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Yi L, Ma H, Yang X, Zheng Q, Zhong J, Ye S, Li X, Chen D, Li H, Li C. Cotransplantation of NSCs and ethyl stearate promotes synaptic plasticity in PD rats by Drd1/ERK/AP-1 signaling pathway. JOURNAL OF ETHNOPHARMACOLOGY 2024; 321:117292. [PMID: 37806537 DOI: 10.1016/j.jep.2023.117292] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/08/2023] [Revised: 10/04/2023] [Accepted: 10/06/2023] [Indexed: 10/10/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Traditional Chinese medicine views kidney shortage as a significant contributor to the aetiology of Parkinson's disease (PD), a neurodegenerative condition that is closely linked to aging. In clinical, patients with Parkinson's disease are often treated with Testudinis Carapax et Plastrum (Plastrum Testudinis, PT), a traditional Chinese medication that tonifies the kidney. Previous research has demonstrated that ethyl stearate (PubChem CID: 8122), an active component of Plastrum Testudinis Extracted with ethyl acetate (PTE), may encourage neural stem cells (NSCs) development into dopaminergic (DAergic) neurons. However, the effectiveness and mechanism of cotransplantation of ethyl stearate and NSCs in treating PD model rats still require further investigation. AIM OF THE STUDY PD is a neurodegenerative condition marked by the loss and degradation of dopaminergic neurons in the substantia nigra of the midbrain. Synaptic damage is also a critical pathology in PD. Because of their self-renewal, minimal immunogenicity, and capacity to differentiate into dopaminergic (DAergic) neurons, NSCs are a prospective treatment option for Parkinson's disease cell transplantation therapy. However, encouraging transplanted NSCs to differentiate into dopaminergic neurons and enhancing synaptic plasticity in vivo remains a significant challenge in improving the efficacy of NSCs transplantation for PD. This investigation seeks to examine the efficacy of cotransplantation of NSCs and ethyl stearate in PD model rats and its mechanism related to synaptic plasticity. MATERIALS AND METHODS On 6-hydroxydopamine-induced PD model rats, we performed NSCs transplantation therapy and cotransplantation therapy involving ethyl stearate and NSCs. Rotating behavior induced by apomorphine (APO) and pole climbing tests were used to evaluate behavioral changes. Using a variety of methods, including Western blotting (WB), immunofluorescence analysis, enzyme-linked immunosorbent assay, and quantitative real-time polymerase chain reaction (qRT-PCR), we examined the function and potential molecular mechanisms of ethyl stearate in combined NSCs transplantation therapy. RESULTS In the rat PD model, cotransplantation of ethyl stearate with NSCs dramatically reduced motor dysfunction, restored TH protein levels, and boosted dopamine levels in the striatum, according to our findings. Furthermore, the expression levels of SYN1 and PSD95, markers of synaptic plasticity, and BDNF, closely related to synaptic plasticity, were significantly increased. Cotransplantation with ethyl stearate and NSCs also increased the expression levels of Dopamine Receptor D1 (Drd1), an important receptor in the dopamine neural circuit, accompanied by an increase in MMP9 levels, ERK1/2 phosphorylation levels, and c-fos protein levels. CONCLUSIONS According to the results of our investigation, cotransplantation of ethyl stearate and NSCs significantly improves the condition of PD model rats. We found that cotransplantation of ethyl stearate and NSCs may promote the expression of MMP9 by regulating the Drd1-ERK-AP-1 pathway, thus improving synaptic plasticity after NSCs transplantation. These findings provide new experimental support for the treatment of PD with the kidney tonifying Chinese medicine Plastrum Testudinis and suggest a potential therapeutic strategy for PD based on cotransplantation therapy.
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Affiliation(s)
- Lan Yi
- School of Basic Medical Sciences, Guangzhou University of Chinese Medicine, Guangzhou, Guangdong Province, 510006, PR China; Research Centre of Basic Intergrative Medicine, School of Basic Medical Sciences, Guangzhou University of Chinese Medicine, Guangzhou, Guangdong Province, 510006, PR China; Guangzhou Huaxia Vocational College, Guangzhou, Guangdong Province, 510935, PR China
| | - Haisheng Ma
- School of Basic Medical Sciences, Guangzhou University of Chinese Medicine, Guangzhou, Guangdong Province, 510006, PR China; Research Centre of Basic Intergrative Medicine, School of Basic Medical Sciences, Guangzhou University of Chinese Medicine, Guangzhou, Guangdong Province, 510006, PR China
| | - Xiaoxiao Yang
- School of Basic Medical Sciences, Guangzhou University of Chinese Medicine, Guangzhou, Guangdong Province, 510006, PR China; Research Centre of Basic Intergrative Medicine, School of Basic Medical Sciences, Guangzhou University of Chinese Medicine, Guangzhou, Guangdong Province, 510006, PR China
| | - Qi Zheng
- School of Information Science and Technology, Guangdong University of Foreign Studies, Guangzhou, Guangdong Province, 510006, PR China
| | - Jun Zhong
- School of Basic Medical Sciences, Guangzhou University of Chinese Medicine, Guangzhou, Guangdong Province, 510006, PR China; Research Centre of Basic Intergrative Medicine, School of Basic Medical Sciences, Guangzhou University of Chinese Medicine, Guangzhou, Guangdong Province, 510006, PR China
| | - Sen Ye
- School of Basic Medical Sciences, Guangzhou University of Chinese Medicine, Guangzhou, Guangdong Province, 510006, PR China; Research Centre of Basic Intergrative Medicine, School of Basic Medical Sciences, Guangzhou University of Chinese Medicine, Guangzhou, Guangdong Province, 510006, PR China
| | - Xican Li
- School of Pharmaceutical Sciences, Guangzhou University of Chinese Medicine, Guangzhou, Guangdong Province, 510006, PR China
| | - Dongfeng Chen
- School of Basic Medical Sciences, Guangzhou University of Chinese Medicine, Guangzhou, Guangdong Province, 510006, PR China
| | - Hui Li
- School of Basic Medical Sciences, Guangzhou University of Chinese Medicine, Guangzhou, Guangdong Province, 510006, PR China.
| | - Caixia Li
- School of Basic Medical Sciences, Guangzhou University of Chinese Medicine, Guangzhou, Guangdong Province, 510006, PR China; Research Centre of Basic Intergrative Medicine, School of Basic Medical Sciences, Guangzhou University of Chinese Medicine, Guangzhou, Guangdong Province, 510006, PR China.
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2
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Morrison V, Houpert M, Trapani J, Brockman A, Kingsley P, Katdare K, Layden H, Nguena-Jones G, Trevisan A, Maguire-Zeiss K, Marnett L, Bix G, Ihrie R, Carter B. Jedi-1/MEGF12-mediated phagocytosis controls the pro-neurogenic properties of microglia in the ventricular-subventricular zone. Cell Rep 2023; 42:113423. [PMID: 37952151 PMCID: PMC10842823 DOI: 10.1016/j.celrep.2023.113423] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2023] [Revised: 10/03/2023] [Accepted: 10/25/2023] [Indexed: 11/14/2023] Open
Abstract
Microglia are the primary phagocytes in the central nervous system and clear dead cells generated during development or disease. The phagocytic process shapes the microglia phenotype, which affects the local environment. A unique population of microglia resides in the ventricular-subventricular zone (V-SVZ) of neonatal mice, but how they influence the neurogenic niche is not well understood. Here, we demonstrate that phagocytosis contributes to a pro-neurogenic microglial phenotype in the V-SVZ and that these microglia phagocytose apoptotic cells via the engulfment receptor Jedi-1. Deletion of Jedi-1 decreases apoptotic cell clearance, triggering a neuroinflammatory microglia phenotype that resembles dysfunctional microglia in neurodegeneration and aging and that reduces neural precursor proliferation via elevated interleukin-1β signaling; interleukin-1 receptor inhibition rescues precursor proliferation in vivo. Together, these results reveal a critical role for Jedi-1 in connecting microglial phagocytic activity to the maintenance of a pro-neurogenic phenotype in the developing V-SVZ.
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Affiliation(s)
- Vivianne Morrison
- Department of Biochemistry, Vanderbilt University, Nashville, TN 37232, USA; Vanderbilt Brain Institute, Vanderbilt University, Nashville, TN 37235, USA; Department of Cell and Molecular Biology, Tulane University, New Orleans, LA 70118, USA
| | - Matthew Houpert
- Department of Biochemistry, Vanderbilt University, Nashville, TN 37232, USA; Vanderbilt Brain Institute, Vanderbilt University, Nashville, TN 37235, USA
| | - Jonathan Trapani
- Department of Biochemistry, Vanderbilt University, Nashville, TN 37232, USA; Vanderbilt Brain Institute, Vanderbilt University, Nashville, TN 37235, USA
| | - Asa Brockman
- Department of Cell and Developmental Biology, Vanderbilt University, Nashville, TN 37235, USA; Vanderbilt Brain Institute, Vanderbilt University, Nashville, TN 37235, USA
| | - Philip Kingsley
- Department of Biochemistry, Vanderbilt University, Nashville, TN 37232, USA
| | - Ketaki Katdare
- Vanderbilt Brain Institute, Vanderbilt University, Nashville, TN 37235, USA
| | - Hillary Layden
- Department of Biochemistry, Vanderbilt University, Nashville, TN 37232, USA
| | - Gabriela Nguena-Jones
- Department of Biochemistry, Vanderbilt University, Nashville, TN 37232, USA; Vanderbilt Brain Institute, Vanderbilt University, Nashville, TN 37235, USA
| | - Alexandra Trevisan
- Department of Biochemistry, Vanderbilt University, Nashville, TN 37232, USA; Department of Developmental Neurobiology, St. Jude Children's Research Hospital, Memphis, TN 38105, USA
| | | | - Lawrence Marnett
- Department of Biochemistry, Vanderbilt University, Nashville, TN 37232, USA; Department of Chemistry, Vanderbilt University, Nashville, TN 37235, USA; Department of Pharmacology, Vanderbilt University, Nashville, TN 37235, USA; A.B. Hancock Jr. Memorial Laboratory for Cancer Research, Vanderbilt-Ingram Cancer Center, Nashville, TN 37232, USA
| | - Gregory Bix
- Center for Clinical Neuroscience Research, Tulane University, New Orleans, LA 70118, USA
| | - Rebecca Ihrie
- Department of Cell and Developmental Biology, Vanderbilt University, Nashville, TN 37235, USA; Vanderbilt Brain Institute, Vanderbilt University, Nashville, TN 37235, USA
| | - Bruce Carter
- Department of Biochemistry, Vanderbilt University, Nashville, TN 37232, USA; Vanderbilt Brain Institute, Vanderbilt University, Nashville, TN 37235, USA.
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3
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Wei C, Benzow K, Koob MD, Gomez CM, Du X. The Transcription Factor, α1ACT, Acts Through a MicroRNA Network to Regulate Neurogenesis and Cell Death During Neonatal Cerebellar Development. CEREBELLUM (LONDON, ENGLAND) 2023; 22:651-662. [PMID: 35729466 PMCID: PMC10307715 DOI: 10.1007/s12311-022-01431-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Accepted: 06/09/2022] [Indexed: 11/29/2022]
Abstract
MicroRNAs, a class of small RNA regulators, function throughout neurodevelopment, from neural stem cell neurogenesis to neuronal maturation, synaptic formation, and plasticity. α1ACT, a transcription factor (TF), plays a critical role in neonatal cerebellar development by regulating an ensemble of genes. Of these, ChIP-seq analysis matched near 50% genes directly regulated by α1ACT. Yet, more than half the regulated transcripts lacked direct interaction with α1ACT. To investigate whether α1ACT acts through a microRNA network, we studied α1ACT-associated simultaneous miRNA:mRNA transcriptome profiles, using miRNA-seq paired with RNA-seq. Thirty-one differentially expressed miRNAs (DEMs) associated with α1ACT-regulated differentially expressed genes (DEGs) were profiled in α1ACT-overexpressing PC12 cells and were further validated in neonatal transgenic mouse cerebellum overexpressing α1ACT in a context-dependent manner. Here, we also demonstrated that α1ACT facilitates neurogenesis and development of dendritic synapses and is partially a result of the downregulation of the miR-99 cluster, miR-143, miR-23, miR-146, miR-363, and miR-484. On the other hand, the miR-181, miR-125, and miR-708 clusters were upregulated by α1ACT, which inhibit MAPK signaling and cell death pathways by targeting Ask1, Odc1, Atf4, and Nuf2 for decreased expression. MiR-181a-5p was verified as the most abundant DEM in neonatal cerebellum, which was further induced by α1ACT. Overall, under α1ACT modulation, up-/downregulated miRNA clusters with their paired target genes may form a regulatory network controlling the balance between the neuronal proliferation, differentiation, and cell death in the cerebellum to promote neonatal development. Our findings concerning the α1ACT-related miRNA/mRNA expression profiles in neonatal cerebellum may inform future investigations for cerebellar development.
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Affiliation(s)
- Cenfu Wei
- Department of Neurology, University of Chicago, Chicago, IL, 60637, USA
| | - Kellie Benzow
- Department of Laboratory Medicine and Pathology, University of Minnesota, Minneapolis, MN, 55455, USA
| | - Michael D Koob
- Department of Laboratory Medicine and Pathology, University of Minnesota, Minneapolis, MN, 55455, USA
| | | | - Xiaofei Du
- Department of Neurology, University of Chicago, Chicago, IL, 60637, USA.
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4
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Unzueta-Larrinaga P, Barrena-Barbadillo R, Ibarra-Lecue I, Horrillo I, Villate A, Recio M, Meana JJ, Diez-Alarcia R, Mentxaka O, Segarra R, Etxebarria N, Callado LF, Urigüen L. Isolation and Differentiation of Neurons and Glial Cells from Olfactory Epithelium in Living Subjects. Mol Neurobiol 2023; 60:4472-4487. [PMID: 37118325 PMCID: PMC10293402 DOI: 10.1007/s12035-023-03363-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2023] [Accepted: 04/19/2023] [Indexed: 04/30/2023]
Abstract
The study of psychiatric and neurological diseases requires the substrate in which the disorders occur, that is, the nervous tissue. Currently, several types of human bio-specimens are being used for research, including postmortem brains, cerebrospinal fluid, induced pluripotent stem (iPS) cells, and induced neuronal (iN) cells. However, these samples are far from providing a useful predictive, diagnostic, or prognostic biomarker. The olfactory epithelium is a region close to the brain that has received increased interest as a research tool for the study of brain mechanisms in complex neuropsychiatric and neurological diseases. The olfactory sensory neurons are replaced by neurogenesis throughout adult life from stem cells on the basement membrane. These stem cells are multipotent and can be propagated in neurospheres, proliferated in vitro and differentiated into multiple cell types including neurons and glia. For all these reasons, olfactory epithelium provides a unique resource for investigating neuronal molecular markers of neuropsychiatric and neurological diseases. Here, we describe the isolation and culture of human differentiated neurons and glial cells from olfactory epithelium of living subjects by an easy and non-invasive exfoliation method that may serve as a useful tool for the research in brain diseases.
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Affiliation(s)
- Paula Unzueta-Larrinaga
- Department of Pharmacology, University of the Basque Country, UPV/EHU, Leioa, Spain
- Biocruces Bizkaia Health Research Institute, Barakaldo, Spain
| | - Rocío Barrena-Barbadillo
- Biocruces Bizkaia Health Research Institute, Barakaldo, Spain
- Department of Nursery, University of the Basque Country UPV/EHU, Leioa, Spain
| | - Inés Ibarra-Lecue
- Department of Pharmacology, University of the Basque Country, UPV/EHU, Leioa, Spain
| | - Igor Horrillo
- Department of Pharmacology, University of the Basque Country, UPV/EHU, Leioa, Spain
- Biocruces Bizkaia Health Research Institute, Barakaldo, Spain
- Centro de Investigación Biomédica en Red de Salud Mental, CIBERSAM, Madrid, Spain
| | - Aitor Villate
- Department of Analytical Chemistry, University of the Basque Country UPV/EHU, Leioa, Spain
- PiE-UPV/EHU, Plentzia, ItsasEstazioa, Areatza Pasealekua, 48620, Plentzia, Spain
| | - Maria Recio
- Biocruces Bizkaia Health Research Institute, Barakaldo, Spain
- Department of Psychiatry, Cruces University Hospital, Barakaldo, Spain
| | - J Javier Meana
- Department of Pharmacology, University of the Basque Country, UPV/EHU, Leioa, Spain
- Biocruces Bizkaia Health Research Institute, Barakaldo, Spain
- Centro de Investigación Biomédica en Red de Salud Mental, CIBERSAM, Madrid, Spain
| | - Rebeca Diez-Alarcia
- Department of Pharmacology, University of the Basque Country, UPV/EHU, Leioa, Spain
- Biocruces Bizkaia Health Research Institute, Barakaldo, Spain
- Centro de Investigación Biomédica en Red de Salud Mental, CIBERSAM, Madrid, Spain
| | - Oihane Mentxaka
- Biocruces Bizkaia Health Research Institute, Barakaldo, Spain
- Department of Psychiatry, Cruces University Hospital, Barakaldo, Spain
- Department of Neurosciences, University of the Basque Country, UPV/EHU, Leioa, Spain
| | - Rafael Segarra
- Biocruces Bizkaia Health Research Institute, Barakaldo, Spain
- Centro de Investigación Biomédica en Red de Salud Mental, CIBERSAM, Madrid, Spain
- Department of Psychiatry, Cruces University Hospital, Barakaldo, Spain
- Department of Neurosciences, University of the Basque Country, UPV/EHU, Leioa, Spain
| | - Nestor Etxebarria
- Department of Analytical Chemistry, University of the Basque Country UPV/EHU, Leioa, Spain
- PiE-UPV/EHU, Plentzia, ItsasEstazioa, Areatza Pasealekua, 48620, Plentzia, Spain
| | - Luis F Callado
- Department of Pharmacology, University of the Basque Country, UPV/EHU, Leioa, Spain
- Biocruces Bizkaia Health Research Institute, Barakaldo, Spain
- Centro de Investigación Biomédica en Red de Salud Mental, CIBERSAM, Madrid, Spain
| | - Leyre Urigüen
- Department of Pharmacology, University of the Basque Country, UPV/EHU, Leioa, Spain.
- Biocruces Bizkaia Health Research Institute, Barakaldo, Spain.
- Centro de Investigación Biomédica en Red de Salud Mental, CIBERSAM, Madrid, Spain.
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5
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Xiang X, Jiang X, Lu X. Regulation of neural stem cell self-renewal, proliferation and differentiation by the RhoA guanine nucleotide exchange factor Arhgef 1. Gene 2023; 863:147306. [PMID: 36813057 DOI: 10.1016/j.gene.2023.147306] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2022] [Revised: 02/01/2023] [Accepted: 02/17/2023] [Indexed: 02/22/2023]
Abstract
The role of the Arhgef1 as a RhoA-specific guanine nucleotide exchange factor has been widely investigated in the immune system. Our previous findings reveal that Arhgef 1 is highly expressed in neural stem cells (NSCs) and controls the process of neurite formation. However, the functional role of Arhgef 1 in NSCs remains poorly understood. In order to investigate the role of Arhgef 1 in NSCs, Arhgef 1 expression in NSCs was reduced by using lentivirus-mediated short hairpin RNA interference. Our results indicate that down-regulated expression of Arhgef 1 reduced the self-renewal, proliferation capacity of NSCs and affect cell fate determination. In addition, the comparative transcriptome analysis from RNA-seq data determines the mechanisms of deficits in Arhgef 1 knockdown NSCs. Altogether, our present studies show that Arhgef 1 down-regulation leads to interruption of the cell cycle procession. The importance of Arhgef 1 for regulating self-renewal, proliferation and differentiation in NSCs is reported for the first time.
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Affiliation(s)
- Xiaoliang Xiang
- Key Laboratory of Research and Utilization of Ethnomedicinal Plant Resources of Hunan Province,College of Biological and Food Engineering, Huaihua University, Huaihua 418008, China.
| | - Xia Jiang
- Key Laboratory of Research and Utilization of Ethnomedicinal Plant Resources of Hunan Province,College of Biological and Food Engineering, Huaihua University, Huaihua 418008, China
| | - Xiaomin Lu
- Department of Pathology, Hunan University of Medicine Huaihua, Hunan 418000, China
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6
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Morrison VE, Houpert MG, Trapani JB, Brockman AA, Kingsley PJ, Katdare KA, Layden HM, Nguena-Jones G, Trevisan AJ, Maguire-Zeiss KA, Marnett LJ, Bix GJ, Ihrie RA, Carter BD. Jedi-1/MEGF12-mediated phagocytosis controls the pro-neurogenic properties of microglia in the ventricular-subventricular zone. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2023:2023.03.03.531012. [PMID: 36945622 PMCID: PMC10028845 DOI: 10.1101/2023.03.03.531012] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 03/09/2023]
Abstract
Microglia are the primary phagocytes in the central nervous system and are responsible for clearing dead cells generated during development or disease. The phagocytic process shapes the phenotype of the microglia, which affects the local environment. A unique population of microglia reside in the ventricular-subventricular zone (V-SVZ) of neonatal mice, but how they influence this neurogenic niche is not well-understood. Here, we demonstrate that phagocytosis creates a pro-neurogenic microglial phenotype in the V-SVZ and that these microglia phagocytose apoptotic cells via the engulfment receptor Jedi-1. Deletion of Jedi-1 decreases apoptotic cell clearance, triggering the development of a neuroinflammatory phenotype, reminiscent of neurodegenerative and-age-associated microglia, that reduces neural precursor proliferation via elevated interleukin (IL)-1β signaling; inhibition of IL-1 receptor rescues precursor proliferation in vivo. Together, these results reveal a critical role for Jedi-1 in connecting microglial phagocytic activity to a phenotype that promotes neurogenesis in the developing V-SVZ.
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Affiliation(s)
- Vivianne E Morrison
- Vanderbilt University Department of Biochemistry
- Vanderbilt Brain Institute
- Tulane University Center for Clinical Neuroscience Research
| | - Matthew G Houpert
- Vanderbilt University Department of Biochemistry
- Vanderbilt Brain Institute
| | - Jonathan B Trapani
- Vanderbilt University Department of Biochemistry
- Vanderbilt Brain Institute
| | - Asa A Brockman
- Vanderbilt University Department of Cell and Developmental Biology
- Vanderbilt Brain Institute
| | | | | | | | | | - Alexandra J Trevisan
- Vanderbilt University Department of Biochemistry
- St. Jude Children's Research Hospital
| | | | - Lawrence J Marnett
- Vanderbilt University Department of Biochemistry
- Vanderbilt University Department of Chemistry
- Vanderbilt University Department of Pharmacology
- A.B. Hancock Jr. Memorial Laboratory for Cancer Research
| | - Gregory J Bix
- Tulane University Center for Clinical Neuroscience Research
| | - Rebecca A Ihrie
- Vanderbilt University Department of Cell and Developmental Biology
- Vanderbilt Brain Institute
| | - Bruce D Carter
- Vanderbilt University Department of Biochemistry
- Vanderbilt Brain Institute
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7
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Sminia P, Guipaud O, Viktorsson K, Ahire V, Baatout S, Boterberg T, Cizkova J, Dostál M, Fernandez-Palomo C, Filipova A, François A, Geiger M, Hunter A, Jassim H, Edin NFJ, Jordan K, Koniarová I, Selvaraj VK, Meade AD, Milliat F, Montoro A, Politis C, Savu D, Sémont A, Tichy A, Válek V, Vogin G. Clinical Radiobiology for Radiation Oncology. RADIOBIOLOGY TEXTBOOK 2023:237-309. [DOI: 10.1007/978-3-031-18810-7_5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 09/30/2023]
Abstract
AbstractThis chapter is focused on radiobiological aspects at the molecular, cellular, and tissue level which are relevant for the clinical use of ionizing radiation (IR) in cancer therapy. For radiation oncology, it is critical to find a balance, i.e., the therapeutic window, between the probability of tumor control and the probability of side effects caused by radiation injury to the healthy tissues and organs. An overview is given about modern precision radiotherapy (RT) techniques, which allow optimal sparing of healthy tissues. Biological factors determining the width of the therapeutic window are explained. The role of the six typical radiobiological phenomena determining the response of both malignant and normal tissues in the clinic, the 6R’s, which are Reoxygenation, Redistribution, Repopulation, Repair, Radiosensitivity, and Reactivation of the immune system, is discussed. Information is provided on tumor characteristics, for example, tumor type, growth kinetics, hypoxia, aberrant molecular signaling pathways, cancer stem cells and their impact on the response to RT. The role of the tumor microenvironment and microbiota is described and the effects of radiation on the immune system including the abscopal effect phenomenon are outlined. A summary is given on tumor diagnosis, response prediction via biomarkers, genetics, and radiomics, and ways to selectively enhance the RT response in tumors. Furthermore, we describe acute and late normal tissue reactions following exposure to radiation: cellular aspects, tissue kinetics, latency periods, permanent or transient injury, and histopathology. Details are also given on the differential effect on tumor and late responding healthy tissues following fractionated and low dose rate irradiation as well as the effect of whole-body exposure.
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8
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Melrose J. Fractone Stem Cell Niche Components Provide Intuitive Clues in the Design of New Therapeutic Procedures/Biomatrices for Neural Repair. Int J Mol Sci 2022; 23:5148. [PMID: 35563536 PMCID: PMC9103880 DOI: 10.3390/ijms23095148] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2022] [Revised: 04/25/2022] [Accepted: 05/02/2022] [Indexed: 02/04/2023] Open
Abstract
The aim of this study was to illustrate recent developments in neural repair utilizing hyaluronan as a carrier of olfactory bulb stem cells and in new bioscaffolds to promote neural repair. Hyaluronan interacts with brain hyalectan proteoglycans in protective structures around neurons in perineuronal nets, which also have roles in the synaptic plasticity and development of neuronal cognitive properties. Specialist stem cell niches termed fractones located in the sub-ventricular and sub-granular regions of the dentate gyrus of the hippocampus migrate to the olfactory bulb, which acts as a reserve of neuroprogenitor cells in the adult brain. The extracellular matrix associated with the fractone stem cell niche contains hyaluronan, perlecan and laminin α5, which regulate the quiescent recycling of stem cells and also provide a means of escaping to undergo the proliferation and differentiation to a pluripotent migratory progenitor cell type that can participate in repair processes in neural tissues. Significant improvement in the repair of spinal cord injury and brain trauma has been reported using this approach. FGF-2 sequestered by perlecan in the neuroprogenitor niche environment aids in these processes. Therapeutic procedures have been developed using olfactory ensheathing stem cells and hyaluronan as a carrier to promote neural repair processes. Now that recombinant perlecan domain I and domain V are available, strategies may also be expected in the near future using these to further promote neural repair strategies.
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Affiliation(s)
- James Melrose
- Raymond Purves Bone and Joint Research Laboratory, Kolling Institute, Northern Sydney Local Health District, St. Leonards, NSW 2065, Australia;
- Graduate School of Biomedical Engineering, University of New South Wales, Sydney, NSW 2052, Australia
- Sydney Medical School, Northern, The University of Sydney, Royal North Shore Hospital, St. Leonards, NSW 2065, Australia
- Faculty of Medicine and Health, University of Sydney, Royal North Shore Hospital, St. Leonards, NSW 2065, Australia
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9
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The role of autophagy in the metabolism and differentiation of stem cells. Biochim Biophys Acta Mol Basis Dis 2022; 1868:166412. [DOI: 10.1016/j.bbadis.2022.166412] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2021] [Revised: 03/03/2022] [Accepted: 04/01/2022] [Indexed: 02/08/2023]
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10
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Puranik N, Arukha AP, Yadav SK, Yadav D, Jin JO. Exploring the Role of Stem Cell Therapy in Treating Neurodegenerative Diseases: Challenges and Current Perspectives. Curr Stem Cell Res Ther 2022; 17:113-125. [DOI: 10.2174/1574888x16666210810103838] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2021] [Revised: 05/18/2021] [Accepted: 06/01/2021] [Indexed: 11/22/2022]
Abstract
:
Several human neurological disorders, such as Parkinson’s disease, Alzheimer’s disease,
amyotrophic lateral sclerosis, Huntington’s disease, spinal cord injury, multiple sclerosis, and brain
stroke, are caused by the injury to neurons or glial cells. The recent years have witnessed the successful
generation of neurons and glia cells driving efforts to develop stem-cell-based therapies for
patients to combat a broad spectrum of human neurological diseases. The inadequacy of suitable
cell types for cell replacement therapy in patients suffering from neurological disorders has hampered
the development of this promising therapeutic approach. Attempts are thus being made to reconstruct
viable neurons and glial cells from different stem cells, such as embryonic stem cells,
mesenchymal stem cells, and neural stem cells. Dedicated research to cultivate stem cell-based
brain transplantation therapies has been carried out. We aim at compiling the breakthroughs in the
field of stem cell-based therapy for the treatment of neurodegenerative maladies, emphasizing the
shortcomings faced, victories achieved, and the future prospects of the therapy in clinical settings.
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Affiliation(s)
- Nidhi Puranik
- Department of Biological Science, Bharathiar University, Coimbatore, Tamil Nadu-641046, India
| | - Ananta Prasad Arukha
- Comparative Diagnostic
and Population Medicine, College of Veterinary Medicine, University of Florida, Gainesville- 32608, U.S.A
| | - Shiv Kumar Yadav
- Department of Botany, Government Lal Bahadur Shastri PG college, Sironj, Vidisha, Madhya Pradesh, India
| | - Dhananjay Yadav
- Department of Medical Biotechnology, Yeungnam University, Gyeongsan 712-749, Korea
| | - Jun O. Jin
- Department
of Medical Biotechnology, Yeungnam University, Gyeongsan 712-749, Korea
- Research Institute of Cell Culture, Yeungnam University, Gyeongsan 38541, Korea
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11
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Ricca A, Cascino F, Gritti A. Isolation and Culture of Neural Stem/Progenitor Cells from the Postnatal Periventricular Region. Methods Mol Biol 2022; 2389:11-31. [PMID: 34557998 DOI: 10.1007/978-1-0716-1783-0_2] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Due to the complexity of the neural stem cell (NSC) niche organization, the lack of specific NSC markers, and the difficulty of long-term tracking these cells and their progeny in vivo, the functional properties of the endogenous NSCs remain largely unexplored. These limitations have led to the development of methodologies to efficiently isolate, expand, and differentiate NSCs ex vivo. We describe here the peculiarities of the neurosphere assay (NSA) as a methodology that allows to efficiently isolate, expand, and differentiate somatic NSCs derived from the postnatal and adult forebrain periventricular region while preserving proliferation, self-renewal, and multipotency, the main attributes that provide their functional identification.
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Affiliation(s)
- Alessandra Ricca
- San Raffaele Telethon Institute for Gene Therapy (SR-Tiget), IRCCS San Raffaele Scientific Institute, Milan, Italy
| | - Federica Cascino
- San Raffaele Telethon Institute for Gene Therapy (SR-Tiget), IRCCS San Raffaele Scientific Institute, Milan, Italy
| | - Angela Gritti
- San Raffaele Telethon Institute for Gene Therapy (SR-Tiget), IRCCS San Raffaele Scientific Institute, Milan, Italy.
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12
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Tousian H, Razavi BM, Hosseinzadeh H. In search of elixir: Pharmacological agents against stem cell senescence. IRANIAN JOURNAL OF BASIC MEDICAL SCIENCES 2021; 24:868-880. [PMID: 34712416 PMCID: PMC8528253 DOI: 10.22038/ijbms.2021.51917.11773] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/12/2020] [Accepted: 03/02/2021] [Indexed: 12/13/2022]
Abstract
Stem cell senescence causes different complications. In addition to the aging phenomenon, stem cell senescence has been investigated in various concepts such as cancer, adverse drug effects, and as a limiting factor in cell therapy. This manuscript examines protective medicines and supplements which are capable of hindering stem cell senescence. We searched the databases such as EMBASE, PubMed, and Web of Science with the keywords “stem cell,” “progenitor cell,” “satellite,” “senescence” and excluded the keywords “cancer,” “tumor,” “malignancy” and “carcinoma” until June 2020. Among these results, we chose 47 relevant studies. Our investigation indicates that most of these studies examined endothelial progenitor cells, hematopoietic stem cells, mesenchymal stem cells, adipose-derived stem cells, and a few others were about less-discussed types of stem cells such as cardiac stem cells, myeloblasts, and induced pluripotent stem cells. From another aspect, 17β-Estradiol, melatonin, metformin, rapamycin, coenzyme Q10, N-acetyl cysteine, and vitamin C were the most studied agents, while the main protective mechanism was through telomerase activity enhancement or oxidative damage ablation. Although many of these studies are in vitro, they are still worthwhile. Stem cell senescence in the in vitro expansion stage is an essential concern in clinical procedures of cell therapy. Moreover, in vitro studies are the first step for further in vivo and clinical studies. It is noteworthy to mention the fact that these protective agents have been used in the clinical setting for various purposes for a long time. Given that, we only need to examine their systemic anti-senescence effects and effective dosages.
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Affiliation(s)
- Hourieh Tousian
- Vice-chancellery of Food and Drug,Shahroud University of Medical Sciences, Shahroud, Iran
| | - Bibi Marjan Razavi
- Targeted Drug Delivery Research Center, Pharmaceutical Technology Institute, Mashhad University of Medical Sciences, Mashhad, Iran.,Department of Pharmacodynamics and Toxicology, School of Pharmacy, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Hossein Hosseinzadeh
- Pharmaceutical Research Center, Pharmaceutical Technology Institute, Mashhad University of Medical Sciences, Mashhad, Iran.,Department of Pharmacodynamics and Toxicology, School of Pharmacy, Mashhad University of Medical Sciences, Mashhad, Iran
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13
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Mastrototaro G, Zaghi M, Massimino L, Moneta M, Mohammadi N, Banfi F, Bellini E, Indrigo M, Fagnocchi G, Bagliani A, Taverna S, Rohm M, Herzig S, Sessa A. TBL1XR1 Ensures Balanced Neural Development Through NCOR Complex-Mediated Regulation of the MAPK Pathway. Front Cell Dev Biol 2021; 9:641410. [PMID: 33708771 PMCID: PMC7940385 DOI: 10.3389/fcell.2021.641410] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2020] [Accepted: 02/04/2021] [Indexed: 12/19/2022] Open
Abstract
TBL1XR1 gene is associated with multiple developmental disorders presenting several neurological aspects. The relative protein is involved in the modulation of important cellular pathways and master regulators of transcriptional output, including nuclear receptor repressors, Wnt signaling, and MECP2 protein. However, TBL1XR1 mutations (including complete loss of its functions) have not been experimentally studied in a neurological context, leaving a knowledge gap in the mechanisms at the basis of the diseases. Here, we show that Tbl1xr1 knock-out mice exhibit behavioral and neuronal abnormalities. Either the absence of TBL1XR1 or its point mutations interfering with stability/regulation of NCOR complex induced decreased proliferation and increased differentiation in neural progenitors. We suggest that this developmental unbalance is due to a failure in the regulation of the MAPK cascade. Taken together, our results broaden the molecular and functional aftermath of TBL1XR1 deficiency associated with human disorders.
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Affiliation(s)
- Giuseppina Mastrototaro
- Stem Cell and Neurogenesis Unit, Division of Neuroscience, IRCCS San Raffaele Scientific Institute, Milan, Italy
| | - Mattia Zaghi
- Stem Cell and Neurogenesis Unit, Division of Neuroscience, IRCCS San Raffaele Scientific Institute, Milan, Italy
| | - Luca Massimino
- Stem Cell and Neurogenesis Unit, Division of Neuroscience, IRCCS San Raffaele Scientific Institute, Milan, Italy
| | - Matteo Moneta
- Stem Cell and Neurogenesis Unit, Division of Neuroscience, IRCCS San Raffaele Scientific Institute, Milan, Italy
| | - Neda Mohammadi
- Neurimmunology Unit, Division of Neuroscience, IRCCS San Raffaele Scientific Institute, Milan, Italy
| | - Federica Banfi
- Stem Cell and Neurogenesis Unit, Division of Neuroscience, IRCCS San Raffaele Scientific Institute, Milan, Italy
| | - Edoardo Bellini
- Stem Cell and Neurogenesis Unit, Division of Neuroscience, IRCCS San Raffaele Scientific Institute, Milan, Italy
| | - Marzia Indrigo
- Stem Cell and Neurogenesis Unit, Division of Neuroscience, IRCCS San Raffaele Scientific Institute, Milan, Italy
| | - Giulia Fagnocchi
- Stem Cell and Neurogenesis Unit, Division of Neuroscience, IRCCS San Raffaele Scientific Institute, Milan, Italy
| | - Anna Bagliani
- Medical Oncology Unit, ASST Ovest Milanese, Legnano Hospital, Legnano, Italy
| | - Stefano Taverna
- Neurimmunology Unit, Division of Neuroscience, IRCCS San Raffaele Scientific Institute, Milan, Italy
| | - Maria Rohm
- Institute for Diabetes and Cancer IDC, Helmholtz Center, Munich, Germany.,Joint Heidelberg-IDC Translational Diabetes Program, Inner Medicine 1, Heidelberg University Hospital, Heidelberg, Germany.,Medical Faculty, Technical University Munich, Munich, Germany.,German Center for Diabetes Research, Oberschleissheim, Germany
| | - Stephan Herzig
- Institute for Diabetes and Cancer IDC, Helmholtz Center, Munich, Germany.,Joint Heidelberg-IDC Translational Diabetes Program, Inner Medicine 1, Heidelberg University Hospital, Heidelberg, Germany.,Medical Faculty, Technical University Munich, Munich, Germany.,German Center for Diabetes Research, Oberschleissheim, Germany
| | - Alessandro Sessa
- Stem Cell and Neurogenesis Unit, Division of Neuroscience, IRCCS San Raffaele Scientific Institute, Milan, Italy
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14
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GanDouLing promotes proliferation and differentiation of neural stem cells in the mouse model of Wilson's disease. Biosci Rep 2021; 41:227101. [PMID: 33300046 PMCID: PMC7786325 DOI: 10.1042/bsr20202717] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2020] [Revised: 11/30/2020] [Accepted: 11/30/2020] [Indexed: 01/18/2023] Open
Abstract
Wilson’s disease (WD) is an autosomal recessive disease caused by mutation of the ATPase copper transporting β (ATP7B) gene, resulting in abnormal copper metabolism. We aimed to investigate the protective effect of GanDouLing (GDL) on neural stem cell (NSC) function in a mouse model of WD. NSCs were treated with different concentrations of GDL alone or in combination with penicillamine, following which we evaluated cellular growth, apoptosis, and differentiation. Nuclear factor E2-related factor 2 (Nrf2) pathway and NOD-like receptor family pyrin domain-containing 3 (NLRP3) inflammasome activation were analyzed via Western blotting. Treatment with GDL alone or in combination with penicillamine significantly increased proliferation and inhibited apoptosis of NSCs in a dose-dependent manner. In addition, GDL treatment remarkably promoted differentiation of NSCs. Consistently, levels of class III β-tubulin (Tuj1) and microtubule-associated protein 2 (MAP2) were significantly elevated, whereas glial fibrillary acidic protein (GFAP) levels were obviously suppressed in the presence of GDL or penicillamine. In vivo assays confirmed that GDL increased the ratio of Ki67+, Tuj1+, and MAP2+ cells and suppressed apoptosis in the hippocampal region in WD mice. Behavioral assays revealed that both GDL and penicillamine improved memory ability in WD models. Mechanistically, GDL treatment led to activation of Nrf2 signaling and suppression of the NLRP3 inflammasome in WD mice. Notably, inhibition of Nrf2 signaling reversed the protective effects of GDL on hippocampal NSCs. Collectively, these findings demonstrate that GDL exerts a protective effect on NSCs and promotes neurogenesis by targeting Nrf2 signaling and the NLRP3 inflammasome in WD.
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15
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Park CW, Jung BK, Ryu KY. Disruption of the polyubiquitin gene Ubb reduces the self-renewal capacity of neural stem cells. Biochem Biophys Res Commun 2020; 527:372-378. [PMID: 32321641 DOI: 10.1016/j.bbrc.2020.04.042] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2020] [Accepted: 04/10/2020] [Indexed: 02/08/2023]
Abstract
Ubiquitin (Ub) is a highly conserved eukaryotic protein that plays pivotal roles in cellular signal transduction, differentiation, and proteolysis. Although we have previously reported that disruption of the polyubiquitin gene Ubb is associated with the dysregulated differentiation of neural stem cells (NSCs) into neurons, it is unclear how gene expression patterns are altered in Ubb knockout (KO) NSCs, and whether this altered gene expression contributes to Ubb KO neural phenotypes. To answer these questions, we used RNA-Seq to compare the transcriptomes of Ubb KO NSCs and Ubb heterozygous (HT) controls. We found that the expression levels of most proliferation markers were decreased in Ubb KO NSCs. To determine whether the reduced levels of proliferation markers were due to reduced self-renewal of NSCs, such as radial glia, we measured the levels of the radial glia marker, Pax6, in mouse embryonic brains at 14.5 dpc. We found that Pax6 levels were decreased and the ventricular zone was thinner in the embryonic brains of Ubb KO mice compared to those of wild-type (WT) control mice. To determine whether the decreased self-renewal of Ubb KO NSCs was caused by cell-autonomous defects and not due to their microenvironment, we transplanted NSCs into WT mouse brains using a cannula system. In mouse brain sections, immunoreactivity of the NSC marker, nestin, was much lower in Ubb KO NSCs than in Ubb HT controls. Therefore, our data suggest that cell-autonomous defects, due to the disruption of Ubb, lead to a decrease in the self-renewal capacity of NSCs and may contribute to their dysregulated differentiation into neurons.
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Affiliation(s)
- Chul-Woo Park
- Department of Life Science, University of Seoul, Seoul, 02504, Republic of Korea
| | - Byung-Kwon Jung
- Department of Life Science, University of Seoul, Seoul, 02504, Republic of Korea
| | - Kwon-Yul Ryu
- Department of Life Science, University of Seoul, Seoul, 02504, Republic of Korea.
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16
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Tousian H, Razavi BM, Hosseinzadeh H. Looking for immortality: Review of phytotherapy for stem cell senescence. IRANIAN JOURNAL OF BASIC MEDICAL SCIENCES 2020; 23:154-166. [PMID: 32405357 PMCID: PMC7211350 DOI: 10.22038/ijbms.2019.40223.9522] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
In this paper, we discussed natural agents with protective effects against stem cell senescence. Different complications have been observed due to stem cell senescence and the most important of them is "Aging". Senescent cells have not normal function and their secretary inflammatory factors induce chronic inflammation in body which causes different pathologies. Stem cell senescence also has been investigated in different diseases or as drug adverse effects. We searched databases such as Embase, Pubmed and Web of Science with keywords "stem cell", "progenitor cell", "satellite", "senescence" and excluded keywords "cancer", "tumor", "malignancy" and "carcinoma" without time limitation until May 2019. Among them we chose 52 articles that have investigated protective effects of natural agents (extracts or molecules) against cellular senescence in different kind of adult stem cells. Most of these studies were in endothelial progenitor cells, hematopoietic stem cells, mesenchymal stem cells, adipose-derived stem cells and few were about other kinds of stem cells. Most studied agents were resveratrol and ginseng which are also commercially available as supplement. Most protective molecular targets were telomerase and anti-oxidant enzymes to preserve genome integrity and reduce senescence-inducing signals. Due to the safe and long history of herbal usage in clinic, phytotherapy can be used for preventing stem cell senescence and their related complication. Resveratrol and ginseng can be the first choice for this aim due to their protective mechanisms in various kinds of stem cells and their long term clinical usage.
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Affiliation(s)
- Hourieh Tousian
- Department of Pharmacodynamics and Toxicology, School of Pharmacy, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Bibi Marjan Razavi
- Targeted Drug Delivery Research Center, Pharmaceutical Technology Institute, Mashhad University of Medical Sciences, Mashhad, Iran.,Department of Pharmacodynamics and Toxicology, School of Pharmacy, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Hossein Hosseinzadeh
- Pharmaceutical Research Center, Pharmaceutical Technology Institute, Mashhad University of Medical Sciences, Mashhad, Iran.,Department of Pharmacodynamics and Toxicology, School of Pharmacy, Mashhad University of Medical Sciences, Mashhad, Iran
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17
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La Rosa P, Russo M, D'Amico J, Petrillo S, Aquilano K, Lettieri-Barbato D, Turchi R, Bertini ES, Piemonte F. Nrf2 Induction Re-establishes a Proper Neuronal Differentiation Program in Friedreich's Ataxia Neural Stem Cells. Front Cell Neurosci 2019; 13:356. [PMID: 31417369 PMCID: PMC6685360 DOI: 10.3389/fncel.2019.00356] [Citation(s) in RCA: 33] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2019] [Accepted: 07/18/2019] [Indexed: 12/15/2022] Open
Abstract
Frataxin deficiency is the pathogenic cause of Friedreich’s Ataxia, an autosomal recessive disease characterized by the increase of oxidative stress and production of free radicals in the cell. Although the onset of the pathology occurs in the second decade of life, cognitive differences and defects in brain structure and functional activation are observed in patients, suggesting developmental defects to take place during fetal neurogenesis. Here, we describe impairments in proliferation, stemness potential and differentiation in neural stem cells (NSCs) isolated from the embryonic cortex of the Frataxin Knockin/Knockout mouse, a disease animal model whose slow-evolving phenotype makes it suitable to study pre-symptomatic defects that may manifest before the clinical onset. We demonstrate that enhancing the expression and activity of the antioxidant response master regulator Nrf2 ameliorates the phenotypic defects observed in NSCs, re-establishing a proper differentiation program.
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Affiliation(s)
- Piergiorgio La Rosa
- Unit of Neuromuscular and Neurodegenerative Diseases, IRCCS Bambino Gesù Children's Hospital, Rome, Italy
| | - Marta Russo
- Unit of Neuromuscular and Neurodegenerative Diseases, IRCCS Bambino Gesù Children's Hospital, Rome, Italy
| | - Jessica D'Amico
- Unit of Neuromuscular and Neurodegenerative Diseases, IRCCS Bambino Gesù Children's Hospital, Rome, Italy
| | - Sara Petrillo
- Unit of Neuromuscular and Neurodegenerative Diseases, IRCCS Bambino Gesù Children's Hospital, Rome, Italy
| | - Katia Aquilano
- Department of Biology, University of Rome Tor Vergata, Rome, Italy
| | - Daniele Lettieri-Barbato
- Department of Biology, University of Rome Tor Vergata, Rome, Italy.,IRCCS Fondazione Santa Lucia, Rome, Italy
| | - Riccardo Turchi
- Department of Biology, University of Rome Tor Vergata, Rome, Italy
| | - Enrico S Bertini
- Unit of Neuromuscular and Neurodegenerative Diseases, IRCCS Bambino Gesù Children's Hospital, Rome, Italy
| | - Fiorella Piemonte
- Unit of Neuromuscular and Neurodegenerative Diseases, IRCCS Bambino Gesù Children's Hospital, Rome, Italy
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18
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Deshpande K, Saatian B, Martirosian V, Lin M, Julian A, Neman J. Isolation of Neural Stem Cells from Whole Brain Tissues of Adult Mice. ACTA ACUST UNITED AC 2019; 49:e80. [DOI: 10.1002/cpsc.80] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Affiliation(s)
- Krutika Deshpande
- Department of Neurological Surgery, Keck School of Medicine University of Southern California Los Angeles California
| | - Behnaz Saatian
- Department of Neurological Surgery, Keck School of Medicine University of Southern California Los Angeles California
| | - Vahan Martirosian
- Department of Neurological Surgery, Keck School of Medicine University of Southern California Los Angeles California
| | - Michelle Lin
- Department of Neurological Surgery, Keck School of Medicine University of Southern California Los Angeles California
| | - Alex Julian
- Department of Neurological Surgery, Keck School of Medicine University of Southern California Los Angeles California
| | - Josh Neman
- Department of Neurological Surgery, Keck School of Medicine University of Southern California Los Angeles California
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19
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Lee BH, Park JN, Lee EJ, Moon YW, Wang JH. Therapeutic Efficacy of Spherical Aggregated Human Bone Marrow-Derived Mesenchymal Stem Cells Cultured for Osteochondral Defects of Rabbit Knee Joints. Am J Sports Med 2018; 46:2242-2252. [PMID: 30011257 DOI: 10.1177/0363546518780991] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Abstract
BACKGROUND Engraftment and longevity of transplanted cells are crucial for stem cell-based cartilage treatment. PURPOSE To determine whether cultured spherical cell masses of human bone marrow-derived mesenchymal stem cells (hBM-MSCs) could improve engraftment at defect sites and to examine their corresponding effects on osteochondral regeneration. STUDY DESIGN Controlled laboratory study. METHODS A cylindrical osteochondral defect (5 mm wide × 5 mm deep) was created in trochlear grooves of rabbit knees. The single-cell type of hBM-MSCs with fibrin glue, the spherical type of hBM-MSCs with fibrin glue, and cell-free fibrin glue (control) were each implanted into osteochondral defect sites. A total of 18 rabbit knees were randomly assigned to 1 of the 3 groups (3 rabbits per group). Animals were sacrificed at 6 and 12 weeks after transplantation. Repaired tissues were evaluated via gross examination, histologic examination, and immunofluorescence analysis. RESULTS Transplantation with spherical hBM-MSCs exhibited superior overall osteochondral restoration when compared with the single-type group, as evidenced by well-ordered mature collagen fibrils produced during subchondral bone formation in the zonation phenomenon. Immunofluorescence analysis of osteochondral defect areas with human-specific antigen revealed a larger number of mesenchymal stem cells in the spherical-type group than the single cell-type group. CONCLUSION Transplantation of spherical hBM-MSCs was better than single cells from monolayer culture in improving osteochondral regeneration. CLINICAL RELEVANCE The findings demonstrate a simple strategy for enhancing the potency of stem cells required for restoration of osteochondral defects. Furthermore, this strategy may be implemented with other types of stem/progenitor cell-based therapies.
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Affiliation(s)
- Byung Hoon Lee
- Department of Orthopedic Surgery, Kang-Dong Sacred Heart Hospital, Hallym University Medical School, Seoul, Republic of Korea
| | - Jong Nam Park
- Biomedical Research Institute, Seoul National University Hospital, Seoul, Republic of Korea
| | - Eun Ju Lee
- Biomedical Research Institute, Seoul National University Hospital, Seoul, Republic of Korea
| | - Young Wan Moon
- Department of Orthopaedic Surgery, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Republic of Korea
| | - Joon Ho Wang
- Department of Orthopaedic Surgery, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Republic of Korea.,Department of Health Sciences and Technology, SAIHST, Sungkyunkwan University, Seoul, Republic of Korea.,Department of Medical Device Management and Research, SAIHST, Sungkyunkwan University, Seoul, Republic of Korea
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20
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Mukae Y, Itoh M, Noguchi R, Furukawa K, Arai KI, Oyama JI, Toda S, Nakayama K, Node K, Morita S. The addition of human iPS cell-derived neural progenitors changes the contraction of human iPS cell-derived cardiac spheroids. Tissue Cell 2018; 53:61-67. [PMID: 30060828 DOI: 10.1016/j.tice.2018.05.002] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2017] [Revised: 04/14/2018] [Accepted: 05/04/2018] [Indexed: 01/13/2023]
Abstract
BACKGROUND We havebeen attempting to use cardiac spheroids to construct three-dimensional contractilestructures for failed hearts. Recent studies have reported that neuralprogenitors (NPs) play significant roles in heart regeneration. However, theeffect of NPs on the cardiac spheroid has not yet been elucidated. OBJECTIVE This studyaims to demonstrate the influence of NPs on the function of cardiac spheroids. METHODS Thespheroids were constructed on a low-attachment-well plate by mixing humaninduced pluripotent stem (hiPS) cell-derived cardiomyocytes and hiPScell-derived NPs (hiPS-NPs). The ratio of hiPS-NPs was set at 0%, 10%, 20%,30%, and 40% of the total cell number of spheroids, which was 2500. The motionwas recorded, and the fractional shortening and the contraction velocity weremeasured. RESULTS Spheroidswere formed within 48 h after mixing the cells, except for the spheroidscontaining 0% hiPS-NPs. Observation at day 7 revealed significant differencesin the fractional shortening (analysis of variance; p = 0.01). The bestfractional shortening was observed with the spheroids containing 30% hiPS-NPs.Neuronal cells were detected morphologically within the spheroids under aconfocal microscope. CONCLUSION Theaddition of hiPS-NPs influenced the contractile function of the cardiacspheroids. Further studies are warranted to elucidate the underlying mechanism.
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Affiliation(s)
- Yosuke Mukae
- Department of Thoracic and Cardiovascular Surgery, Faculty of Medicine, Saga University, Saga, Japan
| | - Manabu Itoh
- Department of Thoracic and Cardiovascular Surgery, Faculty of Medicine, Saga University, Saga, Japan
| | - Ryo Noguchi
- Department of Thoracic and Cardiovascular Surgery, Faculty of Medicine, Saga University, Saga, Japan
| | - Kojiro Furukawa
- Department of Thoracic and Cardiovascular Surgery, Faculty of Medicine, Saga University, Saga, Japan
| | - Ken-Ichi Arai
- Department of Regenerative Medicine and Biomedical Engineering, Faculty of Medicine, Saga University, Saga, Japan
| | - Jun-Ichi Oyama
- Department of Cardiology, Faculty of Medicine, Saga University, Saga, Japan
| | - Shuji Toda
- Department of Pathology & Microbiology, Faculty of Medicine, Saga University, Saga, Japan
| | - Koichi Nakayama
- Department of Regenerative Medicine and Biomedical Engineering, Faculty of Medicine, Saga University, Saga, Japan
| | - Koichi Node
- Department of Cardiology, Faculty of Medicine, Saga University, Saga, Japan
| | - Shigeki Morita
- Department of Cardiovascular Surgery, Kyushu Medical Center, A Hospital of National Hospital Organization, Fukuoka, Japan.
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21
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Noguchi H, Miyagi-Shiohira C, Nakashima Y. Induced Tissue-Specific Stem Cells and Epigenetic Memory in Induced Pluripotent Stem Cells. Int J Mol Sci 2018; 19:E930. [PMID: 29561778 PMCID: PMC5979574 DOI: 10.3390/ijms19040930] [Citation(s) in RCA: 36] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2018] [Revised: 03/09/2018] [Accepted: 03/19/2018] [Indexed: 02/07/2023] Open
Abstract
Induced pluripotent stem (iPS) cells have significant implications for overcoming most of the ethical issues associated with embryonic stem (ES) cells. The pattern of expressed genes, DNA methylation, and covalent histone modifications in iPS cells are very similar to those in ES cells. However, it has recently been shown that, following the reprogramming of mouse/human iPS cells, epigenetic memory is inherited from the parental cells. These findings suggest that the phenotype of iPS cells may be influenced by their cells of origin and that their skewed differentiation potential may prove useful in the generation of differentiated cell types that are currently difficult to produce from ES/iPS cells for the treatment of human diseases. Our recent study demonstrated the generation of induced tissue-specific stem (iTS) cells by transient overexpression of the reprogramming factors combined with tissue-specific selection. iTS cells are cells that inherit numerous components of epigenetic memory from donor tissue and acquire self-renewal potential. This review describes the "epigenetic memory" phenomenon in iPS and iTS cells and the possible clinical applications of these stem cells.
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Affiliation(s)
- Hirofumi Noguchi
- Department of Regenerative Medicine, Graduate School of Medicine, University of the Ryukyus, Okinawa 903-0215, Japan.
| | - Chika Miyagi-Shiohira
- Department of Regenerative Medicine, Graduate School of Medicine, University of the Ryukyus, Okinawa 903-0215, Japan.
| | - Yoshiki Nakashima
- Department of Regenerative Medicine, Graduate School of Medicine, University of the Ryukyus, Okinawa 903-0215, Japan.
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22
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Ludwig PE, Thankam FG, Patil AA, Chamczuk AJ, Agrawal DK. Brain injury and neural stem cells. Neural Regen Res 2018; 13:7-18. [PMID: 29451199 PMCID: PMC5840995 DOI: 10.4103/1673-5374.224361] [Citation(s) in RCA: 27] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 12/22/2017] [Indexed: 12/26/2022] Open
Abstract
Many therapies with potential for treatment of brain injury have been investigated. Few types of cells have spurred as much interest and excitement as stem cells over the past few decades. The multipotentiality and self-renewing characteristics of stem cells confer upon them the capability to regenerate lost tissue in ischemic or degenerative conditions as well as trauma. While stem cells have not yet proven to be clinically effective in many such conditions as was once hoped, they have demonstrated some effects that could be manipulated for clinical benefit. The various types of stem cells have similar characteristics, and largely differ in terms of origin; those that have differentiated to some extent may exhibit limited capability in differentiation potential. Stem cells can aid in decreasing lesion size and improving function following brain injury.
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Affiliation(s)
- Parker E. Ludwig
- Department of Clinical and Translational Science, Creighton University School of Medicine, Omaha, NE, USA
| | - Finosh G. Thankam
- Department of Clinical and Translational Science, Creighton University School of Medicine, Omaha, NE, USA
| | - Arun A. Patil
- Department of Clinical and Translational Science, Creighton University School of Medicine, Omaha, NE, USA
- Department of Neurosurgery, Creighton University School of Medicine, Omaha, NE, USA
| | - Andrea J. Chamczuk
- Department of Neurosurgery, Creighton University School of Medicine, Omaha, NE, USA
| | - Devendra K. Agrawal
- Department of Clinical and Translational Science, Creighton University School of Medicine, Omaha, NE, USA
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23
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Fernández-Flores F, García-Verdugo JM, Martín-Ibáñez R, Herranz C, Fondevila D, Canals JM, Arús C, Pumarola M. Characterization of the canine rostral ventricular-subventricular zone: Morphological, immunohistochemical, ultrastructural, and neurosphere assay studies. J Comp Neurol 2017; 526:721-741. [DOI: 10.1002/cne.24365] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2016] [Revised: 10/09/2017] [Accepted: 11/16/2017] [Indexed: 02/01/2023]
Affiliation(s)
- Francisco Fernández-Flores
- Veterinary Faculty, Department of Animal Medicine and Surgery; Universitat Autònoma de Barcelona; Bellaterra (Cerdanyola del Vallès) Barcelona Spain
- Networking Research Center on Bioengineering, Biomaterials and Nanomedicine (CIBER-BBN); Universitat Autònoma de Barcelona; Bellaterra (Cerdanyola del Vallès) Barcelona Spain
| | - José Manuel García-Verdugo
- Laboratorio de Neurobiologia comparada, Institut Cavanilles de Biodiversitat i Biologia Evolutiva, Universitat de València, CIBERNED; Valencia Spain
| | - Raquel Martín-Ibáñez
- Stem Cells and Regenerative Medicine Laboratory; Production and Validation Center of Advanced Therapies (Creatio), Faculty of Medicine and Health Science, Department of Biomedicine; University of Barcelona; Barcelona Spain
- Neuroscience Institute, University of Barcelona; Barcelona Spain
- August Pi i Sunyer Biomedical Research Institute (IDIBAPS); Barcelona Spain
- Networked Biomedical Research Centre for Neurodegenerative Disorders (CIBERNED); Valencia Spain
| | - Cristina Herranz
- Stem Cells and Regenerative Medicine Laboratory; Production and Validation Center of Advanced Therapies (Creatio), Faculty of Medicine and Health Science, Department of Biomedicine; University of Barcelona; Barcelona Spain
- Neuroscience Institute, University of Barcelona; Barcelona Spain
- August Pi i Sunyer Biomedical Research Institute (IDIBAPS); Barcelona Spain
- Networked Biomedical Research Centre for Neurodegenerative Disorders (CIBERNED); Valencia Spain
| | - Dolors Fondevila
- Veterinary Faculty, Department of Animal Medicine and Surgery; Universitat Autònoma de Barcelona; Bellaterra (Cerdanyola del Vallès) Barcelona Spain
| | - Josep María Canals
- Stem Cells and Regenerative Medicine Laboratory; Production and Validation Center of Advanced Therapies (Creatio), Faculty of Medicine and Health Science, Department of Biomedicine; University of Barcelona; Barcelona Spain
- Neuroscience Institute, University of Barcelona; Barcelona Spain
- August Pi i Sunyer Biomedical Research Institute (IDIBAPS); Barcelona Spain
- Networked Biomedical Research Centre for Neurodegenerative Disorders (CIBERNED); Valencia Spain
| | - Carles Arús
- Networking Research Center on Bioengineering, Biomaterials and Nanomedicine (CIBER-BBN); Universitat Autònoma de Barcelona; Bellaterra (Cerdanyola del Vallès) Barcelona Spain
- Departament de Bioquímica i Biologia Molecular; Universitat Autònoma de Barcelona; Bellaterra (Cerdanyola del Vallès) Barcelona Spain
- Institut de Biotecnologia i de Biomedicina, Universitat Autònoma de Barcelona; Bellaterra (Cerdanyola del Vallès) Barcelona Spain
| | - Martí Pumarola
- Veterinary Faculty, Department of Animal Medicine and Surgery; Universitat Autònoma de Barcelona; Bellaterra (Cerdanyola del Vallès) Barcelona Spain
- Networking Research Center on Bioengineering, Biomaterials and Nanomedicine (CIBER-BBN); Universitat Autònoma de Barcelona; Bellaterra (Cerdanyola del Vallès) Barcelona Spain
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Platt FM. Emptying the stores: lysosomal diseases and therapeutic strategies. Nat Rev Drug Discov 2017; 17:133-150. [PMID: 29147032 DOI: 10.1038/nrd.2017.214] [Citation(s) in RCA: 163] [Impact Index Per Article: 23.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
Lysosomal storage disorders (LSDs) - designated as 'orphan' diseases - are inborn errors of metabolism caused by defects in genes that encode proteins involved in various aspects of lysosomal homeostasis. For many years, LSDs were viewed as unattractive targets for the development of therapies owing to their low prevalence. However, the development and success of the first commercial biologic therapy for an LSD - enzyme replacement therapy for type 1 Gaucher disease - coupled with regulatory incentives rapidly catalysed commercial interest in therapeutically targeting LSDs. Despite ongoing challenges, various therapeutic strategies for LSDs now exist, with many agents approved, undergoing clinical trials or in preclinical development.
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Affiliation(s)
- Frances M Platt
- Department of Pharmacology, University of Oxford, Oxford OX1 3QT, UK
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25
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Regulatory Role of Redox Balance in Determination of Neural Precursor Cell Fate. Stem Cells Int 2017; 2017:9209127. [PMID: 28804501 PMCID: PMC5540383 DOI: 10.1155/2017/9209127] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2017] [Accepted: 06/22/2017] [Indexed: 12/15/2022] Open
Abstract
In 1990s, reports of discovery of a small group of cells capable of proliferation and contribution to formation of new neurons in the central nervous system (CNS) reversed a century-old concept on lack of neurogenesis in the adult mammalian brain. These cells are found in all stages of human life and contribute to normal cellular turnover of the CNS. Therefore, the identity of regulating factors that affect their proliferation and differentiation is a highly noteworthy issue for basic scientists and their clinician counterparts for therapeutic purposes. The cues for such control are embedded in developmental and environmental signaling through a highly regulated tempo-spatial expression of specific transcription factors. Novel findings indicate the importance of reactive oxygen species (ROS) in the regulation of this signaling system. The elusive nature of ROS signaling in many vital processes from cell proliferation to cell death creates a complex literature in this field. Here, we discuss the emerging thoughts on the importance of redox regulation of proliferation and maintenance in mammalian neural stem and progenitor cells under physiological and pathological conditions. The current knowledge on ROS-mediated changes in redox-sensitive proteins that govern the molecular mechanisms in proliferation and differentiation of these cells is reviewed.
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26
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Park MH, Lee HJ, Lee HL, Son DJ, Ju JH, Hyun BK, Jung SH, Song JK, Lee DH, Hwang CJ, Han SB, Kim S, Hong JT. Parkin Knockout Inhibits Neuronal Development via Regulation of Proteasomal Degradation of p21. Am J Cancer Res 2017; 7:2033-2045. [PMID: 28656059 PMCID: PMC5485421 DOI: 10.7150/thno.19824] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2017] [Accepted: 03/31/2017] [Indexed: 11/05/2022] Open
Abstract
PARK2 encodes for the E3 ubiquitin ligase parkin and is implicated in the development of Parkinson's disease (PD). Although the neuroprotective role of parkin is well known, the mechanism of PARK2's function in neural stem differentiation has not yet been thoroughly studied. Co-expressions network analysis showed that synaptosomal-associated protein 25 (SNAP-25) and brain-derived neurotrophic factor (BDNF) were positively correlated with parkin, but negatively correlated with p21 in human patient brain. We investigated a link between the ubiquitin E3 ligase parkin and proteasomal degradation of p21 for the control of neural stem cell differentiation. We found that the neurogenesis was lowered in PARK2 knockout (KO) mice compared with non-tg mice. Expression of the marker protein for neural cell differentiation such as class III beta tubulin (TUBBIII), glial fibrillary acidic protein (GFAP) and neurofilament, as well as SNAP25 and BDNF, was down regulated in PARK2 KO mice. Associated with the loss of differentiation function, p21 protein was highly accumulated in the neural stem cells of PARK2 KO mice. We discovered that p21 directly binds with parkin and is ubiquitinated by parkin which resulted in the loss of cell differentiation ability. Introduction of p21 shRNA in PARK2 KO mice significantly rescued the differentiation efficacy as well as SNAP25 and BDNF expression. c-Jun N-terminal kinase (JNK) pathway is implicated in neurogenesis and p21 degradation. We also defined the decreased p21 ubiquitination and differentiation ability were reversed after treatment with JNK inhibitor, SP600125 in PARK2 KO mice derived neural stem cells. Thus, the present study indicated that parkin knockout inhibits neural stem cell differentiation by JNK-dependent proteasomal degradation of p21.
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27
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Promotion and guidance of neural network formation on SU-8 photoresist microchannels adjusted with multilayer films. ANNUAL INTERNATIONAL CONFERENCE OF THE IEEE ENGINEERING IN MEDICINE AND BIOLOGY SOCIETY. IEEE ENGINEERING IN MEDICINE AND BIOLOGY SOCIETY. ANNUAL INTERNATIONAL CONFERENCE 2017; 2016:4447-4450. [PMID: 28269265 DOI: 10.1109/embc.2016.7591714] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Abstract
Induction of neural stem/progenitor cells (NSPCs) and establishment of neural network are important issues on neural engineering. In this work, a platform was designed to control and evaluate the differentiation of NSPCs, neurite direction, and to promote the neurite outgrowth. Polyelectrolyte multilayer (PEM) films provide surface properties by and have been used to regulate NSPCs differentiation in our previous study. Herein, a culture platform composed of SU-8 microchannel and PEM films was designed to achieve the goal of promoting NSPCs differentiation and to evaluate the effect of PEM films on the guidance of neural network formation. In this culture platform, NSPCs were induced into functional neurons, and neural network formation was accomplished on ITO glass-PEM films successfully.
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28
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Zhao Y, Liu X, Wang W. Spiking Neural P Systems with Neuron Division and Dissolution. PLoS One 2016; 11:e0162882. [PMID: 27627104 PMCID: PMC5023168 DOI: 10.1371/journal.pone.0162882] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2016] [Accepted: 08/30/2016] [Indexed: 11/29/2022] Open
Abstract
Spiking neural P systems are a new candidate in spiking neural network models. By using neuron division and budding, such systems can generate/produce exponential working space in linear computational steps, thus provide a way to solve computational hard problems in feasible (linear or polynomial) time with a “time-space trade-off” strategy. In this work, a new mechanism called neuron dissolution is introduced, by which redundant neurons produced during the computation can be removed. As applications, uniform solutions to two NP-hard problems: SAT problem and Subset Sum problem are constructed in linear time, working in a deterministic way. The neuron dissolution strategy is used to eliminate invalid solutions, and all answers to these two problems are encoded as indices of output neurons. Our results improve the one obtained in Science China Information Sciences, 2011, 1596-1607 by Pan et al.
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Affiliation(s)
- Yuzhen Zhao
- School of Management Science and Engineering, Shandong Normal University, Jinan, China
| | - Xiyu Liu
- School of Management Science and Engineering, Shandong Normal University, Jinan, China
- * E-mail:
| | - Wenping Wang
- School of Management Science and Engineering, Shandong Normal University, Jinan, China
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29
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Birbrair A, Sattiraju A, Zhu D, Zulato G, Batista I, Nguyen VT, Messi ML, Solingapuram Sai KK, Marini FC, Delbono O, Mintz A. Novel Peripherally Derived Neural-Like Stem Cells as Therapeutic Carriers for Treating Glioblastomas. Stem Cells Transl Med 2016; 6:471-481. [PMID: 28191774 PMCID: PMC5442817 DOI: 10.5966/sctm.2016-0007] [Citation(s) in RCA: 39] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/06/2016] [Accepted: 08/09/2016] [Indexed: 12/29/2022] Open
Abstract
Glioblastoma (GBM), an aggressive grade IV astrocytoma, is the most common primary malignant adult brain tumor characterized by extensive invasiveness, heterogeneity, and angiogenesis. Standard treatment options such as radiation and chemotherapy have proven to be only marginally effective in treating GBM because of its invasive nature. Therefore, extensive efforts have been put forth to develop tumor‐tropic stem cells as viable therapeutic vehicles with potential to treat even the most invasive tumor cells that are harbored within areas of normal brain. To this end, we discovered a newly described NG2‐expressing cell that we isolated from a distinct pericyte subtype found abundantly in cultures derived from peripheral muscle. In this work, we show the translational significance of these peripherally derived neural‐like stem cells (NLSC) and their potential to migrate toward tumors and act as therapeutic carriers. We demonstrate that these NLSCs exhibit in vitro and in vivo GBM tropism. Furthermore, NLSCs did not promote angiogenesis or transform into tumor‐associated stromal cells, which are concerns raised when using other common stem cells, such as mesenchymal stem cells and induced neural stem cells, as therapeutic carriers. We also demonstrate the potential of NLSCs to express a prototype therapeutic, tumor necrosis factor α‐related apoptosis‐inducing ligand and kill GBM cells in vitro. These data demonstrate the therapeutic potential of our newly characterized NLSC against GBM. Stem Cells Translational Medicine2017;6:471–481
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Affiliation(s)
- Alexander Birbrair
- Ruth L. and David S. Gottesman Institute for Stem Cell and Regenerative Medicine, Albert Einstein College of Medicine, Bronx, New York, USA
- Department of Cell Biology, Albert Einstein College of Medicine, Bronx, New York, USA
- Department of Internal Medicine‐Gerontology, Wake Forest School of Medicine, Winston‐Salem, North Carolina, USA
- Department of Pathology, Federal University of Minas Gerais, Minas Gerais, Brazil
| | - Anirudh Sattiraju
- Department of Radiology, Wake Forest School of Medicine, Winston‐Salem, North Carolina, USA
- Brain Tumor Center of Excellence, Comprehensive Cancer Center of Wake Forest University, Winston‐Salem, North Carolina, USA
| | - Dongqin Zhu
- Department of Radiology, Wake Forest School of Medicine, Winston‐Salem, North Carolina, USA
- Department of Cancer Biology, Wake Forest School of Medicine, Winston‐Salem, North Carolina, USA
| | - Gilberto Zulato
- Department of Radiology, Wake Forest School of Medicine, Winston‐Salem, North Carolina, USA
| | - Izadora Batista
- Department of Radiology, Wake Forest School of Medicine, Winston‐Salem, North Carolina, USA
| | - Van T. Nguyen
- Department of Radiology, Wake Forest School of Medicine, Winston‐Salem, North Carolina, USA
| | - Maria Laura Messi
- Department of Internal Medicine‐Gerontology, Wake Forest School of Medicine, Winston‐Salem, North Carolina, USA
| | - Kiran Kumar Solingapuram Sai
- Brain Tumor Center of Excellence, Comprehensive Cancer Center of Wake Forest University, Winston‐Salem, North Carolina, USA
| | - Frank C. Marini
- Wake Forest Institute for Regenerative Medicine, Winston‐Salem, North Carolina, USA
| | - Osvaldo Delbono
- Department of Internal Medicine‐Gerontology, Wake Forest School of Medicine, Winston‐Salem, North Carolina, USA
| | - Akiva Mintz
- Department of Radiology, Wake Forest School of Medicine, Winston‐Salem, North Carolina, USA
- Brain Tumor Center of Excellence, Comprehensive Cancer Center of Wake Forest University, Winston‐Salem, North Carolina, USA
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Dunbar GL, Sandstrom MI, Rossignol J, Lescaudron L. Neurotrophic Enhancers as Therapy for Behavioral Deficits in Rodent Models of Huntington's Disease: Use of Gangliosides, Substituted Pyrimidines, and Mesenchymal Stem Cells. ACTA ACUST UNITED AC 2016; 5:63-79. [PMID: 16801683 DOI: 10.1177/1534582306289367] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
The interest in using neurotrophic factors as potential treatments for neurodegenerative disorders, such as Huntington's disease, has grown in the past decade. A major impediment for the clinical utility of neurotrophic factors is their inability to cross the blood-brain barrier in therapeutically significant amounts. Although several novel mechanisms for delivering exogenous neurotrophins to the brain have been developed, most of them involve invasive procedures or present significant risks. One approach to circumventing these problems is using therapeutic agents that can be administered systemically and have the ability to enhance the activity of neurotrophic factors. This review highlights the use of gangliosides, substituted pyrimidines, and mesenchymal stem cells as neurotrophic enhancers that have significant therapeutic potential while avoiding the pitfalls of delivering exogenous neurotrophic factors through the blood-brain barrier. The review focuses on the potential of these neurotrophic enhancers for treating the behavioral deficits in rodent models of Huntington's disease.
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31
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Bonfanti L. Adult Neurogenesis 50 Years Later: Limits and Opportunities in Mammals. Front Neurosci 2016; 10:44. [PMID: 26924960 PMCID: PMC4759267 DOI: 10.3389/fnins.2016.00044] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2016] [Accepted: 02/01/2016] [Indexed: 12/31/2022] Open
Affiliation(s)
- Luca Bonfanti
- Neuroscience Institute Cavalieri OttolenghiOrbassano, Italy; Department of Veterinary Sciences, University of TurinTorino, Italy
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32
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Isono M, Yoshida Y, Takahashi A, Oike T, Shibata A, Kubota Y, Kanai T, Ohno T, Nakano T. Carbon-ion beams effectively induce growth inhibition and apoptosis in human neural stem cells compared with glioblastoma A172 cells. JOURNAL OF RADIATION RESEARCH 2015; 56:856-61. [PMID: 26070322 PMCID: PMC4577002 DOI: 10.1093/jrr/rrv033] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/22/2014] [Accepted: 05/18/2015] [Indexed: 05/07/2023]
Abstract
Carbon-ion radiotherapy (CIRT) holds promise in the treatment of glioblastoma, an aggressive X-ray-resistant brain tumor. However, since glioblastoma cells show a highly invasive nature, carbon-ion (C-ion) irradiation of normal tissues surrounding the tumor is inevitable. Recent studies have revealed the existence of neural stem cells in the adult brain. Therefore, the damaging effect of C-ion beams on the neural stem cells has to be carefully considered in the treatment planning of CIRT. Here, we investigated the growth and death mode of human neural stem cells (hNSCs) and glioblastoma A172 cells after X-ray or C-ion beam irradiation. The X-ray dose resulting in a 50% growth rate (D(50)) was 0.8 Gy in hNSCs and 3.0 Gy in A172 cells, while the D(50) for C-ion beams was 0.4 Gy in hNSCs and 1.6 Gy in A172 cells; the relative biological effectiveness value of C-ion beams was 2.0 in hNSCs and 1.9 in A172 cells. Importantly, both X-rays and C-ion beams preferentially induced apoptosis, not necrosis, in hNSCs; however, radiation-induced apoptosis was less evident in A172 cells. The apoptosis-susceptible nature of the irradiated hNSCs was associated with prolonged upregulation of phosphorylated p53, whereas the apoptosis-resistant nature of A172 cells was associated with a high basal level of nuclear factor kappa B expression. Taken together, these data indicate that apoptosis is the major cell death pathway in hNSCs after irradiation. The high sensitivity of hNSCs to C-ion beams underscores the importance of careful target volume delineation in the treatment planning of CIRT for glioblastoma.
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Affiliation(s)
- Mayu Isono
- Gunma University Heavy Ion Medical Center, 3-39-22 Showa-machi, Maebashi, Gunma 371-8511, Japan
| | - Yukari Yoshida
- Gunma University Heavy Ion Medical Center, 3-39-22 Showa-machi, Maebashi, Gunma 371-8511, Japan
| | - Akihisa Takahashi
- Gunma University Heavy Ion Medical Center, 3-39-22 Showa-machi, Maebashi, Gunma 371-8511, Japan Advanced Scientific Research Leaders Development Unit, Gunma University, 3-39-22 Showa-machi, Maebashi, Gunma 371-8511, Japan
| | - Takahiro Oike
- Department of Radiation Oncology, Gunma University Graduate School of Medicine, 3-39-22 Showa-machi, Maebashi, Gunma 371-8511, Japan
| | - Atsushi Shibata
- Advanced Scientific Research Leaders Development Unit, Gunma University, 3-39-22 Showa-machi, Maebashi, Gunma 371-8511, Japan
| | - Yoshiki Kubota
- Gunma University Heavy Ion Medical Center, 3-39-22 Showa-machi, Maebashi, Gunma 371-8511, Japan
| | - Tatsuaki Kanai
- Gunma University Heavy Ion Medical Center, 3-39-22 Showa-machi, Maebashi, Gunma 371-8511, Japan
| | - Tatsuya Ohno
- Gunma University Heavy Ion Medical Center, 3-39-22 Showa-machi, Maebashi, Gunma 371-8511, Japan
| | - Takashi Nakano
- Gunma University Heavy Ion Medical Center, 3-39-22 Showa-machi, Maebashi, Gunma 371-8511, Japan Department of Radiation Oncology, Gunma University Graduate School of Medicine, 3-39-22 Showa-machi, Maebashi, Gunma 371-8511, Japan
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Mieloch AA, Suchorska WM. The concept of radiation-enhanced stem cell differentiation. Radiol Oncol 2015; 49:209-16. [PMID: 26401125 PMCID: PMC4577216 DOI: 10.1515/raon-2015-0022] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2015] [Accepted: 06/05/2015] [Indexed: 01/07/2023] Open
Abstract
BACKGROUND Efficient stem cell differentiation is considered to be the holy grail of regenerative medicine. Pursuing the most productive method of directed differentiation has been the subject of numerous studies, resulting in the development of many effective protocols. However, the necessity for further improvement in differentiation efficiency remains. This review contains a description of molecular processes underlying the response of stem cells to ionizing radiation, indicating its potential application in differentiation procedures. In the first part, the radiation-induced damage response in various types of stem cells is described. Second, the role of the p53 protein in embryonic and adult stem cells is highlighted. Last, the hypothesis on the mitochondrial involvement in stem cell development including its response to ionizing radiation is presented. CONCLUSIONS In summary, despite the many threats of ionizing radiation concerning genomic instability, subjecting cells to the appropriate dosage of ionizing radiation may become a useful method for enhancing directed differentiation in certain stem cell types.
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Affiliation(s)
- Adam A. Mieloch
- Radiobiology Laboratory, Department of Medical Physics, The Greater Poland Cancer Centre
| | - Wiktoria M. Suchorska
- Radiobiology Laboratory, Department of Medical Physics, The Greater Poland Cancer Centre
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34
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Buzhor E, Leshansky L, Blumenthal J, Barash H, Warshawsky D, Mazor Y, Shtrichman R. Cell-based therapy approaches: the hope for incurable diseases. Regen Med 2015; 9:649-72. [PMID: 25372080 DOI: 10.2217/rme.14.35] [Citation(s) in RCA: 115] [Impact Index Per Article: 12.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
Abstract
Cell therapies aim to repair the mechanisms underlying disease initiation and progression, achieved through trophic effect or by cell replacement. Multiple cell types can be utilized in such therapies, including stem, progenitor or primary cells. This review covers the current state of cell therapies designed for the prominent disorders, including cardiovascular, neurological (Parkinson's disease, amyotrophic lateral sclerosis, stroke, spinal cord injury), autoimmune (Type 1 diabetes, multiple sclerosis, Crohn's disease), ophthalmologic, renal, liver and skeletal (osteoarthritis) diseases. Various cell therapies have reached advanced clinical trial phases with potential marketing approvals in the near future, many of which are based on mesenchymal stem cells. Advances in pluripotent stem cell research hold great promise for regenerative medicine. The information presented in this review is based on the analysis of the cell therapy collection detailed in LifeMap Discovery(®) (LifeMap Sciences Inc., USA) the database of embryonic development, stem cell research and regenerative medicine.
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35
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Wang Q, Chuikov S, Taitano S, Wu Q, Rastogi A, Tuck SJ, Corey JM, Lundy SK, Mao-Draayer Y. Dimethyl Fumarate Protects Neural Stem/Progenitor Cells and Neurons from Oxidative Damage through Nrf2-ERK1/2 MAPK Pathway. Int J Mol Sci 2015; 16:13885-907. [PMID: 26090715 PMCID: PMC4490529 DOI: 10.3390/ijms160613885] [Citation(s) in RCA: 91] [Impact Index Per Article: 10.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2015] [Revised: 06/09/2015] [Accepted: 06/12/2015] [Indexed: 01/19/2023] Open
Abstract
Multiple sclerosis (MS) is the most common multifocal inflammatory demyelinating disease of the central nervous system (CNS). Due to the progressive neurodegenerative nature of MS, developing treatments that exhibit direct neuroprotective effects are needed. Tecfidera™ (BG-12) is an oral formulation of the fumaric acid esters (FAE), containing the active metabolite dimethyl fumarate (DMF). Although BG-12 showed remarkable efficacy in lowering relapse rates in clinical trials, its mechanism of action in MS is not yet well understood. In this study, we reported the potential neuroprotective effects of dimethyl fumarate (DMF) on mouse and rat neural stem/progenitor cells (NPCs) and neurons. We found that DMF increased the frequency of the multipotent neurospheres and the survival of NPCs following oxidative stress with hydrogen peroxide (H2O2) treatment. In addition, utilizing the reactive oxygen species (ROS) assay, we showed that DMF reduced ROS production induced by H2O2. DMF also decreased oxidative stress-induced apoptosis. Using motor neuron survival assay, DMF significantly promoted survival of motor neurons under oxidative stress. We further analyzed the expression of oxidative stress-induced genes in the NPC cultures and showed that DMF increased the expression of transcription factor nuclear factor-erythroid 2-related factor 2 (Nrf2) at both levels of RNA and protein. Furthermore, we demonstrated the involvement of Nrf2-ERK1/2 MAPK pathway in DMF-mediated neuroprotection. Finally, we utilized SuperArray gene screen technology to identify additional anti-oxidative stress genes (Gstp1, Sod2, Nqo1, Srxn1, Fth1). Our data suggests that analysis of anti-oxidative stress mechanisms may yield further insights into new targets for treatment of multiple sclerosis (MS).
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Affiliation(s)
- Qin Wang
- Department of Neurology, University of Michigan Medical School, 4015 Alfred Taubman Biomedical Sciences Research Building, 109 Zina Pitcher Place, Ann Arbor, MI 48109-2200, USA.
| | - Sergei Chuikov
- Department of Neurology, University of Michigan Medical School, 4015 Alfred Taubman Biomedical Sciences Research Building, 109 Zina Pitcher Place, Ann Arbor, MI 48109-2200, USA.
| | - Sophina Taitano
- Department of Internal Medicine, Division of Rheumatology, University of Michigan Medical School, Ann Arbor, MI 48109-2200, USA.
| | - Qi Wu
- Department of Neurology, University of Michigan Medical School, 4015 Alfred Taubman Biomedical Sciences Research Building, 109 Zina Pitcher Place, Ann Arbor, MI 48109-2200, USA.
| | - Arjun Rastogi
- Geriatrics Research, Education, and Clinical Center (GRECC), VA Ann Arbor Healthcare Center, Ann Arbor, MI 48109-2200, USA.
| | - Samuel J Tuck
- Geriatrics Research, Education, and Clinical Center (GRECC), VA Ann Arbor Healthcare Center, Ann Arbor, MI 48109-2200, USA.
- Department of Biomedical Engineering, University of Michigan, Ann Arbor, MI 48109-2200, USA.
| | - Joseph M Corey
- Department of Neurology, University of Michigan Medical School, 4015 Alfred Taubman Biomedical Sciences Research Building, 109 Zina Pitcher Place, Ann Arbor, MI 48109-2200, USA.
- Geriatrics Research, Education, and Clinical Center (GRECC), VA Ann Arbor Healthcare Center, Ann Arbor, MI 48109-2200, USA.
- Department of Biomedical Engineering, University of Michigan, Ann Arbor, MI 48109-2200, USA.
| | - Steven K Lundy
- Department of Internal Medicine, Division of Rheumatology, University of Michigan Medical School, Ann Arbor, MI 48109-2200, USA.
- Graduate Program in Immunology, Program in Biomedical Sciences, University of Michigan Medical School, Ann Arbor, MI 48109-2200, USA.
| | - Yang Mao-Draayer
- Department of Neurology, University of Michigan Medical School, 4015 Alfred Taubman Biomedical Sciences Research Building, 109 Zina Pitcher Place, Ann Arbor, MI 48109-2200, USA.
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36
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Castro-Garcia P, Díaz-Moreno M, Gil-Gas C, Fernández-Gómez FJ, Honrubia-Gómez P, Álvarez-Simón CB, Sánchez-Sánchez F, Cano JCC, Almeida F, Blanco V, Jordán J, Mira H, Ramírez-Castillejo C. Defects in subventricular zone pigmented epithelium-derived factor niche signaling in the senescence-accelerated mouse prone-8. FASEB J 2015; 29:1480-92. [PMID: 25636741 DOI: 10.1096/fj.13-244442] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/06/2014] [Accepted: 12/05/2014] [Indexed: 12/27/2022]
Abstract
We studied potential changes in the subventricular zone (SVZ) stem cell niche of the senescence-accelerated mouse prone-8 (SAM-P8) aging model. Bromodeoxyuridine (BrdU) assays with longtime survival revealed a lower number of label-retaining stem cells in the SAM-P8 SVZ compared with the SAM-Resistant 1 (SAM-R1) control strain. We also found that in SAM-P8 niche signaling is attenuated and the stem cell pool is less responsive to the self-renewal niche factor pigmented epithelium-derived factor (PEDF). Protein analysis demonstrated stable amounts of the PEDF ligand in the SAM-P8 SVZ niche; however, SAM-P8 stem cells present a significant expression decrease of patatin-like phospholipase domain containing 2, a receptor for PEDF (PNPLA2-PEDF) receptor, but not of laminin receptor (LR), a receptor for PEDF (LR-PEDF) receptor. We observed changes in self-renewal related genes (hairy and enhancer of split 1 (Hes1), hairy and enhancer of split 1 (Hes5), Sox2] and report that although these genes are down-regulated in SAM-P8, differentiation genes (Pax6) are up-regulated and neurogenesis is increased. Finally, sheltering mammalian telomere complexes might be also involved given a down-regulation of telomeric repeat binding factor 1 (Terf1) expression was observed in SAM-P8 at young age periods. Differences between these 2 models, SAM-P8 and SAM-R1 controls, have been previously detected at more advanced ages. We now describe alterations in the PEDF signaling pathway and stem cell self-renewal at a very young age, which could be involved in the premature senescence observed in the SAM-P8 model.
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Affiliation(s)
- Paola Castro-Garcia
- *Laboratorio de Células Madre, Centro Regional de Investigaciones Biomédicas, Universidad de Castilla-La Mancha, Albacete, Spain; Unidad Funcional de Investigación en Enfermedades Crónicas, Instituto de Salud Carlos III, Madrid, Spain; Grupo de Neurofarmacología, Departamento de Ciencias Médicas, Area de Genética, Facultad de Medicina de Albacete, and Instituto de Investigación en Discapacidades Neurológicas, Universidad de Castilla-La Mancha, Albacete, Spain; and Departamento Estadística, I. O. y Computación, Universidad de La Laguna, La Laguna, Canarias, Spain
| | - María Díaz-Moreno
- *Laboratorio de Células Madre, Centro Regional de Investigaciones Biomédicas, Universidad de Castilla-La Mancha, Albacete, Spain; Unidad Funcional de Investigación en Enfermedades Crónicas, Instituto de Salud Carlos III, Madrid, Spain; Grupo de Neurofarmacología, Departamento de Ciencias Médicas, Area de Genética, Facultad de Medicina de Albacete, and Instituto de Investigación en Discapacidades Neurológicas, Universidad de Castilla-La Mancha, Albacete, Spain; and Departamento Estadística, I. O. y Computación, Universidad de La Laguna, La Laguna, Canarias, Spain
| | - Carmen Gil-Gas
- *Laboratorio de Células Madre, Centro Regional de Investigaciones Biomédicas, Universidad de Castilla-La Mancha, Albacete, Spain; Unidad Funcional de Investigación en Enfermedades Crónicas, Instituto de Salud Carlos III, Madrid, Spain; Grupo de Neurofarmacología, Departamento de Ciencias Médicas, Area de Genética, Facultad de Medicina de Albacete, and Instituto de Investigación en Discapacidades Neurológicas, Universidad de Castilla-La Mancha, Albacete, Spain; and Departamento Estadística, I. O. y Computación, Universidad de La Laguna, La Laguna, Canarias, Spain
| | - Francisco J Fernández-Gómez
- *Laboratorio de Células Madre, Centro Regional de Investigaciones Biomédicas, Universidad de Castilla-La Mancha, Albacete, Spain; Unidad Funcional de Investigación en Enfermedades Crónicas, Instituto de Salud Carlos III, Madrid, Spain; Grupo de Neurofarmacología, Departamento de Ciencias Médicas, Area de Genética, Facultad de Medicina de Albacete, and Instituto de Investigación en Discapacidades Neurológicas, Universidad de Castilla-La Mancha, Albacete, Spain; and Departamento Estadística, I. O. y Computación, Universidad de La Laguna, La Laguna, Canarias, Spain
| | - Paloma Honrubia-Gómez
- *Laboratorio de Células Madre, Centro Regional de Investigaciones Biomédicas, Universidad de Castilla-La Mancha, Albacete, Spain; Unidad Funcional de Investigación en Enfermedades Crónicas, Instituto de Salud Carlos III, Madrid, Spain; Grupo de Neurofarmacología, Departamento de Ciencias Médicas, Area de Genética, Facultad de Medicina de Albacete, and Instituto de Investigación en Discapacidades Neurológicas, Universidad de Castilla-La Mancha, Albacete, Spain; and Departamento Estadística, I. O. y Computación, Universidad de La Laguna, La Laguna, Canarias, Spain
| | - Carmen Belén Álvarez-Simón
- *Laboratorio de Células Madre, Centro Regional de Investigaciones Biomédicas, Universidad de Castilla-La Mancha, Albacete, Spain; Unidad Funcional de Investigación en Enfermedades Crónicas, Instituto de Salud Carlos III, Madrid, Spain; Grupo de Neurofarmacología, Departamento de Ciencias Médicas, Area de Genética, Facultad de Medicina de Albacete, and Instituto de Investigación en Discapacidades Neurológicas, Universidad de Castilla-La Mancha, Albacete, Spain; and Departamento Estadística, I. O. y Computación, Universidad de La Laguna, La Laguna, Canarias, Spain
| | - Francisco Sánchez-Sánchez
- *Laboratorio de Células Madre, Centro Regional de Investigaciones Biomédicas, Universidad de Castilla-La Mancha, Albacete, Spain; Unidad Funcional de Investigación en Enfermedades Crónicas, Instituto de Salud Carlos III, Madrid, Spain; Grupo de Neurofarmacología, Departamento de Ciencias Médicas, Area de Genética, Facultad de Medicina de Albacete, and Instituto de Investigación en Discapacidades Neurológicas, Universidad de Castilla-La Mancha, Albacete, Spain; and Departamento Estadística, I. O. y Computación, Universidad de La Laguna, La Laguna, Canarias, Spain
| | - Juan Carlos Castillo Cano
- *Laboratorio de Células Madre, Centro Regional de Investigaciones Biomédicas, Universidad de Castilla-La Mancha, Albacete, Spain; Unidad Funcional de Investigación en Enfermedades Crónicas, Instituto de Salud Carlos III, Madrid, Spain; Grupo de Neurofarmacología, Departamento de Ciencias Médicas, Area de Genética, Facultad de Medicina de Albacete, and Instituto de Investigación en Discapacidades Neurológicas, Universidad de Castilla-La Mancha, Albacete, Spain; and Departamento Estadística, I. O. y Computación, Universidad de La Laguna, La Laguna, Canarias, Spain
| | - Francisco Almeida
- *Laboratorio de Células Madre, Centro Regional de Investigaciones Biomédicas, Universidad de Castilla-La Mancha, Albacete, Spain; Unidad Funcional de Investigación en Enfermedades Crónicas, Instituto de Salud Carlos III, Madrid, Spain; Grupo de Neurofarmacología, Departamento de Ciencias Médicas, Area de Genética, Facultad de Medicina de Albacete, and Instituto de Investigación en Discapacidades Neurológicas, Universidad de Castilla-La Mancha, Albacete, Spain; and Departamento Estadística, I. O. y Computación, Universidad de La Laguna, La Laguna, Canarias, Spain
| | - Vicente Blanco
- *Laboratorio de Células Madre, Centro Regional de Investigaciones Biomédicas, Universidad de Castilla-La Mancha, Albacete, Spain; Unidad Funcional de Investigación en Enfermedades Crónicas, Instituto de Salud Carlos III, Madrid, Spain; Grupo de Neurofarmacología, Departamento de Ciencias Médicas, Area de Genética, Facultad de Medicina de Albacete, and Instituto de Investigación en Discapacidades Neurológicas, Universidad de Castilla-La Mancha, Albacete, Spain; and Departamento Estadística, I. O. y Computación, Universidad de La Laguna, La Laguna, Canarias, Spain
| | - Joaquín Jordán
- *Laboratorio de Células Madre, Centro Regional de Investigaciones Biomédicas, Universidad de Castilla-La Mancha, Albacete, Spain; Unidad Funcional de Investigación en Enfermedades Crónicas, Instituto de Salud Carlos III, Madrid, Spain; Grupo de Neurofarmacología, Departamento de Ciencias Médicas, Area de Genética, Facultad de Medicina de Albacete, and Instituto de Investigación en Discapacidades Neurológicas, Universidad de Castilla-La Mancha, Albacete, Spain; and Departamento Estadística, I. O. y Computación, Universidad de La Laguna, La Laguna, Canarias, Spain
| | - Helena Mira
- *Laboratorio de Células Madre, Centro Regional de Investigaciones Biomédicas, Universidad de Castilla-La Mancha, Albacete, Spain; Unidad Funcional de Investigación en Enfermedades Crónicas, Instituto de Salud Carlos III, Madrid, Spain; Grupo de Neurofarmacología, Departamento de Ciencias Médicas, Area de Genética, Facultad de Medicina de Albacete, and Instituto de Investigación en Discapacidades Neurológicas, Universidad de Castilla-La Mancha, Albacete, Spain; and Departamento Estadística, I. O. y Computación, Universidad de La Laguna, La Laguna, Canarias, Spain
| | - Carmen Ramírez-Castillejo
- *Laboratorio de Células Madre, Centro Regional de Investigaciones Biomédicas, Universidad de Castilla-La Mancha, Albacete, Spain; Unidad Funcional de Investigación en Enfermedades Crónicas, Instituto de Salud Carlos III, Madrid, Spain; Grupo de Neurofarmacología, Departamento de Ciencias Médicas, Area de Genética, Facultad de Medicina de Albacete, and Instituto de Investigación en Discapacidades Neurológicas, Universidad de Castilla-La Mancha, Albacete, Spain; and Departamento Estadística, I. O. y Computación, Universidad de La Laguna, La Laguna, Canarias, Spain
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Ding J, He Z, Ruan J, Liu Y, Gong C, Sun S, Chen H. Influence of endogenous ciliary neurotrophic factor on neural differentiation of adult rat hippocampal progenitors. Neural Regen Res 2014; 8:301-12. [PMID: 25206670 PMCID: PMC4107532 DOI: 10.3969/j.issn.1673-5374.2013.04.002] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2012] [Accepted: 11/27/2012] [Indexed: 01/18/2023] Open
Abstract
Ciliary neurotrophic factor is the only known neurotrophic factor that can promote differentiation of hippocampal neural progenitor cells to glial cells and neurons in adult rats. This process is similar to spontaneous differentiation. Therefore, ciliary neurotrophic factor may be involved in spontaneous differentiation of neural stem cells. To verify this hypothesis, the present study isolated neural progenitor cells from adult male rats and cultured them in vitro. Results showed that when neural progenitor cells were cultured in the absence of mitogen fibroblast growth factor-2 or epidermal growth factor, they underwent spontaneous differentiation into neurons and glial cells. Western blot and immunocytochemical staining showed that exogenous ciliary neurotrophic factor strongly induced adult hippocampal progenitor cells to differentiate into neurons and glial cells. Moreover, passage 4 adult hippocampal progenitor cells expressed high levels of endogenous ciliary neurotrophic factor, and a neutralizing antibody against ciliary neurotrophic factor prevented the spontaneous neuronal and glial differentiation of adult hippocampal progenitor cells. These results suggest that the spontaneous differentiation of adult hippocampal progenitor cells is mediated partially by endogenous ciliary neurotrophic factor.
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Affiliation(s)
- Jun Ding
- Department of Neurology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, Hubei Province, China ; Mental Health Center, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, Hubei Province, China
| | - Zhili He
- Department of Neurology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, Hubei Province, China ; Mental Health Center, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, Hubei Province, China
| | - Juan Ruan
- Department of Neurology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, Hubei Province, China
| | - Ying Liu
- New York State Institute for Basic Research in Developmental Disabilities, Staten Island, NY, USA
| | - Chengxin Gong
- New York State Institute for Basic Research in Developmental Disabilities, Staten Island, NY, USA
| | - Shenggang Sun
- Department of Neurology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, Hubei Province, China
| | - Honghui Chen
- Mental Health Center, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, Hubei Province, China
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Garate Z, Davis BR, Quintana-Bustamante O, Segovia JC. New frontier in regenerative medicine: site-specific gene correction in patient-specific induced pluripotent stem cells. Hum Gene Ther 2014; 24:571-83. [PMID: 23675640 DOI: 10.1089/hum.2012.251] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022] Open
Abstract
Advances in cell and gene therapy are opening up new avenues for regenerative medicine. Because of their acquired pluripotency, human induced pluripotent stem cells (hiPSCs) are a promising source of autologous cells for regenerative medicine. They show unlimited self-renewal while retaining the ability, in principle, to differentiate into any cell type of the human body. Since Yamanaka and colleagues first reported the generation of hiPSCs in 2007, significant efforts have been made to understand the reprogramming process and to generate hiPSCs with potential for clinical use. On the other hand, the development of gene-editing platforms to increase homologous recombination efficiency, namely DNA nucleases (zinc finger nucleases, TAL effector nucleases, and meganucleases), is making the application of locus-specific gene therapy in human cells an achievable goal. The generation of patient-specific hiPSC, together with gene correction by homologous recombination, will potentially allow for their clinical application in the near future. In fact, reports have shown targeted gene correction through DNA-Nucleases in patient-specific hiPSCs. Various technologies have been described to reprogram patient cells and to correct these patient hiPSCs. However, no approach has been clearly more efficient and safer than the others. In addition, there are still significant challenges for the clinical application of these technologies, such as inefficient differentiation protocols, genetic instability resulting from the reprogramming process and hiPSC culture itself, the efficacy and specificity of the engineered DNA nucleases, and the overall homologous recombination efficiency. To summarize advances in the generation of gene corrected patient-specific hiPSCs, this review focuses on the available technological platforms, including their strengths and limitations regarding future therapeutic use of gene-corrected hiPSCs.
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Affiliation(s)
- Zita Garate
- Differentiation and Cytometry Unit, Hematopoiesis and Gene Therapy Division, Centro de Investigaciones Energéticas, Medioambientales y Tecnológicas (CIEMAT), 28040 Madrid, Spain
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Lojewski X, Hermann A, Wegner F, Araúzo-Bravo MJ, Hallmeyer-Elgner S, Kirsch M, Schwarz J, Schöler HR, Storch A. Human adult white matter progenitor cells are multipotent neuroprogenitors similar to adult hippocampal progenitors. Stem Cells Transl Med 2014; 3:458-69. [PMID: 24558163 DOI: 10.5966/sctm.2013-0117] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023] Open
Abstract
Adult neural progenitor cells (aNPC) are a potential autologous cell source for cell replacement in neurologic diseases or for cell-based gene therapy of neurometabolic diseases. Easy accessibility, long-term expandability, and detailed characterization of neural progenitor cell (NPC) properties are important requisites for their future translational/clinical applications. aNPC can be isolated from different regions of the adult human brain, including the accessible subcortical white matter (aNPCWM), but systematic studies comparing long-term expanded aNPCWM with aNPC from neurogenic brain regions are not available. Freshly isolated cells from subcortical white matter and hippocampus expressed oligodendrocyte progenitor cell markers such as A2B5, neuron-glial antigen 2 (NG2), and oligodendrocyte transcription factor 2 (OLIG2) in ∼20% of cells but no neural stem cell (NSC) markers such as CD133 (Prominin1), Nestin, SOX2, or PAX6. The epidermal growth factor receptor protein was expressed in 18% of aNPCWM and 7% of hippocampal aNPC (aNPCHIP), but only a small fraction of cells, 1 of 694 cells from white matter and 1 of 1,331 hippocampal cells, was able to generate neurospheres. Studies comparing subcortical aNPCWM with their hippocampal counterparts showed that both NPC types expressed mainly markers of glial origin such as NG2, A2B5, and OLIG2, and the NSC/NPC marker Nestin, but no pericyte markers. Both NPC types were able to produce neurons, astrocytes, and oligodendrocytes in amounts comparable to fetal NSC. Whole transcriptome analyses confirmed the strong similarity of aNPCWM to aNPCHIP. Our data show that aNPCWM are multipotent NPC with long-term expandability similar to NPC from hippocampus, making them a more easily accessible source for possible autologous NPC-based treatment strategies.
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Affiliation(s)
- Xenia Lojewski
- Division of Neurodegenerative Diseases, Department of Neurology, and Department of Neurosurgery, Dresden University of Technology, Dresden, Germany; German Center for Neurodegenerative Diseases Dresden, Dresden, Germany; Department of Neurology, Hannover Medical School, Hannover, Germany; Department of Cell and Developmental Biology, Max Planck Institute for Molecular Biomedicine, Münster, Germany; Department of Neurology, Technical University of Munich, Munich, Germany; Division of Biology, California Institute of Technology, Pasadena, California, USA; Center for Regenerative Therapies Dresden, Dresden, Germany
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Efficient Generation of Neural Stem Cell-Like Cells from Rat Adipose Derived Stem Cells After Lentiviral Transduction with Green Fluorescent Protein. Mol Neurobiol 2014; 50:647-54. [DOI: 10.1007/s12035-014-8638-4] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2013] [Accepted: 01/02/2014] [Indexed: 12/29/2022]
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Lojewski X, Staropoli JF, Biswas-Legrand S, Simas AM, Haliw L, Selig MK, Coppel SH, Goss KA, Petcherski A, Chandrachud U, Sheridan SD, Lucente D, Sims KB, Gusella JF, Sondhi D, Crystal RG, Reinhardt P, Sterneckert J, Schöler H, Haggarty SJ, Storch A, Hermann A, Cotman SL. Human iPSC models of neuronal ceroid lipofuscinosis capture distinct effects of TPP1 and CLN3 mutations on the endocytic pathway. Hum Mol Genet 2013; 23:2005-22. [PMID: 24271013 DOI: 10.1093/hmg/ddt596] [Citation(s) in RCA: 108] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023] Open
Abstract
Neuronal ceroid lipofuscinosis (NCL) comprises ∼13 genetically distinct lysosomal disorders primarily affecting the central nervous system. Here we report successful reprograming of patient fibroblasts into induced pluripotent stem cells (iPSCs) for the two most common NCL subtypes: classic late-infantile NCL, caused by TPP1(CLN2) mutation, and juvenile NCL, caused by CLN3 mutation. CLN2/TPP1- and CLN3-iPSCs displayed overlapping but distinct biochemical and morphological abnormalities within the endosomal-lysosomal system. In neuronal derivatives, further abnormalities were observed in mitochondria, Golgi and endoplasmic reticulum. While lysosomal storage was undetectable in iPSCs, progressive disease subtype-specific storage material was evident upon neural differentiation and was rescued by reintroducing the non-mutated NCL proteins. In proof-of-concept studies, we further documented differential effects of potential small molecule TPP1 activity inducers. Fenofibrate and gemfibrozil, previously reported to induce TPP1 activity in control cells, failed to increase TPP1 activity in patient iPSC-derived neural progenitor cells. Conversely, nonsense suppression by PTC124 resulted in both an increase of TPP1 activity and attenuation of neuropathology in patient iPSC-derived neural progenitor cells. This study therefore documents the high value of this powerful new set of tools for improved drug screening and for investigating early mechanisms driving NCL pathogenesis.
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Affiliation(s)
- Xenia Lojewski
- Center for Human Genetic Research, Massachusetts General Hospital, 185 Cambridge Street, Boston, MA 02114, USA
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Development and application of neural stem cells for treating various human neurological diseases in animal models. Lab Anim Res 2013; 29:131-7. [PMID: 24106507 PMCID: PMC3791346 DOI: 10.5625/lar.2013.29.3.131] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2013] [Revised: 07/08/2013] [Accepted: 07/12/2013] [Indexed: 12/12/2022] Open
Abstract
Stem cells derived from adult tissues or the inner cell mass (ICM) of embryos in the mammalian blastocyst (BL) stage are capable of self-renewal and have remarkable potential for undergoing lineage-specific differentiation under in vitro culturing conditions. In particular, neural stem cells (NSCs) that self-renew and differentiate into major cell types of the brain exist in the developing and adult central nervous system (CNS). The exact function and distribution of NSCs has been assessed, and they represent an interesting population that includes astrocytes, oligodendrocytes, and neurons. Many researchers have demonstrated functional recovery in animal models of various neurological diseases such as stroke, Parkinson's disease (PD), brain tumors, and metastatic tumors. The safety and efficacy of stem cell-based therapies (SCTs) are also being evaluated in humans. The therapeutic efficacy of NSCs has been shown in the brain disorder-induced animal models, and animal models may be well established to perform the test before clinical stage. Taken together, data from the literature have indicated that therapeutic NSCs may be useful for selectively treating diverse types of human brain diseases without incurring adverse effects.
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Klose J, Schmidt NO, Melms A, Dohi M, Miyazaki JI, Bischof F, Greve B. Suppression of experimental autoimmune encephalomyelitis by interleukin-10 transduced neural stem/progenitor cells. J Neuroinflammation 2013; 10:117. [PMID: 24053338 PMCID: PMC3852052 DOI: 10.1186/1742-2094-10-117] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2013] [Accepted: 09/08/2013] [Indexed: 02/07/2023] Open
Abstract
Neural stem/progenitor cells (NSPCs) have the ability to migrate into the central nervous system (CNS) to replace damaged cells. In inflammatory CNS disease, cytokine transduced neural stem cells may be used as vehicles to specifically reduce inflammation and promote cell replacement. In this study, we used NSPCs overexpressing IL-10, an immunomodulatory cytokine, in an animal model for CNS inflammation and multiple sclerosis (MS). Intravenous injection of IL-10 transduced neural stem/progenitor cells (NSPCIL-10) suppressed myelin oligodendrocyte glycoprotein aa 35–55 (MOG35-55)- induced experimental autoimmune encephalomyelitis (EAE) and, following intravenous injection, NSPCIL-10 migrated to peripheral lymphoid organs and into the CNS. NSPCIL-10 suppressed antigen-specific proliferation and proinflammatory cytokine production of lymph node cells obtained from MOG35-55 peptide immunized mice. In this model, IL-10 producing NSPCs act via a peripheral immunosuppressive effect to attenuate EAE.
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Affiliation(s)
- Juliane Klose
- Center of Neurology, Hertie-Institute for Clinical Brain Research, University of Tübingen, Otfried-Müller-Strasse 27, 72076 Tübingen, Germany.
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Leong C, Zhai D, Kim B, Yun SW, Chang YT. Neural stem cell isolation from the whole mouse brain using the novel FABP7-binding fluorescent dye, CDr3. Stem Cell Res 2013; 11:1314-22. [PMID: 24090932 DOI: 10.1016/j.scr.2013.09.002] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/14/2013] [Revised: 08/17/2013] [Accepted: 09/10/2013] [Indexed: 01/08/2023] Open
Abstract
Methods for the isolation of live neural stem cells from the brain are limited due to the lack of well-defined cell surface markers and tools to detect intracellular markers. To date most methods depend on the labeling of extracellular markers using antibodies, with intracellular markers remaining inaccessible in live cells. Using a novel intracellular protein FABP7 (Fatty Acid Binding Protein-7) selective fluorescent chemical probe CDr3, we have successfully isolated high FABP7 expressing cells from the embryonic and adult mouse brains. These cells are capable of forming neurospheres in culture, express neural stem cell marker genes and differentiate into neurons, astrocytes and oligodendrocytes. Characterization of cells sorted with Aldefluor or antibodies against CD133 or SSEA-1 showed that the cells isolated by CDr3 exhibit a phenotype distinct from the cells sorted with conventional methods. FABP7 labeling with CDr3 represents a novel method for rapid isolation of neural stem cells based on the expression of a single intracellular marker.
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Affiliation(s)
- Cheryl Leong
- NUS Graduate School for Integrative Sciences and Engineering, National University of Singapore, Republic of Singapore; Laboratory of Bioimaging Probe Development, Singapore Bioimaging Consortium, Agency for Science, Technology and Research, Republic of Singapore
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Bouchard R, Chong T, Pugazhenthi S. Laser capture microdissection of neurons from differentiated human neuroprogenitor cells in culture. J Vis Exp 2013:e50487. [PMID: 24084642 DOI: 10.3791/50487] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023] Open
Abstract
Neuroprogenitor cells (NPCs) isolated from the human fetal brain were expanded under proliferative conditions in the presence of epidermal growth factor (EGF) and fibroblast growth factor (FGF) to provide an abundant supply of cells. NPCs were differentiated in the presence of a new combination of nerve growth factor (NGF), brain-derived neurotrophic factor (BDNF), dibutyryl cAMP (DBC) and retinoic acid on dishes coated with poly-L-lysine and mouse laminin to obtain neuron-rich cultures. NPCs were also differentiated in the absence of neurotrophins, DBC and retinoic acid and in the presence of ciliary neurotrophic factor (CNTF) to yield astrocyte-rich cultures. Differentiated NPCs were characterized by immunofluorescence staining for a panel of neuronal markers including NeuN, synapsin, acetylcholinesterase, synaptophysin and GAP43. Glial fibrillary acidic protein (GFAP) and STAT3, astrocyte markers, were detected in 10-15% of differentiated NPCs. To facilitate cell-type specific molecular characterization, laser capture microdissection was performed to isolate neurons cultured on polyethylene naphthalate (PEN) membrane slides. The methods described in this study provide valuable tools to advance our understanding of the molecular mechanism of neurodegeneration.
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Affiliation(s)
- Ron Bouchard
- Section of Endocrinology, Denver VA Medical Center
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Induction of an inflammatory loop by interleukin-1β and tumor necrosis factor-α involves NF-kB and STAT-1 in differentiated human neuroprogenitor cells. PLoS One 2013; 8:e69585. [PMID: 23922745 PMCID: PMC3726669 DOI: 10.1371/journal.pone.0069585] [Citation(s) in RCA: 65] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2013] [Accepted: 06/12/2013] [Indexed: 12/04/2022] Open
Abstract
Proinflammatory cytokines secreted from microglia are known to induce a secondary immune response in astrocytes leading to an inflammatory loop. Cytokines also interfere with neurogenesis during aging and in neurodegenerative diseases. The present study examined the mechanism of induction of inflammatory mediators at the transcriptional level in human differentiated neuroprogenitor cells (NPCs). Interleukin-1β (IL-1β) and tumor necrosis factor-α (TNF-α) induced the expression of cytokines and chemokines in differentiated human NPCs as shown by an immune pathway-specific array. Network motif (NM) analysis of these genes revealed 118 three-node NMs, suggesting complex interactions between inflammatory mediators and transcription factors. Immunofluorescent staining showed increases in the levels of IL-8 and CXCL10 proteins in neurons and glial cells. Findings from Taqman low density array suggested the synergistic actions of IL-1β and TNF-α in the induction of a majority of inflammatory genes by a mechanism involving NF-kB and STAT-1. Nuclear localization of these transcription factors in differentiated NPCs was observed following exposure to IL-1α and TNF-α. Further studies on CXCL10, a chemokine known to be elevated in the Alzheimer's brain, showed that TNF-α is a stronger inducer of CXCL10 promoter when compared to IL-1β. The synergy between these cytokines was lost when ISRE or kB elements in CXCL10 promoter were mutated. Our findings suggest that the activation of inflammatory pathways in neurons and astrocytes through transcription factors including NF-kB and STAT-1 play important roles in neuroglial interactions and in sustaining the vicious cycle of inflammatory response.
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Sox2 protects neural stem cells from apoptosis via up-regulating survivin expression. Biochem J 2013; 450:459-68. [PMID: 23301561 DOI: 10.1042/bj20120924] [Citation(s) in RCA: 57] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
The transcription factor Sox2 [SRY (sex-determining region Y)-box 2] is essential for the regulation of self-renewal and homoeostasis of NSCs (neural stem cells) during brain development. However, the downstream targets of Sox2 and its underlying molecular mechanism are largely unknown. In the present study, we found that Sox2 directly up-regulates the expression of survivin, which inhibits the mitochondria-dependent apoptotic pathway in NSCs. Although overexpression of Sox2 elevates survivin expression, knockdown of Sox2 results in a decrease in survivin expression, thereby initiating the mitochondria-dependent apoptosis related to caspase 9 activation. Furthermore, cell apoptosis owing to knockdown of Sox2 can be rescued by ectopically expressing survivin in NSCs as well as in the mouse brain, as demonstrated by an in utero-injection approach. In short, we have found a novel Sox2/survivin pathway that regulates NSC survival and homoeostasis, thus revealing a new mechanism of brain development, neurological degeneration and such aging-related disorders.
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Loughran JH, Elmore JB, Waqar M, Chugh AR, Bolli R. Cardiac stem cells in patients with ischemic cardiomyopathy: discovery, translation, and clinical investigation. Curr Atheroscler Rep 2013; 14:491-503. [PMID: 22847771 DOI: 10.1007/s11883-012-0273-9] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
The increasing prevalence of heart failure, in the US and worldwide, poses a significant burden to patients, practitioners, and healthcare systems. Hence, there is a pressing need for alternative therapies to enhance the current treatment armamentarium. Accordingly, when considering heart failure of ischemic etiology, an intervention designed to regenerate the attending loss of myocardium could potentially result in improved cardiac function, functional status, and quality of life. Significant strides have been made by investigators in the study of stem cell therapy for cardiac repair; recently with cardiac-derived progenitor cells. These cells include cardiospheres, cardiosphere-derived cells, and c-kit positive cardiac stem cells. Herein, a review of both preclinical studies and phase I clinical trials of these cell types is presented. A detailed account of in vitro characterization, in vivo bioactivity, and safety and efficacy in humans is outlined. Thus far, encouraging results have been realized, although larger studies have yet to be undertaken.
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Affiliation(s)
- John H Loughran
- Division of Cardiovascular Medicine, University of Louisville, 550 S Jackson Street, ACB Bldg, 3rd Floor, Louisville, KY 40202, USA.
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Dibutyryl cyclic AMP inhibits the progression of experimental autoimmune encephalomyelitis and potentiates recruitment of endogenous neural stem cells. J Mol Neurosci 2013; 51:298-306. [PMID: 23335001 DOI: 10.1007/s12031-013-9959-x] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/2012] [Accepted: 01/10/2013] [Indexed: 12/15/2022]
Abstract
Multiple sclerosis is a chronic inflammatory demyelinating disease of the central nervous system. Cyclic AMP and its analogs enhance regeneration of adult mammalian central nervous system (CNS). Endogenous neural stem cells (NSCs) play a pivotal role in CNS regeneration, producing new neuron and glial cells. Here, we examined the effect of dibutyryl cyclic AMP (dbcAMP) on experimental autoimmune encephalomyelitis (EAE) symptoms, endogenous remyelination, and recruitment of NSCs. EAE was induced by immunizing mice using myelin oligodendrocyte glycoprotein peptide and pertussis toxin. Proliferative cells within CNS were labeled using repetitive systemic injections of 5-bromo-2-deoxyuridine (BrdU) before EAE induction. Myelin staining was performed using Luxol fast blue. The number of nestin(+) and BrdU(+) cells in subventricular zone (SVZ) and olfactory bulb (OB) was evaluated using immunohistochemistry. dbcAMP suppressed EAE progression and decreased the extent of demyelinated plaques in the lumbar spinal cord. EAE induction reduced the number of proliferative cells in SVZ and increased their population in OB. EAE also increased the number of nestin(+) cells in OB. We also found that dbcAMP increased the recruitment of NSCs into the OB and brain parenchyma of EAE mice. Our results suggest dbcAMP as a potential therapy for inducing myelin repair in the context of demyelinating diseases like multiple sclerosis. Its positive effect seems to be mediated, at least partially, by endogenous neural stem cells and their increased recruitment.
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Fibroblast growth factor-2 counteracts the effect of ciliary neurotrophic factor on spontaneous differentiation in adult hippocampal progenitor cells. JOURNAL OF HUAZHONG UNIVERSITY OF SCIENCE AND TECHNOLOGY. MEDICAL SCIENCES = HUA ZHONG KE JI DA XUE XUE BAO. YI XUE YING DE WEN BAN = HUAZHONG KEJI DAXUE XUEBAO. YIXUE YINGDEWEN BAN 2012; 32:867-871. [PMID: 23271288 DOI: 10.1007/s11596-012-1049-8] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/15/2012] [Indexed: 12/19/2022]
Abstract
Neural stem/progenitor cells (NSCs) can spontaneously differentiate into neurons and glial cells in the absence of mitogen fibroblast growth factor-2 (FGF-2) or epidermal growth factor (EGF) in medium and the spontaneous differentiation of NSCs is mediated partially by endogenous ciliary neurotrophic factor (CNTF). This study examined the relationship of FGF-2 and CNTF in the spontaneous differentiation of adult hippocampal progenitor cells (AHPs). AHPs were cultured in the medium containing different concentration of FGF-2 (1-100 ng/mL). Western blotting and immunofluorescence staining were applied to detect the expression of the astrocytic marker GFAP, the neuronal marker Tuj1, the oligodendrocytic marker CNPase and, Nestin, the marker of AHPs. The expression of endogenous CNTF in AHPs at early (passage 4) and late stage (passage 22) was also measured by Western blotting. The results showed that FGF-2 increased the expression of Nestin, dramatically inhibited the expression of GFAP and Tuj1 and slightly suppressed the expression of CNPase. FGF-2 down-regulated the expression of endogenous CNTF in AHPs at both early (passage 4) and late stage (passage 22). These results suggested that FGF-2 could inhibit the spontaneous differentiation of cultured AHPs by negatively regulating the expression of endogenous CNTF in AHPs.
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