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Wang X, Niu X, Wang Y, Liu Y, Yang C, Chen X, Qi Z. C-C motif chemokine ligand 2/C-C motif chemokine receptor 2 pathway as a therapeutic target and regulatory mechanism for spinal cord injury. Neural Regen Res 2025; 20:2231-2244. [PMID: 39104168 DOI: 10.4103/nrr.nrr-d-24-00119] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2024] [Accepted: 06/07/2024] [Indexed: 08/07/2024] Open
Abstract
Spinal cord injury involves non-reversible damage to the central nervous system that is characterized by limited regenerative capacity and secondary inflammatory damage. The expression of the C-C motif chemokine ligand 2/C-C motif chemokine receptor 2 axis exhibits significant differences before and after injury. Recent studies have revealed that the C-C motif chemokine ligand 2/C-C motif chemokine receptor 2 axis is closely associated with secondary inflammatory responses and the recruitment of immune cells following spinal cord injury, suggesting that this axis is a novel target and regulatory control point for treatment. This review comprehensively examines the therapeutic strategies targeting the C-C motif chemokine ligand 2/C-C motif chemokine receptor 2 axis, along with the regenerative and repair mechanisms linking the axis to spinal cord injury. Additionally, we summarize the upstream and downstream inflammatory signaling pathways associated with spinal cord injury and the C-C motif chemokine ligand 2/C-C motif chemokine receptor 2 axis. This review primarily elaborates on therapeutic strategies that target the C-C motif chemokine ligand 2/C-C motif chemokine receptor 2 axis and the latest progress of research on antagonistic drugs, along with the approaches used to exploit new therapeutic targets within the C-C motif chemokine ligand 2/C-C motif chemokine receptor 2 axis and the development of targeted drugs. Nevertheless, there are presently no clinical studies relating to spinal cord injury that are focusing on the C-C motif chemokine ligand 2/C-C motif chemokine receptor 2 axis. This review aims to provide new ideas and therapeutic strategies for the future treatment of spinal cord injury.
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Affiliation(s)
- Xiangzi Wang
- School of Medicine, Guangxi University, Nanning, Guangxi Zhuang Autonomous Region, China
| | - Xiaofei Niu
- Graduate School of Tianjin University of Traditional Chinese Medicine, Tianjin, China
| | - Yingkai Wang
- School of Medicine, Guangxi University, Nanning, Guangxi Zhuang Autonomous Region, China
| | - Yang Liu
- School of Medicine, Guangxi University, Nanning, Guangxi Zhuang Autonomous Region, China
| | - Cheng Yang
- Characteristic Medical Center of People's Armed Police Forces, Tianjin, China
| | - Xuyi Chen
- Characteristic Medical Center of People's Armed Police Forces, Tianjin, China
| | - Zhongquan Qi
- School of Medicine, Guangxi University, Nanning, Guangxi Zhuang Autonomous Region, China
- Fujian Maternity and Child Health Hospital, Fuzhou, Fujian Province, China
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Chen J, Zeng X, Wang L, Zhang W, Li G, Cheng X, Su P, Wan Y, Li X. Mutual regulation of microglia and astrocytes after Gas6 inhibits spinal cord injury. Neural Regen Res 2025; 20:557-573. [PMID: 38819067 PMCID: PMC11317951 DOI: 10.4103/nrr.nrr-d-23-01130] [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: 07/05/2023] [Revised: 12/05/2023] [Accepted: 01/17/2024] [Indexed: 06/01/2024] Open
Abstract
JOURNAL/nrgr/04.03/01300535-202502000-00032/figure1/v/2024-05-28T214302Z/r/image-tiff Invasive inflammation and excessive scar formation are the main reasons for the difficulty in repairing nervous tissue after spinal cord injury. Microglia and astrocytes play key roles in the spinal cord injury micro-environment and share a close interaction. However, the mechanisms involved remain unclear. In this study, we found that after spinal cord injury, resting microglia (M0) were polarized into pro-inflammatory phenotypes (MG1 and MG3), while resting astrocytes were polarized into reactive and scar-forming phenotypes. The expression of growth arrest-specific 6 (Gas6) and its receptor Axl were significantly down-regulated in microglia and astrocytes after spinal cord injury. In vitro experiments showed that Gas6 had negative effects on the polarization of reactive astrocytes and pro-inflammatory microglia, and even inhibited the cross-regulation between them. We further demonstrated that Gas6 can inhibit the polarization of reactive astrocytes by suppressing the activation of the Yes-associated protein signaling pathway. This, in turn, inhibited the polarization of pro-inflammatory microglia by suppressing the activation of the nuclear factor-κB/p65 and Janus kinase/signal transducer and activator of transcription signaling pathways. In vivo experiments showed that Gas6 inhibited the polarization of pro-inflammatory microglia and reactive astrocytes in the injured spinal cord, thereby promoting tissue repair and motor function recovery. Overall, Gas6 may play a role in the treatment of spinal cord injury. It can inhibit the inflammatory pathway of microglia and polarization of astrocytes, attenuate the interaction between microglia and astrocytes in the inflammatory microenvironment, and thereby alleviate local inflammation and reduce scar formation in the spinal cord.
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Affiliation(s)
- Jiewen Chen
- Department of Spine Surgery, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, Guangdong Province, China
- Guangdong Province Key Laboratory of Orthopedics and Traumatology, Guangzhou, Guangdong Province, China
| | - Xiaolin Zeng
- Department of Spine Surgery, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, Guangdong Province, China
- Guangdong Province Key Laboratory of Orthopedics and Traumatology, Guangzhou, Guangdong Province, China
| | - Le Wang
- Department of Spine Surgery, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, Guangdong Province, China
- Guangdong Province Key Laboratory of Orthopedics and Traumatology, Guangzhou, Guangdong Province, China
| | - Wenwu Zhang
- Department of Spine Surgery, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, Guangdong Province, China
- Guangdong Province Key Laboratory of Orthopedics and Traumatology, Guangzhou, Guangdong Province, China
| | - Gang Li
- Department of Spine Surgery, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, Guangdong Province, China
- Guangdong Province Key Laboratory of Orthopedics and Traumatology, Guangzhou, Guangdong Province, China
| | - Xing Cheng
- Department of Spine Surgery, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, Guangdong Province, China
- Guangdong Province Key Laboratory of Orthopedics and Traumatology, Guangzhou, Guangdong Province, China
| | - Peiqiang Su
- Department of Spine Surgery, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, Guangdong Province, China
- Guangdong Province Key Laboratory of Orthopedics and Traumatology, Guangzhou, Guangdong Province, China
| | - Yong Wan
- Department of Spine Surgery, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, Guangdong Province, China
- Guangdong Province Key Laboratory of Orthopedics and Traumatology, Guangzhou, Guangdong Province, China
| | - Xiang Li
- Department of Spine Surgery, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, Guangdong Province, China
- Guangdong Province Key Laboratory of Orthopedics and Traumatology, Guangzhou, Guangdong Province, China
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Olaya AMS, Almeida FM, Martinez AMB, Marques SA. Treatment of spinal cord injury with biomaterials and stem cell therapy in non-human primates and humans. Neural Regen Res 2025; 20:343-353. [PMID: 38819038 PMCID: PMC11317961 DOI: 10.4103/nrr.nrr-d-23-01752] [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: 10/24/2023] [Revised: 02/27/2024] [Accepted: 03/27/2024] [Indexed: 06/01/2024] Open
Abstract
Spinal cord injury results in the loss of sensory, motor, and autonomic functions, which almost always produces permanent physical disability. Thus, in the search for more effective treatments than those already applied for years, which are not entirely efficient, researches have been able to demonstrate the potential of biological strategies using biomaterials to tissue manufacturing through bioengineering and stem cell therapy as a neuroregenerative approach, seeking to promote neuronal recovery after spinal cord injury. Each of these strategies has been developed and meticulously evaluated in several animal models with the aim of analyzing the potential of interventions for neuronal repair and, consequently, boosting functional recovery. Although the majority of experimental research has been conducted in rodents, there is increasing recognition of the importance, and need, of evaluating the safety and efficacy of these interventions in non-human primates before moving to clinical trials involving therapies potentially promising in humans. This article is a literature review from databases (PubMed, Science Direct, Elsevier, Scielo, Redalyc, Cochrane, and NCBI) from 10 years ago to date, using keywords (spinal cord injury, cell therapy, non-human primates, humans, and bioengineering in spinal cord injury). From 110 retrieved articles, after two selection rounds based on inclusion and exclusion criteria, 21 articles were analyzed. Thus, this review arises from the need to recognize the experimental therapeutic advances applied in non-human primates and even humans, aimed at deepening these strategies and identifying the advantages and influence of the results on extrapolation for clinical applicability in humans.
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Affiliation(s)
- Ana Milena Silva Olaya
- PhD Program in Pathological Anatomy, Federal University of Rio de Janeiro, Rio de Janeiro, Brazil
| | | | - Ana Maria Blanco Martinez
- Graduate Program in Pathological Anatomy, Federal University of Rio de Janeiro, Rio de Janeiro, Brazil
| | - Suelen Adriani Marques
- Graduate Program in Pathological Anatomy (PPGAP/UFRJ), Department of Neurobiology/Institute of Biology, Campus do Gragoatá, Niterói, Rio de Janeiro, Brazil
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Hao J, Ye Y, Zhang G, Shen H, Li J, Chen G. Mechanisms of nitric oxide in spinal cord injury. Med Gas Res 2024; 14:192-200. [PMID: 39073327 DOI: 10.4103/mgr.medgasres-d-23-00006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2023] [Accepted: 12/04/2023] [Indexed: 07/30/2024] Open
Abstract
Spinal cord injury (SCI) is a primary lesion of the spinal cord that results from external forces or diseases, accompanied by a cascade of secondary events. Nitric oxide, an endogenous gas that functions as a signaling molecule in the human body, plays a crucial role in vasodilation of smooth muscles, regulation of blood flow and pressure, and inflammatory response. This article provides a comprehensive overview of the involvement of nitric oxide in SCI and highlights recent advances in basic research on pharmacological agents that inhibit nitric oxide elevation after SCI, offering valuable insights for future therapeutic interventions targeting SCI.
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Affiliation(s)
- Jiahui Hao
- Brain and Nerve Research Laboratory, Department of Neurosurgery, The First Affiliated Hospital of Soochow University, Suzhou, Jiangsu Province, China
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Lu Y, Liang Z, Wu Z, Liu J, Ren D, Chu J, Xu J, Zeng H, Wang Z, Wang S. Studying on the in vivo pathological evolution of spinal cord injury with the rat model by the method of integrated multispectral imaging and Raman spectroscopy. Talanta 2024; 279:126672. [PMID: 39111219 DOI: 10.1016/j.talanta.2024.126672] [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: 06/21/2024] [Revised: 07/28/2024] [Accepted: 08/05/2024] [Indexed: 09/01/2024]
Abstract
Spinal cord injury (SCI) is a debilitating neurological and pathological condition that results in significant impairments in motor, sensory, and autonomic functions. By integrating multispectral imaging (MSI) with Raman spectroscopy, a label-free optical methodology was developed for achieving a non-invasive in vivo understanding on the pathological features of SCI evolution. Under the guidance of captured the spectral imaging data cube with a rigid endoscope based MSI system, a special designed fiber probe passed through the instrumental channel for acquiring the finger-print spectral information from compression rat SCI models. After identifying the main visual features of injured spinal cord tissue in all Sham, 0-, 3- and 7-days post injury (0 DPI, 3 DPI, and 7 DPI) groups, the blood volume and oxygen content were visualized to describe hemorrhage, hypoxia and inflammatory state after acute injury. The averaged reflectance spectra, which were deduced from MSI data cubes, were utilized for describing oxygen saturation and hemoglobin concentration in living tissue. The results of Raman spectroscopy addressed complex compositional and conformational phenomena during SCI progression, correlated with the well-known event like neuronal apoptosis, hemorrhage, demyelination, and even the upregulation of chondroitin sulfate proteoglycans (CSPGs). A principal component analysis and linear discriminate algorithm (PCA-LDA) based discriminate model was introduced for categorizing spectral features in different injury stages, which was applicable for intraoperative interpretations on the complex pathological courses of SCI and therapeutic outcomes.
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Affiliation(s)
- Yixin Lu
- Institute of Photonics and Photon-Technology, Northwest University, Xi'an, Shaanxi, 710127, China
| | - Zhuowen Liang
- Department of Orthopaedics, Xijing Hospital, Air Force Military Medical University, Xi'an, Shaanxi, 710032, China
| | - Zhenguo Wu
- Integrative Oncology Department, BC Cancer Research Institute, University of British Columbia, Vancouver, BC, V5Z1L3, Canada
| | - Jing Liu
- Institute of Photonics and Photon-Technology, Northwest University, Xi'an, Shaanxi, 710127, China
| | - Dandan Ren
- Institute of Photonics and Photon-Technology, Northwest University, Xi'an, Shaanxi, 710127, China
| | - Jiahui Chu
- Institute of Photonics and Photon-Technology, Northwest University, Xi'an, Shaanxi, 710127, China
| | - Jie Xu
- Institute of Photonics and Photon-Technology, Northwest University, Xi'an, Shaanxi, 710127, China
| | - Haishan Zeng
- Integrative Oncology Department, BC Cancer Research Institute, University of British Columbia, Vancouver, BC, V5Z1L3, Canada
| | - Zhe Wang
- Department of Orthopaedics, Xijing Hospital, Air Force Military Medical University, Xi'an, Shaanxi, 710032, China
| | - Shuang Wang
- Institute of Photonics and Photon-Technology, Northwest University, Xi'an, Shaanxi, 710127, China.
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Tang C, Jin Y, Wu M, Jia F, Lu X, Li J, Wu J, Zhu S, Wang Z, An D, Xiong W, Zhang Y, Xu H, Chen X. A biomimic anti-neuroinflammatory nanoplatform for active neutrophil extracellular traps targeting and spinal cord injury therapy. Mater Today Bio 2024; 28:101218. [PMID: 39221206 PMCID: PMC11364920 DOI: 10.1016/j.mtbio.2024.101218] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2024] [Revised: 08/19/2024] [Accepted: 08/23/2024] [Indexed: 09/04/2024] Open
Abstract
Traumatic spinal cord injury (SCI) always leads to severe neurological deficits and permanent damage. Neuroinflammation is a vital process of SCI and have become a promising target for SCI treatment. However, the neuroinflammation-targeted therapy would hinder the functional recovery of spinal cord and lead to the treatment failure. Herein, a biomimic anti-neuroinflammatory nanoplatform (DHCNPs) was developed for active neutrophil extracellular traps (NETs) targeting and SCI treatment. The curcumin-loaded liposome with the anti-inflammatory property acted as the core of the DHCNPs. Platelet membrane and neutrophil membrane were fused to form the biomimic hybrid membrane of the DHCNPs for hijacking neutrophils and neutralizing the elevated neutrophil-related proinflammatory cytokines, respectively. DNAse I modification on the hybrid membrane could achieve NETs degradation, blood spinal cord barrier, and neuron repair. Further studies proved that the DHCNPs could reprogram the multifaceted neuroinflammation and reverse the SCI process via nuclear factor kappa-B (NF-κB) pathway. We believe that the current study provides a new perspective for neuroinflammation inhibition and may shed new light on the treatment of SCI.
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Affiliation(s)
- Chunming Tang
- Department of Pharmaceutics, School of Pharmacy, Nanjing Medical University, Nanjing, 211166, China
| | - Yaoyao Jin
- Department of Emergency, The Affiliated Huai'an Hospital of Xuzhou Medical University and The Second People's Hospital of Huai'an, Huai'an, 223022, China
| | - Min Wu
- Department of Pharmaceutics, School of Pharmacy, Nanjing Medical University, Nanjing, 211166, China
| | - Feng Jia
- Department of Neurosurgery, Yancheng NO.1 People's Hospital, The Affiliated Yancheng First Hospital of Nanjing University Medical School, Yancheng, 224008, China
| | - Xiaowei Lu
- Department of Geriatric Neurology, the First Affiliated Hospital of Nanjing Medical University, Nanjing, 210029, China
| | - Jinyu Li
- Department of Pharmaceutics, School of Pharmacy, Nanjing Medical University, Nanjing, 211166, China
| | - Jie Wu
- Department of Pharmaceutics, School of Pharmacy, Nanjing Medical University, Nanjing, 211166, China
| | - Senlin Zhu
- Department of Pharmaceutics, School of Pharmacy, Nanjing Medical University, Nanjing, 211166, China
| | - Zhiji Wang
- Department of Pharmaceutics, School of Pharmacy, Nanjing Medical University, Nanjing, 211166, China
| | - Di An
- Department of Emergency Medicine, The First Affiliated Hospital of Nanjing Medical University, Nanjing, 210029, China
| | - Wu Xiong
- Department of Human Anatomy, Nanjing Medical University, Nanjing, 211166, China
| | - Yongjie Zhang
- Department of Human Anatomy, Nanjing Medical University, Nanjing, 211166, China
| | - Huae Xu
- Department of Pharmaceutics, School of Pharmacy, Nanjing Medical University, Nanjing, 211166, China
| | - Xufeng Chen
- Department of Emergency Medicine, The First Affiliated Hospital of Nanjing Medical University, Nanjing, 210029, China
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Chi G, Lu J, He T, Wang Y, Zhou X, Zhang Y, Qiu L. High mobility group box-1 protein promotes astrocytic CCL5 production through the MAPK/NF-κB pathway following spinal cord injury. Sci Rep 2024; 14:22344. [PMID: 39333662 PMCID: PMC11437233 DOI: 10.1038/s41598-024-72947-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2024] [Accepted: 09/12/2024] [Indexed: 09/29/2024] Open
Abstract
Astrocytes act as immune cells that can produce a series of chemokines to attract large numbers of leucocytes to the lesion site, where they contribute to excessive inflammation following spinal cord injury (SCI). However, the relevant regulatory mechanism involved in chemokine production by astrocytes has not been fully elucidated. In the present study, we examined the correlation between C-C motif chemokine ligand 5 (CCL5) and high mobility group box-1 protein (HMGB1) in a T8-T10 spinal cord contusion model. Our results revealed that SCI-induced CCL5 protein levels increased synchronously with the increase in HMGB1. Administration of an HMGB1-neutralizing antibody significantly reduced the protein expression of CCL5 in the context of SCI. An in vitro study revealed that HMGB1 binding with TLR2/4 receptors potently facilitates the production of CCL5 by astrocytes by activating the intracellular ERK/JNK-mediated NF-κB pathway. Furthermore, the HMGB1-induced release of CCL5 from astrocytes is involved in promoting microglia/macrophage accumulation and M1 polarization. The inhibition of HMGB1 activity reduces microglia/macrophage infiltration by decreasing the expression of CCL5 and improves motor functional recovery following SCI. Our results provide insights into the new functions of HMGB1-mediated astrocytic CCL5 production, which elicits inflammatory cell recruitment to the site of injury; this recruitment is associated with excessive inflammation activation. These data may provide a new therapeutic strategy for central nervous system (CNS) inflammation.
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Affiliation(s)
- Guanghao Chi
- Department of Orthopedics, Hanzhong Central Hospital, Hanzhong, 723000, Shanxi, China
| | - Junqin Lu
- Department of Stomatology, School of Medicine, Shanghai East Hospital, Tongji University, Shanghai, 200120, China
| | - Tao He
- College of Health Management, Shanghai Jian Qiao University, Shanghai, 201306, China
| | - Yijia Wang
- Shanghai Key Laboratory of Orthopedic Implants, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, 200011, China
| | - Xinli Zhou
- Department of Orthopedics, Hanzhong Central Hospital, Hanzhong, 723000, Shanxi, China
| | - Yuxin Zhang
- Shanghai Key Laboratory of Orthopedic Implants, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, 200011, China.
- Department of Oral Surgery, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China.
- College of Stomatology, Shanghai Jiao Tong University, Shanghai, China.
- National Center for Stomatology, Shanghai, China.
- National Clinical Research Center for Oral Diseases, Shanghai, China.
- Shanghai Key Laboratory of Stomatology, Shanghai, China.
- Shanghai Research Institute of Stomatology, Shanghai, China.
- Research Unit of Oral and Maxillofacial Regenerative Medicine, Chinese Academy of Medical Sciences, Shanghai, 200011, China.
- Department of Rehabilitation Medicine, Fengcheng Branch, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, 200011, China.
| | - Longshun Qiu
- Department of Orthopedics, Hanzhong Central Hospital, Hanzhong, 723000, Shanxi, China.
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Ma H, Xing C, Wei H, Li Y, Wang L, Liu S, Wu Q, Sun C, Ning G. Berberine attenuates neuronal ferroptosis via the AMPK-NRF2-HO-1-signaling pathway in spinal cord-injured rats. Int Immunopharmacol 2024; 142:113227. [PMID: 39321704 DOI: 10.1016/j.intimp.2024.113227] [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: 06/24/2024] [Revised: 09/11/2024] [Accepted: 09/18/2024] [Indexed: 09/27/2024]
Abstract
Ferroptosis, characterized by iron-dependent accumulation of lipid peroxides, plays an important role in spinal cord injury (SCI). Berberine (BBR), as a lipid peroxide scavenger, has been widely used in treating other diseases; however, its role in ferroptosis has not been fully elucidated. Therefore, here, to test our hypothesis that BBR can reduce the severity of SCI and promote motor function recovery by inhibiting neuronal ferroptosis, we evaluated the changes in ferroptosis-related indicators after BBR administration by establishing a cellular ferroptosis model and an SCI contusion model. We found that BBR administration significantly reduces lipid peroxidation damage, maintains normal mitochondrial function, reduces excessive accumulation of iron ions, enhances antioxidant capacity, and activates the ferroptosis defense system in vivo and in vitro. Mechanistically, BBR alleviates neuronal ferroptosis by inducing adenosine monophosphate-activated protein kinase (AMPK) phosphorylation and up-regulating nuclear factor erythroid 2-related factor 2 (NRF2) and heme oxygenase-1 (HO-1) protein expression to promote glutathione production. BBR administration also significantly improves motor function recovery in SCI rats. Meanwhile, applying the AMPK inhibitor Compound C blocks the neuroprotective and all other effects of BBR. Collectively, our findings demonstrate that BBR can attenuate neuronal ferroptosis after SCI by activating the AMPK-NRF2-HO-1 pathway.
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Affiliation(s)
- Hongpeng Ma
- Department of Orthopedics, Tianjin Medical University General Hospital, Tianjin, China; International Science and Technology Cooperation Base of Spinal Cord Injury, Tianjin, China; Tianjin Key Laboratory of Spine and Spinal Cord Injury, Tianjin, China; Tianjin Institute of Orthopedic Innovation and Transformation, Tianjin, China
| | - Cong Xing
- Department of Orthopedics, Tianjin Medical University General Hospital, Tianjin, China; International Science and Technology Cooperation Base of Spinal Cord Injury, Tianjin, China; Tianjin Key Laboratory of Spine and Spinal Cord Injury, Tianjin, China; Tianjin Institute of Orthopedic Innovation and Transformation, Tianjin, China
| | - Haitao Wei
- Department of Orthopedics, Tianjin Medical University General Hospital, Tianjin, China; International Science and Technology Cooperation Base of Spinal Cord Injury, Tianjin, China; Tianjin Key Laboratory of Spine and Spinal Cord Injury, Tianjin, China; Tianjin Institute of Orthopedic Innovation and Transformation, Tianjin, China
| | - Yan Li
- Department of Orthopedics, Tianjin Medical University General Hospital, Tianjin, China; International Science and Technology Cooperation Base of Spinal Cord Injury, Tianjin, China; Tianjin Key Laboratory of Spine and Spinal Cord Injury, Tianjin, China; Tianjin Institute of Orthopedic Innovation and Transformation, Tianjin, China
| | - Liyue Wang
- Department of Orthopedics, Tianjin Medical University General Hospital, Tianjin, China; International Science and Technology Cooperation Base of Spinal Cord Injury, Tianjin, China; Tianjin Key Laboratory of Spine and Spinal Cord Injury, Tianjin, China; Tianjin Institute of Orthopedic Innovation and Transformation, Tianjin, China
| | - Song Liu
- Department of Orthopedics, Tianjin Medical University General Hospital, Tianjin, China; International Science and Technology Cooperation Base of Spinal Cord Injury, Tianjin, China; Tianjin Key Laboratory of Spine and Spinal Cord Injury, Tianjin, China; Tianjin Institute of Orthopedic Innovation and Transformation, Tianjin, China
| | - Qiang Wu
- Department of Orthopedics, Tianjin Medical University General Hospital, Tianjin, China; International Science and Technology Cooperation Base of Spinal Cord Injury, Tianjin, China; Tianjin Key Laboratory of Spine and Spinal Cord Injury, Tianjin, China; Tianjin Institute of Orthopedic Innovation and Transformation, Tianjin, China
| | - Chao Sun
- Department of Orthopedics, Tianjin Medical University General Hospital, Tianjin, China; International Science and Technology Cooperation Base of Spinal Cord Injury, Tianjin, China; Tianjin Key Laboratory of Spine and Spinal Cord Injury, Tianjin, China; Tianjin Institute of Orthopedic Innovation and Transformation, Tianjin, China
| | - Guangzhi Ning
- Department of Orthopedics, Tianjin Medical University General Hospital, Tianjin, China; International Science and Technology Cooperation Base of Spinal Cord Injury, Tianjin, China; Tianjin Key Laboratory of Spine and Spinal Cord Injury, Tianjin, China; Tianjin Institute of Orthopedic Innovation and Transformation, Tianjin, China.
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9
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Qin X, Zhang X, He X, Xu H, Yao Q, Li Z, Feng Y, Zhong Y, Li Z, Lv G, Wang Y. Neuron-derived Netrin-1 deficiency aggravates spinal cord injury through activating the NF-κB signaling pathway. Heliyon 2024; 10:e37388. [PMID: 39290272 PMCID: PMC11407054 DOI: 10.1016/j.heliyon.2024.e37388] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2023] [Revised: 08/24/2024] [Accepted: 09/02/2024] [Indexed: 09/19/2024] Open
Abstract
Netrin-1 (NTN1) is involved in psychological alterations caused by central nerve system diseases. The primary objective of this research was to investigate whether a deficiency of neuron-derived NTN1 in the remote brain regions affects SCI outcomes. To examine the roles and mechanisms of neuron-derived NTN1 during SCI, Western blots, Nissl staining, immunochemical technique, RNA-sequence, and related behavioral tests were conducted in the study. Our study revealed that mice lacking NTN1 exhibited normal morphological structure of the spinal cords, hippocampus, and neurological function. While neuron-derived NTN1deletion mechanistically disrupted neuronal regeneration and aggregates neuronal apoptosis and ferroptosis in the intermediate phase following SCI. Additionally, neuroinflammation was significantly enhanced in the early phase, which could be related to activation of the NF-κB signaling pathway. Overall, our findings indicate that the deletion of neuron-derived NTN1 leads to the activation of the NF-κB pathway, contributing to the promotion of neuronal apoptosis and ferroptosis, and the pathological progression of SCI.
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Affiliation(s)
- Xiaojian Qin
- Department of Orthopaedics. The First Affiliated Hospital, China Medical University, Shenyang, 110001, Liaoning Province, China
| | - Xiaolan Zhang
- Department of Pharmacology, Life Science and Biopharmaceutical Institution, Shenyang Pharmaceutical University, Shenyang, 110016, Liaoning Province, China
| | - Xiaodong He
- Department of Pharmacology, Life Science and Biopharmaceutical Institution, Shenyang Pharmaceutical University, Shenyang, 110016, Liaoning Province, China
| | - Hui Xu
- Department of Pharmacology, Life Science and Biopharmaceutical Institution, Shenyang Pharmaceutical University, Shenyang, 110016, Liaoning Province, China
| | - Qiannan Yao
- Department of Pharmacology, Life Science and Biopharmaceutical Institution, Shenyang Pharmaceutical University, Shenyang, 110016, Liaoning Province, China
| | - Zifeng Li
- Department of Pharmacology, Life Science and Biopharmaceutical Institution, Shenyang Pharmaceutical University, Shenyang, 110016, Liaoning Province, China
| | - Yayun Feng
- Department of Pharmacology, Life Science and Biopharmaceutical Institution, Shenyang Pharmaceutical University, Shenyang, 110016, Liaoning Province, China
| | - Yichen Zhong
- Department of Pharmacology, Life Science and Biopharmaceutical Institution, Shenyang Pharmaceutical University, Shenyang, 110016, Liaoning Province, China
| | - Ziyang Li
- Department of Orthopaedics. The First Affiliated Hospital, China Medical University, Shenyang, 110001, Liaoning Province, China
| | - Gang Lv
- Department of Orthopaedics. The First Affiliated Hospital, China Medical University, Shenyang, 110001, Liaoning Province, China
| | - Yanfeng Wang
- Department of Orthopaedics. The First Affiliated Hospital, China Medical University, Shenyang, 110001, Liaoning Province, China
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Gu X, Zhang S, Ma W. Prussian blue nanotechnology in the treatment of spinal cord injury: application and challenges. Front Bioeng Biotechnol 2024; 12:1474711. [PMID: 39323764 PMCID: PMC11422158 DOI: 10.3389/fbioe.2024.1474711] [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: 08/05/2024] [Accepted: 08/28/2024] [Indexed: 09/27/2024] Open
Abstract
Spinal cord injury (SCI) is a serious neurological condition that currently lacks effective treatments, placing a heavy burden on both patients and society. Prussian blue nanoparticles exhibit great potential for treating spinal cord injuries due to their excellent physicochemical properties and biocompatibility. These nanoparticles have strong anti-inflammatory and antioxidant capabilities, effectively scavenge free radicals, and reduce oxidative stress damage to cells. Prussian blue nanotechnology shows broad application potential in drug delivery, bioimaging, cancer therapy, anti-inflammatory and oxidative stress treatment, and biosensors. This article reviewed the potential applications of Prussian blue nanotechnology in treating spinal cord injuries, explored the challenges and solutions associated with its application, and discussed the future prospects of this technology in SCI treatment.
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Affiliation(s)
- XiaoPeng Gu
- Department of Clinical Medicine, Health Science Center, Ningbo University, Ningbo, Zhejiang, China
- Department of Orthopedics, NingBo NO.6 Hospital, Ningbo, Zhejiang, China
- Department of Orthopedics, Zhoushan Guhechuan Hospital, Zhoushan, Zhejiang, China
- Zhoushan Institute of Orthopedics and Traumatology, Zhoushan, Zhejiang, China
| | - SongOu Zhang
- Department of Clinical Medicine, Health Science Center, Ningbo University, Ningbo, Zhejiang, China
| | - WeiHu Ma
- Department of Orthopedics, NingBo NO.6 Hospital, Ningbo, Zhejiang, China
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11
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El Masri J, Fadlallah H, Al Sabsabi R, Afyouni A, Al-Sayegh M, Abou-Kheir W. Adipose-Derived Stem Cell Therapy in Spinal Cord Injury. Cells 2024; 13:1505. [PMID: 39273075 PMCID: PMC11394073 DOI: 10.3390/cells13171505] [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: 07/25/2024] [Revised: 09/04/2024] [Accepted: 09/05/2024] [Indexed: 09/15/2024] Open
Abstract
Spinal cord injury (SCI) is a serious condition accompanied by severe adverse events that affect several aspects of the patient's life, such as motor, sensory, and functional impairment. Despite its severe consequences, definitive treatment for these injuries is still missing. Therefore, researchers have focused on developing treatment strategies aimed at ensuring full recovery post-SCI. Accordingly, attention has been drawn toward cellular therapy using mesenchymal stem cells. Considering their wide availability, decreased immunogenicity, wide expansion capacity, and impressive effectiveness in many therapeutic approaches, adipose-derived stem cell (ADSC) injections in SCI cases have been investigated and showed promising results. In this review, SCI pathophysiology and ADSC transplantation benefits are discussed independently, together with SCI animal models and adipose stem cell preparation and application techniques. The mechanisms of healing in an SCI post-ADSC injection, the outcomes of this therapeutic approach, and current clinical trials are also deliberated, in addition to the challenges and future perspectives, aiming to encourage further research in this field.
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Affiliation(s)
- Jad El Masri
- Department of Anatomy, Cell Biology, and Physiological Sciences, American University of Beirut, Beirut 1107-2020, Lebanon
- Faculty of Medical Sciences, Lebanese University, Beirut 1533, Lebanon
| | - Hiba Fadlallah
- Department of Anatomy, Cell Biology, and Physiological Sciences, American University of Beirut, Beirut 1107-2020, Lebanon
| | - Rahaf Al Sabsabi
- Faculty of Medical Sciences, Lebanese University, Beirut 1533, Lebanon
| | - Ahmad Afyouni
- Faculty of Medical Sciences, Lebanese University, Beirut 1533, Lebanon
| | - Mohamed Al-Sayegh
- Biology Division, New York University Abu Dhabi, Abu Dhabi 2460, United Arab Emirates
| | - Wassim Abou-Kheir
- Department of Anatomy, Cell Biology, and Physiological Sciences, American University of Beirut, Beirut 1107-2020, Lebanon
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12
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Hou Y, Liang C, Sui L, Li Y, Wang K, Li X, Zheng K, Su H, Xie D, Lin D, Guo D, Wang L. Curculigoside Regulates Apoptosis and Oxidative Stress Against Spinal Cord Injury by Modulating the Nrf-2/NQO-1 Signaling Pathway In Vitro and In Vivo. Mol Neurobiol 2024:10.1007/s12035-024-04409-9. [PMID: 39230866 DOI: 10.1007/s12035-024-04409-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2023] [Accepted: 07/23/2024] [Indexed: 09/05/2024]
Abstract
Spinal cord injury (SCI) is a severe neurological disorder that can lead to paralysis or death. Oxidative stress during SCI is a critical phase causing extensive nerve cell damage and apoptosis, thereby impairing spinal cord healing. Thus, a primary goal of SCI drug therapy is to mitigate oxidative stress. Curculigoside (CUR), a phenolic glucoside extracted from the dried root and rhizome of Curculigo orchioides Gaertn, possesses neuroprotective and antioxidant properties. This study aimed to investigate whether CUR effectively promotes the recovery of spinal cord tissue following SCI and elucidate its mechanism. We employed a hydrogen peroxide (H2O2)-induced PC12 cell model and an SCI rat model to observe the effects of CUR on oxidation and apoptosis. The results demonstrated that CUR significantly reduced the expression of apoptosis-related proteins (Bax and Caspase-3), Annexin V/propidium iodide (PI), and terminal deoxynucleotidyl transferase dUTP nick end labeling (TUNEL), while increasing the expression of the anti-apoptotic protein Bcl-2. Moreover, CUR effectively enhanced levels of antioxidants (glutathione [GSH)] and decreased reactive oxygen species (ROS) in vitro. Furthermore, CUR facilitated functional recovery through its anti-apoptotic and anti-oxidative stress effects on spinal cord tissues in SCI rats. These effects were mediated via the Nrf2/NQO1 signaling pathway. Therefore, our study showed that CUR acted as an anti-apoptotic and anti-oxidative stress agent, inhibiting astrocyte activation and promoting neuronal reconstruction and functional recovery. These findings may contribute significantly to the development of SCI treatments and advance the field of SCI drug therapy.
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Affiliation(s)
- Yu Hou
- The Second Clinical College of Guangzhou University of Chinese Medicine, Guangzhou, 510120, Guangdong, China
- State Key Laboratory of Dampness, Syndrome of Chinese Medicine, Department of Orthopedic Surgery, The Second Affiliated Hospital of Guangzhou University of Chinese Medicine, Guangzhou, 510120, Guangdong, China
| | - Chaolun Liang
- Department of Orthopedics (Joint Surgery), Guangdong Province Hospital of Chinese Medicine, Zhuhai, 519015, Guangdong, China
| | - Lili Sui
- The First Clinical Medical College of Guangzhou University of Chinese Medicine, Guangzhou, 510120, Guangdong, China
| | - Yang Li
- The Second Clinical College of Guangzhou University of Chinese Medicine, Guangzhou, 510120, Guangdong, China
- State Key Laboratory of Dampness, Syndrome of Chinese Medicine, Department of Orthopedic Surgery, The Second Affiliated Hospital of Guangzhou University of Chinese Medicine, Guangzhou, 510120, Guangdong, China
| | - Kai Wang
- The Second Clinical College of Guangzhou University of Chinese Medicine, Guangzhou, 510120, Guangdong, China
| | - Xing Li
- State Key Laboratory of Dampness, Syndrome of Chinese Medicine, Department of Orthopedic Surgery, The Second Affiliated Hospital of Guangzhou University of Chinese Medicine, Guangzhou, 510120, Guangdong, China.
| | - Kunrui Zheng
- The Second Clinical College of Guangzhou University of Chinese Medicine, Guangzhou, 510120, Guangdong, China
| | - Haitao Su
- State Key Laboratory of Dampness, Syndrome of Chinese Medicine, Department of Orthopedic Surgery, The Second Affiliated Hospital of Guangzhou University of Chinese Medicine, Guangzhou, 510120, Guangdong, China
| | - Dianweng Xie
- The Second Clinical College of Guangzhou University of Chinese Medicine, Guangzhou, 510120, Guangdong, China
| | - Dingkun Lin
- State Key Laboratory of Dampness, Syndrome of Chinese Medicine, Department of Orthopedic Surgery, The Second Affiliated Hospital of Guangzhou University of Chinese Medicine, Guangzhou, 510120, Guangdong, China
| | - Da Guo
- State Key Laboratory of Dampness, Syndrome of Chinese Medicine, Department of Orthopedic Surgery, The Second Affiliated Hospital of Guangzhou University of Chinese Medicine, Guangzhou, 510120, Guangdong, China.
| | - Le Wang
- Department of Spine Surgery, Guangdong Provincial Key Laboratory of Orthopedics and Traumatology, the First Affiliated Hospital of Sun Yat-Sen University, Guangzhou, 510080, Guangdong, China.
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13
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Hsueh YH, Li YW, Chen KP, Chen WL, Tu YK. Nerve Bypass Surgery for Spinal Cord Reconstruction. World Neurosurg 2024; 189:e27-e37. [PMID: 38735563 DOI: 10.1016/j.wneu.2024.05.022] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2024] [Accepted: 05/05/2024] [Indexed: 05/14/2024]
Abstract
OBJECTIVE Spinal cord injury (SCI) is a devastating condition that significantly decreases the patient's quality of life. Therefore, treatments that can facilitate nerve regeneration, reduce complications, and increase quality of life are valuable for these patients. In this study, we aimed to assess nerve bypass surgery's feasibility and clinical outcomes by transferring the intercostal nerves into the spinal cord. METHODS Eight patients with complete thoracic SCI and delayed presentation more than a year after the injury were analyzed retrospectively. All patients underwent nerve bypass surgery with the transfer of 2 pairs of intercostal nerves from proximal to the injury site to the anterolateral spinal cord, followed by duraplasty with fascia grafting to close the dura. RESULTS Six of the 8 (75%) patients demonstrated motor and sensory improvements, based on the American SCI Association score. Three patients demonstrated a limited recovery of motor function that could be independently triggered without ICN initiation. Five patients demonstrated evidence of cerebrospinal fluid leakage after surgery; however, only 1 patient complained of a headache. CONCLUSIONS Spinal cord bypass surgery is a potential reconstruction method to treat chronic complete thoracic SCI with functional improvements, and is worth further investigation.
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Affiliation(s)
- Yu-Huan Hsueh
- Department of Orthopedics, E-Da Hospital, I-Shou University, Kaohsiung, Taiwan; School of Medicine, College of Medicine, I-Shou University, Kaohsiung, Taiwan; College of Biological Science and Technology, National Yang Ming Chiao Tung University, Hsinchu, Taiwan
| | - Yen-Wei Li
- Department of Orthopedics, E-Da Hospital, I-Shou University, Kaohsiung, Taiwan; School of Medicine, College of Medicine, I-Shou University, Kaohsiung, Taiwan
| | - Kuan-Po Chen
- Department of Orthopedics, E-Da Hospital, I-Shou University, Kaohsiung, Taiwan; School of Medicine, College of Medicine, I-Shou University, Kaohsiung, Taiwan
| | - Wen-Liang Chen
- College of Biological Science and Technology, National Yang Ming Chiao Tung University, Hsinchu, Taiwan
| | - Yuan-Kun Tu
- Department of Orthopedics, E-Da Hospital, I-Shou University, Kaohsiung, Taiwan; School of Medicine, College of Medicine, I-Shou University, Kaohsiung, Taiwan.
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14
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Zeller SL, Stein A, Frid I, Carpenter AB, Soldozy S, Rawanduzy C, Rosenberg J, Bauerschmidt A, Al-Mufti F, Mayer SA, Kinon MD, Wainwright JV. Critical Care of Spinal Cord Injury. Curr Neurol Neurosci Rep 2024; 24:355-363. [PMID: 39008022 DOI: 10.1007/s11910-024-01357-8] [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] [Accepted: 07/01/2024] [Indexed: 07/16/2024]
Abstract
PURPOSE OF REVIEW Spinal cord injury (SCI) is a major cause of morbidity and mortality, posing a significant financial burden on patients and the healthcare system. While little can be done to reverse the primary mechanical insult, minimizing secondary injury due to ischemia and inflammation and avoiding complications that adversely affect neurologic outcome represent major goals of management. This article reviews important considerations in the acute critical care management of SCI to improve outcomes. RECENT FINDINGS Neuroprotective agents, such as riluzole, may allow for improved neurologic recovery but require further investigation at this time. Various forms of neuromodulation, such as transcranial magnetic stimulation, are currently under investigation. Early decompression and stabilization of SCI is recommended within 24 h of injury when indicated. Spinal cord perfusion may be optimized with a mean arterial pressure goal from a lower limit of 75-80 to an upper limit of 90-95 mmHg for 3-7 days after injury. The use of corticosteroids remains controversial; however, initiation of a 24-h infusion of methylprednisolone 5.4 mg/kg/hour within 8 h of injury has been found to improve motor scores. Attentive pulmonary and urologic care along with early mobilization can reduce in-hospital complications.
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Affiliation(s)
- Sabrina L Zeller
- Department of Neurosurgery, Westchester Medical Center, Valhalla, NY, USA
- Department of Neurosurgery, New York Medical College, Valhalla, NY, USA
| | - Alan Stein
- Department of Neurosurgery, Westchester Medical Center, Valhalla, NY, USA
- Department of Neurosurgery, New York Medical College, Valhalla, NY, USA
| | - Ilya Frid
- Department of Neurosurgery, Westchester Medical Center, Valhalla, NY, USA
- Department of Neurosurgery, New York Medical College, Valhalla, NY, USA
| | - Austin B Carpenter
- Department of Neurosurgery, Westchester Medical Center, Valhalla, NY, USA
- Department of Neurosurgery, New York Medical College, Valhalla, NY, USA
| | - Sauson Soldozy
- Department of Neurosurgery, Westchester Medical Center, Valhalla, NY, USA
- Department of Neurosurgery, New York Medical College, Valhalla, NY, USA
| | - Cameron Rawanduzy
- Department of Neurosurgery, Westchester Medical Center, Valhalla, NY, USA
- Department of Neurosurgery, New York Medical College, Valhalla, NY, USA
| | - Jon Rosenberg
- Department of Neurosurgery, Westchester Medical Center, Valhalla, NY, USA
- Department of Neurosurgery, New York Medical College, Valhalla, NY, USA
| | - Andrew Bauerschmidt
- Department of Neurosurgery, Westchester Medical Center, Valhalla, NY, USA
- Department of Neurosurgery, New York Medical College, Valhalla, NY, USA
| | - Fawaz Al-Mufti
- Department of Neurosurgery, Westchester Medical Center, Valhalla, NY, USA
- Department of Neurosurgery, New York Medical College, Valhalla, NY, USA
| | - Stephan A Mayer
- Department of Neurosurgery, Westchester Medical Center, Valhalla, NY, USA
- Department of Neurosurgery, New York Medical College, Valhalla, NY, USA
| | - Merritt D Kinon
- Department of Neurosurgery, Westchester Medical Center, Valhalla, NY, USA
- Department of Neurosurgery, New York Medical College, Valhalla, NY, USA
- Department of Orthopedic Surgery, New York Medical College, 100 Woods Road, Valhalla, NY, 10595, USA
| | - John V Wainwright
- Department of Neurosurgery, Westchester Medical Center, Valhalla, NY, USA.
- Department of Neurosurgery, New York Medical College, Valhalla, NY, USA.
- Department of Orthopedic Surgery, New York Medical College, 100 Woods Road, Valhalla, NY, 10595, USA.
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15
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Mota M, Melo F, Castelo-Branco M, Campos R, Cunha M, Santos MR. Construction of the discomfort assessment scale for immobilized trauma victims (DASITV). Int Emerg Nurs 2024; 76:101501. [PMID: 39128252 DOI: 10.1016/j.ienj.2024.101501] [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: 04/24/2024] [Revised: 06/20/2024] [Accepted: 07/20/2024] [Indexed: 08/13/2024]
Abstract
BACKGROUND Immobilization is an intervention widely administered to trauma victims and aims to reduce the victim's movements, ensuring the alignment of anatomical structures suspected of being injured. Despite the benefits of immobilization, it is responsible for the occurrence of pressure injuries, increases in intercranial pressure, pain, and discomfort. AIM To develop an instrument to assess the discomfort caused by immobilization in trauma victims - Discomfort Assessment Scale for Immobilized Trauma Victims (DASITV). METHODS A sequential mixed-methods design was used, divided into three distinct but complementary phases: (1) Conceptualization Phase - Construction of the DASITV; (2) Focus Group with a Panel of ten Technical Experts in the care of immobilized trauma victims to approve the DASITV proposal; (3) Acceptance of the scale proposal using a modified e-Delphi technique with 30 pre-hospital health professionals. RESULTS The first phase led to the construction of a scale made up of two sub-scales. The Numerical Discomfort Scale assesses the level of discomfort the person reports from 0 to 10, with 0 being no discomfort and 10 being maximum discomfort. The second evaluation parameter gives the level of pressure in mmHg that the body exerts on the surface where it is immobilized. The combined interpretation of these two sub-scales leads to 4 different possibilities - ordered by level of severity. The Focus Group made it possible to improve the scale, with input from the group of experts and, using the modified e-Delphi technique, a wider group of professionals showed agreement with the DASITV. CONCLUSION This study allowed us to propose a preliminary scale to assess the discomfort felt by victims of trauma caused by immobilization.
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Affiliation(s)
- Mauro Mota
- Department of Community Medicine, Information and Health Decision Sciences, University of Porto, Porto, Portugal; UICISA: E/ESEnfC - Cluster at the Health School of Polytechnic Institute of Viseu, Viseu, Portugal; Health School of the Polytechnic Institute of Viseu, Portugal; CINTESIS@RISE - Center for Health Technology and Services Research, University of Porto, Porto, Portugal; Academic Clinical Centre of Beiras, Portugal.
| | - Filipe Melo
- Institute of Biomedical Sciences Abel Salazar, University of Porto, Porto, Portugal; Active Ageing Competence Centre, Portugal
| | - Miguel Castelo-Branco
- Academic Clinical Centre of Beiras, Portugal; Faculty of Health Sciences, University of Beira Interior, Covilhã, Portugal; UBI-Health Sciencies Reserarch Centre, Portugal; University Hospital Centre of Cova da Beira, Portugal
| | - Rui Campos
- National Institute of Medical Emergêncy, Portugal
| | - Madalena Cunha
- UICISA: E/ESEnfC - Cluster at the Health School of Polytechnic Institute of Viseu, Viseu, Portugal; Health School of the Polytechnic Institute of Viseu, Portugal; Academic Clinical Centre of Beiras, Portugal
| | - Margarida Reis Santos
- CINTESIS@RISE - Center for Health Technology and Services Research, University of Porto, Porto, Portugal; Institute of Biomedical Sciences Abel Salazar, University of Porto, Porto, Portugal; Nursing School of Porto, Porto, Portugal
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16
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Chen G, Shangguan Z, Ye X, Chen Z, Li J, Liu W. STM2457 Inhibits METTL3-Mediated m6A Modification of miR-30c to Alleviate Spinal Cord Injury by Inducing the ATG5-Mediated Autophagy. Neurospine 2024; 21:925-941. [PMID: 39363472 PMCID: PMC11456927 DOI: 10.14245/ns.2448494.247] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2024] [Revised: 06/28/2024] [Accepted: 07/03/2024] [Indexed: 10/05/2024] Open
Abstract
OBJECTIVE The study aimed to investigate the role of N6-methyladenosine (m6A) modification in spinal cord injury (SCI) and its underlying mechanism, focusing on the interplay between m6A methyltransferase-like 3 (METTL3), miR-30c, and autophagy-related proteins. METHODS An SCI model was established in rats, and changes in autophagy-related proteins, m6A methylation levels, and miR-30c levels were analyzed. Hydrogen peroxide (H2O2)-stimulated spinal cord neuron cells (SCNCs) were used to assess the impact of METTL3 overexpression. The effects of STM2457, an antagonist of METTL3, were evaluated on cell viability, apoptosis, and autophagy markers in H2O2-stimulated SCNCs. RESULTS In the SCI model, decreased levels of autophagy markers and increased m6A methylation, miR-30c levels, and METTL3 were observed. Overexpression of METTL3 in SCNCs led to reduced cell viability, increased apoptosis, and suppressed autophagy. Conversely, co-overexpression of autophagy-related protein 5 (ATG5) or miR-30c inhibition reversed these effects. Knocking out METTL3 yielded opposite results. STM2457 treatment improved cell viability, reduced apoptosis, and upregulated autophagy markers in SCNCs, which also enhanced functional recovery in rats as measured by the Basso-Beattie-Bresnahan score and inclined plate test. CONCLUSION STM2457 alleviated SCI by suppressing METTL3-mediated m6A modification of miR-30c, which in turn induces ATG5-mediated autophagy. This study provides insights into the role of m6A modification in SCI and suggests a potential therapeutic approach through targeting METTL3.
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Affiliation(s)
- Gang Chen
- Department of Orthopedics, Fujian Medical University Union Hospital, Fuzhou City, Fujian Province, China
| | - Zhitao Shangguan
- Department of Orthopedics, Fujian Medical University Union Hospital, Fuzhou City, Fujian Province, China
| | - Xiaoqing Ye
- Department of Orthopedics, Fujian Medical University Union Hospital, Fuzhou City, Fujian Province, China
| | - Zhi Chen
- Department of Orthopedics, Fujian Medical University Union Hospital, Fuzhou City, Fujian Province, China
| | - Jiandong Li
- Department of Orthopedics, Fujian Medical University Union Hospital, Fuzhou City, Fujian Province, China
| | - Wenge Liu
- Department of Orthopedics, Fujian Medical University Union Hospital, Fuzhou City, Fujian Province, China
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Wang Y, Zhao T, Chen WC, Zheng Y, Xu W, Huang S. miR-540-3p partially recovers the locomotor function of spinal cord injury mice by targeting SIX4/Yap1 and inactivation of astrocytes. Neurol Res 2024; 46:823-834. [PMID: 38920017 DOI: 10.1080/01616412.2024.2359263] [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: 03/02/2024] [Accepted: 05/19/2024] [Indexed: 06/27/2024]
Abstract
BACKGROUND Spinal cord injury (SCI) lacks therapeutic reagents. miRNAs are responsible for mesenchymal stem cells (MSCs) therapy in spinal cord injury. PURPOSE To discover the underlying therapeutic miRNA target and its mechanism for the treatment of SCI. METHOD Two RNA sequence datasets were retrieved from the GEO Datasets database which was accessed on 30 December 2023. The targets of the top 2 ranked miRNAs (miR-540-3p and miR-433-5p) were analyzed using online databases (miRDB, miRMap, TargetScan and STRING database) and both miRNAs were screened by cell counting kit-8 (CCK-8) assay. Then, transfection and local injection of miR-540-3p were performed to examine the capacity of secretion of astrocytes and the locomotor function of SCI mice. RESULTS The significantly high levels of miR-540-3p/433-5p were revealed. Transfection of miR-540-3p conferred inactivation of reactive astrocytes and weakened the capacity of secreting inflammatory cytokines of astrocytes. miR-433-5p was proven to not impact the proliferation of astrocytes. Co-culture of culture supernate from astrocytes transfected with miR-540-3p and neurons demonstrated the significantly preserved neurite length and decreased apoptotic level of neurons. Meanwhile, sine oculis homeobox (SIX4)/Yap1, as the target of miR-540-3p, is critical for abrogating inflammatory damage of neurons in vivo and in vitro, decreasing glial scar, and recovering locomotor function of spinal cord injury mice. Furthermore, SCI mice receiving a local injection of miR-540-3p showed smaller and lighter bladder volume and higher limb strength, but the period from urinary retention to autonomous urination of SCI mice showed no significance. CONCLUSIONS Conclusively, miR-540 discovered from hypoxia-treated exosomes suppresses the inflammatory cytokines secreted by reactive astrocytes, partially preserves the neuronal function of spinal cord injury mice, through the SIX4/Yap1 signalling pathway.
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Affiliation(s)
- Yang Wang
- Department of Orthopedics, Second Affiliated Hospital of Guangzhou Medical University, Guangzhou, Guangdong, China
| | - Tianlun Zhao
- Department of Orthopedics, Third Affiliated Hospital of Sun Yat-Sen University, Guangzhou, Guangdong Province, China
| | - Wei-Chih Chen
- Department of Orthopedics, Second Affiliated Hospital of Guangzhou Medical University, Guangzhou Medical University, Guangzhou, Guangdong Province, China
| | - Yongsheng Zheng
- Department of Orthopedics, The First Affiliated Hospital of Nanchang University, Nanchang University, Nanchang, Jiangxi, China
| | - Weikang Xu
- Biomedical Materials Laboratory, Institute of Biological and Medical Engineering, Guangdong Academy of Sciences, Jianghai Avenue Centra, Guangzhou, Guangdong, China
| | - Shuai Huang
- Department of Orthopedics, Second Affiliated Hospital of Guangzhou Medical University, Guangzhou, Guangdong, China
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18
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Zhang ZH, Wu TY, Ju C, Zuo XS, Wang XK, Ma YG, Luo L, Zhu ZJ, Song ZW, Yao Z, Zhou J, Wang Z, Hu XY. Photobiomodulation Increases M2-Type Polarization of Macrophages by Inhibiting Versican Production After Spinal Cord Injury. Mol Neurobiol 2024; 61:6950-6967. [PMID: 38363534 DOI: 10.1007/s12035-024-03980-5] [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: 07/17/2023] [Accepted: 01/21/2024] [Indexed: 02/17/2024]
Abstract
Spinal cord injury (SCI) is a catastrophic accidence with little effective treatment, and inflammation played an important role in that. Previous studies showed photobiomodulation (PBM) could effectively downregulate the process of inflammation with modification of macrophage polarization after SCI; however, the potential mechanism behind that is still unclear. In the presented study, we aimed to investigate the effect of PBM on the expression level of versican, a matrix molecular believed to be associated with inflammation, and tried to find the mechanism on how that could regulate the inflammation process. Using immunofluorescence technique and western blot, we found the expression level of versican is increased after injury and markedly downregulated by irradiation treatment. Using virus intrathecal injection, we found the knock-down of versican could produce the effect similar to that of PBM and might have an effect on inflammation and macrophage polarization after SCI. To further verify the deduction, we peptide the supernatant of astrocytes to induce M0, M1, and M2 macrophages. We found that the versican produced by astrocytes might have a role on the promotion of M2 macrophages to inflammatory polarization. Finally, we investigated the potential pathway in the regulation of M2 polarization with the induction of versican. This study tried to give an interpretation on the mechanism of inflammation inhibition for PBM in the perspective of matrix regulation. Our results might provide light on the inflammation regulation after SCI.
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Affiliation(s)
- Zhi-Hao Zhang
- General Hospital of Northern Theater Command, Shenyang, 110000, Liaoning Province, China
- Department of Orthopedics, Xijing Hospital, Air Force Military Medical University, Xi'an, 710032, Shaanxi Province, China
| | - Ting-Yu Wu
- Department of Orthopedics, Xijing Hospital, Air Force Military Medical University, Xi'an, 710032, Shaanxi Province, China
| | - Cheng Ju
- Department of Orthopedics, Xijing Hospital, Air Force Military Medical University, Xi'an, 710032, Shaanxi Province, China
| | - Xiao-Shuang Zuo
- Department of Orthopedics, Xijing Hospital, Air Force Military Medical University, Xi'an, 710032, Shaanxi Province, China
| | - Xuan-Kang Wang
- Department of Orthopedics, Xijing Hospital, Air Force Military Medical University, Xi'an, 710032, Shaanxi Province, China
| | - Yang-Guang Ma
- Department of Orthopedics, Xijing Hospital, Air Force Military Medical University, Xi'an, 710032, Shaanxi Province, China
| | - Liang Luo
- Department of Orthopedics, Xijing Hospital, Air Force Military Medical University, Xi'an, 710032, Shaanxi Province, China
| | - Zhi-Jie Zhu
- Department of Orthopedics, Xijing Hospital, Air Force Military Medical University, Xi'an, 710032, Shaanxi Province, China
| | - Zhi-Wen Song
- Department of Orthopedics, Xijing Hospital, Air Force Military Medical University, Xi'an, 710032, Shaanxi Province, China
| | - Zhou Yao
- Department of Orthopedics, Xijing Hospital, Air Force Military Medical University, Xi'an, 710032, Shaanxi Province, China
| | - Jie Zhou
- Department of Orthopedics, Xijing Hospital, Air Force Military Medical University, Xi'an, 710032, Shaanxi Province, China
| | - Zhe Wang
- Department of Orthopedics, Xijing Hospital, Air Force Military Medical University, Xi'an, 710032, Shaanxi Province, China.
| | - Xue-Yu Hu
- Department of Orthopedics, Xijing Hospital, Air Force Military Medical University, Xi'an, 710032, Shaanxi Province, China.
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19
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Xian Y, Liu J, Dai M, Zhang W, He M, Wei Z, Jiang Y, Le S, Lin Z, Tang S, Zhou Y, Dong L, Liang J, Zhang J, Wang L. Microglia Promote Lymphangiogenesis Around the Spinal Cord Through VEGF-C/VEGFR3-Dependent Autophagy and Polarization After Acute Spinal Cord Injury. Mol Neurobiol 2024:10.1007/s12035-024-04437-5. [PMID: 39158788 DOI: 10.1007/s12035-024-04437-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2024] [Accepted: 08/09/2024] [Indexed: 08/20/2024]
Abstract
Reducing secondary injury is a key focus in the field of spinal cord injury (SCI). Recent studies have revealed the role of lymphangiogenesis in reducing secondary damage to central nerve. However, the mechanism of lymphangiogenesis is not yet clear. Macrophages have been shown to play an important role in peripheral tissue lymphangiogenesis. Microglia is believed to play a role similar to macrophages in the central nervous system (CNS); we hypothesized that there was a close relationship between microglia and central nerve system lymphangiogenesis. Herein, we used an in vivo model of SCI to explored the relationship between microglia and spinal cord lymphangiogenesis and further investigated the polarization of microglia and its role in promoting spinal cord lymphangiogenesis by a series of in vitro experiments. The current study elucidated for the first time the relationship between microglia and lymphangiogenesis around the spinal cord after SCI. Classical activated (M1) microglia can promote lymphangiogenesis by secreting VEGF-C which further increases polarization and secretion of lymphatic growth factor by activating VEGFR3. The VEGF-C/VEGFR3 pathway activation downregulates microglia autophagy, thereby regulating the microglia phenotype. These results indicate that M1 microglia promote lymphangiogenesis after SCI, and activated VEGF-C/VEGFR3 signaling promotes M1 microglia polarization by inhibiting autophagy, thereby facilitates lymphangiogenesis.
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Grants
- 202102020768 Science and Technology Program of Guangzhou, China
- 202102020768 Science and Technology Program of Guangzhou, China
- 202102020768 Science and Technology Program of Guangzhou, China
- 202102020768 Science and Technology Program of Guangzhou, China
- 202102020768 Science and Technology Program of Guangzhou, China
- 202102020768 Science and Technology Program of Guangzhou, China
- 202102020768 Science and Technology Program of Guangzhou, China
- 202102020768 Science and Technology Program of Guangzhou, China
- 202102020768 Science and Technology Program of Guangzhou, China
- 202102020768 Science and Technology Program of Guangzhou, China
- 202102020768 Science and Technology Program of Guangzhou, China
- 202102020768 Science and Technology Program of Guangzhou, China
- 202102020768 Science and Technology Program of Guangzhou, China
- 202102020768 Science and Technology Program of Guangzhou, China
- 202102020768 Science and Technology Program of Guangzhou, China
- 82072433 National Natural Science Foundation of China
- 82072433 National Natural Science Foundation of China
- 82072433 National Natural Science Foundation of China
- 82072433 National Natural Science Foundation of China
- 82072433 National Natural Science Foundation of China
- 82072433 National Natural Science Foundation of China
- 82072433 National Natural Science Foundation of China
- 82072433 National Natural Science Foundation of China
- 82072433 National Natural Science Foundation of China
- 82072433 National Natural Science Foundation of China
- 82072433 National Natural Science Foundation of China
- 82072433 National Natural Science Foundation of China
- 82072433 National Natural Science Foundation of China
- 82072433 National Natural Science Foundation of China
- 82072433 National Natural Science Foundation of China
- 2214050002081 Natural Science Foundation of Guangdong Province
- 2214050002081 Natural Science Foundation of Guangdong Province
- 2214050002081 Natural Science Foundation of Guangdong Province
- 2214050002081 Natural Science Foundation of Guangdong Province
- 2214050002081 Natural Science Foundation of Guangdong Province
- 2214050002081 Natural Science Foundation of Guangdong Province
- 2214050002081 Natural Science Foundation of Guangdong Province
- 2214050002081 Natural Science Foundation of Guangdong Province
- 2214050002081 Natural Science Foundation of Guangdong Province
- 2214050002081 Natural Science Foundation of Guangdong Province
- 2214050002081 Natural Science Foundation of Guangdong Province
- 2214050002081 Natural Science Foundation of Guangdong Province
- 2214050002081 Natural Science Foundation of Guangdong Province
- 2214050002081 Natural Science Foundation of Guangdong Province
- 2214050002081 Natural Science Foundation of Guangdong Province
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Affiliation(s)
- Yeyang Xian
- Tianhe District, Guangdong Province, The Third Affiliated Hospital, Southern Medical University, Zhongshandadao West 183, Guangzhou City, 510000, China
| | - Jie Liu
- Tianhe District, Guangdong Province, The Third Affiliated Hospital, Southern Medical University, Zhongshandadao West 183, Guangzhou City, 510000, China
| | - Mengxuan Dai
- Tianhe District, Guangdong Province, The Third Affiliated Hospital, Southern Medical University, Zhongshandadao West 183, Guangzhou City, 510000, China
| | - Wensheng Zhang
- Tianhe District, Guangdong Province, The Third Affiliated Hospital, Southern Medical University, Zhongshandadao West 183, Guangzhou City, 510000, China
| | - Minye He
- Tianhe District, Guangdong Province, The Third Affiliated Hospital, Southern Medical University, Zhongshandadao West 183, Guangzhou City, 510000, China
| | - Zhengnong Wei
- Tianhe District, Guangdong Province, The Third Affiliated Hospital, Southern Medical University, Zhongshandadao West 183, Guangzhou City, 510000, China
| | - Yutao Jiang
- Tianhe District, Guangdong Province, The Third Affiliated Hospital, Southern Medical University, Zhongshandadao West 183, Guangzhou City, 510000, China
| | - Shiyong Le
- Tianhe District, Guangdong Province, The Third Affiliated Hospital, Southern Medical University, Zhongshandadao West 183, Guangzhou City, 510000, China
| | - Zhuoang Lin
- Tianhe District, Guangdong Province, The Third Affiliated Hospital, Southern Medical University, Zhongshandadao West 183, Guangzhou City, 510000, China
| | - Shuai Tang
- Tianhe District, Guangdong Province, The Third Affiliated Hospital, Southern Medical University, Zhongshandadao West 183, Guangzhou City, 510000, China
| | - Yunfei Zhou
- Tianhe District, Guangdong Province, The Third Affiliated Hospital, Southern Medical University, Zhongshandadao West 183, Guangzhou City, 510000, China
| | - Liming Dong
- Tianhe District, Guangdong Province, The Third Affiliated Hospital, Southern Medical University, Zhongshandadao West 183, Guangzhou City, 510000, China
| | - Jinzheng Liang
- Tianhe District, Guangdong Province, The Third Affiliated Hospital, Southern Medical University, Zhongshandadao West 183, Guangzhou City, 510000, China
| | - Jie Zhang
- Tianhe District, Guangdong Province, The Third Affiliated Hospital, Southern Medical University, Zhongshandadao West 183, Guangzhou City, 510000, China.
| | - Liang Wang
- Tianhe District, Guangdong Province, The Third Affiliated Hospital, Southern Medical University, Zhongshandadao West 183, Guangzhou City, 510000, China.
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20
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Qiu W, Zhou B, Luo Y, Chen Y, Chen Z, Wu K, Wu H, Wu B, Guo J, Fang F. An Optimized Decellularized Extracellular Matrix from Dental Pulp Stem Cell Sheets Promotes Axonal Regeneration by Multiple Modes in Spinal Cord Injury Rats. Adv Healthc Mater 2024:e2402312. [PMID: 39148180 DOI: 10.1002/adhm.202402312] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2024] [Revised: 08/07/2024] [Indexed: 08/17/2024]
Abstract
In the field of tissue engineering, the extracellular matrix (ECM) is considered an important element for promoting neural regeneration after spinal cord injury (SCI). Dental pulp stem cells (DPSCs), mesenchymal stem cells that originate from the neural crest, are easy to harvest and culture in vitro, express a variety of neurotrophic factors (NTFs) and deposit a large amount of ECM, making them a good choice for stem cell- or ECM-based treatment of SCI. In the present study, decellularized extracellular matrix (dECM) derived from DPSC sheets is used for the treatment of SCI. Optimization experiments reveal that incubating DPSC sheets with 1% Triton X-100 for 5 min is the best procedure for preparing DPSC dECM. It is found that DPSC dECM promotes nerve repair and regeneration after SCI and restores hindlimb motor function in rats. Mechanistically, DPSC dECM facilitates the migration and neural differentiation of neural stem cells, as well as M2 polarization of microglia, and inhibits the formation of glial scars. This study suggests that the use of DPSC dECM is a potential strategy for the treatment of SCI.
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Affiliation(s)
- Wei Qiu
- Department of Stomatology, Nanfang Hospital, Southern Medical University, Guangzhou, 510515, P. R. China
| | - Bangyi Zhou
- Department of Stomatology, Nanfang Hospital, Southern Medical University, Guangzhou, 510515, P. R. China
| | - Yifei Luo
- Department of Stomatology, Guangzhou First People's Hospital, School of Medicine, South China University of Technology, Guangzhou, 510180, P. R. China
| | - Yuanting Chen
- Shenzhen Stomatology Hospital (Pingshan), Southern Medical University, Shenzhen, 518118, P. R. China
| | - Zehao Chen
- Department of Stomatology, Nanfang Hospital, Southern Medical University, Guangzhou, 510515, P. R. China
| | - Keke Wu
- School of Biomedical Engineering, Guangzhou Medical University, Guangzhou, 511495, P. R. China
| | - Hongle Wu
- Department of Endodontics, Stomatological Hospital, School of Stomatology, Southern Medical University, Guangzhou, 510280, P. R. China
| | - Buling Wu
- Department of Stomatology, Nanfang Hospital, Southern Medical University, Guangzhou, 510515, P. R. China
- Shenzhen Stomatology Hospital (Pingshan), Southern Medical University, Shenzhen, 518118, P. R. China
| | - Jinshan Guo
- Department of Histology and Embryology, School of Basic Medical Sciences, Southern Medical University, Guangzhou, 510515, P. R. China
| | - Fuchun Fang
- Department of Stomatology, Nanfang Hospital, Southern Medical University, Guangzhou, 510515, P. R. China
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21
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Zhao H, Xiong T, Chu Y, Hao W, Zhao T, Sun X, Zhuang Y, Chen B, Zhao Y, Wang J, Chen Y, Dai J. Biomimetic Dual-Network Collagen Fibers with Porous and Mechanical Cues Reconstruct Neural Stem Cell Niche via AKT/YAP Mechanotransduction after Spinal Cord Injury. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2024; 20:e2311456. [PMID: 38497893 DOI: 10.1002/smll.202311456] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/08/2023] [Revised: 02/21/2024] [Indexed: 03/19/2024]
Abstract
Tissue engineering scaffolds can mediate the maneuverability of neural stem cell (NSC) niche to influence NSC behavior, such as cell self-renewal, proliferation, and differentiation direction, showing the promising application in spinal cord injury (SCI) repair. Here, dual-network porous collagen fibers (PCFS) are developed as neurogenesis scaffolds by employing biomimetic plasma ammonia oxidase catalysis and conventional amidation cross-linking. Following optimizing the mechanical parameters of PCFS, the well-matched Young's modulus and physiological dynamic adaptability of PCFS (4.0 wt%) have been identified as a neurogenetic exciter after SCI. Remarkably, porous topographies and curving wall-like protrusions are generated on the surface of PCFS by simple and non-toxic CO2 bubble-water replacement. As expected, PCFS with porous and matched mechanical properties can considerably activate the cadherin receptor of NSCs and induce a series of serine-threonine kinase/yes-associated protein mechanotransduction signal pathways, encouraging cellular orientation, neuron differentiation, and adhesion. In SCI rats, implanted PCFS with matched mechanical properties further integrated into the injured spinal cords, inhibited the inflammatory progression and decreased glial and fibrous scar formation. Wall-like protrusions of PCFS drive multiple neuron subtypes formation and even functional neural circuits, suggesting a viable therapeutic strategy for nerve regeneration and functional recovery after SCI.
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Affiliation(s)
- Haitao Zhao
- School of Biomedical Sciences and Engineering, South China University of Technology, Guangzhou International Campus, Guangzhou, 511442, China
- Key Laboratory for Nano-Bio Interface Research, Division of Nanobiomedicine, Suzhou Institute of Nano-Tech and Nano-Bionics Chinese Academy of Sciences, Suzhou, 215123, China
| | - Tiandi Xiong
- Key Laboratory for Nano-Bio Interface Research, Division of Nanobiomedicine, Suzhou Institute of Nano-Tech and Nano-Bionics Chinese Academy of Sciences, Suzhou, 215123, China
- School of Nano Technology and Nano Bionics, University of Science and Technology of China, Hefei, 230026, China
| | - Yun Chu
- Key Laboratory for Nano-Bio Interface Research, Division of Nanobiomedicine, Suzhou Institute of Nano-Tech and Nano-Bionics Chinese Academy of Sciences, Suzhou, 215123, China
- School of Nano Technology and Nano Bionics, University of Science and Technology of China, Hefei, 230026, China
| | - Wangping Hao
- Key Laboratory for Nano-Bio Interface Research, Division of Nanobiomedicine, Suzhou Institute of Nano-Tech and Nano-Bionics Chinese Academy of Sciences, Suzhou, 215123, China
| | - Tongtong Zhao
- Key Laboratory for Nano-Bio Interface Research, Division of Nanobiomedicine, Suzhou Institute of Nano-Tech and Nano-Bionics Chinese Academy of Sciences, Suzhou, 215123, China
- School of Nano Technology and Nano Bionics, University of Science and Technology of China, Hefei, 230026, China
| | - Xinyue Sun
- Key Laboratory for Nano-Bio Interface Research, Division of Nanobiomedicine, Suzhou Institute of Nano-Tech and Nano-Bionics Chinese Academy of Sciences, Suzhou, 215123, China
- School of Nano Technology and Nano Bionics, University of Science and Technology of China, Hefei, 230026, China
| | - Yan Zhuang
- Key Laboratory for Nano-Bio Interface Research, Division of Nanobiomedicine, Suzhou Institute of Nano-Tech and Nano-Bionics Chinese Academy of Sciences, Suzhou, 215123, China
- School of Nano Technology and Nano Bionics, University of Science and Technology of China, Hefei, 230026, China
| | - Bing Chen
- State Key Laboratory of Molecular Development Biology, Institute of Genetics and Developmental Biology Chinese Academy of Sciences, Beijing, 100101, China
| | - Yannan Zhao
- State Key Laboratory of Molecular Development Biology, Institute of Genetics and Developmental Biology Chinese Academy of Sciences, Beijing, 100101, China
| | - Jun Wang
- School of Biomedical Sciences and Engineering, South China University of Technology, Guangzhou International Campus, Guangzhou, 511442, China
| | - Yanyan Chen
- Key Laboratory for Nano-Bio Interface Research, Division of Nanobiomedicine, Suzhou Institute of Nano-Tech and Nano-Bionics Chinese Academy of Sciences, Suzhou, 215123, China
- School of Nano Technology and Nano Bionics, University of Science and Technology of China, Hefei, 230026, China
| | - Jianwu Dai
- Key Laboratory for Nano-Bio Interface Research, Division of Nanobiomedicine, Suzhou Institute of Nano-Tech and Nano-Bionics Chinese Academy of Sciences, Suzhou, 215123, China
- School of Nano Technology and Nano Bionics, University of Science and Technology of China, Hefei, 230026, China
- State Key Laboratory of Molecular Development Biology, Institute of Genetics and Developmental Biology Chinese Academy of Sciences, Beijing, 100101, China
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22
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Wang W, Kong D, Ju X, Chen F, Yang X. A commentary on 'Prognosis and conditional nomogram of cervical spine fracture in patients with severe spinal cord injury: a multicenter retrospective study'. Int J Surg 2024; 110:4407-4408. [PMID: 38215255 PMCID: PMC11254238 DOI: 10.1097/js9.0000000000001062] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2023] [Accepted: 12/20/2023] [Indexed: 01/14/2024]
Affiliation(s)
- WenJian Wang
- Trauma Center, Jinan Central Hospital Affiliated to Shandong First Medical University
| | - Desheng Kong
- Department of Neurosurgery, Peking University International Hospital, Beijing, People’s Republic of China
| | - Xiaocong Ju
- Department of Orthopedics, The Third Affiliated Hospital of Shandong First Medical University, Jinan, Shandong
| | - Feng Chen
- Department of Oncology, Jinan Central Hospital Affiliated to Shandong First Medical University
| | - Xufeng Yang
- Trauma Center, Jinan Central Hospital Affiliated to Shandong First Medical University
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González-Fernández C, González P, Maqueda A, Pérez V, Rodríguez FJ. Enhancing motor functional recovery in spinal cord injury through pharmacological inhibition of Dickkopf-1 with BHQ880 antibody. Biomed Pharmacother 2024; 176:116792. [PMID: 38795645 DOI: 10.1016/j.biopha.2024.116792] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2024] [Revised: 05/15/2024] [Accepted: 05/17/2024] [Indexed: 05/28/2024] Open
Abstract
BACKGROUND Mounting experimental evidence has underscored the remarkable role played by the Wnt family of proteins in the spinal cord functioning and therapeutic potential in spinal cord injury (SCI). We aim to provide a therapeutic prospect associated with the modulation of canonical Wnt signaling, examining the spatio-temporal expression pattern of Dickkopf-1 (Dkk1) and its neutralization after SCI. We employ an intraparenchymal injection of the clinically validated Dkk1-blocking antibody, BHQ880, to elucidate its effects in SCI. METHODS A rat model of contusion SCI was used. Histological analyses were performed, wherein Dkk1 protein was sought, and ELISA analyses were employed for Dkk1 detection in cerebrospinal fluid and serum. To ascertain the BHQ880 therapeutic effect, rats were subjected to SCI and then injected with the antibody in the lesion epicenter 24 hours post-injury (hpi). Subsequent evaluation of motor functional recovery extended up to 56 days post-injury (dpi). qRT-PCR and histological analyses were conducted. RESULTS We demonstrate the presence of Dkk1 in the healthy rat spinal cord, with pronounced alterations observed following injury, primarily concentrated in the epicenter regions. Notably, a significative upregulation of Dkk1 was detected at 24 hpi, peaking at 3 dpi and remaining elevated until 42 dpi. Moreover, we revealed that early administration of BHQ880 considerably improved motor functional recovery, promoted preservation of myelinated tissue, and reduced astroglial and microglia/macrophage reactivity. Furthermore, there was a decrease in the acute expression of different inflammatory genes. CONCLUSIONS Collectively, our findings highlight the therapeutic potential of BHQ880 treatment in the context of SCI.
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Affiliation(s)
- Carlos González-Fernández
- Laboratory of Molecular Neurology, Fundación Hospital Nacional de Parapléjicos Para la Investigación y la Integración, Instituto de Investigación Sanitaria de Castilla-La Mancha (IDISCAM), Carretera Finca la Peraleda, s/n, Toledo 45071, Spain.
| | - Pau González
- Laboratory of Molecular Neurology, Fundación Hospital Nacional de Parapléjicos Para la Investigación y la Integración, Instituto de Investigación Sanitaria de Castilla-La Mancha (IDISCAM), Carretera Finca la Peraleda, s/n, Toledo 45071, Spain; Laboratory of Molecular Neurology, Hospital Nacional de Parapléjicos, SESCAM, Instituto de Investigación Sanitaria de Castilla-La Mancha (IDISCAM), Carretera Finca la Peraleda, s/n, Toledo 45071, Spain
| | - Alfredo Maqueda
- Laboratory of Molecular Neurology, Fundación Hospital Nacional de Parapléjicos Para la Investigación y la Integración, Instituto de Investigación Sanitaria de Castilla-La Mancha (IDISCAM), Carretera Finca la Peraleda, s/n, Toledo 45071, Spain; Laboratory of Molecular Neurology, Hospital Nacional de Parapléjicos, SESCAM, Instituto de Investigación Sanitaria de Castilla-La Mancha (IDISCAM), Carretera Finca la Peraleda, s/n, Toledo 45071, Spain
| | - Virginia Pérez
- Laboratory of Molecular Neurology, Fundación Hospital Nacional de Parapléjicos Para la Investigación y la Integración, Instituto de Investigación Sanitaria de Castilla-La Mancha (IDISCAM), Carretera Finca la Peraleda, s/n, Toledo 45071, Spain; Laboratory of Molecular Neurology, Hospital Nacional de Parapléjicos, SESCAM, Instituto de Investigación Sanitaria de Castilla-La Mancha (IDISCAM), Carretera Finca la Peraleda, s/n, Toledo 45071, Spain
| | - Francisco Javier Rodríguez
- Laboratory of Molecular Neurology, Fundación Hospital Nacional de Parapléjicos Para la Investigación y la Integración, Instituto de Investigación Sanitaria de Castilla-La Mancha (IDISCAM), Carretera Finca la Peraleda, s/n, Toledo 45071, Spain; Laboratory of Molecular Neurology, Hospital Nacional de Parapléjicos, SESCAM, Instituto de Investigación Sanitaria de Castilla-La Mancha (IDISCAM), Carretera Finca la Peraleda, s/n, Toledo 45071, Spain.
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24
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Wu Y, Wang Y, Lu Y, Yan J, Zhao H, Yang R, Pan J. Research advances in huntingtin-associated protein 1 and its application prospects in diseases. Front Neurosci 2024; 18:1402996. [PMID: 38975245 PMCID: PMC11224548 DOI: 10.3389/fnins.2024.1402996] [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: 03/18/2024] [Accepted: 06/06/2024] [Indexed: 07/09/2024] Open
Abstract
Huntingtin-associated protein 1 (HAP1) was the first protein discovered to interact with huntingtin. Besides brain, HAP1 is also expressed in the spinal cord, dorsal root ganglion, endocrine, and digestive systems. HAP1 has diverse functions involving in vesicular transport, receptor recycling, gene transcription, and signal transduction. HAP1 is strongly linked to several neurological diseases, including Huntington's disease, Alzheimer's disease, epilepsy, ischemic stroke, and depression. In addition, HAP1 has been proved to participate in cancers and diabetes mellitus. This article provides an overview of HAP1 regarding the tissue distribution, cell localization, functions, and offers fresh perspectives to investigate its role in diseases.
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Affiliation(s)
| | | | | | | | | | | | - Jingying Pan
- Department of Histology and Embryology, Medical School of Nantong University, Nantong, China
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25
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Kim JW, Kim J, Lee SM, Rim YA, Sung YC, Nam Y, Kim HJ, Kim H, Jung SI, Lim J, Ju JH. Combination of induced pluripotent stem cell-derived motor neuron progenitor cells with irradiated brain-derived neurotrophic factor over-expressing engineered mesenchymal stem cells enhanced restoration of axonal regeneration in a chronic spinal cord injury rat model. Stem Cell Res Ther 2024; 15:173. [PMID: 38886817 PMCID: PMC11184802 DOI: 10.1186/s13287-024-03770-9] [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: 11/28/2023] [Accepted: 05/26/2024] [Indexed: 06/20/2024] Open
Abstract
BACKGROUND Spinal cord injury (SCI) is a disease that causes permanent impairment of motor, sensory, and autonomic nervous system functions. Stem cell transplantation for neuron regeneration is a promising strategic treatment for SCI. However, selecting stem cell sources and cell transplantation based on experimental evidence is required. Therefore, this study aimed to investigate the efficacy of combination cell transplantation using the brain-derived neurotrophic factor (BDNF) over-expressing engineered mesenchymal stem cell (BDNF-eMSC) and induced pluripotent stem cell-derived motor neuron progenitor cell (iMNP) in a chronic SCI rat model. METHOD A contusive chronic SCI was induced in Sprague-Dawley rats. At 6 weeks post-injury, BDNF-eMSC and iMNP were transplanted into the lesion site via the intralesional route. At 12 weeks post-injury, differentiation and growth factors were evaluated through immunofluorescence staining and western blot analysis. Motor neuron differentiation and neurite outgrowth were evaluated by co-culturing BDNF-eMSC and iMNP in vitro in 2-dimensional and 3-dimensional. RESULTS Combination cell transplantation in the chronic SCI model improved behavioral recovery more than single-cell transplantation. Additionally, combination cell transplantation enhanced mature motor neuron differentiation and axonal regeneration at the injured spinal cord. Both BDNF-eMSC and iMNP played a critical role in neurite outgrowth and motor neuron maturation via BDNF expression. CONCLUSIONS Our results suggest that the combined transplantation of BDNF- eMSC and iMNP in chronic SCI results in a significant clinical recovery. The transplanted iMNP cells predominantly differentiated into mature motor neurons. Additionally, BDNF-eMSC exerts a paracrine effect on neuron regeneration through BDNF expression in the injured spinal cord.
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Affiliation(s)
- Jang-Woon Kim
- CiSTEM laboratory, Catholic iPSC Research Center (CiRC), College of Medicine, The Catholic University of Korea, Seoul, 137-701, Republic of Korea
- Department of Biomedicine & Health Science, Seoul St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Seoul, Republic of Korea
| | - Juryun Kim
- YiPSCELL, Inc., Seoul, Republic of Korea
| | | | - Yeri Alice Rim
- CiSTEM laboratory, Catholic iPSC Research Center (CiRC), College of Medicine, The Catholic University of Korea, Seoul, 137-701, Republic of Korea
- Department of Biomedicine & Health Science, Seoul St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Seoul, Republic of Korea
| | | | - Yoojun Nam
- YiPSCELL, Inc., Seoul, Republic of Korea
| | | | - Hyewon Kim
- YiPSCELL, Inc., Seoul, Republic of Korea
| | - Se In Jung
- CiSTEM laboratory, Catholic iPSC Research Center (CiRC), College of Medicine, The Catholic University of Korea, Seoul, 137-701, Republic of Korea
- Department of Biomedicine & Health Science, Seoul St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Seoul, Republic of Korea
| | - Jooyoung Lim
- CiSTEM laboratory, Catholic iPSC Research Center (CiRC), College of Medicine, The Catholic University of Korea, Seoul, 137-701, Republic of Korea
- Department of Biomedicine & Health Science, Seoul St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Seoul, Republic of Korea
| | - Ji Hyeon Ju
- CiSTEM laboratory, Catholic iPSC Research Center (CiRC), College of Medicine, The Catholic University of Korea, Seoul, 137-701, Republic of Korea.
- Department of Biomedicine & Health Science, Seoul St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Seoul, Republic of Korea.
- Division of Rheumatology, Department of Internal Medicine, Seoul St. Mary's Hospital, Institute of Medical Science, College of Medicine, The Catholic University of Korea, Seoul, 137-701, Republic of Korea.
- YiPSCELL, Inc., Seoul, Republic of Korea.
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26
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Wu H, Wang Q, Liao Y, Wang S. MSC-derived exosomes deliver ZBTB4 to mediate transcriptional repression of ITIH3 in astrocytes in spinal cord injury. Brain Res Bull 2024; 212:110954. [PMID: 38641154 DOI: 10.1016/j.brainresbull.2024.110954] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2023] [Revised: 12/30/2023] [Accepted: 04/16/2024] [Indexed: 04/21/2024]
Abstract
BACKGROUND BMSC-secreted exosomes (BMSC-Exos) have shown potential for promoting behavioral recovery following spinal cord injury (SCI). However, its role in blocking astrocyte activation remains unclear. Thus, this study aimed to determine whether BMSC-Exos impair the function of astrocytes following SCI in mice and to seek the mechanism. METHODS BMSC-Exos were collected by ultracentrifugation and identified. The SCI mice were developed by laminectomy combined with spinal cord shock, followed by BMSC-Exos or nerve growth factor (positive control) treatment. HE staining, Nissl staining, and TUNEL were conducted to analyze the pathological structural damage and neuronal damage in the mouse spinal cord. Bioinformatics was used to screen altered molecules under the BMSC-Exos treatment. Effects of BMSC-Exos and changes in ZBTB4 and ITIH3 expression on neuronal damage induced by activated astrocytes in the co-culture system were analyzed by CCK-8 and flow cytometry. RESULTS Nerve growth factor and BMSC-Exos promoted motor function recovery, alleviated nerve injury, and reduced apoptosis in mice with SCI. ZBTB4 was enriched in BMSC-Exos and lowly expressed in SCI. Downregulation of ZBTB4 diminished the therapeutic effects of BMSC-Exos against SCI. ITIH3 was a downstream target of ZBTB4. Neurotoxic activation of astrocytes induced neuronal injury, which was alleviated by BMSC-Exos. However, ZBTB4 knockdown overturned the effects of BMSC-Exos in vitro and combined ITIH3 knockdown alleviated the accentuating effects of ZBTB4 knockdown on neuronal injury. CONCLUSION BMSC-Exos protected against astrocyte-induced neuronal injury by delivering ZBTB4 to repress ITIH3, ultimately improving motor function in mice with SCI.
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Affiliation(s)
- Hongzi Wu
- Orthopaedics Center, Karamay Central Hospital,Karamay, Xinjiang Uygur Autonomous Region 834000, PR China
| | - Qiang Wang
- Department of Orthopaedics, Shanghai Fifth People's Hospital, Fudan University, Shanghai 200240, PR China
| | - Yi Liao
- Orthopaedics Center, Karamay Central Hospital,Karamay, Xinjiang Uygur Autonomous Region 834000, PR China
| | - Shaobo Wang
- Orthopaedics Center, Karamay Central Hospital,Karamay, Xinjiang Uygur Autonomous Region 834000, PR China.
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Moura MM, Monteiro A, Salgado AJ, Silva NA, Monteiro S. Disrupted autonomic pathways in spinal cord injury: Implications for the immune regulation. Neurobiol Dis 2024; 195:106500. [PMID: 38614275 DOI: 10.1016/j.nbd.2024.106500] [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: 11/21/2023] [Revised: 03/25/2024] [Accepted: 04/04/2024] [Indexed: 04/15/2024] Open
Abstract
Spinal Cord Injury (SCI) disrupts critical autonomic pathways responsible for the regulation of the immune function. Consequently, individuals with SCI often exhibit a spectrum of immune dysfunctions ranging from the development of damaging pro-inflammatory responses to severe immunosuppression. Thus, it is imperative to gain a more comprehensive understanding of the extent and mechanisms through which SCI-induced autonomic dysfunction influences the immune response. In this review, we provide an overview of the anatomical organization and physiology of the autonomic nervous system (ANS), elucidating how SCI impacts its function, with a particular focus on lymphoid organs and immune activity. We highlight recent advances in understanding how intraspinal plasticity that follows SCI may contribute to aberrant autonomic activity in lymphoid organs. Additionally, we discuss how sympathetic mediators released by these neuron terminals affect immune cell function. Finally, we discuss emerging innovative technologies and potential clinical interventions targeting the ANS as a strategy to restore the normal regulation of the immune response in individuals with SCI.
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Affiliation(s)
- Maria M Moura
- Life and Health Sciences Research Institute (ICVS), School of Medicine, University of Minho, 4710-057 Braga, Portugal; ICVS/3B's Associate Lab, PT Government Associated Lab, 4710-057 Braga, Guimarães, Portugal
| | - Andreia Monteiro
- Life and Health Sciences Research Institute (ICVS), School of Medicine, University of Minho, 4710-057 Braga, Portugal; ICVS/3B's Associate Lab, PT Government Associated Lab, 4710-057 Braga, Guimarães, Portugal
| | - António J Salgado
- Life and Health Sciences Research Institute (ICVS), School of Medicine, University of Minho, 4710-057 Braga, Portugal; ICVS/3B's Associate Lab, PT Government Associated Lab, 4710-057 Braga, Guimarães, Portugal
| | - Nuno A Silva
- Life and Health Sciences Research Institute (ICVS), School of Medicine, University of Minho, 4710-057 Braga, Portugal; ICVS/3B's Associate Lab, PT Government Associated Lab, 4710-057 Braga, Guimarães, Portugal
| | - Susana Monteiro
- Life and Health Sciences Research Institute (ICVS), School of Medicine, University of Minho, 4710-057 Braga, Portugal; ICVS/3B's Associate Lab, PT Government Associated Lab, 4710-057 Braga, Guimarães, Portugal.
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Podell JE, Morris NA. Traumatic Brain Injury and Traumatic Spinal Cord Injury. Continuum (Minneap Minn) 2024; 30:721-756. [PMID: 38830069 DOI: 10.1212/con.0000000000001423] [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: 06/05/2024]
Abstract
OBJECTIVE This article reviews the mechanisms of primary traumatic injury to the brain and spinal cord, with an emphasis on grading severity, identifying surgical indications, anticipating complications, and managing secondary injury. LATEST DEVELOPMENTS Serum biomarkers have emerged for clinical decision making and prognosis after traumatic injury. Cortical spreading depolarization has been identified as a potentially modifiable mechanism of secondary injury after traumatic brain injury. Innovative methods to detect covert consciousness may inform prognosis and enrich future studies of coma recovery. The time-sensitive nature of spinal decompression is being elucidated. ESSENTIAL POINTS Proven management strategies for patients with severe neurotrauma in the intensive care unit include surgical decompression when appropriate, the optimization of perfusion, and the anticipation and treatment of complications. Despite validated models, predicting outcomes after traumatic brain injury remains challenging, requiring prognostic humility and a model of shared decision making with surrogate decision makers to establish care goals. Penetrating injuries, especially gunshot wounds, are often devastating and require public health and policy approaches that target prevention.
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Ma H, Liu S, Zhong H, Zhou M, Xing C, Li Y, Zhang Q, Guo J, Ning G. Exploring the Landscape of Hydrogel Therapy for Spinal Cord Injury: A Bibliometric and Visual Analysis (1991-2023). World Neurosurg 2024; 186:e95-e105. [PMID: 38508381 DOI: 10.1016/j.wneu.2024.03.048] [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: 01/15/2024] [Revised: 03/09/2024] [Accepted: 03/11/2024] [Indexed: 03/22/2024]
Abstract
BACKGROUND This study aimed to conduct a bibliometric analysis of the literature on hydrogel therapy for spinal cord injury to visualize the research status, identify hotspots, and explore the development trends in this field. METHODS Web of science Core Collection database was searched for relevant studies published between January 1991 and December 2023. Data such as journal title, author information, institutional affiliation, country, citation, and keywords were extracted. Bibliometrix, CiteSpace, and VOSviewer were used to perform bibliometric analysis of the retrieved data. RESULTS A total of 1099 articles pertaining to hydrogel therapy for spinal cord injury were retrieved, revealing an upward trajectory in both annual publication volume and cumulative publication volume. Biomaterials emerged as the journal with the highest number of publications and the most rapid cumulative publication growth, contributing 84 articles. Among authors, Shoichet MS stood out with the highest number of publications and citations, totaling 66 articles. The University of Toronto led in institutional contributions with 65 publications, while China dominated in country-specific publications, accounting for 374 articles. However, to foster significant academic achievements, it is imperative for diverse authors, institutions, and countries to enhance collaboration. Current research in this field concentrates on scaffold architecture, nerve growth factor, the fibrotic microenvironment, and guidance channels. Simultaneously, upcoming research directions prioritize 3D bioprinting, injectable hydrogel, inflammation, and nanoparticles within the realm of hydrogel therapy for spinal cord injuries. CONCLUSIONS In summary, this study provided a comprehensive analysis of the current research status and frontiers of hydrogel therapy for spinal cord injury. The findings provide a foundation for future research and clinical translation efforts of hydrogel therapy in this field.
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Affiliation(s)
- Hongpeng Ma
- Department of Orthopedics, Tianjin Medical University General Hospital, Tianjin, China; International Science and Technology Cooperation Base of Spinal Cord Injury, Tianjin Medical University General Hospital, Tianjin, China; Tianjin Key Laboratory of Spine and Spinal Cord Injury, Tianjin Medical University General Hospital, Tianjin, China
| | - Song Liu
- Department of Orthopedics, Tianjin Medical University General Hospital, Tianjin, China; International Science and Technology Cooperation Base of Spinal Cord Injury, Tianjin Medical University General Hospital, Tianjin, China; Tianjin Key Laboratory of Spine and Spinal Cord Injury, Tianjin Medical University General Hospital, Tianjin, China
| | - Hao Zhong
- Department of Orthopedics, Tianjin Medical University General Hospital, Tianjin, China; International Science and Technology Cooperation Base of Spinal Cord Injury, Tianjin Medical University General Hospital, Tianjin, China; Tianjin Key Laboratory of Spine and Spinal Cord Injury, Tianjin Medical University General Hospital, Tianjin, China
| | - Mi Zhou
- Department of Orthopedics, Tianjin Medical University General Hospital, Tianjin, China; International Science and Technology Cooperation Base of Spinal Cord Injury, Tianjin Medical University General Hospital, Tianjin, China; Tianjin Key Laboratory of Spine and Spinal Cord Injury, Tianjin Medical University General Hospital, Tianjin, China
| | - Cong Xing
- Department of Orthopedics, Tianjin Medical University General Hospital, Tianjin, China; International Science and Technology Cooperation Base of Spinal Cord Injury, Tianjin Medical University General Hospital, Tianjin, China; Tianjin Key Laboratory of Spine and Spinal Cord Injury, Tianjin Medical University General Hospital, Tianjin, China
| | - Yan Li
- Department of Orthopedics, Tianjin Medical University General Hospital, Tianjin, China; International Science and Technology Cooperation Base of Spinal Cord Injury, Tianjin Medical University General Hospital, Tianjin, China; Tianjin Key Laboratory of Spine and Spinal Cord Injury, Tianjin Medical University General Hospital, Tianjin, China
| | - Qi Zhang
- Department of Orthopedics, Tianjin Medical University General Hospital, Tianjin, China; International Science and Technology Cooperation Base of Spinal Cord Injury, Tianjin Medical University General Hospital, Tianjin, China; Tianjin Key Laboratory of Spine and Spinal Cord Injury, Tianjin Medical University General Hospital, Tianjin, China
| | - Junrui Guo
- Department of Orthopedics, Tianjin Medical University General Hospital, Tianjin, China; International Science and Technology Cooperation Base of Spinal Cord Injury, Tianjin Medical University General Hospital, Tianjin, China; Tianjin Key Laboratory of Spine and Spinal Cord Injury, Tianjin Medical University General Hospital, Tianjin, China
| | - Guangzhi Ning
- Department of Orthopedics, Tianjin Medical University General Hospital, Tianjin, China; International Science and Technology Cooperation Base of Spinal Cord Injury, Tianjin Medical University General Hospital, Tianjin, China; Tianjin Key Laboratory of Spine and Spinal Cord Injury, Tianjin Medical University General Hospital, Tianjin, China.
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Deng B, He X, Wang Z, Kang J, Zhang G, Li L, Kang X. HSP70 protects PC12 cells against TBHP-induced apoptosis and oxidative stress by activating the Nrf2/HO-1 signaling pathway. In Vitro Cell Dev Biol Anim 2024:10.1007/s11626-024-00924-0. [PMID: 38807023 DOI: 10.1007/s11626-024-00924-0] [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: 01/24/2024] [Accepted: 05/13/2024] [Indexed: 05/30/2024]
Abstract
HSP70 exhibits neuroprotective, antioxidant, and anti-apoptotic properties, which are crucial in preventing spinal cord injury (SCI) induced by oxidative stress and apoptosis. In this study, we assessed the potential protective effects and underlying mechanisms of HSP70 on tert-butyl hydroperoxide (TBHP)-damaged PC12 cells in an in vitro model of SCI. To establish the model, PC12 cells were subjected to oxidative damage induced by TBHP, followed by overexpression of HSP70. Cell viability was assessed using the CCK8 kit, intracellular reactive oxygen species level was evaluated using a commercial kit, cell apoptosis was detected using the Annexin V-APC/7-ADD Apoptosis Detection Kit, and the oxidative stress level was determined using SOD and MDA assay kits. Western blot analysis was used to detect the expression levels of Bax, cleaved caspase-3, and Bcl-2 proteins. Furthermore, immunofluorescence staining and Western bolt were used to detect the expression levels of proteins associated with the Nrf2/HO-1 signaling pathway. We found that HSP70 overexpression reduced apoptosis and oxidative stress in TBHP-induced PC12 cells. Furthermore, it activated the Nrf2/HO-1 signaling pathway. In addition, the Nrf2 inhibitor ML385 attenuated the protective effects of HSP70 on TBHP-induced PC12 cells. In conclusion, HSP70 can partially alleviate TBHP-induced apoptosis and oxidative stress in PC12 cells by promoting the Nrf2/HO-1 signaling pathway.
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Affiliation(s)
- Bo Deng
- Department of Orthopedics, Lanzhou University Second Hospital, Lanzhou, 730000, China
- Key Laboratory of Orthopedics Disease of Gansu Province, Lanzhou University Second Hospital, Lanzhou, 730030, China
| | - Xuegang He
- Department of Orthopedics, Lanzhou University Second Hospital, Lanzhou, 730000, China
- Key Laboratory of Orthopedics Disease of Gansu Province, Lanzhou University Second Hospital, Lanzhou, 730030, China
| | - Zhaoheng Wang
- Department of Orthopedics, Lanzhou University Second Hospital, Lanzhou, 730000, China
- Key Laboratory of Orthopedics Disease of Gansu Province, Lanzhou University Second Hospital, Lanzhou, 730030, China
| | - Jihe Kang
- Department of Orthopedics, Lanzhou University Second Hospital, Lanzhou, 730000, China
- Key Laboratory of Orthopedics Disease of Gansu Province, Lanzhou University Second Hospital, Lanzhou, 730030, China
| | - Guangzhi Zhang
- Department of Orthopedics, Lanzhou University Second Hospital, Lanzhou, 730000, China
- Key Laboratory of Orthopedics Disease of Gansu Province, Lanzhou University Second Hospital, Lanzhou, 730030, China
| | - Lei Li
- Department of Orthopedics, Lanzhou University Second Hospital, Lanzhou, 730000, China
- Key Laboratory of Orthopedics Disease of Gansu Province, Lanzhou University Second Hospital, Lanzhou, 730030, China
| | - Xuewen Kang
- Department of Orthopedics, Lanzhou University Second Hospital, Lanzhou, 730000, China.
- Key Laboratory of Orthopedics Disease of Gansu Province, Lanzhou University Second Hospital, Lanzhou, 730030, China.
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Yuan W, Sun J, Li Q, Zheng R, Guan B, Chen Z, Ding J, Sun Q, Fu R, Wang W, Fan Y, Kang Y, Sun C, Li A, Wu D, Wang D, Qi L, Chen L, Feng S, Zhou H. Protocol for the Chinese Real-World Evidence for Acute Spinal Cord Injury (ChiRES) study: a prospective, observational, multicentre cohort study of acute spinal cord injury. BMJ Open 2024; 14:e080358. [PMID: 38749680 PMCID: PMC11097860 DOI: 10.1136/bmjopen-2023-080358] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/28/2023] [Accepted: 04/30/2024] [Indexed: 05/18/2024] Open
Abstract
INTRODUCTION Spinal cord injury (SCI) is a catastrophic event with devastating physical, social and occupational consequences for patients and their families. The number of patients with acute SCI in China continues to grow rapidly, but there have been no large prospective cohort studies of patients with acute SCI. This proposed study aims to establish a multicentre, extensive sample cohort of clinical data and biological samples of patients in China, which would aid the systematisation and standardisation of clinical research and treatment of acute SCI, thus reducing the heavy burden of acute SCI on patients and society. METHODS AND ANALYSIS The Chinese Real-World Evidence for Acute Spinal Cord Injury (ChiRES) study is an observational, multicentre cohort study of patients with acute SCI admitted to the Qilu Hospital of Shandong University and other participating centres with prospective collection of their clinical data and biological samples. We aim to recruit 2097 patients in this study. Demographics, disease history, emergency intervention information, motor and sensory examinations, surgical information, medication information and rehabilitation evaluation will be recorded. This will facilitate the development of a prediction model for complications and prognosis of patients with acute SCI and an evaluation of the current management of acute SCI. Among these variables, detailed information on surgical treatment will also be used to assess procedures for acute SCI treatment. Outcome measurements, including the International Standard for Neurological Classification of Spinal Cord Injury examinations, the occurrence of complications and death, will be performed repeatedly during follow-up. We will analyse imaging data and blood samples to develop SCI imaging markers and biomarkers. ETHICS AND DISSEMINATION This study protocol has been approved by the Medical Ethics Committee of the Qilu Hospital of Shandong University and all other participating centres. The findings will be disseminated in peer-reviewed journals and academic conferences.
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Affiliation(s)
- Wenjian Yuan
- Department of Orthopaedics, Qilu Hospital of Shandong University, Shandong University Centre for Orthopaedics, Advanced Medical Research Institute, Cheeloo College of Medicine, Shandong University, Jinan, Shandong, China
| | - Jiuxiao Sun
- Department of Orthopaedics, Qilu Hospital of Shandong University, Shandong University Centre for Orthopaedics, Advanced Medical Research Institute, Cheeloo College of Medicine, Shandong University, Jinan, Shandong, China
| | - Qingyang Li
- Department of Orthopaedics, Qilu Hospital of Shandong University, Shandong University Centre for Orthopaedics, Advanced Medical Research Institute, Cheeloo College of Medicine, Shandong University, Jinan, Shandong, China
| | - Ruiyuan Zheng
- Department of Orthopaedics, Qilu Hospital of Shandong University, Shandong University Centre for Orthopaedics, Advanced Medical Research Institute, Cheeloo College of Medicine, Shandong University, Jinan, Shandong, China
| | - Bin Guan
- Department of Orthopaedics, Qilu Hospital of Shandong University, Shandong University Centre for Orthopaedics, Advanced Medical Research Institute, Cheeloo College of Medicine, Shandong University, Jinan, Shandong, China
| | - Zhuo Chen
- Department of Orthopaedics, Qilu Hospital of Shandong University, Shandong University Centre for Orthopaedics, Advanced Medical Research Institute, Cheeloo College of Medicine, Shandong University, Jinan, Shandong, China
| | - Jiaming Ding
- Department of Orthopaedics, Qilu Hospital of Shandong University, Shandong University Centre for Orthopaedics, Advanced Medical Research Institute, Cheeloo College of Medicine, Shandong University, Jinan, Shandong, China
| | - Qingyu Sun
- Department of Orthopaedics, Qilu Hospital of Shandong University, Shandong University Centre for Orthopaedics, Advanced Medical Research Institute, Cheeloo College of Medicine, Shandong University, Jinan, Shandong, China
| | - Runhan Fu
- Department of Orthopaedics, Qilu Hospital of Shandong University, Shandong University Centre for Orthopaedics, Advanced Medical Research Institute, Cheeloo College of Medicine, Shandong University, Jinan, Shandong, China
| | - Wei Wang
- Department of Orthopaedics, Qilu Hospital of Shandong University, Shandong University Centre for Orthopaedics, Advanced Medical Research Institute, Cheeloo College of Medicine, Shandong University, Jinan, Shandong, China
| | - Yuxuan Fan
- Department of Orthopaedics, Tianjin Medical University General Hospital, Tianjin Medical University, International Science and Technology Cooperation Base of Spinal Cord Injury, Tianjin Key Laboratory of Spine and Spinal Cord, Tianjin, China
| | - Yi Kang
- Department of Orthopaedics, Tianjin Medical University General Hospital, Tianjin Medical University, International Science and Technology Cooperation Base of Spinal Cord Injury, Tianjin Key Laboratory of Spine and Spinal Cord, Tianjin, China
| | - Chao Sun
- Department of Orthopaedics, Tianjin Medical University General Hospital, Tianjin Medical University, International Science and Technology Cooperation Base of Spinal Cord Injury, Tianjin Key Laboratory of Spine and Spinal Cord, Tianjin, China
| | - Ang Li
- Department of Orthopaedics, Henan Provincial People's Hospital, Zhengzhou, Henan, China
| | - Dongjin Wu
- The Second Hospital of Shandong University, Cheeloo College of Medicine, Shandong University, Jinan, Shandong, China
| | - Dachuan Wang
- The Second Hospital of Shandong University, Cheeloo College of Medicine, Shandong University, Jinan, Shandong, China
| | - Lei Qi
- The Second Hospital of Shandong University, Cheeloo College of Medicine, Shandong University, Jinan, Shandong, China
| | - Lingxiao Chen
- Department of Orthopaedics, Qilu Hospital of Shandong University, Shandong University Centre for Orthopaedics, Advanced Medical Research Institute, Cheeloo College of Medicine, Shandong University, Jinan, Shandong, China
- Department of Biostatistics, School of Public Health, Cheeloo College of Medicine, Shandong University, Jinan, Shandong, China
- Sydney Musculoskeletal Health, The Kolling Institute, Faculty of Medicine and Health, University of Sydney, Sydney, NSW, Australia
| | - Shiqing Feng
- Department of Orthopaedics, Qilu Hospital of Shandong University, Shandong University Centre for Orthopaedics, Advanced Medical Research Institute, Cheeloo College of Medicine, Shandong University, Jinan, Shandong, China
- Department of Orthopaedics, Tianjin Medical University General Hospital, Tianjin Medical University, International Science and Technology Cooperation Base of Spinal Cord Injury, Tianjin Key Laboratory of Spine and Spinal Cord, Tianjin, China
- The Second Hospital of Shandong University, Cheeloo College of Medicine, Shandong University, Jinan, Shandong, China
| | - Hengxing Zhou
- Department of Orthopaedics, Qilu Hospital of Shandong University, Shandong University Centre for Orthopaedics, Advanced Medical Research Institute, Cheeloo College of Medicine, Shandong University, Jinan, Shandong, China
- Center for Reproductive Medicine, Shandong University, Jinan, Shandong, China
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Gao Y, Wang Y, Wu Y, Liu S. Biomaterials targeting the microenvironment for spinal cord injury repair: progression and perspectives. Front Cell Neurosci 2024; 18:1362494. [PMID: 38784712 PMCID: PMC11111957 DOI: 10.3389/fncel.2024.1362494] [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: 12/28/2023] [Accepted: 04/17/2024] [Indexed: 05/25/2024] Open
Abstract
Spinal cord injury (SCI) disrupts nerve pathways and affects sensory, motor, and autonomic function. There is currently no effective treatment for SCI. SCI occurs within three temporal periods: acute, subacute, and chronic. In each period there are different alterations in the cells, inflammatory factors, and signaling pathways within the spinal cord. Many biomaterials have been investigated in the treatment of SCI, including hydrogels and fiber scaffolds, and some progress has been made in the treatment of SCI using multiple materials. However, there are limitations when using individual biomaterials in SCI treatment, and these limitations can be significantly improved by combining treatments with stem cells. In order to better understand SCI and to investigate new strategies for its treatment, several combination therapies that include materials combined with cells, drugs, cytokines, etc. are summarized in the current review.
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Affiliation(s)
- Yating Gao
- Department of Neurosurgery, Tianyou Hospital, Wuhan University of Science and Technology, Wuhan, China
| | - Yu Wang
- Department of Neurosurgery, Tianyou Hospital, Wuhan University of Science and Technology, Wuhan, China
- Department of Neurosurgery, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Yaqi Wu
- Department of Neurosurgery, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Shengwen Liu
- Department of Neurosurgery, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
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Cui H, Wang Y, Ma J, Zhou L, Li G, Li Y, Sun Y, Shen J, Ma T, Wang Q, Feng X, Dong B, Yang P, Li Y, Ma X. Advances in exosome modulation of ferroptosis for the treatment of orthopedic diseases. Pathol Res Pract 2024; 257:155312. [PMID: 38663177 DOI: 10.1016/j.prp.2024.155312] [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: 03/09/2024] [Revised: 04/09/2024] [Accepted: 04/15/2024] [Indexed: 05/12/2024]
Abstract
Current treatments for orthopaedic illnesses frequently result in poor prognosis, treatment failure, numerous relapses, and other unpleasant outcomes that have a significant impact on patients' quality of life. Cell-free therapy has emerged as one of the most promising options in recent decades for improving the status quo. As a result, using exosomes produced from various cells to modulate ferroptosis has been proposed as a therapeutic method for the condition. Exosomes are extracellular vesicles that secrete various bioactive chemicals that influence disease treatment and play a role in the genesis and progression of orthopaedic illnesses. Ferroptosis is a recently defined kind of controlled cell death typified by large iron ion buildup and lipid peroxidation. An increasing number of studies indicate that ferroptosis plays a significant role in orthopaedic illnesses. Exosomes, as intercellular information transfer channels, have been found to play a significant role in the regulation of ferroptosis processes. Furthermore, accumulating research suggests that exosomes can influence the course of many diseases by regulating ferroptosis in injured cells. In order to better understand the processes by which exosomes govern ferroptosis in the therapy of orthopaedic illnesses. This review discusses the biogenesis, secretion, and uptake of exosomes, as well as the mechanisms of ferroptosis and exosomes in the therapy of orthopaedic illnesses. It focuses on recent research advances and exosome mechanisms in regulating iron death for the therapy of orthopaedic illnesses. The present state of review conducted both domestically and internationally is elucidated and anticipated as a viable avenue for future therapy in the field of orthopaedics.
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Affiliation(s)
- Hongwei Cui
- Tianjin Medical University Orthopedic Clinical College, Tianjin 300050, China; Tianjin Hospital of Tianjin University (Tianjin Hospital), Tianjin 300211, China; Tianjin Orthopedic Institute, Tianjin 300050, China; Tianjin Key Laboratory of Orthopedic Biomechanics and Medical Engineering, Tianjin 300050, China
| | - Yan Wang
- Tianjin Hospital of Tianjin University (Tianjin Hospital), Tianjin 300211, China; Tianjin Orthopedic Institute, Tianjin 300050, China; Tianjin Key Laboratory of Orthopedic Biomechanics and Medical Engineering, Tianjin 300050, China
| | - Jianxiong Ma
- Tianjin Hospital of Tianjin University (Tianjin Hospital), Tianjin 300211, China; Tianjin Orthopedic Institute, Tianjin 300050, China; Tianjin Key Laboratory of Orthopedic Biomechanics and Medical Engineering, Tianjin 300050, China.
| | - Liyun Zhou
- Tianjin Medical University Orthopedic Clinical College, Tianjin 300050, China; Tianjin Hospital of Tianjin University (Tianjin Hospital), Tianjin 300211, China; Tianjin Orthopedic Institute, Tianjin 300050, China; Tianjin Key Laboratory of Orthopedic Biomechanics and Medical Engineering, Tianjin 300050, China
| | - Guang Li
- Tianjin Hospital of Tianjin University (Tianjin Hospital), Tianjin 300211, China; Tianjin Orthopedic Institute, Tianjin 300050, China; Tianjin Key Laboratory of Orthopedic Biomechanics and Medical Engineering, Tianjin 300050, China
| | - Yiyang Li
- Tianjin Hospital of Tianjin University (Tianjin Hospital), Tianjin 300211, China; Tianjin Orthopedic Institute, Tianjin 300050, China; Tianjin Key Laboratory of Orthopedic Biomechanics and Medical Engineering, Tianjin 300050, China
| | - Yadi Sun
- Tianjin Hospital of Tianjin University (Tianjin Hospital), Tianjin 300211, China; Tianjin Orthopedic Institute, Tianjin 300050, China; Tianjin Key Laboratory of Orthopedic Biomechanics and Medical Engineering, Tianjin 300050, China
| | - Jiahui Shen
- Tianjin Hospital of Tianjin University (Tianjin Hospital), Tianjin 300211, China; Tianjin Orthopedic Institute, Tianjin 300050, China; Tianjin Key Laboratory of Orthopedic Biomechanics and Medical Engineering, Tianjin 300050, China
| | - Tiancheng Ma
- Tianjin Hospital of Tianjin University (Tianjin Hospital), Tianjin 300211, China; Tianjin Orthopedic Institute, Tianjin 300050, China; Tianjin Key Laboratory of Orthopedic Biomechanics and Medical Engineering, Tianjin 300050, China
| | - Qiyu Wang
- Tianjin Hospital of Tianjin University (Tianjin Hospital), Tianjin 300211, China; Tianjin Orthopedic Institute, Tianjin 300050, China; Tianjin Key Laboratory of Orthopedic Biomechanics and Medical Engineering, Tianjin 300050, China
| | - Xiaotian Feng
- Tianjin Hospital of Tianjin University (Tianjin Hospital), Tianjin 300211, China; Tianjin Orthopedic Institute, Tianjin 300050, China; Tianjin Key Laboratory of Orthopedic Biomechanics and Medical Engineering, Tianjin 300050, China
| | - Benchao Dong
- Tianjin Hospital of Tianjin University (Tianjin Hospital), Tianjin 300211, China; Tianjin Orthopedic Institute, Tianjin 300050, China; Tianjin Key Laboratory of Orthopedic Biomechanics and Medical Engineering, Tianjin 300050, China
| | - Peichuan Yang
- Tianjin Hospital of Tianjin University (Tianjin Hospital), Tianjin 300211, China; Tianjin Orthopedic Institute, Tianjin 300050, China; Tianjin Key Laboratory of Orthopedic Biomechanics and Medical Engineering, Tianjin 300050, China
| | - Yan Li
- Tianjin Hospital of Tianjin University (Tianjin Hospital), Tianjin 300211, China; Tianjin Orthopedic Institute, Tianjin 300050, China; Tianjin Key Laboratory of Orthopedic Biomechanics and Medical Engineering, Tianjin 300050, China
| | - Xinlong Ma
- Tianjin Hospital of Tianjin University (Tianjin Hospital), Tianjin 300211, China; Tianjin Orthopedic Institute, Tianjin 300050, China; Tianjin Key Laboratory of Orthopedic Biomechanics and Medical Engineering, Tianjin 300050, China
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Shen T, Zhang W, Wang X, Ren X. Application of"Spinal cord fusion" in spinal cord injury repair and its neurological mechanism. Heliyon 2024; 10:e29422. [PMID: 38638967 PMCID: PMC11024622 DOI: 10.1016/j.heliyon.2024.e29422] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2023] [Revised: 04/03/2024] [Accepted: 04/08/2024] [Indexed: 04/20/2024] Open
Abstract
Spinal cord injury (SCI) is a severely disabling and catastrophic condition that poses significant global clinical challenges. The difficulty of SCI repair results from the distinctive pathophysiological mechanisms, which are characterised by limited regenerative capacity and inadequate neuroplasticity of the spinal cord. Additionally, the formation of cystic cavities and astrocytic scars after SCI further obstructs both the ascending and descending neural conduction pathways. Consequently, the urgent challenge in post-SCI recovery lies in repairing the damaged spinal cord to reconstruct a functional and intact neural conduction circuit. In recent years, significant advancements in biological tissue engineering technology and novel therapies have resulted in a transformative shift in the field of SCI repair. Currently, SCI treatment primarily involves drug therapy, stem cell therapy, the use of biological materials, growth factors, and other approaches. This paper comprehensively reviews the progress in SCI research over the years, with a particular focus on the concept of "Spinal Cord Fusion" as a promising technique for SCI reconstruction. By discussing this important research progress and the neurological mechanisms involved, our aim is to help solve the problem of SCI repair as soon as possible and to bring new breakthroughs in the treatment of paraplegia after SCI.
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Affiliation(s)
- Tingting Shen
- Guangxi University of Chinese Medicine, Nanning, Guangxi, 530001, China
- Department of Orthopedics, Ruikang Hospital Affiliated to Guangxi University of Chinese Medicine, Nanning, Guangxi, 530011, China
- Institute of Orthopedics, Ruikang Hospital Affiliated to Guangxi University of Chinese Medicine, Nanning, Guangxi, 530011, China
- Global Initiative to Cure Paralysis (GICUP Alliance), Columbus, OH, 43221, United States
| | - Weihua Zhang
- Department of Orthopedics, Ruikang Hospital Affiliated to Guangxi University of Chinese Medicine, Nanning, Guangxi, 530011, China
- Institute of Orthopedics, Ruikang Hospital Affiliated to Guangxi University of Chinese Medicine, Nanning, Guangxi, 530011, China
- Global Initiative to Cure Paralysis (GICUP Alliance), Columbus, OH, 43221, United States
| | - Xiaogang Wang
- Guangxi University of Chinese Medicine, Nanning, Guangxi, 530001, China
- Department of Orthopedics, Ruikang Hospital Affiliated to Guangxi University of Chinese Medicine, Nanning, Guangxi, 530011, China
- Institute of Orthopedics, Ruikang Hospital Affiliated to Guangxi University of Chinese Medicine, Nanning, Guangxi, 530011, China
- Global Initiative to Cure Paralysis (GICUP Alliance), Columbus, OH, 43221, United States
| | - Xiaoping Ren
- Department of Orthopedics, Ruikang Hospital Affiliated to Guangxi University of Chinese Medicine, Nanning, Guangxi, 530011, China
- Institute of Orthopedics, Ruikang Hospital Affiliated to Guangxi University of Chinese Medicine, Nanning, Guangxi, 530011, China
- Global Initiative to Cure Paralysis (GICUP Alliance), Columbus, OH, 43221, United States
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Fu J, Li W, Mao T, Chen Z, Lai L, Lin J, Nie Z, Sun Y, Chen Y, Zhang Q, Li X. The potential therapeutic roles of dental pulp stem cells in spinal cord injury. Front Mol Biosci 2024; 11:1363838. [PMID: 38741719 PMCID: PMC11089131 DOI: 10.3389/fmolb.2024.1363838] [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: 12/31/2023] [Accepted: 03/04/2024] [Indexed: 05/16/2024] Open
Abstract
Spinal cord injury (SCI) can lead to serious functional disorders, which have serious impacts on patients and society. The current traditional treatments of SCI are not effective the injured spinal cord is difficult to repair and regenerate. In recent years, stem cell transplantation for the treatment of SCI has been a hot research topic. Dental pulp stem cells have strong abilities of self-renewal and multi-directional differentiation, and have been applied for tissue engineering and regenerative medicine. And dental pulp stem cells have certain advantages in neuro-regenetation, bringing new hope to biotherapy for SCI. This article reviews the characteristics of dental pulp stem cells and their research progress in the treatment of SCI.
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Affiliation(s)
- Jing Fu
- Department of Stomatology, Hangzhou Xixi Hospital Affiliated to Zhejiang Chinese Medical University, Hangzhou, China
| | - Wenjie Li
- Department of Anesthesiology and Surgery, Qingdao Municipal Hospital Group, Qingdao, China
| | - Tengfei Mao
- Yuncheng Central Hospital Affiliated to Shanxi Medical University, Yuncheng, China
| | - Zaipeng Chen
- College of Pharmacy, Guizhou Medical University, Guiyang, China
| | - Lili Lai
- Department of Orthopedics, The First Affiliated Hospital, College of Medicine, Zhejiang University, Hangzhou, China
| | - Jiachen Lin
- Department of Orthopedics, The First Affiliated Hospital, College of Medicine, Zhejiang University, Hangzhou, China
| | - Zhiqiang Nie
- College of Pharmacy, Guizhou Medical University, Guiyang, China
| | - Yunkai Sun
- The Eighth Clinical Medical College of Shanxi Medical University, Yuncheng, China
| | - Yanqin Chen
- College of Pharmacy, Guizhou Medical University, Guiyang, China
| | - Qin Zhang
- Yuncheng Central Hospital Affiliated to Shanxi Medical University, Yuncheng, China
| | - Xigong Li
- Department of Orthopedics, The First Affiliated Hospital, College of Medicine, Zhejiang University, Hangzhou, China
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Pazzin DB, Previato TTR, Budelon Gonçalves JI, Zanirati G, Xavier FAC, da Costa JC, Marinowic DR. Induced Pluripotent Stem Cells and Organoids in Advancing Neuropathology Research and Therapies. Cells 2024; 13:745. [PMID: 38727281 PMCID: PMC11083827 DOI: 10.3390/cells13090745] [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: 01/05/2024] [Revised: 03/19/2024] [Accepted: 03/19/2024] [Indexed: 05/13/2024] Open
Abstract
This review delves into the groundbreaking impact of induced pluripotent stem cells (iPSCs) and three-dimensional organoid models in propelling forward neuropathology research. With a focus on neurodegenerative diseases, neuromotor disorders, and related conditions, iPSCs provide a platform for personalized disease modeling, holding significant potential for regenerative therapy and drug discovery. The adaptability of iPSCs, along with associated methodologies, enables the generation of various types of neural cell differentiations and their integration into three-dimensional organoid models, effectively replicating complex tissue structures in vitro. Key advancements in organoid and iPSC generation protocols, alongside the careful selection of donor cell types, are emphasized as critical steps in harnessing these technologies to mitigate tumorigenic risks and other hurdles. Encouragingly, iPSCs show promising outcomes in regenerative therapies, as evidenced by their successful application in animal models.
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Affiliation(s)
- Douglas Bottega Pazzin
- Brain Institute of Rio Grande do Sul (BraIns), Pontifical Catholic University of Rio Grande do Sul, Porto Alegre 90610-000, Brazil; (D.B.P.); (T.T.R.P.); (J.I.B.G.); (G.Z.); (F.A.C.X.); (J.C.d.C.)
- Graduate Program in Pediatrics and Child Health, School of Medicine, Pontifical Catholic University of Rio Grande do Sul, Porto Alegre 90619-900, Brazil
| | - Thales Thor Ramos Previato
- Brain Institute of Rio Grande do Sul (BraIns), Pontifical Catholic University of Rio Grande do Sul, Porto Alegre 90610-000, Brazil; (D.B.P.); (T.T.R.P.); (J.I.B.G.); (G.Z.); (F.A.C.X.); (J.C.d.C.)
- Graduate Program in Biomedical Gerontology, School of Medicine, Pontifical Catholic University of Rio Grande do Sul, Porto Alegre 90619-900, Brazil
| | - João Ismael Budelon Gonçalves
- Brain Institute of Rio Grande do Sul (BraIns), Pontifical Catholic University of Rio Grande do Sul, Porto Alegre 90610-000, Brazil; (D.B.P.); (T.T.R.P.); (J.I.B.G.); (G.Z.); (F.A.C.X.); (J.C.d.C.)
| | - Gabriele Zanirati
- Brain Institute of Rio Grande do Sul (BraIns), Pontifical Catholic University of Rio Grande do Sul, Porto Alegre 90610-000, Brazil; (D.B.P.); (T.T.R.P.); (J.I.B.G.); (G.Z.); (F.A.C.X.); (J.C.d.C.)
| | - Fernando Antonio Costa Xavier
- Brain Institute of Rio Grande do Sul (BraIns), Pontifical Catholic University of Rio Grande do Sul, Porto Alegre 90610-000, Brazil; (D.B.P.); (T.T.R.P.); (J.I.B.G.); (G.Z.); (F.A.C.X.); (J.C.d.C.)
| | - Jaderson Costa da Costa
- Brain Institute of Rio Grande do Sul (BraIns), Pontifical Catholic University of Rio Grande do Sul, Porto Alegre 90610-000, Brazil; (D.B.P.); (T.T.R.P.); (J.I.B.G.); (G.Z.); (F.A.C.X.); (J.C.d.C.)
| | - Daniel Rodrigo Marinowic
- Brain Institute of Rio Grande do Sul (BraIns), Pontifical Catholic University of Rio Grande do Sul, Porto Alegre 90610-000, Brazil; (D.B.P.); (T.T.R.P.); (J.I.B.G.); (G.Z.); (F.A.C.X.); (J.C.d.C.)
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Saway BF, Courtney J, Barley J, Frankel B, Hofstetter C, Kalhorn S. Contrast enhanced ultrasound for traumatic spinal cord injury: an overview of current and future applications. Spinal Cord Ser Cases 2024; 10:31. [PMID: 38664470 PMCID: PMC11045808 DOI: 10.1038/s41394-024-00644-3] [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: 01/03/2024] [Revised: 04/08/2024] [Accepted: 04/17/2024] [Indexed: 04/28/2024] Open
Abstract
STUDY DESIGN Systematic review. OBJECTIVE Contrast-enhanced ultrasound (CEUS) is an imaging modality that has only recently seen neurosurgical application. CEUS uses inert microbubbles to intraoperatively visualize vasculature and perfusion of the brain and spinal cord in real time. Observation and augmentation of spinal cord perfusion is vital component of the management of traumatic spinal cord injury, yet there are limited imaging modalities to evaluate spinal cord perfusion. CEUS provides an intraoperative imaging tool to evaluate spinal cord perfusion in real time. The objective of this review is to evaluate the current literature on the various applications and benefits of CEUS in traumatic spinal cord injury. SETTING South Carolina, USA. METHODS This review was written according to the PRISMA 2020 guidelines. RESULTS 143 articles were found in our literature search, with 46 of them being unique. After excluding articles for relevance to CEUS and spinal cord injury, we were left with 10 papers. Studies in animal models have shown CEUS to be an effective non-invasive imaging modality that can detect perfusion changes of injured spinal cords in real time. CONCLUSION This imaging modality can provide object perfusion data of the nidus of injury, surrounding penumbra and healthy neural tissue in a traumatized spinal cord. Investigation in its use in humans is ongoing and remains promising to be an effective diagnostic and prognostic tool for those suffering from spinal cord injury.
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Affiliation(s)
- Brian Fabian Saway
- Medical University of South Carolina, Department of Neurosurgery, Charleston, SC, 29425, USA.
| | - James Courtney
- Florida State University College of Medicine, Tallahassee, FL, 32303, USA
| | - Jessica Barley
- Medical University of South Carolina, Department of Neurosurgery, Charleston, SC, 29425, USA
| | - Bruce Frankel
- Southern Illinois University School of Medicine, Department of Neurosurgery, Springfield, IL, 62702, USA
| | | | - Stephen Kalhorn
- Medical University of South Carolina, Department of Neurosurgery, Charleston, SC, 29425, USA
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Gao J, Chen S, Lin S, Mei X. Prussian blue analogues improves the microenvironment after spinal cord injury by regulating Zn. Int Immunopharmacol 2024; 131:111868. [PMID: 38493692 DOI: 10.1016/j.intimp.2024.111868] [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: 11/17/2023] [Revised: 03/04/2024] [Accepted: 03/11/2024] [Indexed: 03/19/2024]
Abstract
Mitochondrial injury, neuronal apoptosis and phenotypic transformation of macrophages are the main mechanisms of spinal cord injury. Based on the Prussian blue nanomase's strong ability to clear free radicals, the treatment of spinal cord injury with nano-zirconium (Pb-Zr) was carried out. The disease treatment strategy based on nanomaterials has excellent therapeutic effect, and Prussian blue analogs have good therapeutic properties, so the application prospects of Prussian blue analogs is broad. From the point of view of Prussian blue content, improving the presence of zirconium in the microenvironment significantly increased the activity of Prussian blue. Prussian Blue zirconium significantly improved lipopolysaccharide (LPS) and interferon (IFN-γ) induced neuronal cell (pc12 cells) and macrophage dysfunction by improving oxidative stress, inflammation, and apoptosis in the microenvironment. It can promote the recovery of motor function after spinal cord injury. In vivo experiments, it shows that Prussian blue zirconium can improve inflammation, apoptosis and oxidative stress of spinal cord tissue, promote regenerative therapy after spinal cord injury, and improve motor function. Moreover, it has been reported that high-priced Zr4+ cations can regulate the deposition and nucleation behavior of Zn2+ in high-performance zinc metal anodes. Therefore, we propose the hypothesis that Pb-Zr modulates Zn2+ be used to promote recovery from spinal cord injury. The results show that nanomaterial is beneficial in the treatment of spinal cord injury. This study provides a good prospect for the application of spinal cord injury treatment. It also provides an important feasibility for subsequent clinical conversions.
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Affiliation(s)
- Jinpeng Gao
- Department of Orthopedic of the Third Affiliated Hospital of Jinzhou Medical University, Jinzhou, Liaoning Province 121000, China; Key Laboratory of Medical Tissue Engineering, Jinzhou Medical University, Jinzhou, Liaoning Province 121000, China
| | - ShuRui Chen
- Department of Orthopedic of the Third Affiliated Hospital of Jinzhou Medical University, Jinzhou, Liaoning Province 121000, China; Key Laboratory of Medical Tissue Engineering, Jinzhou Medical University, Jinzhou, Liaoning Province 121000, China; Guangdong Second Provincial General Hospital, Integrated Chinese and Western Medicine Postdoctoral Research, Station School of Medicine, Jinan Guangzhou, Guangdong Province 510515, China
| | - Sen Lin
- Department of Orthopedic of the Third Affiliated Hospital of Jinzhou Medical University, Jinzhou, Liaoning Province 121000, China; Key Laboratory of Medical Tissue Engineering, Jinzhou Medical University, Jinzhou, Liaoning Province 121000, China.
| | - Xifan Mei
- Department of Orthopedic of the Third Affiliated Hospital of Jinzhou Medical University, Jinzhou, Liaoning Province 121000, China; Key Laboratory of Medical Tissue Engineering, Jinzhou Medical University, Jinzhou, Liaoning Province 121000, China.
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Chen S, Gao J, Lin S, Zhao H. Enhancing anti-neuroinflammation effect of X-ray-triggered RuFe-based metal-organic framework with dual enzyme-like activities. Front Bioeng Biotechnol 2024; 12:1269262. [PMID: 38707498 PMCID: PMC11066228 DOI: 10.3389/fbioe.2024.1269262] [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: 07/29/2023] [Accepted: 04/09/2024] [Indexed: 05/07/2024] Open
Abstract
Traumatic spinal cord injury (SCI), often resulting from external physical trauma, initiates a series of complex pathophysiological cascades, with severe cases leading to paralysis and presenting significant clinical challenges. Traditional diagnostic and therapeutic approaches, particularly X-ray imaging, are prevalent in clinical practice, yet the limited efficacy and notable side effects of pharmacological treatments at the injury site continue to pose substantial hurdles. Addressing these challenges, recent advancements have been made in the development of multifunctional nanotechnology and synergistic therapies, enhancing both the efficacy and safety of radiographic techniques. In this context, we have developed an innovative nerve regeneration and neuroprotection nanoplatform utilizing an X-ray-triggered, on-demand RuFe metal-organic framework (P-RuFe) for SCI recovery. This platform is designed to simulate the enzymatic activities of catalase and superoxide dismutase, effectively reducing the production of reactive oxygen species, and to remove free radicals and reactive nitrogen species, thereby protecting cells from oxidative stress-induced damage. In vivo studies have shown that the combination of P-RuFe and X-ray treatment significantly reduces mortality in SCI mouse models and promotes spinal cord repair by inhibiting glial cell proliferation and neuroinflammation. P-RuFe demonstrates excellent potential as a safe, effective scavenger of reactive oxygen and nitrogen species, offering good stability, biocompatibility, and high catalytic activity, and thus holds promise for the treatment of inflammation-related diseases.
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Affiliation(s)
- Shurui Chen
- Clinical Research Center, Third Affiliated Hospital of Jinzhou Medical University, Jinzhou, China
| | - Jinpeng Gao
- Department of Orthopedic, Third Affiliated Hospital of Jinzhou Medical University, Jinzhou, China
| | - Sen Lin
- Clinical Research Center, Third Affiliated Hospital of Jinzhou Medical University, Jinzhou, China
- Department of Orthopedic, Third Affiliated Hospital of Jinzhou Medical University, Jinzhou, China
| | - Haosen Zhao
- Department of Orthopedic, Third Affiliated Hospital of Jinzhou Medical University, Jinzhou, China
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Scott MM, Patel DV, Lucasti C, Vallee EK, Clark LD, Kowalski JM. Hospital Course and Complications of Subaxial Cervical Trauma Patients With Tetraplegia or Paraplegia: A Case Series and Literature Review. Clin Spine Surg 2024; 37:E152-E157. [PMID: 38158604 DOI: 10.1097/bsd.0000000000001571] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/01/2022] [Accepted: 12/06/2023] [Indexed: 01/03/2024]
Abstract
STUDY DESIGN A single-institution, retrospective cohort study. OBJECTIVE The objective was to present demographic characteristics, mechanism of injuries, lengths of stay, intensive care unit (ICU) days, discharge locations, and causes of 90-day readmission for patients with subaxial spinal cord injuries resulting in paraplegia or tetraplegia. SUMMARY OF BACKGROUND DATA Spinal cord injuries resulting in paraplegia or tetraplegia are rare injuries with debilitating outcomes. Numerous advances have occurred in caring for these patients, but patients still experience multiple complications. The severity of these injuries and numerous complications result in prolonged hospital stays and the need for extensive rehabilitation. METHODS Twelve patients with subaxial spinal cord injury resulting in paraplegia or tetraplegia from a level 1 adult trauma center were reviewed. The primary outcomes included hospital length of stay, ICU days, intrahospital complications, 90-day readmission rates, and discharge location. We reviewed the literature for these outcomes in spinal cord injuries. RESULTS For patients with subaxial spinal cord injuries resulting in paraplegia and tetraplegia, the average age was 36.0 years, and most were male [91.7% (11/12)]. The most common mechanism of injury was gunshot wounds[41.7% (5/12)]. Patients spent an average of 46.3 days in the hospital and 30.7 days in the ICU. Respiratory complications were the most common (9 patients). Fifty percent of patients (6/12) were discharged to the inpatient spinal cord rehab center, and 16.7% (2/12) expired while in the hospital. Two patients (20.0%) were readmitted within 90 days of discharge. CONCLUSIONS Most patients with subaxial spinal cord injuries resulting in paraplegia or tetraplegia were young males with high-energy traumas. Many patients had intrahospital complications, and most were discharged to the hospital spinal rehab center. These findings likely stem from the severity of paraplegia and tetraplegia injuries and the need for rehabilitation.
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Affiliation(s)
| | - Dil V Patel
- UBMD Orthopaedics and Sports Medicine Doctors, Buffalo, NY
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Wang B, Xu L, Zheng P, Zhang Y, Liu W, Wang Y, Zhang Z. Development and validation of a nomogram for predicting the prognosis in children with spinal cord injuries. EUROPEAN SPINE JOURNAL : OFFICIAL PUBLICATION OF THE EUROPEAN SPINE SOCIETY, THE EUROPEAN SPINAL DEFORMITY SOCIETY, AND THE EUROPEAN SECTION OF THE CERVICAL SPINE RESEARCH SOCIETY 2024:10.1007/s00586-024-08208-7. [PMID: 38509262 DOI: 10.1007/s00586-024-08208-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/26/2023] [Revised: 02/04/2024] [Accepted: 02/25/2024] [Indexed: 03/22/2024]
Abstract
AIMS This research aims to construct and verify an accurate nomogram for forecasting the 3-, 5-, and 7-year outcomes in pediatric patients afflicted with spinal cord injury (SCI). METHODS Pediatric patients with SCI from multiple hospitals in China, diagnosed between Jan 2005 and Jan 2020, were incorporated into this research. Half of these patients were arbitrarily chosen for training sets, and the other half were designated for external validation sets. The Cox hazard model was employed to pinpoint potential prognosis determinants related to the American Spinal Injury Association (ASIA) and Functional Independence Assessment (FIM) index. These determinants were then employed to formulate the prognostic nomogram. Subsequently, the bootstrap technique was applied to validate the derived model internally. RESULTS In total, 224 children with SCI were considered for the final evaluation, having a median monitoring duration of 68.0 months. The predictive nomogram showcased superior differentiation capabilities, yielding a refined C-index of 0.924 (95% CI: 0.883-0.965) for the training cohort and a C-index of 0.863 (95% CI: 0.735-0.933) for the external verification group. Additionally, when applying the aforementioned model to prognostic predictions as classified by the FIM, it demonstrated a high predictive value with a C-index of 0.908 (95% CI: 0.863-0.953). Moreover, the calibration diagrams indicated a consistent match between the projected and genuine ASIA outcomes across both sets. CONCLUSION The crafted and verified prognostic nomogram emerges as a dependable instrument to foresee the 3-, 5-, and 7-year ASIA and FIM outcomes for children suffering from SCI.
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Affiliation(s)
- Bo Wang
- Department of Orthopaedic Surgery, Children's Hospital of Nanjing Medical University, Nanjing, China
| | - Liukun Xu
- Department of Orthopaedic Surgery, Children's Hospital of Nanjing Medical University, Nanjing, China
| | - Pengfei Zheng
- Department of Orthopaedic Surgery, Children's Hospital of Nanjing Medical University, Nanjing, China
| | - Yapeng Zhang
- Anhui Province Children's Hospital, Hefei City, 230051, Anhui Province, China
| | - Wangmi Liu
- The Second Affiliated Hospital of Zhejiang University School of Medicine, Hangzhou City, 310009, Zhejiang Province, China
| | - Yuntao Wang
- Zhongda Hospital, Southeast University, Nanjing City, 210000, Jiangsu Province, China
| | - Zhiqun Zhang
- Department of Orthopaedic Surgery, Children's Hospital of Nanjing Medical University, Nanjing, China.
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Zhao H, Fu X, Zhang Y, Chen C, Wang H. The Role of Pyroptosis and Autophagy in the Nervous System. Mol Neurobiol 2024; 61:1271-1281. [PMID: 37697221 PMCID: PMC10896877 DOI: 10.1007/s12035-023-03614-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2023] [Accepted: 08/23/2023] [Indexed: 09/13/2023]
Abstract
Autophagy is a conservative self-degradation system, which includes the two major processes of enveloping abnormal proteins, organelles and other macromolecules, and transferring them into lysosomes for the subsequent degradation. It holds the stability of the intracellular environment under stress. So far, three types of autophagy have been found: microautophagy, chaperone-mediated autophagy and macroautophagy. Many diseases have the pathological process of autophagy dysfunction, such as nervous system diseases. Pyroptosis is one kind of programmed cell death mediated by gasdermin (GSDM). In this process of pyroptosis, the activated caspase-3, caspase-4/5/11, or caspase-1 cleaves GSDM into the N-terminal pore-forming domain (PFD). The oligomer of PFD combines with the cell membrane to form membrane holes, thus leading to pyroptosis. Pyroptosis plays a key role in multiple tissues and organs. Many studies have revealed that autophagy and pyroptosis participate in the nervous system, but the mechanisms need to be fully clarified. Here, we focused on the recent articles on the role and mechanism of pyroptosis and autophagy in the pathological processes of the nervous system.
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Affiliation(s)
- Huijie Zhao
- Institute of Chronic Disease Risks Assessment, Henan University, Jinming Avenue, Kaifeng, 475004, China
| | - Xiaodi Fu
- School of Basic Medical Sciences, Henan University, Kaifeng, 475004, Henan, China
| | - Yanting Zhang
- School of Clinical Medicine, Henan University, Kaifeng, 475004, Henan, China
| | - Chaoran Chen
- Institute of Nursing and Health, School of Nursing and Health, Henan University, Jinming Avenue, Kaifeng, 475004, China
| | - Honggang Wang
- School of Basic Medical Sciences, Henan University, Kaifeng, 475004, Henan, China.
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Li Y, Zhang C, Li Z, Bai F, Jing Y, Ke H, Zhang S, Yan Y, Yu Y. Nicotinamide Riboside Regulates Chemotaxis to Decrease Inflammation and Ameliorate Functional Recovery Following Spinal Cord Injury in Mice. Curr Issues Mol Biol 2024; 46:1291-1307. [PMID: 38392200 PMCID: PMC10887503 DOI: 10.3390/cimb46020082] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/03/2024] [Revised: 01/22/2024] [Accepted: 01/25/2024] [Indexed: 02/24/2024] Open
Abstract
Changes in intracellular nicotinamide adenine dinucleotide (NAD+) levels have been observed in various disease states. A decrease in NAD+ levels has been noted following spinal cord injury (SCI). Nicotinamide riboside (NR) serves as the precursor of NAD+. Previous research has demonstrated the anti-inflammatory and apoptosis-reducing effects of NR supplements. However, it remains unclear whether NR exerts a similar role in mice after SCI. The objective of this study was to investigate the impact of NR on these changes in a mouse model of SCI. Four groups were considered: (1) non-SCI without NR (Sham), (2) non-SCI with NR (Sham +NR), (3) SCI without NR (SCI), and (4) SCI with NR (SCI + NR). Female C57BL/6J mice aged 6-8 weeks were intraperitoneally administered with 500 mg/kg/day NR for a duration of one week. The supplementation of NR resulted in a significant elevation of NAD+ levels in the spinal cord tissue of mice after SCI. In comparison to the SCI group, NR supplementation exhibited regulatory effects on the chemotaxis/recruitment of leukocytes, leading to reduced levels of inflammatory factors such as IL-1β, TNF-α, and IL-22 in the injured area. Moreover, NR supplementation notably enhanced the survival of neurons and synapses within the injured area, ultimately resulting in improved motor functions after SCI. Therefore, our research findings demonstrated that NR supplementation had inhibitory effects on leukocyte chemotaxis, anti-inflammatory effects, and could significantly improve the immune micro-environment after SCI, thereby promoting neuronal survival and ultimately enhancing the recovery of motor functions after SCI. NR supplementation showed promise as a potential clinical treatment strategy for SCI.
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Affiliation(s)
- Yan Li
- Institute of Rehabilitation Medicine, China Rehabilitation Science Institute, China Rehabilitation Research Center, Beijing Key Laboratory of Neural Injury and Rehabilitation, Beijing 100068, China
- Center of Neural Injury and Repair, Beijing Institute for Brain Disorders, Beijing 100068, China
| | - Chunjia Zhang
- School of Rehabilitation, Capital Medical University, Beijing 100068, China
| | - Zihan Li
- Institute of Rehabilitation Medicine, China Rehabilitation Science Institute, China Rehabilitation Research Center, Beijing Key Laboratory of Neural Injury and Rehabilitation, Beijing 100068, China
- Center of Neural Injury and Repair, Beijing Institute for Brain Disorders, Beijing 100068, China
| | - Fan Bai
- Institute of Rehabilitation Medicine, China Rehabilitation Science Institute, China Rehabilitation Research Center, Beijing Key Laboratory of Neural Injury and Rehabilitation, Beijing 100068, China
- Center of Neural Injury and Repair, Beijing Institute for Brain Disorders, Beijing 100068, China
| | - Yingli Jing
- Institute of Rehabilitation Medicine, China Rehabilitation Science Institute, China Rehabilitation Research Center, Beijing Key Laboratory of Neural Injury and Rehabilitation, Beijing 100068, China
- Center of Neural Injury and Repair, Beijing Institute for Brain Disorders, Beijing 100068, China
| | - Han Ke
- School of Rehabilitation, Capital Medical University, Beijing 100068, China
| | - Shuangyue Zhang
- Institute of Rehabilitation Medicine, China Rehabilitation Science Institute, China Rehabilitation Research Center, Beijing Key Laboratory of Neural Injury and Rehabilitation, Beijing 100068, China
- Center of Neural Injury and Repair, Beijing Institute for Brain Disorders, Beijing 100068, China
| | - Yitong Yan
- Institute of Rehabilitation Medicine, China Rehabilitation Science Institute, China Rehabilitation Research Center, Beijing Key Laboratory of Neural Injury and Rehabilitation, Beijing 100068, China
- Center of Neural Injury and Repair, Beijing Institute for Brain Disorders, Beijing 100068, China
| | - Yan Yu
- Institute of Rehabilitation Medicine, China Rehabilitation Science Institute, China Rehabilitation Research Center, Beijing Key Laboratory of Neural Injury and Rehabilitation, Beijing 100068, China
- Center of Neural Injury and Repair, Beijing Institute for Brain Disorders, Beijing 100068, China
- School of Rehabilitation, Capital Medical University, Beijing 100068, China
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Zhou G, Han S, Li Z, Li Y, Gao J. Comprehensive and Visualized Analysis of Interventional Clinical Trials of Spinal Cord Injury in the Past Two Decades: A Bibliometric Study. World Neurosurg 2024; 182:e546-e558. [PMID: 38052362 DOI: 10.1016/j.wneu.2023.11.144] [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: 10/15/2023] [Accepted: 11/29/2023] [Indexed: 12/07/2023]
Abstract
OBJECTIVE The aim of this study was to provide a bibliometric analysis of reported clinical trials of interventional spinal cord injury (SCI) and present the current status, global trends, and scholars' knowledge in this field. METHODS Data were obtained from PubMed and Web of Science (WOS) Core Collection. A literature screening process was conducted to select reports of interventional SCI clinical trials. Qualitative and quantitative analysis was performed based on information from the WOS database. Co-occurrence analysis of keywords, collaboration analysis, and co-citation analysis were performed using VOSviewer. RESULTS A total of 849 articles were selected for analysis. Therapeutic strategies in the articles were classified into 10 subgroups. Locomotor training, local complication-related treatments, and neuromodulation are the top 3 subgroups. Spinal Cord was the most productive and most frequently cited journal in SCI clinical trials. The most productive country, institution, and author are the United States, the University of Miami, and Harvey LA, respectively. The collaboration network analysis shows that researchers and institutions from the United States, Canada, the United Kingdom, and Australia were the pivotal driving forces in this field. Spinal cord injury, rehabilitation, individuals, electrical stimulation, and exercise are the top 5 most frequent keywords. The co-citation analysis shows that the most frequently cited references are all international standards and guidelines of SCI clinical trials. CONCLUSIONS There is a broad research collaboration network, although it is distributed unevenly worldwide. International standards and guidelines are needed to conduct high-quality clinical trials in the future.
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Affiliation(s)
- Gang Zhou
- Department of Neurosurgery, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, China
| | - Shiyuan Han
- Department of Neurosurgery, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, China
| | - Zhimin Li
- Department of Neurosurgery, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, China
| | - Yongning Li
- Department of Neurosurgery, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, China; Department of International Medical Service, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, China
| | - Jun Gao
- Department of Neurosurgery, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, China.
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Karabacak M, Jagtiani P, Margetis K. The Predictive Abilities of Machine Learning Algorithms in Patients with Thoracolumbar Spinal Cord Injuries. World Neurosurg 2024; 182:e67-e90. [PMID: 38030070 DOI: 10.1016/j.wneu.2023.11.043] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2023] [Revised: 11/08/2023] [Accepted: 11/09/2023] [Indexed: 12/01/2023]
Abstract
OBJECTIVES The goal of this study is to implement machine learning (ML) algorithms to predict mortality, non-home discharge, prolonged length of stay (LOS), prolonged length of intensive care unit stay (ICU-LOS), and major complications in patients diagnosed with thoracolumbar spinal cord injury, while creating a publicly accessible online tool. METHODS The American College of Surgeons Trauma Quality Program database was used to identify patients with thoracolumbar spinal cord injury. Feature selection was performed with the Least Absolute Shrinkage and Selection Operator algorithm. Five ML algorithms, including TabPFN, TabNet, XGBoost, LightGBM, and Random Forest, were used along with the Optuna optimization library for hyperparameter tuning. RESULTS A total of 147,819 patients were included in the analysis. For each outcome, we determined the best model for deployment in our web application based on the area under the receiver operating characteristic (AUROC) values. The top performing algorithms were as follows: LightGBM for mortality with an AUROC of 0.885, TabPFN for non-home discharge with an AUROC of 0.801, LightGBM for prolonged LOS with an AUROC of 0.673, Random Forest for prolonged ICU-LOS with an AUROC of 0.664, and LightGBM for major complications with an AUROC of 0.73. CONCLUSIONS ML models demonstrate good predictive ability for in-hospital mortality and non-home discharge, fair predictive ability for major complications and prolonged ICU-LOS, but poor predictive ability for prolonged LOS. We have developed a web application that allows these models to be accessed.
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Affiliation(s)
- Mert Karabacak
- Department of Neurosurgery, Mount Sinai Health System, New York, New York, USA
| | - Pemla Jagtiani
- School of Medicine, SUNY Downstate Health Sciences University, New York, New York, USA
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Yang Q, Zhang H, Jin Z, Zhang B, Wang Y. Effects of Valproic Acid Therapy on Rats with Spinal Cord Injury: A Systematic Review and Meta-Analysis. World Neurosurg 2024; 182:12-28. [PMID: 37923014 DOI: 10.1016/j.wneu.2023.10.135] [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: 10/04/2023] [Revised: 10/27/2023] [Accepted: 10/28/2023] [Indexed: 11/07/2023]
Abstract
OBJECTIVE To systematically evaluate the efficacy of valproic acid (VPA) in rats with spinal cord injury (SCI) to reduce the risk of clinical conversion and provide a valuable reference for future animal and clinical studies. METHODS We searched scientific databases, including PubMed, Ovid-Embase, Web of Science, and Scopus databases. The relevant literature was searched from the establishment date of the database to June 28, 2023. The search results were screened, data were extracted, and the quality of the literature was evaluated independently by 2 reviewers. RESULTS Among 656 nonduplicated references, 14 articles were included for meta-analysis. The summary results showed that the overall Basso, Beattie and Bresnahan scores of the VPA intervention group were significantly higher than those in the control group at 1-6 weeks after VPA intervention. Subgroup analysis showed that the injury model, administration dose, rat strain, country of study, or follow-up duration had no significant effect on the efficacy of VPA on rats with SCI. In addition, mesh analysis showed that high doses of the VPA group had a better effect on SCI rats, compared with the low dose group and the medium dose group. CONCLUSIONS To date, this is the first systematic evaluation of the potential effects of VPA on motor recovery in rats with SCI. We concluded that VPA can promote motor recovery in rats with SCI, and higher doses of VPA seem to be more effective in rats with SCI. However, the limited quality and sample of included studies reduced the application of this meta-analysis. In the future, more high-quality, direct comparative studies are needed to explore this issue in depth.
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Affiliation(s)
- Qinglin Yang
- The First Clinical Medical College of Lanzhou University, Lanzhou, China
| | - Huaibin Zhang
- The First Clinical Medical College of Lanzhou University, Lanzhou, China
| | - Zhuanmei Jin
- The First Clinical Medical College of Lanzhou University, Lanzhou, China
| | - Baolin Zhang
- The First Clinical Medical College of Lanzhou University, Lanzhou, China
| | - Yongping Wang
- The First Clinical Medical College of Lanzhou University, Lanzhou, China; Department of Orthopedics, The First Hospital of Lanzhou University, Lanzhou, China.
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Park CS, Lee JY, Seo KJ, Kim IY, Ju BG, Yune TY. TRPM7 Mediates BSCB Disruption After Spinal Cord Injury by Regulating the mTOR/JMJD3 Axis in Rats. Mol Neurobiol 2024; 61:662-677. [PMID: 37653221 DOI: 10.1007/s12035-023-03617-z] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2023] [Accepted: 08/27/2023] [Indexed: 09/02/2023]
Abstract
After spinal cord injury (SCI), secondary injuries including blood cells infiltration followed by the production of inflammatory mediators are led by blood-spinal cord barrier (BSCB) breakdown. Therefore, preventing BSCB damage could alleviate the secondary injury progresses after SCI. Recently, we reported that transient receptor potential melastatin 7 channel (TRPM7) expression is increased in vascular endothelial cells after injury and thereby mediates BSCB disruption. However, the mechanism by which TRPM7 regulates BSCB disruption has not been examined yet. In current research, we show that TRPM7 mediates BSCB disruption via mammalian target of rapamycin (mTOR) pathway after SCI in rats. After contusion injury at T9 level of spinal cord, mTOR pathway was activated in the endothelial cells of blood vessels and TRPM7 was involved in the activation of mTOR pathway. BSCB disruption, MMP-2/9 activation, and blood cell infiltration after injury were alleviated by rapamycin, a mTOR signaling inhibitor. Rapamycin also conserved the level of tight junction proteins, which were decreased after SCI. Furthermore, mTOR pathway regulated the expression and activation of histone H3K27 demethylase JMJD3, known as a key epigenetic regulator mediating BSCB damage after SCI. In addition, rapamycin inhibited JMJD3 expression, the loss of tight junction molecules, and MMP-2/9 expression in bEnd.3, a brain endothelial cell line, after oxygen-glucose deprivation/reoxygenation. Thus, our results suggest that TRPM7 contributes to the BSCB disruption by regulating JMJD3 expression through the mTOR pathway after SCI.
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Affiliation(s)
- Chan Sol Park
- Age-Related and Brain Diseases Research Center, Kyung Hee University, Seoul, 02447, Republic of Korea
- Department of Biomedical Science, Kyung Hee University, Seoul, 02447, Republic of Korea
| | - Jee Youn Lee
- Age-Related and Brain Diseases Research Center, Kyung Hee University, Seoul, 02447, Republic of Korea
| | - Kyung Jin Seo
- Department of Biomedical Science, Kyung Hee University, Seoul, 02447, Republic of Korea
| | - In Yi Kim
- Department of Biomedical Science, Kyung Hee University, Seoul, 02447, Republic of Korea
| | - Bong Gun Ju
- Department of Life Science, Sogang University, Seoul, 04107, Republic of Korea
| | - Tae Young Yune
- Age-Related and Brain Diseases Research Center, Kyung Hee University, Seoul, 02447, Republic of Korea.
- Department of Biomedical Science, Kyung Hee University, Seoul, 02447, Republic of Korea.
- Department of Biochemistry and Molecular Biology, School of Medicine, Kyung Hee University, Seoul, 02447, Republic of Korea.
- Biomedical Science Institute, Kyung Hee University, Seoul, 02447, Korea.
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Han ZX, Xu T, Wang JS. Occupational therapy combined with repetitive transcranial magnetic stimulation for treatment of spinal cord injury with gastrointestinal dysfunction. Shijie Huaren Xiaohua Zazhi 2024; 32:50-57. [DOI: 10.11569/wcjd.v32.i1.50] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/22/2023] [Revised: 11/18/2023] [Accepted: 12/20/2023] [Indexed: 01/26/2024] Open
Abstract
BACKGROUND In the treatment of spinal cord injury (SCI) with gastrointestinal dysfunction, the recovery of neurological function is not ideal. Occupational therapy combined with repetitive transcranial magnetic stimulation (rTMS) is expected to complement each other, exert their respective advantages, and improve the quality of patients' rehabilitation.
AIM To observe the therapeutic effect of occupational therapy combined with rTMS in patients with SCI accompanied by gastrointestinal dysfunction.
METHODS A total of 150 patients with SCI and gastrointestinal dysfunction who met the selection criteria from June 2020 to March 2023 were randomly divided into two control groups and one observation group, with 50 patients in each group, using the random number table method. The two control groups were treated with either occupational therapy or rTMS alone, and the observation group was treated with occupational therapy combined with rTMS for three courses. The therapeutic effect was observed, as well as neuroelectrophysiology [tibial somatosensory evoked potential (SEP) and motion-evoked potential (MEP)], peripheral blood cytokines [interleukin-1β (IL-1β), interleukin-6 (IL-6), and transforming growth factor-β1 (TGF-β1)], muscle strength scores of key muscles of lower limbs, intestinal function [neurologic bowel dysfunction (NBD), Cleveland Incontinence Score, Wexner Constipation Score, and Bristol stool grading], limb function recovery indicators [Barthel Index (BI), Functional Independence Measurement (FIM) Scale, and Berg Balance Scale (BBS)] before and after treatment.
RESULTS The total effective rate in the observation group was 94.00%, which was higher than that of the occupational therapy group (74.00%) and the rTMS group (80.00%) (P < 0.05). After 1 and 3 treatment courses, the latent levels of SEP and MEP of the tibial nerve in ascending order were the observation group, rTMS group, and occupational therapy group, and the peak levels of SEP and MEP of the tibial nerve in descending order were the observation group, rTMS group, and occupational therapy group (P < 0.05); the serum levels of IL-1β, IL-6, and TGF-β1 in ascending order were the observation group, rTMS group, and occupational therapy group (P < 0.05), and the muscle strength scores of key muscle groups of lower limbs in descending order were the observation group, rTMS group, and occupational therapy group (P < 0.05); the NBD, Cleveland incontinence score, and Wexner constipation score in ascending order were the observation group, rTMS group, and occupational therapy group, while BI, FEM, and BBS scores in ascending order were the observation group, rTMS group, and occupational therapy group (P < 0.05).
CONCLUSION Compared with either rTMS or occupational therapy alone, their combination can reduce immune inflammatory response, improve impaired limb movement and intestinal function in patients with SCI accompanied by gastrointestinal dysfunction, and help them return to their families and society better.
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Affiliation(s)
- Zuo-Xian Han
- Jinhua Hospital of Traditional Chinese Medicine Affiliated to Zhejiang University of Traditional Chinese Medicine, Jinhua 321000, Zhejiang Province, China
| | - Ting Xu
- Jinhua Hospital of Traditional Chinese Medicine Affiliated to Zhejiang University of Traditional Chinese Medicine, Jinhua 321000, Zhejiang Province, China
| | - Jia-Sheng Wang
- Jinhua Hospital of Traditional Chinese Medicine Affiliated to Zhejiang University of Traditional Chinese Medicine, Jinhua 321000, Zhejiang Province, China
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Picetti E, Demetriades AK, Catena F, Aarabi B, Abu-Zidan FM, Alves OL, Ansaloni L, Armonda RA, Badenes R, Bala M, Balogh ZJ, Barbanera A, Bertuccio A, Biffl WL, Bouzat P, Buki A, Castano-Leon AM, Cerasti D, Citerio G, Coccolini F, Coimbra R, Coniglio C, Costa F, De Iure F, Depreitere B, Fainardi E, Fehlings MJ, Gabrovsky N, Godoy DA, Gruen P, Gupta D, Hawryluk GWJ, Helbok R, Hossain I, Hutchinson PJ, Iaccarino C, Inaba K, Ivanov M, Kaprovoy S, Kirkpatrick AW, Klein S, Kolias A, Konovalov NA, Lagares A, Lippa L, Loza-Gomez A, Luoto TM, Maas AIR, Maciejczak A, Maier RV, Marklund N, Martin MJ, Melloni I, Mendoza-Lattes S, Meyfroidt G, Munari M, Napolitano LM, Okonkwo DO, Otomo Y, Papadopoulos MC, Petr O, Peul WC, Pudkrong AK, Qasim Z, Rasulo F, Reizinho C, Ringel F, Rizoli S, Rostami E, Rubiano AM, Russo E, Sarwal A, Schwab JM, Servadei F, Sharma D, Sharif S, Shiban E, Shutter L, Stahel PF, Taccone FS, Terpolilli NA, Thomé C, Toth P, Tsitsopoulos PP, Udy A, Vaccaro AR, Varon AJ, Vavilala MS, Younsi A, Zackova M, Zoerle T, Robba C. Early management of adult traumatic spinal cord injury in patients with polytrauma: a consensus and clinical recommendations jointly developed by the World Society of Emergency Surgery (WSES) & the European Association of Neurosurgical Societies (EANS). World J Emerg Surg 2024; 19:4. [PMID: 38238783 PMCID: PMC10795357 DOI: 10.1186/s13017-023-00525-4] [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: 10/28/2023] [Accepted: 11/25/2023] [Indexed: 01/22/2024] Open
Abstract
BACKGROUND The early management of polytrauma patients with traumatic spinal cord injury (tSCI) is a major challenge. Sparse data is available to provide optimal care in this scenario and worldwide variability in clinical practice has been documented in recent studies. METHODS A multidisciplinary consensus panel of physicians selected for their established clinical and scientific expertise in the acute management of tSCI polytrauma patients with different specializations was established. The World Society of Emergency Surgery (WSES) and the European Association of Neurosurgical Societies (EANS) endorsed the consensus, and a modified Delphi approach was adopted. RESULTS A total of 17 statements were proposed and discussed. A consensus was reached generating 17 recommendations (16 strong and 1 weak). CONCLUSIONS This consensus provides practical recommendations to support a clinician's decision making in the management of tSCI polytrauma patients.
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Affiliation(s)
- Edoardo Picetti
- Department of Anesthesia and Intensive Care, Parma University Hospital, Parma, Italy.
| | - Andreas K Demetriades
- Department of Neurosurgery, Royal Infirmary Edinburgh, Edinburgh, UK
- Leiden University Neurosurgical Centre Holland, HMC-HAGA The Hague & LUMC Leiden, Leiden, The Netherlands
| | - Fausto Catena
- Emergency and Trauma Surgery, Bufalini Hospital, Cesena, Italy
| | - Bizhan Aarabi
- Department of Neurosurgery, University of Maryland, Baltimore, MD, USA
| | - Fikri M Abu-Zidan
- The Research Office, College of Medicine and Health Sciences, United Arab Emirates University, Al-Ain, United Arab Emirates
| | - Oscar L Alves
- Hospital Lusíadas Porto, Centro Hospitalar de Gaia/Espinho, Porto, Portugal
| | - Luca Ansaloni
- Department of Surgery, Pavia University Hospital, Pavia, Italy
| | - Rocco A Armonda
- Department of Neurosurgery, Georgetown University School of Medicine and MedStar Washington Hospital Center, Washington, DC, USA
| | - Rafael Badenes
- Department of Anesthesiology and Surgical-Trauma Intensive Care, Hospital Clínic Universitari de Valencia, University of Valencia, Valencia, Spain
| | - Miklosh Bala
- Department of General Surgery, Hadassah Medical Center and Faculty of Medicine, Hebrew University of Jerusalem, Jerusalem, Israel
| | - Zsolt J Balogh
- Department of Traumatology, John Hunter Hospital, Hunter Medical Research Institute and University of Newcastle, Newcastle, Australia
| | - Andrea Barbanera
- Department of Neurosurgery, SS Antonio e Biagio e Cesare Arrigo Alessandria Hospital, Alessandria, Italy
| | - Alessandro Bertuccio
- Division of Trauma/Acute Care Surgery, Scripps Clinic Medical Group, La Jolla, CA, USA
| | - Walter L Biffl
- Division of Trauma/Acute Care Surgery, Scripps Clinic Medical Group, La Jolla, CA, USA
| | - Pierre Bouzat
- Universite Grenoble Alpes, CHU Grenoble Alpes, Grenoble, France
| | - Andras Buki
- School of Medical Sciences, Örebro University, Örebro, Sweden
| | | | - Davide Cerasti
- Neuroradiology Unit, Parma University Hospital, Parma, Italy
| | - Giuseppe Citerio
- School of Medicine and Surgery, University of Milano-Bicocca, Monza, Italy
- Department of Neuroscience, Fondazione IRCCS San Gerardo Dei Tintori, Monza, Italy
| | - Federico Coccolini
- General, Emergency and Trauma Surgery Department, Pisa University Hospital, Pisa, Italy
| | - Raul Coimbra
- Division of Trauma and Acute Care Surgery, Riverside University Health System Medical Center, Riverside, CA, USA
| | - Carlo Coniglio
- Department of Anesthesia, Intensive Care and Prehospital Emergency, Ospedale Maggiore Carlo Alberto Pizzardi, Bologna, Italy
| | - Francesco Costa
- Department of Neurosurgery, Fondazione IRCCS Istituto Neurologico C. Besta, University of Milan, Milan, Italy
| | - Federico De Iure
- Department of Spine Surgery, Ospedale Maggiore Carlo Alberto Pizzardi, Bologna, Italy
| | - Bart Depreitere
- Department of Neurosurgery, University Hospital KU Leuven, Louvain, Belgium
| | - Enrico Fainardi
- Neuroradiology Unit, Department of Experimental and Clinical Biomedical Sciences, University of Florence, Florence, Italy
| | - Michael J Fehlings
- Division of Neurosurgery, Department of Surgery, University of Toronto, Krembil Research Institute, Toronto Western Hospital, Toronto, ON, Canada
| | - Nikolay Gabrovsky
- Clinic of Neurosurgery, University Hospital Pirogov, Sofia, Bulgaria
| | | | - Peter Gruen
- Department of Neurological Surgery, University of Southern California, Los Angeles, CA, USA
| | - Deepak Gupta
- Department of Neurosurgery, Neurosciences Centre and JPN Apex Trauma Centre, All India Institute of Medical Sciences, New Delhi, India
| | - Gregory W J Hawryluk
- Neurological Institute, Cleveland Clinic, Akron General Hospital, Fairlawn, OH, USA
| | - Raimund Helbok
- Department of Neurology, Johannes Kepler University Linz, Kepler University Hospital, Linz, Austria
- Department of Neurology, Medical University of Innsbruck, Innsbruck, Austria
| | - Iftakher Hossain
- Neurocenter, Department of Neurosurgery, Turku University Hospital, Turku, Finland
- Division of Neurosurgery, Department of Clinical Neurosciences, Addenbrooke's Hospital, University of Cambridge, Cambridge, UK
| | - Peter J Hutchinson
- Division of Neurosurgery, Department of Clinical Neurosciences, Addenbrooke's Hospital, University of Cambridge, Cambridge, UK
| | - Corrado Iaccarino
- Neurosurgery Unit, Department of Biomedical, Metabolic and Neural Sciences, University of Modena and Reggio Emilia, Azienda Ospedaliero-Universitaria di Modena, Modena, Italy
| | - Kenji Inaba
- Division of Acute Care Surgery, Department of Surgery, University of Southern California, Los Angeles, CA, USA
| | - Marcel Ivanov
- Neurosurgery Department, Royal Hallamshire Hospital, Sheffield, UK
| | - Stanislav Kaprovoy
- Department of Spinal and Peripheral Nerve Surgery Burdenko Neurosurgical Center, Moscow, Russia
| | - Andrew W Kirkpatrick
- Departments of Surgery and Critical Care Medicine, Foothills Medical Centre, University of Calgary, Calgary, AB, Canada
| | - Sam Klein
- Department of Neurosurgery, Jessa Hospital, Hasselt, Belgium
- Faculty of Medicine and Life Science, Hasselt University, Hasselt, Belgium
| | - Angelos Kolias
- Division of Neurosurgery, Department of Clinical Neurosciences, Addenbrooke's Hospital, University of Cambridge, Cambridge, UK
- ANAPLASI Rehabilitation Centre, Athens, Greece
- 1St Neurosurgery Department, Henry Dunant Hospital Center, Athens, Greece
| | - Nikolay A Konovalov
- Department of Spinal and Peripheral Nerve Surgery Burdenko Neurosurgical Center, Moscow, Russia
| | - Alfonso Lagares
- Neurosurgery Department, University Hospital "12 de Octubre", Madrid, Spain
| | - Laura Lippa
- Department of Neurosurgery, Ospedale Niguarda, Milan, Italy
| | - Angelica Loza-Gomez
- Department of Emergency Medicine, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, USA
| | - Teemu M Luoto
- Department of Neurosurgery, Tampere University Hospital and Tampere University, Tampere, Finland
| | - Andrew I R Maas
- Department of Neurosurgery, Antwerp University Hospital, Edegem, Belgium
- Department of Translational Neuroscience, Faculty of Medicine and Health Science, University of Antwerp, Antwerp, Belgium
| | - Andrzej Maciejczak
- Department of Neurosurgery, St Luke Hospital, University of Rzeszow, Tarnow, Poland
| | - Ronald V Maier
- Department of Surgery, University of Washington, Seattle, WA, USA
| | - Niklas Marklund
- Department of Clinical Sciences Lund, Neurosurgery, Lund University, Lund, Sweden
- Department of Neurosurgery, Skåne University Hospital, Lund, Sweden
| | | | - Ilaria Melloni
- Division of Neurosurgery, Department of Neurosciences (DINOGMI), IRCCS Ospedale Policlinico San Martino, Genoa, Italy
| | | | - Geert Meyfroidt
- Department and Laboratory of Intensive Care Medicine, University Hospitals Leuven and KU Leuven, Louvain, Belgium
| | - Marina Munari
- Neuro-Intensive Care Unit, University Hospital of Padova, Padua, Italy
| | - Lena M Napolitano
- Department of Surgery, University of Michigan Health System, Ann Arbor, MI, USA
| | - David O Okonkwo
- Department of Neurological Surgery, University of Pittsburgh, Pittsburgh, PA, USA
| | | | | | - Ondra Petr
- Department of Neurosurgery, Medical University Innsbruck, Innsbruck, Austria
| | - Wilco C Peul
- Leiden University Neurosurgical Centre Holland, HMC-HAGA The Hague & LUMC Leiden, Leiden, The Netherlands
| | - Aichholz K Pudkrong
- Department of Anesthesiology and Pain Medicine, University of Washington, Seattle, WA, USA
| | - Zaffer Qasim
- Department of Emergency Medicine, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, USA
| | - Frank Rasulo
- Department of Neuroanesthesia and Neurocritical Care, Spedali Civili University Affiliated Hospital of Brescia, Brescia, Italy
| | - Carla Reizinho
- Departamento de Neurocirurgia, Hospital Egas Moniz, Centro Hospitalar Lisboa Ocidental, Lisbon, Portugal
| | - Florian Ringel
- Department of Neurosurgery, University Hospital Mainz, Mainz, Germany
| | - Sandro Rizoli
- Trauma Surgery Department, Hamad General Hospital, HMC, Doha, Qatar
| | - Elham Rostami
- Section of Neurosurgery, Department of Medical Sciences, Uppsala University, Uppsala, Sweden
| | | | - Emanuele Russo
- Anesthesia and Intensive Care Unit, AUSL Romagna, M.Bufalini Hospital, Cesena, Italy
| | - Aarti Sarwal
- Department of Neurology, Atrium Wake Forest School of Medicine, Winston Salem, NC, USA
| | - Jan M Schwab
- Belford Center for Spinal Cord Injury and Departments of Neurology and Neuroscience, Wexner Medical Center, The Ohio State University, Columbus, OH, USA
| | - Franco Servadei
- Humanitas Research Hospital-IRCCS & Humanitas University, Rozzano, Milan, Italy
| | - Deepak Sharma
- Neuroanesthesia & Perioperative Neuroscience, University of Washington, Seattle, WA, USA
| | - Salman Sharif
- Department of Neurosurgery, Liaquat National Hospital, Karachi, Pakistan
| | - Ehab Shiban
- Department of Neurosurgery, University Hospital Augsburg, Augsburg, Germany
| | - Lori Shutter
- Department of Critical Care Medicine, Neurology and Neurosurgery, University of Pittsburgh School of Medicine, Pittsburgh, PA, USA
| | - Philip F Stahel
- Department of Surgery, Brody School of Medicine, East Carolina University, Greenville, NC, USA
| | - Fabio S Taccone
- Department of Intensive Care, Hopital Universitaire de Bruxelles (HUB), Université Libre de Bruxelles (ULB), Brussels, Belgium
| | - Nicole A Terpolilli
- Department of Neurosurgery, LMU Hospital, Ludwig-Maximilian-University Munich, Munich, Germany
| | - Claudius Thomé
- Department of Neurosurgery, Medical University Innsbruck, Innsbruck, Austria
| | - Peter Toth
- Department of Neurosurgery, Medical School, University of Pecs, Pecs, Hungary
| | - Parmenion P Tsitsopoulos
- Department of Neurosurgery, Hippokration General Hospital, Aristotle University School of Medicine, Thessaloníki, Greece
| | - Andrew Udy
- Department of Intensive Care and Hyperbaric Medicine, The Alfred, Melbourne, VIC, 3004, Australia
| | - Alexander R Vaccaro
- Department of Orthopedic Surgery, Delaware Valley Spinal Cord Injury Center, Rothman Orthopedics, Sidney Kimmel Medical Center of Thomas Jefferson University, Philadelphia, PA, USA
| | - Albert J Varon
- Department of Anesthesiology, Perioperative Medicine, and Pain Management, University of Miami Miller School of Medicine/Ryder Trauma Center, Miami, FL, USA
| | - Monica S Vavilala
- Department of Anesthesiology and Pain Medicine, University of Washington, Seattle, WA, USA
| | - Alexander Younsi
- Department of Neurosurgery, Heidelberg University Hospital, Heidelberg, Germany
| | - Monika Zackova
- Division of Intensive Care and Neurology Unit, Montecatone Rehabilitation Institute, Imola, Italy
| | - Tommaso Zoerle
- Department of Pathophysiology and Transplantation, University of Milan, Department of Anesthesia, Critical Care and Emergency, Fondazione IRCCS Ca' Granda Ospedale Maggiore Policlinico, Milan, Italy
| | - Chiara Robba
- IRCCS Policlinico San Martino, Dipartimento di Scienze Chirurgiche Diagnostiche e Integrate, Università di Genova, Genoa, Italy
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50
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Chen D, Zhou L, Chen G, Lin T, Lin J, Zhao X, Li W, Guo S, Wu R, Wang Z, Liu W. FUNDC1-induced mitophagy protects spinal cord neurons against ischemic injury. Cell Death Discov 2024; 10:4. [PMID: 38177127 PMCID: PMC10766648 DOI: 10.1038/s41420-023-01780-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2023] [Revised: 12/12/2023] [Accepted: 12/14/2023] [Indexed: 01/06/2024] Open
Abstract
Local ischemia and hypoxia are the most important pathological processes in the early phase of secondary spinal cord injury (SCI), in which mitochondria are the main target of ischemic injury. Mitochondrial autophagy, also known as mitophagy, acts as a selective autophagy that specifically identifies and degrades damaged mitochondria, thereby reducing mitochondria-dependent apoptosis. Accumulating evidence shows that the mitophagy receptor, FUN14 domain-containing 1 (FUNDC1), plays an important role in ischemic injury, but the role of FUNDC1 in SCI has not been reported. In this study, we aimed to investigate whether FUNDC1 can enhance mitophagy and inhibit neuronal apoptosis in the early stage of SCI. In a rat SCI model, we found that FUNDC1 overexpression enhanced neuronal autophagy and decreased neuronal apoptosis in the early stage of injury, thereby reducing spinal cord damage. In vitro studies showed that the neuroprotective effects of FUNDC1 were achieved by inhibiting mitochondria-dependent apoptosis and improving mitochondrial function. In addition, FUNDC1 enhanced mitophagy. The protective effects of FUNDC1 against apoptosis and mitochondrial dysfunction were reversed by 3-methyladenine (3-MA), an autophagy inhibitor. Taken together, our results confirm that FUNDC1 can protect against neuronal loss after SCI by inducing mitophagy, inhibiting mitochondria-dependent apoptosis, and improving mitochondrial function.
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Affiliation(s)
- Dehui Chen
- Department of Orthopedics, Fujian Medical University Union Hospital, Fuzhou, 350001, Fujian, China
| | - Linquan Zhou
- Department of Orthopedics, Fujian Medical University Union Hospital, Fuzhou, 350001, Fujian, China
| | - Gang Chen
- Department of Orthopedics, Fujian Medical University Union Hospital, Fuzhou, 350001, Fujian, China
| | - Taotao Lin
- Department of Orthopedics, Fujian Medical University Union Hospital, Fuzhou, 350001, Fujian, China
| | - Jiemin Lin
- School of Health, Fujian Medical University, Fuzhou, 350001, Fujian, China
| | - Xin Zhao
- School of Health, Fujian Medical University, Fuzhou, 350001, Fujian, China
| | - Wenwen Li
- Department of Orthopedics, Fujian Medical University Union Hospital, Fuzhou, 350001, Fujian, China
| | - Shengyu Guo
- Department of Orthopedics, Fujian Medical University Union Hospital, Fuzhou, 350001, Fujian, China
| | - Rongcan Wu
- Department of Orthopedics, Fujian Medical University Union Hospital, Fuzhou, 350001, Fujian, China
| | - Zhenyu Wang
- Department of Orthopedics, Fujian Medical University Union Hospital, Fuzhou, 350001, Fujian, China.
| | - Wenge Liu
- Department of Orthopedics, Fujian Medical University Union Hospital, Fuzhou, 350001, Fujian, China.
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