1
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Tohda C. Pharmacological intervention for chronic phase of spinal cord injury. Neural Regen Res 2025; 20:1377-1389. [PMID: 38934397 DOI: 10.4103/nrr.nrr-d-24-00176] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2024] [Accepted: 05/30/2024] [Indexed: 06/28/2024] Open
Abstract
Spinal cord injury is an intractable traumatic injury. The most common hurdles faced during spinal cord injury are failure of axonal regrowth and reconnection to target sites. These also tend to be the most challenging issues in spinal cord injury. As spinal cord injury progresses to the chronic phase, lost motor and sensory functions are not recovered. Several reasons may be attributed to the failure of recovery from chronic spinal cord injury. These include factors that inhibit axonal growth such as activated astrocytes, chondroitin sulfate proteoglycan, myelin-associated proteins, inflammatory microglia, and fibroblasts that accumulate at lesion sites. Skeletal muscle atrophy due to denervation is another chronic and detrimental spinal cord injury-specific condition. Although several intervention strategies based on multiple outlooks have been attempted for treating spinal cord injury, few approaches have been successful. To treat chronic spinal cord injury, neural cells or tissue substitutes may need to be supplied in the cavity area to enable possible axonal growth. Additionally, stimulating axonal growth activity by extrinsic factors is extremely important and essential for maintaining the remaining host neurons and transplanted neurons. This review focuses on pharmacotherapeutic approaches using small compounds and proteins to enable axonal growth in chronic spinal cord injury. This review presents some of these candidates that have shown promising outcomes in basic research ( in vivo animal studies) and clinical trials: AA-NgR(310)ecto-Fc (AXER-204), fasudil, phosphatase and tensin homolog protein antagonist peptide 4, chondroitinase ABC, intracellular sigma peptide, (-)-epigallocatechin gallate, matrine, acteoside, pyrvate kinase M2, diosgenin, granulocyte-colony stimulating factor, and fampridine-sustained release. Although the current situation suggests that drug-based therapies to recover function in chronic spinal cord injury are limited, potential candidates have been identified through basic research, and these candidates may be subjects of clinical studies in the future. Moreover, cocktail therapy comprising drugs with varied underlying mechanisms may be effective in treating the refractory status of chronic spinal cord injury.
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Affiliation(s)
- Chihiro Tohda
- Section of Neuromedical Science, Institute of Natural Medicine, University of Toyama, Toyama, Japan
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2
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Ding X, Chen C, Zhao H, Dai B, Ye L, Song T, Huang S, Wang J, You T. Inhibiting SHP2 reduces glycolysis, promotes microglial M1 polarization, and alleviates secondary inflammation following spinal cord injury in a mouse model. Neural Regen Res 2025; 20:858-872. [PMID: 38886958 DOI: 10.4103/nrr.nrr-d-23-01925] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/25/2023] [Accepted: 04/17/2024] [Indexed: 06/20/2024] Open
Abstract
JOURNAL/nrgr/04.03/01300535-202503000-00030/figure1/v/2024-06-17T092413Z/r/image-tiff Reducing the secondary inflammatory response, which is partly mediated by microglia, is a key focus in the treatment of spinal cord injury. Src homology 2-containing protein tyrosine phosphatase 2 (SHP2), encoded by PTPN11, is widely expressed in the human body and plays a role in inflammation through various mechanisms. Therefore, SHP2 is considered a potential target for the treatment of inflammation-related diseases. However, its role in secondary inflammation after spinal cord injury remains unclear. In this study, SHP2 was found to be abundantly expressed in microglia at the site of spinal cord injury. Inhibition of SHP2 expression using siRNA and SHP2 inhibitors attenuated the microglial inflammatory response in an in vitro lipopolysaccharide-induced model of inflammation. Notably, after treatment with SHP2 inhibitors, mice with spinal cord injury exhibited significantly improved hind limb locomotor function and reduced residual urine volume in the bladder. Subsequent in vitro experiments showed that, in microglia stimulated with lipopolysaccharide, inhibiting SHP2 expression promoted M2 polarization and inhibited M1 polarization. Finally, a co-culture experiment was conducted to assess the effect of microglia treated with SHP2 inhibitors on neuronal cells. The results demonstrated that inflammatory factors produced by microglia promoted neuronal apoptosis, while inhibiting SHP2 expression mitigated these effects. Collectively, our findings suggest that SHP2 enhances secondary inflammation and neuronal damage subsequent to spinal cord injury by modulating microglial phenotype. Therefore, inhibiting SHP2 alleviates the inflammatory response in mice with spinal cord injury and promotes functional recovery postinjury.
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Affiliation(s)
- Xintian Ding
- Department of Orthopedics, The First Affiliated Hospital of USTC, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, Anhui Province, China
- Department of Orthopedics, Provincial Hospital Affiliated to Anhui Medical University, Hefei, Anhui Province, China
| | - Chun Chen
- Department of Orthopedics, The First Affiliated Hospital of USTC, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, Anhui Province, China
| | - Heng Zhao
- Department of Orthopedics, The First Affiliated Hospital of USTC, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, Anhui Province, China
| | - Bin Dai
- Department of Orthopedics, The First Affiliated Hospital of USTC, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, Anhui Province, China
| | - Lei Ye
- Department of Orthopedics, The First Affiliated Hospital of USTC, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, Anhui Province, China
- Department of Orthopedics, Provincial Hospital Affiliated to Anhui Medical University, Hefei, Anhui Province, China
| | - Tao Song
- Department of Orthopedics, The First Affiliated Hospital of USTC, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, Anhui Province, China
| | - Shuai Huang
- Department of Orthopedics, The First Affiliated Hospital of USTC, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, Anhui Province, China
| | - Jia Wang
- Department of Orthopedics, The First Affiliated Hospital of USTC, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, Anhui Province, China
| | - Tao You
- Department of Orthopedics, The First Affiliated Hospital of USTC, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, Anhui Province, China
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3
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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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4
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Rigo YR, Benvenutti R, Portela LV, Strogulski NR. Neurogenic potential of NG2 in neurotrauma: a systematic review. Neural Regen Res 2024; 19:2673-2683. [PMID: 38595286 PMCID: PMC11168526 DOI: 10.4103/nrr.nrr-d-23-01031] [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: 06/21/2023] [Revised: 12/20/2023] [Accepted: 02/07/2024] [Indexed: 04/11/2024] Open
Abstract
Regenerative approaches towards neuronal loss following traumatic brain or spinal cord injury have long been considered a dogma in neuroscience and remain a cutting-edge area of research. This is reflected in a large disparity between the number of studies investigating primary and secondary injury as therapeutic targets in spinal cord and traumatic brain injuries. Significant advances in biotechnology may have the potential to reshape the current state-of-the-art and bring focus to primary injury neurotrauma research. Recent studies using neural-glial factor/antigen 2 (NG2) cells indicate that they may differentiate into neurons even in the developed brain. As these cells show great potential to play a regenerative role, studies have been conducted to test various manipulations in neurotrauma models aimed at eliciting a neurogenic response from them. In the present study, we systematically reviewed the experimental protocols and findings described in the scientific literature, which were peer-reviewed original research articles (1) describing preclinical experimental studies, (2) investigating NG2 cells, (3) associated with neurogenesis and neurotrauma, and (4) in vitro and/or in vivo, available in PubMed/MEDLINE, Web of Science or SCOPUS, from 1998 to 2022. Here, we have reviewed a total of 1504 papers, and summarized findings that ultimately suggest that NG2 cells possess an inducible neurogenic potential in animal models and in vitro. We also discriminate findings of NG2 neurogenesis promoted by different pharmacological and genetic approaches over functional and biochemical outcomes of traumatic brain injury and spinal cord injury models, and provide mounting evidence for the potential benefits of manipulated NG2 cell ex vivo transplantation in primary injury treatment. These findings indicate the feasibility of NG2 cell neurogenesis strategies and add new players in the development of therapeutic alternatives for neurotrauma.
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Affiliation(s)
- Yuri R. Rigo
- Departamento de Bioquímica, Instituto de Ciências Básicas da Saúde, Universidade Federal do Rio Grande do Sul (UFRGS), Porto Alegre, Brazil
| | - Radharani Benvenutti
- School of Pharmacy and Biomolecular Sciences, RCSI University of Medicine and Health Sciences, Dublin, Ireland
| | - Luis V. Portela
- Departamento de Bioquímica, Instituto de Ciências Básicas da Saúde, Universidade Federal do Rio Grande do Sul (UFRGS), Porto Alegre, Brazil
| | - Nathan R. Strogulski
- School of Biochemistry and Immunology, Trinity Biomedical Sciences Institute, Trinity College Dublin, University of Dublin, Dublin, Ireland
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5
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Liao JX, Huang QM, Pan ZC, Wu J, Zhang WJ. The anti-inflammatory and immunomodulatory effects of olfactory ensheathing cells transplantation in spinal cord injury and concomitant pathological pain. Eur J Pharmacol 2024; 982:176950. [PMID: 39214270 DOI: 10.1016/j.ejphar.2024.176950] [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: 04/26/2024] [Revised: 07/26/2024] [Accepted: 08/27/2024] [Indexed: 09/04/2024]
Abstract
Spinal cord injury (SCI) is a serious and disabling injury that is often accompanied by neuropathic pain (NeP), which severely affects patients' motor and sensory functions and reduces their quality of life. Currently, there is no specific treatment for treating SCI and relieving the accompanying pain, and we can only rely on medication and physical rehabilitation, both of which are ineffective. Researchers have recently identified a novel class of glial cells, olfactory ensheathing cells (OECs), which originate from the olfactory system. Transplantation of OECs into damaged spinal cords has demonstrated their capacity to repair damaged nerves, improve the microenvironment at the point of injury, and They can also restore neural connectivity and alleviate the patient's NeP to a certain extent. Although the effectiveness of OECs transplantation has been confirmed in experiments, the specific mechanisms by which it repairs the spinal cord and relieves pain have not been articulated. Through a review of the literature, it has been established that the ability of OECs to repair and relieve pain is inextricably linked to its anti-inflammatory and immunomodulatory effects. In this regard, it is imperative to gain a deeper understanding of how OECs exert their anti-inflammatory and immunomodulatory effects. The objective of this paper is to provide a comprehensive overview of the mechanisms by which OECs exert anti-inflammatory and immunomodulatory effects. We aim to manipulate the immune microenvironment at the transplantation site through the intervention of cytokines and immune cells, with the goal of enhancing OECs' function or creating a conducive microenvironment for OECs' survival. This approach is expected to improve the therapeutic efficacy of OECs in clinical settings. However, numerous fundamental and clinical challenges remain to be addressed if OEC transplantation therapy is to become a standardized treatment in clinical practice.
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Affiliation(s)
- Jun-Xiang Liao
- The Second Affiliated Hospital, Jiangxi Medical College, Nanchang University, Nanchang City, Jiangxi province, China
| | - Qi-Ming Huang
- The Second Affiliated Hospital, Jiangxi Medical College, Nanchang University, Nanchang City, Jiangxi province, China
| | - Zhi-Cheng Pan
- The Second Affiliated Hospital, Jiangxi Medical College, Nanchang University, Nanchang City, Jiangxi province, China
| | - Jie Wu
- Department of Rehabilitation Medicine, The Second Affiliated Hospital, Jiangxi Medical College, Nanchang University, Nanchang City, Jiangxi province, China
| | - Wen-Jun Zhang
- Department of Rehabilitation Medicine, The Second Affiliated Hospital, Jiangxi Medical College, Nanchang University, Nanchang City, Jiangxi province, China.
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6
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Huang Y, Bai J. Ferroptosis in the neurovascular unit after spinal cord injury. Exp Neurol 2024; 381:114943. [PMID: 39242069 DOI: 10.1016/j.expneurol.2024.114943] [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: 06/10/2024] [Revised: 08/27/2024] [Accepted: 09/01/2024] [Indexed: 09/09/2024]
Abstract
The mechanisms of secondary injury following spinal cord injury are complicated. The role of ferroptosis, which is a newly discovered form of regulated cell death in the neurovascular unit(NVU), is increasingly important. Ferroptosis inhibitors have been shown to improve neurovascular homeostasis and attenuate secondary spinal cord injury(SCI). This review focuses on the mechanisms of ferroptosis in NVU cells and NVU-targeted therapeutic strategies according to the stages of SCI, and analyzes possible future research directions.
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Affiliation(s)
- Yushan Huang
- School of Rehabilitation, Capital Medical University, Beijing, China
| | - Jinzhu Bai
- School of Rehabilitation, Capital Medical University, Beijing, China; Department of Spine and Spinal Cord Surgery, Beijing Boai Hospital, China Rehabilitation Research Center, Beijing, China; Department of Orthopedics, Capital Medical University, Beijing, China.
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7
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Zhang Z, Li Z, Peng Y, Li Z, Xv N, Jin L, Cao Y, Jiang C, Chen Z. TRIM21-mediated ubiquitination of PLIN2 regulates neuronal lipid droplet accumulation after acute spinal cord injury. Exp Neurol 2024; 381:114916. [PMID: 39122166 DOI: 10.1016/j.expneurol.2024.114916] [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: 02/26/2024] [Revised: 07/26/2024] [Accepted: 08/06/2024] [Indexed: 08/12/2024]
Abstract
To investigate the changes in neuronal lipid droplet (LD) accumulation and lipid metabolism after acute spinal cord injury (SCI), we established a rat model of compressive SCI. Oil Red O staining, BODIPY 493/503 staining, and 4-hydroxynonenal immunofluorescence staining were performed to determine overall LD accumulation, neuronal LD accumulation, and lipid peroxidation. Lipidomics was conducted to identify the lipid components in the local SCI microenvironment. We focused on the expression and regulation of perilipin 2 (PLIN2) and knocked down PLIN2 in vivo by intrathecal injection of adeno-associated virus 9-synapsin-short-hairpin RNA-PLIN2 (AAV9-SYN-shPlin2). Motor function was assessed using the Basso-Beattie-Bresnahan score. Proteins that interacted with PLIN2 were screened by immunoprecipitation (IP) and qualitative shotgun proteomics, and confirmed by co-IP. A ubiquitination assay was performed to validate whether ubiquitination was involved in PLIN2 degradation. Oil Red O staining indicated that LDs steadily accumulated after SCI. Fluorescent staining indicated the accumulation of LDs in neurons with increased lipid peroxidation. Lipidomics revealed significant changes in lipid components after SCI. PLIN2 expression significantly increased following SCI, and knockdown of PLIN2 using AAV9-SYN-Plin2 reduced neuronal LD accumulation. This intervention improved the neuronal survival and motor function of injured rats. IP and qualitative shotgun proteomics identified tripartite motif-containing protein 21 (TRIM21) as a direct binding protein of PLIN2, and this interaction was confirmed by co-IP in vitro and immunofluorescence staining in vivo. By manipulating TRIM21 expression, we found it was negatively correlated with PLIN2 expression. In conclusion, PLIN2 is involved in neuronal LD accumulation following SCI. TRIM21 mediated the ubiquitination and degradation of PLIN2 in neurons. Inhibition of PLIN2 enhanced the recovery of motor function after SCI.
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Affiliation(s)
- Zhiyang Zhang
- Department of Orthopaedics, Zhongshan Hospital, Fudan University, Shanghai 200032, China
| | - Zheng Li
- Department of Orthopaedics, the First Affiliated Hospital of University of Science and Technology of China, Hefei 230002, China
| | - Ying Peng
- Trauma center, Shanghai General Hospital, Shanghai 200080, China
| | - Zhuoxuan Li
- Trauma center, Shanghai General Hospital, Shanghai 200080, China
| | - Nixi Xv
- Department of Orthopaedics, Zhongshan Hospital, Fudan University, Shanghai 200032, China
| | - Lixia Jin
- Department of Rehabilitation, Zhongshan Hospital, Fudan University, Shanghai 200032, China
| | - Yuanwu Cao
- Department of Orthopaedics, Zhongshan Hospital, Fudan University, Shanghai 200032, China
| | - Chang Jiang
- Department of Orthopaedics, Zhongshan Hospital, Fudan University, Shanghai 200032, China
| | - Zixian Chen
- Department of Orthopaedics, Zhongshan Hospital, Fudan University, Shanghai 200032, China.
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Liang Z, Yang Z, Xie H, Rao J, Xu X, Lin Y, Wang C, Chen C. Small extracellular vesicles from hypoxia-preconditioned bone marrow mesenchymal stem cells attenuate spinal cord injury via miR-146a-5p-mediated regulation of macrophage polarization. Neural Regen Res 2024; 19:2259-2269. [PMID: 38488560 PMCID: PMC11034578 DOI: 10.4103/1673-5374.391194] [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: 06/02/2023] [Revised: 08/23/2023] [Accepted: 11/18/2023] [Indexed: 04/24/2024] Open
Abstract
JOURNAL/nrgr/04.03/01300535-202410000-00027/figure1/v/2024-02-06T055622Z/r/image-tiff Spinal cord injury is a disabling condition with limited treatment options. Multiple studies have provided evidence suggesting that small extracellular vesicles (SEVs) secreted by bone marrow mesenchymal stem cells (MSCs) help mediate the beneficial effects conferred by MSC transplantation following spinal cord injury. Strikingly, hypoxia-preconditioned bone marrow mesenchymal stem cell-derived SEVs (HSEVs) exhibit increased therapeutic potency. We thus explored the role of HSEVs in macrophage immune regulation after spinal cord injury in rats and their significance in spinal cord repair. SEVs or HSEVs were isolated from bone marrow MSC supernatants by density gradient ultracentrifugation. HSEV administration to rats via tail vein injection after spinal cord injury reduced the lesion area and attenuated spinal cord inflammation. HSEVs regulate macrophage polarization towards the M2 phenotype in vivo and in vitro. MicroRNA sequencing and bioinformatics analyses of SEVs and HSEVs revealed that miR-146a-5p is a potent mediator of macrophage polarization that targets interleukin-1 receptor-associated kinase 1. Reducing miR-146a-5p expression in HSEVs partially attenuated macrophage polarization. Our data suggest that HSEVs attenuate spinal cord inflammation and injury in rats by transporting miR-146a-5p, which alters macrophage polarization. This study provides new insights into the application of HSEVs as a therapeutic tool for spinal cord injury.
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Affiliation(s)
- Zeyan Liang
- Department of Neurosurgery, Fujian Medical University Union Hospital, Fuzhou, Fujian Province, China
- Fujian Neurosurgical Institute, Fuzhou, Fujian Province, China
| | - Zhelun Yang
- Department of Neurosurgery, Fujian Medical University Union Hospital, Fuzhou, Fujian Province, China
- Fujian Neurosurgical Institute, Fuzhou, Fujian Province, China
| | - Haishu Xie
- Department of Neurosurgery, Fujian Medical University Union Hospital, Fuzhou, Fujian Province, China
- Fujian Neurosurgical Institute, Fuzhou, Fujian Province, China
| | - Jian Rao
- Department of Neurosurgery, Fujian Medical University Union Hospital, Fuzhou, Fujian Province, China
- Fujian Neurosurgical Institute, Fuzhou, Fujian Province, China
| | - Xiongjie Xu
- Department of Neurosurgery, Fujian Medical University Union Hospital, Fuzhou, Fujian Province, China
- Fujian Neurosurgical Institute, Fuzhou, Fujian Province, China
| | - Yike Lin
- Department of Neurosurgery, Fujian Medical University Union Hospital, Fuzhou, Fujian Province, China
- Fujian Neurosurgical Institute, Fuzhou, Fujian Province, China
| | - Chunhua Wang
- Department of Neurosurgery, Fujian Medical University Union Hospital, Fuzhou, Fujian Province, China
- Fujian Neurosurgical Institute, Fuzhou, Fujian Province, China
| | - Chunmei Chen
- Department of Neurosurgery, Fujian Medical University Union Hospital, Fuzhou, Fujian Province, China
- Fujian Neurosurgical Institute, Fuzhou, Fujian Province, China
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Dadvand A, Yavari A, Teimourpour A, Farzad-Mohajeri S. Influential factors on stem cell therapy success in canine model of spinal cord Injury: A systematic review and meta-analysis. Brain Res 2024; 1839:148997. [PMID: 38795792 DOI: 10.1016/j.brainres.2024.148997] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2024] [Revised: 05/03/2024] [Accepted: 05/10/2024] [Indexed: 05/28/2024]
Abstract
Spinal cord injury (SCI) is a serious medical condition. The search for an effective cure remains a persistent challenge. Current treatments, unfortunately, are unable to sufficiently improve neurological function, often leading to lifelong disability. This systematic review and meta-analysis evaluated the effectiveness of stem cell therapy for SCI using canine models. It also explored the optimal protocol for implementing stem cell therapy. A comprehensive search of studies was conducted from 2000 to October 2022. This study focused on five outcomes: motor function score, histopathology, IHC, western blot, and SEP. The results demonstrated a significant improvement in locomotion post-SCI in dogs treated with stem cell therapy. The therapy also led to an average increase of 3.15 points in the Olby score of the treated dogs compared to the control group. These findings highlights stem cell therapy's potential as a promising SCI treatment. The meta-analysis suggests that using bone marrow stem cells, undergoing neural differentiation in vitro, applying a surgical implantation or intrathecal route of administration, associating matrigel in combination with stem cells, and a waiting period of two weeks before starting treatment can enhance SCI treatment effectiveness.
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Affiliation(s)
- Avin Dadvand
- Department of Surgery and Radiology, Faculty of Veterinary Medicine, University of Tehran, Tehran, Iran.
| | - Alimohammad Yavari
- Department of Surgery and Radiology, Faculty of Veterinary Medicine, University of Tehran, Tehran, Iran.
| | - Amir Teimourpour
- Blood Transfusion Research Center, High Institute for Research and Education in Transfusion Medicine, Tehran, Iran
| | - Saeed Farzad-Mohajeri
- Department of Surgery and Radiology, Faculty of Veterinary Medicine, University of Tehran, Tehran, Iran; Department of Regenerative Medicine, Institute of Biomedical Research, University of Tehran, Tehran, Iran.
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10
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Zhang N, Hu J, Liu W, Cai W, Xu Y, Wang X, Li S, Ru B. Advances in Novel Biomaterial-Based Strategies for Spinal Cord Injury Treatment. Mol Pharm 2024. [PMID: 39235393 DOI: 10.1021/acs.molpharmaceut.3c01104] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 09/06/2024]
Abstract
Spinal cord injury (SCI) is a highly disabling neurological disorder. Its pathological process comprises an initial acute injury phase (primary injury) and a secondary injury phase (subsequent chronic injury). Although surgical, drug, and cell therapies have made some progress in treating SCI, there is no exact therapeutic strategy for treating SCI and promoting nerve regeneration due to the complexity of the pathological SCI process. The development of novel drug delivery systems to treat SCI is expected to significantly impact the individualized treatment of SCI due to its unique and excellent properties, such as active targeting and controlled release. In this review, we first describe the pathological progression of the SCI response, including primary and secondary injuries. Next, we provide a concise overview of newly developed nanoplatforms and their potential application in regulating and treating different pathological processes of SCI. Then, we introduce the existing potential problems and future clinical application perspectives of biomedical engineering-based therapies for SCI.
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Affiliation(s)
- Nannan Zhang
- Center for Rehabilitation Medicine, Department of Pain Management, Zhejiang Provincial People's Hospital, Affiliated People's Hospital, Hangzhou Medical College, Hangzhou, Zhejiang, 330004, China
| | - Jiaqi Hu
- Center for Rehabilitation Medicine, Department of Pain Management, Zhejiang Provincial People's Hospital, Affiliated People's Hospital, Hangzhou Medical College, Hangzhou, Zhejiang, 330004, China
| | - Wenlong Liu
- Center for Rehabilitation Medicine, Department of Pain Management, Zhejiang Provincial People's Hospital, Affiliated People's Hospital, Hangzhou Medical College, Hangzhou, Zhejiang, 330004, China
| | - Wenjun Cai
- Center for Rehabilitation Medicine, Department of Pain Management, Zhejiang Provincial People's Hospital, Affiliated People's Hospital, Hangzhou Medical College, Hangzhou, Zhejiang, 330004, China
| | - Yun Xu
- Center for Rehabilitation Medicine, Department of Pain Management, Zhejiang Provincial People's Hospital, Affiliated People's Hospital, Hangzhou Medical College, Hangzhou, Zhejiang, 330004, China
| | - Xiaojuan Wang
- Department of Clinical Pharmacy, The First Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou 310003, China
| | - Shun Li
- Center for Rehabilitation Medicine, Department of Pain Management, Zhejiang Provincial People's Hospital, Affiliated People's Hospital, Hangzhou Medical College, Hangzhou, Zhejiang, 330004, China
| | - Bin Ru
- Center for Rehabilitation Medicine, Department of Pain Management, Zhejiang Provincial People's Hospital, Affiliated People's Hospital, Hangzhou Medical College, Hangzhou, Zhejiang, 330004, China
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Zhu L, Wang F, Xing J, Hu X, Gou X, Li J, Pang R, Zhang A. Modulatory effects of gut microbiota on innate and adaptive immune responses following spinal cord injury. Exp Neurol 2024; 379:114866. [PMID: 38876194 DOI: 10.1016/j.expneurol.2024.114866] [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: 03/05/2024] [Revised: 05/18/2024] [Accepted: 06/10/2024] [Indexed: 06/16/2024]
Abstract
Spinal cord injury (SCI) represents a highly debilitating trauma to the central nervous system, currently lacking effective therapeutic strategies. The cascade of inflammatory responses induced by secondary damage following SCI disrupts the local immune environment at the injury site, ultimately exacerbating functional impairments post-injury. With advancing research on the gut-brain axis, evidence suggests that dysbiosis of the gut microbiota post-SCI amplifies inflammatory responses and plays a pivotal role in modulating post-injury immune-inflammatory responses. In this review article, we will explore the significant role of the gut microbiota and its metabolic products in modulating the responses of central and peripheral immune cells post-SCI, as well as their potential as therapeutic interventions for SCI treatment.
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Affiliation(s)
- Li Zhu
- School of Health Preservation and Rehabilitation, Chengdu University of Traditional Chinese Medicine, Chengdu, China; Department of Rehabilitation Medicine, General Hospital of Western Theater Command, Chengdu, China
| | - Fangfang Wang
- School of Health Preservation and Rehabilitation, Chengdu University of Traditional Chinese Medicine, Chengdu, China; Department of Rehabilitation Medicine, General Hospital of Western Theater Command, Chengdu, China
| | - Jiajia Xing
- School of Health Preservation and Rehabilitation, Chengdu University of Traditional Chinese Medicine, Chengdu, China; Department of Rehabilitation Medicine, General Hospital of Western Theater Command, Chengdu, China
| | - Xiaomin Hu
- Department of Rehabilitation Medicine, General Hospital of Western Theater Command, Chengdu, China
| | - Xiang Gou
- Department of Rehabilitation Medicine, General Hospital of Western Theater Command, Chengdu, China
| | - Jiayu Li
- School of Health Preservation and Rehabilitation, Chengdu University of Traditional Chinese Medicine, Chengdu, China; Department of Rehabilitation Medicine, General Hospital of Western Theater Command, Chengdu, China
| | - Rizhao Pang
- Department of Rehabilitation Medicine, General Hospital of Western Theater Command, Chengdu, China.
| | - Anren Zhang
- Department of Rehabilitation Medicine, Shanghai Fourth People's Hospital Affiliated to Tongji University School of Medicine, Shanghai, China.
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Borgida JS, Wagner RK, Wong AW, Yee S, Husseini J, Aneja A, Harris MB, Ly TV. Safety of Magnetic Resonance Imaging in Orthopaedic Trauma Patients With External Fixation: A Two-Center Case Series. J Orthop Trauma 2024; 38:510-514. [PMID: 39150302 DOI: 10.1097/bot.0000000000002843] [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] [Accepted: 05/06/2024] [Indexed: 08/17/2024]
Abstract
OBJECTIVES To report on adverse events during magnetic resonance imaging (MRI) in patients with external fixators. METHODS . DESIGN Retrospective case series. SETTING Two Level 1 trauma centers. PATIENT SELECTION CRITERIA Patients with external fixators on the appendicular skeleton or pelvis undergoing MRI between January 2005 and September 2023. OUTCOME MEASURES AND COMPARISONS Adverse events, defined as any undesirable event associated with the external fixator being inside or outside the MRI bore during imaging, including (subjective) heating, displacement or pullout of the external fixator, or early MRI termination for any reason. RESULTS A total of 97 patients with 110 external fixators underwent at least one MRI scan with an external fixator inside or outside of the MRI bore. The median age was 51 years (interquartile range: 39-63) and 56 (58%) were male. The most common external fixator locations were the ankle (24%), knee (21%), femur (21%), and pelvis (19%). The median duration of the MRI was 40 minutes (interquartile range: 26-58), 86% was performed using 1.5-Tesla MRI, and 14% was performed using 3.0-Tesla MRI. Ninety-five percent of MRI was performed for the cervical spine/head. Two MRI scans (1.6%), one of the shoulder and one of the head and cervical spine, with the external fixator outside of the bore were terminated early because of patient discomfort. There were no documented events of displacement or pullout of the external fixator. CONCLUSIONS These findings suggest that MRI scans of the (cervical) spine and head can be safely obtained in patients with external fixators on the appendicular skeleton or pelvis. Given the low numbers of MRI scans performed with the external fixator inside the bore, additional studies are necessitated to determine the safety of this procedure. The results from this study can aid orthopaedic surgeons, radiologists, and other stakeholders in developing local institutional guidelines on MRI scanning with external fixators in situ. LEVEL OF EVIDENCE Prognostic Level III. See Instructions for Authors for a complete description of levels of evidence.
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Affiliation(s)
- Jacob S Borgida
- Harvard Orthopaedic Trauma Initiative, Massachusetts General Hospital, Boston, MA
- Department of Orthopaedic Surgery, Massachusetts General Hospital, Harvard Medical School, Boston, MA
| | - Robert Kaspar Wagner
- Harvard Orthopaedic Trauma Initiative, Massachusetts General Hospital, Boston, MA
- Department of Orthopaedic Surgery, Massachusetts General Hospital, Harvard Medical School, Boston, MA
| | - Alice W Wong
- Harvard Orthopaedic Trauma Initiative, Massachusetts General Hospital, Boston, MA
- Department of Orthopaedic Surgery, Massachusetts General Hospital, Harvard Medical School, Boston, MA
| | - Seonghwan Yee
- Department of Radiology, Massachusetts General Hospital, Boston, MA; and
| | - Jad Husseini
- Division of Musculoskeletal Imaging and Intervention, Department of Radiology, Massachusetts General Hospital, Boston, MA
| | - Arun Aneja
- Department of Orthopaedic Surgery, Massachusetts General Hospital, Harvard Medical School, Boston, MA
| | - Mitchel B Harris
- Department of Orthopaedic Surgery, Massachusetts General Hospital, Harvard Medical School, Boston, MA
| | - Thuan V Ly
- Harvard Orthopaedic Trauma Initiative, Massachusetts General Hospital, Boston, MA
- Department of Orthopaedic Surgery, Massachusetts General Hospital, Harvard Medical School, Boston, MA
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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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Rao J, Xie H, Liang Z, Yang Z, Chen P, Zhou M, Xu X, Lin Y, Lin F, Wang R, Wang C, Chen C. Hypoxic-preconditioned mesenchymal stem cell-derived small extracellular vesicles inhibit neuronal death after spinal cord injury by regulating the SIRT1/Nrf2/HO-1 pathway. Front Pharmacol 2024; 15:1419390. [PMID: 39246654 PMCID: PMC11377843 DOI: 10.3389/fphar.2024.1419390] [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: 04/18/2024] [Accepted: 08/19/2024] [Indexed: 09/10/2024] Open
Abstract
Background Oxidative stress and apoptosis of neurons significantly contribute to the pathophysiological cascade of spinal cord injury (SCI). However, the role of hypoxic-preconditioned mesenchymal stem cell-derived small extracellular vesicles (H-sEVs) in promoting SCI repair remains unclear. Hence, the present study aims to investigate the regulatory effects of H-sEVs on neuronal oxidative stress and apoptotic responses following SCI. Methods The administration of H-sEVs of SCI rats was assessed using behavioral evaluations such as Basso-Beattie-Bresnahan (BBB) scores, neuroelectrophysiological monitoring, and Catwalk gait analysis. Indices of oxidative stress (including superoxide dismutase [SOD], total antioxidant capacity [T-AOC], and malondialdehyde [MDA]) were measured. Neuronal survival was evaluated through Nissl staining, while the expression level of sirtuin 1 (SIRT1) was examined using immunohistochemical staining. Additionally, histological evaluation of lesion size was performed using hematoxylin-eosin (HE) staining. Tunel cell apoptosis staining and analysis of apoptosis-associated proteins (B-cell lymphoma-2 [Bcl2] and BCL2-Associated X [Bax]) were conducted through immunofluorescence staining and western blot, respectively. Furthermore, the model of oxidative stress was established using PC12 cells, and apoptosis levels were assessed via flow cytometry and western blot analysis. Importantly, to ascertain the critical role of SIRT1, we performed SIRT1 knockout experiments in PC12 cells using lentivirus transfection, followed by western blot. Results Using those behavioral evaluations, we observed significant functional improvement after H-sEVs treatment. Nissl staining revealed that H-sEVs treatment promoted neuronal survival. Moreover, we found that H-sEVs effectively reduced oxidative stress levels after SCI. HE staining demonstrated that H-sEVs could reduce lesion area. Immunohistochemical analysis revealed that H-sEVs enhanced SIRT1 expression. Furthermore, Tunel cell apoptosis staining and western blot analysis of apoptosis-related proteins confirmed the anti-apoptotic effects of H-sEVs. The PC12 cells were used to further substantiate the neuroprotective properties of H-sEVs by significantly inhibiting neuronal death and attenuating oxidative stress. Remarkably, SIRT1 knockout in PC12 cells reversed the antioxidant stress effects induced by H-sEVs treatment. Additionally, we elucidated the involvement of the downstream Nrf2/HO-1 signaling pathway. Conclusion Our study provides valuable insights into the effects of H-sEVs on neuronal oxidative stress and apoptosis after SCI. These findings underscore the potential clinical significance of H-sEVs-based therapies for SCI.
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Affiliation(s)
- Jian Rao
- Department of Neurosurgery, Fujian Medical University Union Hospital, Fuzhou, Fujian, China
- Fujian Neurosurgical Institute, Fuzhou, Fujian, China
| | - Haishu Xie
- Department of Neurosurgery, Fujian Medical University Union Hospital, Fuzhou, Fujian, China
- Fujian Neurosurgical Institute, Fuzhou, Fujian, China
| | - Zeyan Liang
- Department of Neurosurgery, Fujian Medical University Union Hospital, Fuzhou, Fujian, China
- Fujian Neurosurgical Institute, Fuzhou, Fujian, China
| | - Zhelun Yang
- Department of Neurosurgery, Fujian Medical University Union Hospital, Fuzhou, Fujian, China
- Fujian Neurosurgical Institute, Fuzhou, Fujian, China
| | - Pingping Chen
- Department of Neurosurgery, Fujian Medical University Union Hospital, Fuzhou, Fujian, China
- Fujian Neurosurgical Institute, Fuzhou, Fujian, China
| | - Maochao Zhou
- Department of Neurosurgery, Fujian Medical University Union Hospital, Fuzhou, Fujian, China
- Fujian Neurosurgical Institute, Fuzhou, Fujian, China
| | - Xiongjie Xu
- Department of Neurosurgery, Fujian Medical University Union Hospital, Fuzhou, Fujian, China
- Fujian Neurosurgical Institute, Fuzhou, Fujian, China
| | - Yike Lin
- Department of Neurosurgery, Fujian Medical University Union Hospital, Fuzhou, Fujian, China
- Fujian Neurosurgical Institute, Fuzhou, Fujian, China
| | - Fabin Lin
- Department of Neurosurgery, Fujian Medical University Union Hospital, Fuzhou, Fujian, China
- Fujian Neurosurgical Institute, Fuzhou, Fujian, China
| | - Rui Wang
- Department of Neurosurgery, Fujian Medical University Union Hospital, Fuzhou, Fujian, China
- Fujian Neurosurgical Institute, Fuzhou, Fujian, China
| | - Chunhua Wang
- Department of Neurosurgery, Fujian Medical University Union Hospital, Fuzhou, Fujian, China
- Fujian Neurosurgical Institute, Fuzhou, Fujian, China
| | - Chunmei Chen
- Department of Neurosurgery, Fujian Medical University Union Hospital, Fuzhou, Fujian, China
- Fujian Neurosurgical Institute, Fuzhou, Fujian, China
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15
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Buzoianu-Anguiano V, Arriero-Cabañero A, Fernández-Mayoralas A, Torres-Llacsa M, Doncel-Pérez E. Axonal Growth and Fasciculation of Spinal Neurons Promoted by Aldynoglia in Alkaline Fibrin Hydrogel: Influence of Tol-51 Sulfoglycolipid. Int J Mol Sci 2024; 25:9173. [PMID: 39273121 PMCID: PMC11395328 DOI: 10.3390/ijms25179173] [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: 07/02/2024] [Revised: 08/13/2024] [Accepted: 08/20/2024] [Indexed: 09/15/2024] Open
Abstract
Traumatic spinal cord injury (tSCI) has complex pathophysiological events that begin after the initial trauma. One such event is fibroglial scar formation by fibroblasts and reactive astrocytes. A strong inhibition of axonal growth is caused by the activated astroglial cells as a component of fibroglial scarring through the production of inhibitory molecules, such as chondroitin sulfate proteoglycans or myelin-associated proteins. Here, we used neural precursor cells (aldynoglia) as promoters of axonal growth and a fibrin hydrogel gelled under alkaline conditions to support and guide neuronal cell growth, respectively. We added Tol-51 sulfoglycolipid as a synthetic inhibitor of astrocyte and microglia in order to test its effect on the axonal growth-promoting function of aldynoglia precursor cells. We obtained an increase in GFAP expression corresponding to the expected glial phenotype for aldynoglia cells cultured in alkaline fibrin. In co-cultures of dorsal root ganglia (DRG) and aldynoglia, the axonal growth promotion of DRG neurons by aldynoglia was not affected. We observed that the neural precursor cells first clustered together and then formed niches from which aldynoglia cells grew and connected to groups of adjacent cells. We conclude that the combination of alkaline fibrin with synthetic sulfoglycolipid Tol-51 increased cell adhesion, cell migration, fasciculation, and axonal growth capacity, promoted by aldynoglia cells. There was no negative effect on the behavior of aldynoglia cells after the addition of sulfoglycolipid Tol-51, suggesting that a combination of aldynoglia plus alkaline fibrin and Tol-51 compound could be useful as a therapeutic strategy for tSCI repair.
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Affiliation(s)
| | | | - Alfonso Fernández-Mayoralas
- Departamento de Química Bio-Orgánica, Instituto de Química Orgánica General (IQOG-CSIC), CSIC, 28006 Madrid, Spain
| | - Mabel Torres-Llacsa
- Hospital Nacional de Parapléjicos, Servicio de Salud de Castilla La Mancha, 45071 Toledo, Spain
| | - Ernesto Doncel-Pérez
- Hospital Nacional de Parapléjicos, Servicio de Salud de Castilla La Mancha, 45071 Toledo, Spain
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16
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Li J, Li J, Li X, Wang W, Ding Y, Zhou J, Wang W, Xi Y, Gou R, Liu S, Zhou Z, Gao M. Identification of coagulation diagnostic biomarkers related to the severity of spinal cord injury. Int Immunopharmacol 2024; 137:112505. [PMID: 38908081 DOI: 10.1016/j.intimp.2024.112505] [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: 01/17/2024] [Revised: 04/02/2024] [Accepted: 06/14/2024] [Indexed: 06/24/2024]
Abstract
BACKGROUND Blood always shows coagulation changes after spinal cord injury (SCI), and identifying these blood changes may be helpful for diagnosis and treatment of SCI. Nevertheless, studies to date on blood coagulation changes after SCI in humans are not comprehensive. Therefore, this study aims to identify blood coagulation diagnostic biomarkers and immune changes related to SCI and its severity levels. METHODS Human blood sequencing datasets were obtained from public databases. Differentially expressed coagulation-related genes were analyzed (DECRGs). Enrichment analysis and assessment of immune changes were conducted. Weighted gene co-expression network analysis, least absolute shrinkage and selection operator logistic regression were used to identify biomarkers. Validation for these biomarkers was performed. The correlation between biomarkers and immune cells was evaluated. Transcription factors, miRNA, lncRNA, and drugs that can regulate biomarkers were analyzed. RESULTS DECRGs associated with SCI and its different grades were identified, showing enrichment in altered coagulation and immune-related signaling pathways. ADAM9, CD55, and STAT4 were identified as coagulation diagnostic biomarkers for SCI. IRF4 and PABPC4 were identified as coagulation diagnostic biomarkers for American Spinal Injury Association Impairment Scale (AIS) A grade of SCI. GP9 was designated as a diagnostic biomarker for AIS D grade of SCI. Immune changes in blood of SCI and its different grades were observed. Correlation between diagnostic biomarkers and immune cells were identified. Transcription factors, miRNA, lncRNA, and drugs that can regulate diagnostic biomarker expression were discovered. CONCLUSION Therefore, detecting the expression of these putative diagnostic biomarkers and related immune changes may be helpful for predicting the severity of SCI. Uncovering potential regulatory mechanisms for biomarkers may be beneficial for further research.
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Affiliation(s)
- Jianfeng Li
- Innovation Platform of Regeneration and Repair of Spinal Cord and Nerve Injury, Department of Orthopedic Surgery, The Seventh Affiliated Hospital, Sun Yat-sen University, Shenzhen, Guangdong, China, 518107; Guangdong Provincial Key Laboratory of Orthopedics and Traumatology, Orthopedic Research Institute/Department of Spinal Surgery, The First Affiliated Hospital of Sun Yat-sen University, Guangzhou, Guangdong, China, 510080
| | - Junhong Li
- Innovation Platform of Regeneration and Repair of Spinal Cord and Nerve Injury, Department of Orthopedic Surgery, The Seventh Affiliated Hospital, Sun Yat-sen University, Shenzhen, Guangdong, China, 518107; Guangdong Provincial Key Laboratory of Orthopedics and Traumatology, Orthopedic Research Institute/Department of Spinal Surgery, The First Affiliated Hospital of Sun Yat-sen University, Guangzhou, Guangdong, China, 510080
| | - Xianlong Li
- Innovation Platform of Regeneration and Repair of Spinal Cord and Nerve Injury, Department of Orthopedic Surgery, The Seventh Affiliated Hospital, Sun Yat-sen University, Shenzhen, Guangdong, China, 518107; Guangdong Provincial Key Laboratory of Orthopedics and Traumatology, Orthopedic Research Institute/Department of Spinal Surgery, The First Affiliated Hospital of Sun Yat-sen University, Guangzhou, Guangdong, China, 510080
| | - Wei Wang
- Linyi Central Hospital, Linyi, Shandong, China, 276000
| | - Yi Ding
- Department of Spine Surgery, Ganzhou People's Hospital, The Affiliated Ganzhou Hospital of Nanchang University, Ganzhou, Jiangxi, China, 341000
| | - Jiaxiang Zhou
- Department of Orthopedic Surgery, The Affiliated Hospital of Qingdao University, Qingdao, Shandong, China, 266000
| | - Wentao Wang
- Innovation Platform of Regeneration and Repair of Spinal Cord and Nerve Injury, Department of Orthopedic Surgery, The Seventh Affiliated Hospital, Sun Yat-sen University, Shenzhen, Guangdong, China, 518107; Guangdong Provincial Key Laboratory of Orthopedics and Traumatology, Orthopedic Research Institute/Department of Spinal Surgery, The First Affiliated Hospital of Sun Yat-sen University, Guangzhou, Guangdong, China, 510080
| | - Yongming Xi
- Department of Orthopedic Surgery, The Affiliated Hospital of Qingdao University, Qingdao, Shandong, China, 266000
| | - Ruijie Gou
- Department of Orthopedics and Trauma, The Affiliated Hospital of Yunnan University, Yunnan University, Kunming, Yunnan, China, 650091
| | - Shaoyu Liu
- Guangdong Provincial Key Laboratory of Orthopedics and Traumatology, Orthopedic Research Institute/Department of Spinal Surgery, The First Affiliated Hospital of Sun Yat-sen University, Guangzhou, Guangdong, China, 510080
| | - Zhiyu Zhou
- Innovation Platform of Regeneration and Repair of Spinal Cord and Nerve Injury, Department of Orthopedic Surgery, The Seventh Affiliated Hospital, Sun Yat-sen University, Shenzhen, Guangdong, China, 518107; Guangdong Provincial Key Laboratory of Orthopedics and Traumatology, Orthopedic Research Institute/Department of Spinal Surgery, The First Affiliated Hospital of Sun Yat-sen University, Guangzhou, Guangdong, China, 510080.
| | - Manman Gao
- Department of Pediatric Orthopedics, Fuzhou Second Hospital Affiliated to Xiamen University, Fuzhou, Fujian, China, 350007.
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Abraham M, Shalom M, Gold J, Seaton M, Maleski Smith A, Gendreau J, Brandel MG, Ciacci J. Stem Cells in the Treatment of Spinal Cord Injury: A Review of Currently Registered Clinical Trials. World Neurosurg 2024:S1878-8750(24)01444-X. [PMID: 39159672 DOI: 10.1016/j.wneu.2024.08.074] [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: 08/04/2024] [Accepted: 08/12/2024] [Indexed: 08/21/2024]
Abstract
BACKGROUND Spinal cord injury (SCI) affects around 18,000 individuals annually, representing nearly one-third of all paralysis cases. Stem cell therapy, a focal point in contemporary neuroregeneration research for SCI treatment, holds potential in leveraging undifferentiated stem cells to regenerate damaged tissues. This study seeks to comprehensively analyze current clinical trials exploring the potential use of stem cells in treating spinal cord injuries. METHODS A data retrieval approach examined the ClinicalTrials.gov database using the terms "spinal cord injury" and "stem cells." Exclusion criteria eliminated studies not recruiting, terminated prematurely, suspended, withdrawn, or of unknown status. Data for each trial, including ClinicalTrial.gov NCT identifier, title, intervention details, initiation/completion dates, and sample size, were systematically collected. Literature searches on PubMed.gov were conducted for completed trials with results. RESULTS Thirty clinical trials were analyzed, with 20 completed and six with published results on PubMed.gov. Interventions included 20 biological (66.7%), 6 procedural (20%), and 4 drug interventions (13.3%). Stem cell sources varied, including bone marrow (46.7%), umbilical cells (20%), adipose tissue (20%), embryonic cells (6.7%), and neural cells (6.7%). Trials spanned 2005 to 2022, with 11 (36.7%) commencing in or after 2017. Among six trials with results, 50% used bone marrow-derived stem cells. CONCLUSIONS The promising potential of stem cells in neuroregenerative SCI treatment necessitates further exploration through large-scale, multicenter clinical trials to enhance understanding and guide wider adoption of this emerging treatment paradigm.
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Affiliation(s)
- Mickey Abraham
- Department of Neurosurgery, University of California San Diego, La Jolla, California, USA.
| | - Moshe Shalom
- Tel Aviv University Sackler School of Medicine, Tel Aviv, Israel
| | - Justin Gold
- Cooper Medical School of Rowan University, Camden, New Jersey, USA
| | - Margaret Seaton
- University of California San Diego School of Medicine, San Diego, California, USA
| | | | - Julian Gendreau
- Department of Biomedical Engineering, Johns Hopkins University, Baltimore, Maryland, USA
| | - Michael G Brandel
- Department of Neurosurgery, University of California San Diego, La Jolla, California, USA
| | - Joseph Ciacci
- Department of Neurosurgery, University of California San Diego, La Jolla, California, USA
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18
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Wang C, Li Y, Wang L, Wang Y, Gao Z, Lu X. Analysis of risk factors affecting postoperative neurological recovery in patients with cervical spine fracture in ankylosing spondylitis. Medicine (Baltimore) 2024; 103:e39232. [PMID: 39121249 PMCID: PMC11315538 DOI: 10.1097/md.0000000000039232] [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: 12/19/2023] [Accepted: 07/18/2024] [Indexed: 08/11/2024] Open
Abstract
Ankylosing spondylitis (AS) is a chronic progressive inflammatory disease that mainly affects the spine and involves the sacroiliac and peripheral joints. Low-energy trauma can often lead to spinal fractures and spinal cord injuries (SCIs), the treatment of AS is challenging. The prognosis of neurological function in patients with AS cervical fracture and SCI is a major problem that must sought clinician attention on urgent basis. A total of 106 patients with AS cervical fractures who underwent surgical treatment at Shanghai Changzheng Hospital between August 2009 and 2021 were included in this study. All the patients were divided into 2 groups (improved group and the control group) based on their neurological function improvement at 1 year mark after the surgery. The baseline characteristics, perioperative factors, and procedural outcomes of all the patients including injury type, AS drug treatment, the injured segment, ossified anterior longitudinal ligament injury, spinal hypersignal, decompression time window, operation duration, blood loss, preoperative and postoperative American Spinal Injury Association (ASIA) score were recorded and analyzed. Among the 106 patients, 79 demonstrated improved neurological function at 1 year mark after the surgery. Binary univariate logistic regression analysis revealed significant differences in injury type (P = .018), ossified anterior longitudinal ligament injury (P = .01), operation duration (P = .002), spinal hypersignal (P = .001), preoperative ASIA score (P < .001), and prior AS drug treatment (P = .012). No significant differences were observed in the other variables (P > .05). Binary multivariate logistic regression analysis identified spinal hypersignal (OR = 37.185, P = .028), preoperative ASIA score (OR = 0.16, P = .012) and previous AS drug treatment (OR = 0.296, P = .049) as factors associated with postoperative neurological function improvement. The preoperative ASIA score and previous drug treatment of AS were identified as protective factors affecting the improvement of neurological functions in patients with AS cervical fracture after surgery. Preoperative T2-weighted spinal hypersignal was identified as an independent risk factor affecting the improvement of neurological function recovery in patients with AS cervical fracture after the surgery.
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Affiliation(s)
- Can Wang
- Department of Orthopaedics, North Sichuan medical College, Nanchong Sichuan, China
| | - Yang Li
- Department of Orthopaedics, Shanghai Changzheng Hospital, Naval Medical University, Shanghai, China
| | - Liang Wang
- Department of Orthopaedics, Shanghai Changzheng Hospital, Naval Medical University, Shanghai, China
| | - Yijin Wang
- Department of Orthopaedics, North Sichuan medical College, Nanchong Sichuan, China
| | - Zhongya Gao
- Department of Orthopaedics, Shanghai Changzheng Hospital, Naval Medical University, Shanghai, China
| | - Xuhua Lu
- Department of Orthopaedics, Shanghai Changzheng Hospital, Naval Medical University, Shanghai, China
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19
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Li Q, Gao S, Qi Y, Shi N, Wang Z, Saiding Q, Chen L, Du Y, Wang B, Yao W, Sarmento B, Yu J, Lu Y, Wang J, Cui W. Regulating Astrocytes via Short Fibers for Spinal Cord Repair. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2024:e2406742. [PMID: 39120009 DOI: 10.1002/advs.202406742] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/18/2024] [Revised: 07/11/2024] [Indexed: 08/10/2024]
Abstract
Reactive astrogliosis is the main cause of secondary injury to the central nerves. Biomaterials can effectively suppress astrocyte activation, but the mechanism remains unclear. Herein, Differentially Expressed Genes (DEGs) are identified through whole transcriptome sequencing in a mouse model of spinal cord injury, revealing the VIM gene as a pivotal regulator in the reactive astrocytes. Moreover, DEGs are predominantly concentrated in the extracellular matrix (ECM). Based on these, 3D injectable electrospun short fibers are constructed to inhibit reactive astrogliosis. Histological staining and functional analysis indicated that fibers with unique 3D network spatial structures can effectively constrain the reactive astrocytes. RNA sequencing and single-cell sequencing results reveal that short fibers downregulate the expression of the VIM gene in astrocytes by modulating the "ECM receptor interaction" pathway, inhibiting the transcription of downstream Vimentin protein, and thereby effectively suppressing reactive astrogliosis. Additionally, fibers block the binding of Vimentin protein with inflammation-related proteins, downregulate the NF-κB signaling pathway, inhibit neuron apoptosis, and consequently promote the recovery of spinal cord neural function. Through mechanism elucidation-material design-feedback regulation, this study provides a detailed analysis of the mechanism chain by which short fibers constrain the abnormal spatial expansion of astrocytes and promote spinal cord neural function.
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Affiliation(s)
- Qianyi Li
- Department of Orthopaedics, Shanghai Key Laboratory for Prevention and Treatment of Bone and Joint Diseases, Shanghai Institute of Traumatology and Orthopaedics, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, 200025, P. R. China
- Department of Emergency, Ruijin Hospital, Shanghai Jiaotong University School of Medicine, Shanghai, 200025, P. R. China
- Pˆole Sino-Franc¸ais de Recherches en Sciences du Vivant et G´enomique, Shanghai, 200025, P. R. China
- International Laboratory in Cancer, Aging and Hematology, Shanghai Jiao Tong University School of Medicine/Ruijin Hospital/CNRS/Inserm/Cote d'Azur University, Shanghai, 200025, P. R. China
| | - Shuaiyun Gao
- Department of Emergency, Ruijin Hospital, Shanghai Jiaotong University School of Medicine, Shanghai, 200025, P. R. China
- Pˆole Sino-Franc¸ais de Recherches en Sciences du Vivant et G´enomique, Shanghai, 200025, P. R. China
- International Laboratory in Cancer, Aging and Hematology, Shanghai Jiao Tong University School of Medicine/Ruijin Hospital/CNRS/Inserm/Cote d'Azur University, Shanghai, 200025, P. R. China
| | - Yang Qi
- Department of Emergency, Ruijin Hospital, Shanghai Jiaotong University School of Medicine, Shanghai, 200025, P. R. China
| | - Nuo Shi
- Peterson's Lab, Shanghai, 200030, P. R. China
| | | | - Qimanguli Saiding
- Department of Orthopaedics, Shanghai Key Laboratory for Prevention and Treatment of Bone and Joint Diseases, Shanghai Institute of Traumatology and Orthopaedics, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, 200025, P. R. China
| | - Liang Chen
- Department of Orthopaedics, Shanghai Key Laboratory for Prevention and Treatment of Bone and Joint Diseases, Shanghai Institute of Traumatology and Orthopaedics, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, 200025, P. R. China
| | - Yawei Du
- Department of Orthopaedics, Shanghai Key Laboratory for Prevention and Treatment of Bone and Joint Diseases, Shanghai Institute of Traumatology and Orthopaedics, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, 200025, P. R. China
| | - Bo Wang
- Pˆole Sino-Franc¸ais de Recherches en Sciences du Vivant et G´enomique, Shanghai, 200025, P. R. China
- International Laboratory in Cancer, Aging and Hematology, Shanghai Jiao Tong University School of Medicine/Ruijin Hospital/CNRS/Inserm/Cote d'Azur University, Shanghai, 200025, P. R. China
| | - Wenfei Yao
- Department of Emergency, Ruijin Hospital, Shanghai Jiaotong University School of Medicine, Shanghai, 200025, P. R. China
| | - Bruno Sarmento
- I3-Instituto de Investigação e Inovação Em Saúde and INEB-Instituto de Engenharia Biomédica, Universidade Do Porto, Rua Alfredo Allen 208, Porto, 4200-135, Portugal
- IUCS-Instituto Universitário de Ciências da Saúde, CESPU, Rua Central de Gandra 1317, Gandra, 4585-116, Portugal
| | - Jie Yu
- Department of Emergency, Ruijin Hospital, Shanghai Jiaotong University School of Medicine, Shanghai, 200025, P. R. China
| | - Yiming Lu
- Department of Emergency, Ruijin Hospital, Shanghai Jiaotong University School of Medicine, Shanghai, 200025, P. R. China
- Pˆole Sino-Franc¸ais de Recherches en Sciences du Vivant et G´enomique, Shanghai, 200025, P. R. China
- International Laboratory in Cancer, Aging and Hematology, Shanghai Jiao Tong University School of Medicine/Ruijin Hospital/CNRS/Inserm/Cote d'Azur University, Shanghai, 200025, P. R. China
- Division of Critical Care, Nanxiang Hospital of Jiading District, Shanghai, 201802, P. R. China
| | - Juan Wang
- Department of Orthopaedics, Shanghai Key Laboratory for Prevention and Treatment of Bone and Joint Diseases, Shanghai Institute of Traumatology and Orthopaedics, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, 200025, P. R. China
| | - Wenguo Cui
- Department of Orthopaedics, Shanghai Key Laboratory for Prevention and Treatment of Bone and Joint Diseases, Shanghai Institute of Traumatology and Orthopaedics, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, 200025, P. R. China
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20
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Wang S, Xu W, Wang J, Hu X, Wu Z, Li C, Xiao Z, Ma B, Cheng L. Tracing the evolving dynamics and research hotspots of spinal cord injury and surgical decompression from 1975 to 2024: a bibliometric analysis. Front Neurol 2024; 15:1442145. [PMID: 39161868 PMCID: PMC11330800 DOI: 10.3389/fneur.2024.1442145] [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: 06/01/2024] [Accepted: 07/23/2024] [Indexed: 08/21/2024] Open
Abstract
Background Exploration of the benefits and timing of surgical decompression in spinal cord injury (SCI) has been a research hotspot. However, despite the higher volume and increasing emphasis on quality there remains no bibliometric view on SCI and surgical decompression. In this study, we aimed to perform bibliometric analysis to reveal the core countries, affiliations, journals, authors, and developmental trends in SCI and surgical decompression across the past 50 years. Methods Articles and reviews were retrieved from web of science core collection between 1975 and 2024. The bibliometrix package in R was used for data analysis and visualizing. Results A total of 8,688 documents were investigated, indicating an ascending trend in annual publications. The USA and China played as the leaders in scientific productivity. The University of Toronto led in institutional productions. Core authors, such as Michael G. Fehlings, showed high productivity, and occasional authors showed widespread interests. Core journals like Spine and Spinal Cord served as beacons in this field. The interaction of core authors and international collaboration accentuated the cross-disciplinary feature of the field. Prominent documents emphasized the clinical significance of early decompression in 24 h post SCI. Conclusion Based on comprehensive bibliometric analysis and literature review, we identified the hotspots and future directions of this field: (1) further investigation into the molecular and cellular mechanisms to provide pre-clinical evidence for biological effects of early surgical decompression in SCI animal models; (2) further evaluation and validation of the optimal time window of surgical decompression based on large cohort, considering the inherent heterogeneity of subpopulations in complicated immune responses post SCI; (3) further exploration on the benefits of early decompression on the neurological, functional, and clinical outcomes in acute SCI; (4) evaluation of the optimal surgical methods and related outcomes; (5) applications of artificial intelligence-based technologies in spinal surgical decompression.
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Affiliation(s)
- Siqiao Wang
- Division of Spine, Department of Orthopedics, Tongji Hospital Affiliated to Tongji University School of Medicine, Shanghai, China
- Key Laboratory of Spine and Spinal Cord Injury Repair and Regeneration (Tongji University), Ministry of Education, Shanghai, China
| | - Wei Xu
- Division of Spine, Department of Orthopedics, Tongji Hospital Affiliated to Tongji University School of Medicine, Shanghai, China
- Key Laboratory of Spine and Spinal Cord Injury Repair and Regeneration (Tongji University), Ministry of Education, Shanghai, China
- Institute of Spinal and Spinal Cord Injury, Tongji University School of Medicine, Shanghai, China
- Stem Cell Translational Research Center, Tongji Hospital, Tongji University School of Medicine, Shanghai, China
| | - Jianjie Wang
- Division of Spine, Department of Orthopedics, Tongji Hospital Affiliated to Tongji University School of Medicine, Shanghai, China
- Key Laboratory of Spine and Spinal Cord Injury Repair and Regeneration (Tongji University), Ministry of Education, Shanghai, China
- Institute of Spinal and Spinal Cord Injury, Tongji University School of Medicine, Shanghai, China
- Stem Cell Translational Research Center, Tongji Hospital, Tongji University School of Medicine, Shanghai, China
| | - Xiao Hu
- Division of Spine, Department of Orthopedics, Tongji Hospital Affiliated to Tongji University School of Medicine, Shanghai, China
- Key Laboratory of Spine and Spinal Cord Injury Repair and Regeneration (Tongji University), Ministry of Education, Shanghai, China
- Institute of Spinal and Spinal Cord Injury, Tongji University School of Medicine, Shanghai, China
- Stem Cell Translational Research Center, Tongji Hospital, Tongji University School of Medicine, Shanghai, China
| | - Zhourui Wu
- Division of Spine, Department of Orthopedics, Tongji Hospital Affiliated to Tongji University School of Medicine, Shanghai, China
- Key Laboratory of Spine and Spinal Cord Injury Repair and Regeneration (Tongji University), Ministry of Education, Shanghai, China
- Institute of Spinal and Spinal Cord Injury, Tongji University School of Medicine, Shanghai, China
- Stem Cell Translational Research Center, Tongji Hospital, Tongji University School of Medicine, Shanghai, China
| | - Chen Li
- Division of Spine, Department of Orthopedics, Tongji Hospital Affiliated to Tongji University School of Medicine, Shanghai, China
- Key Laboratory of Spine and Spinal Cord Injury Repair and Regeneration (Tongji University), Ministry of Education, Shanghai, China
- Institute of Spinal and Spinal Cord Injury, Tongji University School of Medicine, Shanghai, China
- Stem Cell Translational Research Center, Tongji Hospital, Tongji University School of Medicine, Shanghai, China
| | - Zhihui Xiao
- Division of Spine, Department of Orthopedics, Tongji Hospital Affiliated to Tongji University School of Medicine, Shanghai, China
- Key Laboratory of Spine and Spinal Cord Injury Repair and Regeneration (Tongji University), Ministry of Education, Shanghai, China
| | - Bei Ma
- Division of Spine, Department of Orthopedics, Tongji Hospital Affiliated to Tongji University School of Medicine, Shanghai, China
- Key Laboratory of Spine and Spinal Cord Injury Repair and Regeneration (Tongji University), Ministry of Education, Shanghai, China
- Institute of Spinal and Spinal Cord Injury, Tongji University School of Medicine, Shanghai, China
- Stem Cell Translational Research Center, Tongji Hospital, Tongji University School of Medicine, Shanghai, China
| | - Liming Cheng
- Division of Spine, Department of Orthopedics, Tongji Hospital Affiliated to Tongji University School of Medicine, Shanghai, China
- Key Laboratory of Spine and Spinal Cord Injury Repair and Regeneration (Tongji University), Ministry of Education, Shanghai, China
- Institute of Spinal and Spinal Cord Injury, Tongji University School of Medicine, Shanghai, China
- Stem Cell Translational Research Center, Tongji Hospital, Tongji University School of Medicine, Shanghai, China
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21
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Shu H, Zhang X, Pu Y, Zhang Y, Huang S, Ma J, Cao L, Zhou X. Fucoidan improving spinal cord injury recovery: Modulating microenvironment and promoting remyelination. CNS Neurosci Ther 2024; 30:e14903. [PMID: 39139089 PMCID: PMC11322593 DOI: 10.1111/cns.14903] [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: 02/17/2024] [Revised: 07/05/2024] [Accepted: 07/09/2024] [Indexed: 08/15/2024] Open
Abstract
INTRODUCTION Excessive neuroinflammation, apoptosis, glial scar, and demyelination triggered by spinal cord injury (SCI) are major obstacles to SCI repair. Fucoidan, a natural marine plant extract, possesses broad-spectrum anti-inflammatory and immunomodulatory effects and is regarded as a potential therapeutic for various diseases, including neurological disorders. However, its role in SCI has not been investigated. METHODS In this study, we established an SCI model in mice and intervened in injury repair by daily intraperitoneal injections of different doses of fucoidan (10 and 20 mg/kg). Concurrently, primary oligodendrocyte precursor cells (OPCs) were treated in vitro to validate the differentiation-promoting effect of fucoidan on OPCs. Basso Mouse Scale (BMS), Louisville Swim Scale (LSS), and Rotarod test were carried out to measure the functional recovery. Immunofluorescence staining, and transmission electron microscopy (TEM) were performed to assess the neuroinflammation, apoptosis, glial scar, and remyelination. Western blot analysis was conducted to clarify the underlying mechanism of remyelination. RESULTS Our results indicate that in the SCI model, fucoidan exhibits significant anti-inflammatory effects and promotes the transformation of pro-inflammatory M1-type microglia/macrophages into anti-inflammatory M2-type ones. Fucoidan enhances the survival of neurons and axons in the injury area and improves remyelination. Additionally, fucoidan promotes OPCs differentiation into mature oligodendrocytes by activating the PI3K/AKT/mTOR pathway. CONCLUSION Fucoidan improves SCI repair by modulating the microenvironment and promoting remyelination.
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Affiliation(s)
- Haoming Shu
- Department of Orthopedics, Second Affiliated HospitalNaval Medical UniversityShanghaiChina
| | - Xin Zhang
- Department of Neurobiology, Key Laboratory of Molecular Neurobiology of the Ministry of EducationNaval Medical UniversityShanghaiChina
| | - Yingyan Pu
- Department of Neurobiology, Key Laboratory of Molecular Neurobiology of the Ministry of EducationNaval Medical UniversityShanghaiChina
| | - Yinuo Zhang
- Department of Orthopedics, Second Affiliated HospitalNaval Medical UniversityShanghaiChina
| | - Shixue Huang
- Department of Orthopedics, Second Affiliated HospitalNaval Medical UniversityShanghaiChina
| | - Jun Ma
- Department of Orthopedics, Shanghai General HospitalShanghai Jiao Tong University School of MedicineShanghaiChina
| | - Li Cao
- Department of Neurobiology, Key Laboratory of Molecular Neurobiology of the Ministry of EducationNaval Medical UniversityShanghaiChina
| | - Xuhui Zhou
- Department of Orthopedics, Second Affiliated HospitalNaval Medical UniversityShanghaiChina
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Zhang L, Xu J, Yin S, Wang Q, Jia Z, Wen T. Albiflorin Attenuates Neuroinflammation and Improves Functional Recovery After Spinal Cord Injury Through Regulating LSD1-Mediated Microglial Activation and Ferroptosis. Inflammation 2024; 47:1313-1327. [PMID: 38340239 DOI: 10.1007/s10753-024-01978-8] [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] [Received: 11/29/2023] [Revised: 01/03/2024] [Accepted: 01/17/2024] [Indexed: 02/12/2024]
Abstract
Spinal cord injury (SCI) is a serious, prolonged, and irreversible injury with few therapeutic options. Albiflorin (AF) possesses powerful pharmacodynamic properties and exerts protective effects against neuroinflammation. However, no research has examined the neuroprotective effect of AF following SCI. Rats were received laminectomy to establish SCI animal model and treated with AF (20 mg/kg and 40 mg/kg). Behavioral experiments were conducted to assess the impacts of AF on motor function after SCI in rats. Hematoxylin-eosin (HE) staining, Nissl staining, and Prussian Blue staining were performed to observe histological changes, neuronal damage, and iron deposition, respectively. Transmission electron microscope was adopted to observe the ultrastructure of spinal cord tissues. Immunofluorescence assay was performed to examine neurons and microglia. ELISA assay was used to examine the production of cytokines. Western blot assay was used to detect the expression level of ferroptosis-related proteins. Microglia BV-2 cells were induced by LPS to mimic the neuroinflammatory condition. Cell viability was assessed by CCK-8 assay, and lipid peroxidase level was measured by C11 BODIPY 581/591 staining. Molecular docking technology was utilized to confirm the relationship between AF and LSD1. AF improved the motor functional recovery after SCI in rats. Meanwhile, AF attenuated neuron apoptosis and microglia activation, reduced the production of pro-inflammatory cytokines and iron accumulation, and inhibited spinal cord ferroptosis following SCI in rats. LSD1 was verified to be a target protein of AF, and AF could concentration-dependently downregulate LSD1 expression in injured spinal cords in vivo and LPS-induced BV-2 cells in vitro. In addition, AF not only inhibited ferroptosis through reducing lipid peroxidase and iron levels and regulating ferroptosis-related proteins, but also inhibited microglial activation and reduced pro-inflammatory cytokines production in LPS-induced BV-2 cells; however, these changes were partly counteracted by LSD1 overexpression. AF could reduce microglial activation and ferroptosis, attenuate neuroinflammation, and improve functional recovery following SCI by downregulating LSD1, providing novel therapeutic strategies for the treatment of SCI.
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Affiliation(s)
- Longyu Zhang
- Department of Orthopedics, Dongzhimen Hospital Beijing University of Chinese Medicine, 116 Cuiping West Road, Tongzhou District, Beijing, 101121, China
| | - Jiao Xu
- Department of Orthopedics, Dongzhimen Hospital Beijing University of Chinese Medicine, 116 Cuiping West Road, Tongzhou District, Beijing, 101121, China
| | - Shi Yin
- Department of Orthopedics, Dongzhimen Hospital Beijing University of Chinese Medicine, 116 Cuiping West Road, Tongzhou District, Beijing, 101121, China
| | - Qiang Wang
- Department of Orthopedics, Dongzhimen Hospital Beijing University of Chinese Medicine, 116 Cuiping West Road, Tongzhou District, Beijing, 101121, China
| | - Zhiwei Jia
- Department of Orthopedics, Dongzhimen Hospital Beijing University of Chinese Medicine, 116 Cuiping West Road, Tongzhou District, Beijing, 101121, China
| | - Tianlin Wen
- Department of Orthopedics, Dongzhimen Hospital Beijing University of Chinese Medicine, 116 Cuiping West Road, Tongzhou District, Beijing, 101121, China.
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23
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Jiang Y, Cai Y, Yang N, Gao S, Li Q, Pang Y, Su P. Molecular mechanisms of spinal cord injury repair across vertebrates: A comparative review. Eur J Neurosci 2024; 60:4552-4568. [PMID: 38978308 DOI: 10.1111/ejn.16462] [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: 11/16/2023] [Revised: 05/09/2024] [Accepted: 06/20/2024] [Indexed: 07/10/2024]
Abstract
In humans and other adult mammals, axon regeneration is difficult in axotomized neurons. Therefore, spinal cord injury (SCI) is a devastating event that can lead to permanent loss of locomotor and sensory functions. Moreover, the molecular mechanisms of axon regeneration in vertebrates are not very well understood, and currently, no effective treatment is available for SCI. In striking contrast to adult mammals, many nonmammalian vertebrates such as reptiles, amphibians, bony fishes and lampreys can spontaneously resume locomotion even after complete SCI. In recent years, rapid progress in the development of next-generation sequencing technologies has offered valuable information on SCI. In this review, we aimed to provide a comparison of axon regeneration process across classical model organisms, focusing on crucial genes and signalling pathways that play significant roles in the regeneration of individually identifiable descending neurons after SCI. Considering the special evolutionary location and powerful regenerative ability of lamprey and zebrafish, they will be the key model organisms for ongoing studies on spinal cord regeneration. Detailed study of SCI in these model organisms will help in the elucidation of molecular mechanisms of neuron regeneration across species.
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Affiliation(s)
- Ying Jiang
- College of Life Science, Liaoning Normal University, Dalian, China
- Lamprey Research Center, Liaoning Normal University, Dalian, China
- Collaborative Innovation Center of Seafood Deep Processing, Dalian Polytechnic University, Dalian, China
| | - Yang Cai
- College of Life Science, Liaoning Normal University, Dalian, China
- Lamprey Research Center, Liaoning Normal University, Dalian, China
- Collaborative Innovation Center of Seafood Deep Processing, Dalian Polytechnic University, Dalian, China
| | - Ning Yang
- College of Life Science, Liaoning Normal University, Dalian, China
- Lamprey Research Center, Liaoning Normal University, Dalian, China
- Collaborative Innovation Center of Seafood Deep Processing, Dalian Polytechnic University, Dalian, China
| | - Si Gao
- College of Life Science, Liaoning Normal University, Dalian, China
- Lamprey Research Center, Liaoning Normal University, Dalian, China
- Collaborative Innovation Center of Seafood Deep Processing, Dalian Polytechnic University, Dalian, China
| | - Qingwei Li
- College of Life Science, Liaoning Normal University, Dalian, China
- Lamprey Research Center, Liaoning Normal University, Dalian, China
- Collaborative Innovation Center of Seafood Deep Processing, Dalian Polytechnic University, Dalian, China
| | - Yue Pang
- College of Life Science, Liaoning Normal University, Dalian, China
- Lamprey Research Center, Liaoning Normal University, Dalian, China
- Collaborative Innovation Center of Seafood Deep Processing, Dalian Polytechnic University, Dalian, China
| | - Peng Su
- College of Life Science, Liaoning Normal University, Dalian, China
- Lamprey Research Center, Liaoning Normal University, Dalian, China
- Collaborative Innovation Center of Seafood Deep Processing, Dalian Polytechnic University, Dalian, China
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24
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Zhu K, Zheng Z, Zhang YY, Li ZY, Zhou AF, Hu CW, Shu B, Zhou LY, Shi Q, Wang YJ, Yao M, Cui XJ. A comprehensive and systematic review of the potential neuroprotective effect of quercetin in rat models of spinal cord injury. Nutr Neurosci 2024; 27:857-869. [PMID: 37691351 DOI: 10.1080/1028415x.2023.2257425] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 09/12/2023]
Abstract
CONTEXT Spinal cord injury (SCI) is a potentially fatal neurological disease with severe complications and a high disability rate. An increasing number of animal experimental studies support the therapeutic effect of quercetin, which is a natural anti-inflammatory and antioxidant bioflavonoid. OBJECTIVE This paper reviewed the therapeutic effect of quercetin on a rat SCI model and summarized the relevant mechanistic research. DATA SOURCES PubMed, EMBASE, Web of Science, Science Direct, WanFang Data, SinoMed databases, the China National Knowledge Infrastructure, and the Vip Journal Integration Platform were searched from their inception to April 2023 for animal experiments applying quercetin to treat SCI. STUDY SELECTION Based on the PICOS criteria, a total of 18 eligible studies were included, of which 14 were high quality. RESULTS In this study, there was a gradual increase in effect based on the Basso, Beattie, and Bresnahan (BBB) score after three days (p < 0.0001). Furthermore, gender differences also appeared in the efficacy of quercetin; males performed better than females (p = 0.008). Quercetin was also associated with improved inclined plane test score (p = 0.008). In terms of biochemical indicators, meta-analysis showed that MDA (p < 0.0001) and MPO (p = 0.0002) were significantly reduced after quercetin administration compared with the control group, and SOD levels were increased (p = 0.004). Mechanistically, quercetin facilitates the inhibition of oxidative stress, inflammation, autophagy and apoptosis that occur after SCI. CONCLUSIONS Generally, this systematic review suggests that quercetin has a neuroprotective effect on SCI.
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Affiliation(s)
- Ke Zhu
- Spine Disease Institute, Longhua Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai, People's Republic of China
- Key Laboratory of Theory and Therapy of Muscles and Bones, Ministry of Education, Shanghai University of Traditional Chinese Medicine, Shanghai, People's Republic of China
| | - Zhong Zheng
- Spine Disease Institute, Longhua Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai, People's Republic of China
- Key Laboratory of Theory and Therapy of Muscles and Bones, Ministry of Education, Shanghai University of Traditional Chinese Medicine, Shanghai, People's Republic of China
| | - Ya-Yun Zhang
- Spine Disease Institute, Longhua Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai, People's Republic of China
- Key Laboratory of Theory and Therapy of Muscles and Bones, Ministry of Education, Shanghai University of Traditional Chinese Medicine, Shanghai, People's Republic of China
| | - Zhuo-Yao Li
- Spine Disease Institute, Longhua Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai, People's Republic of China
- Key Laboratory of Theory and Therapy of Muscles and Bones, Ministry of Education, Shanghai University of Traditional Chinese Medicine, Shanghai, People's Republic of China
| | - Ai-Fang Zhou
- Spine Disease Institute, Longhua Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai, People's Republic of China
- Key Laboratory of Theory and Therapy of Muscles and Bones, Ministry of Education, Shanghai University of Traditional Chinese Medicine, Shanghai, People's Republic of China
| | - Cai-Wei Hu
- Spine Disease Institute, Longhua Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai, People's Republic of China
- Key Laboratory of Theory and Therapy of Muscles and Bones, Ministry of Education, Shanghai University of Traditional Chinese Medicine, Shanghai, People's Republic of China
| | - Bing Shu
- Spine Disease Institute, Longhua Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai, People's Republic of China
- Key Laboratory of Theory and Therapy of Muscles and Bones, Ministry of Education, Shanghai University of Traditional Chinese Medicine, Shanghai, People's Republic of China
| | - Long-Yun Zhou
- Rehabilitation Medicine Center, Jiangsu Provincial People's Hospital, Jiangsu, People's Republic of China
| | - Qi Shi
- Spine Disease Institute, Longhua Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai, People's Republic of China
- Key Laboratory of Theory and Therapy of Muscles and Bones, Ministry of Education, Shanghai University of Traditional Chinese Medicine, Shanghai, People's Republic of China
| | - Yong-Jun Wang
- Spine Disease Institute, Longhua Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai, People's Republic of China
- Key Laboratory of Theory and Therapy of Muscles and Bones, Ministry of Education, Shanghai University of Traditional Chinese Medicine, Shanghai, People's Republic of China
| | - Min Yao
- Spine Disease Institute, Longhua Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai, People's Republic of China
- Key Laboratory of Theory and Therapy of Muscles and Bones, Ministry of Education, Shanghai University of Traditional Chinese Medicine, Shanghai, People's Republic of China
| | - Xue-Jun Cui
- Spine Disease Institute, Longhua Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai, People's Republic of China
- Key Laboratory of Theory and Therapy of Muscles and Bones, Ministry of Education, Shanghai University of Traditional Chinese Medicine, Shanghai, People's Republic of China
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25
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Peng B, Hu J, Sun Y, Huang Y, Peng Q, Zhao W, Xu W, Zhu L. Tangeretin alleviates inflammation and oxidative response induced by spinal cord injury by activating the Sesn2/Keap1/Nrf2 pathway. Phytother Res 2024. [PMID: 39054118 DOI: 10.1002/ptr.8294] [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: 11/25/2023] [Revised: 04/29/2024] [Accepted: 07/07/2024] [Indexed: 07/27/2024]
Abstract
Spinal cord injury (SCI) is a severe disabling disease that is characterized by inflammation and oxidative reactions. Tangeretin has been shown to possess significant antioxidant and anti-inflammatory activities. The Keap1/Nrf2 pathway, downstream of the Sesn2 gene, is involved in regulating the inflammation and oxidative response. The main objective of this study was to investigate the effect of tangeretin on SCI and its possible mechanism through cell and animal models. A T9 clamp injury was used for the mouse model and the LPS-induced stimulation of BV-2 cells was used for the cell model. The improvement of motor function after SCI was assessed by open field, swimming, and footprint experiments. The morphological characteristics of mouse spinal cord tissue and the levels of INOS, Sesn2, TNF-α, Keap1, Nrf2, IL-10, and reactive oxygen species (ROS) in vivo and in vitro were measured by several methods including western blotting, qPCR, immunofluorescence, HE, and Nissl staining. In vivo data showed that tangeretin can improve motor function recovery and reduce neuron loss and injury size in mice with SCI. Simultaneously, the in vitro findings suggested that treatment of BV-2 cells with tangeretin after LPS stimulation reduced the production of inflammatory factors and ROS, and could convert BV-2 cells from the M1 to the M2 type. Furthermore, Sesn2 knockout suppressed Keap1/Nrf2, inflammatory factors, ROS levels, and the M1 to M2 transition. Tangeretin can alleviate the inflammation and oxidative response induced by SCI by activating the Sesn2/Keap1/Nrf2 pathway.
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Affiliation(s)
- Birong Peng
- Department of Spinal Surgery, Orthopedic Medical Center, Zhujiang Hospital, Southern Medical University, Guangzhou, China
| | - Jinwei Hu
- Department of Spinal Surgery, Orthopedic Medical Center, Zhujiang Hospital, Southern Medical University, Guangzhou, China
| | - Yuanfang Sun
- Department of Spinal Surgery, Orthopedic Medical Center, Zhujiang Hospital, Southern Medical University, Guangzhou, China
| | - Yating Huang
- Department of Endocrinology, Zhujiang Hospital, Southern Medical University, Guangzhou, China
| | - Qingshan Peng
- Department of Spinal Surgery, Orthopedic Medical Center, Zhujiang Hospital, Southern Medical University, Guangzhou, China
| | - Weiwen Zhao
- Department of Orthopedics, Hunan Provincial People's Hospital, Hunan Normal University, Changsha, Hunan Province, China
| | - Wenning Xu
- Department of Spinal Surgery, Orthopedic Medical Center, Zhujiang Hospital, Southern Medical University, Guangzhou, China
| | - Lixin Zhu
- Department of Spinal Surgery, Orthopedic Medical Center, Zhujiang Hospital, Southern Medical University, Guangzhou, China
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Rahimi Darehbagh R, Seyedoshohadaei SA, Ramezani R, Rezaei N. Stem cell therapies for neurological disorders: current progress, challenges, and future perspectives. Eur J Med Res 2024; 29:386. [PMID: 39054501 PMCID: PMC11270957 DOI: 10.1186/s40001-024-01987-1] [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: 05/29/2024] [Accepted: 07/17/2024] [Indexed: 07/27/2024] Open
Abstract
Stem cell-based therapies have emerged as a promising approach for treating various neurological disorders by harnessing the regenerative potential of stem cells to restore damaged neural tissue and circuitry. This comprehensive review provides an in-depth analysis of the current state of stem cell applications in primary neurological conditions, including Parkinson's disease (PD), Alzheimer's disease (AD), amyotrophic lateral sclerosis (ALS), multiple sclerosis (MS), stroke, spinal cord injury (SCI), and other related disorders. The review begins with a detailed introduction to stem cell biology, discussing the types, sources, and mechanisms of action of stem cells in neurological therapies. It then critically examines the preclinical evidence from animal models and early human trials investigating the safety, feasibility, and efficacy of different stem cell types, such as embryonic stem cells (ESCs), mesenchymal stem cells (MSCs), neural stem cells (NSCs), and induced pluripotent stem cells (iPSCs). While ESCs have been studied extensively in preclinical models, clinical trials have primarily focused on adult stem cells such as MSCs and NSCs, as well as iPSCs and their derivatives. We critically assess the current state of research for each cell type, highlighting their potential applications and limitations in different neurological conditions. The review synthesizes key findings from recent, high-quality studies for each neurological condition, discussing cell manufacturing, delivery methods, and therapeutic outcomes. While the potential of stem cells to replace lost neurons and directly reconstruct neural circuits is highlighted, the review emphasizes the critical role of paracrine and immunomodulatory mechanisms in mediating the therapeutic effects of stem cells in most neurological disorders. The article also explores the challenges and limitations associated with translating stem cell therapies into clinical practice, including issues related to cell sourcing, scalability, safety, and regulatory considerations. Furthermore, it discusses future directions and opportunities for advancing stem cell-based treatments, such as gene editing, biomaterials, personalized iPSC-derived therapies, and novel delivery strategies. The review concludes by emphasizing the transformative potential of stem cell therapies in revolutionizing the treatment of neurological disorders while acknowledging the need for rigorous clinical trials, standardized protocols, and multidisciplinary collaboration to realize their full therapeutic promise.
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Affiliation(s)
- Ramyar Rahimi Darehbagh
- Student Research Committee, Kurdistan University of Medical Sciences, Sanandaj, Iran
- Nanoclub Elites Association, Tehran, Iran
- Cellular and Molecular Research Center, Research Institute for Health Development, Kurdistan University of Medical Sciences, Sanandaj, Iran
- Universal Scientific Education and Research Network (USERN), Sanandaj, Kurdistan, Iran
| | | | - Rojin Ramezani
- Student Research Committee, Kurdistan University of Medical Sciences, Sanandaj, Iran
| | - Nima Rezaei
- Network of Immunity in Infection, Malignancy and Autoimmunity (NIIMA), Universal Scientific Education and Research Network (USERN), Tehran, Iran.
- Research Center for Immunodeficiencies, Children's Medical Center, Tehran University of Medical Sciences, Dr. Qarib St, Keshavarz Blvd, Tehran, 14194, Iran.
- Department of Immunology, School of Medicine, Tehran University of Medical Sciences, Tehran, Iran.
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Liu R, Jiang L, Chen Y, Shao J, Chen K, Li X, Lv J, Cai W, Cai H, Zhu Z, Wang C, Zhou K, Huang J, Xiao J, Ni W, Wu C. Ginsenoside-Rh2 Promotes Functional Recovery after Spinal Cord Injury by Enhancing TFEB-Mediated Autophagy. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2024; 72:14727-14746. [PMID: 38907713 DOI: 10.1021/acs.jafc.4c02379] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/24/2024]
Abstract
Background: Following spinal cord injury (SCI), autophagy plays a positive role in neuronal protection, whereas pyroptosis triggers an inflammatory response. Ginsenoside-Rh2 (GRh2), known for its neuroprotective effects, is considered a promising drug. However, the exact molecular mechanisms underlying these protective effects remain unclear. Aim of the Study: Explore the therapeutic value of GRh2 in SCI and its potential mechanisms of action. Materials and Methods: An SCI mouse model was established, followed by random grouping and drug treatments under different conditions. Subsequently, the functional recovery of SCI mice after GRh2 treatment was assessed using hematoxylin and eosin, Masson's trichrome, and Nissl staining, footprint analysis, Basso Mouse Scale scoring, and inclined plane tests. The expression levels of relevant indicators in the mice were detected using Western blotting, immunofluorescence, and a quantitative polymerase chain reaction. Network pharmacology analysis was used to identify the relevant signaling pathways through which GRh2 exerts its therapeutic effects. Results: GRh2 promoted functional recovery after SCI. GRh2 significantly inhibits pyroptosis by enhancing autophagy in SCI mice. Simultaneously, the neuroprotective effect of GRh2, achieved through the inhibition of pyroptosis, is partially reversed by 3-methyladenine, an autophagy inhibitor. Additionally, the increase in autophagy induced by GRh2 is mediated by the promotion of transcription factor EB (TFEB) nuclear translocation and dephosphorylation. Partial attenuation of the protective effects of GRh2 was observed after TFEB knockdown. Additionally, GRh2 can modulate the activity of TFEB in mice post-SCI through the EGFR-MAPK signaling pathway, and NSC228155 (an EGFR activator) can partially reverse the effect of GRh2 on the EGFR-MAPK signaling pathway. Conclusions: GRh2 improves functional recovery after SCI by upregulating TFEB-mediated autophagic flux and inhibiting pyroptosis, indicating its potential clinical applicability.
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Affiliation(s)
- Rongjie Liu
- Department of Orthopaedics, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou 325027, China
- Zhejiang Provincial Key Laboratory of Orthopaedics, Wenzhou 325027, China
- The Second Clinical Medical College of Wenzhou Medical University, Wenzhou 325027, China
| | - Liting Jiang
- Department of Orthopaedics, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou 325027, China
- Zhejiang Provincial Key Laboratory of Orthopaedics, Wenzhou 325027, China
- The Second Clinical Medical College of Wenzhou Medical University, Wenzhou 325027, China
| | - Yituo Chen
- Department of Orthopaedics, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou 325027, China
- Zhejiang Provincial Key Laboratory of Orthopaedics, Wenzhou 325027, China
- The Second Clinical Medical College of Wenzhou Medical University, Wenzhou 325027, China
| | - Jiaqin Shao
- School of Pharmaceutical Sciences, Wenzhou Medical University, Wenzhou 325035, China
| | - Kongbin Chen
- Department of Orthopaedics, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou 325027, China
- Zhejiang Provincial Key Laboratory of Orthopaedics, Wenzhou 325027, China
- The Second Clinical Medical College of Wenzhou Medical University, Wenzhou 325027, China
| | - Xiang Li
- Department of Orthopaedics, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou 325027, China
- Zhejiang Provincial Key Laboratory of Orthopaedics, Wenzhou 325027, China
- The Second Clinical Medical College of Wenzhou Medical University, Wenzhou 325027, China
| | - Junlei Lv
- Department of Orthopaedics, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou 325027, China
- Zhejiang Provincial Key Laboratory of Orthopaedics, Wenzhou 325027, China
- The Second Clinical Medical College of Wenzhou Medical University, Wenzhou 325027, China
| | - Wanta Cai
- Department of Orthopaedics, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou 325027, China
- Zhejiang Provincial Key Laboratory of Orthopaedics, Wenzhou 325027, China
- The Second Clinical Medical College of Wenzhou Medical University, Wenzhou 325027, China
| | - Haoxu Cai
- Department of Orthopaedics, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou 325027, China
- Zhejiang Provincial Key Laboratory of Orthopaedics, Wenzhou 325027, China
- The Second Clinical Medical College of Wenzhou Medical University, Wenzhou 325027, China
| | - Zhefan Zhu
- Department of Orthopaedics, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou 325027, China
- Zhejiang Provincial Key Laboratory of Orthopaedics, Wenzhou 325027, China
- The Second Clinical Medical College of Wenzhou Medical University, Wenzhou 325027, China
| | - Chenggui Wang
- Department of Orthopaedics, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou 325027, China
- Zhejiang Provincial Key Laboratory of Orthopaedics, Wenzhou 325027, China
- The Second Clinical Medical College of Wenzhou Medical University, Wenzhou 325027, China
| | - Kailiang Zhou
- Department of Orthopaedics, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou 325027, China
- Zhejiang Provincial Key Laboratory of Orthopaedics, Wenzhou 325027, China
- The Second Clinical Medical College of Wenzhou Medical University, Wenzhou 325027, China
| | - Jinfeng Huang
- Department of Orthopaedics, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou 325027, China
- Zhejiang Provincial Key Laboratory of Orthopaedics, Wenzhou 325027, China
- The Second Clinical Medical College of Wenzhou Medical University, Wenzhou 325027, China
| | - Jian Xiao
- School of Pharmaceutical Sciences, Wenzhou Medical University, Wenzhou 325035, China
| | - Wenfei Ni
- Department of Orthopaedics, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou 325027, China
- Zhejiang Provincial Key Laboratory of Orthopaedics, Wenzhou 325027, China
- The Second Clinical Medical College of Wenzhou Medical University, Wenzhou 325027, China
| | - Chenyu Wu
- Department of Orthopaedics, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou 325027, China
- Zhejiang Provincial Key Laboratory of Orthopaedics, Wenzhou 325027, China
- The Second Clinical Medical College of Wenzhou Medical University, Wenzhou 325027, China
- School of Pharmaceutical Sciences, Wenzhou Medical University, Wenzhou 325035, China
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Shipman H, Monsour M, Foley MM, Marbacher S, Croci DM, Bisson EF. Interleukin-6 in Spinal Cord Injury: Could Immunomodulation Replace Immunosuppression in the Management of Acute Traumatic Spinal Cord Injuries? J Neurol Surg A Cent Eur Neurosurg 2024. [PMID: 37328147 DOI: 10.1055/a-2111-5698] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/18/2023]
Abstract
Traumatic spinal cord injuries (SCI) result in devastating impairment to an individual's functional ability. The pathophysiology of SCI is related to primary injury but further propagated by secondary reactions to injury, such as inflammation and oxidation. The inflammatory and oxidative cascades ultimately cause demyelination and Wallerian degeneration. Currently, no treatments are available to treat primary or secondary injury in SCI, but some studies have shown promising results by lessening secondary mechanisms of injury. Interleukins (ILs) have been described as key players in the inflammation cascade after neuronal injury; however, their role and possible inhibition in the context of acute traumatic SCIs have not been widely studied. Here, we review the relationship between SCI and IL-6 concentrations in the CSF and serum of individuals after traumatic SCIs. Furthermore, we explore the dual IL-6 signaling pathways and their relevance for future IL-6 targeted therapies in SCI.
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Affiliation(s)
- Hank Shipman
- Department of Internal Medicine, University of Utah, Salt Lake City, Utah, United States
| | - Molly Monsour
- University of South Florida Morsani College of Medicine, Tampa, Florida, United States
| | - Madeline M Foley
- Department of Internal Medicine, University of Utah, Salt Lake City, Utah, United States
| | - Serge Marbacher
- Department of Neurosurgery, Kantonsspital Aarau, Aarau, Switzerland
| | - Davide M Croci
- Department of Neurosurgery, Clinical Neurosciences Center, University of Utah, Salt Lake City, Utah, United States
- Department of Neurosurgery and Brain Repair, University of South Florida, Tampa, Florida, United States
| | - Erica F Bisson
- Department of Neurosurgery, Clinical Neurosciences Center, University of Utah, Salt Lake City, Utah, United States
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29
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Ding Y, Chen Q. Recent advances on signaling pathways and their inhibitors in spinal cord injury. Biomed Pharmacother 2024; 176:116938. [PMID: 38878684 DOI: 10.1016/j.biopha.2024.116938] [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: 04/12/2024] [Revised: 05/27/2024] [Accepted: 06/10/2024] [Indexed: 06/20/2024] Open
Abstract
Spinal cord injury (SCI) is a serious and disabling central nervous system injury. Its complex pathological mechanism can lead to sensory and motor dysfunction. It has been reported that signaling pathway plays a key role in the pathological process and neuronal recovery mechanism of SCI. Such as PI3K/Akt, MAPK, NF-κB, and Wnt/β-catenin signaling pathways. According to reports, various stimuli and cytokines activate these signaling pathways related to SCI pathology, thereby participating in the regulation of pathological processes such as inflammation response, cell apoptosis, oxidative stress, and glial scar formation after injury. Activation or inhibition of relevant pathways can delay inflammatory response, reduce neuronal apoptosis, prevent glial scar formation, improve the microenvironment after SCI, and promote neural function recovery. Based on the role of signaling pathways in SCI, they may be potential targets for the treatment of SCI. Therefore, understanding the signaling pathway and its inhibitors may be beneficial to the development of SCI therapeutic targets and new drugs. This paper mainly summarizes the pathophysiological process of SCI, the signaling pathways involved in SCI pathogenesis, and the potential role of specific inhibitors/activators in its treatment. In addition, this review also discusses the deficiencies and defects of signaling pathways in SCI research. It is hoped that this study can provide reference for future research on signaling pathways in the pathogenesis of SCI and provide theoretical basis for SCI biotherapy.
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Affiliation(s)
- Yi Ding
- Department of Spine Surgery, Ganzhou People's Hospital,16 Meiguan Avenue, Ganzhou, Jiangxi Province 341000, PR China; Department of Spine Surgery, The Affiliated Ganzhou Hospital of Nanchang University (Ganzhou Hospital-Nanfang Hospital, Southern Medical University),16 Meiguan Avenue, Ganzhou, Jiangxi Province 341000, PR China
| | - Qin Chen
- Department of Spine Surgery, Ganzhou People's Hospital,16 Meiguan Avenue, Ganzhou, Jiangxi Province 341000, PR China; Department of Spine Surgery, The Affiliated Ganzhou Hospital of Nanchang University (Ganzhou Hospital-Nanfang Hospital, Southern Medical University),16 Meiguan Avenue, Ganzhou, Jiangxi Province 341000, PR China.
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30
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Zhang N, Zhang S, Dong X. Plant-derived bioactive compounds and their novel role in central nervous system disorder treatment via ATF4 targeting: A systematic literature review. Biomed Pharmacother 2024; 176:116811. [PMID: 38795641 DOI: 10.1016/j.biopha.2024.116811] [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: 03/30/2024] [Revised: 05/18/2024] [Accepted: 05/20/2024] [Indexed: 05/28/2024] Open
Abstract
Central nervous system (CNS) disorders exhibit exceedingly intricate pathogenic mechanisms. Pragmatic and effective solutions remain elusive, significantly compromising human life and health. Activating transcription factor 4 (ATF4) participates in the regulation of multiple pathophysiological processes, including CNS disorders. Considering the widespread involvement of ATF4 in the pathological process of CNS disorders, the targeted regulation of ATF4 by plant-derived bioactive compounds (PDBCs) may become a viable strategy for the treatment of CNS disorders. However, the regulatory relationship between PDBCs and ATF4 remains incompletely understood. Here, we aimed to comprehensively review the studies on PDBCs targeting ATF4 to ameliorate CNS disorders, thereby offering novel directions and insights for the treatment of CNS disorders. A computerized search was conducted on PubMed, Embase, Web of Science, and Google Scholar databases to identify preclinical experiments related to PDBCs targeting ATF4 for the treatment of CNS disorders. The search timeframe was from the inception of the databases to December 2023. Two assessors conducted searches using the keywords "ATF4," "Central Nervous System," "Neurological," "Alzheimer's disease," "Parkinson's Disease," "Stroke," "Spinal Cord Injury," "Glioblastoma," "Traumatic Brain Injury," and "Spinal Cord Injury." Overall, 31 studies were included, encompassing assessments of 27 PDBCs. Combining results from in vivo and in vitro studies, we observed that these PDBCs, via ATF4 modulation, prevent the deposition of amyloid-like fibers such as Aβ, tau, and α-synuclein. They regulate ERS, reduce the release of inflammatory factors, restore mitochondrial membrane integrity to prevent oxidative stress, regulate synaptic plasticity, modulate autophagy, and engage anti-apoptotic mechanisms. Consequently, they exert neuroprotective effects in CNS disorders. Numerous PDBCs targeting ATF4 have shown potential in facilitating the restoration of CNS functionality, thereby presenting expansive prospects for the treatment of such disorders. However, future endeavors necessitate high-quality, large-scale, and comprehensive preclinical and clinical studies to further validate this therapeutic potential.
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Affiliation(s)
- Nan Zhang
- Department of Neurology, the Seventh Clinical College of China Medical University, No. 24 Central Street, Xinfu District, Fushun, Liaoning 113000, China
| | - Shun Zhang
- Department of Neurology, Shengjing Hospital of China Medical University, No. 36 Sanhao street, Heping District, Shenyang, Liaoning 110000, China
| | - Xiaoyu Dong
- Department of Neurology, Shengjing Hospital of China Medical University, No. 36 Sanhao street, Heping District, Shenyang, Liaoning 110000, China.
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31
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Gao X, Li Q, Hao J, Sun K, Feng H, Guo K, Gao C. Therapeutic effects of exendin-4 on spinal cord injury via restoring autophagy function and decreasing necroptosis in neuron. CNS Neurosci Ther 2024; 30:e14835. [PMID: 39004783 PMCID: PMC11246977 DOI: 10.1111/cns.14835] [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: 02/02/2024] [Revised: 06/07/2024] [Accepted: 06/18/2024] [Indexed: 07/16/2024] Open
Abstract
AIMS Necroptosis is one of programmed death that may aggravate spinal cord injury (SCI). We aimed to investigate the effect and mechanism of exendin-4 (EX-4) on the recovery of motor function and necroptosis after SCI. METHODS The SD rats with left hemisection in the T10 spinal cord as SCI model were used. The behavior tests were measured within 4 weeks. The effects of EX-4 on necroptosis-associated proteins and autophagy flux were explored. In addition, the SHSY5Y cell model was introduced to explore the direct effect of EX-4 on neurons. The effect of lysosome was explored using mTOR activator and AO staining. RESULTS EX-4 could improve motor function and limb strength, promote the recovery of autophagy flux, and accelerate the degradation of necroptosis-related protein at 3 d after injury in rats. EX-4 reduced lysosome membrane permeability, promoted the recovery of lysosome function and autophagy flux, and accelerated the degradation of necroptosis-related proteins by inhibiting the phosphorylation level of mTOR in the SHSY5Y cell model. CONCLUSION Our results demonstrated that EX-4 may improve motor function after SCI via inhibiting mTOR phosphorylation level and accelerating the degradation of necroptosis-related proteins in neurons. Our findings may provide new therapeutic targets for clinical treatment after SCI.
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Affiliation(s)
- Xiao Gao
- Nanjing Medical UniversityNanjingChina
- Department of OrthopedicsThe Affiliated Hospital of Xuzhou Medical University, Xuzhou Medical UniversityXuzhouChina
| | - Qu‐Peng Li
- Department of OrthopedicsThe Affiliated Hospital of Xuzhou Medical University, Xuzhou Medical UniversityXuzhouChina
| | - Jing‐Ru Hao
- NMPA Key Laboratory for Research and Evaluation of Narcotic and Psychotropic Drugs, Jiangsu Province Key Laboratory of Anesthesiology, Jiangsu Province Key Laboratory of Anesthesia and Analgesia ApplicationXuzhou Medical UniversityXuzhouChina
| | - Kai Sun
- Nanjing Medical UniversityNanjingChina
- NMPA Key Laboratory for Research and Evaluation of Narcotic and Psychotropic Drugs, Jiangsu Province Key Laboratory of Anesthesiology, Jiangsu Province Key Laboratory of Anesthesia and Analgesia ApplicationXuzhou Medical UniversityXuzhouChina
| | - Hu Feng
- Department of OrthopedicsThe Affiliated Hospital of Xuzhou Medical University, Xuzhou Medical UniversityXuzhouChina
| | - Kai‐Jin Guo
- Nanjing Medical UniversityNanjingChina
- Department of OrthopedicsThe Affiliated Hospital of Xuzhou Medical University, Xuzhou Medical UniversityXuzhouChina
| | - Can Gao
- Nanjing Medical UniversityNanjingChina
- NMPA Key Laboratory for Research and Evaluation of Narcotic and Psychotropic Drugs, Jiangsu Province Key Laboratory of Anesthesiology, Jiangsu Province Key Laboratory of Anesthesia and Analgesia ApplicationXuzhou Medical UniversityXuzhouChina
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Wang X, Cheng Z, Tai W, Shi M, Ayazi M, Liu Y, Sun L, Yu C, Fan Z, Guo B, He X, Sun D, Young W, Ren Y. Targeting foamy macrophages by manipulating ABCA1 expression to facilitate lesion healing in the injured spinal cord. Brain Behav Immun 2024; 119:431-453. [PMID: 38636566 DOI: 10.1016/j.bbi.2024.04.013] [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: 07/02/2023] [Revised: 04/03/2024] [Accepted: 04/16/2024] [Indexed: 04/20/2024] Open
Abstract
Spinal cord injury (SCI) triggers a complex cascade of events, including myelin loss, neuronal damage, neuroinflammation, and the accumulation of damaged cells and debris at the injury site. Infiltrating bone marrow derived macrophages (BMDMϕ) migrate to the epicenter of the SCI lesion, where they engulf cell debris including abundant myelin debris to become pro-inflammatory foamy macrophages (foamy Mϕ), participate neuroinflammation, and facilitate the progression of SCI. This study aimed to elucidate the cellular and molecular mechanisms underlying the functional changes in foamy Mϕ and their potential implications for SCI. Contusion at T10 level of the spinal cord was induced using a New York University (NYU) impactor (5 g rod from a height of 6.25 mm) in male mice. ABCA1, an ATP-binding cassette transporter expressed by Mϕ, plays a crucial role in lipid efflux from foamy cells. We observed that foamy Mϕ lacking ABCA1 exhibited increased lipid accumulation and a higher presence of lipid-accumulated foamy Mϕ as well as elevated pro-inflammatory response in vitro and in injured spinal cord. We also found that both genetic and pharmacological enhancement of ABCA1 expression accelerated lipid efflux from foamy Mϕ, reduced lipid accumulation and inhibited the pro-inflammatory response of foamy Mϕ, and accelerated clearance of cell debris and necrotic cells, which resulted in functional recovery. Our study highlights the importance of understanding the pathologic role of foamy Mϕ in SCI progression and the potential of ABCA1 as a therapeutic target for modulating the inflammatory response, promoting lipid metabolism, and facilitating functional recovery in SCI.
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Affiliation(s)
- Xi Wang
- W. M. Keck Center for Collaborative Neuroscience, Rutgers, State University of New Jersey, New Brunswick, NJ 08854, USA; Institute of Neurosciences, Fourth Military Medical University, Xi'an 710032, China; College of Life Sciences and Medicine, Northwest University, Xi'an 710069, China.
| | - Zhijian Cheng
- Department of Biomedical Sciences, Florida State University College of Medicine, 1115 West Call Street, Tallahassee, FL 32306, USA
| | - Wenjiao Tai
- Department of Biomedical Sciences, Florida State University College of Medicine, 1115 West Call Street, Tallahassee, FL 32306, USA
| | - Mingjun Shi
- Department of Biomedical Sciences, Florida State University College of Medicine, 1115 West Call Street, Tallahassee, FL 32306, USA
| | - Maryam Ayazi
- Department of Biomedical Sciences, Florida State University College of Medicine, 1115 West Call Street, Tallahassee, FL 32306, USA
| | - Yang Liu
- Department of Biomedical Sciences, Florida State University College of Medicine, 1115 West Call Street, Tallahassee, FL 32306, USA
| | - Li Sun
- Department of Biomedical Sciences, Florida State University College of Medicine, 1115 West Call Street, Tallahassee, FL 32306, USA
| | - Caiyong Yu
- Institute of Neurosciences, Fourth Military Medical University, Xi'an 710032, China
| | - Zhongmin Fan
- Department of Critical Care Medicine and Department of Anesthesiology and Perioperative Medicine, Xijing Hospital, Xi'an 710032, China
| | - Bin Guo
- Department of Pathology, Guizhou Medical University, Guiyang 550025, China
| | - Xijing He
- Department of Orthopedics, Second Affiliated Hospital of Xi'an Jiaotong University, Xi'an 710004, China
| | - Dongming Sun
- W. M. Keck Center for Collaborative Neuroscience, Rutgers, State University of New Jersey, New Brunswick, NJ 08854, USA
| | - Wise Young
- W. M. Keck Center for Collaborative Neuroscience, Rutgers, State University of New Jersey, New Brunswick, NJ 08854, USA
| | - Yi Ren
- W. M. Keck Center for Collaborative Neuroscience, Rutgers, State University of New Jersey, New Brunswick, NJ 08854, USA; Department of Biomedical Sciences, Florida State University College of Medicine, 1115 West Call Street, Tallahassee, FL 32306, USA.
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33
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Wang J, Lin Y, Li C, Lei F, Luo H, Jing P, Fu Y, Zhang Z, Wang C, Liu Z, Jiang J, Zhou M, Du X, Liu Z, Zhou X, Sun X, Zhong Z. Zein-Based Triple-Drug Nanoparticles to Promote Anti-Inflammatory Responses for Nerve Regeneration after Spinal Cord Injury. Adv Healthc Mater 2024; 13:e2304261. [PMID: 38482944 DOI: 10.1002/adhm.202304261] [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: 12/01/2023] [Revised: 03/03/2024] [Indexed: 03/22/2024]
Abstract
Defects in autophagy contribute to neurological deficits and motor dysfunction after spinal cord injury. Here a nanosystem is developed to deliver autophagy-promoting, anti-inflammatory drugs to nerve cells in the injured spinal cord. Celastrol, metformin, and everolimus as the mTOR inhibitor are combined into the zein-based nanoparticles, aiming to solubilize the drugs and prolong their circulation. The nanoparticles are internalized by BV2 microglia and SH-SY5Y neuron-like cells in culture; they inhibit the secretion of inflammatory factors by BV2 cells after insult with lipopolysaccharide, and they protect SH-SY5Y cells from the toxicity of H2O2. In a rat model of spinal cord injury, the nanoparticles mitigate inflammation and promote spinal cord repair. In the in vitro and in vivo experiments, the complete nanoparticles function better than the free drugs or nanoparticles containing only one or two drugs. These results suggest that the triple-drug nanoparticles show promise for treating spinal cord injury.
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Affiliation(s)
- Jingxuan Wang
- Key Laboratory of Medical Electrophysiology, Ministry of Education, School of Pharmacy, Southwest Medical University, Luzhou, Sichuan, 646000, China
| | - Yan Lin
- Key Laboratory of Medical Electrophysiology, Ministry of Education, School of Pharmacy, Southwest Medical University, Luzhou, Sichuan, 646000, China
| | - Chunhan Li
- Key Laboratory of Medical Electrophysiology, Ministry of Education, School of Pharmacy, Southwest Medical University, Luzhou, Sichuan, 646000, China
| | - Fei Lei
- Department of Spine Surgery, The Affiliated Hospital, Southwest Medical University, Luzhou, Sichuan, 646000, China
| | - Hongli Luo
- Department of Pharmacy, The Affiliated Hospital, Southwest Medical University, Luzhou, Sichuan, 646000, China
| | - Pei Jing
- Department of Pharmacy, The Affiliated Hospital, Southwest Medical University, Luzhou, Sichuan, 646000, China
| | - Yao Fu
- West China School of Pharmacy, Sichuan University, Chengdu, Sichuan, 610041, China
| | - Zhirong Zhang
- West China School of Pharmacy, Sichuan University, Chengdu, Sichuan, 610041, China
| | | | - Zerong Liu
- Central Nervous System Drug Key Laboratory of Sichuan Province, Luzhou, Sichuan, 646000, China
| | - Jun Jiang
- Department of General Surgery (Thyroid Surgery), The Affiliated Hospital of Southwest Medical University, Luzhou, Sichuan, 646000, China
| | - Meiling Zhou
- Department of Spine Surgery, The Affiliated Hospital, Southwest Medical University, Luzhou, Sichuan, 646000, China
| | - Xingjie Du
- Key Laboratory of Medical Electrophysiology, Ministry of Education, School of Pharmacy, Southwest Medical University, Luzhou, Sichuan, 646000, China
| | - Zhongbing Liu
- Key Laboratory of Medical Electrophysiology, Ministry of Education, School of Pharmacy, Southwest Medical University, Luzhou, Sichuan, 646000, China
| | - Xiangyu Zhou
- Department of Thyroid and Vascular Surgery, The Affiliated Hospital of Southwest Medical University, Luzhou, Sichuan, 646000, China
| | - Xiaoduan Sun
- Department of Spine Surgery, The Affiliated Hospital, Southwest Medical University, Luzhou, Sichuan, 646000, China
| | - Zhirong Zhong
- Key Laboratory of Medical Electrophysiology, Ministry of Education, School of Pharmacy, Southwest Medical University, Luzhou, Sichuan, 646000, China
- Central Nervous System Drug Key Laboratory of Sichuan Province, Luzhou, Sichuan, 646000, China
- Key Laboratory of Luzhou City for Aging Medicine, Department of Pharmacology, School of Pharmacy, Southwest Medical University, Luzhou, Sichuan, 646000, China
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Lin K, Zhang Y, Shen Y, Xu Y, Huang M, Liu X. Hydrogen Sulfide can Scavenge Free Radicals to Improve Spinal Cord Injury by Inhibiting the p38MAPK/mTOR/NF-κB Signaling Pathway. Neuromolecular Med 2024; 26:26. [PMID: 38907170 DOI: 10.1007/s12017-024-08794-1] [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: 04/21/2024] [Accepted: 05/31/2024] [Indexed: 06/23/2024]
Abstract
Spinal cord injury (SCI) causes irreversible cell loss and neurological dysfunctions. Presently, there is no an effective clinical treatment for SCI. It can be the only intervention measure by relieving the symptoms of patients such as pain and fever. Free radical-induced damage is one of the validated mechanisms in the complex secondary injury following primary SCI. Hydrogen sulfide (H2S) as an antioxidant can effectively scavenge free radicals, protect neurons, and improve SCI by inhibiting the p38MAPK/mTOR/NF-κB signaling pathway. In this report, we analyze the pathological mechanism of SCI, the role of free radical-mediated the p38MAPK/mTOR/NF-κB signaling pathway in SCI, and the role of H2S in scavenging free radicals and improving SCI.
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Affiliation(s)
- Kexin Lin
- Department of Histology and Embryology, School of Medicine, Shaoxing University, Shaoxing, 312000, Zhejiang Province, China
| | - Yong Zhang
- Department of Histology and Embryology, School of Medicine, Shaoxing University, Shaoxing, 312000, Zhejiang Province, China
| | - Yanyang Shen
- Department of Histology and Embryology, School of Medicine, Shaoxing University, Shaoxing, 312000, Zhejiang Province, China
| | - Yiqin Xu
- Department of Histology and Embryology, School of Medicine, Shaoxing University, Shaoxing, 312000, Zhejiang Province, China
| | - Min Huang
- Department of Histology and Embryology, School of Medicine, Shaoxing University, Shaoxing, 312000, Zhejiang Province, China
| | - Xuehong Liu
- Department of Histology and Embryology, School of Medicine, Shaoxing University, Shaoxing, 312000, Zhejiang Province, China.
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Zhu R, Zhang Y, He W, Sun Y, Zhao X, Yan Y, Zhang Q. Wogonoside alleviates microglia-mediated neuroinflammation via TLR4/MyD88/NF-κB signaling axis after spinal cord injury. Eur J Pharmacol 2024; 973:176566. [PMID: 38636801 DOI: 10.1016/j.ejphar.2024.176566] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/27/2023] [Revised: 03/04/2024] [Accepted: 04/03/2024] [Indexed: 04/20/2024]
Abstract
Wogonoside (WG) is a natural flavonoid extracted from Scutellariae Radix, recognized for its established anti-inflammatory properties. However, the role of WG in the context of neuroinflammation after spinal cord injury (SCI) remains inadequately elucidated. This study employed in silico, in vitro, and in vivo methodologies to investigate the impact of WG on microglia-mediated neuroinflammation after SCI. In the in silico experiment, we identified 15 potential target genes of WG associated with SCI. These genes were linked to the regulation of inflammatory response and immune defense. Molecular docking maps revealed toll-like receptor 4 as a molecular target for WG, demonstrating binding through a hydrogen bond (Lys263, Ser120). In lipopolysaccharide-stimulated BV2 cells and SCI mice, WG significantly attenuated microglial activation and facilitated a phenotype shift from M1 to M2. This was evidenced by the reversal of the increased expressions of Iba1, GFAP, and iNOS, as well as the decreased expression of Arg1. WG also suppressed the production of pro-inflammatory mediators (NO, TNF-α, IL-6, IL-1α, IL-1β, C1q). WG exerted these effects by suppressing the TLR4/MyD88/NF-κB signaling axis in microglia. Furthermore, by reducing levels of TNF-α, IL-1α, and C1q in supernatant of LPS-induced microglia, WG indirectly induced astrocytes change to A2 phenotype, evidenced by transcriptome sequencing result of primary mouse astrocytes. All these events above collectively created a favorable microenvironment, contributing to a significant alleviation of weight loss and neuronal damage at the lesion site of SCI mice. Our findings substantiate the efficacy of WG in mitigating neuroinflammation after SCI, thereby warranting further exploration.
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Affiliation(s)
- Ruyi Zhu
- National Engineering Laboratory for Resource Development of Endangered Crude Drugs in Northwest China, The Key Laboratory of Medicinal Resources and Natural Pharmaceutical Chemistry, The Ministry of Education, College of Life Sciences, Shaanxi Normal University, China
| | - Yaling Zhang
- National Engineering Laboratory for Resource Development of Endangered Crude Drugs in Northwest China, The Key Laboratory of Medicinal Resources and Natural Pharmaceutical Chemistry, The Ministry of Education, College of Life Sciences, Shaanxi Normal University, China
| | - Weitai He
- National Engineering Laboratory for Resource Development of Endangered Crude Drugs in Northwest China, The Key Laboratory of Medicinal Resources and Natural Pharmaceutical Chemistry, The Ministry of Education, College of Life Sciences, Shaanxi Normal University, China
| | - Yanan Sun
- National Engineering Laboratory for Resource Development of Endangered Crude Drugs in Northwest China, The Key Laboratory of Medicinal Resources and Natural Pharmaceutical Chemistry, The Ministry of Education, College of Life Sciences, Shaanxi Normal University, China
| | - Xin Zhao
- National Engineering Laboratory for Resource Development of Endangered Crude Drugs in Northwest China, The Key Laboratory of Medicinal Resources and Natural Pharmaceutical Chemistry, The Ministry of Education, College of Life Sciences, Shaanxi Normal University, China
| | - Yaping Yan
- National Engineering Laboratory for Resource Development of Endangered Crude Drugs in Northwest China, The Key Laboratory of Medicinal Resources and Natural Pharmaceutical Chemistry, The Ministry of Education, College of Life Sciences, Shaanxi Normal University, China.
| | - Qian Zhang
- National Engineering Laboratory for Resource Development of Endangered Crude Drugs in Northwest China, The Key Laboratory of Medicinal Resources and Natural Pharmaceutical Chemistry, The Ministry of Education, College of Life Sciences, Shaanxi Normal University, China.
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Li R, Feng J, Li L, Luo G, Shi Y, Shen S, Yuan X, Wu J, Yan B, Yang L. Recombinant fibroblast growth factor 4 ameliorates axonal regeneration and functional recovery in acute spinal cord injury through altering microglia/macrophage phenotype. Int Immunopharmacol 2024; 134:112188. [PMID: 38728880 DOI: 10.1016/j.intimp.2024.112188] [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: 01/08/2024] [Revised: 04/18/2024] [Accepted: 04/28/2024] [Indexed: 05/12/2024]
Abstract
Neuroinflammation is one of the extensive secondary injury processes that aggravate metabolic and cellular dysfunction and tissue loss following spinal cord injury (SCI). Thus, an anti-inflammatory strategy is crucial for modulating structural and functional restoration during the stage of acute and chronic SCI. Recombinant fibroblast growth factor 4 (rFGF4) has eliminated its mitogenic activity and demonstrated a metabolic regulator for alleviating hyperglycemia in type 2 diabetes and liver injury in non-alcoholic steatohepatitis. However, it remains to be explored whether or not rFGF4 has a neuroprotective effect for restoring neurological disorders, such as SCI. Here, we identified that rFGF4 could polarize microglia/macrophages into the restorative M2 subtype, thus exerting an anti-inflammatory effect to promote neurological functional recovery and nerve fiber regeneration after SCI. Importantly, these effects by rFGF4 were related to triggering PI3K/AKT/GSK3β and attenuating TLR4/NF-κB signaling axes. Conversely, gene silencing of the PI3K/AKT/GSK3β signaling or pharmacological reactivation of the TLR4/NF-κB axis aggravated inflammatory reaction. Thus, our findings highlight rFGF4 as a potentially therapeutic regulator for repairing SCI, and its outstanding effect is associated with regulating macrophage/microglial polarization.
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Affiliation(s)
- Rui Li
- Orthopaedics/Department of Spine Surgery, Department of Pharmacy and Department of Gastroenterology, Shenzhen Second People's Hospital (Shenzhen Institute of Translational Medicine), Guangdong Key Laboratory for Biomedical Measurements and Ultrasound Imaging, National-Regional Key Technology Engineering Laboratory for Medical Ultrasound, School of Biomedical Engineering, Shenzhen University Medical School, Shenzhen 518060, China; State Key Laboratory of Chemical Oncogenomics, School of Chemical Biology and Biotechnology, Peking University Shenzhen Graduate School, Shenzhen 518055, China
| | - Juerong Feng
- Orthopaedics/Department of Spine Surgery, Department of Pharmacy and Department of Gastroenterology, Shenzhen Second People's Hospital (Shenzhen Institute of Translational Medicine), Guangdong Key Laboratory for Biomedical Measurements and Ultrasound Imaging, National-Regional Key Technology Engineering Laboratory for Medical Ultrasound, School of Biomedical Engineering, Shenzhen University Medical School, Shenzhen 518060, China
| | - Liuxun Li
- Orthopaedics/Department of Spine Surgery, Department of Pharmacy and Department of Gastroenterology, Shenzhen Second People's Hospital (Shenzhen Institute of Translational Medicine), Guangdong Key Laboratory for Biomedical Measurements and Ultrasound Imaging, National-Regional Key Technology Engineering Laboratory for Medical Ultrasound, School of Biomedical Engineering, Shenzhen University Medical School, Shenzhen 518060, China
| | - Guotian Luo
- Orthopaedics/Department of Spine Surgery, Department of Pharmacy and Department of Gastroenterology, Shenzhen Second People's Hospital (Shenzhen Institute of Translational Medicine), Guangdong Key Laboratory for Biomedical Measurements and Ultrasound Imaging, National-Regional Key Technology Engineering Laboratory for Medical Ultrasound, School of Biomedical Engineering, Shenzhen University Medical School, Shenzhen 518060, China
| | - Yongpeng Shi
- Orthopaedics/Department of Spine Surgery, Department of Pharmacy and Department of Gastroenterology, Shenzhen Second People's Hospital (Shenzhen Institute of Translational Medicine), Guangdong Key Laboratory for Biomedical Measurements and Ultrasound Imaging, National-Regional Key Technology Engineering Laboratory for Medical Ultrasound, School of Biomedical Engineering, Shenzhen University Medical School, Shenzhen 518060, China
| | - Shichao Shen
- Orthopaedics/Department of Spine Surgery, Department of Pharmacy and Department of Gastroenterology, Shenzhen Second People's Hospital (Shenzhen Institute of Translational Medicine), Guangdong Key Laboratory for Biomedical Measurements and Ultrasound Imaging, National-Regional Key Technology Engineering Laboratory for Medical Ultrasound, School of Biomedical Engineering, Shenzhen University Medical School, Shenzhen 518060, China
| | - Xinrong Yuan
- Orthopaedics/Department of Spine Surgery, Department of Pharmacy and Department of Gastroenterology, Shenzhen Second People's Hospital (Shenzhen Institute of Translational Medicine), Guangdong Key Laboratory for Biomedical Measurements and Ultrasound Imaging, National-Regional Key Technology Engineering Laboratory for Medical Ultrasound, School of Biomedical Engineering, Shenzhen University Medical School, Shenzhen 518060, China
| | - Jianlong Wu
- Orthopaedics/Department of Spine Surgery, Department of Pharmacy and Department of Gastroenterology, Shenzhen Second People's Hospital (Shenzhen Institute of Translational Medicine), Guangdong Key Laboratory for Biomedical Measurements and Ultrasound Imaging, National-Regional Key Technology Engineering Laboratory for Medical Ultrasound, School of Biomedical Engineering, Shenzhen University Medical School, Shenzhen 518060, China
| | - Bin Yan
- Orthopaedics/Department of Spine Surgery, Department of Pharmacy and Department of Gastroenterology, Shenzhen Second People's Hospital (Shenzhen Institute of Translational Medicine), Guangdong Key Laboratory for Biomedical Measurements and Ultrasound Imaging, National-Regional Key Technology Engineering Laboratory for Medical Ultrasound, School of Biomedical Engineering, Shenzhen University Medical School, Shenzhen 518060, China.
| | - Lei Yang
- Orthopaedics/Department of Spine Surgery, Department of Pharmacy and Department of Gastroenterology, Shenzhen Second People's Hospital (Shenzhen Institute of Translational Medicine), Guangdong Key Laboratory for Biomedical Measurements and Ultrasound Imaging, National-Regional Key Technology Engineering Laboratory for Medical Ultrasound, School of Biomedical Engineering, Shenzhen University Medical School, Shenzhen 518060, China.
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Wu C, Chen Y, Chen X, Zhang Y, Zhao X, Deng Y, Li C, Zhang D, Zhang X, Wang S. 20-Deoxyingenol Activates Mitophagy Through TFEB and Promotes Functional Recovery After Spinal Cord Injury. Mol Neurobiol 2024:10.1007/s12035-024-04283-5. [PMID: 38865079 DOI: 10.1007/s12035-024-04283-5] [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: 12/12/2023] [Accepted: 06/04/2024] [Indexed: 06/13/2024]
Abstract
Spinal cord injury (SCI) can lead to permanent paralysis and various motor, sensory and autonomic nervous system dysfunction. The complex pathophysiological processes limit the effectiveness of many clinical treatments. Mitochondria has been reported to play a key role in the pathogenesis of SCI; while mitophagy is a protective mechanism against mitochondrial dysfunction. However, there is recently little drugs that may targeted activate mitophagy to treat SCI. In this study, we evaluated the role of 20-Deoxyingenol (20-DOI) in SCI and explored its potential mechanisms. We used a SCI rat model and evaluated the functional outcomes after the injury. Western blotting and immunofluorescence techniques were used to analyze the levels of mitophagy, apoptosis, and TFEB-related signaling pathways. Our research results show that 20-DOI significantly improves the apoptosis of neural cells after TBHP stimulation and functional recovery after spinal cord injury. In addition, mitophagy, TFEB levels, and apoptosis are related to the mechanism of 20-DOI treatment for spinal cord injury. Specifically, our research results indicate that 20-DOI restored the autophagic flux after injury, thereby inducing mitophagy, eliminating the accumulation of Cyto C, and inhibiting apoptosis. Further mechanism research suggests that 20-DOI may regulate mitophagy by promoting TFEB nuclear translocation. These results indicate that 20-DOI can significantly promote recovery after spinal cord injury, which may be a promising treatment method for spinal cord injury.
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Affiliation(s)
- Chenyu Wu
- Department of Orthopaedics, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Zhejiang Province, Wenzhou, China
- Zhejiang Provincial Key Laboratory of Orthopedics, Zhejiang Province, Wenzhou, China
- The Second School of Medicine, Wenzhou Medical University, Zhejiang Province, Wenzhou, China
| | - Yu Chen
- Department of Orthopaedics, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Zhejiang Province, Wenzhou, China
- Zhejiang Provincial Key Laboratory of Orthopedics, Zhejiang Province, Wenzhou, China
- The Second School of Medicine, Wenzhou Medical University, Zhejiang Province, Wenzhou, China
| | - Ximiao Chen
- Department of Orthopaedics, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Zhejiang Province, Wenzhou, China
- Zhejiang Provincial Key Laboratory of Orthopedics, Zhejiang Province, Wenzhou, China
- The Second School of Medicine, Wenzhou Medical University, Zhejiang Province, Wenzhou, China
| | - Yekai Zhang
- Department of Orthopaedics, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Zhejiang Province, Wenzhou, China
- Zhejiang Provincial Key Laboratory of Orthopedics, Zhejiang Province, Wenzhou, China
- The Second School of Medicine, Wenzhou Medical University, Zhejiang Province, Wenzhou, China
| | - Xiaoying Zhao
- Department of Orthopaedics, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Zhejiang Province, Wenzhou, China
- Zhejiang Provincial Key Laboratory of Orthopedics, Zhejiang Province, Wenzhou, China
- The Second School of Medicine, Wenzhou Medical University, Zhejiang Province, Wenzhou, China
| | - Yuxin Deng
- Department of Orthopaedics, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Zhejiang Province, Wenzhou, China
- Zhejiang Provincial Key Laboratory of Orthopedics, Zhejiang Province, Wenzhou, China
- The Second School of Medicine, Wenzhou Medical University, Zhejiang Province, Wenzhou, China
| | - Chenchao Li
- Department of Orthopaedics, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Zhejiang Province, Wenzhou, China
- Zhejiang Provincial Key Laboratory of Orthopedics, Zhejiang Province, Wenzhou, China
- The Second School of Medicine, Wenzhou Medical University, Zhejiang Province, Wenzhou, China
| | - Di Zhang
- Department of Orthopaedics, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Zhejiang Province, Wenzhou, China.
- Zhejiang Provincial Key Laboratory of Orthopedics, Zhejiang Province, Wenzhou, China.
- The Second School of Medicine, Wenzhou Medical University, Zhejiang Province, Wenzhou, China.
| | - Xiaolei Zhang
- Department of Orthopaedics, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Zhejiang Province, Wenzhou, China.
- Zhejiang Provincial Key Laboratory of Orthopedics, Zhejiang Province, Wenzhou, China.
- The Second School of Medicine, Wenzhou Medical University, Zhejiang Province, Wenzhou, China.
| | - Sheng Wang
- Department of Orthopaedics, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Zhejiang Province, Wenzhou, China.
- Zhejiang Provincial Key Laboratory of Orthopedics, Zhejiang Province, Wenzhou, China.
- The Second School of Medicine, Wenzhou Medical University, Zhejiang Province, Wenzhou, China.
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Sharma S, Kalyani N, Dutta T, Velázquez-González JS, Llamas-Garro I, Ung B, Bas J, Dubey R, Mishra SK. Optical Devices for the Diagnosis and Management of Spinal Cord Injuries: A Review. BIOSENSORS 2024; 14:296. [PMID: 38920599 PMCID: PMC11201428 DOI: 10.3390/bios14060296] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/14/2024] [Revised: 05/21/2024] [Accepted: 06/02/2024] [Indexed: 06/27/2024]
Abstract
Throughout the central nervous system, the spinal cord plays a very important role, namely, transmitting sensory and motor information inwardly so that it can be processed by the brain. There are many different ways this structure can be damaged, such as through traumatic injury or surgery, such as scoliosis correction, for instance. Consequently, damage may be caused to the nervous system as a result of this. There is no doubt that optical devices such as microscopes and cameras can have a significant impact on research, diagnosis, and treatment planning for patients with spinal cord injuries (SCIs). Additionally, these technologies contribute a great deal to our understanding of these injuries, and they are also essential in enhancing the quality of life of individuals with spinal cord injuries. Through increasingly powerful, accurate, and minimally invasive technologies that have been developed over the last decade or so, several new optical devices have been introduced that are capable of improving the accuracy of SCI diagnosis and treatment and promoting a better quality of life after surgery. We aim in this paper to present a timely overview of the various research fields that have been conducted on optical devices that can be used to diagnose spinal cord injuries as well as to manage the associated health complications that affected individuals may experience.
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Affiliation(s)
- Sonika Sharma
- Department of Physics, Graphic Era Hill University, Dehradun 248002, Uttarakhand, India;
| | - Neeti Kalyani
- Department of Biotechnology and Biomedicine, Denmark Technical University, 2800 Kongens Lyngby, Denmark;
| | - Taposhree Dutta
- Department of Chemistry, Indian Institute of Engineering Science and Technology, Shibpur, Howarh 711103, West Bengal, India;
| | - Jesús Salvador Velázquez-González
- Navigation and Positioning, Center Technologic de Telecomunicacions de Catalunya (CTTC), Avinguda Carl Friedrich Gauss, 11, 08860 Castelldefels, Spain; (J.S.V.-G.); (I.L.-G.)
| | - Ignacio Llamas-Garro
- Navigation and Positioning, Center Technologic de Telecomunicacions de Catalunya (CTTC), Avinguda Carl Friedrich Gauss, 11, 08860 Castelldefels, Spain; (J.S.V.-G.); (I.L.-G.)
| | - Bora Ung
- Electrical Engineering Department, Ecole de Technologie Superieure, Montreal, QC H3C 1K3, Canada;
| | - Joan Bas
- Space and Resilient Communications and Systems (SRCOM), Center Technologic de Telecomunicacions de Catalunya (CTTC), Avinguda Carl Friedrich Gauss, 11, 08860 Castelldefels, Spain;
| | - Rakesh Dubey
- Institute of Physics, University of Szczecin, 70-453 Szczecin, Poland;
| | - Satyendra K. Mishra
- Space and Resilient Communications and Systems (SRCOM), Center Technologic de Telecomunicacions de Catalunya (CTTC), Avinguda Carl Friedrich Gauss, 11, 08860 Castelldefels, Spain;
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Li F, Zhang F, Wang T, Xie Z, Luo H, Dong W, Zhang J, Ren C, Peng W. A self-amplifying loop of TP53INP1 and P53 drives oxidative stress-induced apoptosis of bone marrow mesenchymal stem cells. Apoptosis 2024; 29:882-897. [PMID: 38491252 PMCID: PMC11055765 DOI: 10.1007/s10495-023-01934-1] [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] [Accepted: 12/28/2023] [Indexed: 03/18/2024]
Abstract
Bone marrow mesenchymal stem cell (BMSC) transplantation is a promising regenerative therapy; however, the survival rate of BMSCs after transplantation is low. Oxidative stress is one of the main reasons for the high apoptosis rate of BMSCs after transplantation, so there is an urgent need to explore the mechanism of oxidative stress-induced apoptosis of BMSCs. Our previous transcriptome sequencing results suggested that the expression of P53-induced nuclear protein 1 (TP53INP1) and the tumor suppressor P53 (P53) was significantly upregulated during the process of oxidative stress-induced apoptosis of BMSCs. The present study further revealed the role and mechanism of TP53INP1 and P53 in oxidative stress-induced apoptosis in BMSCs. Overexpression of TP53INP1 induced apoptosis of BMSCs, knockdown of TP53INP1 alleviated oxidative stress apoptosis of BMSCs. Under oxidative stress conditions, P53 is regulated by TP53INP1, while P53 can positively regulate the expression of TP53INP1, so the two form a positive feedback loop. To clarify the mechanism of feedback loop formation. We found that TP53INP1 inhibited the ubiquitination and degradation of P53 by increasing the phosphorylation level of P53, leading to the accumulation of P53 protein. P53 can act on the promoter of the TP53INP1 gene and increase the expression of TP53INP1 through transcriptional activation. This is the first report on a positive feedback loop formed by TP53INP1 and P53 under oxidative stress. The present study clarified the formation mechanism of the positive feedback loop. The TP53INP1-P53 positive feedback loop may serve as a potential target for inhibiting oxidative stress-induced apoptosis in BMSCs.
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Affiliation(s)
- Fanchao Li
- Department of Orthopedics and Traumatology, The Affiliated Hospital of Guizhou Medical University, Guiyang, 550004, Guizhou, China
| | - Fei Zhang
- Department of Orthopedics and Traumatology, The Affiliated Hospital of Guizhou Medical University, Guiyang, 550004, Guizhou, China
| | - Tao Wang
- Department of Orthopedics and Traumatology, The Affiliated Hospital of Guizhou Medical University, Guiyang, 550004, Guizhou, China
| | - Zhihong Xie
- Department of Orthopedics and Traumatology, The Affiliated Hospital of Guizhou Medical University, Guiyang, 550004, Guizhou, China
| | - Hong Luo
- Department of Orthopedics and Traumatology, The Affiliated Hospital of Guizhou Medical University, Guiyang, 550004, Guizhou, China
| | - Wentao Dong
- Department of Orthopedics and Traumatology, The Affiliated Hospital of Guizhou Medical University, Guiyang, 550004, Guizhou, China
| | - Jian Zhang
- Department of Orthopedics and Traumatology, The Affiliated Hospital of Guizhou Medical University, Guiyang, 550004, Guizhou, China
| | - Chao Ren
- Department of Orthopedics and Traumatology, The Affiliated Hospital of Guizhou Medical University, Guiyang, 550004, Guizhou, China
| | - Wuxun Peng
- Department of Orthopedics and Traumatology, The Affiliated Hospital of Guizhou Medical University, Guiyang, 550004, Guizhou, China.
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Shen W, Li C, Liu Q, Cai J, Wang Z, Pang Y, Ning G, Yao X, Kong X, Feng S. Celastrol inhibits oligodendrocyte and neuron ferroptosis to promote spinal cord injury recovery. PHYTOMEDICINE : INTERNATIONAL JOURNAL OF PHYTOTHERAPY AND PHYTOPHARMACOLOGY 2024; 128:155380. [PMID: 38507854 DOI: 10.1016/j.phymed.2024.155380] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/12/2023] [Revised: 01/01/2024] [Accepted: 01/17/2024] [Indexed: 03/22/2024]
Abstract
BACKGROUND Spinal cord injury (SCI) is a traumatic injury to the central nervous system and can cause lipid peroxidation in the spinal cord. Ferroptosis, an iron-dependent programmed cell death, plays a key role in the pathophysiology progression of SCI. Celastrol, a widely used antioxidant drug, has potential therapeutic value for nervous system. PURPOSE To investigate whether celastrol can be a reliable candidate for ferroptosis inhibitor and the molecular mechanism of celastrol in repairing SCI by inhibiting ferroptosis. METHODS First, a rat SCI model was constructed, and the recovery of motor function was observed after treatment with celastrol. The regulatory effect of celastrol on ferroptosis pathway Nrf2-xCT-GPX4 was detected by Western blot and immunofluorescence. Finally, the ferroptosis model of neurons and oligodendrocytes was constructed in vitro to further verify the mechanism of inhibiting ferroptosis by celastrol. RESULTS Our results demonstrated that celastrol promoted the recovery of spinal cord tissue and motor function in SCI rats. Further in vitro and in vivo studies showed that celastrol significantly inhibited ferroptosis in neurons and oligodendrocytes and reduced the accumulation of ROS. Finally, we found that celastrol could inhibit ferroptosis by up-regulating the Nrf2-xCT-GPX4 axis to repair SCI. CONCLUSION Celastrol effectively inhibits ferroptosis after SCI by upregulating the Nrf2-xCT-GPX4 axis, reducing the production of lipid ROS, protecting the survival of neurons and oligodendrocytes, and improving the functional recovery.
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Affiliation(s)
- Wenyuan Shen
- Spine Surgery Department of the Second Hospital, Cheeloo College of Medicine, Shandong University, 247 Beiyuan Street, Jinan, Shandong 250033, PR China; Department of Orthopedics, International Science and Technology Cooperation Base of Spinal Cord Injury, Tianjin Key Laboratory of Spine and Spinal Cord Injury, Tianjin Medical University General Hospital, 154 Anshan Road, Heping District, Tianjin 300052, PR China; Orthopedic Research Center of Shandong University & Advanced Medical Research Institute, Cheeloo College of Medicine, Shandong University, Jinan, Shandong 250063, PR China
| | - Chuanhao Li
- Department of Orthopedics, International Science and Technology Cooperation Base of Spinal Cord Injury, Tianjin Key Laboratory of Spine and Spinal Cord Injury, Tianjin Medical University General Hospital, 154 Anshan Road, Heping District, Tianjin 300052, PR China
| | - Quan Liu
- Department of Orthopedics, International Science and Technology Cooperation Base of Spinal Cord Injury, Tianjin Key Laboratory of Spine and Spinal Cord Injury, Tianjin Medical University General Hospital, 154 Anshan Road, Heping District, Tianjin 300052, PR China
| | - Jun Cai
- Tianjin Medicine and Health Research Center, Tianjin Institute of Medical & Pharmaceutical Sciences, Tianjin, 300020, PR China
| | - Zhishuo Wang
- Department of Orthopedics, International Science and Technology Cooperation Base of Spinal Cord Injury, Tianjin Key Laboratory of Spine and Spinal Cord Injury, Tianjin Medical University General Hospital, 154 Anshan Road, Heping District, Tianjin 300052, PR China
| | - Yilin Pang
- Department of Orthopedics, International Science and Technology Cooperation Base of Spinal Cord Injury, Tianjin Key Laboratory of Spine and Spinal Cord Injury, Tianjin Medical University General Hospital, 154 Anshan Road, Heping District, Tianjin 300052, PR China
| | - Guangzhi Ning
- Department of Orthopedics, International Science and Technology Cooperation Base of Spinal Cord Injury, Tianjin Key Laboratory of Spine and Spinal Cord Injury, Tianjin Medical University General Hospital, 154 Anshan Road, Heping District, Tianjin 300052, PR China
| | - Xue Yao
- Department of Orthopedics, International Science and Technology Cooperation Base of Spinal Cord Injury, Tianjin Key Laboratory of Spine and Spinal Cord Injury, Tianjin Medical University General Hospital, 154 Anshan Road, Heping District, Tianjin 300052, PR China; Orthopedic Research Center of Shandong University & Advanced Medical Research Institute, Cheeloo College of Medicine, Shandong University, Jinan, Shandong 250063, PR China.
| | - Xiaohong Kong
- Orthopedic Research Center of Shandong University & Advanced Medical Research Institute, Cheeloo College of Medicine, Shandong University, Jinan, Shandong 250063, PR China.
| | - Shiqing Feng
- Spine Surgery Department of the Second Hospital, Cheeloo College of Medicine, Shandong University, 247 Beiyuan Street, Jinan, Shandong 250033, PR China; Department of Orthopedics, International Science and Technology Cooperation Base of Spinal Cord Injury, Tianjin Key Laboratory of Spine and Spinal Cord Injury, Tianjin Medical University General Hospital, 154 Anshan Road, Heping District, Tianjin 300052, PR China; Orthopedic Research Center of Shandong University & Advanced Medical Research Institute, Cheeloo College of Medicine, Shandong University, Jinan, Shandong 250063, PR China.
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Bingnan W, Jiao T, Ghorbani A, Baghei S. Enhancing regenerative potential: A comprehensive review of stem cell transplantation for sports-related neuronal injuries, with a focus on spinal cord injuries and peripheral nervous system damage. Tissue Cell 2024; 88:102429. [PMID: 38833939 DOI: 10.1016/j.tice.2024.102429] [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: 01/24/2024] [Revised: 05/28/2024] [Accepted: 05/30/2024] [Indexed: 06/06/2024]
Abstract
Neuronal injuries, as one of the consequences of sports-related incidents, exert a profound influence on the athletes' future, potentially leading to complete immobility and impeding their athletic pursuits. In cases of severe damage inflicted upon the spinal cord (SC) and peripheral nervous systems (PNS), the regenerative process is notably compromised, rendering it essentially inefficient. Among the pivotal therapeutic approaches for the enhancement and prevention of secondary SC injuries (SCI), stem cell transplantation (SCT) stands out prominently. Stem cells, whether directly involved in replacement and reconstruction or indirectly through modification and secretion of crucial bioenvironmental factors, engage in the intricate process of tissue regeneration. Stem cells, through the secretion of neurotrophic factors (NTFs) (aiming to modulate the immune system), reduction of inflammation, axonal growth stimulation, and myelin formation, endeavor to facilitate the regeneration of damaged SC tissue. The fundamental challenges of this approach encompass the proper selection of suitable stem cell candidates for transplantation and the establishment of an appropriate microenvironment conducive to SC repair. In this article, an attempt has been made to explore sports-related injuries, particularly SCI, to comprehensively review innovative methods for treating SCI, and to address the existing challenges. Additionally, some of the stem cells used in neural injuries and the process of their utilization have been discussed.
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Affiliation(s)
- Wang Bingnan
- Department of P.E, Central South University, Changsha 410083, China
| | - Tong Jiao
- The High School Attached to Hunan Normal University Bocai Experimental Middle School,Changsha 410208, China.
| | - A Ghorbani
- Biotechnology Department, Islamic Azad University, Isfahan, Iran
| | - Sh Baghei
- Biotechnology Department, Islamic Azad University, Isfahan, Iran.
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Baroudi M, Rezk A, Daher M, Balmaceno-Criss M, Gregoryczyk JG, Sharma Y, McDonald CL, Diebo BG, Daniels AH. Management of traumatic spinal cord injury: A current concepts review of contemporary and future treatment. Injury 2024; 55:111472. [PMID: 38460480 DOI: 10.1016/j.injury.2024.111472] [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: 10/28/2023] [Revised: 02/03/2024] [Accepted: 02/25/2024] [Indexed: 03/11/2024]
Abstract
Spinal Cord Injury (SCI) is a condition leading to inflammation, edema, and dysfunction of the spinal cord, most commonly due to trauma, tumor, infection, or vascular disturbance. Symptoms include sensory and motor loss starting at the level of injury; the extent of damage depends on injury severity as detailed in the ASIA score. In the acute setting, maintaining mean arterial pressure (MAP) higher than 85 mmHg for up to 7 days following injury is preferred; although caution must be exercised when using vasopressors such as phenylephrine due to serious side effects such as pulmonary edema and death. Decompression surgery (DS) may theoretically relieve edema and reduce intraspinal pressure, although timing of surgery remains a matter of debate. Methylprednisolone (MP) is currently used due to its ability to reduce inflammation but more recent studies question its clinical benefits, especially with inconsistency in recommending it nationally and internationally. The choice of MP is further complicated by conflicting evidence for optimal timing to initiate treatment, and by the reported observation that higher doses are correlated with increased risk of complications. Thyrotropin-releasing hormone may be beneficial in less severe injuries. Finally, this review discusses many options currently being researched and have shown promising pre-clinical results.
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Affiliation(s)
- Makeen Baroudi
- Department of Orthopedic Surgery, The Warren Alpert Medical School of Brown University, Providence, RI, USA
| | - Anna Rezk
- Department of Orthopedic Surgery, The Warren Alpert Medical School of Brown University, Providence, RI, USA
| | - Mohammad Daher
- Department of Orthopedic Surgery, The Warren Alpert Medical School of Brown University, Providence, RI, USA
| | - Mariah Balmaceno-Criss
- Department of Orthopedic Surgery, The Warren Alpert Medical School of Brown University, Providence, RI, USA
| | - Jerzy George Gregoryczyk
- Department of Orthopedic Surgery, The Warren Alpert Medical School of Brown University, Providence, RI, USA
| | - Yatharth Sharma
- Department of Orthopedic Surgery, The Warren Alpert Medical School of Brown University, Providence, RI, USA
| | - Christopher L McDonald
- Department of Orthopedic Surgery, The Warren Alpert Medical School of Brown University, Providence, RI, USA
| | - Bassel G Diebo
- Department of Orthopedic Surgery, The Warren Alpert Medical School of Brown University, Providence, RI, USA
| | - Alan H Daniels
- Department of Orthopedic Surgery, The Warren Alpert Medical School of Brown University, Providence, RI, USA.
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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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Hu B, Zhao Y, Chen C, Wu B, Zhang H, Liu B, Zheng R, Fang F. Research hotspots and trends of microRNAs in spinal cord injury: a comprehensive bibliometric analysis. Front Neurol 2024; 15:1406977. [PMID: 38836004 PMCID: PMC11149023 DOI: 10.3389/fneur.2024.1406977] [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: 03/25/2024] [Accepted: 04/25/2024] [Indexed: 06/06/2024] Open
Abstract
Background Spinal cord injury (SCI) is a nervous system disease leading to motor and sensory dysfunction below the injury level, and can result in paralysis. MicroRNAs (miRNAs) play a key role in SCI treatment, and related research provides insights for SCI diagnosis and treatment. Bibliometrics is an important tool for literature statistics and evaluation, objectively summarizing multidimensional information. This study comprehensively overviews the field through bibliometric analysis of miRNA and SCI research, providing contemporary resources for future collaboration and clinical treatment. Materials and methods In this study, we searched the Web of Science Core Collection (WOSCC) database. After careful screening and data import, we extracted annual publications, citation counts, countries, institutions, authors, journals, highly cited articles, co-cited articles, keywords, and H-index. Bibliometrics and visualization analyses employed VOSviewer, CiteSpace, the R package "bibliometrix," and online analytic platforms. Using Arrowsmith, we determined miRNA-SCI relationships and discussed potential miRNA mechanisms in SCI. Results From 2008 to 2024, the number of related papers increased annually, reaching 754. The number of yearly publications remained high and entered a period of rapid development. Researchers from 50 countries/regions, 802 institutions, 278 journals, and 3,867 authors participated in the field. Currently, China has advantages in the number of national papers, citations, institutions, and authors. However, it is necessary to strengthen cooperation among different authors, institutions, and countries to promote the production of important academic achievements. The research in the field currently focuses on nerve injury, apoptosis, and gene expression. Future research directions mainly involve molecular mechanisms, clinical trials, exosomes, and inflammatory reactions. Conclusion Overall, this study comprehensively analyzes the research status and frontier of miRNAs in SCI. A systematic summary provides a complete and intuitive understanding of the relationship between SCI and miRNAs. The presented findings establish a basis for future research and clinical application in this field.
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Affiliation(s)
- Baoyang Hu
- Spinal Surgery, Tongliao People's Hospital, Tongliao, Inner Mongolia, China
| | - Yue Zhao
- Computer Network Information Center, Tongliao People's Hospital, Tongliao, Inner Mongolia, China
| | - Chao Chen
- Spinal Surgery, Tongliao People's Hospital, Tongliao, Inner Mongolia, China
| | - Bin Wu
- Spinal Surgery, Tongliao People's Hospital, Tongliao, Inner Mongolia, China
| | - Hongbin Zhang
- Spinal Surgery, Tongliao People's Hospital, Tongliao, Inner Mongolia, China
| | - Bin Liu
- Spinal Surgery, Tongliao People's Hospital, Tongliao, Inner Mongolia, China
| | - Runquan Zheng
- Bone Trauma Surgery, The 960th Hospital of the PLA Joint Logistics Support Force, Jinan, Shandong, China
| | - Fang Fang
- Spinal Surgery, Tongliao People's Hospital, Tongliao, Inner Mongolia, China
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Zhang Y, Chen X, Wang X, Xu Y, Li J, Wu Y, Wang Z, Zhang S, Hu J, Qi Q. Hesperetin ameliorates spinal cord injury in rats through suppressing apoptosis, oxidative stress and inflammatory response. Eur J Pharmacol 2024; 971:176541. [PMID: 38556120 DOI: 10.1016/j.ejphar.2024.176541] [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: 01/30/2024] [Revised: 03/22/2024] [Accepted: 03/26/2024] [Indexed: 04/02/2024]
Abstract
Spinal cord injury (SCI), a fatal condition, is characterized by progressive tissue degradation and extreme functional deficits with limited treatment options. Hesperetin, a natural flavonoid with potent antioxidant, antiapoptotic and anti-inflammatory properties, has yet to be systematically investigated for its therapeutic effects on neurological damage in rat models of SCI. In this study, rats were given oral hesperetin once daily for 28 days, and their locomotion and histopathological changes were assessed. The findings demonstrated that hesperetin alleviates neurological damage caused by SCI. The observed behavioral improvement could be due to an increase in the survival rate of neurons and oligodendrocytes. This improvement further boosted the ability to repair tissue and form myelin after SCI, ultimately resulting in better neurological outcomes. Furthermore, the present study revealed that hesperetin possesses potent antioxidant capabilities in the context of SCI, reducing the levels of harmful oxygen free radicals and increasing the activity of antioxidant enzymes. Additionally, hesperetin markedly inhibited injury-induced apoptosis, as assessed by caspase-3 immunofluorescence staining and the expression level of caspase-3, indicating the ability of hesperetin to prevent cell death after SCI. Finally, after SCI, hesperetin treatment effectively reduced the expression of inflammatory factors, including IL-1β, TNFα, and NF-kB, demonstrating the anti-inflammatory effect of hesperetin. Together, our results suggest that hesperetin should be considered a valuable therapeutic aid following SCI, as its positive effects on the nervous system, including antioxidant, anti-inflammatory and antiapoptotic effects, may be crucial mechanisms through which hesperetin exerts neuroprotective effects against SCI.
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Affiliation(s)
- Yuxin Zhang
- Anhui Key Laboratory of Tissue Transplantation, Bengbu Medical University, Bengbu, China; School of Laboratory Medicine, Bengbu Medical University, Bengbu, China
| | - Xiaojie Chen
- Anhui Key Laboratory of Tissue Transplantation, Bengbu Medical University, Bengbu, China; School of Basic Medicine, Bengbu Medical University, Bengbu, China
| | - Xiaoxuan Wang
- School of Laboratory Medicine, Bengbu Medical University, Bengbu, China; Clinical Laboratory, Bengbu Municipal Second People Hospital, Bengbu, China
| | - Yibo Xu
- Anhui Key Laboratory of Tissue Transplantation, Bengbu Medical University, Bengbu, China; School of Basic Medicine, Bengbu Medical University, Bengbu, China
| | - Jiaxin Li
- Anhui Key Laboratory of Tissue Transplantation, Bengbu Medical University, Bengbu, China; School of Basic Medicine, Bengbu Medical University, Bengbu, China
| | - Yimin Wu
- Anhui Key Laboratory of Tissue Transplantation, Bengbu Medical University, Bengbu, China; School of Basic Medicine, Bengbu Medical University, Bengbu, China
| | - Ziyao Wang
- Anhui Key Laboratory of Tissue Transplantation, Bengbu Medical University, Bengbu, China; School of Basic Medicine, Bengbu Medical University, Bengbu, China
| | - Suhui Zhang
- Anhui Key Laboratory of Tissue Transplantation, Bengbu Medical University, Bengbu, China; School of Basic Medicine, Bengbu Medical University, Bengbu, China
| | - Jianguo Hu
- Anhui Key Laboratory of Tissue Transplantation, Bengbu Medical University, Bengbu, China; Department of Clinical Laboratory, The First Affiliated Hospital of Bengbu Medical University, Bengbu, China.
| | - Qi Qi
- Anhui Key Laboratory of Tissue Transplantation, Bengbu Medical University, Bengbu, China; School of Basic Medicine, Bengbu Medical University, Bengbu, China.
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Fischer G, Bättig L, Stienen MN, Curt A, Fehlings MG, Hejrati N. Advancements in neuroregenerative and neuroprotective therapies for traumatic spinal cord injury. Front Neurosci 2024; 18:1372920. [PMID: 38812974 PMCID: PMC11133582 DOI: 10.3389/fnins.2024.1372920] [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: 01/18/2024] [Accepted: 04/10/2024] [Indexed: 05/31/2024] Open
Abstract
Traumatic spinal cord injuries (SCIs) continue to be a major healthcare concern, with a rising prevalence worldwide. In response to this growing medical challenge, considerable scientific attention has been devoted to developing neuroprotective and neuroregenerative strategies aimed at improving the prognosis and quality of life for individuals with SCIs. This comprehensive review aims to provide an up-to-date and thorough overview of the latest neuroregenerative and neuroprotective therapies currently under investigation. These strategies encompass a multifaceted approach that include neuropharmacological interventions, cell-based therapies, and other promising strategies such as biomaterial scaffolds and neuro-modulation therapies. In addition, the review discusses the importance of acute clinical management, including the role of hemodynamic management as well as timing and technical aspects of surgery as key factors mitigating the secondary injury following SCI. In conclusion, this review underscores the ongoing scientific efforts to enhance patient outcomes and quality of life, focusing on upcoming strategies for the management of traumatic SCI. Each section provides a working knowledge of the fundamental preclinical and patient trials relevant to clinicians while underscoring the pathophysiologic rationale for the therapies.
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Affiliation(s)
- Gregor Fischer
- Department of Neurosurgery, Cantonal Hospital St.Gallen, Medical School of St.Gallen, St.Gallen, Switzerland
- Spine Center of Eastern Switzerland, Cantonal Hospital St.Gallen, Medical School of St.Gallen, St.Gallen, Switzerland
| | - Linda Bättig
- Department of Neurosurgery, Cantonal Hospital St.Gallen, Medical School of St.Gallen, St.Gallen, Switzerland
- Spine Center of Eastern Switzerland, Cantonal Hospital St.Gallen, Medical School of St.Gallen, St.Gallen, Switzerland
| | - Martin N. Stienen
- Department of Neurosurgery, Cantonal Hospital St.Gallen, Medical School of St.Gallen, St.Gallen, Switzerland
- Spine Center of Eastern Switzerland, Cantonal Hospital St.Gallen, Medical School of St.Gallen, St.Gallen, Switzerland
| | - Armin Curt
- Spinal Cord Injury Center, University Hospital Balgrist, Zurich, Switzerland
| | - Michael G. Fehlings
- Division of Neurosurgery and Spine Program, Department of Surgery, University of Toronto, Toronto, ON, Canada
- Division of Genetics and Development, Krembil Research Institute, University Health Network, Toronto, ON, Canada
| | - Nader Hejrati
- Department of Neurosurgery, Cantonal Hospital St.Gallen, Medical School of St.Gallen, St.Gallen, Switzerland
- Spine Center of Eastern Switzerland, Cantonal Hospital St.Gallen, Medical School of St.Gallen, St.Gallen, Switzerland
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Yan L, Li Z, Li C, Chen J, Zhou X, Cui J, Liu P, Shen C, Chen C, Hong H, Xu G, Cui Z. Hspb1 and Lgals3 in spinal neurons are closely associated with autophagy following excitotoxicity based on machine learning algorithms. PLoS One 2024; 19:e0303235. [PMID: 38728287 PMCID: PMC11086895 DOI: 10.1371/journal.pone.0303235] [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: 11/04/2023] [Accepted: 04/23/2024] [Indexed: 05/12/2024] Open
Abstract
Excitotoxicity represents the primary cause of neuronal death following spinal cord injury (SCI). While autophagy plays a critical and intricate role in SCI, the specific mechanism underlying the relationship between excitotoxicity and autophagy in SCI has been largely overlooked. In this study, we isolated primary spinal cord neurons from neonatal rats and induced excitotoxic neuronal injury by high concentrations of glutamic acid, mimicking an excitotoxic injury model. Subsequently, we performed transcriptome sequencing. Leveraging machine learning algorithms, including weighted correlation network analysis (WGCNA), random forest analysis (RF), and least absolute shrinkage and selection operator analysis (LASSO), we conducted a comprehensive investigation into key genes associated with spinal cord neuron injury. We also utilized protein-protein interaction network (PPI) analysis to identify pivotal proteins regulating key gene expression and analyzed key genes from public datasets (GSE2599, GSE20907, GSE45006, and GSE174549). Our findings revealed that six genes-Anxa2, S100a10, Ccng1, Timp1, Hspb1, and Lgals3-were significantly upregulated not only in vitro in neurons subjected to excitotoxic injury but also in rats with subacute SCI. Furthermore, Hspb1 and Lgals3 were closely linked to neuronal autophagy induced by excitotoxicity. Our findings contribute to a better understanding of excitotoxicity and autophagy, offering potential targets and a theoretical foundation for SCI diagnosis and treatment.
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Affiliation(s)
- Lei Yan
- The First People’s Hospital of Nantong, Research Institute for Spine and Spinal Cord Disease of Nantong University, The Second Affiliated Hospital of Nantong University, Nantong, China
| | - Zihao Li
- The First People’s Hospital of Nantong, Research Institute for Spine and Spinal Cord Disease of Nantong University, The Second Affiliated Hospital of Nantong University, Nantong, China
| | - Chuanbo Li
- The First People’s Hospital of Nantong, Research Institute for Spine and Spinal Cord Disease of Nantong University, The Second Affiliated Hospital of Nantong University, Nantong, China
| | - Jingyu Chen
- The First People’s Hospital of Nantong, Research Institute for Spine and Spinal Cord Disease of Nantong University, The Second Affiliated Hospital of Nantong University, Nantong, China
| | - Xun Zhou
- The First People’s Hospital of Nantong, Research Institute for Spine and Spinal Cord Disease of Nantong University, The Second Affiliated Hospital of Nantong University, Nantong, China
| | - Jiaming Cui
- The First People’s Hospital of Nantong, Research Institute for Spine and Spinal Cord Disease of Nantong University, The Second Affiliated Hospital of Nantong University, Nantong, China
| | - Peng Liu
- The First People’s Hospital of Nantong, Research Institute for Spine and Spinal Cord Disease of Nantong University, The Second Affiliated Hospital of Nantong University, Nantong, China
| | - Chong Shen
- The First People’s Hospital of Nantong, Research Institute for Spine and Spinal Cord Disease of Nantong University, The Second Affiliated Hospital of Nantong University, Nantong, China
| | - Chu Chen
- The First People’s Hospital of Nantong, Research Institute for Spine and Spinal Cord Disease of Nantong University, The Second Affiliated Hospital of Nantong University, Nantong, China
| | - Hongxiang Hong
- The First People’s Hospital of Nantong, Research Institute for Spine and Spinal Cord Disease of Nantong University, The Second Affiliated Hospital of Nantong University, Nantong, China
| | - Guanhua Xu
- The First People’s Hospital of Nantong, Research Institute for Spine and Spinal Cord Disease of Nantong University, The Second Affiliated Hospital of Nantong University, Nantong, China
| | - Zhiming Cui
- The First People’s Hospital of Nantong, Research Institute for Spine and Spinal Cord Disease of Nantong University, The Second Affiliated Hospital of Nantong University, Nantong, China
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Sintakova K, Romanyuk N. The role of small extracellular vesicles and microRNA as their cargo in the spinal cord injury pathophysiology and therapy. Front Neurosci 2024; 18:1400413. [PMID: 38774785 PMCID: PMC11106386 DOI: 10.3389/fnins.2024.1400413] [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: 03/13/2024] [Accepted: 04/16/2024] [Indexed: 05/24/2024] Open
Abstract
Spinal cord injury (SCI) is a devastating condition with a complex pathology that affects a significant portion of the population and causes long-term consequences. After primary injury, an inflammatory cascade of secondary injury occurs, followed by neuronal cell death and glial scar formation. Together with the limited regenerative capacity of the central nervous system, these are the main reasons for the poor prognosis after SCI. Despite recent advances, there is still no effective treatment. Promising therapeutic approaches include stem cells transplantation, which has demonstrated neuroprotective and immunomodulatory effects in SCI. This positive effect is thought to be mediated by small extracellular vesicles (sEVs); membrane-bound nanovesicles involved in intercellular communication through transport of functional proteins and RNA molecules. In this review, we summarize the current knowledge about sEVs and microRNA as their cargo as one of the most promising therapeutic approaches for the treatment of SCI. We provide a comprehensive overview of their role in SCI pathophysiology, neuroprotective potential and therapeutic effect.
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Affiliation(s)
- Kristyna Sintakova
- Department of Neuroregeneration, Institute of Experimental Medicine of the Czech Academy of Sciences, Prague, Czechia
- Department of Neuroscience, 2nd Faculty of Medicine, Charles University, Prague, Czechia
| | - Nataliya Romanyuk
- Department of Neuroregeneration, Institute of Experimental Medicine of the Czech Academy of Sciences, Prague, Czechia
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Sun Y, Zhao J, Liu Q, Xu Y, Qin Y, He R, Zheng L, Xie Y, Li C, Wu T, Cao Y, Duan C, Lu H, Hu J. Intranasal delivery of small extracellular vesicles from specific subpopulation of mesenchymal stem cells mitigates traumatic spinal cord injury. J Control Release 2024; 369:335-350. [PMID: 38519036 DOI: 10.1016/j.jconrel.2024.03.037] [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: 03/17/2023] [Revised: 03/14/2024] [Accepted: 03/19/2024] [Indexed: 03/24/2024]
Abstract
Vascular injury following spinal cord injury (SCI) can significantly exacerbate secondary SCI and result in neurological dysfunction. Strategies targeting angiogenesis have demonstrated potential in enhancing functional recovery post-SCI. In the context of angiogenesis, the CD146+ and CD271+ subpopulations of mesenchymal stem cells (MSCs) have been recognized for their angiogenic capabilities in tissue repair. Small extracellular vesicles (sEVs) derived from MSCs are nanoscale vesicles containing rich bioactive components that play a crucial role in tissue regeneration. However, the precise role of sEVs derived from CD146+CD271+ UCMSCs (CD146+CD271+ UCMSC-sEVs) in SCI remain unclear. In this study, CD146+CD271+ UCMSC-sEVs were non-invasively administered via intranasal delivery, demonstrating a significant capacity to stimulate angiogenesis and improve functional recovery in mice following SCI. Furthermore, in vitro assessments revealed the effective enhancement of migration and tube formation capabilities of the murine brain microvascular endothelial cell line (bEnd.3) by CD146+CD271+UCMSC-sEVs. MicroRNA array analysis confirmed significant enrichment of multiple microRNAs within CD146+CD271+ UCMSC-sEVs. Subsequent in vivo and in vitro experiments demonstrated that CD146+CD271+ UCMSC-sEVs promote enhanced angiogenesis and improved functional recovery mediated by miR-27a-3p. Further mechanistic studies revealed that miR-27a-3p sourced from CD146+CD271+ UCMSC-sEVs enhances migration and tube formation of bEnd.3 cells in vitro by suppressing the expression of Delta Like Canonical Notch Ligand 4 (DLL4), thereby promoting angiogenesis in vivo. Collectively, our results demonstrate that a crucial role of CD146+CD271+ UCMSC-sEVs in inhibiting DLL4 through the transfer of miR-27a-3p, which leads to the promotion of angiogenesis and improved functional recovery after SCI.
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Affiliation(s)
- Yi Sun
- Department of Spine Surgery and Orthopaedics, Xiangya Hospital, Central South University, Xiangya Road 87, Changsha 410008, China; Key Laboratory of Organ Injury, Aging and Regenerative Medicine of Hunan Province, Xiangya Road 87, Changsha 410008, China; Hunan Engineering Research Center of Sports and Health, Changsha 410008, China; National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Xiangya Road 87, Changsha 410008, China
| | - Jinyun Zhao
- Department of Spine Surgery and Orthopaedics, Xiangya Hospital, Central South University, Xiangya Road 87, Changsha 410008, China; Key Laboratory of Organ Injury, Aging and Regenerative Medicine of Hunan Province, Xiangya Road 87, Changsha 410008, China; Hunan Engineering Research Center of Sports and Health, Changsha 410008, China; National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Xiangya Road 87, Changsha 410008, China
| | - Quanbo Liu
- Department of Spine Surgery and Orthopaedics, Xiangya Hospital, Central South University, Xiangya Road 87, Changsha 410008, China; Key Laboratory of Organ Injury, Aging and Regenerative Medicine of Hunan Province, Xiangya Road 87, Changsha 410008, China; Hunan Engineering Research Center of Sports and Health, Changsha 410008, China; National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Xiangya Road 87, Changsha 410008, China
| | - Yan Xu
- Department of Sports Medicine, Xiangya Hospital, Central South University, Xiangya Road 87, Changsha 410008, China; Key Laboratory of Organ Injury, Aging and Regenerative Medicine of Hunan Province, Xiangya Road 87, Changsha 410008, China; Hunan Engineering Research Center of Sports and Health, Changsha 410008, China; National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Xiangya Road 87, Changsha 410008, China
| | - Yiming Qin
- Department of Spine Surgery and Orthopaedics, Xiangya Hospital, Central South University, Xiangya Road 87, Changsha 410008, China; Key Laboratory of Organ Injury, Aging and Regenerative Medicine of Hunan Province, Xiangya Road 87, Changsha 410008, China; Hunan Engineering Research Center of Sports and Health, Changsha 410008, China; National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Xiangya Road 87, Changsha 410008, China
| | - Rundong He
- Department of Spine Surgery and Orthopaedics, Xiangya Hospital, Central South University, Xiangya Road 87, Changsha 410008, China; Key Laboratory of Organ Injury, Aging and Regenerative Medicine of Hunan Province, Xiangya Road 87, Changsha 410008, China; Hunan Engineering Research Center of Sports and Health, Changsha 410008, China; National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Xiangya Road 87, Changsha 410008, China
| | - Lifu Zheng
- Department of Spine Surgery and Orthopaedics, Xiangya Hospital, Central South University, Xiangya Road 87, Changsha 410008, China; Key Laboratory of Organ Injury, Aging and Regenerative Medicine of Hunan Province, Xiangya Road 87, Changsha 410008, China; Hunan Engineering Research Center of Sports and Health, Changsha 410008, China; National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Xiangya Road 87, Changsha 410008, China
| | - Yong Xie
- Department of Spine Surgery and Orthopaedics, Xiangya Hospital, Central South University, Xiangya Road 87, Changsha 410008, China; Key Laboratory of Organ Injury, Aging and Regenerative Medicine of Hunan Province, Xiangya Road 87, Changsha 410008, China; Hunan Engineering Research Center of Sports and Health, Changsha 410008, China; National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Xiangya Road 87, Changsha 410008, China
| | - Chengjun Li
- Department of Spine Surgery and Orthopaedics, Xiangya Hospital, Central South University, Xiangya Road 87, Changsha 410008, China; Key Laboratory of Organ Injury, Aging and Regenerative Medicine of Hunan Province, Xiangya Road 87, Changsha 410008, China; Hunan Engineering Research Center of Sports and Health, Changsha 410008, China; National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Xiangya Road 87, Changsha 410008, China
| | - Tianding Wu
- Department of Spine Surgery and Orthopaedics, Xiangya Hospital, Central South University, Xiangya Road 87, Changsha 410008, China; Key Laboratory of Organ Injury, Aging and Regenerative Medicine of Hunan Province, Xiangya Road 87, Changsha 410008, China; Hunan Engineering Research Center of Sports and Health, Changsha 410008, China; National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Xiangya Road 87, Changsha 410008, China
| | - Yong Cao
- Department of Spine Surgery and Orthopaedics, Xiangya Hospital, Central South University, Xiangya Road 87, Changsha 410008, China; Key Laboratory of Organ Injury, Aging and Regenerative Medicine of Hunan Province, Xiangya Road 87, Changsha 410008, China; Hunan Engineering Research Center of Sports and Health, Changsha 410008, China; National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Xiangya Road 87, Changsha 410008, China
| | - Chunyue Duan
- Department of Spine Surgery and Orthopaedics, Xiangya Hospital, Central South University, Xiangya Road 87, Changsha 410008, China; Key Laboratory of Organ Injury, Aging and Regenerative Medicine of Hunan Province, Xiangya Road 87, Changsha 410008, China; Hunan Engineering Research Center of Sports and Health, Changsha 410008, China; National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Xiangya Road 87, Changsha 410008, China
| | - Hongbin Lu
- Department of Sports Medicine, Xiangya Hospital, Central South University, Xiangya Road 87, Changsha 410008, China; Key Laboratory of Organ Injury, Aging and Regenerative Medicine of Hunan Province, Xiangya Road 87, Changsha 410008, China; Hunan Engineering Research Center of Sports and Health, Changsha 410008, China; National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Xiangya Road 87, Changsha 410008, China.
| | - Jianzhong Hu
- Department of Spine Surgery and Orthopaedics, Xiangya Hospital, Central South University, Xiangya Road 87, Changsha 410008, China; Key Laboratory of Organ Injury, Aging and Regenerative Medicine of Hunan Province, Xiangya Road 87, Changsha 410008, China; Hunan Engineering Research Center of Sports and Health, Changsha 410008, China; National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Xiangya Road 87, Changsha 410008, China.
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Sun JY, Zhao N, Chen H, Chen CH. Thoracolumbar fractures patients undergoing posterior pedicle screw fixation can benefit from drainage. BMC Musculoskelet Disord 2024; 25:343. [PMID: 38693479 PMCID: PMC11061928 DOI: 10.1186/s12891-024-07447-5] [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: 10/29/2023] [Accepted: 04/16/2024] [Indexed: 05/03/2024] Open
Abstract
PURPOSE To explore whether it is necessary to put drain tubes after posterior pedicle screw fixation of thoracolumbar fractures. METHODS From April 2020 to January 2023, a total of 291 patients with recent thoracolumbar fractures (AO type-A or type-B) who received the pedicle screw fixation operation were enrolled retrospectively. In 77 patients, drain tubes were used in the pedicle screw fixation surgery, while no drain tubes were placed in the other group. After gleaning demographic information and results of lab examination and imageology examination, all data were put into a database. Independent-sample t-tests, Pearson Chi-Square tests, Linear regression analysis, and correlation analysis were then performed. RESULTS Compared to the control group, the drainage group had significantly lower postoperative CRP levels (P = 0.047), less use of antipyretics (P = 0.035), higher ADL scores (P = 0.001), and lower NRS scores (P < 0.001) on the 6th day after surgery. Other investigation items, such as demographic information, operation time, intraoperative blood loss, body temperature, and other preoperative and postoperative lab results, showed no significant differences. CONCLUSIONS The use of a drain tube in the pedicle screw fixation of thoracolumbar fractures is correlated with the improvement of patients' living and activity ability and the reduction of inflammation, postoperative fever and pain.
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Affiliation(s)
- Jing-Yu Sun
- Department of Orthopaedic Surgery, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, 109 Xueyuanxi Road , Wenzhou, Zhejiang, 325000, China
| | - Ning Zhao
- Department of Orthopaedic Surgery, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, 109 Xueyuanxi Road , Wenzhou, Zhejiang, 325000, China
| | - Hua Chen
- Department of Orthopaedic Surgery, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, 109 Xueyuanxi Road , Wenzhou, Zhejiang, 325000, China
| | - Chun-Hui Chen
- Department of Orthopaedic Surgery, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, 109 Xueyuanxi Road , Wenzhou, Zhejiang, 325000, China.
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