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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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Liu J, Qi L, Bao S, Yan F, Chen J, Yu S, Dong C. The acute spinal cord injury microenvironment and its impact on the homing of mesenchymal stem cells. Exp Neurol 2024; 373:114682. [PMID: 38199509 DOI: 10.1016/j.expneurol.2024.114682] [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: 11/07/2023] [Revised: 12/08/2023] [Accepted: 01/02/2024] [Indexed: 01/12/2024]
Abstract
Spinal cord injury (SCI) is a highly debilitating condition that inflicts devastating harm on the lives of affected individuals, underscoring the urgent need for effective treatments. By activating inflammatory cells and releasing inflammatory factors, the secondary injury response creates an inflammatory microenvironment that ultimately determines whether neurons will undergo necrosis or regeneration. In recent years, mesenchymal stem cells (MSCs) have garnered increasing attention for their therapeutic potential in SCI. MSCs not only possess multipotent differentiation capabilities but also have homing abilities, making them valuable as carriers and mediators of therapeutic agents. The inflammatory microenvironment induced by SCI recruits MSCs to the site of injury through the release of various cytokines, chemokines, adhesion molecules, and enzymes. However, this mechanism has not been previously reported. Thus, a comprehensive exploration of the molecular mechanisms and cellular behaviors underlying the interplay between the inflammatory microenvironment and MSC homing is crucial. Such insights have the potential to provide a better understanding of how to harness the therapeutic potential of MSCs in treating inflammatory diseases and facilitating injury repair. This review aims to delve into the formation of the inflammatory microenvironment and how it influences the homing of MSCs.
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Affiliation(s)
- Jinyi Liu
- Department of Anatomy, Medical College of Nantong University, Nantong, China
| | - Longju Qi
- Affiliated Nantong Hospital 3 of Nantong University, Nantong, China
| | - Shengzhe Bao
- Department of Anatomy, Medical College of Nantong University, Nantong, China
| | - Fangsu Yan
- Department of Anatomy, Medical College of Nantong University, Nantong, China
| | - Jiaxi Chen
- Department of Anatomy, Medical College of Nantong University, Nantong, China
| | - Shumin Yu
- Department of Anatomy, Medical College of Nantong University, Nantong, China
| | - Chuanming Dong
- Department of Anatomy, Medical College of Nantong University, Nantong, China; Key Laboratory of Neuroregeneration of Jiangsu and Ministry of Education, Co-innovation Center of Neuroregeneration, Nantong University, Nantong, Jiangsu Province, China.
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Zhang C, Li Y, Yu Y, Li Z, Xu X, Talifu Z, Liu W, Yang D, Gao F, Wei S, Zhang L, Gong H, Peng R, Du L, Li J. Impact of inflammation and Treg cell regulation on neuropathic pain in spinal cord injury: mechanisms and therapeutic prospects. Front Immunol 2024; 15:1334828. [PMID: 38348031 PMCID: PMC10859493 DOI: 10.3389/fimmu.2024.1334828] [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: 11/07/2023] [Accepted: 01/03/2024] [Indexed: 02/15/2024] Open
Abstract
Spinal cord injury is a severe neurological trauma that can frequently lead to neuropathic pain. During the initial stages following spinal cord injury, inflammation plays a critical role; however, excessive inflammation can exacerbate pain. Regulatory T cells (Treg cells) have a crucial function in regulating inflammation and alleviating neuropathic pain. Treg cells release suppressor cytokines and modulate the function of other immune cells to suppress the inflammatory response. Simultaneously, inflammation impedes Treg cell activity, further intensifying neuropathic pain. Therefore, suppressing the inflammatory response while enhancing Treg cell regulatory function may provide novel therapeutic avenues for treating neuropathic pain resulting from spinal cord injury. This review comprehensively describes the mechanisms underlying the inflammatory response and Treg cell regulation subsequent to spinal cord injury, with a specific focus on exploring the potential mechanisms through which Treg cells regulate neuropathic pain following spinal cord injury. The insights gained from this review aim to provide new concepts and a rationale for the therapeutic prospects and direction of cell therapy in spinal cord injury-related conditions.
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Affiliation(s)
- Chunjia Zhang
- School of Rehabilitation, Capital Medical University, Beijing, China
- Department of Spinal and Neural Functional Reconstruction, China Rehabilitation Research Center, Beijing, China
| | - Yan Li
- Institute of Rehabilitation medicine, China Rehabilitation Research Center, Beijing, China
| | - Yan Yu
- Institute of Rehabilitation medicine, China Rehabilitation Research Center, Beijing, China
| | - Zehui Li
- School of Rehabilitation, Capital Medical University, Beijing, China
- Department of Spinal and Neural Functional Reconstruction, China Rehabilitation Research Center, Beijing, China
| | - Xin Xu
- School of Rehabilitation, Capital Medical University, Beijing, China
- Department of Spinal and Neural Functional Reconstruction, China Rehabilitation Research Center, Beijing, China
| | - Zuliyaer Talifu
- School of Population Medicine and Public Health, Chinese Academy of Medical Sciences/Peking Union Medical College, Beijing, China
| | - Wubo Liu
- School of Rehabilitation, Capital Medical University, Beijing, China
- Department of Spinal and Neural Functional Reconstruction, China Rehabilitation Research Center, Beijing, China
- Cheeloo College of Medicine, Shandong University, Jinan, Shandong, China
| | - Degang Yang
- School of Rehabilitation, Capital Medical University, Beijing, China
- Department of Spinal and Neural Functional Reconstruction, China Rehabilitation Research Center, Beijing, China
| | - Feng Gao
- School of Rehabilitation, Capital Medical University, Beijing, China
- Department of Spinal and Neural Functional Reconstruction, China Rehabilitation Research Center, Beijing, China
| | - Song Wei
- School of Rehabilitation, Capital Medical University, Beijing, China
- Department of Spinal and Neural Functional Reconstruction, China Rehabilitation Research Center, Beijing, China
| | - Liang Zhang
- School of Rehabilitation, Capital Medical University, Beijing, China
- Department of Spinal and Neural Functional Reconstruction, China Rehabilitation Research Center, Beijing, China
| | - Han Gong
- School of Rehabilitation, Capital Medical University, Beijing, China
- Department of Spinal and Neural Functional Reconstruction, China Rehabilitation Research Center, Beijing, China
| | - Run Peng
- School of Rehabilitation, Capital Medical University, Beijing, China
- Department of Spinal and Neural Functional Reconstruction, China Rehabilitation Research Center, Beijing, China
| | - Liangjie Du
- School of Rehabilitation, Capital Medical University, Beijing, China
- Department of Spinal and Neural Functional Reconstruction, China Rehabilitation Research Center, Beijing, China
| | - Jianjun Li
- School of Rehabilitation, Capital Medical University, Beijing, China
- Department of Spinal and Neural Functional Reconstruction, China Rehabilitation Research Center, Beijing, China
- Institute of Rehabilitation medicine, China Rehabilitation Research Center, Beijing, China
- Cheeloo College of Medicine, Shandong University, Jinan, Shandong, China
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Haro S, Gomez-Lahoz AM, Monserrat J, Atienza-Pérez M, Fraile-Martinez O, Ortega MA, García-Montero C, Díaz D, Lopez-Dolado E, Álvarez-Mon M. Patients with Chronic Spinal Cord Injury Display a Progressive Alteration over the Years of the Activation Stages of the T Lymphocyte Compartment. Int J Mol Sci 2023; 24:17596. [PMID: 38139422 PMCID: PMC10744286 DOI: 10.3390/ijms242417596] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2023] [Revised: 12/12/2023] [Accepted: 12/16/2023] [Indexed: 12/24/2023] Open
Abstract
Spinal cord injury (SCI) is a serious medical condition associated with severe morbidities and disability. Chronic SCI patients present an enhanced susceptibility to infections and comorbidities with inflammatory pathogenesis. Chronic SCI appears to be associated with a systemic dysfunction of the immune system. We investigated the alteration of the pivotal CD4+ and CD8+ T lymphocytes in patients with chronic SCI at different years of evolution. A clinically homogenous population of 105 patients with chronic SCI (31 with time of evolution less than 5 years (SCI SP); 32 early chronic (SCI ECP) with time of evolution between 5 and 15 years; and 42 late chronic (SCI LCP) with time of evolution more than 15 years) and 38 healthy controls were enrolled. SCI ECP and SCI LCP patients showed significant CD4+ and CD8+ T lymphopenia, ascribed to a reduction in naïve and CM subsets. Furthermore, SCI ECP and SCI LCP patients showed a significant reduction in the expression of CD28 on CD8+ T lymphocytes. The expression of CCR6 by CD4+ T lymphocytes was decreased during the evolution of chronic SCI, but on CD8+ T lymphocytes, it was observed during the first 15 years of evolution. In conclusion, the chronic SCI course with severe damage to T lymphocytes mainly worsens over the years of disease evolution.
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Affiliation(s)
- Sergio Haro
- Department of Medicine and Medical Specialities, University of Alcala, Crta N-II km 33.6, 28871 Alcala de Henares, Spain; (S.H.); (A.M.G.-L.); (J.M.); (O.F.-M.); (M.A.O.); (C.G.-M.); (D.D.); (E.L.-D.)
- Ramón y Cajal Institute of Sanitary Research (IRYCIS), 28034 Madrid, Spain
| | - Ana M. Gomez-Lahoz
- Department of Medicine and Medical Specialities, University of Alcala, Crta N-II km 33.6, 28871 Alcala de Henares, Spain; (S.H.); (A.M.G.-L.); (J.M.); (O.F.-M.); (M.A.O.); (C.G.-M.); (D.D.); (E.L.-D.)
- Ramón y Cajal Institute of Sanitary Research (IRYCIS), 28034 Madrid, Spain
| | - Jorge Monserrat
- Department of Medicine and Medical Specialities, University of Alcala, Crta N-II km 33.6, 28871 Alcala de Henares, Spain; (S.H.); (A.M.G.-L.); (J.M.); (O.F.-M.); (M.A.O.); (C.G.-M.); (D.D.); (E.L.-D.)
- Ramón y Cajal Institute of Sanitary Research (IRYCIS), 28034 Madrid, Spain
| | - Mar Atienza-Pérez
- Service of Rehabilitation, National Hospital for Paraplegic Patients, Carr. de la Peraleda, S/N, 45004 Toledo, Spain;
| | - Oscar Fraile-Martinez
- Department of Medicine and Medical Specialities, University of Alcala, Crta N-II km 33.6, 28871 Alcala de Henares, Spain; (S.H.); (A.M.G.-L.); (J.M.); (O.F.-M.); (M.A.O.); (C.G.-M.); (D.D.); (E.L.-D.)
- Ramón y Cajal Institute of Sanitary Research (IRYCIS), 28034 Madrid, Spain
| | - Miguel A. Ortega
- Department of Medicine and Medical Specialities, University of Alcala, Crta N-II km 33.6, 28871 Alcala de Henares, Spain; (S.H.); (A.M.G.-L.); (J.M.); (O.F.-M.); (M.A.O.); (C.G.-M.); (D.D.); (E.L.-D.)
- Ramón y Cajal Institute of Sanitary Research (IRYCIS), 28034 Madrid, Spain
| | - Cielo García-Montero
- Department of Medicine and Medical Specialities, University of Alcala, Crta N-II km 33.6, 28871 Alcala de Henares, Spain; (S.H.); (A.M.G.-L.); (J.M.); (O.F.-M.); (M.A.O.); (C.G.-M.); (D.D.); (E.L.-D.)
- Ramón y Cajal Institute of Sanitary Research (IRYCIS), 28034 Madrid, Spain
| | - David Díaz
- Department of Medicine and Medical Specialities, University of Alcala, Crta N-II km 33.6, 28871 Alcala de Henares, Spain; (S.H.); (A.M.G.-L.); (J.M.); (O.F.-M.); (M.A.O.); (C.G.-M.); (D.D.); (E.L.-D.)
- Ramón y Cajal Institute of Sanitary Research (IRYCIS), 28034 Madrid, Spain
| | - Elisa Lopez-Dolado
- Department of Medicine and Medical Specialities, University of Alcala, Crta N-II km 33.6, 28871 Alcala de Henares, Spain; (S.H.); (A.M.G.-L.); (J.M.); (O.F.-M.); (M.A.O.); (C.G.-M.); (D.D.); (E.L.-D.)
- Service of Rehabilitation, National Hospital for Paraplegic Patients, Carr. de la Peraleda, S/N, 45004 Toledo, Spain;
| | - Melchor Álvarez-Mon
- Department of Medicine and Medical Specialities, University of Alcala, Crta N-II km 33.6, 28871 Alcala de Henares, Spain; (S.H.); (A.M.G.-L.); (J.M.); (O.F.-M.); (M.A.O.); (C.G.-M.); (D.D.); (E.L.-D.)
- Ramón y Cajal Institute of Sanitary Research (IRYCIS), 28034 Madrid, Spain
- Immune System Diseases-Rheumatology Service and Internal Medicine, Prince of Asturias University Hospital (CIBEREHD), 28806 Alcala de Henares, Spain
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Araneda OF, Rosales-Antequera C, Contreras-Briceño F, Tuesta M, Rossi-Serrano R, Magalhães J, Viscor G. Systemic and Pulmonary Inflammation/Oxidative Damage: Implications of General and Respiratory Muscle Training in Chronic Spinal-Cord-Injured Patients. BIOLOGY 2023; 12:828. [PMID: 37372113 DOI: 10.3390/biology12060828] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/08/2023] [Revised: 06/03/2023] [Accepted: 06/05/2023] [Indexed: 06/29/2023]
Abstract
Chronic spinal cord injury affects several respiratory-function-related parameters, such as a decrease in respiratory volumes associated with weakness and a tendency to fibrosis of the perithoracic muscles, a predominance of vagal over sympathetic action inducing airway obstructions, and a difficulty in mobilizing secretions. Altogether, these changes result in both restrictive and obstructive patterns. Moreover, low pulmonary ventilation and reduced cardiovascular system functionality (low venous return and right stroke volume) will hinder adequate alveolar recruitment and low O2 diffusion, leading to a drop in peak physical performance. In addition to the functional effects described above, systemic and localized effects on this organ chronically increase oxidative damage and tissue inflammation. This narrative review describes both the deleterious effects of chronic spinal cord injury on the functional effects of the respiratory system as well as the role of oxidative damage/inflammation in this clinical context. In addition, the evidence for the effect of general and respiratory muscular training on the skeletal muscle as a possible preventive and treatment strategy for both functional effects and underlying tissue mechanisms is summarized.
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Affiliation(s)
- Oscar F Araneda
- Integrative Laboratory of Biomechanics and Physiology of Effort (LIBFE), Kinesiology School, Faculty of Medicine, Universidad de los Andes, Monseñor Álvaro del Portillo, Las Condes, Santiago 12455, Chile
| | - Cristián Rosales-Antequera
- Physical Medicine and Rehabilitation Unit, Clínica Universidad de los Andes, Santiago 8320000, Chile
- Physiology Section, Department of Cell Biology, Physiology, and Immunology, Faculty of Biology, Universitat de Barcelona, 08028 Barcelona, Spain
| | - Felipe Contreras-Briceño
- Laboratory of Exercise Physiology, Department of Health Science, Faculty of Medicine, Pontificia Universidad Católica de Chile, Av. Vicuña Mackenna #4860, Santiago 7820436, Chile
- Millennium Institute for Intelligent Healthcare Engineering, Av. Vicuña Mackenna #4860, Santiago 7820436, Chile
| | - Marcelo Tuesta
- Exercise and Rehabilitation Sciences Institute, School of Physical Therapy, Faculty of Rehabilitation Sciences, Universidad Andres Bello, Santiago 7591538, Chile
| | - Rafael Rossi-Serrano
- Physical Medicine and Rehabilitation Unit, Clínica Universidad de los Andes, Santiago 8320000, Chile
| | - José Magalhães
- Laboratory of Metabolism and Exercise (LaMetEx), Research Centre in Physical Activity, Health and Leisure (CIAFEL), Laboratory for Integrative and Translational Research in Population Health (ITR), Faculty of Sport, University of Porto, 4200-450 Porto, Portugal
| | - Ginés Viscor
- Physiology Section, Department of Cell Biology, Physiology, and Immunology, Faculty of Biology, Universitat de Barcelona, 08028 Barcelona, Spain
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