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Rybachuk O, Nesterenko Y, Zhovannyk V. Modern advances in spinal cord regeneration: hydrogel combined with neural stem cells. Front Pharmacol 2024; 15:1419797. [PMID: 38994202 PMCID: PMC11236698 DOI: 10.3389/fphar.2024.1419797] [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: 04/18/2024] [Accepted: 06/11/2024] [Indexed: 07/13/2024] Open
Abstract
Severe spinal cord injuries (SCI) lead to loss of functional activity of the body below the injury site, affect a person's ability to self-care and have a direct impact on performance. Due to the structural features and functional role of the spinal cord in the body, the consequences of SCI cannot be completely overcome at the expense of endogenous regenerative potential and, developing over time, lead to severe complications years after injury. Thus, the primary task of this type of injury treatment is to create artificial conditions for the regenerative growth of damaged nerve fibers through the area of the SCI. Solving this problem is possible using tissue neuroengineering involving the technology of replacing the natural tissue environment with synthetic matrices (for example, hydrogels) in combination with stem cells, in particular, neural/progenitor stem cells (NSPCs). This approach can provide maximum stimulation and support for the regenerative growth of axons of damaged neurons and their myelination. In this review, we consider the currently available options for improving the condition after SCI (use of NSC transplantation or/and replacement of the damaged area of the SCI with a matrix, specifically a hydrogel). We emphasise the expediency and effectiveness of the hydrogel matrix + NSCs complex system used for the reconstruction of spinal cord tissue after injury. Since such a complex approach (a combination of tissue engineering and cell therapy), in our opinion, allows not only to creation of conditions for supporting endogenous regeneration or mechanical reconstruction of the spinal cord, but also to strengthen endogenous regeneration, prevent the spread of the inflammatory process, and promote the restoration of lost reflex, motor and sensory functions of the injured area of spinal cord.
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Affiliation(s)
- Oksana Rybachuk
- Bogomoletz Institute of Physiology NAS of Ukraine, Kyiv, Ukraine
- Institute of Genetic and Regenerative Medicine, M. D. Strazhesko National Scientific Center of Cardiology, Clinical and Regenerative Medicine, National Academy of Medical Sciences of Ukraine, Kyiv, Ukraine
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Sun Y, Wu J, Zhou L, Wang W, Wang H, Sun S, Xu Y, Zhang L, Jiang X, Zhu G, Xi K, Gu Y, Chen L. Genetically engineered electrospinning contributes to spinal cord injury repair by regulating the immune microenvironment. Front Bioeng Biotechnol 2024; 12:1415527. [PMID: 38933542 PMCID: PMC11199540 DOI: 10.3389/fbioe.2024.1415527] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2024] [Accepted: 05/21/2024] [Indexed: 06/28/2024] Open
Abstract
Introduction: Spinal cord injury (SCI) is associated with microenvironment imbalance, thereby resulting in poor regeneration and recovery of the spinal cord. Gene therapy can be used to balance the inflammatory response, however target genes cannot exist in localized injured areas. Methods: A genetically engineered electrospun scaffold (GEES) to achieve long-term immunoregulation and nerve repair was constructed. By combining the microfluidic and electrospinning techniques, interleukin-10 plasmid (pIL10) was loaded into lipid nanoparticles (LNPs) (pIL10-LNP), which was encapsulated to the nerve growth factor (NGF). Immunofluorescence staining, qRT-PCR, ELISA, flow cytometry, and other tests were employed to comprehensively assess the role of GEES in modulating macrophage polarization and facilitating neural repair. Results: The results showed that the scaffold released >70% of the pIL10-LNP within 10 d and continued slow release within 30 d. In vitro cell experiments have demonstrated that GEES effectively stimulates macrophages to secrete anti-inflammatory cytokines and facilitates the differentiation of neural stem cells into neuronal cells. In rat T9 SCI model, the GEES significantly inhibited the inflammatory response in the acute and chronic phases of SCI by transfecting local tissues with slow-release pIL10-LNP to promote the release of the anti-inflammatory factor IL10, thereby creating a favorable microenvironment. With the addition of NGF, the repair and regeneration of nerve tissues was effectively promoted, and the post-SCI motor function of rats improved. Discussion: GEES can regulate post-SCI immune responses through continuous and effective gene delivery, providing a new strategy for the construction of electrospun scaffolds for nerve repair in gene therapy.
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Affiliation(s)
- Yang Sun
- Department of Orthopedics, The First Affiliated Hospital of Soochow University, Suzhou, Jiangsu, China
- Institute Orthopedic, Soochow University, Suzhou, Jiangsu, China
| | - Jie Wu
- Department of Orthopedics, The First Affiliated Hospital of Soochow University, Suzhou, Jiangsu, China
- Institute Orthopedic, Soochow University, Suzhou, Jiangsu, China
| | - Liang Zhou
- Department of Orthopedics, The First Affiliated Hospital of Soochow University, Suzhou, Jiangsu, China
- Institute Orthopedic, Soochow University, Suzhou, Jiangsu, China
| | - Wei Wang
- Department of Orthopedics, The First Affiliated Hospital of Soochow University, Suzhou, Jiangsu, China
- Institute Orthopedic, Soochow University, Suzhou, Jiangsu, China
| | - Haibo Wang
- Department of Orthopedics, The First Affiliated Hospital of Soochow University, Suzhou, Jiangsu, China
- Institute Orthopedic, Soochow University, Suzhou, Jiangsu, China
| | - Shaosong Sun
- Department of Orthopedics, The First Affiliated Hospital of Soochow University, Suzhou, Jiangsu, China
- Institute Orthopedic, Soochow University, Suzhou, Jiangsu, China
| | - Yichang Xu
- Department of Orthopedics, The First Affiliated Hospital of Soochow University, Suzhou, Jiangsu, China
- Institute Orthopedic, Soochow University, Suzhou, Jiangsu, China
| | - Lichen Zhang
- Department of Orthopedics, The First Affiliated Hospital of Soochow University, Suzhou, Jiangsu, China
- Institute Orthopedic, Soochow University, Suzhou, Jiangsu, China
| | - Xinzhao Jiang
- Department of Orthopedics, The First Affiliated Hospital of Soochow University, Suzhou, Jiangsu, China
- Institute Orthopedic, Soochow University, Suzhou, Jiangsu, China
| | - Guoqing Zhu
- Department of Orthopedics, The First Affiliated Hospital of Soochow University, Suzhou, Jiangsu, China
- Institute Orthopedic, Soochow University, Suzhou, Jiangsu, China
- Department of Orthopedics, Suzhou Municipal Hospital, Suzhou, Jiangsu, China
| | - Kun Xi
- Department of Orthopedics, The First Affiliated Hospital of Soochow University, Suzhou, Jiangsu, China
- Institute Orthopedic, Soochow University, Suzhou, Jiangsu, China
| | - Yong Gu
- Department of Orthopedics, The First Affiliated Hospital of Soochow University, Suzhou, Jiangsu, China
- Institute Orthopedic, Soochow University, Suzhou, Jiangsu, China
| | - Liang Chen
- Department of Orthopedics, The First Affiliated Hospital of Soochow University, Suzhou, Jiangsu, China
- Institute Orthopedic, Soochow University, Suzhou, Jiangsu, China
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Radoszkiewicz K, Bzinkowska A, Chodkowska M, Rybkowska P, Sypecka M, Zembrzuska-Kaska I, Sarnowska A. Deciphering the impact of cerebrospinal fluid on stem cell fate as a new mechanism to enhance clinical therapy development. Front Neurosci 2024; 17:1332751. [PMID: 38282622 PMCID: PMC10811009 DOI: 10.3389/fnins.2023.1332751] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2023] [Accepted: 12/29/2023] [Indexed: 01/30/2024] Open
Abstract
Neural stem cells (NSCs) hold a very significant promise as candidates for cell therapy due to their robust neuroprotective and regenerative properties. Preclinical studies using NSCs have shown enough encouraging results to perform deeper investigations into more potential clinical applications. Nevertheless, our knowledge regarding neurogenesis and its underlying mechanisms remains incomplete. To understand them better, it seems necessary to characterize all components of neural stem cell niche and discover their role in physiology and pathology. Using NSCs in vivo brings challenges including limited cell survival and still inadequate integration within host tissue. Identifying overlooked factors that might influence these outcomes becomes pivotal. In this review, we take a deeper examination of the influence of a fundamental element that is present in the brain, the cerebrospinal fluid (CSF), which still remains relatively unexplored. Its role in neurogenesis could be instrumental to help find novel therapeutic solutions for neurological disorders, eventually advancing our knowledge on central nervous system (CNS) regeneration and repair.
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Affiliation(s)
| | | | | | | | | | | | - Anna Sarnowska
- Translational Platform for Regenerative Medicine, Mossakowski Medical Research Institute, Polish Academy of Sciences, Warsaw, Poland
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Stewart AN, Gensel JC, Jones L, Fouad K. Challenges in Translating Regenerative Therapies for Spinal Cord Injury. Top Spinal Cord Inj Rehabil 2023; 29:23-43. [PMID: 38174141 PMCID: PMC10759906 DOI: 10.46292/sci23-00044s] [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: 01/05/2024]
Abstract
Regenerating the injured spinal cord is a substantial challenge with many obstacles that need to be overcome to achieve robust functional benefits. This abundance of hurdles can partly explain the limited success when applying regenerative intervention treatments in animal models and/or people. In this article, we elaborate on a few of these obstacles, starting with the applicability of animal models and how they compare to the clinical setting. We then discuss the requirement for combinatorial interventions and the associated problems in experimental design, including the addition of rehabilitative training. The article expands on differences in lesion sizes and locations between humans and common animal models, and how this difference can determine the success or failure of an intervention. An additional and frequently overlooked problem in the translation of interventions that applies beyond the field of neuroregeneration is the reporting bias and the lack of transparency in reporting findings. New data mandates are tackling this problem and will eventually result in a more balanced view of the field. Finally, we will discuss strategies to negotiate the challenging course of successful translation to facilitate successful translation of regeneration promoting interventions.
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Affiliation(s)
- Andrew N. Stewart
- Spinal Cord and Brain Injury Research Center, University of Kentucky, Lexington, Kentucky, USA
| | - John C. Gensel
- Spinal Cord and Brain Injury Research Center, University of Kentucky, Lexington, Kentucky, USA
| | - Linda Jones
- Department of Occupational Therapy, Thomas Jefferson University, Philadelphia, Pennsylvania, USA
| | - Karim Fouad
- Department of Physical Therapy, University of Alberta, Edmonton, Canada
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Rybachuk O, Nesterenko Y, Pinet É, Medvediev V, Yaminsky Y, Tsymbaliuk V. Neuronal differentiation and inhibition of glial differentiation of murine neural stem cells by pHPMA hydrogel for the repair of injured spinal cord. Exp Neurol 2023; 368:114497. [PMID: 37517459 DOI: 10.1016/j.expneurol.2023.114497] [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: 03/15/2023] [Revised: 06/22/2023] [Accepted: 07/23/2023] [Indexed: 08/01/2023]
Abstract
Currently, several therapeutic methods of treating the effects of spinal cord injury (SCI) are being considered. On the one hand, transplantation of stem cells (SCs), in particular, neural stem/progenitor cells (NSPCs), is promising, as these cells have the potential to differentiate into nervous tissue cells, able to enhance endogenous regeneration and prevent the development of inflammatory processes. On the other hand, it is quite promising to replace the damaged nervous tissue with synthetic matrices, in particular hydrogels, which can create artificial conditions for the regenerative growth of injured nerve fibers through the spinal cord injury area, i.e. stimulate and support axonal regeneration and myelination. In this work, we combined both of these novel approaches by populating (injecting or rehydrating) a heteroporous pHPMA hydrogel (NeuroGel) with murine hippocampal NSPCs. Being inside the hydrogel (10 days of cultivation), NSPCs were more differentiated into neurons: 19.48% ± 1.71% (the NSPCs injection into the hydrogel) and 36.49% ± 4.20% (the hydrogel rehydration in the NSPCs suspension); in control cultures, the level of differentiation in neurons was only 2.40% ± 0.31%. Differentiation of NSPCs into glial cells, in particular into oligodendrocyte progenitor cells, was also observed - 8.89% ± 2.15% and 6.21% ± 0.80% for injection and rehydration variants, respectively; in control - 28.75% ± 2.08%. In the control NSPCs culture, there was a small number of astrocytes - 2.11% ± 0.43%. Inside the hydrogel, NSPCs differentiation in astrocytes was not observed. In vitro data showed that the hydrogel promotes the differentiation of NSPCs into neurons, and inhibits the differentiation into glial cells. And in vivo showed post-traumatic recovery of rat spinal cord tissue after injury followed by implantation of the hydrogel+NSPCs complex (approximately 7 months after SCI). The implant area was closely connected with the recipient tissue, and the recipient cells freely grew into the implant itself. Inside the implant, a formed dense neuronal network was visible. In summary, the results are primarily an experimental ground for further studies of implants based on pHPMA hydrogel with populated different origin SCs, and the data also indicate the feasibility and efficiency of using an integrated approach to reduce possible negative side effects and facilitate the rehabilitation process after a SCI.
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Affiliation(s)
- Oksana Rybachuk
- Bogomoletz Institute of Physiology NAS of Ukraine, Kyiv 01601, Ukraine; State Institution National Scientific Center the M.D. Strazhesko Institute of Cardiology, Clinical and Regenerative Medicine, NAMS of Ukraine, Kyiv 03680, Ukraine.
| | - Yuliia Nesterenko
- Bogomoletz Institute of Physiology NAS of Ukraine, Kyiv 01601, Ukraine
| | | | - Volodymyr Medvediev
- Bogomoletz Institute of Physiology NAS of Ukraine, Kyiv 01601, Ukraine; Bogomolets National Medical University, Kyiv 01601, Ukraine
| | - Yurii Yaminsky
- State Institution "Romodanov Neurosurgery Institute, National Academy of Medical Sciences of Ukraine", Kyiv 04050, Ukraine
| | - Vitaliy Tsymbaliuk
- Bogomolets National Medical University, Kyiv 01601, Ukraine; State Institution "Romodanov Neurosurgery Institute, National Academy of Medical Sciences of Ukraine", Kyiv 04050, Ukraine
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Horánszky A, Shashikadze B, Elkhateib R, Lombardo SD, Lamberto F, Zana M, Menche J, Fröhlich T, Dinnyés A. Proteomics and disease network associations evaluation of environmentally relevant Bisphenol A concentrations in a human 3D neural stem cell model. Front Cell Dev Biol 2023; 11:1236243. [PMID: 37664457 PMCID: PMC10472293 DOI: 10.3389/fcell.2023.1236243] [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: 06/07/2023] [Accepted: 07/31/2023] [Indexed: 09/05/2023] Open
Abstract
Bisphenol A (BPA) exposure is associated with a plethora of neurodevelopmental abnormalities and brain disorders. Previous studies have demonstrated BPA-induced perturbations to critical neural stem cell (NSC) characteristics, such as proliferation and differentiation, although the underlying molecular mechanisms remain under debate. The present study evaluated the effects of a repeated-dose exposure of environmentally relevant BPA concentrations during the in vitro 3D neural induction of human induced pluripotent stem cells (hiPSCs), emulating a chronic exposure scenario. Firstly, we demonstrated that our model is suitable for NSC differentiation during the early stages of embryonic brain development. Our morphological image analysis showed that BPA exposure at 0.01, 0.1 and 1 µM decreased the average spheroid size by day 21 (D21) of the neural induction, while no effect on cell viability was detected. No alteration to the rate of the neural induction was observed based on the expression of key neural lineage and neuroectodermal transcripts. Quantitative proteomics at D21 revealed several differentially abundant proteins across all BPA-treated groups with important functions in NSC proliferation and maintenance (e.g., FABP7, GPC4, GAP43, Wnt-8B, TPPP3). Additionally, a network analysis demonstrated alterations to the glycolytic pathway, potentially implicating BPA-induced changes to glycolytic signalling in NSC proliferation impairments, as well as the pathophysiology of brain disorders including intellectual disability, autism spectrum disorders, and amyotrophic lateral sclerosis (ALS). This study enhances the current understanding of BPA-related NSC aberrations based mostly on acute, often high dose exposures of rodent in vivo and in vitro models and human GWAS data in a novel human 3D cell-based model with real-life scenario relevant prolonged and low-level exposures, offering further mechanistic insights into the ramifications of BPA exposure on the developing human brain and consequently, later life neurological disorders.
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Affiliation(s)
- Alex Horánszky
- BioTalentum Ltd., Gödöllő, Hungary
- Department of Physiology and Animal Health, Institute of Physiology and Animal Nutrition, Hungarian University of Agriculture and Life Sciences, Gödöllő, Hungary
| | - Bachuki Shashikadze
- Laboratory for Functional Genome Analysis (LAFUGA), Gene Center, LMU Munich, Munich, Germany
| | - Radwa Elkhateib
- Laboratory for Functional Genome Analysis (LAFUGA), Gene Center, LMU Munich, Munich, Germany
| | - Salvo Danilo Lombardo
- Max Perutz Labs, Vienna Biocenter Campus (VBC), Vienna, Austria
- Department of Structural and Computational Biology, Center for Molecular Biology, University of Vienna, Vienna, Austria
- CeMM Research Center for Molecular Medicine of the Austrian Academy of Sciences, Vienna, Austria
| | - Federica Lamberto
- BioTalentum Ltd., Gödöllő, Hungary
- Department of Physiology and Animal Health, Institute of Physiology and Animal Nutrition, Hungarian University of Agriculture and Life Sciences, Gödöllő, Hungary
| | | | - Jörg Menche
- Max Perutz Labs, Vienna Biocenter Campus (VBC), Vienna, Austria
- Department of Structural and Computational Biology, Center for Molecular Biology, University of Vienna, Vienna, Austria
- CeMM Research Center for Molecular Medicine of the Austrian Academy of Sciences, Vienna, Austria
- Faculty of Mathematics, University of Vienna, Vienna, Austria
| | - Thomas Fröhlich
- Laboratory for Functional Genome Analysis (LAFUGA), Gene Center, LMU Munich, Munich, Germany
| | - András Dinnyés
- BioTalentum Ltd., Gödöllő, Hungary
- Department of Physiology and Animal Health, Institute of Physiology and Animal Nutrition, Hungarian University of Agriculture and Life Sciences, Gödöllő, Hungary
- Department of Cell Biology and Molecular Medicine, University of Szeged, Szeged, Hungary
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Martins M, Oliveira AR, Martins S, Vieira JP, Perdigão P, Fernandes AR, de Almeida LP, Palma PJ, Sequeira DB, Santos JMM, Duque F, Oliveira G, Cardoso AL, Peça J, Seabra CM. A Novel Genetic Variant in MBD5 Associated with Severe Epilepsy and Intellectual Disability: Potential Implications on Neural Primary Cilia. Int J Mol Sci 2023; 24:12603. [PMID: 37628781 PMCID: PMC10454663 DOI: 10.3390/ijms241612603] [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: 07/14/2023] [Revised: 08/04/2023] [Accepted: 08/05/2023] [Indexed: 08/27/2023] Open
Abstract
Disruptions in the MBD5 gene have been linked with an array of clinical features such as global developmental delay, intellectual disability, autistic-like symptoms, and seizures, through unclear mechanisms. MBD5 haploinsufficiency has been associated with the disruption of primary cilium-related processes during early cortical development, and this has been reported in many neurodevelopmental disorders. In this study, we describe the clinical history of a 12-year-old child harboring a novel MBD5 rare variant and presenting psychomotor delay and seizures. To investigate the impact of MBD5 haploinsufficiency on neural primary cilia, we established a novel patient-derived cell line and used CRISPR-Cas9 technology to create an isogenic control. The patient-derived neural progenitor cells revealed a decrease in the length of primary cilia and in the total number of ciliated cells. This study paves the way to understanding the impact of MBD5 haploinsufficiency in brain development through its potential impact on neural primary cilia.
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Affiliation(s)
- Mariana Martins
- Center for Neuroscience and Cell Biology (CNC), University of Coimbra, 3004-504 Coimbra, Portugal
- Faculty of Pharmacy, University of Coimbra, 3000-548 Coimbra, Portugal
| | - Ana Rafaela Oliveira
- Center for Neuroscience and Cell Biology (CNC), University of Coimbra, 3004-504 Coimbra, Portugal
| | - Solange Martins
- Center for Neuroscience and Cell Biology (CNC), University of Coimbra, 3004-504 Coimbra, Portugal
- Institute for Interdisciplinary Research, University of Coimbra, 3030-789 Coimbra, Portugal
| | - José Pedro Vieira
- Neuropediatrics Unit, Central Lisbon Hospital Center, 1169-045 Lisbon, Portugal
| | - Pedro Perdigão
- Center for Neuroscience and Cell Biology (CNC), University of Coimbra, 3004-504 Coimbra, Portugal
- Institute for Interdisciplinary Research, University of Coimbra, 3030-789 Coimbra, Portugal
| | - Ana Rita Fernandes
- Center for Neuroscience and Cell Biology (CNC), University of Coimbra, 3004-504 Coimbra, Portugal
- Institute for Interdisciplinary Research, University of Coimbra, 3030-789 Coimbra, Portugal
| | - Luís Pereira de Almeida
- Center for Neuroscience and Cell Biology (CNC), University of Coimbra, 3004-504 Coimbra, Portugal
- Faculty of Pharmacy, University of Coimbra, 3000-548 Coimbra, Portugal
| | - Paulo Jorge Palma
- Institute of Endodontics, Faculty of Medicine, University of Coimbra, 3000-075 Coimbra, Portugal
- Center for Innovation and Research in Oral Sciences (CIROS), Faculty of Medicine, University of Coimbra, 3000-075 Coimbra, Portugal
| | - Diana Bela Sequeira
- Institute of Endodontics, Faculty of Medicine, University of Coimbra, 3000-075 Coimbra, Portugal
- Center for Innovation and Research in Oral Sciences (CIROS), Faculty of Medicine, University of Coimbra, 3000-075 Coimbra, Portugal
| | - João Miguel Marques Santos
- Institute of Endodontics, Faculty of Medicine, University of Coimbra, 3000-075 Coimbra, Portugal
- Center for Innovation and Research in Oral Sciences (CIROS), Faculty of Medicine, University of Coimbra, 3000-075 Coimbra, Portugal
| | - Frederico Duque
- University Clinic of Pediatrics, Faculty of Medicine, University of Coimbra, 3000-602 Coimbra, Portugal
- Child Developmental Center and Research and Clinical Training Center, Pediatric Hospital, Centro Hospitalar e Universitário de Coimbra (CHUC), 3000-602 Coimbra, Portugal
| | - Guiomar Oliveira
- University Clinic of Pediatrics, Faculty of Medicine, University of Coimbra, 3000-602 Coimbra, Portugal
- Child Developmental Center and Research and Clinical Training Center, Pediatric Hospital, Centro Hospitalar e Universitário de Coimbra (CHUC), 3000-602 Coimbra, Portugal
| | - Ana Luísa Cardoso
- Center for Neuroscience and Cell Biology (CNC), University of Coimbra, 3004-504 Coimbra, Portugal
- Institute for Interdisciplinary Research, University of Coimbra, 3030-789 Coimbra, Portugal
| | - João Peça
- Center for Neuroscience and Cell Biology (CNC), University of Coimbra, 3004-504 Coimbra, Portugal
- Department of Life Sciences, University of Coimbra, 3000-456 Coimbra, Portugal
| | - Catarina Morais Seabra
- Center for Neuroscience and Cell Biology (CNC), University of Coimbra, 3004-504 Coimbra, Portugal
- Institute for Interdisciplinary Research, University of Coimbra, 3030-789 Coimbra, Portugal
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Suzuki H, Imajo Y, Funaba M, Ikeda H, Nishida N, Sakai T. Current Concepts of Biomaterial Scaffolds and Regenerative Therapy for Spinal Cord Injury. Int J Mol Sci 2023; 24:ijms24032528. [PMID: 36768846 PMCID: PMC9917245 DOI: 10.3390/ijms24032528] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2022] [Revised: 01/05/2023] [Accepted: 01/11/2023] [Indexed: 02/03/2023] Open
Abstract
Spinal cord injury (SCI) is a catastrophic condition associated with significant neurological deficit and social and financial burdens. It is currently being managed symptomatically, with no real therapeutic strategies available. In recent years, a number of innovative regenerative strategies have emerged and have been continuously investigated in preclinical research and clinical trials. In the near future, several more are expected to come down the translational pipeline. Among ongoing and completed trials are those reporting the use of biomaterial scaffolds. The advancements in biomaterial technology, combined with stem cell therapy or other regenerative therapy, can now accelerate the progress of promising novel therapeutic strategies from bench to bedside. Various types of approaches to regeneration therapy for SCI have been combined with the use of supportive biomaterial scaffolds as a drug and cell delivery system to facilitate favorable cell-material interactions and the supportive effect of neuroprotection. In this review, we summarize some of the most recent insights of preclinical and clinical studies using biomaterial scaffolds in regenerative therapy for SCI and summarized the biomaterial strategies for treatment with simplified results data. One hundred and sixty-eight articles were selected in the present review, in which we focused on biomaterial scaffolds. We conducted our search of articles using PubMed and Medline, a medical database. We used a combination of "Spinal cord injury" and ["Biomaterial", or "Scaffold"] as search terms and searched articles published up until 30 April 2022. Successful future therapies will require these biomaterial scaffolds and other synergistic approaches to address the persistent barriers to regeneration, including glial scarring, the loss of a structural framework, and biocompatibility. This database could serve as a benchmark to progress in future clinical trials for SCI using biomaterial scaffolds.
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Rybachuk O, Savytska N, Pinet É, Yaminsky Y, Medvediev V. Heterogeneous pHPMA hydrogel promotes neuronal differentiation of bone marrow derived stromal cells in vitroand in vivo. Biomed Mater 2023; 18. [PMID: 36542861 DOI: 10.1088/1748-605x/acadc3] [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: 06/27/2022] [Accepted: 12/21/2022] [Indexed: 12/24/2022]
Abstract
Synthetic hydrogels composed of polymer pore frames are commonly used in medicine, from pharmacologically targeted drug delivery to the creation of bioengineering constructions used in implantation surgery. Among various possible materials, the most common are poly-[N(2-hydroxypropyl)methacrylamide] (pHPMA) derivatives. One of the pHPMA derivatives is biocompatible hydrogel, NeuroGel. Upon contact with nervous tissue, the NeuroGel's structure can support the chemical and physiological conditions of the tissue necessary for the growth of native cells. Owing to the different pore diameters in the hydrogel, not only macromolecules, but also cells can migrate. This study evaluated the differentiation of bone marrow stromal cells (BMSCs) into neurons, as well as the effectiveness of using this biofabricated system in spinal cord injuryin vivo. The hydrogel was populated with BMSCs by injection or rehydration. After cultivation, these fragments (hydrogel + BMSCs) were implanted into the injured rat spinal cord. Fragments were immunostained before implantation and seven months after implantation. During cultivation with the hydrogel, both variants (injection/rehydration) of the BMSCs culture retained their viability and demonstrated a significant number of Ki-67-positive cells, indicating the preservation of their proliferative activity. In hydrogel fragments, BMSCs also maintained their viability during the period of cocultivation and were Ki-67-positive, but in significantly fewer numbers than in the cell culture. In addition, in fragments of hydrogel with grafted BMSCs, both by the injection or rehydration versions, we observed a significant number up to 57%-63.5% of NeuN-positive cells. These results suggest that the heterogeneous pHPMA hydrogel promotes neuronal differentiation of bone marrow-derived stromal cells. Furthermore, these data demonstrate the possible use of NeuroGel implants with grafted BMSCs for implantation into damaged areas of the spinal cord, with subsequent nerve fiber germination, nerve cell regeneration, and damaged segment restoration.
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Affiliation(s)
- Oksana Rybachuk
- Bogomoletz Institute of Physiology NAS of Ukraine, Kyiv, Ukraine.,Institute of Genetic and Regenerative Medicine, M. D. Strazhesko National Scientific Center of Cardiology, Clinical and Regenerative Medicine, NAMS of Ukraine, Kyiv, Ukraine
| | - Natalia Savytska
- Bogomoletz Institute of Physiology NAS of Ukraine, Kyiv, Ukraine.,German Center for Neurodegenerative Diseases, Tübingen, Germany
| | | | - Yurii Yaminsky
- State Institution 'Romodanov Neurosurgery Institute, NAMS of Ukraine', Kyiv, Ukraine
| | - Volodymyr Medvediev
- Bogomoletz Institute of Physiology NAS of Ukraine, Kyiv, Ukraine.,Bogomolets National Medical University, Kyiv, Ukraine
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Lee S, Nam H, Joo KM, Lee SH. Advances in Neural Stem Cell Therapy for Spinal Cord Injury: Safety, Efficacy, and Future Perspectives. Neurospine 2022; 19:946-960. [PMID: 36351442 PMCID: PMC9816608 DOI: 10.14245/ns.2244658.329] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2022] [Accepted: 10/19/2022] [Indexed: 11/11/2022] Open
Abstract
Spinal cord injury (SCI) is a devastating central nervous system injury that leads to severe disabilities in motor and sensory functions, causing significant deterioration in patients' quality of life. Owing to the complexity of SCI pathophysiology, there has been no effective treatment for reversing neural tissue damage and recovering neurological functions. Several novel therapies targeting different stages of pathophysiological mechanisms of SCI have been developed. Among these, treatments using stem cells have great potential for the regeneration of damaged neural tissues. In this review, we have summarized recent preclinical and clinical studies focusing on neural stem cells (NSCs). NSCs are multipotent cells with specific differentiation capabilities for neural lineage. Several preclinical studies have demonstrated the regenerative effects of transplanted NSCs in SCI animal models through both paracrine effects and direct neuronal differentiation, restoring synaptic connectivity and neural networks. Based on the positive results of several preclinical studies, phase I and II clinical trials using NSCs have been performed. Despite several hurdles and issues that need to be addressed in the clinical use of NSCs in patients with SCI, gradual progress in the technical development and therapeutic efficacy of NSCs treatments has enhanced the prospects for cell-based treatments in SCI.
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Affiliation(s)
- Sungjoon Lee
- Department of Neurosurgery, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea
| | - Hyun Nam
- Department of Neurosurgery, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea,Stem Cell and Regenerative Medicine Institute, Research Institute for Future Medicine, Samsung Medical Center, Seoul, Korea,Single Cell Network Research Center, Sungkyunkwan University School of Medicine, Suwon, Korea,Department of Anatomy & Cell Biology, Sungkyunkwan University School of Medicine, Suwon, Korea
| | - Kyeung-Min Joo
- Stem Cell and Regenerative Medicine Institute, Research Institute for Future Medicine, Samsung Medical Center, Seoul, Korea,Single Cell Network Research Center, Sungkyunkwan University School of Medicine, Suwon, Korea,Department of Anatomy & Cell Biology, Sungkyunkwan University School of Medicine, Suwon, Korea,Department of Health Sciences and Technology, SAIHST, Sungkyunkwan University, Seoul, Korea,Corresponding Author Kyeung-Min Joo Department of Anatomy and Cell Biology, Sungkyunkwan University School of Medicine, 2066 Seobu-ro, Jangan-gu, Suwon 16419, Korea
| | - Sun-Ho Lee
- Department of Neurosurgery, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea,Stem Cell and Regenerative Medicine Institute, Research Institute for Future Medicine, Samsung Medical Center, Seoul, Korea,Department of Health Sciences and Technology, SAIHST, Sungkyunkwan University, Seoul, Korea,Co-corresponding Author Sun-Ho Lee Department of Neurosurgery, Samsung Medical Center, Sungkyunkwan University School of Medicine, 81 Irwon-ro, Gangnam-gu, Seoul 06351, Korea
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