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Wu L, He J, Shen N, Chen S. Molecular and cellular mechanisms underlying peripheral nerve injury-induced cellular ecological shifts: Implications for neuroregeneration. IBRO Neurosci Rep 2025; 18:120-129. [PMID: 39877591 PMCID: PMC11773043 DOI: 10.1016/j.ibneur.2024.12.013] [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: 10/10/2024] [Accepted: 12/27/2024] [Indexed: 01/31/2025] Open
Abstract
The peripheral nervous system is a complex ecological network, and its injury triggers a series of fine-grained intercellular regulations that play a crucial role in the repair process. The peripheral nervous system is a sophisticated ecological network, and its injury initiates a cascade of intricate intercellular regulatory processes that are instrumental in the repair process. Despite the advent of sophisticated microsurgical techniques, the repair of peripheral nerve injuries frequently proves inadequate, resulting in adverse effects on patients' quality of life. Accordingly, the continued pursuit of more efficacious treatments is of paramount importance. In this paper, a review of the relevant literature from recent years was conducted to identify the key cell types involved after peripheral nerve injury. These included Schwann cells, macrophages, neutrophils, endothelial cells, and fibroblasts. The review was conducted in depth. This paper analyses the phenotypic changes of these cells after injury, the relevant factors affecting these changes, and how they coordinate with neurons and other cell types. In addition, it explores the potential mechanisms that mediate the behaviour of these cells. Understanding the interactions between these cells and their mutual regulation with neurons is of great significance for the discovery of new neuroregenerative treatments and the identification of potential therapeutic targets.
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Affiliation(s)
- Limao Wu
- School of Clinical Medicine, Hebei University of Engineering, No.81 Congtai Road, Congtai District, Handan City, Hebei Province 056004, China
| | - Jinglan He
- Affiliated Hospital of Hebei University of Engineering, No. 80, Jianshe Street, Fuxing District, Handan City, Hebei Province 056003, China
| | - Na Shen
- Department of Science and Education, Affiliated Hospital of Hebei University of Engineering, No.81 Congtai Road, Congtai District, Handan City, Hebei Province 056004, China
| | - Song Chen
- Orthopaedic Center, Affiliated Hospital of Hebei University of Engineering, No.81 Congtai Road, Congtai District, Handan City, Hebei Province 56004, China
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Fu C, Ruan J, Mo L, Zhao J, Lu J, Huang Y, Hu X, Huang Q, Feng Y, Tang W, Zhu N, Lu C, Lu X, Chen R, Liu G, Huang H, Li Q, Tan J. Epidemiological and clinical profiles of respiratory syncytial virus infections in hospitalized children: a retrospective cohort study utilizing targeted next-generation sequencing. Eur J Clin Microbiol Infect Dis 2025; 44:1391-1403. [PMID: 40133679 DOI: 10.1007/s10096-025-05112-w] [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: 03/03/2025] [Accepted: 03/19/2025] [Indexed: 03/27/2025]
Abstract
BACKGROUND Respiratory syncytial virus (RSV) is a significant cause of respiratory infections in children. Currently, there is limited literature on the clinical use of pathogen-targeted sequencing technologies and the systematic analysis of RSV infections in hospitalized children. The primary objective of this research was to evaluate the infection status and clinical manifestations associated with RSV in these pediatric patients. METHODS Between July 2021 and November 2023, 5,021 children hospitalized due to respiratory infections or associated complications were enrolled at the Maternal and Child Health Hospital of Guangxi Zhuang Autonomous Region. Targeted next-generation sequencing (tNGS) was used to detect pathogens in their respiratory samples. Subsequently, the clinical data of children infected with RSV were systematically evaluated. RESULTS Of the 5,021 children hospitalized with respiratory infections, RSV was detected in 1,080, yielding a detection rate of 21.5%. Among RSV-positive patients, only 8.6% (93/1080) experienced single infections, while the majority, 91.4% (987/1080), had co-infections with other pathogens. Among the observed infection patterns, RSV-viral-bacterial co-infection was the most prevalent, occurring in 524 cases (48.5%), followed by RSV-viral co-infection in 141 cases (13.1%). Among children with RSV co-infections, 43 additional microorganisms were detected, with cytomegalovirus, Haemophilus influenzae, and Streptococcus pneumoniae being the most prevalent. Of the 1,080 children diagnosed with RSV, 172 (15.9%) required ICU admission for monitoring. The median duration of hospitalization for the 1080 children diagnosed with RSV infection was 8 days. Of these, 1025 (94.9%) patients recovered and were discharged following treatment, while 54 (5.0%) of the patients' family members requested voluntary discharge due to unsatisfactory outcomes or other reasons. Unfortunately, one child (0.1%) died despite receiving intensive medical treatment. CONCLUSION Due to the high incidence of RSV infections and associated ICU admissions, there is a critical need for effective vaccine development to protect infants and children. This study presents a comprehensive analysis of hospitalized pediatric patients with RSV, examining infection patterns, clinical manifestations, laboratory findings, imaging characteristics, complications, and prognosis.
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Affiliation(s)
- Chunyun Fu
- Medical Science Laboratory, Children'S Hospital, Maternal and Child Health Hospital of Guangxi Zhuang Autonomous Region, Nanning, 530003, China
| | - Jialing Ruan
- Medical Science Laboratory, Children'S Hospital, Maternal and Child Health Hospital of Guangxi Zhuang Autonomous Region, Nanning, 530003, China
| | - Lishai Mo
- Medical Science Laboratory, Children'S Hospital, Maternal and Child Health Hospital of Guangxi Zhuang Autonomous Region, Nanning, 530003, China
| | - Jiangyang Zhao
- Medical Science Laboratory, Children'S Hospital, Maternal and Child Health Hospital of Guangxi Zhuang Autonomous Region, Nanning, 530003, China
| | - Junming Lu
- Medical Science Laboratory, Children'S Hospital, Maternal and Child Health Hospital of Guangxi Zhuang Autonomous Region, Nanning, 530003, China
| | - Ya Huang
- Department of Pediatric Respiratory Medicine, Children'S Hospital, Maternal and Child Health Hospital of Guangxi Zhuang Autonomous Region, Nanning, 530003, China
| | - Xuehua Hu
- Medical Science Laboratory, Children'S Hospital, Maternal and Child Health Hospital of Guangxi Zhuang Autonomous Region, Nanning, 530003, China
| | - Qiang Huang
- Medical Science Laboratory, Children'S Hospital, Maternal and Child Health Hospital of Guangxi Zhuang Autonomous Region, Nanning, 530003, China
| | - Yanhua Feng
- Department of Pediatric Respiratory Medicine, Children'S Hospital, Maternal and Child Health Hospital of Guangxi Zhuang Autonomous Region, Nanning, 530003, China
| | - Wenting Tang
- Medical Science Laboratory, Children'S Hospital, Maternal and Child Health Hospital of Guangxi Zhuang Autonomous Region, Nanning, 530003, China
| | - Ning Zhu
- Medical Science Laboratory, Children'S Hospital, Maternal and Child Health Hospital of Guangxi Zhuang Autonomous Region, Nanning, 530003, China
| | - Cuihong Lu
- Department of Pediatric Respiratory Medicine, Children'S Hospital, Maternal and Child Health Hospital of Guangxi Zhuang Autonomous Region, Nanning, 530003, China
| | - Xiangjun Lu
- Medical Science Laboratory, Children'S Hospital, Maternal and Child Health Hospital of Guangxi Zhuang Autonomous Region, Nanning, 530003, China
| | - Ruting Chen
- Department of Pediatric Respiratory Medicine, Children'S Hospital, Maternal and Child Health Hospital of Guangxi Zhuang Autonomous Region, Nanning, 530003, China
| | - Guangbing Liu
- Department of Pediatric Respiratory Medicine, Children'S Hospital, Maternal and Child Health Hospital of Guangxi Zhuang Autonomous Region, Nanning, 530003, China
| | - Huiping Huang
- Department of Pediatric Respiratory Medicine, Children'S Hospital, Maternal and Child Health Hospital of Guangxi Zhuang Autonomous Region, Nanning, 530003, China.
| | - Qifei Li
- Division of Neonatology, Department of Pediatrics, University of Miami Miller School of Medicine and Holtz Children's Hospital, Jackson Health System, Miami, FL, 33136, USA.
| | - Jie Tan
- Department of Pediatric Respiratory Medicine, Children'S Hospital, Maternal and Child Health Hospital of Guangxi Zhuang Autonomous Region, Nanning, 530003, China.
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Khan A, Oliveira J, Lee YS, Guest JD, Silvera R, Pressman Y, Pearse DD, Nettina AE, Goldschmidt-Clermont PJ, Al-Ali H, Williams I, Levi AD, Dietrich WD. Human Schwann Cell-Derived Extracellular Vesicle Isolation, Bioactivity Assessment, and Omics Characterization. Int J Nanomedicine 2025; 20:4123-4144. [PMID: 40201152 PMCID: PMC11977562 DOI: 10.2147/ijn.s500159] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2024] [Accepted: 02/05/2025] [Indexed: 04/10/2025] Open
Abstract
Purpose Schwann cell-derived extracellular vesicles (SCEVs) have demonstrated favorable effects in spinal cord, peripheral nerve, and brain injuries. Herein, a scalable, standardized, and efficient isolation methodology of SCEVs obtaining a high yield with a consistent composition as measured by proteomic, lipidomic, and miRNA analysis of their content is described for future clinical use. Methods Human Schwann cells were obtained ethically from nine donors and cultured in a defined growth medium optimized for proliferation. At confluency, the culture was replenished with an isolation medium for 48 hours, then collected and centrifuged sequentially at low and ultra-high speeds to collect purified EVs. The EVs were characterized with mass spectrometry to identify and quantify proteins, lipidomic analysis to assess lipid composition, and next-generation sequencing to confirm miRNA profiles. Each batch of EVs was assessed to ensure their therapeutic potential in promoting neurite outgrowth and cell survival. Results High yields of SCEVs were consistently obtained with similar comprehensive molecular profiles across samples, indicating the reproducibility and reliability of the isolation method. Bioactivity to increase neurite process growth was confirmed in vitro. The predominance of triacylglycerol and phosphatidylcholine suggested its role in cellular membrane dynamics essential for axon regeneration and inflammation mitigation. Of the 2517 identified proteins, 136 were closely related to nervous system repair and regeneration. A total of 732 miRNAs were cataloged, with the top 30 miRNAs potentially contributing to axon growth, neuroprotection, myelination, angiogenesis, the attenuation of neuroinflammation, and key signaling pathways such as VEGFA-VEGFR2 and PI3K-Akt signaling, which are crucial for nervous system repair. Conclusion The study establishes a robust framework for SCEV isolation and their comprehensive characterization, which is consistent with their therapeutic potential in neurological applications. This work provides a valuable proteomic, lipidomic, and miRNA dataset to inform future advancements in applying SCEV to the experimental treatment of neurological injuries and diseases.
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Affiliation(s)
- Aisha Khan
- Interdisciplinary Stem Cell Institute, Miller School of Medicine, University of Miami, Miami, FL, USA
- The Miami Project to Cure Paralysis, Miller School of Medicine, University of Miami, Miami, FL, USA
| | - Julia Oliveira
- The Miami Project to Cure Paralysis, Miller School of Medicine, University of Miami, Miami, FL, USA
| | - Yee-Shuan Lee
- Interdisciplinary Stem Cell Institute, Miller School of Medicine, University of Miami, Miami, FL, USA
| | - James D Guest
- The Miami Project to Cure Paralysis, Miller School of Medicine, University of Miami, Miami, FL, USA
- Neurological Surgery, Miller School of Medicine, University of Miami, Miami, FL, USA
| | - Risset Silvera
- The Miami Project to Cure Paralysis, Miller School of Medicine, University of Miami, Miami, FL, USA
| | - Yelena Pressman
- The Miami Project to Cure Paralysis, Miller School of Medicine, University of Miami, Miami, FL, USA
| | - Damien D Pearse
- The Miami Project to Cure Paralysis, Miller School of Medicine, University of Miami, Miami, FL, USA
- Neurological Surgery, Miller School of Medicine, University of Miami, Miami, FL, USA
| | - Adriana E Nettina
- Interdisciplinary Stem Cell Institute, Miller School of Medicine, University of Miami, Miami, FL, USA
- The Miami Project to Cure Paralysis, Miller School of Medicine, University of Miami, Miami, FL, USA
| | | | - Hassan Al-Ali
- The Miami Project to Cure Paralysis, Miller School of Medicine, University of Miami, Miami, FL, USA
| | - Indigo Williams
- The Miami Project to Cure Paralysis, Miller School of Medicine, University of Miami, Miami, FL, USA
| | - Allan D Levi
- The Miami Project to Cure Paralysis, Miller School of Medicine, University of Miami, Miami, FL, USA
- Neurological Surgery, Miller School of Medicine, University of Miami, Miami, FL, USA
| | - W Dalton Dietrich
- The Miami Project to Cure Paralysis, Miller School of Medicine, University of Miami, Miami, FL, USA
- Neurological Surgery, Miller School of Medicine, University of Miami, Miami, FL, USA
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Li XL, Zhao YQ, Miao L, An YX, Wu F, Han JY, Han JY, Tay FR, Mu Z, Jiao Y, Wang J. Strategies for promoting neurovascularization in bone regeneration. Mil Med Res 2025; 12:9. [PMID: 40025573 PMCID: PMC11874146 DOI: 10.1186/s40779-025-00596-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/13/2024] [Accepted: 01/26/2025] [Indexed: 03/04/2025] Open
Abstract
Bone tissue relies on the intricate interplay between blood vessels and nerve fibers, both are essential for many physiological and pathological processes of the skeletal system. Blood vessels provide the necessary oxygen and nutrients to nerve and bone tissues, and remove metabolic waste. Concomitantly, nerve fibers precede blood vessels during growth, promote vascularization, and influence bone cells by secreting neurotransmitters to stimulate osteogenesis. Despite the critical roles of both components, current biomaterials generally focus on enhancing intraosseous blood vessel repair, while often neglecting the contribution of nerves. Understanding the distribution and main functions of blood vessels and nerve fibers in bone is crucial for developing effective biomaterials for bone tissue engineering. This review first explores the anatomy of intraosseous blood vessels and nerve fibers, highlighting their vital roles in bone embryonic development, metabolism, and repair. It covers innovative bone regeneration strategies directed at accelerating the intrabony neurovascular system over the past 10 years. The issues covered included material properties (stiffness, surface topography, pore structures, conductivity, and piezoelectricity) and acellular biological factors [neurotrophins, peptides, ribonucleic acids (RNAs), inorganic ions, and exosomes]. Major challenges encountered by neurovascularized materials during their clinical translation have also been highlighted. Furthermore, the review discusses future research directions and potential developments aimed at producing bone repair materials that more accurately mimic the natural healing processes of bone tissue. This review will serve as a valuable reference for researchers and clinicians in developing novel neurovascularized biomaterials and accelerating their translation into clinical practice. By bridging the gap between experimental research and practical application, these advancements have the potential to transform the treatment of bone defects and significantly improve the quality of life for patients with bone-related conditions.
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Affiliation(s)
- Xin-Ling Li
- State Key Laboratory of Oral & Maxillofacial Reconstruction and Regeneration, National Clinical Research Center for Oral Diseases, Shaanxi Engineering Research Center for Dental Materials and Advanced Manufacture, Department of Oral Implants, School of Stomatology, The Fourth Military Medical University, Xi'an, 710032, China
| | - Yu-Qing Zhao
- State Key Laboratory of Oral & Maxillofacial Reconstruction and Regeneration, National Clinical Research Center for Oral Diseases, Shaanxi Engineering Research Center for Dental Materials and Advanced Manufacture, Department of Oral Implants, School of Stomatology, The Fourth Military Medical University, Xi'an, 710032, China
| | - Li Miao
- Department of Stomatology, The Seventh Medical Center of PLA General Hospital, Beijing, 100700, China
| | - Yan-Xin An
- Department of General Surgery, The First Affiliated Hospital of Xi'an Medical University, Xi'an, 710077, China
| | - Fan Wu
- State Key Laboratory of Oral & Maxillofacial Reconstruction and Regeneration, National Clinical Research Center for Oral Diseases, Shaanxi Engineering Research Center for Dental Materials and Advanced Manufacture, Department of Oral Implants, School of Stomatology, The Fourth Military Medical University, Xi'an, 710032, China
| | - Jin-Yu Han
- State Key Laboratory of Oral & Maxillofacial Reconstruction and Regeneration, National Clinical Research Center for Oral Diseases, Shaanxi Engineering Research Center for Dental Materials and Advanced Manufacture, Department of Oral Implants, School of Stomatology, The Fourth Military Medical University, Xi'an, 710032, China
| | - Jing-Yuan Han
- State Key Laboratory of Oral & Maxillofacial Reconstruction and Regeneration, National Clinical Research Center for Oral Diseases, Shaanxi Engineering Research Center for Dental Materials and Advanced Manufacture, Department of Oral Implants, School of Stomatology, The Fourth Military Medical University, Xi'an, 710032, China
| | - Franklin R Tay
- Graduate School of Augusta University, Augusta, GA, 30912, USA
| | - Zhao Mu
- State Key Laboratory of Oral & Maxillofacial Reconstruction and Regeneration, School of Stomatology, The Fourth Military Medical University, Xi'an, 710032, China.
| | - Yang Jiao
- Department of Stomatology, The Seventh Medical Center of PLA General Hospital, Beijing, 100700, China.
| | - Jing Wang
- State Key Laboratory of Oral & Maxillofacial Reconstruction and Regeneration, National Clinical Research Center for Oral Diseases, Shaanxi Engineering Research Center for Dental Materials and Advanced Manufacture, Department of Oral Implants, School of Stomatology, The Fourth Military Medical University, Xi'an, 710032, China.
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Doncel-Pérez E, Guízar-Sahagún G, Grijalva-Otero I. From single to combinatorial therapies in spinal cord injuries for structural and functional restoration. Neural Regen Res 2025; 20:660-670. [PMID: 38886932 PMCID: PMC11433899 DOI: 10.4103/nrr.nrr-d-23-01928] [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: 11/25/2023] [Revised: 02/21/2024] [Accepted: 03/20/2024] [Indexed: 06/20/2024] Open
Abstract
Spinal cord injury results in paralysis, sensory disturbances, sphincter dysfunction, and multiple systemic secondary conditions, most arising from autonomic dysregulation. All this produces profound negative psychosocial implications for affected people, their families, and their communities; the financial costs can be challenging for their families and health institutions. Treatments aimed at restoring the spinal cord after spinal cord injury, which have been tested in animal models or clinical trials, generally seek to counteract one or more of the secondary mechanisms of injury to limit the extent of the initial damage. Most published works on structural/functional restoration in acute and chronic spinal cord injury stages use a single type of treatment: a drug or trophic factor, transplant of a cell type, and implantation of a biomaterial. Despite the significant benefits reported in animal models, when translating these successful therapeutic strategies to humans, the result in clinical trials has been considered of little relevance because the improvement, when present, is usually insufficient. Until now, most studies designed to promote neuroprotection or regeneration at different stages after spinal cord injury have used single treatments. Considering the occurrence of various secondary mechanisms of injury in the acute and sub-acute phases of spinal cord injury, it is reasonable to speculate that more than one therapeutic agent could be required to promote structural and functional restoration of the damaged spinal cord. Treatments that combine several therapeutic agents, targeting different mechanisms of injury, which, when used as a single therapy, have shown some benefits, allow us to assume that they will have synergistic beneficial effects. Thus, this narrative review article aims to summarize current trends in the use of strategies that combine therapeutic agents administered simultaneously or sequentially, seeking structural and functional restoration of the injured spinal cord.
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Affiliation(s)
- Ernesto Doncel-Pérez
- Hospital Nacional de Parapléjicos de Toledo, Servicio de Salud de Castilla La Mancha (SESCAM), Toledo, Spain
| | - Gabriel Guízar-Sahagún
- Medical Research Unit for Neurological Diseases, UMAE Hospital de Especialidades, Centro Médico Nacional Siglo XXI, IMSS, Ciudad de México, México
| | - Israel Grijalva-Otero
- Medical Research Unit for Neurological Diseases, UMAE Hospital de Especialidades, Centro Médico Nacional Siglo XXI, IMSS, Ciudad de México, México
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Hajimirzaei P, Tabatabaei FSA, Nasibi-Sis H, Razavian RS, Nasirinezhad F. Schwann cell transplantation for remyelination, regeneration, tissue sparing, and functional recovery in spinal cord injury: A systematic review and meta-analysis of animal studies. Exp Neurol 2025; 384:115062. [PMID: 39579959 DOI: 10.1016/j.expneurol.2024.115062] [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: 08/25/2024] [Revised: 11/02/2024] [Accepted: 11/12/2024] [Indexed: 11/25/2024]
Abstract
INTRODUCTION Spinal cord injury (SCI) is a significant global health challenge that results in profound physical and neurological impairments. Despite progress in medical care, the treatment options for SCI are still restricted and often focus on symptom management rather than promoting neural repair and functional recovery. This study focused on clarifying the impact of Schwann cell (SC) transplantation on the molecular, cellular, and functional basis of recovery in animal models of SCI. MATERIAL AND METHODS Relevant studies were identified by conducting searches across multiple databases, which included PubMed, Web of Science, Scopus, and ProQuest. The data were analyzed via comprehensive meta-analysis software. We assessed the risk of bias via the SYRCLE method. RESULTS The analysis included 59 studies, 48 of which provided quantitative data. The results revealed significant improvements in various outcome variables, including protein zero structures (SMD = 1.66, 95 %CI: 0.96-2.36; p < 0.001; I2 = 49.8 %), peripherally myelinated axons (SMD = 1.81, 95 %CI: 0.99-2.63; p < 0.001; I2 = 39.3 %), biotinylated dextran amine-labeled CST only rostral (SMD = 1.31, 95 % CI: 0.50-2.12, p < 0.01, I2 = 49.7 %), fast blue-labeled reticular formation (SMD = 0.96, 95 %CI: 0.43-1.49, p < 0.001, I2 = 0.0 %), 5-hydroxytryptamine caudally (SMD = 0.83, 95 %CI: 0.36-1.29, p < 0.001, I2 = 17.2 %) and epicenter (SMD = 0.85, 95 %CI: 0.17-1.53, p < 0.05, I2 = 62.7 %), tyrosine hydroxylase caudally (SMD = 1.86, 95 %CI: 1.14-2.59, p < 0.001, I2 = 0.0 %) and epicenter (SMD = 1.82, 95 %CI: 1.18-2.47, p < 0.001, I2 = 0.0 %), cavity volume (SMD = -2.07, 95 %CI: -2.90 - -1.24, p < 0.001, I2 = 67.2 %), and Basso, Beattie, and Bresnahan (SMD = 1.26, 95 %CI: 0.93-1.58; p < 0.001; I2 = 79.4 %). CONCLUSIONS This study demonstrates the promising potential of SC transplantation as a therapeutic approach for SCI, clarifying its impact on various biological processes critical for recovery.
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Affiliation(s)
- Pooya Hajimirzaei
- Department of Radiation Sciences, Allied Medicine Faculty, Iran University of Medical Sciences, Tehran, Iran; Radiation Biology Research Center, Iran University of Medical Sciences, Tehran, Iran
| | | | - Hamed Nasibi-Sis
- Department of Medical Library and Information Sciences, School of Allied Medical Sciences, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | | | - Farinaz Nasirinezhad
- Department of Physiology, School of Medicine, Iran University of Medical Sciences, Tehran, Iran; Physiology Research Center, Iran University of Medical sciences, Tehran, Iran; Center of Experimental and Comparative Study, Iran University of Medical sciences, Tehran, Iran.
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Toader C, Dumitru AV, Eva L, Serban M, Covache-Busuioc RA, Ciurea AV. Nanoparticle Strategies for Treating CNS Disorders: A Comprehensive Review of Drug Delivery and Theranostic Applications. Int J Mol Sci 2024; 25:13302. [PMID: 39769066 PMCID: PMC11676454 DOI: 10.3390/ijms252413302] [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: 11/05/2024] [Revised: 12/06/2024] [Accepted: 12/10/2024] [Indexed: 01/11/2025] Open
Abstract
This review aims to address the significant challenges of treating central nervous system (CNS) disorders such as neurodegenerative diseases, strokes, spinal cord injuries, and brain tumors. These disorders are difficult to manage due to the complexity of disease mechanisms and the protective blood-brain barrier (BBB), which restricts drug delivery. Recent advancements in nanoparticle (NP) technologies offer promising solutions, with potential applications in drug delivery, neuroprotection, and neuroregeneration. By examining current research, we explore how NPs can cross the BBB, deliver medications directly to targeted CNS regions, and enhance both diagnostics and treatment. Key NP strategies, such as passive targeting, receptor-mediated transport, and stimuli-responsive systems, demonstrate encouraging results. Studies show that NPs may improve drug delivery, minimize side effects, and increase therapeutic effectiveness in models of Alzheimer's, Parkinson's, stroke, and glioblastoma. NP technologies thus represent a promising approach for CNS disorder management, combining drug delivery and diagnostic capabilities to enable more precise and effective treatments that could significantly benefit patient outcomes.
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Affiliation(s)
- Corneliu Toader
- Department of Neurosurgery, “Carol Davila” University of Medicine and Pharmacy, 050474 Bucharest, Romania; (C.T.); (M.S.); (R.-A.C.-B.); (A.V.C.)
- Department of Vascular Neurosurgery, National Institute of Neurology and Neurovascular Diseases, 077160 Bucharest, Romania
| | - Adrian Vasile Dumitru
- Department of Pathology, “Carol Davila” University of Medicine and Pharmacy, 050474 Bucharest, Romania
- Department of Pathology, University Emergency Hospital of Bucharest, 050098 Bucharest, Romania
| | - Lucian Eva
- Department of Neurosurgery, Dunarea de Jos University, 800010 Galati, Romania
- Department of Neurosurgery, Clinical Emergency Hospital “Prof. Dr. Nicolae Oblu”, 700309 Iasi, Romania
| | - Matei Serban
- Department of Neurosurgery, “Carol Davila” University of Medicine and Pharmacy, 050474 Bucharest, Romania; (C.T.); (M.S.); (R.-A.C.-B.); (A.V.C.)
| | - Razvan-Adrian Covache-Busuioc
- Department of Neurosurgery, “Carol Davila” University of Medicine and Pharmacy, 050474 Bucharest, Romania; (C.T.); (M.S.); (R.-A.C.-B.); (A.V.C.)
- Department of Vascular Neurosurgery, National Institute of Neurology and Neurovascular Diseases, 077160 Bucharest, Romania
| | - Alexandru Vlad Ciurea
- Department of Neurosurgery, “Carol Davila” University of Medicine and Pharmacy, 050474 Bucharest, Romania; (C.T.); (M.S.); (R.-A.C.-B.); (A.V.C.)
- Neurosurgery Department, Sanador Clinical Hospital, 010991 Bucharest, Romania
- Medical Section Within the Romanian Academy, 010071 Bucharest, Romania
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Wang JL, Huang QM, Hu DX, Zhang WJ. Therapeutic effect of exosomes derived from Schwann cells in the repair of peripheral nerve injury. Life Sci 2024; 357:123086. [PMID: 39357794 DOI: 10.1016/j.lfs.2024.123086] [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: 07/18/2024] [Revised: 09/22/2024] [Accepted: 09/28/2024] [Indexed: 10/04/2024]
Abstract
Peripheral nerve injury (PNI) can cause nerve demyelination, neuronal apoptosis, axonal atrophy, inflammatory infiltration, glial scar formation, and other pathologies that can lead to sensory and motor dysfunction and seriously affect the psychosomatic health of patients. There is currently no effective treatment method, so exploring a promising treatment method is of great significance. Several studies have revealed the therapeutic roles of Schwann cells (SCs) and their exosomes in nerve injury repair. Exosomes are extracellular nanovesicles secreted by cells that act as key molecules in intercellular communication. Progress has been made in understanding the role of exosomes derived from SCs (SC-EXOs) in peripheral nerve regeneration, including the promotion of axonal regeneration and myelin formation, anti-inflammation, vascular regeneration, neuroprotection, and neuroregulation. Therefore, in this paper, we summarize the functional characteristics of SC-EXOs and discuss their potential therapeutic effects on PNI repair as well as some existing problems and future challenges.
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Affiliation(s)
- Jia-Ling Wang
- The Second Affiliated Hospital, Jiangxi Medical College, Nanchang University, Nanchang City, Jiangxi Province 343000, China
| | - Qi-Ming Huang
- The Second Affiliated Hospital, Jiangxi Medical College, Nanchang University, Nanchang City, Jiangxi Province 343000, China
| | - Dong-Xia Hu
- Department of Rehabilitation Medicine, The Second Affiliated Hospital, Jiangxi Medical College, Nanchang University, Nanchang City, Jiangxi Province 343000, China
| | - Wen-Jun Zhang
- Department of Rehabilitation Medicine, The Second Affiliated Hospital, Jiangxi Medical College, Nanchang University, Nanchang City, Jiangxi Province 343000, China.
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Li Y, Luo W, Meng C, Shi K, Gu R, Cui S. Exosomes as promising bioactive materials in the treatment of spinal cord injury. Stem Cell Res Ther 2024; 15:335. [PMID: 39334506 PMCID: PMC11438208 DOI: 10.1186/s13287-024-03952-5] [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: 07/31/2024] [Accepted: 09/18/2024] [Indexed: 09/30/2024] Open
Abstract
Patients with spinal cord injury (SCI) have permanent devastating motor and sensory disabilities. Secondary SCI is known for its complex progression and presents with sophisticated aberrant inflammation, vascular changes, and secondary cellular dysfunction, which aggravate the primary damage. Since their initial discovery, the potent neuroprotective effects and powerful delivery abilities of exosomes (Exos) have been reported in different research fields, including SCI. In this study, we summarize therapeutic advances related to the application of Exos in preclinical animal studies. Subsequently, we discuss the mechanisms of action of Exos derived from diverse cell types, including neurogenesis, angiogenesis, blood-spinal cord barrier preservation, anti-apoptosis, and anti-inflammatory potential. We also evaluate the relationship between the Exo delivery cargo and signaling pathways. Finally, we discuss the challenges and advantages of using Exos to offer innovative insights regarding the development of efficient clinical strategies for SCI.
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Affiliation(s)
- Yueying Li
- Department of Hand and Foot Surgery, China-Japan Union Hospital of Jilin University, No. 126 Xiantai Street, Changchun, Jilin, 130033, P.R. China
- Key Laboratory of Peripheral Nerve Injury and Regeneration of Jilin Province, No. 126 Xiantai Street, Changchun, Jilin, 130033, P.R. China
| | - Wenqi Luo
- Department of Orthopaedic Surgery, China-Japan Union Hospital of Jilin University, No. 126 Xiantai Street, Changchun, Jilin, 130033, P.R. China
| | - Chuikai Meng
- Department of Hand and Foot Surgery, China-Japan Union Hospital of Jilin University, No. 126 Xiantai Street, Changchun, Jilin, 130033, P.R. China
- Key Laboratory of Peripheral Nerve Injury and Regeneration of Jilin Province, No. 126 Xiantai Street, Changchun, Jilin, 130033, P.R. China
| | - Kaiyuan Shi
- Department of Hand and Foot Surgery, China-Japan Union Hospital of Jilin University, No. 126 Xiantai Street, Changchun, Jilin, 130033, P.R. China
- Key Laboratory of Peripheral Nerve Injury and Regeneration of Jilin Province, No. 126 Xiantai Street, Changchun, Jilin, 130033, P.R. China
| | - Rui Gu
- Department of Orthopaedic Surgery, China-Japan Union Hospital of Jilin University, No. 126 Xiantai Street, Changchun, Jilin, 130033, P.R. China.
| | - Shusen Cui
- Department of Hand and Foot Surgery, China-Japan Union Hospital of Jilin University, No. 126 Xiantai Street, Changchun, Jilin, 130033, P.R. China.
- Key Laboratory of Peripheral Nerve Injury and Regeneration of Jilin Province, No. 126 Xiantai Street, Changchun, Jilin, 130033, P.R. China.
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10
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Wang L, Lu X, Szalad A, Liu XS, Zhang Y, Wang X, Golembieski WA, Powell B, Mccann M, Lu M, Chopp M, Zhang ZG. Schwann cell-derived exosomes ameliorate peripheral neuropathy induced by ablation of dicer in Schwann cells. Front Cell Neurosci 2024; 18:1462228. [PMID: 39285940 PMCID: PMC11402728 DOI: 10.3389/fncel.2024.1462228] [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: 07/09/2024] [Accepted: 08/20/2024] [Indexed: 09/19/2024] Open
Abstract
Background MicroRNAs (miRNAs) in Schwann cells (SCs) mediate peripheral nerve function. Ablating Dicer, a key gene in miRNA biogenesis, in SCs causes peripheral neuropathy. Exosomes from healthy SCs (SC-Exo) ameliorate diabetic peripheral neuropathy in part via miRNAs. Thus, using transgenic mice with conditional and inducible ablation of Dicer in proteolipid protein (PLP) expressing SCs (PLP-cKO), we examined whether SC-Exo could reduce peripheral neuropathy in PLP-cKO mice. Methods PLP-cKO mice at the age of 16 weeks (8 week post-Tamoxifen) were randomly treated with SC-Exo or saline weekly for 8 weeks. Age-and sex-matched wild-type (WT) littermates were used as controls. Peripheral neurological functions, sciatic nerve integrity, and myelination were analyzed. Quantitative RT-PCR and Western blot analyses were performed to examine miRNA and protein expression in sciatic nerve tissues, respectively. Results Compared to the WT mice, PLP-cKO mice exhibited a significant decrease in motor and sensory conduction velocities, thermal sensitivity, and motor coordination. PLP-cKO mice exhibited substantial demyelination and axonal damage of the sciatic nerve. Treatment of PLP-cKO mice with SC-Exo significantly ameliorated the peripheral neuropathy and sciatic nerve damage. PLP-cKO mice showed a substantial reduction in a set of Dicer-related miRNAs known to regulate myelination, axonal integrity, and inflammation such as miR-138, -146a and - 338 in the sciatic nerve. In addition, PLP-cKO mice exhibited significant reduction of myelin forming proteins, early growth response 2 (EGR2) and sex determining region Y-box10 (Sox10), but significantly increased myelination inhibitors, Notch1, c-Jun, and Sox2 and the axonal growth inhibitor phosphatase and tens in homolog (PTEN). However, SC-Exo treatment reversed the PLP-cKO altered miRNAs and proteins. Conclusion This study demonstrates that exogenous SC-Exo ameliorate peripheral neuropathy induced by Dicer ablation in PLP expressing SCs. The therapeutic benefit may be mediated by the SC-Exo altered miRNAs and their targeted genes.
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Affiliation(s)
- Lei Wang
- Department of Neurology, Henry Ford Hospital, Detroit, MI, United States
| | - XueRong Lu
- Department of Neurology, Henry Ford Hospital, Detroit, MI, United States
| | - Alexandra Szalad
- Department of Neurology, Henry Ford Hospital, Detroit, MI, United States
| | - Xian Shuang Liu
- Department of Neurology, Henry Ford Hospital, Detroit, MI, United States
| | - Yi Zhang
- Department of Neurology, Henry Ford Hospital, Detroit, MI, United States
| | - Xinli Wang
- Department of Neurology, Henry Ford Hospital, Detroit, MI, United States
| | | | - Brianna Powell
- Department of Neurology, Henry Ford Hospital, Detroit, MI, United States
| | - Mikkala Mccann
- Department of Neurology, Henry Ford Hospital, Detroit, MI, United States
| | - Mei Lu
- Department of Biostatistics and Research Epidemiology, Henry Ford Hospital, Detroit, MI, United States
| | - Michael Chopp
- Department of Neurology, Henry Ford Hospital, Detroit, MI, United States
- Department of Physics, Oakland University, Rochester, MI, United States
| | - Zheng Gang Zhang
- Department of Neurology, Henry Ford Hospital, Detroit, MI, United States
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11
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Wang H, Zhao C, Rong Q, Cao J, Chen H, Li R, Zhang B, Xu P. The Role of Exosomes from Mesenchymal Stem Cells in Spinal Cord Injury: A Systematic Review. Int J Stem Cells 2024; 17:236-252. [PMID: 38016704 PMCID: PMC11361850 DOI: 10.15283/ijsc23092] [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: 06/15/2023] [Revised: 09/07/2023] [Accepted: 09/18/2023] [Indexed: 11/30/2023] Open
Abstract
Spinal cord injury (SCI) is a serious nervous system disease that usually leads to the impairment of the motor, sensory, and autonomic nervous functions of the spinal cord, and it places a heavy burden on families and healthcare systems every year. Due to the complex pathophysiological mechanism of SCI and the poor ability of neurons to regenerate, the current treatment scheme has very limited effects on the recovery of spinal cord function. In addition, due to their unique advantages, exosomes can be used as carriers for cargo transport. In recent years, some studies have confirmed that treatment with mesenchymal stem cells (MSCs) can promote the recovery of SCI nerve function. The therapeutic effect of MSCs is mainly related to exosomes secreted by MSCs, and exosomes may have great potential in SCI therapy. In this review, we summarized the repair mechanism of mesenchymal stem cells-derived exosomes (MSCs-Exos) in SCI treatment and discussed the microRNAs related to SCI treatment based on MSCs-Exos and their mechanism of action, which is helpful to further understand the role of exosomes in SCI.
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Affiliation(s)
- Haoyu Wang
- Department of Neurology, Affiliated Hospital of Jining Medical University, Jining Medical University, Jining, China
| | - Chunxia Zhao
- Department of Neurology, Affiliated Hospital of Jining Medical University, Jining Medical University, Jining, China
| | - Qingqing Rong
- Department of Neurology, Affiliated Hospital of Jining Medical University, Jining Medical University, Jining, China
| | - Jinghe Cao
- Department of Reproduce, Affiliated Hospital of Jining Medical University, Jining Medical University, Jining, China
| | - Hongyi Chen
- Department of Gastrointestinal Surgery, Affiliated Hospital of Jining Medical University, Jining Medical University, Jining, China
| | - Ruolin Li
- Department of Neurology, Affiliated Hospital of Jining Medical University, Jining Medical University, Jining, China
| | - Bin Zhang
- Institute of Forensic Medicine and Laboratory Medicine, Jining Medical University, Jining, China
| | - Peng Xu
- Department of Neurology, Affiliated Hospital of Jining Medical University, Jining Medical University, Jining, China
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12
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Liao S, Chen Y, Luo Y, Zhang M, Min J. The phenotypic changes of Schwann cells promote the functional repair of nerve injury. Neuropeptides 2024; 106:102438. [PMID: 38749170 DOI: 10.1016/j.npep.2024.102438] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/14/2024] [Revised: 05/08/2024] [Accepted: 05/09/2024] [Indexed: 06/17/2024]
Abstract
Functional recovery after nerve injury is a significant challenge due to the complex nature of nerve injury repair and the non-regeneration of neurons. Schwann cells (SCs), play a crucial role in the nerve injury repair process because of their high plasticity, secretion, and migration abilities. Upon nerve injury, SCs undergo a phenotypic change and redifferentiate into a repair phenotype, which helps in healing by recruiting phagocytes, removing myelin fragments, promoting axon regeneration, and facilitating myelin formation. However, the repair phenotype can be unstable, limiting the effectiveness of the repair. Recent research has found that transplantation of SCs can be an effective treatment option, therefore, it is essential to comprehend the phenotypic changes of SCs and clarify the related mechanisms to develop the transplantation therapy further.
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Affiliation(s)
- Shufen Liao
- The Second Affiliated Hospital, Jiangxi Medical College, Nanchang University, China
| | - Yan Chen
- The Second Affiliated Hospital, Jiangxi Medical College, Nanchang University, China
| | - Yin Luo
- The Second Affiliated Hospital, Jiangxi Medical College, Nanchang University, China
| | - Mengqi Zhang
- The Second Affiliated Hospital, Jiangxi Medical College, Nanchang University, China
| | - Jun Min
- Neurology Department, The Second Affiliated Hospital, Jiangxi Medical College, Nanchang University, China.
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13
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Zhou Y, Zhang Y, Xu J, Wang Y, Yang Y, Wang W, Gu A, Han B, Shurin GV, Zhong R, Shurin MR, Zhong H. Schwann cell-derived exosomes promote lung cancer progression via miRNA-21-5p. Glia 2024; 72:692-707. [PMID: 38192185 DOI: 10.1002/glia.24497] [Citation(s) in RCA: 14] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2023] [Revised: 11/22/2023] [Accepted: 12/11/2023] [Indexed: 01/10/2024]
Abstract
Schwann cells (SCs), the primary glial cells of the peripheral nervous system, which have been identified in many solid tumors, play an important role in cancer development and progression by shaping the tumor immunoenvironment and supporting the development of metastases. Using different cellular, molecular, and genetic approaches with integrated bioinformatics analysis and functional assays, we revealed the role of human SC-derived exosomal miRNAs in lung cancer progression in vitro and in vivo. We found that exosomal miRNA-21 from SCs up-regulated the proliferation, motility, and invasiveness of human lung cancer cells in vitro, which requires functional Rab small GTPases Rab27A and Rab27B in SCs for exosome release. We also revealed that SC exosomal miRNA-21-5p regulated the functional activation of tumor cells by targeting metalloprotease inhibitor RECK in tumor cells. Integrated bioinformatic analyses showed that hsa-miRNA-21-5p is associated with poor prognosis in patients with lung adenocarcinoma and can promote lung cancer progression through multiple signaling pathways including the MAPK, PI3K/Akt, and TNF signaling. Furthermore, in mouse xenograft models, SC exosomes and SC exosomal hsa-miRNA-21-5p augmented human lung cancer cell growth and lymph node metastasis in vivo. Together our data revealed, for the first time, that SC-secreted exosomes and exosomal miRNA-21-5p promoted the proliferation, motility, and spreading of human lung cancer cells in vitro and in vivo. Thus, exosomal miRNA-21 may play an oncogenic role in SC-accelerated progression of lung cancer and this pathway may serve as a new therapeutic target for further evaluation.
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Affiliation(s)
- Yan Zhou
- Department of Respiratory and Critical Care Medicine, Shanghai Chest Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Yao Zhang
- Department of Respiratory and Critical Care Medicine, Shanghai Chest Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Jianlin Xu
- Department of Respiratory and Critical Care Medicine, Shanghai Chest Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Yue Wang
- Department of Respiratory and Critical Care Medicine, Shanghai Chest Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Yu Yang
- Department of Respiratory and Critical Care Medicine, Shanghai Chest Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Weimin Wang
- Department of Respiratory and Critical Care Medicine, Shanghai Chest Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Aiqin Gu
- Department of Respiratory and Critical Care Medicine, Shanghai Chest Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Baohui Han
- Department of Respiratory and Critical Care Medicine, Shanghai Chest Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Galina V Shurin
- Department of Pathology, University of Pittsburgh Medical Center, Pittsburgh, Pennsylvania, USA
| | - Runbo Zhong
- Department of Respiratory and Critical Care Medicine, Shanghai Chest Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Michael R Shurin
- Department of Pathology, University of Pittsburgh Medical Center, Pittsburgh, Pennsylvania, USA
- Department of Immunology, University of Pittsburgh Medical Center, Pittsburgh, Pennsylvania, USA
| | - Hua Zhong
- Department of Respiratory and Critical Care Medicine, Shanghai Chest Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
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14
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Nie X, Yuan T, Yu T, Yun Z, Yu T, Liu Q. Non-stem cell-derived exosomes: a novel therapeutics for neurotrauma. J Nanobiotechnology 2024; 22:108. [PMID: 38475766 DOI: 10.1186/s12951-024-02380-0] [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: 10/23/2023] [Accepted: 02/29/2024] [Indexed: 03/14/2024] Open
Abstract
Neurotrauma, encompassing traumatic brain injuries (TBI) and spinal cord injuries (SCI) impacts a significant portion of the global population. While spontaneous recovery post-TBI or SCI is possible, recent advancements in cell-based therapies aim to bolster these natural reparative mechanisms. Emerging research indicates that the beneficial outcomes of such therapies might be largely mediated by exosomes secreted from the administered cells. While stem cells have garnered much attention, exosomes derived from non-stem cells, including neurons, Schwann cells, microglia, and vascular endothelial cells, have shown notable therapeutic potential. These exosomes contribute to angiogenesis, neurogenesis, and axon remodeling, and display anti-inflammatory properties, marking them as promising agents for neurorestorative treatments. This review provides an in-depth exploration of the current methodologies, challenges, and future directions regarding the therapeutic role of non-stem cell-derived exosomes in neurotrauma.
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Affiliation(s)
- Xinyu Nie
- Department of Orthopaedic, The second hospital of Jilin University, Changchun, China
| | - Tianyang Yuan
- Department of Orthopaedic, The second hospital of Jilin University, Changchun, China
| | - Tong Yu
- Department of Orthopaedic, The second hospital of Jilin University, Changchun, China
| | - Zhihe Yun
- Department of Orthopaedic, The second hospital of Jilin University, Changchun, China
| | - Tao Yu
- Department of Orthopaedic, The second hospital of Jilin University, Changchun, China
| | - Qinyi Liu
- Department of Orthopaedic, The second hospital of Jilin University, Changchun, China.
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15
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Yu T, Yang LL, Zhou Y, Wu MF, Jiao JH. Exosome-mediated repair of spinal cord injury: a promising therapeutic strategy. Stem Cell Res Ther 2024; 15:6. [PMID: 38167108 PMCID: PMC10763489 DOI: 10.1186/s13287-023-03614-y] [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: 08/04/2023] [Accepted: 12/12/2023] [Indexed: 01/05/2024] Open
Abstract
Spinal cord injury (SCI) is a catastrophic injury to the central nervous system (CNS) that can lead to sensory and motor dysfunction, which seriously affects patients' quality of life and imposes a major economic burden on society. The pathological process of SCI is divided into primary and secondary injury, and secondary injury is a cascade of amplified responses triggered by the primary injury. Due to the complexity of the pathological mechanisms of SCI, there is no clear and effective treatment strategy in clinical practice. Exosomes, which are extracellular vesicles of endoplasmic origin with a diameter of 30-150 nm, play a critical role in intercellular communication and have become an ideal vehicle for drug delivery. A growing body of evidence suggests that exosomes have great potential for repairing SCI. In this review, we introduce exosome preparation, functions, and administration routes. In addition, we summarize the effect and mechanism by which various exosomes repair SCI and review the efficacy of exosomes in combination with other strategies to repair SCI. Finally, the challenges and prospects of the use of exosomes to repair SCI are described.
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Affiliation(s)
- Tong Yu
- Department of Orthopedic, The Second Norman Bethune Hospital of Jilin University, Changchun, 130000, Jilin Province, China
| | - Li-Li Yang
- Department of Orthopedic, The Second Norman Bethune Hospital of Jilin University, Changchun, 130000, Jilin Province, China
| | - Ying Zhou
- Department of Operating Room, The Third Hospital of Qinhuangdao, Qinhuangdao, 066000, Hebei Province, China
| | - Min-Fei Wu
- Department of Orthopedic, The Second Norman Bethune Hospital of Jilin University, Changchun, 130000, Jilin Province, China
| | - Jian-Hang Jiao
- Department of Orthopedic, The Second Norman Bethune Hospital of Jilin University, Changchun, 130000, Jilin Province, China.
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16
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Ghosh M, Pearse DD. Schwann Cell-Derived Exosomal Vesicles: A Promising Therapy for the Injured Spinal Cord. Int J Mol Sci 2023; 24:17317. [PMID: 38139147 PMCID: PMC10743801 DOI: 10.3390/ijms242417317] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2023] [Revised: 12/02/2023] [Accepted: 12/06/2023] [Indexed: 12/24/2023] Open
Abstract
Exosomes are nanoscale-sized membrane vesicles released by cells into their extracellular milieu. Within these nanovesicles reside a multitude of bioactive molecules, which orchestrate essential biological processes, including cell differentiation, proliferation, and survival, in the recipient cells. These bioactive properties of exosomes render them a promising choice for therapeutic use in the realm of tissue regeneration and repair. Exosomes possess notable positive attributes, including a high bioavailability, inherent safety, and stability, as well as the capacity to be functionalized so that drugs or biological agents can be encapsulated within them or to have their surface modified with ligands and receptors to imbue them with selective cell or tissue targeting. Remarkably, their small size and capacity for receptor-mediated transcytosis enable exosomes to cross the blood-brain barrier (BBB) and access the central nervous system (CNS). Unlike cell-based therapies, exosomes present fewer ethical constraints in their collection and direct use as a therapeutic approach in the human body. These advantageous qualities underscore the vast potential of exosomes as a treatment option for neurological injuries and diseases, setting them apart from other cell-based biological agents. Considering the therapeutic potential of exosomes, the current review seeks to specifically examine an area of investigation that encompasses the development of Schwann cell (SC)-derived exosomal vesicles (SCEVs) as an approach to spinal cord injury (SCI) protection and repair. SCs, the myelinating glia of the peripheral nervous system, have a long history of demonstrated benefit in repair of the injured spinal cord and peripheral nerves when transplanted, including their recent advancement to clinical investigations for feasibility and safety in humans. This review delves into the potential of utilizing SCEVs as a therapy for SCI, explores promising engineering strategies to customize SCEVs for specific actions, and examines how SCEVs may offer unique clinical advantages over SC transplantation for repair of the injured spinal cord.
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Affiliation(s)
- Mousumi Ghosh
- The Miami Project to Cure Paralysis, University of Miami Miller School of Medicine, Miami, FL 33136, USA;
- The Department of Neurological Surgery, University of Miami Miller School of Medicine, Miami, FL 33136, USA
- Department of Veterans Affairs, Veterans Affairs Medical Center, Miami, FL 33136, USA
| | - Damien D. Pearse
- The Miami Project to Cure Paralysis, University of Miami Miller School of Medicine, Miami, FL 33136, USA;
- The Department of Neurological Surgery, University of Miami Miller School of Medicine, Miami, FL 33136, USA
- Department of Veterans Affairs, Veterans Affairs Medical Center, Miami, FL 33136, USA
- The Interdisciplinary Stem Cell Institute, University of Miami Miller School of Medicine, Miami, FL 33136, USA
- The Neuroscience Program, University of Miami Miller School of Medicine, Miami, FL 33136, USA
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17
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Lee HY, Moon SH, Kang D, Choi E, Yang GH, Kim KN, Won JY, Yi S. A multi-channel collagen conduit with aligned Schwann cells and endothelial cells for enhanced neuronal regeneration in spinal cord injury. Biomater Sci 2023; 11:7884-7896. [PMID: 37906468 DOI: 10.1039/d3bm01152f] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/02/2023]
Abstract
Traumatic spinal cord injury (SCI) leads to Wallerian degeneration and the accompanying disruption of vasculature leads to ischemia, which damages motor and sensory function. Therefore, understanding the biological environment during regeneration is essential to promote neuronal regeneration and overcome this phenomenon. The band of Büngner is a structure of an aligned Schwann cell (SC) band that guides axon elongation providing a natural recovery environment. During axon elongation, SCs promote axon elongation while migrating along neovessels (endothelial cells [ECs]). To model this, we used extrusion 3D bioprinting to develop a multi-channel conduit (MCC) using collagen for the matrix region and sacrificial alginate to make the channel. The MCC was fabricated with a structure in which SCs and ECs were longitudinally aligned to mimic the sophisticated recovering SCI conditions. Also, we produced an MCC with different numbers of channels. The aligned SCs and ECs in the 9-channel conduit (9MCC-SE) were more biocompatible and led to more proliferation than the 5-channel conduit (5MCC-SE) in vitro. Also, the 9MCC-SE resulted in a greater healing effect than the 5MCC-SE with respect to neuronal regeneration, remyelination, inflammation, and angiogenesis in vivo. The above tissue recovery results led to motor function repair. Our results show that our 9MCC-SE model represents a new therapeutic strategy for SCI.
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Affiliation(s)
- Hye Yeong Lee
- Spine & Spinal Cord Institute, Department of Neurosurgery, College of Medicine, Yonsei University, 134 Sinchon-dong, Seodaemun-gu, Seoul 03722, Republic of Korea.
| | - Seo Hyun Moon
- Spine & Spinal Cord Institute, Department of Neurosurgery, College of Medicine, Yonsei University, 134 Sinchon-dong, Seodaemun-gu, Seoul 03722, Republic of Korea.
| | - Donggu Kang
- Research Institute of Additive Manufacturing and Regenerative Medicine, Baobab Healthcare Inc., 55 Hanyangdaehak-Ro, Ansan, Gyeonggi-Do, 15588, South Korea
| | - Eunjeong Choi
- Research Institute of Additive Manufacturing and Regenerative Medicine, Baobab Healthcare Inc., 55 Hanyangdaehak-Ro, Ansan, Gyeonggi-Do, 15588, South Korea
| | - Gi Hoon Yang
- Research Institute of Additive Manufacturing and Regenerative Medicine, Baobab Healthcare Inc., 55 Hanyangdaehak-Ro, Ansan, Gyeonggi-Do, 15588, South Korea
| | - Keung Nyun Kim
- Spine & Spinal Cord Institute, Department of Neurosurgery, College of Medicine, Yonsei University, 134 Sinchon-dong, Seodaemun-gu, Seoul 03722, Republic of Korea.
| | - Joo Yun Won
- Clinical & Translational Research Institute, Anymedi INC., Seoul, South Korea
| | - Seong Yi
- Spine & Spinal Cord Institute, Department of Neurosurgery, College of Medicine, Yonsei University, 134 Sinchon-dong, Seodaemun-gu, Seoul 03722, Republic of Korea.
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18
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Roy V, Paquet A, Touzel-Deschênes L, Khuong HT, Dupré N, Gros-Louis F. Heterozygous NF1 dermal fibroblasts modulate exosomal content to promote angiogenesis in a tissue-engineered skin model of neurofibromatosis type-1. J Neurochem 2023; 167:556-570. [PMID: 37837197 DOI: 10.1111/jnc.15982] [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: 06/15/2023] [Revised: 09/01/2023] [Accepted: 09/23/2023] [Indexed: 10/15/2023]
Abstract
Neovascularization is a critical process in tumor progression and malignant transformation associated with neurofibromatosis type 1 (NF1). Indeed, fibroblasts are known to play a key role in the tumoral microenvironment modification by producing an abundant collagenous matrix, but their contribution in paracrine communication pathways is poorly understood. Here, we hypothesized that NF1 heterozygosis in human dermal fibroblasts could promote angiogenesis through exosomes secretion. The purposes of this study are to identify the NF1 fibroblast-derived exosome protein contents and to determine their proangiogenic activity. Angiogenic proteome measurement confirmed the overexpression of VEGF and other proteins involved in vascularization. Tube formation of microvascular endothelial cells was also enhanced in presence of exosomes derived from NF1 skin fibroblasts. NF1 tissue-engineered skin (NF1-TES) generation showed a significantly denser microvessels networks compared to healthy controls. The reduction of exosomes production with an inhibitor treatment demonstrated a drastic decrease in blood vessel formation within the dermis. Our results suggest that NF1 haploinsufficiency alters the dermal fibroblast function and creates a pro-angiogenic signal via exosomes, which increases the capillary formation. This study highlights the potential of targeting exosome secretion and angiogenesis for therapeutic interventions in NF1.
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Affiliation(s)
- Vincent Roy
- Department of Surgery, Faculty of Medicine, Laval University, Quebec City, Quebec, Canada
- Division of Regenerative Medicine, CHU de Quebec Research Center, Laval University, Quebec City, Quebec, Canada
| | - Alexandre Paquet
- Department of Surgery, Faculty of Medicine, Laval University, Quebec City, Quebec, Canada
- Division of Regenerative Medicine, CHU de Quebec Research Center, Laval University, Quebec City, Quebec, Canada
| | - Lydia Touzel-Deschênes
- Department of Surgery, Faculty of Medicine, Laval University, Quebec City, Quebec, Canada
- Division of Regenerative Medicine, CHU de Quebec Research Center, Laval University, Quebec City, Quebec, Canada
| | - Hélène T Khuong
- Department of Surgery, Faculty of Medicine, Laval University, Quebec City, Quebec, Canada
- Division of Regenerative Medicine, CHU de Quebec Research Center, Laval University, Quebec City, Quebec, Canada
| | - Nicolas Dupré
- Division of Regenerative Medicine, CHU de Quebec Research Center, Laval University, Quebec City, Quebec, Canada
- Department of Neurological Sciences, Faculty of Medicine, Laval University, Quebec City, Quebec, Canada
| | - Francois Gros-Louis
- Department of Surgery, Faculty of Medicine, Laval University, Quebec City, Quebec, Canada
- Division of Regenerative Medicine, CHU de Quebec Research Center, Laval University, Quebec City, Quebec, Canada
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19
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Oliveira JT, Yanick C, Wein N, Gomez Limia CE. Neuron-Schwann cell interactions in peripheral nervous system homeostasis, disease, and preclinical treatment. Front Cell Neurosci 2023; 17:1248922. [PMID: 37900588 PMCID: PMC10600466 DOI: 10.3389/fncel.2023.1248922] [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: 06/27/2023] [Accepted: 09/19/2023] [Indexed: 10/31/2023] Open
Abstract
Schwann cells (SCs) have a critical role in the peripheral nervous system. These cells are able to support axons during homeostasis and after injury. However, mutations in genes associated with the SCs repair program or myelination result in dysfunctional SCs. Several neuropathies such as Charcot-Marie-Tooth (CMT) disease, diabetic neuropathy and Guillain-Barré syndrome show abnormal SC functions and an impaired regeneration process. Thus, understanding SCs-axon interaction and the nerve environment in the context of homeostasis as well as post-injury and disease onset is necessary. Several neurotrophic factors, cytokines, and regulators of signaling pathways associated with proliferation, survival and regeneration are involved in this process. Preclinical studies have focused on the discovery of therapeutic targets for peripheral neuropathies and injuries. To study the effect of new therapeutic targets, modeling neuropathies and peripheral nerve injuries (PNIs) in vitro and in vivo are useful tools. Furthermore, several in vitro protocols have been designed using SCs and neuron cell lines to evaluate these targets in the regeneration process. SCs lines have been used to generate effective myelinating SCs without success. Alternative options have been investigated using direct conversion from somatic cells to SCs or SCs derived from pluripotent stem cells to generate functional SCs. This review will go over the advantages of these systems and the problems associated with them. In addition, there have been challenges in establishing adequate and reproducible protocols in vitro to recapitulate repair SC-neuron interactions observed in vivo. So, we also discuss the mechanisms of repair SCs-axon interactions in the context of peripheral neuropathies and nerve injury (PNI) in vitro and in vivo. Finally, we summarize current preclinical studies evaluating transgenes, drug, and novel compounds with translational potential into clinical studies.
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Affiliation(s)
| | | | - Nicolas Wein
- Center for Gene Therapy, Abigail Wexner Research Institute at Nationwide Children’s Hospital, Columbus, OH, United States
- Department of Pediatrics, The Ohio State University, Columbus, OH, United States
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Zhiguo F, Ji W, Shenyuan C, Guoyou Z, Chen K, Hui Q, Wenrong X, Zhai X. A swift expanding trend of extracellular vesicles in spinal cord injury research: a bibliometric analysis. J Nanobiotechnology 2023; 21:289. [PMID: 37612689 PMCID: PMC10463993 DOI: 10.1186/s12951-023-02051-6] [Citation(s) in RCA: 20] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2023] [Accepted: 08/04/2023] [Indexed: 08/25/2023] Open
Abstract
Extracellular vesicles (EVs) in the field of spinal cord injury (SCI) have garnered significant attention for their potential applications in diagnosis and therapy. However, no bibliometric assessment has been conducted to evaluate the scientific progress in this area. A search of articles in Web of Science (WoS) from January 1, 1991, to May 1, 2023, yielded 359 papers that were analyzed using various online analysis tools. These articles have been cited 10,842 times with 30.2 times per paper. The number of publications experienced explosive growth starting in 2015. China and the United States led this research initiative. Keywords were divided into 3 clusters, including "Pathophysiology of SCI", "Bioactive components of EVs", and "Therapeutic effects of EVs in SCI". By integrating the average appearing year (AAY) of keywords in VoSviewer with the time zone map of the Citation Explosion in CiteSpace, the focal point of research has undergone a transformative shift. The emphasis has moved away from pathophysiological factors such as "axon", "vesicle", and "glial cell" to more mechanistic and applied domains such as "activation", "pathways", "hydrogels" and "therapy". In conclusions, institutions are expected to allocate more resources towards EVs-loaded hydrogel therapy and the utilization of innovative materials for injury mitigation.
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Affiliation(s)
- Fan Zhiguo
- Department of Orthopedics, Shanghai Changhai Hospital, Shanghai, 200433, China
| | - Wu Ji
- Department of Orthopedics, Shanghai Changhai Hospital, Shanghai, 200433, China
| | - Chen Shenyuan
- Key Laboratory of Laboratory Medicine of Jiangsu Province, School of Medicine, Jiangsu University, Zhenjiang, China
| | - Zhang Guoyou
- Department of Orthopedics, Shanghai Changhai Hospital, Shanghai, 200433, China
| | - Kai Chen
- Department of Orthopedics, Shanghai Changhai Hospital, Shanghai, 200433, China.
| | - Qian Hui
- Key Laboratory of Laboratory Medicine of Jiangsu Province, School of Medicine, Jiangsu University, Zhenjiang, China.
| | - Xu Wenrong
- Key Laboratory of Laboratory Medicine of Jiangsu Province, School of Medicine, Jiangsu University, Zhenjiang, China.
| | - Xiao Zhai
- Department of Orthopedics, Shanghai Changhai Hospital, Shanghai, 200433, China.
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