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Gyimesi M, Oikari LE, Yu C, Sutherland HG, Nyholt DR, Griffiths LR, Van Wijnen AJ, Okolicsanyi RK, Haupt LM. CpG methylation changes in human mesenchymal and neural stem cells in response to in vitro niche modifications. Biochimie 2024; 223:147-157. [PMID: 38640996 DOI: 10.1016/j.biochi.2024.04.007] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/29/2024] [Revised: 04/15/2024] [Accepted: 04/16/2024] [Indexed: 04/21/2024]
Abstract
Stem cell therapies hold promise in addressing the burden of neurodegenerative diseases with human embryonic neural stem cells (hNSC-H9s) and bone marrow-derived human mesenchymal stem cells (hMSCs) as viable candidates. The induction of hMSC neurospheres (hMSC-IN) generate a more lineage-restricted common neural progenitor-like cell population, potentially tunable by heparan sulfate proteoglycans (HSPGs). We examined CpG (5 mC) site methylation patterns using Illumina Infinium 850 K EPIC arrays in hNSC-H9, hMSCs and hMSC-IN cultures with HSPG agonist heparin at early and late phases of growth. We identified key regulatory CpG sites in syndecans (SDC2; SDC4) that potentially regulate gene expression in monolayers. Unique hMSC-IN hypomethylation in glypicans (GPC3; GPC4) underscore their significance in neural lineages with Sulfatase 1 and 2 (SULF1 &2) CpG methylation changes potentially driving the neurogenic shift. hMSC-INs methylation levels at SULF1 CpG sites and SULF2:cg25401628 were more closely aligned with hNSC-H9 cells than with hMSCs. We further suggest SOX2 regulation governed by lncSOX2-Overall Transcript (lncSOX2-OT) methylation changes with preferential activation of ENO2 over other neuronal markers within hMSC-INs. Our findings illuminate epigenetic dynamics governing neural lineage commitment of hMSC-INs offering insights for targeted mechanisms for regenerative medicine and therapeutic strategies.
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Affiliation(s)
- Martina Gyimesi
- Stem Cell and Neurogenesis Group, Genomics Research Centre, Centre for Genomics and Personalised Health, School of Biomedical Sciences, Queensland University of Technology, Australia
| | - Lotta E Oikari
- Stem Cell and Neurogenesis Group, Genomics Research Centre, Centre for Genomics and Personalised Health, School of Biomedical Sciences, Queensland University of Technology, Australia
| | - Chieh Yu
- Stem Cell and Neurogenesis Group, Genomics Research Centre, Centre for Genomics and Personalised Health, School of Biomedical Sciences, Queensland University of Technology, Australia
| | - Heidi G Sutherland
- Stem Cell and Neurogenesis Group, Genomics Research Centre, Centre for Genomics and Personalised Health, School of Biomedical Sciences, Queensland University of Technology, Australia
| | - Dale R Nyholt
- Statistical and Genomic Epidemiology Laboratory, School of Biomedical Sciences, Faculty of Health and Centre for Genomics and Personalised Health, Queensland University of Technology, Brisbane, QLD, Australia
| | - Lyn R Griffiths
- Stem Cell and Neurogenesis Group, Genomics Research Centre, Centre for Genomics and Personalised Health, School of Biomedical Sciences, Queensland University of Technology, Australia
| | | | - Rachel K Okolicsanyi
- Stem Cell and Neurogenesis Group, Genomics Research Centre, Centre for Genomics and Personalised Health, School of Biomedical Sciences, Queensland University of Technology, Australia; Max Planck Queensland Centre for the Materials Science of Extracellular Matrices, Australia
| | - Larisa M Haupt
- Stem Cell and Neurogenesis Group, Genomics Research Centre, Centre for Genomics and Personalised Health, School of Biomedical Sciences, Queensland University of Technology, Australia; ARC Training Centre for Cell and Tissue Engineering Technologies, Queensland University of Technology (QUT), Australia; Max Planck Queensland Centre for the Materials Science of Extracellular Matrices, Australia; Centre for Biomedical Technologies, Queensland University of Technology (QUT), 60 Musk Ave., Kelvin Grove, QLD 4059, Australia.
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Juvenal G, Meinerz C, Ayupe AC, Campos HC, Reis EM, Longo BM, Pillat MM, Ulrich H. Bradykinin promotes immune responses in differentiated embryonic neurospheres carrying APP swe and PS1 dE9 mutations. Cell Biosci 2024; 14:82. [PMID: 38890712 PMCID: PMC11184896 DOI: 10.1186/s13578-024-01251-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2024] [Accepted: 05/24/2024] [Indexed: 06/20/2024] Open
Abstract
BACKGROUND Neural progenitor cells (NPCs) can be cultivated from developing brains, reproducing many of the processes that occur during neural development. They can be isolated from a variety of animal models, such as transgenic mice carrying mutations in amyloid precursor protein (APP) and presenilin 1 and 2 (PSEN 1 and 2), characteristic of familial Alzheimer's disease (fAD). Modulating the development of these cells with inflammation-related peptides, such as bradykinin (BK) and its antagonist HOE-140, enables the understanding of the impact of such molecules in a relevant AD model. RESULTS We performed a global gene expression analysis on transgenic neurospheres treated with BK and HOE-140. To validate the microarray data, quantitative real-time reverse-transcription polymerase chain reaction (RT-PCR) was performed on 8 important genes related to the immune response in AD such as CCL12, CCL5, CCL3, C3, CX3CR1, TLR2 and TNF alpha and Iba-1. Furthermore, comparative analysis of the transcriptional profiles was performed between treatments, including gene ontology and reactome enrichment, construction and analysis of protein-protein interaction networks and, finally, comparison of our data with human dataset from AD patients. The treatments affected the expression levels of genes mainly related to microglia-mediated neuroinflammatory responses, with BK promoting an increase in the expression of genes that enrich processes, biological pathways, and cellular components related to immune dysfunction, neurodegeneration and cell cycle. B2 receptor inhibition by HOE-140 resulted in the reduction of AD-related anomalies caused in this system. CONCLUSIONS BK is an important immunomodulatory agent and enhances the immunological changes identified in transgenic neurospheres carrying the genetic load of AD. Bradykinin treatments modulate the expression rates of genes related to microglia-mediated neuroinflammation. Inhibiting bradykinin activity in Alzheimer's disease may slow disease progression.
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Affiliation(s)
- Guilherme Juvenal
- Department of Biochemistry, Institute of Chemistry, University of São Paulo, Av. Prof. Lineu Prestes 748, São Paulo, 05508-900, Brazil
| | - Carine Meinerz
- Department of Microbiology and Parasitology, Health Sciences Center, Federal University of Santa Maria, Santa Maria-RS, Brazil
| | - Ana Carolina Ayupe
- Department of Biochemistry, Institute of Chemistry, University of São Paulo, Av. Prof. Lineu Prestes 748, São Paulo, 05508-900, Brazil
| | | | - Eduardo Moraes Reis
- Department of Biochemistry, Institute of Chemistry, University of São Paulo, Av. Prof. Lineu Prestes 748, São Paulo, 05508-900, Brazil
| | | | - Micheli Mainardi Pillat
- Department of Microbiology and Parasitology, Health Sciences Center, Federal University of Santa Maria, Santa Maria-RS, Brazil.
| | - Henning Ulrich
- Department of Biochemistry, Institute of Chemistry, University of São Paulo, Av. Prof. Lineu Prestes 748, São Paulo, 05508-900, Brazil.
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Deepti A, Chackochan BK, Sadanandan S, Menon AS, Mohandas K, Vengellur A, Sivan U, Chakrapani PSB. An easy and cost-effective method for the isolation and culturing of neural stem/progenitor cells from the subventricular (SVZ) and dentate gyrus (DG) of adult mouse brain. J Neurosci Methods 2024; 404:110060. [PMID: 38244848 DOI: 10.1016/j.jneumeth.2024.110060] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2023] [Revised: 12/31/2023] [Accepted: 01/16/2024] [Indexed: 01/22/2024]
Abstract
BACKGROUND Isolation of adult Neural Stem/Progenitor Cells (NSPCs) from their neurogenic niches, is a prerequisite for studies involving culturing of NSPCs as neurospheres or attached monolayers in vitro. The currently available protocols involve the use of multiple animals and expensive reagents to establish the NSPCs culture. NEW METHOD This unit describes a method to isolate and culture NSPCs from the two neurogenic niches in the mouse brain, the Subventricular Zone (SVZ) and Dentate gyrus (DG)/subgranular zone (SGZ), in an easy and cost-effective manner. RESULTS NSPCs from SVZ and DG regions of adult mouse brains were isolated and cultured up to passage 15 without losing their stem/progenitor characteristics. These NSPCs could be differentiated into neurons, astrocytes, and oligodendrocytes, revealing its trilineage potential. COMPARISON WITH EXISTING METHODS This protocol eliminates the need for multiple animals as well as the use of many expensive reagents mentioned in previous protocols, adding to the cost-effectiveness of experiments. In addition, we have effectively reduced the number of steps involved in isolation and propagation, thereby minimizing the chances of contamination. CONCLUSION Our simplified protocol for the isolation and culturing of adult NSPCs from the SVZ and DG demonstrates a cost-effective and efficient alternative to existing methods, reducing the need for sacrificing many animals and the usage of expensive reagents. This method permits the long-term maintenance of NSPCs' stem/progenitor characteristics and their effective differentiation into the major types of cells in the brain, making it a valuable resource for researchers in the field. BASIC PROTOCOL Isolation and Culturing of Neural Stem/Progenitor cells from the Sub ventricular Zone and the Dentate Gyrus of the adult mouse brain. SUPPORT PROTOCOL 1: Cryopreservation, and revival of frozen NSPCs. SUPPORT PROTOCOL 2: Preparation of adherent monolayer cultures of neural stem/progenitor cells for the differentiation into multiple lineages SUPPORT PROTOCOL 3: Differentiation of NSPCs to neuronal and glial lineages SUPPORT PROTOCOL 4: Characterization of differentiated cells by immunocytochemistry.
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Affiliation(s)
- Ayswaria Deepti
- Centre for Neuroscience, Cochin University of Science and Technology, Cochin, India; Department of Biotechnology, Cochin University of Science and Technology, Cochin, India
| | - Bins Kathanadan Chackochan
- Centre for Neuroscience, Cochin University of Science and Technology, Cochin, India; Department of Biotechnology, Cochin University of Science and Technology, Cochin, India
| | - Sreelakshmi Sadanandan
- Centre for Neuroscience, Cochin University of Science and Technology, Cochin, India; Department of Biotechnology, Cochin University of Science and Technology, Cochin, India
| | - Anagha Sunilkumar Menon
- Centre for Neuroscience, Cochin University of Science and Technology, Cochin, India; Department of Biotechnology, Cochin University of Science and Technology, Cochin, India
| | - Krishnakumar Mohandas
- Centre for Neuroscience, Cochin University of Science and Technology, Cochin, India; Department of Biotechnology, Cochin University of Science and Technology, Cochin, India
| | - Ajith Vengellur
- Centre for Neuroscience, Cochin University of Science and Technology, Cochin, India; Department of Biotechnology, Cochin University of Science and Technology, Cochin, India
| | - Unnikrishnan Sivan
- Centre for Neuroscience, Cochin University of Science and Technology, Cochin, India; Department of Biotechnology, Cochin University of Science and Technology, Cochin, India; FFE, Kerala University of Fisheries and Ocean Studies, Kochi, India
| | - Pulikkaparambil Sasidharan Baby Chakrapani
- Centre for Neuroscience, Cochin University of Science and Technology, Cochin, India; Department of Biotechnology, Cochin University of Science and Technology, Cochin, India; Centre of Excellence in Neurodegeneration and Brain Health, Cochin, India.
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Li R, Li Y, Zuo H, Pei G, Huang S, Hou Y. Alzheimer's Amyloid-β Accelerates Cell Senescence and Suppresses SIRT1 in Human Neural Stem Cells. Biomolecules 2024; 14:189. [PMID: 38397428 PMCID: PMC10886734 DOI: 10.3390/biom14020189] [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: 11/30/2023] [Revised: 12/28/2023] [Accepted: 02/02/2024] [Indexed: 02/25/2024] Open
Abstract
As a lifelong source of neurons, neural stem cells (NSCs) serve multiple crucial functions in the brain. The senescence of NSCs may be associated with the onset and progression of Alzheimer's disease (AD). Our study reveals a noteworthy finding, indicating that the AD-associated pathogenic protein amyloid-β (Aβ) substantially enhances senescence-related characteristics of human NSCs. These characteristics encompass the enhanced expression of p16 and p21, the upregulation of genes associated with the senescence-associated secretory phenotype (SASP), increased SA-β-gal activity, and the activation of the DNA damage response. Further studies revealed that Aβ treatment significantly downregulates the SIRT1 protein which plays a crucial role in regulating the aging process and decreases downstream PGC-1α and FOXO3. Subsequently, we found that SIRT1 overexpression significantly alleviates a range of Aβ-induced senescent markers in human NSCs. Taken together, our results uncover that Aβ accelerates cellular senescence in human NSCs, making SIRT1 a highly promising therapeutic target for senescent NSCs which may contribute to age-related neurodegenerative diseases, including AD.
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Affiliation(s)
- Rongyao Li
- Institute for Regenerative Medicine, Shanghai East Hospital, Shanghai Key Laboratory of Signaling and Disease Research, Frontier Science Center for Stem Cell Research, School of Life Sciences and Technology, Tongji University, Shanghai 200092, China; (R.L.); (Y.L.); (H.Z.)
- State Key Laboratory of Cell Biology, CAS Center for Excellence in Molecular Cell Science, Shanghai Institute of Biochemistry and Cell Biology, Chinese Academy of Sciences, University of Chinese Academy of Sciences, Shanghai 200031, China
| | - Yi Li
- Institute for Regenerative Medicine, Shanghai East Hospital, Shanghai Key Laboratory of Signaling and Disease Research, Frontier Science Center for Stem Cell Research, School of Life Sciences and Technology, Tongji University, Shanghai 200092, China; (R.L.); (Y.L.); (H.Z.)
- State Key Laboratory of Cell Biology, CAS Center for Excellence in Molecular Cell Science, Shanghai Institute of Biochemistry and Cell Biology, Chinese Academy of Sciences, University of Chinese Academy of Sciences, Shanghai 200031, China
- The First Affiliated Hospital, Zhejiang University School of Medicine, and Liangzhu Laboratory of Zhejiang University, Hangzhou 310000, China
| | - Haowei Zuo
- Institute for Regenerative Medicine, Shanghai East Hospital, Shanghai Key Laboratory of Signaling and Disease Research, Frontier Science Center for Stem Cell Research, School of Life Sciences and Technology, Tongji University, Shanghai 200092, China; (R.L.); (Y.L.); (H.Z.)
| | - Gang Pei
- State Key Laboratory of Cell Biology, CAS Center for Excellence in Molecular Cell Science, Shanghai Institute of Biochemistry and Cell Biology, Chinese Academy of Sciences, University of Chinese Academy of Sciences, Shanghai 200031, China
- Shanghai Key Laboratory of Signaling and Disease Research, Collaborative Innovation Center for Brain Science, School of Life Sciences and Technology, Tongji University, Shanghai 200092, China
- Institute for Stem Cell and Regeneration, Chinese Academy of Sciences, Beijing 100100, China
| | - Shichao Huang
- State Key Laboratory of Cell Biology, CAS Center for Excellence in Molecular Cell Science, Shanghai Institute of Biochemistry and Cell Biology, Chinese Academy of Sciences, University of Chinese Academy of Sciences, Shanghai 200031, China
| | - Yujun Hou
- Institute for Regenerative Medicine, Shanghai East Hospital, Shanghai Key Laboratory of Signaling and Disease Research, Frontier Science Center for Stem Cell Research, School of Life Sciences and Technology, Tongji University, Shanghai 200092, China; (R.L.); (Y.L.); (H.Z.)
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Queiroz LY, Kageyama R, Cimarosti HI. SUMOylation effects on neural stem cells self-renewal, differentiation, and survival. Neurosci Res 2024; 199:1-11. [PMID: 37742800 DOI: 10.1016/j.neures.2023.09.006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2023] [Revised: 09/14/2023] [Accepted: 09/20/2023] [Indexed: 09/26/2023]
Abstract
SUMO (small ubiquitin-like modifier) conjugation or SUMOylation, a post-translational modification, is a crucial regulator of protein function and cellular processes. In the context of neural stem cells (NSCs), SUMOylation has emerged as a key player, affecting their proliferation, differentiation, and survival. By modifying transcription factors, such as SOX1, SOX2, SOX3, SOX6, Bmi1, and Nanog, SUMOylation can either enhance or impair their transcriptional activity, thus impacting on NSCs self-renewal. Moreover, SUMOylation regulates neurogenesis and neuronal differentiation by modulating key proteins, such as Foxp1, Mecp2, MEF2A, and SOX10. SUMOylation is also crucial for the survival and proliferation of NSCs in both developing and adult brains. By regulating the activity of transcription factors, coactivators, and corepressors, SUMOylation acts as a molecular switch, inducing cofactor recruitment and function during development. Importantly, dysregulation of NSCs SUMOylation has been implicated in various disorders, including embryonic defects, ischemic cerebrovascular disease, glioma, and the harmful effects of benzophenone-3 exposure. Here we review the main findings on SUMOylation-mediated regulation of NSCs self-renewal, differentiation and survival. Better understanding NSCs SUMOylation mechanisms and its functional consequences might provide new strategies to promote neuronal differentiation that could contribute for the development of novel therapies targeting neurodegenerative diseases.
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Affiliation(s)
- Letícia Yoshitome Queiroz
- Postgraduate Program in Pharmacology, Federal University of Santa Catarina (UFSC), Florianopolis, Brazil
| | - Ryoichiro Kageyama
- Graduate School of Medicine, Kyoto University, Kyoto, Japan; RIKEN Center for Brain Science, Wako, Japan
| | - Helena I Cimarosti
- Postgraduate Program in Pharmacology, Federal University of Santa Catarina (UFSC), Florianopolis, Brazil; Postgraduate Program in Neuroscience, UFSC, Florianopolis, Brazil.
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Deng X, Hu X, Wang S, Zhao H, Wei Y, Fu J, Wu W, Liu J, Zhang C, Wang L, Yuan P. Neural stem cell-derived exosomes regulate cell proliferation, migration, and cell death of brain microvascular endothelial cells via the miR-9/Hes1 axis under hypoxia. Animal Model Exp Med 2024; 7:24-35. [PMID: 38369683 PMCID: PMC10961869 DOI: 10.1002/ame2.12394] [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: 10/17/2023] [Accepted: 01/23/2024] [Indexed: 02/20/2024] Open
Abstract
BACKGROUND Our previous study found that mouse embryonic neural stem cell (NSC)-derived exosomes (EXOs) regulated NSC differentiation via the miR-9/Hes1 axis. However, the effects of EXOs on brain microvascular endothelial cell (BMEC) dysfunction via the miR-9/Hes1 axis remain unknown. Therefore, the current study aimed to determine the effects of EXOs on BMEC proliferation, migration, and death via the miR-9/Hes1 axis. METHODS Immunofluorescence, quantitative real-time polymerase chain reaction, cell counting kit-8 assay, wound healing assay, calcein-acetoxymethyl/propidium iodide staining, and hematoxylin and eosin staining were used to determine the role and mechanism of EXOs on BMECs. RESULTS EXOs promoted BMEC proliferation and migration and reduced cell death under hypoxic conditions. The overexpression of miR-9 promoted BMEC proliferation and migration and reduced cell death under hypoxic conditions. Moreover, miR-9 downregulation inhibited BMEC proliferation and migration and also promoted cell death. Hes1 silencing ameliorated the effect of amtagomiR-9 on BMEC proliferation and migration and cell death. Hyperemic structures were observed in the regions of the hippocampus and cortex in hypoxia-induced mice. Meanwhile, EXO treatment improved cerebrovascular alterations. CONCLUSION NSC-derived EXOs can promote BMEC proliferation and migration and reduce cell death via the miR-9/Hes1 axis under hypoxic conditions. Therefore, EXO therapeutic strategies could be considered for hypoxia-induced vascular injury.
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Affiliation(s)
- Xiaojun Deng
- Department of Critical Care Medicine, Shanghai Sixth People's Hospital, Shanghai Jiao Tong University, Shanghai, China
| | - Xiaoyi Hu
- Department of Cardio-Pulmonary Circulation, Shanghai Pulmonary Hospital, School of Medicine, Tongji University, Shanghai, China
| | - Shang Wang
- Department of Cardio-Pulmonary Circulation, Shanghai Pulmonary Hospital, School of Medicine, Tongji University, Shanghai, China
| | - Hui Zhao
- Institute of Bismuth Science, University of Shanghai for Science and Technology, Shanghai, China
| | - Yaqin Wei
- Department of Cardio-Pulmonary Circulation, Shanghai Pulmonary Hospital, School of Medicine, Tongji University, Shanghai, China
| | - Jiaqi Fu
- Institute of Bismuth Science, University of Shanghai for Science and Technology, Shanghai, China
| | - Wenhui Wu
- Department of Cardio-Pulmonary Circulation, Shanghai Pulmonary Hospital, School of Medicine, Tongji University, Shanghai, China
| | - Jinming Liu
- Department of Cardio-Pulmonary Circulation, Shanghai Pulmonary Hospital, School of Medicine, Tongji University, Shanghai, China
| | - Caicai Zhang
- Department of Physiology, Hainan Medical University Haikou, Hainan, China
| | - Lili Wang
- Department of Clinical Medical Laboratory Center, Hangzhou Red Cross Hospital, Zhejiang, China
| | - Ping Yuan
- Department of Cardio-Pulmonary Circulation, Shanghai Pulmonary Hospital, School of Medicine, Tongji University, Shanghai, China
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Whitlock JH, Soelter TM, Howton TC, Wilk EJ, Oza VH, Lasseigne BN. Cell-type-specific gene expression and regulation in the cerebral cortex and kidney of atypical Setbp1 S858R Schinzel Giedion Syndrome mice. J Cell Mol Med 2023; 27:3565-3577. [PMID: 37872881 PMCID: PMC10660642 DOI: 10.1111/jcmm.18001] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2023] [Revised: 09/27/2023] [Accepted: 10/05/2023] [Indexed: 10/25/2023] Open
Abstract
Schinzel Giedion Syndrome (SGS) is an ultra-rare autosomal dominant Mendelian disease presenting with abnormalities spanning multiple organ systems. The most notable phenotypes involve severe developmental delay, progressive brain atrophy, and drug-resistant seizures. SGS is caused by spontaneous variants in SETBP1, which encodes for the epigenetic hub SETBP1 transcription factor (TF). SETBP1 variants causing classical SGS cluster at the degron, disrupting SETBP1 protein degradation and resulting in toxic accumulation, while those located outside cause milder atypical SGS. Due to the multisystem phenotype, we evaluated gene expression and regulatory programs altered in atypical SGS by snRNA-seq of the cerebral cortex and kidney of Setbp1S858R heterozygous mice (corresponds to the human likely pathogenic SETBP1S867R variant) compared to matched wild-type mice by constructing cell-type-specific regulatory networks. Setbp1 was differentially expressed in excitatory neurons, but known SETBP1 targets were differentially expressed and regulated in many cell types. Our findings suggest molecular drivers underlying neurodevelopmental phenotypes in classical SGS also drive atypical SGS, persist after birth, and are present in the kidney. Our results indicate SETBP1's role as an epigenetic hub leads to cell-type-specific differences in TF activity, gene targeting, and regulatory rewiring. This research provides a framework for investigating cell-type-specific variant impact on gene expression and regulation.
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Affiliation(s)
- Jordan H. Whitlock
- Department of Cell, Developmental and Integrative Biology, Heersink School of MedicineThe University of Alabama at BirminghamBirminghamAlabamaUSA
| | - Tabea M. Soelter
- Department of Cell, Developmental and Integrative Biology, Heersink School of MedicineThe University of Alabama at BirminghamBirminghamAlabamaUSA
| | - Timothy C. Howton
- Department of Cell, Developmental and Integrative Biology, Heersink School of MedicineThe University of Alabama at BirminghamBirminghamAlabamaUSA
| | - Elizabeth J. Wilk
- Department of Cell, Developmental and Integrative Biology, Heersink School of MedicineThe University of Alabama at BirminghamBirminghamAlabamaUSA
| | - Vishal H. Oza
- Department of Cell, Developmental and Integrative Biology, Heersink School of MedicineThe University of Alabama at BirminghamBirminghamAlabamaUSA
| | - Brittany N. Lasseigne
- Department of Cell, Developmental and Integrative Biology, Heersink School of MedicineThe University of Alabama at BirminghamBirminghamAlabamaUSA
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Afhami M, Behnam-Rassouli M, Gorji A, Karima S, Shahpasand K. Isolation and Culture of Neural Stem/Progenitor Cells from the Hippocampal Dentate Gyrus of Young Adult and Aged Rats. Bio Protoc 2023; 13:e4843. [PMID: 37817897 PMCID: PMC10560695 DOI: 10.21769/bioprotoc.4843] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2023] [Revised: 07/27/2023] [Accepted: 08/24/2023] [Indexed: 10/12/2023] Open
Abstract
Adult neural stem/progenitor cells (NSPCs) in two neurogenic areas of the brain, the dentate gyrus and the subventricular zone, are major players in adult neurogenesis. Addressing specific questions regarding NSPCs outside of their niche entails in vitro studies through isolation and culture of these cells. As there is heterogeneity in their morphology, proliferation, and differentiation capacity between these two neurogenic areas, NSPCs should be isolated from each area through specific procedures and media. Identifying region-specific NPSCs provides an accurate pathway for assessing the effects of extrinsic factors and drugs on these cells and investigating the mechanisms of neurogenesis in both healthy and pathologic conditions. A great number of isolation and expansion techniques for NSPCs have been reported. The growth and expansion of NSPCs obtained from the dentate gyrus of aged rats are generally difficult. There are relatively limited data and protocols about NSPCs isolation and their culture from aged rats. Our approach is an efficient and reliable strategy to isolate and expand NSPCs obtained from young adult and aged rats. NSPCs isolated by this method maintain their self-renewal and multipotency. Key features • NSPCs isolated from the hippocampal dentate gyrus of young adult and aged rats, based on Kempermann et al. (2014) and Aligholi et al. (2014). • Maintenance of NSPCs isolated from the dentate gyrus of aged rats (20-24 months) in our culture condition is feasible. • According to our protocol, maximum growth of primary neurospheres obtained from isolated NSPCs of young and aged rats took 15 and 35 days, respectively.
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Affiliation(s)
- Mina Afhami
- Department of Biology, Faculty of Science, Ferdowsi University of Mashhad, Azadi Square, Mashhad, Iran
| | - Morteza Behnam-Rassouli
- Department of Biology, Faculty of Science, Ferdowsi University of Mashhad, Azadi Square, Mashhad, Iran
| | - Ali Gorji
- Shefa Neuroscience Research Center, Khatam Alanbia Hospital, Tehran, Iran
- Epilepsy Research Center, Department of Neurosurgery, Westfälische Wilhelms-Universität Münster, Münster, Germany
- Neuroscience Research Center, Mashhad University of Medical Sciences, Mashhad, Iran
- Department of Neuroscience, Faculty of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Saeed Karima
- Department of Clinical Biochemistry, School of Medicine, Shahid Beheshti University of Medical Sciences (SBMU), Tehran, Iran
| | - Koorosh Shahpasand
- Department of Stem Cells and Developmental Biology, Cell Science Research Center, Royan Institute for Stem Cell Biology and Technology, Academic Center for Education, Culture and Research (ACECR), Tehran, Iran
- Department of Brain and Cognitive Sciences, Cell Science Research Center, Royan Institute for Stem Cell Biology and Technology, ACECR, Tehran, Iran
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Narzisi A, Halladay A, Masi G, Novarino G, Lord C. Tempering expectations: considerations on the current state of stem cells therapy for autism treatment. Front Psychiatry 2023; 14:1287879. [PMID: 37854442 PMCID: PMC10579796 DOI: 10.3389/fpsyt.2023.1287879] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/02/2023] [Accepted: 09/13/2023] [Indexed: 10/20/2023] Open
Affiliation(s)
- Antonio Narzisi
- Department of Child Psychiatry and Psychopharmacology, IRCCS Stella Maris Foundation, Calambrone, Pisa, Italy
| | - Alycia Halladay
- Autism Science Foundation, New York, NY, United States
- Department of Pharmacology and Toxicology, Rutgers University, Piscataway, NJ, United States
| | - Gabriele Masi
- Department of Child Psychiatry and Psychopharmacology, IRCCS Stella Maris Foundation, Calambrone, Pisa, Italy
| | - Gaia Novarino
- Institute of Science and Technology Austria, Klosterneuburg, Austria
| | - Catherine Lord
- Department of Psychiatry and Human Development and Psychology, University of California, Los Angeles, Los Angeles, CA, United States
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Zhou Y, Li H, Liu X, Chi X, Gu Z, Cui B, Bergquist J, Wang B, Tian G, Yang C, Xu F, Mi J. The Combination of Quantitative Proteomics and Systems Genetics Analysis Reveals that PTN Is Associated with Sleep-Loss-Induced Cognitive Impairment. J Proteome Res 2023; 22:2936-2949. [PMID: 37611228 DOI: 10.1021/acs.jproteome.3c00269] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/25/2023]
Abstract
Sleep loss is associated with cognitive dysfunction. However, the detailed mechanisms remain unclear. In this study, we established a para-chlorophenylalanine (PCPA)-induced insomniac mouse model with impaired cognitive function. Mass-spectrometry-based proteomics showed that the expression of 164 proteins was significantly altered in the hippocampus of the PCPA mice. To identify critical regulators among the potential markers, a transcriptome-wide association screening was performed in the BXD mice panel. Among the candidates, the expression of pleiotrophin (Ptn) was significantly associated with cognitive functions, indicating that Ptn-mediates sleep-loss-induced cognitive impairment. Gene co-expression analysis further revealed the potential mechanism by which Ptn mediates insomnia-induced cognitive impairment via the MAPK signaling pathway; that is, the decreased secretion of Ptn induced by insomnia leads to reduced binding to Ptprz1 on the postsynaptic membrane with the activation of the MAPK pathway via Fos and Nr4a1, further leading to the apoptosis of neurons. In addition, Ptn is genetically trans-regulated in the mouse hippocampus and implicated in neurodegenerative diseases in human genome-wide association studies. Our study provides a novel biomarker for insomnia-induced cognitive impairment and a new strategy for seeking neurological biomarkers by the integration of proteomics and systems genetics.
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Affiliation(s)
- Yutong Zhou
- Shandong Technology Innovation Center of Molecular Targeting and Intelligent Diagnosis and Treatment, Binzhou Medical University, Yantai, Shandong 264003, China
| | - Hui Li
- Shandong Technology Innovation Center of Molecular Targeting and Intelligent Diagnosis and Treatment, Binzhou Medical University, Yantai, Shandong 264003, China
| | - Xiaoya Liu
- Shandong Technology Innovation Center of Molecular Targeting and Intelligent Diagnosis and Treatment, Binzhou Medical University, Yantai, Shandong 264003, China
| | - Xiaodong Chi
- Shandong Technology Innovation Center of Molecular Targeting and Intelligent Diagnosis and Treatment, Binzhou Medical University, Yantai, Shandong 264003, China
| | - Zhaoxi Gu
- Shandong Technology Innovation Center of Molecular Targeting and Intelligent Diagnosis and Treatment, Binzhou Medical University, Yantai, Shandong 264003, China
| | - Binsen Cui
- Shandong Technology Innovation Center of Molecular Targeting and Intelligent Diagnosis and Treatment, Binzhou Medical University, Yantai, Shandong 264003, China
| | - Jonas Bergquist
- Shandong Technology Innovation Center of Molecular Targeting and Intelligent Diagnosis and Treatment, Binzhou Medical University, Yantai, Shandong 264003, China
- Department of Chemistry-BMC, Analytical Chemistry and Neurochemistry, Uppsala University, Uppsala 75124, Sweden
| | - Binsheng Wang
- Shandong Technology Innovation Center of Molecular Targeting and Intelligent Diagnosis and Treatment, Binzhou Medical University, Yantai, Shandong 264003, China
| | - Geng Tian
- Shandong Technology Innovation Center of Molecular Targeting and Intelligent Diagnosis and Treatment, Binzhou Medical University, Yantai, Shandong 264003, China
| | - Chunhua Yang
- Shandong Technology Innovation Center of Molecular Targeting and Intelligent Diagnosis and Treatment, Binzhou Medical University, Yantai, Shandong 264003, China
| | - Fuyi Xu
- Shandong Technology Innovation Center of Molecular Targeting and Intelligent Diagnosis and Treatment, Binzhou Medical University, Yantai, Shandong 264003, China
| | - Jia Mi
- Shandong Technology Innovation Center of Molecular Targeting and Intelligent Diagnosis and Treatment, Binzhou Medical University, Yantai, Shandong 264003, China
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11
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Wang Z. Assessing Tumorigenicity in Stem Cell-Derived Therapeutic Products: A Critical Step in Safeguarding Regenerative Medicine. Bioengineering (Basel) 2023; 10:857. [PMID: 37508884 PMCID: PMC10376867 DOI: 10.3390/bioengineering10070857] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2023] [Revised: 07/08/2023] [Accepted: 07/18/2023] [Indexed: 07/30/2023] Open
Abstract
Stem cells hold promise in regenerative medicine due to their ability to proliferate and differentiate into various cell types. However, their self-renewal and multipotency also raise concerns about their tumorigenicity during and post-therapy. Indeed, multiple studies have reported the presence of stem cell-derived tumors in animal models and clinical administrations. Therefore, the assessment of tumorigenicity is crucial in evaluating the safety of stem cell-derived therapeutic products. Ideally, the assessment needs to be performed rapidly, sensitively, cost-effectively, and scalable. This article reviews various approaches for assessing tumorigenicity, including animal models, soft agar culture, PCR, flow cytometry, and microfluidics. Each method has its advantages and limitations. The selection of the assay depends on the specific needs of the study and the stage of development of the stem cell-derived therapeutic product. Combining multiple assays may provide a more comprehensive evaluation of tumorigenicity. Future developments should focus on the optimization and standardization of microfluidics-based methods, as well as the integration of multiple assays into a single platform for efficient and comprehensive evaluation of tumorigenicity.
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Affiliation(s)
- Zongjie Wang
- Department of Biomedical Engineering, McCormick School of Engineering, Northwestern University, Evanston, IL 60208, USA
- Chan Zuckerberg Biohub Chicago, Chicago, IL 60607, USA
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12
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Ando Y, Chang FC, James M, Zhou Y, Zhang M. Chitosan Scaffolds as Microcarriers for Dynamic Culture of Human Neural Stem Cells. Pharmaceutics 2023; 15:1957. [PMID: 37514142 PMCID: PMC10384976 DOI: 10.3390/pharmaceutics15071957] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2023] [Revised: 07/03/2023] [Accepted: 07/11/2023] [Indexed: 07/30/2023] Open
Abstract
Human neural stem cells (hNSCs) possess remarkable potential for regenerative medicine in the treatment of presently incurable diseases. However, a key challenge lies in producing sufficient quantities of hNSCs, which is necessary for effective treatment. Dynamic culture systems are recognized as a powerful approach to producing large quantities of hNSCs required, where microcarriers play a critical role in supporting cell expansion. Nevertheless, the currently available microcarriers have limitations, including a lack of appropriate surface chemistry to promote cell adhesion, inadequate mechanical properties to protect cells from dynamic forces, and poor suitability for mass production. Here, we present the development of three-dimensional (3D) chitosan scaffolds as microcarriers for hNSC expansion under defined conditions in bioreactors. We demonstrate that chitosan scaffolds with a concentration of 4 wt% (4CS scaffolds) exhibit desirable microstructural characteristics and mechanical properties suited for hNSC expansion. Furthermore, they could also withstand degradation in dynamic conditions. The 4CS scaffold condition yields optimal metabolic activity, cell adhesion, and protein expression, enabling sustained hNSC expansion for up to three weeks in a dynamic culture. Our study introduces an effective microcarrier approach for prolonged expansion of hNSCs, which has the potential for mass production in a three-dimensional setting.
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Affiliation(s)
- Yoshiki Ando
- Department of Materials Science and Engineering, University of Washington, Seattle, WA 98195, USA
- Materials Department, Medical R&D Center, Corporate R&D Group, KYOCERA Corporation, Yasu 520-2362, Shiga, Japan
| | - Fei-Chien Chang
- Department of Materials Science and Engineering, University of Washington, Seattle, WA 98195, USA
| | - Matthew James
- Department of Materials Science and Engineering, University of Washington, Seattle, WA 98195, USA
| | - Yang Zhou
- Department of Materials Science and Engineering, University of Washington, Seattle, WA 98195, USA
| | - Miqin Zhang
- Department of Materials Science and Engineering, University of Washington, Seattle, WA 98195, USA
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13
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Ke NY, Zhao TY, Wang WR, Qian YT, Liu C. Role of brahma-related gene 1/brahma-associated factor subunits in neural stem/progenitor cells and related neural developmental disorders. World J Stem Cells 2023; 15:235-247. [PMID: 37181007 PMCID: PMC10173807 DOI: 10.4252/wjsc.v15.i4.235] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/24/2022] [Revised: 02/12/2023] [Accepted: 03/20/2023] [Indexed: 04/26/2023] Open
Abstract
Different fates of neural stem/progenitor cells (NSPCs) and their progeny are determined by the gene regulatory network, where a chromatin-remodeling complex affects synergy with other regulators. Here, we review recent research progress indicating that the BRG1/BRM-associated factor (BAF) complex plays an important role in NSPCs during neural development and neural developmental disorders. Several studies based on animal models have shown that mutations in the BAF complex may cause abnormal neural differentiation, which can also lead to various diseases in humans. We discussed BAF complex subunits and their main characteristics in NSPCs. With advances in studies of human pluripotent stem cells and the feasibility of driving their differentiation into NSPCs, we can now investigate the role of the BAF complex in regulating the balance between self-renewal and differentiation of NSPCs. Considering recent progress in these research areas, we suggest that three approaches should be used in investigations in the near future. Sequencing of whole human exome and genome-wide association studies suggest that mutations in the subunits of the BAF complex are related to neurodevelopmental disorders. More insight into the mechanism of BAF complex regulation in NSPCs during neural cell fate decisions and neurodevelopment may help in exploiting new methods for clinical applications.
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Affiliation(s)
- Nai-Yu Ke
- The First Clinical Medical College, Anhui Medical University, Hefei 230032, Anhui Province, China
- Institute of Stem cells and Tissue Engineering, School of Basic Medical Sciences, Anhui Medical University, Hefei 230032, Anhui Province, China
| | - Tian-Yi Zhao
- Institute of Stem cells and Tissue Engineering, School of Basic Medical Sciences, Anhui Medical University, Hefei 230032, Anhui Province, China
| | - Wan-Rong Wang
- The First Clinical Medical College, Anhui Medical University, Hefei 230032, Anhui Province, China
- Institute of Stem cells and Tissue Engineering, School of Basic Medical Sciences, Anhui Medical University, Hefei 230032, Anhui Province, China
| | - Yu-Tong Qian
- The First Clinical Medical College, Anhui Medical University, Hefei 230032, Anhui Province, China
- Institute of Stem cells and Tissue Engineering, School of Basic Medical Sciences, Anhui Medical University, Hefei 230032, Anhui Province, China
| | - Chao Liu
- Institute of Stem cells and Tissue Engineering, School of Basic Medical Sciences, Anhui Medical University, Hefei 230032, Anhui Province, China
- Department of Histology and Embryology, School of Basic Medical Sciences, Anhui Medical University, Hefei 230032, Anhui Province, China
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14
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Gao Y, Syed M, Zhao X. Mechanisms underlying the effect of voluntary running on adult hippocampal neurogenesis. Hippocampus 2023; 33:373-390. [PMID: 36892196 PMCID: PMC10566571 DOI: 10.1002/hipo.23520] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2022] [Revised: 02/11/2023] [Accepted: 02/17/2023] [Indexed: 03/10/2023]
Abstract
Adult hippocampal neurogenesis is important for preserving learning and memory-related cognitive functions. Physical exercise, especially voluntary running, is one of the strongest stimuli to promote neurogenesis and has beneficial effects on cognitive functions. Voluntary running promotes exit of neural stem cells (NSCs) from the quiescent stage, proliferation of NSCs and progenitors, survival of newborn cells, morphological development of immature neuron, and integration of new neurons into the hippocampal circuitry. However, the detailed mechanisms driving these changes remain unclear. In this review, we will summarize current knowledge with respect to molecular mechanisms underlying voluntary running-induced neurogenesis, highlighting recent genome-wide gene expression analyses. In addition, we will discuss new approaches and future directions for dissecting the complex cellular mechanisms driving change in adult-born new neurons in response to physical exercise.
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Affiliation(s)
- Yu Gao
- Waisman Center, University of Wisconsin-Madison, Madison, WI 53705, USA
- Department of Neuroscience, School of Medicine and Public Health, University of Wisconsin-Madison, Madison, WI 53705, USA
| | - Moosa Syed
- Waisman Center, University of Wisconsin-Madison, Madison, WI 53705, USA
- Department of Neuroscience, School of Medicine and Public Health, University of Wisconsin-Madison, Madison, WI 53705, USA
| | - Xinyu Zhao
- Waisman Center, University of Wisconsin-Madison, Madison, WI 53705, USA
- Department of Neuroscience, School of Medicine and Public Health, University of Wisconsin-Madison, Madison, WI 53705, USA
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15
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Radoszkiewicz K, Hribljan V, Isakovic J, Mitrecic D, Sarnowska A. Critical points for optimizing long-term culture and neural differentiation capacity of rodent and human neural stem cells to facilitate translation into clinical settings. Exp Neurol 2023; 363:114353. [PMID: 36841464 DOI: 10.1016/j.expneurol.2023.114353] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2022] [Revised: 02/03/2023] [Accepted: 02/18/2023] [Indexed: 02/27/2023]
Abstract
Despite several decades of research on the nature and functional properties of neural stem cells, which brought great advances in regenerative medicine, there is still a plethora of ambiguous protocols and interpretations linked to their applications. Here, we present a whole spectrum of protocol elements that should be standardized in order to obtain viable cell cultures and facilitate their translation into clinical settings. Additionally, this review also presents outstanding limitations and possible problems to be encountered when dealing with protocol optimization. Most importantly, we also outline the critical points that should be considered before starting any experiments utilizing neural stem cells or interpreting their results.
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Affiliation(s)
- Klaudia Radoszkiewicz
- Translational Platform for Regenerative Medicine, Mossakowski Medical Research Institute, Polish Academy of Sciences, Pawinskiego 5 Street, 02-106 Warsaw, Poland
| | - Valentina Hribljan
- Laboratory for Stem Cells, Croatian Institute for Brain Research, University of Zagreb School of Medicine, Šalata 12, Zagreb, Croatia
| | - Jasmina Isakovic
- Omnion Research International Ltd, Heinzelova 4, 10000 Zagreb, Croatia
| | - Dinko Mitrecic
- Laboratory for Stem Cells, Croatian Institute for Brain Research, University of Zagreb School of Medicine, Šalata 12, Zagreb, Croatia
| | - Anna Sarnowska
- Translational Platform for Regenerative Medicine, Mossakowski Medical Research Institute, Polish Academy of Sciences, Pawinskiego 5 Street, 02-106 Warsaw, Poland.
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16
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Yazdani N, Willits RK. Mimicking the neural stem cell niche: An engineer’s view of cell: material interactions. FRONTIERS IN CHEMICAL ENGINEERING 2023. [DOI: 10.3389/fceng.2022.1086099] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023] Open
Abstract
Neural stem cells have attracted attention in recent years to treat neurodegeneration. There are two neurogenic regions in the brain where neural stem cells reside, one of which is called the subventricular zone (SVZ). The SVZ niche is a complicated microenvironment providing cues to regulate self-renewal and differentiation while maintaining the neural stem cell’s pool. Many scientists have spent years understanding the cellular and structural characteristics of the SVZ niche, both in homeostasis and pathological conditions. On the other hand, engineers focus primarily on designing platforms using the knowledge they acquire to understand the effect of individual factors on neural stem cell fate decisions. This review provides a general overview of what we know about the components of the SVZ niche, including the residing cells, extracellular matrix (ECM), growth factors, their interactions, and SVZ niche changes during aging and neurodegenerative diseases. Furthermore, an overview will be given on the biomaterials used to mimic neurogenic niche microenvironments and the design considerations applied to add bioactivity while meeting the structural requirements. Finally, it will discuss the potential gaps in mimicking the microenvironment.
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17
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Brockmueller A, Mahmoudi N, Movaeni AK, Mueller AL, Kajbafzadeh AM, Shakibaei M, Zolbin MM. Stem Cells and Natural Agents in the Management of Neurodegenerative Diseases: A New Approach. Neurochem Res 2023; 48:39-53. [PMID: 36112254 DOI: 10.1007/s11064-022-03746-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2022] [Revised: 08/26/2022] [Accepted: 08/31/2022] [Indexed: 01/11/2023]
Abstract
Neurodegenerative diseases refer to a group of neurological disorders as a consequence of various destructive illnesses, that predominantly impact neurons in the central nervous system, resulting in impairments in certain brain functions. Alzheimer's disease, Parkinson's disease, Huntington's disease, multiple sclerosis, and other neurodegenerative disorders represent a major risk to human health. In order to optimize structural and functional recovery, reconstructive methods integrate many approaches now, to address the complex and multivariate pathophysiology of neurodegenerative disorders. Stem cells, with their unique property of regeneration, offer new possibilities in regenerative and reconstructive medicine. Concurrently, there is an important role for natural products in controlling many health sufferings and they can delay or even prevent the onset of various diseases. In addition, due to their therapeutic properties, they have been used as neuroprotective agents to treat neurodegenerative disorders. After decades of intensive research, scientists made advances in treating these disorders so far, but current therapies are still not capable of preventing the illnesses from progressing. Therefore, in this review, we focused on a new perspective combining stem cells and natural products as an innovative therapy option in the management of neurodegenerative diseases.
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Affiliation(s)
- Aranka Brockmueller
- Musculoskeletal Research Group and Tumor Biology, Chair of Vegetative Anatomy, Institute of Anatomy, Faculty of Medicine, Ludwig-Maximilians-University Munich, Pettenkoferstrasse 11, 80336, Munich, Germany
| | - Negin Mahmoudi
- Pediatric Urology and Regenerative Medicine Research Center, Gene, Cell and Tissue Research Institute, Children's Medical Center, Tehran University of Medical Sciences, Tehran, Iran
| | - Amir Kian Movaeni
- Pediatric Urology and Regenerative Medicine Research Center, Gene, Cell and Tissue Research Institute, Children's Medical Center, Tehran University of Medical Sciences, Tehran, Iran
| | - Anna-Lena Mueller
- Musculoskeletal Research Group and Tumor Biology, Chair of Vegetative Anatomy, Institute of Anatomy, Faculty of Medicine, Ludwig-Maximilians-University Munich, Pettenkoferstrasse 11, 80336, Munich, Germany
| | - Abdol-Mohammad Kajbafzadeh
- Pediatric Urology and Regenerative Medicine Research Center, Gene, Cell and Tissue Research Institute, Children's Medical Center, Tehran University of Medical Sciences, Tehran, Iran
| | - Mehdi Shakibaei
- Musculoskeletal Research Group and Tumor Biology, Chair of Vegetative Anatomy, Institute of Anatomy, Faculty of Medicine, Ludwig-Maximilians-University Munich, Pettenkoferstrasse 11, 80336, Munich, Germany.
| | - Masoumeh Majidi Zolbin
- Pediatric Urology and Regenerative Medicine Research Center, Gene, Cell and Tissue Research Institute, Children's Medical Center, Tehran University of Medical Sciences, Tehran, Iran.
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18
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Anand SK, Ahmad MH, Sahu MR, Subba R, Mondal AC. Detrimental Effects of Alcohol-Induced Inflammation on Brain Health: From Neurogenesis to Neurodegeneration. Cell Mol Neurobiol 2022:10.1007/s10571-022-01308-2. [DOI: 10.1007/s10571-022-01308-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2022] [Accepted: 11/11/2022] [Indexed: 11/28/2022]
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19
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Stem cell membrane-coated abiotic nanomaterials for biomedical applications. J Control Release 2022; 351:174-197. [PMID: 36103910 DOI: 10.1016/j.jconrel.2022.09.012] [Citation(s) in RCA: 19] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/04/2022] [Revised: 09/06/2022] [Accepted: 09/07/2022] [Indexed: 12/15/2022]
Abstract
Nanoscale materials have been extensively employed for diagnostic and therapeutic purposes. However, the developed nanosystems still suffer from some limitations, namely the rapid elimination by the immune system, lack of targeting to specific cells, and insufficient biocompatibility. Therefore, novel strategies based upon a biomimetic approach have received attention to improving the pharmacokinetics and safety profile of nanosystems. One promising strategy is the application of a biomimetic coating consisting of cell membranes derived from different cell types onto nanoparticle cores. Stem cells have been investigated to develop targeted nanodevices owing to their excellent intrinsic tissue-specific homing features, protecting them from the immune system to reach the sites of inflammation. This targeting ability is conferred by a surface repertoire of stem cell-associated biomolecules. Such nanoscopical materials offer sustained circulation and boosted drug accumulation at target sites, augmenting therapeutic efficacy and safety. Additionally, the coating of nanoparticles with cell membranes acts as a camouflage mechanism to increase their circulation time. The current review explores the particular features of stem cell membrane coating as multifunctional biomimetic surface functionalization agents to camouflage nanoparticle cores. Biomedical applications of engineered stem cell membrane-coated nanoparticles, challenges in clinical translation, and their future prospects are addressed.
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20
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López-Ornelas A, Jiménez A, Pérez-Sánchez G, Rodríguez-Pérez CE, Corzo-Cruz A, Velasco I, Estudillo E. The Impairment of Blood-Brain Barrier in Alzheimer's Disease: Challenges and Opportunities with Stem Cells. Int J Mol Sci 2022; 23:ijms231710136. [PMID: 36077533 PMCID: PMC9456198 DOI: 10.3390/ijms231710136] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2022] [Revised: 08/28/2022] [Accepted: 09/01/2022] [Indexed: 11/17/2022] Open
Abstract
Alzheimer’s disease (AD) is the most common neurodegenerative disorder and its prevalence is increasing. Nowadays, very few drugs effectively reduce AD symptoms and thus, a better understanding of its pathophysiology is vital to design new effective schemes. Presymptomatic neuronal damage caused by the accumulation of Amyloid β peptide and Tau protein abnormalities remains a challenge, despite recent efforts in drug development. Importantly, therapeutic targets, biomarkers, and diagnostic techniques have emerged to detect and treat AD. Of note, the compromised blood-brain barrier (BBB) and peripheral inflammation in AD are becoming more evident, being harmful factors that contribute to the development of the disease. Perspectives from different pre-clinical and clinical studies link peripheral inflammation with the onset and progression of AD. This review aims to analyze the main factors and the contribution of impaired BBB in AD development. Additionally, we describe the potential therapeutic strategies using stem cells for AD treatment.
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Affiliation(s)
- Adolfo López-Ornelas
- División de Investigación, Hospital Juárez de México, Mexico City 07760, Mexico
- Hospital Nacional Homeopático, Hospitales Federales de Referencia, Mexico City 06800, Mexico
| | - Adriana Jiménez
- División de Investigación, Hospital Juárez de México, Mexico City 07760, Mexico
| | - Gilberto Pérez-Sánchez
- Laboratorio de Psicoinmunología, Instituto Nacional de Psiquiatría Ramón de la Fuente Muñiz, Calzada México-Xochimilco 101, Colonia San Lorenzo Huipulco, Tlalpan, Ciudad de México 14370, Mexico
| | - Citlali Ekaterina Rodríguez-Pérez
- Laboratorio de Neurofarmacología Molecular y Nanotecnología, Instituto Nacional de Neurología y Neurocirugía Manuel Velasco Suárez, Mexico City 14269, Mexico
| | - Alejandro Corzo-Cruz
- Laboratorio Traslacional, Escuela Militar de Graduados de Sanidad, Secretaría de la Defensa Nacional, Batalla de Celaya 202, Lomas de Sotelo, Miguel Hidalgo, Ciudad de México 11200, Mexico
| | - Iván Velasco
- Instituto de Fisiología Celular—Neurociencias, Universidad Nacional Autónoma de Mexico, Mexico City 04510, Mexico
- Laboratorio de Reprogramación Celular, Instituto Nacional de Neurología y Neurocirugía Manuel Velasco Suárez, Mexico City 14269, Mexico
| | - Enrique Estudillo
- Laboratorio de Reprogramación Celular, Instituto Nacional de Neurología y Neurocirugía Manuel Velasco Suárez, Mexico City 14269, Mexico
- Correspondence:
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21
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Alnasser SM. Stem cell challenge in cancer progression, oncology and therapy. Gene X 2022; 840:146748. [PMID: 35868413 DOI: 10.1016/j.gene.2022.146748] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2022] [Revised: 07/07/2022] [Accepted: 07/14/2022] [Indexed: 11/04/2022] Open
Abstract
Stem cell therapy consisted in the use of cells to treat damaged tissue, especially in cancer cases. Several cancer treatment techniques are developed today. However, the effectiveness of the treatments as well as the results remain too limited. We will discuss in this work the main advantages of the use of several categories of cells in the treatment of various cancerous diseases. The analysis of the obtained results related to cell therapy across the world over a period of twenty years can help to orient the researchers to the objectives in a more relevant and more reliable manner. The complex challenges of funded cancer care are discussed to provide a clear perspective on the future of administration and current treatment methods.
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Affiliation(s)
- Sulaiman Mohammed Alnasser
- Department of Pharmacology and Toxicology, Unaizah College of Pharmacy, Qassim University, Saudi Arabia.
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22
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Li W, Shan B, Cheng X, He H, Qin J, Zhao H, Tian M, Zhang X, Jin G. circRNA Acbd6 promotes neural stem cell differentiation into cholinergic neurons via the miR-320-5p-Osbpl2 axis. J Biol Chem 2022; 298:101828. [PMID: 35305988 PMCID: PMC9018392 DOI: 10.1016/j.jbc.2022.101828] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2021] [Revised: 03/05/2022] [Accepted: 03/07/2022] [Indexed: 11/29/2022] Open
Abstract
Neural stem cells (NSCs) persist in the dentate gyrus of the hippocampus into adulthood and are essential for both neurogenesis and neural circuit integration. Exosomes have also been shown to play vital roles in regulating biological processes of receptor cells as a medium for cell-to-cell communication signaling molecules. The precise molecular mechanisms of exosome-mediated signaling, however, remain largely unknown. Here, we found that exosomes produced by denervated hippocampi following fimbria–fornix transection could promote the differentiation of hippocampal neural precursor cells into cholinergic neurons in coculture with NSCs. Furthermore, we found that 14 circular RNAs (circRNAs) were upregulated in hippocampal exosomes after fimbria–fornix transection using high-throughput RNA-Seq technology. We further characterized the function and mechanism by which the upregulated circRNA Acbd6 (acyl-CoA-binding domain–containing 6) promoted the differentiation of NSCs into cholinergic neurons using RT–quantitative PCR, Western blot, ELISA, flow cytometry, immunohistochemistry, and immunofluorescence assay. By luciferase reporter assay, we demonstrated that circAcbd6 functioned as an endogenous miR-320-5p sponge to inhibit miR-320-5p activity, resulting in increased oxysterol-binding protein–related protein 2 expression with subsequent facilitation of NSC differentiation. Taken together, our results suggest that circAcbd6 promotes differentiation of NSCs into cholinergic neurons via miR-320-5p/oxysterol-binding protein–related protein 2 axis, which contribute important insights to our understanding of how circRNAs regulate neurogenesis.
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Affiliation(s)
- Wen Li
- Department of Human Anatomy, Institute of Neurobiology, Medical School of Nantong University, Nantong, Jiangsu, China; Co-Innovation Center of Neuroregeneration, Nantong University, Nantong, Jiangsu, China; Key Laboratory of Neuroregeneration of Jiangsu Province and Ministry of Education, Nantong University, Nantong, Jiangsu, China
| | - Boquan Shan
- Department of Human Anatomy, Institute of Neurobiology, Medical School of Nantong University, Nantong, Jiangsu, China; Co-Innovation Center of Neuroregeneration, Nantong University, Nantong, Jiangsu, China; Key Laboratory of Neuroregeneration of Jiangsu Province and Ministry of Education, Nantong University, Nantong, Jiangsu, China
| | - Xiang Cheng
- Department of Human Anatomy, Institute of Neurobiology, Medical School of Nantong University, Nantong, Jiangsu, China; Co-Innovation Center of Neuroregeneration, Nantong University, Nantong, Jiangsu, China; Key Laboratory of Neuroregeneration of Jiangsu Province and Ministry of Education, Nantong University, Nantong, Jiangsu, China
| | - Hui He
- Department of Human Anatomy, Institute of Neurobiology, Medical School of Nantong University, Nantong, Jiangsu, China; Co-Innovation Center of Neuroregeneration, Nantong University, Nantong, Jiangsu, China; Key Laboratory of Neuroregeneration of Jiangsu Province and Ministry of Education, Nantong University, Nantong, Jiangsu, China
| | - Jianbing Qin
- Department of Human Anatomy, Institute of Neurobiology, Medical School of Nantong University, Nantong, Jiangsu, China; Co-Innovation Center of Neuroregeneration, Nantong University, Nantong, Jiangsu, China; Key Laboratory of Neuroregeneration of Jiangsu Province and Ministry of Education, Nantong University, Nantong, Jiangsu, China
| | - Heyan Zhao
- Department of Human Anatomy, Institute of Neurobiology, Medical School of Nantong University, Nantong, Jiangsu, China; Co-Innovation Center of Neuroregeneration, Nantong University, Nantong, Jiangsu, China; Key Laboratory of Neuroregeneration of Jiangsu Province and Ministry of Education, Nantong University, Nantong, Jiangsu, China
| | - Meiling Tian
- Department of Human Anatomy, Institute of Neurobiology, Medical School of Nantong University, Nantong, Jiangsu, China; Co-Innovation Center of Neuroregeneration, Nantong University, Nantong, Jiangsu, China; Key Laboratory of Neuroregeneration of Jiangsu Province and Ministry of Education, Nantong University, Nantong, Jiangsu, China
| | - Xinhua Zhang
- Department of Human Anatomy, Institute of Neurobiology, Medical School of Nantong University, Nantong, Jiangsu, China; Co-Innovation Center of Neuroregeneration, Nantong University, Nantong, Jiangsu, China; Key Laboratory of Neuroregeneration of Jiangsu Province and Ministry of Education, Nantong University, Nantong, Jiangsu, China.
| | - Guohua Jin
- Department of Human Anatomy, Institute of Neurobiology, Medical School of Nantong University, Nantong, Jiangsu, China; Co-Innovation Center of Neuroregeneration, Nantong University, Nantong, Jiangsu, China; Key Laboratory of Neuroregeneration of Jiangsu Province and Ministry of Education, Nantong University, Nantong, Jiangsu, China.
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Verdile V, Svetoni F, La Rosa P, Ferrante G, Cesari E, Sette C, Paronetto M. EWS splicing regulation contributes to balancing Foxp1 isoforms required for neuronal differentiation. Nucleic Acids Res 2022; 50:3362-3378. [PMID: 35253879 PMCID: PMC8989529 DOI: 10.1093/nar/gkac154] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2021] [Revised: 01/27/2022] [Accepted: 02/23/2022] [Indexed: 11/13/2022] Open
Abstract
Alternative splicing is a key regulatory process underlying the amplification of genomic information and the expansion of proteomic diversity, particularly in brain. Here, we identify the Ewing sarcoma protein (EWS) as a new player of alternative splicing regulation during neuronal differentiation. Knockdown of EWS in neuronal progenitor cells leads to premature differentiation. Transcriptome profiling of EWS-depleted cells revealed global changes in splicing regulation. Bioinformatic analyses and biochemical experiments demonstrated that EWS regulates alternative exons in a position-dependent fashion. Notably, several EWS-regulated splicing events are physiologically modulated during neuronal differentiation and EWS depletion in neuronal precursors anticipates the splicing-pattern of mature neurons. Among other targets, we found that EWS controls the alternative splicing of the forkhead family transcription factor FOXP1, a pivotal transcriptional regulator of neuronal differentiation, possibly contributing to the switch of gene expression underlying the neuronal differentiation program.
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Affiliation(s)
- Veronica Verdile
- Department of Movement, Human and Health Sciences, University of Rome “Foro Italico”, Piazza Lauro de Bosis 6, 00135 Rome, Italy
- Laboratory of Molecular and Cellular Neurobiology, Fondazione Santa Lucia, Via del Fosso di Fiorano, 64, 00143 Rome, Italy
| | - Francesca Svetoni
- Laboratory of Molecular and Cellular Neurobiology, Fondazione Santa Lucia, Via del Fosso di Fiorano, 64, 00143 Rome, Italy
| | - Piergiorgio La Rosa
- Laboratory of Molecular and Cellular Neurobiology, Fondazione Santa Lucia, Via del Fosso di Fiorano, 64, 00143 Rome, Italy
| | - Gabriele Ferrante
- Laboratory of Molecular and Cellular Neurobiology, Fondazione Santa Lucia, Via del Fosso di Fiorano, 64, 00143 Rome, Italy
| | - Eleonora Cesari
- GSTEP-Organoids Core Facility, IRCCS Fondazione Policlinico Agostino Gemelli, 00168 Rome, Italy
| | - Claudio Sette
- GSTEP-Organoids Core Facility, IRCCS Fondazione Policlinico Agostino Gemelli, 00168 Rome, Italy
- Department of Neuroscience, Section of Human Anatomy, Catholic University of the Sacred Hearth, 00168 Rome, Italy
| | - Maria Paola Paronetto
- Department of Movement, Human and Health Sciences, University of Rome “Foro Italico”, Piazza Lauro de Bosis 6, 00135 Rome, Italy
- Laboratory of Molecular and Cellular Neurobiology, Fondazione Santa Lucia, Via del Fosso di Fiorano, 64, 00143 Rome, Italy
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24
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Sumoylation in Physiology, Pathology and Therapy. Cells 2022; 11:cells11050814. [PMID: 35269436 PMCID: PMC8909597 DOI: 10.3390/cells11050814] [Citation(s) in RCA: 23] [Impact Index Per Article: 11.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2022] [Revised: 02/22/2022] [Accepted: 02/23/2022] [Indexed: 02/04/2023] Open
Abstract
Sumoylation is an essential post-translational modification that has evolved to regulate intricate networks within emerging complexities of eukaryotic cells. Thousands of target substrates are modified by SUMO peptides, leading to changes in protein function, stability or localization, often by modulating interactions. At the cellular level, sumoylation functions as a key regulator of transcription, nuclear integrity, proliferation, senescence, lineage commitment and stemness. A growing number of prokaryotic and viral proteins are also emerging as prime sumoylation targets, highlighting the role of this modification during infection and in immune processes. Sumoylation also oversees epigenetic processes. Accordingly, at the physiological level, it acts as a crucial regulator of development. Yet, perhaps the most prominent function of sumoylation, from mammals to plants, is its role in orchestrating organismal responses to environmental stresses ranging from hypoxia to nutrient stress. Consequently, a growing list of pathological conditions, including cancer and neurodegeneration, have now been unambiguously associated with either aberrant sumoylation of specific proteins and/or dysregulated global cellular sumoylation. Therapeutic enforcement of sumoylation can also accomplish remarkable clinical responses in various diseases, notably acute promyelocytic leukemia (APL). In this review, we will discuss how this modification is emerging as a novel drug target, highlighting from the perspective of translational medicine, its potential and limitations.
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25
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Uzair M, Abualait T, Arshad M, Yoo WK, Mir A, Bunyan RF, Bashir S. Transcranial magnetic stimulation in animal models of neurodegeneration. Neural Regen Res 2022; 17:251-265. [PMID: 34269184 PMCID: PMC8464007 DOI: 10.4103/1673-5374.317962] [Citation(s) in RCA: 14] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2020] [Revised: 12/08/2020] [Accepted: 12/24/2020] [Indexed: 11/13/2022] Open
Abstract
Brain stimulation techniques offer powerful means of modulating the physiology of specific neural structures. In recent years, non-invasive brain stimulation techniques, such as transcranial magnetic stimulation (TMS) and transcranial direct current stimulation, have emerged as therapeutic tools for neurology and neuroscience. However, the possible repercussions of these techniques remain unclear, and there are few reports on the incisive recovery mechanisms through brain stimulation. Although several studies have recommended the use of non-invasive brain stimulation in clinical neuroscience, with a special emphasis on TMS, the suggested mechanisms of action have not been confirmed directly at the neural level. Insights into the neural mechanisms of non-invasive brain stimulation would unveil the strategies necessary to enhance the safety and efficacy of this progressive approach. Therefore, animal studies investigating the mechanisms of TMS-induced recovery at the neural level are crucial for the elaboration of non-invasive brain stimulation. Translational research done using animal models has several advantages and is able to investigate knowledge gaps by directly targeting neuronal levels. In this review, we have discussed the role of TMS in different animal models, the impact of animal studies on various disease states, and the findings regarding brain function of animal models after TMS in pharmacology research.
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Affiliation(s)
- Mohammad Uzair
- Department of Biological Sciences, Faculty of Basic & Applied Sciences, International Islamic University Islamabad, Pakistan
| | - Turki Abualait
- College of Applied Medical Sciences, Imam Abdulrahman Bin Faisal University, Dammam, Saudi Arabia
| | - Muhammad Arshad
- Department of Biological Sciences, Faculty of Basic & Applied Sciences, International Islamic University Islamabad, Pakistan
| | - Woo-Kyoung Yoo
- Department of Physical Medicine and Rehabilitation, Hallym University College of Medicine, Anyang, South Korea
- Hallym Institute for Translational Genomics & Bioinformatics, Hallym University College of Medicine, Anyang, South Korea
| | - Ali Mir
- Neuroscience Center, King Fahad Specialist Hospital Dammam, Dammam, Saudi Arabia
| | - Reem Fahd Bunyan
- Neuroscience Center, King Fahad Specialist Hospital Dammam, Dammam, Saudi Arabia
| | - Shahid Bashir
- Neuroscience Center, King Fahad Specialist Hospital Dammam, Dammam, Saudi Arabia
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26
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Ozgun A, Lomboni D, Arnott H, Staines WA, Woulfe J, Variola F. Biomaterial-based strategies for in vitro neural models. Biomater Sci 2022; 10:1134-1165. [PMID: 35023513 DOI: 10.1039/d1bm01361k] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
In vitro models have been used as a complementary tool to animal studies in understanding the nervous system's physiological mechanisms and pathological disorders, while also serving as platforms to evaluate the safety and efficiency of therapeutic candidates. Following recent advances in materials science, micro- and nanofabrication techniques and cell culture systems, in vitro technologies have been rapidly gaining the potential to bridge the gap between animal and clinical studies by providing more sophisticated models that recapitulate key aspects of the structure, biochemistry, biomechanics, and functions of human tissues. This was made possible, in large part, by the development of biomaterials that provide cells with physicochemical features that closely mimic the cellular microenvironment of native tissues. Due to the well-known material-driven cellular response and the importance of mimicking the environment of the target tissue, the selection of optimal biomaterials represents an important early step in the design of biomimetic systems to investigate brain structures and functions. This review provides a comprehensive compendium of commonly used biomaterials as well as the different fabrication techniques employed for the design of neural tissue models. Furthermore, the authors discuss the main parameters that need to be considered to develop functional platforms not only for the study of brain physiological functions and pathological processes but also for drug discovery/development and the optimization of biomaterials for neural tissue engineering.
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Affiliation(s)
- Alp Ozgun
- Department of Mechanical Engineering, Faculty of Engineering, University of Ottawa, Ottawa, Canada. .,Department of Cellular and Molecular Medicine, Faculty of Medicine, University of Ottawa, Ottawa, Canada
| | - David Lomboni
- Department of Mechanical Engineering, Faculty of Engineering, University of Ottawa, Ottawa, Canada. .,Ottawa-Carleton Institute for Biomedical Engineering (OCIBME), Ottawa, Canada
| | - Hallie Arnott
- Department of Mechanical Engineering, Faculty of Engineering, University of Ottawa, Ottawa, Canada. .,Ottawa-Carleton Institute for Biomedical Engineering (OCIBME), Ottawa, Canada
| | - William A Staines
- Department of Cellular and Molecular Medicine, Faculty of Medicine, University of Ottawa, Ottawa, Canada
| | - John Woulfe
- Department of Cellular and Molecular Medicine, Faculty of Medicine, University of Ottawa, Ottawa, Canada.,The Ottawa Hospital, Ottawa, Canada
| | - Fabio Variola
- Department of Mechanical Engineering, Faculty of Engineering, University of Ottawa, Ottawa, Canada. .,Department of Cellular and Molecular Medicine, Faculty of Medicine, University of Ottawa, Ottawa, Canada.,Ottawa-Carleton Institute for Biomedical Engineering (OCIBME), Ottawa, Canada.,The Ottawa Hospital, Ottawa, Canada.,Children's Hospital of Eastern Ontario (CHEO), Ottawa, Canada
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27
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Filippelli RL, Kamyabiazar S, Chang NC. Monitoring Autophagy in Neural Stem and Progenitor Cells. Methods Mol Biol 2022; 2515:99-116. [PMID: 35776348 DOI: 10.1007/978-1-0716-2409-8_7] [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] [Indexed: 06/15/2023]
Abstract
Autophagy is a critical cellular program that is necessary for cellular survival and adaptation to nutrient and metabolic stress. In addition to homeostatic maintenance and adaptive response functions, autophagy also plays an active role during development and tissue regeneration. Within the neural system, autophagy is important for stem cell maintenance and the ability of neural stem cells to undergo self-renewal. Autophagy also contributes toward neurogenesis and provides neural progenitor cells with sufficient energy to mediate cytoskeleton remodeling during the differentiation process. In differentiated neural cells, autophagy maintains neuronal homeostasis and viability by preventing the accumulation of toxic and pathological intracellular aggregates. However, prolonged autophagy or dysregulated upregulation of autophagy can result in autophagic cell death. Moreover, mutations or defects in autophagy that result in neural stem cell instability and cell death underlie many neurodegenerative disorders, such as Parkinson's disease. Thus, autophagy plays a multi-faceted role during neurogenesis from the stem cell to the differentiated neural cell. In this chapter, we describe methods to monitor autophagy at the protein and transcript level to evaluate alterations within the autophagy program in neural stem and progenitor cells. We describe immunoblotting and immunocytochemistry approaches for evaluating autophagy-dependent protein modifications, as well as quantitative real-time PCR to assess transcript levels of autophagy genes. As autophagy is a dynamic process, we highlight the importance of using late-stage inhibitors to be able to assess autophagic flux and quantify the level of autophagy occurring within cells.
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Affiliation(s)
- Romina L Filippelli
- Department of Biochemistry, Faculty of Medicine and Health Sciences, McGill University, Montréal, QC, Canada
| | - Samaneh Kamyabiazar
- Department of Biochemistry, Faculty of Medicine and Health Sciences, McGill University, Montréal, QC, Canada
| | - Natasha C Chang
- Department of Biochemistry, Faculty of Medicine and Health Sciences, McGill University, Montréal, QC, Canada.
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28
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Yu H, Commander CW, Stavas JM. Stem Cell-Based Therapies: What Interventional Radiologists Need to Know. Semin Intervent Radiol 2021; 38:523-534. [PMID: 34853498 DOI: 10.1055/s-0041-1736657] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Abstract
As the basic units of biological organization, stem cells and their progenitors are essential for developing and regenerating organs and tissue systems using their unique self-renewal capability and differentiation potential into multiple cell lineages. Stem cells are consistently present throughout the entire human development, from the zygote to adulthood. Over the past decades, significant efforts have been made in biology, genetics, and biotechnology to develop stem cell-based therapies using embryonic and adult autologous or allogeneic stem cells for diseases without therapies or difficult to treat. Stem cell-based therapies require optimum administration of stem cells into damaged organs to promote structural regeneration and improve function. Maximum clinical efficacy is highly dependent on the successful delivery of stem cells to the target tissue. Direct image-guided locoregional injections into target tissues offer an option to increase therapeutic outcomes. Interventional radiologists have the opportunity to perform a key role in delivering stem cells more efficiently using minimally invasive techniques. This review discusses the types and sources of stem cells and the current clinical applications of stem cell-based therapies. In addition, the regulatory considerations, logistics, and potential roles of interventional Radiology are also discussed with the review of the literature.
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Affiliation(s)
- Hyeon Yu
- Division of Vascular and Interventional Radiology, Department of Radiology, University of North Carolina School of Medicine, Chapel Hill, North Carolina.,ProKidney LLC, Winston Salem, North Carolina
| | - Clayton W Commander
- Division of Vascular and Interventional Radiology, Department of Radiology, University of North Carolina School of Medicine, Chapel Hill, North Carolina
| | - Joseph M Stavas
- Department of Radiology, Creighton University School of Medicine, Omaha, Nebraska
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29
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Niari SA, Rahbarghazi R, Geranmayeh MH, Karimipour M. Biomaterials patterning regulates neural stem cells fate and behavior: The interface of biology and material science. J Biomed Mater Res A 2021; 110:725-737. [PMID: 34751503 DOI: 10.1002/jbm.a.37321] [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: 04/12/2021] [Revised: 09/19/2021] [Accepted: 10/06/2021] [Indexed: 11/12/2022]
Abstract
The combination of nanotechnology and stem cell biology is one of the most promising advances in the field of regenerative medicine. This novel combination has widely been utilized in vitro settings in an attempt to develop efficient therapeutic strategies to overcome the limited capacity of the central nervous system (CNS) in replacing degenerating neural cells with functionally normal cells after the onset of acute and chronic neurological disorders. Importantly, biomaterials, not only, enhance the endogenous CNS neurogenesis and plasticity, but also, could provide a desirable supportive microenvironment to harness the full potential of the in vitro expanded neural stem cells (NSCs) for regenerative purposes. Here, first, we discuss how the physical and biochemical properties of biomaterials, such as their stiffness and elasticity, could influence the behavior of NSCs. Then, since the NSCs niche or microenvironment is of fundamental importance in controlling the dynamic destiny of NSCs such as their quiescent and proliferative states, topographical effects of surface diversity in biomaterials, that is, the micro-and nano-patterned surfaces will be discussed in detail. Finally, the influence of biomaterials as artificial microenvironments on the behavior of NSCs through the specific mechanotransduction signaling pathway mediated by focal adhesion formation will be reviewed.
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Affiliation(s)
- Shabnam Asghari Niari
- Stem Cell Research Center, Tabriz University of Medical Sciences, Tabriz, Iran.,Department of Anatomical Sciences, Faculty of Medicine, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Reza Rahbarghazi
- Stem Cell Research Center, Tabriz University of Medical Sciences, Tabriz, Iran.,Department of Applied Cell Sciences, Faculty of Advanced Medical Sciences, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Mohammad Hossein Geranmayeh
- Research Center for Pharmaceutical Nanotechnology, Biomedicine Institute, Tabriz University of Medical Sciences, Tabriz, Iran.,Neurosciences Research Center (NSRC), Imam Reza Medical Center, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Mohammad Karimipour
- Stem Cell Research Center, Tabriz University of Medical Sciences, Tabriz, Iran.,Department of Anatomical Sciences, Faculty of Medicine, Tabriz University of Medical Sciences, Tabriz, Iran.,Department of Applied Cell Sciences, Faculty of Advanced Medical Sciences, Tabriz University of Medical Sciences, Tabriz, Iran
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30
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Sundaravadivelu PK, Raina K, Thool M, Ray A, Joshi JM, Kaveeshwar V, Sudhagar S, Lenka N, Thummer RP. Tissue-Restricted Stem Cells as Starting Cell Source for Efficient Generation of Pluripotent Stem Cells: An Overview. ADVANCES IN EXPERIMENTAL MEDICINE AND BIOLOGY 2021; 1376:151-180. [PMID: 34611861 DOI: 10.1007/5584_2021_660] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Induced pluripotent stem cells (iPSCs) have vast biomedical potential concerning disease modeling, drug screening and discovery, cell therapy, tissue engineering, and understanding organismal development. In the year 2006, a groundbreaking study reported the generation of iPSCs from mouse embryonic fibroblasts by viral transduction of four transcription factors, namely, Oct4, Sox2, Klf4, and c-Myc. Subsequently, human iPSCs were generated by reprogramming fibroblasts as a starting cell source using two reprogramming factor cocktails [(i) OCT4, SOX2, KLF4, and c-MYC, and (ii) OCT4, SOX2, NANOG, and LIN28]. The wide range of applications of these human iPSCs in research, therapeutics, and personalized medicine has driven the scientific community to optimize and understand this reprogramming process to achieve quality iPSCs with higher efficiency and faster kinetics. One of the essential criteria to address this is by identifying an ideal cell source in which pluripotency can be induced efficiently to give rise to high-quality iPSCs. Therefore, various cell types have been studied for their ability to generate iPSCs efficiently. Cell sources that can be easily reverted to a pluripotent state are tissue-restricted stem cells present in the fetus and adult tissues. Tissue-restricted stem cells can be isolated from fetal, cord blood, bone marrow, and other adult tissues or can be obtained by differentiation of embryonic stem cells or trans-differentiation of other tissue-restricted stem cells. Since these cells are undifferentiated cells with self-renewal potential, they are much easier to reprogram due to the inherent characteristic of having an endogenous expression of few pluripotency-inducing factors. This review presents an overview of promising tissue-restricted stem cells that can be isolated from different sources, namely, neural stem cells, hematopoietic stem cells, mesenchymal stem cells, limbal epithelial stem cells, and spermatogonial stem cells, and their reprogramming efficacy. This insight will pave the way for developing safe and efficient reprogramming strategies and generating patient-specific iPSCs from tissue-restricted stem cells derived from various fetal and adult tissues.
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Affiliation(s)
- Pradeep Kumar Sundaravadivelu
- Laboratory for Stem Cell Engineering and Regenerative Medicine, Department of Biosciences and Bioengineering, Indian Institute of Technology Guwahati, Guwahati, Assam, India
| | - Khyati Raina
- Laboratory for Stem Cell Engineering and Regenerative Medicine, Department of Biosciences and Bioengineering, Indian Institute of Technology Guwahati, Guwahati, Assam, India
| | - Madhuri Thool
- Laboratory for Stem Cell Engineering and Regenerative Medicine, Department of Biosciences and Bioengineering, Indian Institute of Technology Guwahati, Guwahati, Assam, India.,Department of Biotechnology, National Institute of Pharmaceutical Education and Research Guwahati, Changsari, Guwahati, Assam, India
| | - Arnab Ray
- Laboratory for Stem Cell Engineering and Regenerative Medicine, Department of Biosciences and Bioengineering, Indian Institute of Technology Guwahati, Guwahati, Assam, India
| | - Jahnavy Madhukar Joshi
- Central Research Laboratory, SDM College of Medical Sciences and Hospital, Shri Dharmasthala Manjunatheshwara University, Dharwad, Karnataka, India
| | - Vishwas Kaveeshwar
- Central Research Laboratory, SDM College of Medical Sciences and Hospital, Shri Dharmasthala Manjunatheshwara University, Dharwad, Karnataka, India
| | - S Sudhagar
- Department of Biotechnology, National Institute of Pharmaceutical Education and Research Guwahati, Changsari, Guwahati, Assam, India
| | - Nibedita Lenka
- National Centre for Cell Science, S. P. Pune University Campus, Ganeshkhind, Pune, Maharashtra, India.
| | - Rajkumar P Thummer
- Laboratory for Stem Cell Engineering and Regenerative Medicine, Department of Biosciences and Bioengineering, Indian Institute of Technology Guwahati, Guwahati, Assam, India.
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31
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Mahadewa TGB, Mardhika PE, Awyono S, Putra MB, Saapang GS, Wiyanjana KDF, Putra KK, Natakusuma TISD, Ryalino C. Mesenteric Neural Stem Cell for Chronic Spinal Cord Injury: A Literature Review. Open Access Maced J Med Sci 2021. [DOI: 10.3889/oamjms.2021.6653] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022] Open
Abstract
Spinal cord injury (SCI) is a common and potentially life-threatening condition with no established treatment to treat the primary injury. Mesenteric neural stem cell (NSC) therapy is a promising stem cell therapy to treat primary SCI in the chronic phase. We aimed to review the literature narratively to describe current evidence regarding mesenteric NSC in SCI. Primary SCI refers to tissue damage that occurs at the time of trauma that leads to the death of neuronal cells. In chronic SCI, the ability of neuronal regeneration is compromised by the development of gliotic scar. NSC is a stem cell therapy that targeted SCI in the chronic phase. Enteric NSC is one of the sources of NSC, and autologous gut harvesting in the appendix using endoscopic surgery provides a more straightforward and low-risk procedure. Intramedullary transplantation of stem cell with ultrasound guiding is administration technique which offers long-term regeneration. Mesenteric NSC is a promising stem cell therapy to treat chronic SCI with low risk and easier procedure to isolate cells compared to other NSC sources.
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32
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Jalink P, Caiazzo M. Brain Organoids: Filling the Need for a Human Model of Neurological Disorder. BIOLOGY 2021; 10:740. [PMID: 34439972 PMCID: PMC8389592 DOI: 10.3390/biology10080740] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/05/2021] [Revised: 07/25/2021] [Accepted: 07/26/2021] [Indexed: 02/06/2023]
Abstract
Neurological disorders are among the leading causes of death worldwide, accounting for almost all onsets of dementia in the elderly, and are known to negatively affect motor ability, mental and cognitive performance, as well as overall wellbeing and happiness. Currently, most neurological disorders go untreated due to a lack of viable treatment options. The reason for this lack of options is s poor understanding of the disorders, primarily due to research models that do not translate well into the human in vivo system. Current models for researching neurological disorders, neurodevelopment, and drug interactions in the central nervous system include in vitro monolayer cell cultures, and in vivo animal models. These models have shortcomings when it comes to translating research about disorder pathology, development, and treatment to humans. Brain organoids are three-dimensional (3D) cultures of stem cell-derived neural cells that mimic the development of the in vivo human brain with high degrees of accuracy. Researchers have started developing these miniature brains to model neurodevelopment, and neuropathology. Brain organoids have been used to model a wide range of neurological disorders, including the complex and poorly understood neurodevelopmental and neurodegenerative disorders. In this review, we discuss the brain organoid technology, placing special focus on the different brain organoid models that have been developed, discussing their strengths, weaknesses, and uses in neurological disease modeling.
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Affiliation(s)
- Philip Jalink
- Department of Pharmaceutics, Utrecht Institute for Pharmaceutical Sciences (UIPS), Faculty of Science, Utrecht University, Universiteitsweg 99, CG 3584 Utrecht, The Netherlands;
| | - Massimiliano Caiazzo
- Department of Pharmaceutics, Utrecht Institute for Pharmaceutical Sciences (UIPS), Faculty of Science, Utrecht University, Universiteitsweg 99, CG 3584 Utrecht, The Netherlands;
- Department of Molecular Medicine and Medical Biotechnology, University of Naples Federico II, Via S. Pansini 5, 80131 Naples, Italy
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33
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Kamte YS, Chandwani MN, Michaels AC, O’Donnell LA. Neural Stem Cells: What Happens When They Go Viral? Viruses 2021; 13:v13081468. [PMID: 34452333 PMCID: PMC8402908 DOI: 10.3390/v13081468] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2021] [Revised: 06/22/2021] [Accepted: 06/28/2021] [Indexed: 12/25/2022] Open
Abstract
Viruses that infect the central nervous system (CNS) are associated with developmental abnormalities as well as neuropsychiatric and degenerative conditions. Many of these viruses such as Zika virus (ZIKV), cytomegalovirus (CMV), and herpes simplex virus (HSV) demonstrate tropism for neural stem cells (NSCs). NSCs are the multipotent progenitor cells of the brain that have the ability to form neurons, astrocytes, and oligodendrocytes. Viral infections often alter the function of NSCs, with profound impacts on the growth and repair of the brain. There are a wide spectrum of effects on NSCs, which differ by the type of virus, the model system, the cell types studied, and the age of the host. Thus, it is a challenge to predict and define the consequences of interactions between viruses and NSCs. The purpose of this review is to dissect the mechanisms by which viruses can affect survival, proliferation, and differentiation of NSCs. This review also sheds light on the contribution of key antiviral cytokines in the impairment of NSC activity during a viral infection, revealing a complex interplay between NSCs, viruses, and the immune system.
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34
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Divisato G, Piscitelli S, Elia M, Cascone E, Parisi S. MicroRNAs and Stem-like Properties: The Complex Regulation Underlying Stemness Maintenance and Cancer Development. Biomolecules 2021; 11:biom11081074. [PMID: 34439740 PMCID: PMC8393604 DOI: 10.3390/biom11081074] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2021] [Revised: 07/13/2021] [Accepted: 07/19/2021] [Indexed: 12/12/2022] Open
Abstract
Embryonic stem cells (ESCs) have the extraordinary properties to indefinitely proliferate and self-renew in culture to produce different cell progeny through differentiation. This latter process recapitulates embryonic development and requires rounds of the epithelial-mesenchymal transition (EMT). EMT is characterized by the loss of the epithelial features and the acquisition of the typical phenotype of the mesenchymal cells. In pathological conditions, EMT can confer stemness or stem-like phenotypes, playing a role in the tumorigenic process. Cancer stem cells (CSCs) represent a subpopulation, found in the tumor tissues, with stem-like properties such as uncontrolled proliferation, self-renewal, and ability to differentiate into different cell types. ESCs and CSCs share numerous features (pluripotency, self-renewal, expression of stemness genes, and acquisition of epithelial-mesenchymal features), and most of them are under the control of microRNAs (miRNAs). These small molecules have relevant roles during both embryogenesis and cancer development. The aim of this review was to recapitulate molecular mechanisms shared by ESCs and CSCs, with a special focus on the recently identified classes of microRNAs (noncanonical miRNAs, mirtrons, isomiRs, and competitive endogenous miRNAs) and their complex functions during embryogenesis and cancer development.
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Smith JA, Nicaise AM, Ionescu RB, Hamel R, Peruzzotti-Jametti L, Pluchino S. Stem Cell Therapies for Progressive Multiple Sclerosis. Front Cell Dev Biol 2021; 9:696434. [PMID: 34307372 PMCID: PMC8299560 DOI: 10.3389/fcell.2021.696434] [Citation(s) in RCA: 24] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2021] [Accepted: 06/10/2021] [Indexed: 12/19/2022] Open
Abstract
Multiple sclerosis (MS) is a chronic inflammatory disease of the central nervous system characterized by demyelination and axonal degeneration. MS patients typically present with a relapsing-remitting (RR) disease course, manifesting as sporadic attacks of neurological symptoms including ataxia, fatigue, and sensory impairment. While there are several effective disease-modifying therapies able to address the inflammatory relapses associated with RRMS, most patients will inevitably advance to a progressive disease course marked by a gradual and irreversible accrual of disabilities. Therapeutic intervention in progressive MS (PMS) suffers from a lack of well-characterized biological targets and, hence, a dearth of successful drugs. The few medications approved for the treatment of PMS are typically limited in their efficacy to active forms of the disease, have little impact on slowing degeneration, and fail to promote repair. In looking to address these unmet needs, the multifactorial therapeutic benefits of stem cell therapies are particularly compelling. Ostensibly providing neurotrophic support, immunomodulation and cell replacement, stem cell transplantation holds substantial promise in combatting the complex pathology of chronic neuroinflammation. Herein, we explore the current state of preclinical and clinical evidence supporting the use of stem cells in treating PMS and we discuss prospective hurdles impeding their translation into revolutionary regenerative medicines.
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Affiliation(s)
- Jayden A. Smith
- Cambridge Innovation Technologies Consulting (CITC) Limited, Cambridge, United Kingdom
| | - Alexandra M. Nicaise
- Department of Clinical Neurosciences and National Institute for Health Research (NIHR) Biomedical Research Centre, University of Cambridge, Cambridge, United Kingdom
| | - Rosana-Bristena Ionescu
- Department of Clinical Neurosciences and National Institute for Health Research (NIHR) Biomedical Research Centre, University of Cambridge, Cambridge, United Kingdom
| | - Regan Hamel
- Department of Clinical Neurosciences and National Institute for Health Research (NIHR) Biomedical Research Centre, University of Cambridge, Cambridge, United Kingdom
| | - Luca Peruzzotti-Jametti
- Department of Clinical Neurosciences and National Institute for Health Research (NIHR) Biomedical Research Centre, University of Cambridge, Cambridge, United Kingdom
| | - Stefano Pluchino
- Department of Clinical Neurosciences and National Institute for Health Research (NIHR) Biomedical Research Centre, University of Cambridge, Cambridge, United Kingdom
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Oxidative-Signaling in Neural Stem Cell-Mediated Plasticity: Implications for Neurodegenerative Diseases. Antioxidants (Basel) 2021; 10:antiox10071088. [PMID: 34356321 PMCID: PMC8301193 DOI: 10.3390/antiox10071088] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2021] [Revised: 06/30/2021] [Accepted: 07/01/2021] [Indexed: 12/18/2022] Open
Abstract
The adult mammalian brain is capable of generating new neurons from existing neural stem cells (NSCs) in a process called adult neurogenesis. This process, which is critical for sustaining cognition and mental health in the mature brain, can be severely hampered with ageing and different neurological disorders. Recently, it is believed that the beneficial effects of NSCs in the injured brain relies not only on their potential to differentiate and integrate into the preexisting network, but also on their secreted molecules. In fact, further insight into adult NSC function is being gained, pointing to these cells as powerful endogenous "factories" that produce and secrete a large range of bioactive molecules with therapeutic properties. Beyond anti-inflammatory, neurogenic and neurotrophic effects, NSC-derived secretome has antioxidant proprieties that prevent mitochondrial dysfunction and rescue recipient cells from oxidative damage. This is particularly important in neurodegenerative contexts, where oxidative stress and mitochondrial dysfunction play a significant role. In this review, we discuss the current knowledge and the therapeutic opportunities of NSC secretome for neurodegenerative diseases with a particular focus on mitochondria and its oxidative state.
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Johansson C, Kirsebom FCM. Neutrophils in respiratory viral infections. Mucosal Immunol 2021; 14:815-827. [PMID: 33758367 PMCID: PMC7985581 DOI: 10.1038/s41385-021-00397-4] [Citation(s) in RCA: 52] [Impact Index Per Article: 17.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2020] [Revised: 11/16/2020] [Accepted: 11/18/2020] [Indexed: 02/04/2023]
Abstract
Viral respiratory infections are a common cause of severe disease, especially in infants, people who are immunocompromised, and in the elderly. Neutrophils, an important innate immune cell, infiltrate the lungs rapidly after an inflammatory insult. The most well-characterized effector mechanisms by which neutrophils contribute to host defense are largely extracellular and the involvement of neutrophils in protection from numerous bacterial and fungal infections is well established. However, the role of neutrophils in responses to viruses, which replicate intracellularly, has been less studied. It remains unclear whether and, by which underlying immunological mechanisms, neutrophils contribute to viral control or confer protection against an intracellular pathogen. Furthermore, neutrophils need to be tightly regulated to avoid bystander damage to host tissues. This is especially relevant in the lung where damage to delicate alveolar structures can compromise gas exchange with life-threatening consequences. It is inherently less clear how neutrophils can contribute to host immunity to viruses without causing immunopathology and/or exacerbating disease severity. In this review, we summarize and discuss the current understanding of how neutrophils in the lung direct immune responses to viruses, control viral replication and spread, and cause pathology during respiratory viral infections.
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Affiliation(s)
- Cecilia Johansson
- National Heart and Lung Institute, Imperial College London, London, UK.
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38
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Angelopoulou E, Paudel YN, Piperi C. Role of Liver Growth Factor (LGF) in Parkinson's Disease: Molecular Insights and Therapeutic Opportunities. Mol Neurobiol 2021; 58:3031-3042. [PMID: 33608826 DOI: 10.1007/s12035-021-02326-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2020] [Accepted: 02/09/2021] [Indexed: 11/26/2022]
Abstract
Parkinson's disease is the most common neurodegenerative movement disorder with unclear etiology and only symptomatic treatment to date. Toward the development of novel disease-modifying agents, neurotrophic factors represent a reasonable and promising therapeutic approach. However, despite the robust preclinical evidence, clinical trials using glial-derived neurotrophic factor (GDNF) and neurturin have been unsuccessful. In this direction, the therapeutic potential of other trophic factors in PD and the elucidation of the underlying molecular mechanisms are of paramount importance. The liver growth factor (LGF) is an albumin-bilirubin complex acting as a hepatic mitogen, which also exerts regenerative effects on several extrahepatic tissues including the brain. Accumulating evidence suggests that intracerebral and peripheral administration of LGF can enhance the outgrowth of nigrostriatal dopaminergic axonal terminals; promote the survival, migration, and differentiation of neuronal stem cells; and partially protect against dopaminergic neuronal loss in the substantia nigra of PD animal models. In most studies, these effects are accompanied by improved motor behavior of the animals. Potential underlying mechanisms involve transient microglial activation, TNF-α upregulation, and activation of the extracellular signal-regulated kinases 1/2 (ERK1/2) and of the transcription factor cyclic AMP response-element binding protein (CREB), along with anti-inflammatory and antioxidant pathways. Herein, we summarize recent preclinical evidence on the potential role of LGF in PD pathogenesis, aiming to shed more light on the underlying molecular mechanisms and reveal novel therapeutic opportunities for this debilitating disease.
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Affiliation(s)
- Efthalia Angelopoulou
- Department of Biological Chemistry, Medical School, National and Kapodistrian University of Athens, Athens, Greece
| | - Yam Nath Paudel
- Neuropharmacology Research Laboratory, Jeffrey Cheah School of Medicine and Health Sciences, Monash University Malaysia, Bandar Sunway, Selangor, Malaysia
| | - Christina Piperi
- Department of Biological Chemistry, Medical School, National and Kapodistrian University of Athens, Athens, Greece.
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Desole C, Gallo S, Vitacolonna A, Montarolo F, Bertolotto A, Vivien D, Comoglio P, Crepaldi T. HGF and MET: From Brain Development to Neurological Disorders. Front Cell Dev Biol 2021; 9:683609. [PMID: 34179015 PMCID: PMC8220160 DOI: 10.3389/fcell.2021.683609] [Citation(s) in RCA: 40] [Impact Index Per Article: 13.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2021] [Accepted: 04/30/2021] [Indexed: 12/22/2022] Open
Abstract
Hepatocyte growth factor (HGF) and its tyrosine kinase receptor, encoded by the MET cellular proto-oncogene, are expressed in the nervous system from pre-natal development to adult life, where they are involved in neuronal growth and survival. In this review, we highlight, beyond the neurotrophic action, novel roles of HGF-MET in synaptogenesis during post-natal brain development and the connection between deregulation of MET expression and developmental disorders such as autism spectrum disorder (ASD). On the pharmacology side, HGF-induced MET activation exerts beneficial neuroprotective effects also in adulthood, specifically in neurodegenerative disease, and in preclinical models of cerebral ischemia, spinal cord injuries, and neurological pathologies, such as Alzheimer’s disease (AD), amyotrophic lateral sclerosis (ALS), and multiple sclerosis (MS). HGF is a key factor preventing neuronal death and promoting survival through pro-angiogenic, anti-inflammatory, and immune-modulatory mechanisms. Recent evidence suggests that HGF acts on neural stem cells to enhance neuroregeneration. The possible therapeutic application of HGF and HGF mimetics for the treatment of neurological disorders is discussed.
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Affiliation(s)
- Claudia Desole
- Department of Oncology, University of Turin, Turin, Italy.,Candiolo Cancer Institute, FPO-IRCCS, Candiolo, Italy
| | - Simona Gallo
- Department of Oncology, University of Turin, Turin, Italy.,Candiolo Cancer Institute, FPO-IRCCS, Candiolo, Italy
| | - Annapia Vitacolonna
- Department of Oncology, University of Turin, Turin, Italy.,Candiolo Cancer Institute, FPO-IRCCS, Candiolo, Italy
| | - Francesca Montarolo
- Neuroscience Institute Cavalieri Ottolenghi, Orbassano, Italy.,Neurobiology Unit, Neurology, CReSM (Regional Referring Center of Multiple Sclerosis), San Luigi Gonzaga University Hospital, Orbassano, Italy.,Department of Molecular Biotechnology and Health Sciences, University of Turin, Turin, Italy
| | - Antonio Bertolotto
- Neuroscience Institute Cavalieri Ottolenghi, Orbassano, Italy.,Neurobiology Unit, Neurology, CReSM (Regional Referring Center of Multiple Sclerosis), San Luigi Gonzaga University Hospital, Orbassano, Italy
| | - Denis Vivien
- INSERM U1237, University of Caen, Gyp Cyceron, Caen, France.,Department of Clinical Research, Caen-Normandie University Hospital, Caen, France
| | - Paolo Comoglio
- IFOM, FIRC Institute for Molecular Oncology, Milan, Italy
| | - Tiziana Crepaldi
- Department of Oncology, University of Turin, Turin, Italy.,Candiolo Cancer Institute, FPO-IRCCS, Candiolo, Italy
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40
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He R, Dantas A, Riabowol K. Histone Acetyltransferases and Stem Cell Identity. Cancers (Basel) 2021; 13:2407. [PMID: 34067525 PMCID: PMC8156521 DOI: 10.3390/cancers13102407] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2021] [Revised: 05/02/2021] [Accepted: 05/05/2021] [Indexed: 12/13/2022] Open
Abstract
Acetylation of histones is a key epigenetic modification involved in transcriptional regulation. The addition of acetyl groups to histone tails generally reduces histone-DNA interactions in the nucleosome leading to increased accessibility for transcription factors and core transcriptional machinery to bind their target sequences. There are approximately 30 histone acetyltransferases and their corresponding complexes, each of which affect the expression of a subset of genes. Because cell identity is determined by gene expression profile, it is unsurprising that the HATs responsible for inducing expression of these genes play a crucial role in determining cell fate. Here, we explore the role of HATs in the maintenance and differentiation of various stem cell types. Several HAT complexes have been characterized to play an important role in activating genes that allow stem cells to self-renew. Knockdown or loss of their activity leads to reduced expression and or differentiation while particular HATs drive differentiation towards specific cell fates. In this study we review functions of the HAT complexes active in pluripotent stem cells, hematopoietic stem cells, muscle satellite cells, mesenchymal stem cells, neural stem cells, and cancer stem cells.
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Affiliation(s)
- Ruicen He
- Arnie Charbonneau Cancer Institute, Cumming School of Medicine, University of Calgary, Calgary, AB T2N 4N1, Canada; (R.H.); (A.D.)
- Department of Molecular Genetics, Temerty School of Medicine, University of Toronto, Toronto, ON M5S 1A8, Canada
| | - Arthur Dantas
- Arnie Charbonneau Cancer Institute, Cumming School of Medicine, University of Calgary, Calgary, AB T2N 4N1, Canada; (R.H.); (A.D.)
- Department of Biochemistry and Molecular Biology, Cumming School of Medicine, University of Calgary, Calgary, AB T2N 4N1, Canada
| | - Karl Riabowol
- Arnie Charbonneau Cancer Institute, Cumming School of Medicine, University of Calgary, Calgary, AB T2N 4N1, Canada; (R.H.); (A.D.)
- Department of Biochemistry and Molecular Biology, Cumming School of Medicine, University of Calgary, Calgary, AB T2N 4N1, Canada
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41
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Extracellular vesicles isolated from mesenchymal stromal cells primed with neurotrophic factors and signaling modifiers as potential therapeutics for neurodegenerative diseases. Curr Res Transl Med 2021; 69:103286. [DOI: 10.1016/j.retram.2021.103286] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2020] [Revised: 02/10/2021] [Accepted: 03/01/2021] [Indexed: 12/17/2022]
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Towards Tissue-Specific Stem Cell Therapy for the Intervertebral Disc: PPARδ Agonist Increases the Yield of Human Nucleus Pulposus Progenitor Cells in Expansion. SURGERIES 2021. [DOI: 10.3390/surgeries2010008] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
Abstract
(1) Background: Low back pain (LBP) is often associated with intervertebral disc degeneration (IVDD). Autochthonous progenitor cells isolated from the center, i.e., the nucleus pulposus, of the IVD (so-called nucleus pulposus progenitor cells (NPPCs)) could be a future cell source for therapy. The NPPCs were also identified to be positive for the angiopoietin-1 receptor (Tie2). Similar to hematopoietic stem cells, Tie2 might be involved in peroxisome proliferator-activated receptor delta (PPARδ) agonist-induced self-renewal regulation. The purpose of this study was to investigate whether a PPARδ agonist (GW501516) increases the Tie2+ NPPCs’ yield within the heterogeneous nucleus pulposus cell (NPC) population. (2) Methods: Primary NPCs were treated with 10 µM of GW501516 for eight days. Mitochondrial mass was determined by microscopy, using mitotracker red dye, and the relative gene expression was quantified by qPCR, using extracellular matrix and mitophagy-related genes. (3) The NPC’s group treated with the PPARδ agonist showed a significant increase of the Tie2+ NPCs yield from ~7% in passage 1 to ~50% in passage two, compared to the NPCs vehicle-treated group. Furthermore, no significant differences were found among treatment and control, using qPCR and mitotracker deep red. (4) Conclusion: PPARδ agonist could help to increase the Tie2+ NPCs yield during NPC expansion.
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Perrier S, Michell-Robinson MA, Bernard G. POLR3-Related Leukodystrophy: Exploring Potential Therapeutic Approaches. Front Cell Neurosci 2021; 14:631802. [PMID: 33633543 PMCID: PMC7902007 DOI: 10.3389/fncel.2020.631802] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2020] [Accepted: 12/28/2020] [Indexed: 12/19/2022] Open
Abstract
Leukodystrophies are a class of rare inherited central nervous system (CNS) disorders that affect the white matter of the brain, typically leading to progressive neurodegeneration and early death. Hypomyelinating leukodystrophies are characterized by the abnormal formation of the myelin sheath during development. POLR3-related or 4H (hypomyelination, hypodontia, and hypogonadotropic hypogonadism) leukodystrophy is one of the most common types of hypomyelinating leukodystrophy for which no curative treatment or disease-modifying therapy is available. This review aims to describe potential therapies that could be further studied for effectiveness in pre-clinical studies, for an eventual translation to the clinic to treat the neurological manifestations associated with POLR3-related leukodystrophy. Here, we discuss the therapeutic approaches that have shown promise in other leukodystrophies, as well as other genetic diseases, and consider their use in treating POLR3-related leukodystrophy. More specifically, we explore the approaches of using stem cell transplantation, gene replacement therapy, and gene editing as potential treatment options, and discuss their possible benefits and limitations as future therapeutic directions.
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Affiliation(s)
- Stefanie Perrier
- Department of Neurology and Neurosurgery, McGill University, Montréal, QC, Canada
- Child Health and Human Development Program, Research Institute of the McGill University Health Centre, Montréal, QC, Canada
| | - Mackenzie A. Michell-Robinson
- Department of Neurology and Neurosurgery, McGill University, Montréal, QC, Canada
- Child Health and Human Development Program, Research Institute of the McGill University Health Centre, Montréal, QC, Canada
| | - Geneviève Bernard
- Department of Neurology and Neurosurgery, McGill University, Montréal, QC, Canada
- Child Health and Human Development Program, Research Institute of the McGill University Health Centre, Montréal, QC, Canada
- Department of Pediatrics, McGill University, Montréal, QC, Canada
- Department of Human Genetics, McGill University, Montréal, QC, Canada
- Department of Specialized Medicine, Division of Medical Genetics, Montréal Children’s Hospital and McGill University Health Centre, Montréal, QC, Canada
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44
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Stem Cells an Overview. Stem Cells 2021. [DOI: 10.1007/978-981-16-1638-9_1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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45
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Amores de Sousa MC, Rodrigues CAV, Ferreira IAF, Diogo MM, Linhardt RJ, Cabral JMS, Ferreira FC. Functionalization of Electrospun Nanofibers and Fiber Alignment Enhance Neural Stem Cell Proliferation and Neuronal Differentiation. Front Bioeng Biotechnol 2020; 8:580135. [PMID: 33195141 PMCID: PMC7649414 DOI: 10.3389/fbioe.2020.580135] [Citation(s) in RCA: 30] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/04/2020] [Accepted: 09/24/2020] [Indexed: 01/29/2023] Open
Abstract
Neural stem cells (NSCs) have the potential to generate the cells of the nervous system and, when cultured on nanofiber scaffolds, constitute a promising approach for neural tissue engineering. In this work, the impact of combining nanofiber alignment with functionalization of the electrospun poly-ε-caprolactone (PCL) nanofibers with biological adhesion motifs on the culture of an NSC line (CGR8-NS) is evaluated. A five-rank scale for fiber density was introduced, and a 4.5 level, corresponding to 70–80% fiber density, was selected for NSC in vitro culture. Aligned nanofibers directed NSC distribution and, especially in the presence of laminin (PCL-LN) and the RGD-containing peptide GRGDSP (PCL-RGD), promoted higher cell elongation, quantified by the eccentricity and axis ratio. In situ differentiation resulted in relatively higher percentage of cells expressing Tuj1 in PCL-LN, as well as significantly longer neurite development (41.1 ± 1.0 μm) than PCL-RGD (32.0 ± 1.0 μm), pristine PCL (25.1 ± 1.2 μm), or PCL-RGD randomly oriented fibers (26.5 ± 1.4 μm), suggesting that the presence of LN enhances neuronal differentiation. This study demonstrates that aligned nanofibers, functionalized with RGD, perform as well as PCL-LN fibers in terms of cell adhesion and proliferation. The presence of the full LN protein improves neuronal differentiation outcomes, which may be important for the use of this system in tissue engineering applications.
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Affiliation(s)
- Miriam C Amores de Sousa
- Institute for Bioengineering and Biosciences, Department of Bioengineering, Instituto Superior Técnico, Universidade de Lisboa, Lisbon, Portugal
| | - Carlos A V Rodrigues
- Institute for Bioengineering and Biosciences, Department of Bioengineering, Instituto Superior Técnico, Universidade de Lisboa, Lisbon, Portugal
| | - Inês A F Ferreira
- Institute for Bioengineering and Biosciences, Department of Bioengineering, Instituto Superior Técnico, Universidade de Lisboa, Lisbon, Portugal
| | - Maria Margarida Diogo
- Institute for Bioengineering and Biosciences, Department of Bioengineering, Instituto Superior Técnico, Universidade de Lisboa, Lisbon, Portugal
| | - Robert J Linhardt
- Center for Biotechnology and Interdisciplinary Studies, Department of Chemistry and Chemical Biology, Rensselaer Polytechnic Institute, Troy, NY, United States
| | - Joaquim M S Cabral
- Institute for Bioengineering and Biosciences, Department of Bioengineering, Instituto Superior Técnico, Universidade de Lisboa, Lisbon, Portugal
| | - Frederico Castelo Ferreira
- Institute for Bioengineering and Biosciences, Department of Bioengineering, Instituto Superior Técnico, Universidade de Lisboa, Lisbon, Portugal
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Arzaghi H, Adel B, Jafari H, Askarian-Amiri S, Shiralizadeh Dezfuli A, Akbarzadeh A, Pazoki-Toroudi H. Nanomaterial integration into the scaffolding materials for nerve tissue engineering: a review. Rev Neurosci 2020; 31:/j/revneuro.ahead-of-print/revneuro-2020-0008/revneuro-2020-0008.xml. [PMID: 32776904 DOI: 10.1515/revneuro-2020-0008] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2020] [Accepted: 05/21/2020] [Indexed: 12/12/2022]
Abstract
The nervous system, which consists of a complex network of millions of neurons, is one of the most highly intricate systems in the body. This complex network is responsible for the physiological and cognitive functions of the human body. Following injuries or degenerative diseases, damage to the nervous system is overwhelming because of its complexity and its limited regeneration capacity. However, neural tissue engineering currently has some capacities for repairing nerve deficits and promoting neural regeneration, with more developments in the future. Nevertheless, controlling the guidance of stem cell proliferation and differentiation is a challenging step towards this goal. Nanomaterials have the potential for the guidance of the stem cells towards the neural lineage which can overcome the pitfalls of the classical methods since they provide a unique microenvironment that facilitates cell-matrix and cell-cell interaction, and they can manipulate the cell signaling mechanisms to control stem cells' fate. In this article, the suitable cell sources and microenvironment cues for neuronal tissue engineering were examined. Afterward, the nanomaterials that impact stem cell proliferation and differentiation towards neuronal lineage were reviewed.
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Affiliation(s)
- Hamidreza Arzaghi
- Department of Medical Biotechnology, Faculty of Allied Medical Sciences, Iran University of Medical Sciences, Hemat Highway Next to Milad Tower, Tehran 1449614535, Islamic Republic of Iran
| | - Bashir Adel
- Department of Biology, Faculty of Sciences, The University of Guilan, Rasht 4199613776, Islamic Republic of Iran
| | - Hossein Jafari
- Institute for Research in Fundamental Sciences (IPM), Artesh Highway, Tehran 1956836681, Islamic Reitutionpublic of Iran
| | - Shaghayegh Askarian-Amiri
- Physiology Research Center, Faculty of Medicine, Iran University of Medical Sciences, Hemat Highway Next to Milad Tower, Tehran 1449614535, Islamic Republic of Iran
| | - Amin Shiralizadeh Dezfuli
- Physiology Research Center, Faculty of Medicine, Iran University of Medical Sciences, Hemat Highway Next to Milad Tower, Tehran 1449614535, Islamic Republic of Iran
| | - Abolfazl Akbarzadeh
- Tuberculosis and Lung Disease Research Center of Tabriz, Tabriz University of Medical Sciences, Tabriz 5165665811, Islamic Republic of Iran
- Department of Medical Nanotechnology, Faculty of Advanced Medical Sciences, Tabriz University of Medical Sciences, Tabriz 5165665811, Islamic Republic of Iran
- Iran Universal Scientific and Education Network (USERN), Tabriz 5165665811, Islamic Republic of Iran
| | - Hamidreza Pazoki-Toroudi
- Physiology Research Center, Faculty of Medicine, Iran University of Medical Sciences, Hemat Highway Next to Milad Tower, Tehran 1449614535, Islamic Republic of Iran
- Department of Physiology, Faculty of Medicine, Iran University of Medical Sciences, Hemat Highway Next to Milad Tower, Tehran 1449614535, Islamic Republic of Iran
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47
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Lee J, Bayarsaikhan D, Bayarsaikhan G, Kim JS, Schwarzbach E, Lee B. Recent advances in genome editing of stem cells for drug discovery and therapeutic application. Pharmacol Ther 2020; 209:107501. [DOI: 10.1016/j.pharmthera.2020.107501] [Citation(s) in RCA: 24] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2019] [Accepted: 02/10/2020] [Indexed: 12/20/2022]
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48
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Tuazon JP, Castelli V, Lee JY, Desideri GB, Stuppia L, Cimini AM, Borlongan CV. Neural Stem Cells. ADVANCES IN EXPERIMENTAL MEDICINE AND BIOLOGY 2019; 1201:79-91. [PMID: 31898782 DOI: 10.1007/978-3-030-31206-0_4] [Citation(s) in RCA: 27] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
Neural stem cell (NSC) transplantation has provided the basis for the development of potentially powerful new therapeutic cell-based strategies for a broad spectrum of clinical diseases, including stroke, psychiatric illnesses such as fetal alcohol spectrum disorders, and cancer. Here, we discuss pertinent preclinical investigations involving NSCs, including how NSCs can ameliorate these diseases, the current barriers hindering NSC-based treatments, and future directions for NSC research. There are still many translational requirements to overcome before clinical therapeutic applications, such as establishing optimal dosing, route of delivery, and timing regimens and understanding the exact mechanism by which transplanted NSCs lead to enhanced recovery. Such critical lab-to-clinic investigations will be necessary in order to refine NSC-based therapies for debilitating human disorders.
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Affiliation(s)
- Julian P Tuazon
- Center of Excellence for Aging and Brain Repair, Department of Neurosurgery and Brain Repair, University of South Florida College of Medicine, Tampa, FL, USA
| | - Vanessa Castelli
- Center of Excellence for Aging and Brain Repair, Department of Neurosurgery and Brain Repair, University of South Florida College of Medicine, Tampa, FL, USA
| | - Jea-Young Lee
- Center of Excellence for Aging and Brain Repair, Department of Neurosurgery and Brain Repair, University of South Florida College of Medicine, Tampa, FL, USA
| | | | - Liborio Stuppia
- Department of Psychological, Humanistic and Territorial Sciences, University G. D'Annunzio, Chieti, Italy
| | - Anna Maria Cimini
- Department of Life, Health and Environmental Sciences, University of L'Aquila, L'Aquila, Italy.,Sbarro Institute for Cancer Research and Molecular Medicine, Department of Biology, Temple University, Philadelphia, PA, USA
| | - Cesar V Borlongan
- Center of Excellence for Aging and Brain Repair, Department of Neurosurgery and Brain Repair, University of South Florida College of Medicine, Tampa, FL, USA.
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