellular fate.
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Affiliation(s)
- Cecilie Jonsgar Sandberg
- Vilhelm Magnus Lab, Institute for Surgical Research and Department of Neurosurgery, Oslo University Hospital, Oslo, Norway
- * E-mail:
| | - Einar O. Vik-Mo
- Vilhelm Magnus Lab, Institute for Surgical Research and Department of Neurosurgery, Oslo University Hospital, Oslo, Norway
| | - Jinan Behnan
- Vilhelm Magnus Lab, Institute for Surgical Research and Department of Neurosurgery, Oslo University Hospital, Oslo, Norway
| | - Eirik Helseth
- Vilhelm Magnus Lab, Institute for Surgical Research and Department of Neurosurgery, Oslo University Hospital, Oslo, Norway
| | - Iver A. Langmoen
- Vilhelm Magnus Lab, Institute for Surgical Research and Department of Neurosurgery, Oslo University Hospital, Oslo, Norway
- Cancer Stem Cell Innovation Center (CAST), Oslo University Hospital and University of Oslo, Oslo, Norway
- Norwegian Stem Cell Center, Oslo University Hospital and University of Oslo, Oslo, Norway
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17
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Oliver-De La Cruz J, Carrión-Navarro J, García-Romero N, Gutiérrez-Martín A, Lázaro-Ibáñez E, Escobedo-Lucea C, Perona R, Belda-Iniesta C, Ayuso-Sacido A. SOX2+ cell population from normal human brain white matter is able to generate mature oligodendrocytes. PLoS One 2014; 9:e99253. [PMID: 24901457 PMCID: PMC4047120 DOI: 10.1371/journal.pone.0099253] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2013] [Accepted: 05/13/2014] [Indexed: 01/01/2023] Open
Abstract
OBJECTIVES A number of neurodegenerative diseases progress with a loss of myelin, which makes them candidate diseases for the development of cell-replacement therapies based on mobilisation or isolation of the endogenous neural/glial progenitor cells, in vitro expansion, and further implantation. Cells expressing A2B5 or PDGFRA/CNP have been isolated within the pool of glial progenitor cells in the subcortical white matter of the normal adult human brain, all of which demonstrate glial progenitor features. However, the heterogeneity and differentiation potential of this pool of cells is not yet well established. METHODS We used diffusion tensor images, histopathology, and immunostaining analysis to demonstrate normal cytoarchitecture and the absence of abnormalities in human temporal lobe samples from patients with mesial temporal sclerosis. These samples were used to isolate and enrich glial progenitor cells in vitro, and later to detect such cells in vivo. RESULTS We have identified a subpopulation of SOX2+ cells, most of them co-localising with OLIG2, in the white matter of the normal adult human brain in vivo. These cells can be isolated and enriched in vitro, where they proliferate and generate immature (O4+) and mature (MBP+) oligodendrocytes and, to a lesser extent, astrocytes (GFAP+). CONCLUSION Our results demonstrate the existence of a new glial progenitor cell subpopulation that expresses SOX2 in the white matter of the normal adult human brain. These cells might be of use for tissue regeneration procedures.
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Affiliation(s)
- Jorge Oliver-De La Cruz
- Centro Integral Oncológico Clara Campal (CIOCC) and Instituto de Medicina Molecular Aplicada (IMMA), Hospital de Madrid Foundation, Madrid, Spain
| | - Josefa Carrión-Navarro
- Centro Integral Oncológico Clara Campal (CIOCC) and Instituto de Medicina Molecular Aplicada (IMMA), Hospital de Madrid Foundation, Madrid, Spain
| | - Noemí García-Romero
- Nanomedicine Laboratory, Instituto Madrileño de Estudios Avanzados IMDEA nanoscience, Madrid, Spain
| | | | - Elisa Lázaro-Ibáñez
- Centro Integral Oncológico Clara Campal (CIOCC) and Instituto de Medicina Molecular Aplicada (IMMA), Hospital de Madrid Foundation, Madrid, Spain
- Division of Biopharmaceuticals and Pharmacokinetics, University of Helsinki, Helsinki, Finland
| | - Carmen Escobedo-Lucea
- Division of Biopharmaceuticals and Pharmacokinetics, University of Helsinki, Helsinki, Finland
| | - Rosario Perona
- Instituto de Investigaciones Biomédicas CSIC/UAM, Madrid, Spain
| | - Cristobal Belda-Iniesta
- Centro Integral Oncológico Clara Campal (CIOCC) and Instituto de Medicina Molecular Aplicada (IMMA), Hospital de Madrid Foundation, Madrid, Spain
- Nanomedicine Laboratory, Instituto Madrileño de Estudios Avanzados IMDEA nanoscience, Madrid, Spain
| | - Angel Ayuso-Sacido
- Centro Integral Oncológico Clara Campal (CIOCC) and Instituto de Medicina Molecular Aplicada (IMMA), Hospital de Madrid Foundation, Madrid, Spain
- Division of Biopharmaceuticals and Pharmacokinetics, University of Helsinki, Helsinki, Finland
- Nanomedicine Laboratory, Instituto Madrileño de Estudios Avanzados IMDEA nanoscience, Madrid, Spain
- * E-mail:
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18
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Linkov F, Burke LE, Komaroff M, Edwards RP, Lokshin A, Styn MA, Tseytlin E, Freese KE, Bovbjerg DH. An exploratory investigation of links between changes in adipokines and quality of life in individuals undergoing weight loss interventions: possible implications for cancer research. Gynecol Oncol 2014; 133:67-72. [PMID: 24462731 PMCID: PMC4340612 DOI: 10.1016/j.ygyno.2014.01.019] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2013] [Revised: 01/13/2014] [Accepted: 01/13/2014] [Indexed: 12/31/2022]
Abstract
OBJECTIVE Obesity has been linked to a wide spectrum of malignancies, with the strongest association demonstrated for endometrial cancer. Although the mechanisms are not yet entirely clear, a number of risk biomarkers have been proposed, including altered adipokines. Systemic levels of these adipose derived molecules have also been linked in prior research to self-reported quality of life (QOL). The study objective was to examine the hypothesis that adipokine changes during intentional weight loss may be associated with changes in QOL. METHODS Fifty-two female participants were selected from two behavioral weight loss trials (SMART and PREFER) on the basis of achieving successful weight loss at 6month assessment, availability of blood samples and completion of standard SF-36 QOL questionnaires. Levels of adiponectin, leptin, and resistin were measured using xMAP immunoassays. Changes in QOL were examined using linear regression models in relation to pre- and post-intervention changes in biomarker levels and BMI. RESULTS Significant changes between pre- and post-intervention were observed for leptin. Controlling for baseline BMI, leptin was the only biomarker that predicted change in QOL (Physical Component Scale, PCS). Linear regression models demonstrated that leptin continued to be a significant predictor of change in PCS when other possible predictor variables were included in the model. CONCLUSIONS This study is among the first to demonstrate that changes in PCS may be regulated by levels of both metabolic variables and adipokines. An improved understanding of biological mechanisms associated with weight loss and the role of QOL may help guide preventive strategies for obesity-associated cancers.
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Affiliation(s)
- Faina Linkov
- Magee Women's Research Institute, Department of Obstetrics, Gynecology and Reproductive Sciences, University of Pittsburgh, Pittsburgh, PA, USA
| | - Lora E Burke
- Department of Health & Community Systems, University of Pittsburgh School of Nursing, Pittsburgh, PA, USA; Department of Epidemiology, University of Pittsburgh Graduate School of Public Health, Pittsburgh, PA, USA
| | - Marina Komaroff
- Department of Epidemiology, School of Public Health, SUNY Downstate Medical Center, Brooklyn, NY, USA
| | - Robert P Edwards
- Magee Women's Research Institute, Department of Obstetrics, Gynecology and Reproductive Sciences, University of Pittsburgh, Pittsburgh, PA, USA
| | - Anna Lokshin
- Department of Medicine, and the Luminex Core Laboratory, University of Pittsburgh Cancer Institute, University of Pittsburgh, Pittsburgh, PA, USA
| | - Mindi A Styn
- Department of Health & Community Systems, University of Pittsburgh School of Nursing, Pittsburgh, PA, USA; Department of Epidemiology, University of Pittsburgh Graduate School of Public Health, Pittsburgh, PA, USA
| | - Eugene Tseytlin
- Department of Biomedical Informatics, University of Pittsburgh, PA, USA
| | - Kyle E Freese
- Magee Women's Research Institute, Department of Obstetrics, Gynecology and Reproductive Sciences, University of Pittsburgh, Pittsburgh, PA, USA
| | - Dana H Bovbjerg
- Departments of Psychiatry, Psychology, and Behavioral & Community Health Sciences, Clinical and Translational Science Institute, Biobehavioral Medicine in Oncology Program, University of Pittsburgh Cancer Institute, University of Pittsburgh, Pittsburgh, PA, USA
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19
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Batista LFZ. Telomere biology in stem cells and reprogramming. PROGRESS IN MOLECULAR BIOLOGY AND TRANSLATIONAL SCIENCE 2014; 125:67-88. [PMID: 24993698 DOI: 10.1016/b978-0-12-397898-1.00003-7] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
Telomerase expression in humans is restricted to different populations of stem and progenitor cells, being silenced in most somatic tissues. Efficient telomere homeostasis is essential for embryonic and adult stem cell function and therefore essential for tissue homeostasis throughout organismal life. Accordingly, the mutations in telomerase culminate in reduced stem cell function both in vivo and in vitro and have been associated with tissue dysfunction in human patients. Despite the importance of telomerase for stem cell biology, the mechanisms behind telomerase regulation during development are still poorly understood, mostly due to difficulties in acquiring and maintaining pluripotent stem cell populations in culture. In this chapter, we will analyze recent developments in this field, including the importance of efficient telomere homeostasis in different stem cell types and the role of telomerase in different techniques used for cellular reprogramming.
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Affiliation(s)
- Luis F Z Batista
- Department of Medicine, Washington University School of Medicine, St. Louis, Missouri, USA; Department of Developmental Biology, Washington University School of Medicine, St. Louis, Missouri, USA
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20
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Wang S, Bates J, Li X, Schanz S, Chandler-Militello D, Levine C, Maherali N, Studer L, Hochedlinger K, Windrem M, Goldman SA. Human iPSC-derived oligodendrocyte progenitor cells can myelinate and rescue a mouse model of congenital hypomyelination. Cell Stem Cell 2013; 12:252-64. [PMID: 23395447 DOI: 10.1016/j.stem.2012.12.002] [Citation(s) in RCA: 430] [Impact Index Per Article: 39.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2012] [Revised: 10/04/2012] [Accepted: 12/05/2012] [Indexed: 12/28/2022]
Abstract
Neonatal engraftment by oligodendrocyte progenitor cells (OPCs) permits the myelination of the congenitally dysmyelinated brain. To establish a potential autologous source of these cells, we developed a strategy by which to differentiate human induced pluripotent stem cells (hiPSCs) into OPCs. From three hiPSC lines, as well as from human embryonic stem cells (hESCs), we generated highly enriched OLIG2(+)/PDGFRα(+)/NKX2.2(+)/SOX10(+) human OPCs, which could be further purified using fluorescence-activated cell sorting. hiPSC OPCs efficiently differentiated into both myelinogenic oligodendrocytes and astrocytes, in vitro and in vivo. Neonatally engrafted hiPSC OPCs robustly myelinated the brains of myelin-deficient shiverer mice and substantially increased their survival. The speed and efficiency of myelination by hiPSC OPCs was higher than that previously observed using fetal-tissue-derived OPCs, and no tumors from these grafts were noted as long as 9 months after transplant. These results suggest the potential utility of hiPSC-derived OPCs in treating disorders of myelin loss.
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Affiliation(s)
- Su Wang
- Center for Translational Neuromedicine and Department of Neurology, University of Rochester Medical Center, Rochester, NY 14642, USA
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21
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Auvergne RM, Sim FJ, Wang S, Chandler-Militello D, Burch J, Al Fanek Y, Davis D, Benraiss A, Walter K, Achanta P, Johnson M, Quinones-Hinojosa A, Natesan S, Ford HL, Goldman SA. Transcriptional differences between normal and glioma-derived glial progenitor cells identify a core set of dysregulated genes. Cell Rep 2013; 3:2127-41. [PMID: 23727239 PMCID: PMC5293199 DOI: 10.1016/j.celrep.2013.04.035] [Citation(s) in RCA: 61] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2012] [Revised: 03/17/2013] [Accepted: 04/29/2013] [Indexed: 01/15/2023] Open
Abstract
Glial progenitor cells (GPCs) are a potential source of malignant gliomas. We used A2B5-based sorting to extract tumorigenic GPCs from human gliomas spanning World Health Organization grades II-IV. Messenger RNA profiling identified a cohort of genes that distinguished A2B5+ glioma tumor progenitor cells (TPCs) from A2B5+ GPCs isolated from normal white matter. A core set of genes and pathways was substantially dysregulated in A2B5+ TPCs, which included the transcription factor SIX1 and its principal cofactors, EYA1 and DACH2. Small hairpin RNAi silencing of SIX1 inhibited the expansion of glioma TPCs in vitro and in vivo, suggesting a critical and unrecognized role of the SIX1-EYA1-DACH2 system in glioma genesis or progression. By comparing the expression patterns of glioma TPCs with those of normal GPCs, we have identified a discrete set of pathways by which glial tumorigenesis may be better understood and more specifically targeted.
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Affiliation(s)
- Romane M Auvergne
- Center for Translational Neuromedicine, University of Rochester Medical Center, Rochester, NY 14642, USA.
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22
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An activated protein C analog stimulates neuronal production by human neural progenitor cells via a PAR1-PAR3-S1PR1-Akt pathway. J Neurosci 2013; 33:6181-90. [PMID: 23554499 DOI: 10.1523/jneurosci.4491-12.2013] [Citation(s) in RCA: 51] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023] Open
Abstract
Activated protein C (APC) is a protease with anticoagulant and cell-signaling activities. In the CNS, APC and its analogs with reduced anticoagulant activity but preserved cell signaling activities, such as 3K3A-APC, exert neuroprotective, vasculoprotective, and anti-inflammatory effects. Murine APC promotes subependymal neurogenesis in rodents in vivo after ischemic and traumatic brain injury. Whether human APC can influence neuronal production from resident progenitor cells in humans is unknown. Here we show that 3K3A-APC, but not S360A-APC (an enzymatically inactive analog of APC), stimulates neuronal mitogenesis and differentiation from fetal human neural stem and progenitor cells (NPCs). The effects of 3K3A-APC on proliferation and differentiation were comparable to those obtained with fibroblast growth factor and brain-derived growth factor, respectively. Its promoting effect on neuronal differentiation was accompanied by inhibition of astroglial differentiation. In addition, 3K3A-APC exerted modest anti-apoptotic effects during neuronal production. These effects appeared to be mediated through specific protease activated receptors (PARs) and sphingosine-1-phosphate receptors (S1PRs), in that siRNA-mediated inhibition of PARs 1-4 and S1PRs 1-5 revealed that PAR1, PAR3, and S1PR1 are required for the neurogenic effects of 3K3A-APC. 3K3A-APC activated Akt, a downstream target of S1PR1, which was inhibited by S1PR1, PAR1, and PAR3 silencing. Adenoviral transduction of NPCs with a kinase-defective Akt mutant abolished the effects of 3K3A-APC on NPCs, confirming a key role of Akt activation in 3K3A-APC-mediated neurogenesis. Therefore, APC and its pharmacological analogs, by influencing PAR and S1PR signals in resident neural progenitor cells, may be potent modulators of both development and repair in the human CNS.
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Wang J, O'Bara MA, Pol SU, Sim FJ. CD133/CD140a-based isolation of distinct human multipotent neural progenitor cells and oligodendrocyte progenitor cells. Stem Cells Dev 2013; 22:2121-31. [PMID: 23488628 DOI: 10.1089/scd.2013.0003] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022] Open
Abstract
The mechanisms underlying the specification of oligodendrocyte fate from multipotent neural progenitor cells (NPCs) in developing human brain are unknown. In this study, we sought to identify antigens sufficient to distinguish NPCs free from oligodendrocyte progenitor cells (OPCs). We investigated the potential overlap of NPC and OPC antigens using multicolor fluorescence-activated cell sorting (FACS) for CD133/PROM1, A2B5, and CD140a/PDGFαR antigens. Surprisingly, we found that CD133, but not A2B5, was capable of enriching for OLIG2 expression, Sox10 enhancer activity, and oligodendrocyte potential. As a subpopulation of CD133-positive cells expressed CD140a, we asked whether CD133 enriched bone fide NPCs regardless of CD140a expression. We found that CD133(+)CD140a(-) cells were highly enriched for neurosphere initiating cells and were multipotent. Importantly, when analyzed immediately following isolation, CD133(+)CD140a(-) NPCs lacked the capacity to generate oligodendrocytes. In contrast, CD133(+)CD140a(+) cells were OLIG2-expressing OPCs capable of oligodendrocyte differentiation, but formed neurospheres with lower efficiency and were largely restricted to glial fate. Gene expression analysis further confirmed the stem cell nature of CD133(+)CD140a(-) cells. As human CD133(+) cells comprised both NPCs and OPCs, CD133 expression alone cannot be considered a specific marker of the stem cell phenotype, but rather comprises a heterogeneous mix of glial restricted as well as multipotent neural precursors. In contrast, CD133/CD140a-based FACS permits the separation of defined progenitor populations and the study of neural stem and oligodendrocyte fate specification in the human brain.
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Affiliation(s)
- Jing Wang
- Department of Pharmacology and Toxicology, School of Medicine and Biomedical Sciences, University at Buffalo, Buffalo, New York 14214, USA
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Pol SU, Lang JK, O'Bara MA, Cimato TR, McCallion AS, Sim FJ. Sox10-MCS5 enhancer dynamically tracks human oligodendrocyte progenitor fate. Exp Neurol 2013; 247:694-702. [PMID: 23507034 DOI: 10.1016/j.expneurol.2013.03.010] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2012] [Revised: 03/05/2013] [Accepted: 03/08/2013] [Indexed: 10/27/2022]
Abstract
In this study, we sought to establish a novel method to prospectively and dynamically identify live human oligodendrocyte precursor cells (OPCs) and oligodendrocyte lineage cells from brain dissociates and pluripotent stem cell culture. We selected a highly conserved enhancer element of the Sox10 gene, known as MCS5, which directs reporter expression to oligodendrocyte lineage cells in mouse and zebrafish. We demonstrate that lentiviral Sox10-MCS5 induced expression of GFP at high levels in a subpopulation of human CD140a/PDGFαR-sorted OPCs as well as their immature oligodendrocyte progeny. Furthermore, we show that almost all Sox10-MCS5:GFP(high) cells expressed OPC antigen CD140a and human OPCs expressing SOX10, OLIG2, and PDGFRA mRNAs could be prospectively identified using GFP based fluorescence activated cells sorting alone. Additionally, we established a human induced pluripotent cell (iPSC) line transduced with the Sox10-MCS5:GFP reporter using a Rex-Neo cassette. Similar to human primary cells, GFP expression was restricted to embryoid bodies containing both oligodendrocyte progenitor and oligodendrocyte cells and co-localized with NG2 and O4-positive cells respectively. As such, we have developed a novel reporter system that can track oligodendrocyte commitment in human cells, establishing a valuable tool to improve our understanding and efficiency of human oligodendrocyte derivation.
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Affiliation(s)
- Suyog U Pol
- Department of Pharmacology, School of Medicine and Biomedical Sciences, University at Buffalo, Buffalo, NY 14214, USA
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25
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Conway GD, O'Bara MA, Vedia BH, Pol SU, Sim FJ. Histone deacetylase activity is required for human oligodendrocyte progenitor differentiation. Glia 2012; 60:1944-53. [PMID: 22927334 DOI: 10.1002/glia.22410] [Citation(s) in RCA: 57] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2011] [Accepted: 07/31/2012] [Indexed: 11/09/2022]
Abstract
The molecular mechanisms controlling human oligodendrocyte development are poorly characterized. Microarray analysis of human oligodendrocyte progenitor cells (OPCs) and immature oligodendrocytes revealed that specific-class I histone deacetylase (HDAC) target genes were actively repressed during oligodendrocyte commitment. Although epigenetic regulation of oligodendrocyte differentiation has been established in rodent development, the role of HDACs in human OPCs remains undefined. We used HDAC inhibitors (HDACi) trichostatin A (TSA) and sodium butyrate to determine the importance of HDAC activity in human primary OPC differentiation. Treatment with either drug resulted in significant dose-dependent inhibition of O4(+) oligodendrocyte cell differentiation, reduction of oligodendrocyte morphological maturation, and downregulation of myelin basic protein mRNA. High dose TSA treatment was also associated with reduction in OPC proliferation. HDACi treatment prevented downregulation of SOX2, ID4, and TCF7L2 mRNAs but did not regulate HES5, suggesting that targets of HDAC repression may differ between species. These results predict that HDACi treatment would impair proliferation and differentiation by parenchymal oligodendrocyte progenitors, and thereby degrade their potential for endogenous repair in human demyelinating disease. © 2012 Wiley Periodicals, Inc.
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Affiliation(s)
- Gregory D Conway
- Department of Pharmacology and Toxicology, School of Medicine and Biomedical Sciences, University at Buffalo, Buffalo, New York 14214, USA
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26
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Kim DS, Lee DR, Kim HS, Yoo JE, Jung SJ, Lim BY, Jang J, Kang HC, You S, Hwang DY, Leem JW, Nam TS, Cho SR, Kim DW. Highly pure and expandable PSA-NCAM-positive neural precursors from human ESC and iPSC-derived neural rosettes. PLoS One 2012; 7:e39715. [PMID: 22911689 PMCID: PMC3401209 DOI: 10.1371/journal.pone.0039715] [Citation(s) in RCA: 55] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2011] [Accepted: 05/25/2012] [Indexed: 02/02/2023] Open
Abstract
Homogeneous culture of neural precursor cells (NPCs) derived from human pluripotent stem cells (hPSCs) would provide a powerful tool for biomedical applications. However, previous efforts to expand mechanically dissected neural rosettes for cultivation of NPCs remain concerns regarding non-neural cell contamination. In addition, several attempts to purify NPCs using cell surface markers have not demonstrated the expansion capability of the sorted cells. In the present study, we show that polysialic acid-neural cell adhesion molecule (PSA-NCAM) is detected in neural rosette cells derived from hPSCs, and employ PSA-NCAM as a marker for purifying expandable primitive NPCs from the neural rosettes. PSA-NCAM-positive NPCs (termed hNPCPSA-NCAM+) were isolated from the heterogeneous cell population of mechanically harvested neural rosettes using magnetic-based cell sorting. The hNPCPSA-NCAM+ extensively expressed neural markers such as Sox1, Sox2, Nestin, and Musashi-1 (80∼98% of the total cells) and were propagated for multiple passages while retaining their primitive characteristics in our culture condition. Interestingly, PSA-NCAM-negative cells largely exhibited characteristics of neural crest cells. The hNPCPSA-NCAM+ showed multipotency and responsiveness to instructive cues towards region-specific neuronal subtypes in vitro. When transplanted into the rat striatum, hNPCPSA-NCAM+ differentiated into neurons, astrocytes, and oligodendrocytes without particular signs of tumorigenesis. Furthermore, Ki67-positive proliferating cells and non-neural lineage cells were rarely detected in the grafts of hNPCPSA-NCAM+ compared to those of neural rosette cells. Our results suggest that PSA-NCAM-mediated cell isolation provides a highly expandable population of pure primitive NPCs from hPSCs that will lend themselves as a promising strategy for drug screening and cell therapy for neurodegenerative disorders.
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Affiliation(s)
- Dae-Sung Kim
- Department of Physiology, Yonsei University College of Medicine, Seodaemun-gu, Seoul, Korea
| | - Dongjin R. Lee
- Department of Physiology, Yonsei University College of Medicine, Seodaemun-gu, Seoul, Korea
- Brain Korea 21 Project for Medical Science, Yonsei University College of Medicine, Seoul, Korea
| | - Han-Soo Kim
- Center for Cell Therapy and Department of Laboratory Medicine, Yonsei University College of Medicine, Seoul, Korea
| | - Jeong-Eun Yoo
- Department of Physiology, Yonsei University College of Medicine, Seodaemun-gu, Seoul, Korea
- Brain Korea 21 Project for Medical Science, Yonsei University College of Medicine, Seoul, Korea
| | - Sung Jun Jung
- Department of Physiology, College of Medicine, Hanyang University, Seoul, Korea
| | - Bo Young Lim
- Department of Physiology, Yonsei University College of Medicine, Seodaemun-gu, Seoul, Korea
- Brain Korea 21 Project for Medical Science, Yonsei University College of Medicine, Seoul, Korea
| | - Jiho Jang
- Department of Physiology, Yonsei University College of Medicine, Seodaemun-gu, Seoul, Korea
| | - Hoon-Chul Kang
- Division of Pediatric Neurology, Department of Pediatrics, Severance Children’s Hospital, Yonsei University College of Medicine, Seoul, Korea
| | - Seungkwon You
- College of Life Sciences and Biotechnology, Korea University, Seoul, Korea
| | - Dong-Youn Hwang
- CHA Stem Cell Institute, CHA University College of Medicine, Seoul, Korea
| | - Joong Woo Leem
- Department of Physiology, Yonsei University College of Medicine, Seodaemun-gu, Seoul, Korea
| | - Taick Sang Nam
- Department of Physiology, Yonsei University College of Medicine, Seodaemun-gu, Seoul, Korea
| | - Sung-Rae Cho
- Department and Research Institute of Rehabilitation Medicine, Yonsei University College of Medicine, Seoul, Korea
| | - Dong-Wook Kim
- Department of Physiology, Yonsei University College of Medicine, Seodaemun-gu, Seoul, Korea
- Brain Korea 21 Project for Medical Science, Yonsei University College of Medicine, Seoul, Korea
- Severance Biomedical Research Institute, Yonsei University College of Medicine, Seoul, Korea
- * E-mail:
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27
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Wang T, You N, Tao K, Wang X, Zhao G, Xia N, Li N, Tang L, Liu W, Dou K. Notch is the key factor in the process of fetal liver stem/progenitor cells differentiation into hepatocytes. Dev Growth Differ 2012; 54:605-17. [DOI: 10.1111/j.1440-169x.2012.01363.x] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2011] [Revised: 05/09/2012] [Accepted: 05/09/2012] [Indexed: 12/30/2022]
Affiliation(s)
- Tao Wang
- Department of Hepatobiliary Surgery
| | - Nan You
- Department of Hepatobiliary Surgery
| | | | | | - Ge Zhao
- Department of Hepatobiliary Surgery
| | - Ning Xia
- Department of Hepatobiliary Surgery
| | - Nanlin Li
- Vascular and Endocrine Surgery; Xijing Hospital; Fourth Military Medical University; Xi'an; Shaanxi Province; China
| | - Lijun Tang
- PLA Center of General Surgery; General Hospital of Chengdu Army Region; Chengdu; Sichuan Province; China
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Abstract
Huntington's disease (HD) is an inherited, relentlessly progressive neurodegenerative disease with an invariably fatal outcome. HD is inherited in an autosomal dominant fashion, and is characterized pathologically by the loss of cortical and striatal neurons, and clinically by involuntary choreiform movements accompanied by progressive cognitive impairment and emotional lability. The disorder is caused by an expanded cystosine adenine guanine (CAG) tri-nucleotide repeat encoding polyglutamine (polyQ) in the first exon of the Huntingtin gene. There is a correlation between the number of CAG repeats and disease onset, such that in patients with CAG repeat lengths of 36 to 60, disease symptoms typically manifest after 35 years of age, whereas CAG repeat lengths >60 yield the more severe juvenile form of the disease. Even though mutant huntingtin is expressed throughout the brain, it is characterized by the selective degeneration of medium spiny neurons of the caudate and putamen, which heralds more widespread neuronal degeneration with disease progression. The mechanisms of cell dysfunction and death in HD have been the subjects of a number of studies, which have led to therapeutic strategies largely based on the amelioration of mutant huntingtin-related metabolic impairment and cellular toxicity. Each of these approaches has aimed to delay or stop the preferential degeneration of medium spiny neurons early in the disease course. Yet, in later stages of the disease, after cell death has become prominent, cell replacement therapy (whether by direct cell transplantation or by the mobilization of endogenous progenitors) may comprise a stronger potential avenue for therapy. In this review, we will consider recent progress in the transplantation of fetal striatal cells to the HD brain, as well as emerging alternative sources for human striatal progenitor cells. We will then consider the potential application of gene therapy toward the induction of striatal neurogenesis and neuronal recruitment, with an eye toward its potential therapeutic use in HD.
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Affiliation(s)
- Abdellatif Benraiss
- Department of Neurology, Center for Translational Neuromedicine, University of Rochester Medical Center, Rochester, NY USA
| | - Steven A. Goldman
- Department of Neurology, Center for Translational Neuromedicine, University of Rochester Medical Center, Rochester, NY USA
- Department of Neurosurgery, University of Rochester Medical Center, Rochester, NY 14642 USA
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Sim FJ, McClain CR, Schanz SJ, Protack TL, Windrem MS, Goldman SA. CD140a identifies a population of highly myelinogenic, migration-competent and efficiently engrafting human oligodendrocyte progenitor cells. Nat Biotechnol 2011; 29:934-41. [PMID: 21947029 PMCID: PMC3365580 DOI: 10.1038/nbt.1972] [Citation(s) in RCA: 157] [Impact Index Per Article: 12.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2011] [Accepted: 08/11/2011] [Indexed: 01/06/2023]
Abstract
Experimental models of myelin disorders can be treated by the transplantation of oligodendrocyte progenitor cells (OPCs) into the affected brain or spinal cord. OPCs express gangliosides recognized by MAb A2B5, but this marker also identifies lineage-restricted astrocytes and immature neurons. To establish a more efficient means of isolating myelinogenic OPCs, we asked if FACS could be used to sort PDGFα receptor+ cells from fetal human forebrain, based on expression of the PDGFRα epitope CD140a. CD140a+ isolates were maintained as mitotic bipotential progenitors that could be instructed to either oligodendrocyte or astrocyte fate. Transplanted CD140a+ cells were highly migratory, and rapidly and robustly myelinated the hypomyelinated shiverer mouse brain, more efficiently than did A2B5-sorted cells. Microarray analysis of CD140a+ cells revealed their differential expression of CD9, as well as of PTN-PTPRZ1, wnt, notch and BMP pathway components, indicating the dynamic interaction of self-renewal and fate-restricting pathways in these cells.
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Affiliation(s)
- Fraser J Sim
- Department of Neurology, University of Rochester Medical Center, Rochester, New York, USA
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