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He K, Yu H, Zhang J, Wu L, Han D, Ma R. A bibliometric analysis of the research hotspots and frontiers related to cell death in spinal cord injury. Front Neurol 2024; 14:1280908. [PMID: 38249747 PMCID: PMC10797099 DOI: 10.3389/fneur.2023.1280908] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2023] [Accepted: 12/14/2023] [Indexed: 01/23/2024] Open
Abstract
Background Spinal cord injury (SCI) is a severe central nervous trauma that can cause serious consequences. Cell death is emerging as a common pathogenesis after SCI. In the last two decades, numerous studies have been published in the field of cell death after SCI. However, it is still rare to find relevant bibliometric analyses. This bibliometric study aims to visually represent global research trends in the field of cell death after SCI. Methods Bibliometric data were sourced from the Web of Science Core Collection (WoSCC) database. VOSviewer, CiteSpace, and R software ("bibliometrix" package) were used to analyze and visualize bibliometric data. Annual scientific production, countries/regions, institutions, authors, journals, highly cited papers, keywords, and literature co-citation were evaluated to determine research performance. Results An analysis of 5,078 publications extracted from the WoSCC database revealed a fluctuating yet persistent growth in the field of cell death after SCI over the past 23 years. China and the United States, contributing 69% of the total publications, were the main driving force in this field. The Wenzhou Medical University from China contributed to the most papers. In terms of authors, Salvatore Cuzzocrea from the University of Messina had the highest number of publications. The "Journal of Neurotrauma" was the top journal in terms of the number of publications, however, the "Journal of Neuroscience" was the top journal in terms of the number of citations. The theme of the highly cited articles mainly focused on the mechanism of cell death after SCI. The keyword and literature co-citation analysis mainly focused on the mode of cell death, mechanism research of cell death, and functional recovery after SCI. Conclusion This study analyzes the research hotspots, frontiers, and development trends in the field of cell death after SCI, which is important for future studies.
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Affiliation(s)
- Kelin He
- Department of Acupuncture and Moxibustion, The Third Affiliated Hospital of Zhejiang Chinese Medical University (Zhongshan Hospital of Zhejiang Province), Hangzhou, Zhejiang, China
- Key Laboratory of Acupuncture and Neurology of Zhejiang Province, The Third School of Clinical Medicine (School of Rehabilitation Medicine), Zhejiang Chinese Medical University, Hangzhou, Zhejiang, China
| | - Han Yu
- Key Laboratory of Acupuncture and Neurology of Zhejiang Province, The Third School of Clinical Medicine (School of Rehabilitation Medicine), Zhejiang Chinese Medical University, Hangzhou, Zhejiang, China
| | - Jieqi Zhang
- Key Laboratory of Acupuncture and Neurology of Zhejiang Province, The Third School of Clinical Medicine (School of Rehabilitation Medicine), Zhejiang Chinese Medical University, Hangzhou, Zhejiang, China
| | - Lei Wu
- Department of Acupuncture and Moxibustion, The Third Affiliated Hospital of Zhejiang Chinese Medical University (Zhongshan Hospital of Zhejiang Province), Hangzhou, Zhejiang, China
| | - Dexiong Han
- Department of Acupuncture and Moxibustion, The Third Affiliated Hospital of Zhejiang Chinese Medical University (Zhongshan Hospital of Zhejiang Province), Hangzhou, Zhejiang, China
| | - Ruijie Ma
- Department of Acupuncture and Moxibustion, The Third Affiliated Hospital of Zhejiang Chinese Medical University (Zhongshan Hospital of Zhejiang Province), Hangzhou, Zhejiang, China
- Key Laboratory of Acupuncture and Neurology of Zhejiang Province, The Third School of Clinical Medicine (School of Rehabilitation Medicine), Zhejiang Chinese Medical University, Hangzhou, Zhejiang, China
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Li Y, Zou Z, An J, Liu X, Wu Q, Sun J, Liu X, Du J, Xiong Y, Wu C, Mei X, Tian H. Folic acid-functionalized chitosan nanoparticles with bioenzyme activity for the treatment of spinal cord injury. Eur J Pharm Sci 2024; 192:106667. [PMID: 38061663 DOI: 10.1016/j.ejps.2023.106667] [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: 07/02/2023] [Revised: 11/03/2023] [Accepted: 12/05/2023] [Indexed: 12/22/2023]
Abstract
Spinal cord injury (SCI) is a central system disease with a high rate of disability. Pathological changes such as ischemia and hypoxia of local tissues, oxidative stress and apoptosis could lead to limb pain, paralysis and even life-threatening. It was reported that catalase (CAT) was the main antioxidant in organisms, which could remove reactive oxygen species (ROS) and release oxygen (O2). However, the efficacy of the drug is largely limited due to its poor stability, low bioavailability and inability to cross the blood spinal cord barrier (BSCB). Therefore, in this study, we prepared folic acid-functionalized chitosan nanoparticles to deliver CAT (FA-CSNCAT) for solving this problem. In vivo small animal imaging results showed that FA-CSN could carry CAT across the BSCB and target to the inflammatory site. In addition, Immunofluorescence, ROS assay and JC-1 probe were used to detect the therapeutic effect of FA-CSNCAT in vitro and in vivo. The results showed that FA-CSNCAT could alleviate the hypoxic environment at the injured site and remove ROS, thereby inhibiting oxidative stress and protecting neurons, which may provide a new idea for clinical medication of SCI.
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Affiliation(s)
- Yingqiao Li
- Pharmacy School, Jinzhou Medical University, Jinzhou, Liaoning 121001, China; Liaoning Provincial Collaborative Innovation Center for Medical Testing and Drug Research, Jinzhou Medical University, Jinzhou, Liaoning 121001, China
| | - Zhiru Zou
- Pharmacy School, Jinzhou Medical University, Jinzhou, Liaoning 121001, China; Liaoning Provincial Collaborative Innovation Center for Medical Testing and Drug Research, Jinzhou Medical University, Jinzhou, Liaoning 121001, China
| | - Jinyu An
- Pharmacy School, Jinzhou Medical University, Jinzhou, Liaoning 121001, China; Liaoning Provincial Collaborative Innovation Center for Medical Testing and Drug Research, Jinzhou Medical University, Jinzhou, Liaoning 121001, China
| | - Xiaoyao Liu
- Pharmacy School, Jinzhou Medical University, Jinzhou, Liaoning 121001, China; Liaoning Provincial Collaborative Innovation Center for Medical Testing and Drug Research, Jinzhou Medical University, Jinzhou, Liaoning 121001, China
| | - Qian Wu
- Pharmacy School, Jinzhou Medical University, Jinzhou, Liaoning 121001, China; Liaoning Provincial Collaborative Innovation Center for Medical Testing and Drug Research, Jinzhou Medical University, Jinzhou, Liaoning 121001, China
| | - Junpeng Sun
- Pharmacy School, Jinzhou Medical University, Jinzhou, Liaoning 121001, China; Liaoning Provincial Collaborative Innovation Center for Medical Testing and Drug Research, Jinzhou Medical University, Jinzhou, Liaoning 121001, China
| | - Xiaobang Liu
- Pharmacy School, Jinzhou Medical University, Jinzhou, Liaoning 121001, China; Liaoning Provincial Collaborative Innovation Center for Medical Testing and Drug Research, Jinzhou Medical University, Jinzhou, Liaoning 121001, China
| | - Jiaqun Du
- Pharmacy School, Jinzhou Medical University, Jinzhou, Liaoning 121001, China; Liaoning Provincial Collaborative Innovation Center for Medical Testing and Drug Research, Jinzhou Medical University, Jinzhou, Liaoning 121001, China
| | - Ying Xiong
- Normandie Université, ENSICAEN, UNICAEN, CNRS, Laboratoire Catalyse et Spectrochimie (LCS), 14050, Caen, France
| | - Chao Wu
- Pharmacy School, Jinzhou Medical University, Jinzhou, Liaoning 121001, China; Liaoning Provincial Collaborative Innovation Center for Medical Testing and Drug Research, Jinzhou Medical University, Jinzhou, Liaoning 121001, China.
| | - Xifan Mei
- Liaoning Provincial Collaborative Innovation Center for Medical Testing and Drug Research, Jinzhou Medical University, Jinzhou, Liaoning 121001, China; The Third Affiliated Hospital of Jinzhou Medical University, Jinzhou, Liaoning 121001, China; Key Laboratory of Medical Tissue Engineering of Liaoning Province, Jinzhou Medical University, Jinzhou, Liaoning, 121001, China.
| | - He Tian
- Liaoning Provincial Collaborative Innovation Center for Medical Testing and Drug Research, Jinzhou Medical University, Jinzhou, Liaoning 121001, China; Key Laboratory of Medical Tissue Engineering of Liaoning Province, Jinzhou Medical University, Jinzhou, Liaoning, 121001, China; School of Basic Medicine, Jinzhou Medical University, Jinzhou, Liaoning 121001, China.
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Gao K, Shao W, Wei T, Yan Z, Li N, Lv C. Wnt-3a improves functional recovery after spinal cord injury by regulating the inflammatory and apoptotic response in rats via wnt/β-catenin signaling pathway. Brain Res 2024; 1822:148637. [PMID: 37858855 DOI: 10.1016/j.brainres.2023.148637] [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: 06/06/2023] [Revised: 09/29/2023] [Accepted: 10/16/2023] [Indexed: 10/21/2023]
Abstract
The specific molecular mechanism of neuroprotective effects of wnt-3a on spinal cord injury (SCI) has not been elucidated. In our study, we evaluated the recovery of motor function after SCI by BBB, observed neuronal apoptosis by western blot and TUNEL, observed the changes of neuronal inflammation by western blot and immunofluorescence staining, and observed the changes of motoneurons and spinal cord area in the anterior horn of the spinal cord via Nissl and HE staining. We found that wnt-3a could significantly promote the recovery of motor function, reduce the loss of motor neurons in the anterior horn of the spinal cord, promote the recovery of injured spinal cord tissue, inhibit neuronal apoptosis and inflammatory response, and ultimately promote neuronal function after SCI. However, when XAV939 inhibits the wnt/β-catenin signaling pathway, the neuroprotective effects of wnt-3a are also significantly inhibited. The above results together indicated that wnt-3a exerts its neuroprotective effect on after SCI via activating the wnt/β-catenin signaling pathway.
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Affiliation(s)
- Kai Gao
- Postdoctoral of Shandong University of Traditional Chinese Medicine, Jinan, China; Department of Orthopedics, Jining No.1 People's Hospital, Jining, China
| | - Wenbo Shao
- Department of Orthopedics, Jining No.2 People's Hospital, Jining, China
| | - Tian Wei
- School of Clinical Medicine, Shandong University of Traditional Chinese Medicine, Jinan, China
| | - Zihan Yan
- School of Clinical Medicine, Jining Medical University, Jining, China
| | - Nianhu Li
- Postdoctoral of Shandong University of Traditional Chinese Medicine, Jinan, China; Department of Orthopedics, Affiliated Hospital of Shandong University of Traditional Chinese Medicine, China.
| | - Chaoliang Lv
- Department of Orthopedics, Jining No.1 People's Hospital, Jining, China; School of Clinical Medicine, Jining Medical University, Jining, China.
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Hu Y, Zhao H, Shi S, Zhao Y, Gao X, Sun J, Li Z, Yao H. Effects of electroacupuncture on glial scar generation in SCI model rats. Anat Rec (Hoboken) 2023; 306:3156-3168. [PMID: 36866416 DOI: 10.1002/ar.25132] [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: 07/04/2022] [Revised: 11/04/2022] [Accepted: 11/15/2022] [Indexed: 03/04/2023]
Abstract
Spinal cord injury (SCI) is a commonly occurring and severe form of central nervous system (CNS) injury. Previous studies have demonstrated that electroacupuncture (EA) therapy promotes recovery from SCI. In this study, we observed changes in the glial scars of rats with SCI to gain insight into how EA therapy positively influences locomotor function. The experimental rats were randomly divided into three groups: the sham group, the SCI group and the SCI + EA group. Rats in the SCI + EA group received a 28-day treatment course using the Dazhui (GV14) acupoint and the Mingmen (GV4) acupoint for 20 min/day. The Basso-Beattie-Bresnahan (BBB) score was used to estimate the neural function of rats in all groups. We found that before sacrifice on Day 28, the BBB score was significantly improved in the SCI + EA group, which was higher than that observed in the SCI group. Hematoxylin-eosin staining revealed morphological improvements in spinal cord tissues of the rats in the EA + SCI group with reduced glial scars and cavities. Based on immunofluorescence staining, reactive astrocytes overpopulated both the SCI and SCI + EA groups following SCI. Moreover, improved generation of reactive astrocytes at lesions was observed in the SCI + EA group compared with the SCI group. After treatment, EA inhibited glial scar generation. EA effectively downregulated fibrillary acidic protein (GFAP) and vimentin protein and mRNA expression levels, according to the results from Western blot assays and reverse transcription-polymerase chain reaction (RT-PCR). We hypothesized that these findings described might represent the mechanism underlying EA inhibition of glial scar generation, morphological improvements in tissues and promotion of neural recovery from SCI in rats.
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Affiliation(s)
- Yu Hu
- School of Acupuncture-Moxibustion and Tuina, Beijing University of Chinese Medicine, Beijing, People's Republic of China
| | - Haobin Zhao
- School of Traditional Chinese Medicine, Beijing University of Chinese Medicine, Beijing, People's Republic of China
| | - Suhua Shi
- Department of Rehabilitation, The Third Affiliated Hospital of Beijing University of Chinese Medicine, Beijing, People's Republic of China
| | - Yali Zhao
- School of Acupuncture-Moxibustion and Tuina, Beijing University of Chinese Medicine, Beijing, People's Republic of China
| | - Xiaoming Gao
- School of Acupuncture-Moxibustion and Tuina, Beijing University of Chinese Medicine, Beijing, People's Republic of China
| | - Jingwen Sun
- School of Acupuncture-Moxibustion and Tuina, Beijing University of Chinese Medicine, Beijing, People's Republic of China
| | - Zhigang Li
- School of Acupuncture-Moxibustion and Tuina, Beijing University of Chinese Medicine, Beijing, People's Republic of China
| | - Haijiang Yao
- Treatment Center of Traditional Chinese Medicine, Beijing Bo'ai Hospital, China Rehabilitation Research Center, School of Rehabilitation, Capital Medical University, Beijing, People's Republic of China
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Mi X, Ni C, Zhao J, Amin N, Jiao D, Fang M, Ye X. P2Y12 receptor mediates apoptosis and demyelination to affect functional recovery in mice with spinal cord injury. Neurochem Int 2023; 171:105641. [PMID: 37952830 DOI: 10.1016/j.neuint.2023.105641] [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: 03/10/2023] [Revised: 09/28/2023] [Accepted: 11/06/2023] [Indexed: 11/14/2023]
Abstract
Among diseases of the central nervous system (CNS), spinal cord injury (SCI) has a high fatality rate. It has been proven that P2Y G protein-coupled purinergic receptors have a neuroprotective role in apoptosis and regeneration inside the damaged spinal cord. The P2Y12 receptor (P2Y12R) has recently been linked to peripheral neuropathy and stroke. However, the role of P2Y12R after SCI remains unclear. Our study randomly divided C57BL/6J female mice into 3 groups: Sham+DMSO, SCI+DMSO, and SCI+MRS2395. MRS2395 as a P2Y12R inhibitor was intraperitoneally injected at a dose of 1.5 mg/kg once daily for 7 days. We showed that the P2Y12R was markedly activated after injury, and it was double labeled with the microglial and neuron. Behavioral tests were employed to assess motor function recovery. By using immunofluorescence staining, the NeuN expression level was detected. The morphology of neurons was observed by hematoxylin-eosin and Nissl staining. P2Y12R, Bax, GFAP, PCNA and calbindin expression levels were detected using Western blot. Meanwhile, mitochondria and myelin sheath were observed by transmission electron microscopy (TEM). Our findings demonstrated that MRS2395 significantly enhanced motor function induced by SCI and that was used to alleviate apoptosis and astrocyte scarring. NeuN positive cells in the SCI group were lower than in the therapy group, although Bax, GFAP, PCNA and calbindin expression levels were considerably higher. Moreover, following MRS2395 therapy, the histological damage was reversed. A notable improvement in myelin sheath and mitochondrial morphology was seen in the therapy group. Together, our findings indicate that activation of P2Y12R in damaged spinal cord may be a critical event and suggest that inhibition of P2Y12R might be a feasible therapeutic strategy for treating SCI.
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Affiliation(s)
- Xiaodan Mi
- Center for Rehabilitation Medicine, Rehabilitation & Sports Medicine Research Institute of Zhejiang Province, Department of Rehabilitation Medicine, Zhejiang Provincial People's Hospital Affiliated People's Hospital, Hangzhou Medical College, Hangzhou, Zhejiang, 310014, China
| | - Chengtao Ni
- Graduate School, Bengbu Medical College, Bengbu, Anhui, China
| | - Jingting Zhao
- Center for Rehabilitation Medicine, Rehabilitation & Sports Medicine Research Institute of Zhejiang Province, Department of Rehabilitation Medicine, Zhejiang Provincial People's Hospital Affiliated People's Hospital, Hangzhou Medical College, Hangzhou, Zhejiang, 310014, China
| | - Nashwa Amin
- Zhejiang Provincial People's Hospital, Affiliated People's Hospital, Hangzhou Medical College, Hangzhou, Zhejiang, 310014, China; Institute of System Medicine, Zhejiang University School of Medicine, Hangzhou, China; Department of Zoology, Faculty of Science, Aswan University, Egypt
| | - Dian Jiao
- College of Biotechnology and Bioengineering, Zhejiang University of Technology, Hangzhou, China
| | - Marong Fang
- Children's Hospital of Zhejiang University School of Medicine, National Clinical Research Center for Child Health, Hangzhou, China.
| | - Xiangming Ye
- Center for Rehabilitation Medicine, Rehabilitation & Sports Medicine Research Institute of Zhejiang Province, Department of Rehabilitation Medicine, Zhejiang Provincial People's Hospital Affiliated People's Hospital, Hangzhou Medical College, Hangzhou, Zhejiang, 310014, China.
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Yin X, Lin S, Xiong Y, Zhang P, Mei X. Biomimetic nanoplatform with anti-inflammation and neuroprotective effects for repairing spinal cord injury in mice. Mater Today Bio 2023; 23:100836. [PMID: 38046275 PMCID: PMC10689280 DOI: 10.1016/j.mtbio.2023.100836] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2023] [Revised: 10/07/2023] [Accepted: 10/14/2023] [Indexed: 12/05/2023] Open
Abstract
Regeneration in the therapeutics of spinal cord injury (SCI) remains a challenge caused by the hyperinflammation microenvironment. Nanomaterials-based treatment strategies for diseases with excellent therapeutic efficacy are actively pursued. Here, we develop biodegradable poly (lactic-co-glycolic acid) nanoparticles (PLGA) obtained by loading celastrol (pCel) for SCI thrapy. Cel, as an antioxidant drug, facilitated reactive oxygen species (ROS) scavenging, and decreased the generation of pro-inflammatory cytokines. To facilitate its administration, pCel is formulated into microspheres by oil-in-water (O/W) emulsion/solvent evaporation technique. The constructed pCel can induced polarization of macrophages and obviously improved lipopolysaccharide (LPS) and interferon-γ (IFN-γ)-induced mitochondrial dysfunction, and increased neurite length in PC12 cells and primary neurons. In vivo experiments revealed that pCel regulated the phenotypic polarization of macrophages, prevented the release of pro-inflammatory cytokines, promoted myelin regeneration and inhibited scar tissue formation, and further improve motor function. These findings indicated that the neuroprotective effect of this artificial biodegradable nanoplatform is benefit for the therapy of SCI. This research opens an exciting perspective for the application of SCI treatment and supports the clinical significance of pCel.
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Affiliation(s)
- Xuechen Yin
- Department of Laboratory Medicine, Third Affiliated Hospital of Jinzhou Medical University, Jinzhou, China
| | - Sen Lin
- Department of Orthopedic, Third Affiliated Hospital of Jinzhou Medical University, Jinzhou, China
| | - Ying Xiong
- Normandie Université, ENSICAEN, UNICAEN, CNRS, Laboratoire Catalyse et Spectrochimie (LCS), France
| | - Peng Zhang
- Department of Orthopedic, Third Affiliated Hospital of Jinzhou Medical University, Jinzhou, China
| | - Xifan Mei
- Department of Orthopedic, Third Affiliated Hospital of Jinzhou Medical University, Jinzhou, China
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Tian Z, Li Q, Gao S, Meng C. Transient spinal cord dysfunction after surgery for intraspinal tumors: A case report. Medicine (Baltimore) 2023; 102:e35970. [PMID: 37960788 PMCID: PMC10637440 DOI: 10.1097/md.0000000000035970] [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: 07/19/2023] [Accepted: 10/16/2023] [Indexed: 11/15/2023] Open
Abstract
RATIONALE Limb dysfunction is not uncommon clinically after intramural tumor surgery. However, there are no relevant literature reports on the recovery of unilateral motor function caused by spinal cord dysfunction after short-term observation and treatment. The report of such cases is of great value for improving the cognition of postoperative complications of meningioma reducing misdiagnosis and providing reference for clinical treatment. PATIENT CONCERNS A 73-year-old female patient with numbness and weakness in both lower limbs accompanied by unstable walking for 2 months. Combined with imaging data and postoperative pathological diagnosis, it was diagnosed as thoracic spinal meningioma. The patient experienced transient unilateral limb dysfunction after surgery. DIAGNOSES Magnetic resonance imaging and its enhanced magnetic resonance imaging suggest a space occupying lesion on the left side of the spinal canal at the level of the thoracic 3 to 4 vertebral body, possibly a meningioma. The postoperative pathology was grade I meningioma. INTERVENTION Administer 10 mL of dexamethasone, 1 g of methylprednisolone, and 250 mL of mannitol for treatment. OUTCOMES After 3 hours, the patient's muscle strength gradually recovered, and after 12 hours, it was better than the preoperative level. CONCLUSION Spinal cord dysfunction may occur after surgery for intraspinal meningioma in the upper thoracic spine. Unlike spinal cord dysfunction caused by spinal cord injury, this dysfunction is short-term and transient. The use of hormones and diuretics is a feasible solution that can quickly restore patient limb function.
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Affiliation(s)
| | - Qingwei Li
- Affiliated Hospital of Jining Medical University, Jining, China
| | - Sheng Gao
- Affiliated Hospital of Jining Medical University, Jining, China
| | - Chunyang Meng
- Affiliated Hospital of Jining Medical University, Jining, China
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Xuan L, Hu Z, Jiang Z, Zhang C, Sun X, Ming W, Liu H, Qiao R, Shen L, Liu S, Wang G, Wen L, Luan Z, Yin J. Pregnane X receptor (PXR) deficiency protects against spinal cord injury by activating NRF2/HO-1 pathway. CNS Neurosci Ther 2023; 29:3460-3478. [PMID: 37269088 PMCID: PMC10580351 DOI: 10.1111/cns.14279] [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: 10/28/2022] [Revised: 05/12/2023] [Accepted: 05/14/2023] [Indexed: 06/04/2023] Open
Abstract
INTRODUCTION As a devastating neurological disease, spinal cord injury (SCI) results in severe tissue loss and neurological dysfunction. Pregnane X receptor (PXR) is a ligand-activated nuclear receptor with a major regulatory role in xenobiotic and endobiotic metabolism and recently has been implicated in the central nervous system. In the present study, we aimed to investigate the role and mechanism of PXR in SCI. METHODS The clip-compressive SCI model was performed in male wild-type C57BL/6 (PXR+/+ ) and PXR-knockout (PXR-/- ) mice. The N2a H2 O2 -induced injury model mimicked the pathological process of SCI in vitro. Pregnenolone 16α-carbonitrile (PCN), a mouse-specific PXR agonist, was used to activate PXR in vivo and in vitro. The siRNA was applied to knock down the PXR expression in vitro. Transcriptome sequencing analysis was performed to discover the relevant mechanism, and the NRF2 inhibitor ML385 was used to validate the involvement of PXR in influencing the NRF2/HO-1 pathway in the SCI process. RESULTS The expression of PXR decreased after SCI and reached a minimum on the third day. In vivo, PXR knockout significantly improved the motor function of mice after SCI, meanwhile, inhibited apoptosis, inflammation, and oxidative stress induced by SCI. On the contrary, activation of PXR by PCN negatively influenced the recovery of SCI. Mechanistically, transcriptome sequencing analysis revealed that PXR activation downregulated the mRNA level of heme oxygenase-1 (HO-1) after SCI. We further verified that PXR deficiency activated the NRF2/HO-1 pathway and PXR activation inhibited this pathway in vitro. CONCLUSION PXR is involved in the recovery of motor function after SCI by regulating NRF2/HO-1 pathway.
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Affiliation(s)
- Li‐Na Xuan
- Department of Neurosurgerythe Second Affiliated Hospital of Dalian Medical UniversityDalianChina
- Epileptic Center of Liaoningthe Second Affiliated Hospital of Dalian Medical UniversityDalianChina
| | - Zhen‐Xin Hu
- Department of OrthopedicsThe First Affiliated Hospital of Dalian Medical UniversityDalianChina
| | - Zhen‐Fu Jiang
- Department of Neurosurgerythe Second Affiliated Hospital of Dalian Medical UniversityDalianChina
- Epileptic Center of Liaoningthe Second Affiliated Hospital of Dalian Medical UniversityDalianChina
| | - Cong Zhang
- Advanced Institute for Medical SciencesDalian Medical UniversityDalianChina
| | - Xiao‐Wan Sun
- Advanced Institute for Medical SciencesDalian Medical UniversityDalianChina
| | - Wen‐Hua Ming
- Advanced Institute for Medical SciencesDalian Medical UniversityDalianChina
| | - Hui‐Tao Liu
- Department of OrthopedicsTaizhou Hospital of Zhejiang ProvinceLinhaiChina
| | - Rong‐Fang Qiao
- Advanced Institute for Medical SciencesDalian Medical UniversityDalianChina
| | - Lin‐Jie Shen
- Department of GastroenterologyNingbo First HospitalNingboChina
| | - Shao‐Bo Liu
- Department of Neurosurgerythe Second Affiliated Hospital of Dalian Medical UniversityDalianChina
- Epileptic Center of Liaoningthe Second Affiliated Hospital of Dalian Medical UniversityDalianChina
| | - Guan‐Yu Wang
- Department of Neurosurgerythe Second Affiliated Hospital of Dalian Medical UniversityDalianChina
- Epileptic Center of Liaoningthe Second Affiliated Hospital of Dalian Medical UniversityDalianChina
| | - Lin Wen
- Advanced Institute for Medical SciencesDalian Medical UniversityDalianChina
| | - Zhi‐Lin Luan
- Advanced Institute for Medical SciencesDalian Medical UniversityDalianChina
- Dalian Key Laboratory for Nuclear Receptors in Major Metabolic DiseasesDalianChina
| | - Jian Yin
- Department of Neurosurgerythe Second Affiliated Hospital of Dalian Medical UniversityDalianChina
- Epileptic Center of Liaoningthe Second Affiliated Hospital of Dalian Medical UniversityDalianChina
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Chen SY, Yang RL, Wu XC, Zhao DZ, Fu SP, Lin FQ, Li LY, Yu LM, Zhang Q, Zhang T. Mesenchymal Stem Cell Transplantation: Neuroprotection and Nerve Regeneration After Spinal Cord Injury. J Inflamm Res 2023; 16:4763-4776. [PMID: 37881652 PMCID: PMC10595983 DOI: 10.2147/jir.s428425] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2023] [Accepted: 10/03/2023] [Indexed: 10/27/2023] Open
Abstract
Spinal Cord Injury (SCI), with its morbidity characteristics of high disability rate and high mortality rate, is a disease that is highly destructive to both the physiology and psychology of the patient, and for which there is still a lack of effective treatment. Following spinal cord injury, a cascade of secondary injury reactions known as ischemia, peripheral inflammatory cell infiltration, oxidative stress, etc. create a microenvironment that is unfavorable to neural recovery and ultimately results in apoptosis and necrosis of neurons and glial cells. Mesenchymal stem cell (MSC) transplantation has emerged as a more promising therapeutic options in recent years. MSC can promote spinal cord injury repair through a variety of mechanisms, including immunomodulation, neuroprotection, and nerve regeneration, giving patients with spinal cord injury hope. In this paper, it is discussed the neuroprotection and nerve regeneration components of MSCs' therapeutic method for treating spinal cord injuries.
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Affiliation(s)
- Si-Yu Chen
- Key Laboratory of Cell Engineering of Guizhou Province, Affiliated Hospital of Zunyi Medical University, Zunyi, Guizhou, People’s Republic of China
| | - Rui-Lin Yang
- Key Laboratory of Cell Engineering of Guizhou Province, Affiliated Hospital of Zunyi Medical University, Zunyi, Guizhou, People’s Republic of China
| | - Xiang-Chong Wu
- Department of Orthopaedic Surgery, Affiliated Hospital of Zunyi Medical University, Zunyi, Guizhou, People’s Republic of China
| | - De-Zhi Zhao
- Key Laboratory of Cell Engineering of Guizhou Province, Affiliated Hospital of Zunyi Medical University, Zunyi, Guizhou, People’s Republic of China
| | - Sheng-Ping Fu
- Department of Orthopaedic Surgery, Affiliated Hospital of Zunyi Medical University, Zunyi, Guizhou, People’s Republic of China
| | - Feng-Qin Lin
- Key Laboratory of Cell Engineering of Guizhou Province, Affiliated Hospital of Zunyi Medical University, Zunyi, Guizhou, People’s Republic of China
| | - Lin-Yan Li
- Key Laboratory of Cell Engineering of Guizhou Province, Affiliated Hospital of Zunyi Medical University, Zunyi, Guizhou, People’s Republic of China
| | - Li-Mei Yu
- Key Laboratory of Cell Engineering of Guizhou Province, Affiliated Hospital of Zunyi Medical University, Zunyi, Guizhou, People’s Republic of China
| | - Qian Zhang
- Department of Human Anatomy, Zunyi Medical University, Zunyi, Guizhou, People’s Republic of China
| | - Tao Zhang
- Key Laboratory of Cell Engineering of Guizhou Province, Affiliated Hospital of Zunyi Medical University, Zunyi, Guizhou, People’s Republic of China
- Department of Orthopaedic Surgery, Affiliated Hospital of Zunyi Medical University, Zunyi, Guizhou, People’s Republic of China
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Xie Y, Zhang L, Guo S, Peng R, Gong H, Yang M. Changes in respiratory structure and function after traumatic cervical spinal cord injury: observations from spinal cord and brain. Front Neurol 2023; 14:1251833. [PMID: 37869136 PMCID: PMC10587692 DOI: 10.3389/fneur.2023.1251833] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2023] [Accepted: 09/18/2023] [Indexed: 10/24/2023] Open
Abstract
Respiratory difficulties and mortality following severe cervical spinal cord injury (CSCI) result primarily from malfunctions of respiratory pathways and the paralyzed diaphragm. Nonetheless, individuals with CSCI can experience partial recovery of respiratory function through respiratory neuroplasticity. For decades, researchers have revealed the potential mechanism of respiratory nerve plasticity after CSCI, and have made progress in tissue healing and functional recovery. While most existing studies on respiratory plasticity after spinal cord injuries have focused on the cervical spinal cord, there is a paucity of research on respiratory-related brain structures following such injuries. Given the interconnectedness of the spinal cord and the brain, traumatic changes to the former can also impact the latter. Consequently, are there other potential therapeutic targets to consider? This review introduces the anatomy and physiology of typical respiratory centers, explores alterations in respiratory function following spinal cord injuries, and delves into the structural foundations of modified respiratory function in patients with CSCI. Additionally, we propose that magnetic resonance neuroimaging holds promise in the study of respiratory function post-CSCI. By studying respiratory plasticity in the brain and spinal cord after CSCI, we hope to guide future clinical work.
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Affiliation(s)
- Yongqi Xie
- School of Rehabilitation Medicine, Capital Medical University, Beijing, China
| | - Liang Zhang
- School of Rehabilitation Medicine, Capital Medical University, Beijing, China
| | - Shuang Guo
- School of Rehabilitation Medicine, Capital Medical University, Beijing, China
- Department of Rehabilitation, Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences, Guangzhou, China
| | - Run Peng
- School of Rehabilitation Medicine, Capital Medical University, Beijing, China
| | - Huiming Gong
- School of Rehabilitation Medicine, Capital Medical University, Beijing, China
- Department of Spinal and Neural Functional Reconstruction, China Rehabilitation Research Center, Beijing, China
| | - Mingliang Yang
- School of Rehabilitation Medicine, Capital Medical University, Beijing, China
- Department of Spinal and Neural Functional Reconstruction, China Rehabilitation Research Center, Beijing, China
- Center of Neural Injury and Repair, Beijing Institute for Brain Disorders, Beijing, China
- Beijing Key Laboratory of Neural Injury and Rehabilitation, Beijing, China
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Heuer A, Koepke LG, Viezens L, Schroeder M. [Perioperative management after traumatic paraplegia : Avoiding complications]. UNFALLCHIRURGIE (HEIDELBERG, GERMANY) 2023; 126:749-755. [PMID: 37306757 DOI: 10.1007/s00113-023-01342-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Accepted: 05/15/2023] [Indexed: 06/13/2023]
Abstract
This article describes the current status of modern treatment options for traumatic spinal cord injuries with a particular focus on the perioperative phase. Along with a recognition of age-related specific features that can impact successful treatment of spinal injuries, prompt interdisciplinary treatment while adhering to the "time is spine" principle is of high importance. By considering this approach and using modern diagnostic and surgical techniques, successful surgical treatment can be achieved while taking into account individual characteristics, such as reduced bone quality, accompanying injuries as well as oncological and inflammatory rheumatic comorbidities. The preventive and treatment strategies for frequently occurring complications in the management of traumatic spinal cord injuries are presented. By considering case-specific factors, utilizing modern surgical techniques, avoiding or promptly treating typical complications and initiating interdisciplinary treatment, crucial groundwork for a successful long-term treatment of this highly debilitating and life-altering injury can be established in the perioperative phase.
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Affiliation(s)
- Annika Heuer
- Klinik und Poliklinik für Unfallchirurgie und Orthopädie, Sektion Wirbelsäulenchirurgie, Universitätsklinikum Hamburg-Eppendorf, Martinistr. 52, 20246, Hamburg, Deutschland
| | - Leon-Gordian Koepke
- Klinik und Poliklinik für Unfallchirurgie und Orthopädie, Sektion Wirbelsäulenchirurgie, Universitätsklinikum Hamburg-Eppendorf, Martinistr. 52, 20246, Hamburg, Deutschland
| | - Lennart Viezens
- Klinik und Poliklinik für Unfallchirurgie und Orthopädie, Sektion Wirbelsäulenchirurgie, Universitätsklinikum Hamburg-Eppendorf, Martinistr. 52, 20246, Hamburg, Deutschland.
| | - Malte Schroeder
- Klinik und Poliklinik für Unfallchirurgie und Orthopädie, Sektion Wirbelsäulenchirurgie, Universitätsklinikum Hamburg-Eppendorf, Martinistr. 52, 20246, Hamburg, Deutschland
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Fu J, Wu C, Xu G, Zhang J, Chen J, Chen C, Hong H, Xue P, Jiang J, Huang J, Ji C, Cui Z. Protective effect of TNIP2 on the inflammatory response of microglia after spinal cord injury in rats. Neuropeptides 2023; 101:102351. [PMID: 37329819 DOI: 10.1016/j.npep.2023.102351] [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: 02/03/2023] [Revised: 04/30/2023] [Accepted: 06/08/2023] [Indexed: 06/19/2023]
Abstract
BACKGROUND Spinal cord injury (SCI) is a devastating disease that can lead to tissue loss and neurological dysfunction. TNIP2 is a negative regulator of NF-κB signaling due to its capacity to bind A20 and suppress inflammatory cytokines-induced NF-κB activation. However, the anti-inflammatory role of TNIP2 in SCI remains unclear. Our study's intention was to evaluate the effect of TNIP2 on the inflammatory response of microglia after spinal cord injury in rats. METHODS HE staining and Nissl staining were performed on day 3 following SCI to analyze the histological changes. To further investigate the functional changes of TNIP2 after SCI, we performed immunofluorescence staining experiments. The effect of LPS on TNIP2 expression in BV2 cells was examined by western blot. The levels of TNF-α, IL-1β, and IL-6 in spinal cord tissues of rats with SCI and in BV2 cells with LPS were measured by using qPCR. RESULTS TNIP2 expression was closely associated with the pathophysiology of SCI in rats, and TNIP2 was involved in regulating functional changes in microglia. TNIP2 expression was increased during SCI in rats and that overexpression of TNIP2 inhibited M1 polarization and pro-inflammatory cytokine production in microglia, which might ultimately protect against inflammatory responses through the MAPK and NF-κB signaling pathways. CONCLUSIONS The present study provides evidence for a role of TNIP2 in the regulation of inflammation in SCI and suggests that induction of TNIP2 expression alleviated the inflammatory response of microglia.
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Affiliation(s)
- Jiawei Fu
- The Affiliated Hospital 2 of Nantong University, Nantong University, The First People's Hospital of Nantong, Nantong 226001, Jiangsu, People's Republic of China; Key Laboratory for Restoration Mechanism and Clinical Translation of Spinal Cord Injury, Nantong 226001, Jiangsu, People's Republic of China; Research institute for Spine and spinal cord disease of Nantong University, 226001, Jiangsu, People's Republic of China
| | - Chunshuai Wu
- The Affiliated Hospital 2 of Nantong University, Nantong University, The First People's Hospital of Nantong, Nantong 226001, Jiangsu, People's Republic of China; Key Laboratory for Restoration Mechanism and Clinical Translation of Spinal Cord Injury, Nantong 226001, Jiangsu, People's Republic of China; Research institute for Spine and spinal cord disease of Nantong University, 226001, Jiangsu, People's Republic of China
| | - Guanhua Xu
- The Affiliated Hospital 2 of Nantong University, Nantong University, The First People's Hospital of Nantong, Nantong 226001, Jiangsu, People's Republic of China; Key Laboratory for Restoration Mechanism and Clinical Translation of Spinal Cord Injury, Nantong 226001, Jiangsu, People's Republic of China; Research institute for Spine and spinal cord disease of Nantong University, 226001, Jiangsu, People's Republic of China
| | - Jinlong Zhang
- The Affiliated Hospital 2 of Nantong University, Nantong University, The First People's Hospital of Nantong, Nantong 226001, Jiangsu, People's Republic of China
| | - Jiajia Chen
- The Affiliated Hospital 2 of Nantong University, Nantong University, The First People's Hospital of Nantong, Nantong 226001, Jiangsu, People's Republic of China
| | - Chu Chen
- The Affiliated Hospital 2 of Nantong University, Nantong University, The First People's Hospital of Nantong, Nantong 226001, Jiangsu, People's Republic of China
| | - Hongxiang Hong
- The Affiliated Hospital 2 of Nantong University, Nantong University, The First People's Hospital of Nantong, Nantong 226001, Jiangsu, People's Republic of China
| | - Pengfei Xue
- The Affiliated Hospital 2 of Nantong University, Nantong University, The First People's Hospital of Nantong, Nantong 226001, Jiangsu, People's Republic of China
| | - Jiawei Jiang
- The Affiliated Hospital 2 of Nantong University, Nantong University, The First People's Hospital of Nantong, Nantong 226001, Jiangsu, People's Republic of China
| | - Jiayi Huang
- The Affiliated Hospital 2 of Nantong University, Nantong University, The First People's Hospital of Nantong, Nantong 226001, Jiangsu, People's Republic of China
| | - Chunyan Ji
- The Affiliated Hospital 2 of Nantong University, Nantong University, The First People's Hospital of Nantong, Nantong 226001, Jiangsu, People's Republic of China; Key Laboratory for Restoration Mechanism and Clinical Translation of Spinal Cord Injury, Nantong 226001, Jiangsu, People's Republic of China; Research institute for Spine and spinal cord disease of Nantong University, 226001, Jiangsu, People's Republic of China
| | - Zhiming Cui
- The Affiliated Hospital 2 of Nantong University, Nantong University, The First People's Hospital of Nantong, Nantong 226001, Jiangsu, People's Republic of China; Key Laboratory for Restoration Mechanism and Clinical Translation of Spinal Cord Injury, Nantong 226001, Jiangsu, People's Republic of China; Research institute for Spine and spinal cord disease of Nantong University, 226001, Jiangsu, People's Republic of China.
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Ardizzone A, Bova V, Casili G, Filippone A, Lanza M, Repici A, Esposito E, Paterniti I. bFGF-like Activity Supported Tissue Regeneration, Modulated Neuroinflammation, and Rebalanced Ca 2+ Homeostasis following Spinal Cord Injury. Int J Mol Sci 2023; 24:14654. [PMID: 37834102 PMCID: PMC10572408 DOI: 10.3390/ijms241914654] [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: 08/17/2023] [Revised: 09/23/2023] [Accepted: 09/26/2023] [Indexed: 10/15/2023] Open
Abstract
A spinal cord injury (SCI) is a well-defined debilitating traumatic event to the spinal cord that usually triggers permanent changes in motor, sensory, and autonomic functions. Injured tissue becomes susceptible to secondary mechanisms caused by SCIs, which include pro-inflammatory cytokine release, the activation of astrocytes and microglia, and increased neuronal sensibility. As a consequence, the production of factors such as GFAP, IBA-1, TNF-α, IL-1β, IFN-γ, and S100-β slow down or inhibit central nervous system (CNS) regeneration. In this regard, a thorough understanding of the mechanisms regulating the CNS, and specifically SCI, is essential for the development of new therapeutic strategies. It has been demonstrated that basic fibroblast growth factor (bFGF) was successful in the modulation of neurotrophic activity, also promoting neurite survival and tissue repair, thus resulting in the valuable care of CNS disorders. However, bFGF therapeutic use is limited due to the undesirable effects developed following its administration. Therefore, the synthetic compound mimetic of bFGF, SUN11602 (with chemical name 4-[[4-[[2-[(4-Amino-2,3,5,6-tetramethylphenyl)amino]acetyl]methylamino]-1-piperidinyl]methyl]benzamide), has been reported to show neuroprotective activities similar to those of bFGF, also demonstrating a good pharmacokinetic profile. Here, we aimed to investigate the neuroprotective activity of this bFGF-like compound in modulating tissue regeneration, neuroinflammation, and Ca2+ overload by using a subacute mouse model of SCI. SUN11602 (1, 2.5, and 5 mg/kg) was administered orally to mice for 72 h daily following the in vivo model of SCI, which was generated by the extradural compression of the spinal cord. The data obtained demonstrated that SUN11602 treatment considerably decreased motor alteration and diminished the neuroinflammatory state through the regulation of glial activation, the NF-κB pathway, and kinases. Additionally, by controlling Ca2+-binding proteins and restoring neurotrophin expression, we showed that SUN11602 therapy restored the equilibrium of the neuronal circuit. Because of these findings, bFGF-like compounds may be an effective tool for reducing inflammation in SCI patients while enhancing their quality of life.
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Affiliation(s)
| | | | | | | | | | | | - Emanuela Esposito
- Department of Chemical, Biological, Pharmaceutical and Environmental Sciences, University of Messina, Viale Ferdinando Stagno D’Alcontres, 31, 98166 Messina, Italy; (A.A.); (V.B.); (G.C.); (A.F.); (M.L.); (A.R.); (I.P.)
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Xue H, Ran B, Li J, Wang G, Chen B, Mao H. Bone marrow mesenchymal stem cell exosomes-derived microRNA-216a-5p on locomotor performance, neuronal injury, and microglia inflammation in spinal cord injury. Front Cell Dev Biol 2023; 11:1227440. [PMID: 37766965 PMCID: PMC10520706 DOI: 10.3389/fcell.2023.1227440] [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: 05/23/2023] [Accepted: 08/21/2023] [Indexed: 09/29/2023] Open
Abstract
Background: MicroRNA-216a-5p (miR-216a-5p) mediates inflammatory responses and neuronal injury to participate in the pathology of spinal cord injury (SCI). This study intended to explore the engagement of bone marrow mesenchymal stem cell exosomes (BMSC-Exo)-derived miR-216a-5p in locomotor performance, neuronal injury, and microglia-mediated inflammation in SCI rats. Methods: Rat BMSC or BMSC-Exo was injected into SCI rats. GW4869 treatment was adopted to suppress the exosome secretion from BMSC. Subsequently, miR-216a-5p-overexpressed BMSC-Exo (BMSC-miR-Exo) or negative-control-overexpressed BMSC-Exo (BMSC-NC-Exo) were injected into SCI rats. Results: The injection of BMSC or BMSC-Exo enhanced locomotor performance reflected by Basso, Beattie & Bresnahan score (p < 0.001), and neuronal viability reflected by NeuN+ cells (p < 0.01), but attenuated neuronal apoptosis reflected by TUNEL positive rate, cleaved-caspase-3 expression, and B-cell leukemia/lymphoma-2 expression (p < 0.05). Additionally, the injection of BMSC or BMSC-Exo suppressed microglia M1 polarization-mediated inflammation reflected by IBA1+iNOS+ cells, tumor necrosis factor-α, interleukin (IL)-1β, and IL-6 (p < 0.01). Notably, the effect of BMSC on the above functions was retarded by the GW4869 treatment (most p < 0.05). Subsequently, the injection of BMSC-miR-Exo further improved locomotor performance (p < 0.05), while inhibiting neuronal apoptosis (p < 0.05) and microglia M1 polarization-mediated inflammation (p < 0.05) compared to BMSC-NC-Exo. Interestingly, the injection of BMSC-miR-Exo reduced toll-like receptor 4 (TLR4) (p < 0.01), myeloid differentiation factor 88 (p < 0.05), and nuclear factor kappa B (NF-κB) (p < 0.05) expressions versus BMSC-NC-Exo. Conclusion: BMSC-Exo-derived miR-216a-5p enhances functional recovery by attenuating neuronal injury and microglia-mediated inflammation in SCI, which may be attributable to its inhibition of the TLR4/NF-κB pathway.
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Affiliation(s)
- Hao Xue
- Department of Orthopaedic Medicine, Inner Mongolia Baogang Hospital, Baotou, Mongolia, China
| | - Bo Ran
- Department of Orthopaedic Medicine, Inner Mongolia Baogang Hospital, Baotou, Mongolia, China
| | - Jie Li
- Department of Orthopaedic Medicine, Inner Mongolia Baogang Hospital, Baotou, Mongolia, China
| | - Guorui Wang
- Orthopaedic Research, Inner Mongolia Medical University, Hohhot, Mongolia, China
| | - Baolin Chen
- Trauma Orthopedics, Baotou Medical College, Baotou, Mongolia, China
| | - Honggang Mao
- Department of Orthopaedic Medicine, Inner Mongolia Baogang Hospital, Baotou, Mongolia, China
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Hwang J, Jang S, Kim C, Lee S, Jeong HS. Role of Stem Cell-Derived Exosomes and microRNAs in Spinal Cord Injury. Int J Mol Sci 2023; 24:13849. [PMID: 37762150 PMCID: PMC10530823 DOI: 10.3390/ijms241813849] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2023] [Revised: 08/30/2023] [Accepted: 09/06/2023] [Indexed: 09/29/2023] Open
Abstract
Neurological disorders represent a global health problem. Current pharmacological treatments often lead to short-term symptomatic relief but have dose-dependent side effects, such as inducing orthostatic arterial hypotension due to the blockade of alpha receptors, cardiotoxic effects due to impaired repolarization, and atrioventricular block and tachycardia, including ventricular fibrillation. These challenges have driven the medical community to seek effective treatments for this serious global health threat. Mesenchymal stem cells (MSCs) are pluripotent cells with anti-inflammatory, anti-apoptotic, and immunomodulatory properties, providing a promising alternative due to their ability to differentiate, favorable culture conditions, in vitro manipulation ability, and robust properties. Although MSCs themselves rarely differentiate into neurons at the site of injury after transplantation in vivo, paracrine factors secreted by MSCs can create environmental conditions for cell-to-cell communication and have shown therapeutic effects. Recent studies have shown that the pleiotropic effects of MSCs, particularly their immunomodulatory potential, can be attributed primarily to these paracrine factors. Exosomes derived from MSCs are known to play an important role in these effects. Many studies have evaluated the potential of exosome-based therapies for the treatment of various neurological diseases. In addition to exosomes, various miRNAs derived from MSCs have been identified to regulate genes and alleviate neuropathological changes in neurodegenerative diseases. This review explores the burgeoning field of exosome-based therapies, focusing on the effects of MSC-derived exosomes and exosomal miRNAs, and summarizes recent findings that shed light on the potential of exosomes in the treatment of neurological disorders. The insights gained from this review may pave the way for innovative and effective treatments for these complex conditions. Furthermore, we suggest the therapeutic effects of exosomes and exosomal miRNAs from MSCs, which have a rescue potential in spinal cord injury via diverse signaling pathways.
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Affiliation(s)
- Jinsu Hwang
- Department of Physiology, Chonnam National University Medical School, Hwasun 58128, Republic of Korea; (J.H.); (S.J.)
| | - Sujeong Jang
- Department of Physiology, Chonnam National University Medical School, Hwasun 58128, Republic of Korea; (J.H.); (S.J.)
| | - Choonghyo Kim
- Department of Neurosurgery, Kangwon National University School of Medicine, Chuncheon 24341, Republic of Korea;
| | - Sungjoon Lee
- Department of Neurosurgery, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul 06351, Republic of Korea;
| | - Han-Seong Jeong
- Department of Physiology, Chonnam National University Medical School, Hwasun 58128, Republic of Korea; (J.H.); (S.J.)
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Alshahrani SH, Almajidi YQ, Hasan EK, Musad Saleh EA, Alsaab HO, Pant R, Hassan ZF, Al-Hasnawi SS, Romero-Parra RM, Mustafa YF. Hyperbaric Oxygen in Combination with Epigallocatechin-3-Gallate Synergistically Enhance Recovery from Spinal Cord Injury in Rats. Neuroscience 2023; 527:52-63. [PMID: 37499782 DOI: 10.1016/j.neuroscience.2023.07.015] [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: 04/26/2023] [Revised: 07/08/2023] [Accepted: 07/11/2023] [Indexed: 07/29/2023]
Abstract
Spinal cord injury (SCI) following trauma is a devastating neurological event that can lead to loss of sensory and motor functions. However, the most effective measures to prevent the spread of damage are treatment measures in the early stages. Currently, we investigated the combined effects of hyperbaric oxygen (HBO) along with epigallocatechin-3-gallate (EGCG) in the recovery of SCI in rats. Ninety male mature Sprague-Dawley rats were randomly planned into five equal groups (n = 18). In addition to sham group that only underwent laminectomy, SCI rats were allocated into 4 groups as follows: control group; HBO group; EGCG group; and HBO + EGCG group. Tissue samples at the lesion site were obtained for stereological, immunohistochemical, biochemical, and molecular evaluation. In addition, behavioral tests were performed to assess of neurological functions. The finding indicated that the stereological parameters, antioxidant factors (CAT, GSH, and SOD), IL-10 gene expression levels and neurological functions were considerably increased in the treatment groups in comparison with control group, and these changes were more obvious in the HBO + EGCG group (P < 0.05). On the other hand, we observed that the density of apoptotic cells and gliosis, the biochemical levels of MDA and the expression levels of inflammatory genes (TNF-α and IL-1β) in the treatment groups, especially the HBO + EGCG group, were considerably reduced in comparison with control group (P < 0.05). We conclude that co-administration of HBO and EGCG has a synergistic neuroprotective effects in animals undergoing SCI.
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Affiliation(s)
| | - Yasir Qasim Almajidi
- Baghdad College of Medical Sciences-department of Pharmacy (Pharmaceutics), Baghdad, Iraq.
| | | | - Ebraheem Abdu Musad Saleh
- Department of Chemistry, Prince Sattam Bin Abdulaziz University, College of Arts and Science, Wadi Al-Dawasir 11991, Saudi Arabia
| | - Hashem O Alsaab
- Department of Pharmaceutics and Pharmaceutical Technology, Taif University, Taif 21944, Saudi Arabia
| | - Ruby Pant
- Mechanical in Department, Uttaranchal Institute of Technology, Uttaranchal University, Dehradun 248007, India
| | | | | | | | - Yasser Fakri Mustafa
- Department of Pharmaceutical Chemistry, College of Pharmacy, University of Mosul, Mosul 41001, Iraq
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Coombs A, Ashton-Cleary D. Hanging and near-hanging. BJA Educ 2023; 23:358-363. [PMID: 37600213 PMCID: PMC10433290 DOI: 10.1016/j.bjae.2023.05.002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 05/16/2023] [Indexed: 08/22/2023] Open
Affiliation(s)
- A.E. Coombs
- University Hospitals Plymouth NHS Trust, Plymouth, UK
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Xie L, Wu H, Huang X, Yu T. Melatonin, a natural antioxidant therapy in spinal cord injury. Front Cell Dev Biol 2023; 11:1218553. [PMID: 37691830 PMCID: PMC10485268 DOI: 10.3389/fcell.2023.1218553] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2023] [Accepted: 08/11/2023] [Indexed: 09/12/2023] Open
Abstract
Spinal cord injury (SCI) is a sudden onset of disruption to the spinal neural tissue, leading to loss of motor control and sensory function of the body. Oxidative stress is considered a hallmark in SCI followed by a series of events, including inflammation and cellular apoptosis. Melatonin was originally discovered as a hormone produced by the pineal gland. The subcellular localization of melatonin has been identified in mitochondria, exhibiting specific onsite protection to excess mitochondrial reactive oxygen species and working as an antioxidant in diseases. The recent discovery regarding the molecular basis of ligand selectivity for melatonin receptors and the constant efforts on finding synthetic melatonin alternatives have drawn researchers' attention back to melatonin. This review outlines the application of melatonin in SCI, including 1) the relationship between the melatonin rhythm and SCI in clinic; 2) the neuroprotective role of melatonin in experimental traumatic and ischemia/reperfusion SCI, i.e., exhibiting anti-oxidative, anti-inflammatory, and anti-apoptosis effects, facilitating the integrity of the blood-spinal cord barrier, ameliorating edema, preventing neural death, reducing scar formation, and promoting axon regeneration and neuroplasticity; 3) protecting gut microbiota and peripheral organs; 4) synergizing with drugs, rehabilitation training, stem cell therapy, and biomedical material engineering; and 5) the potential side effects. This comprehensive review provides new insights on melatonin as a natural antioxidant therapy in facilitating rehabilitation in SCI.
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Affiliation(s)
- Lei Xie
- Institute of Sports Medicine and Health, Qingdao University, Qingdao, China
- Department of Orthopedic Surgery, Qingdao Hospital, University of Health and Rehabilitation Sciences (Qingdao Municipal Hospital), Qingdao, China
| | - Hang Wu
- Department of Orthopedic Surgery, Qingdao Hospital, University of Health and Rehabilitation Sciences (Qingdao Municipal Hospital), Qingdao, China
- Department of Orthopedic Surgery, The Affiliated Hospital of Qingdao University, Qingdao University, Qingdao, China
| | - Xiaohong Huang
- Department of Orthopedic Surgery, Qingdao Hospital, University of Health and Rehabilitation Sciences (Qingdao Municipal Hospital), Qingdao, China
- Shandong Institute of Traumatic Orthopedics, Medical Research Center, The Affiliated Hospital of Qingdao University, Qingdao, China
| | - Tengbo Yu
- Institute of Sports Medicine and Health, Qingdao University, Qingdao, China
- Department of Orthopedic Surgery, Qingdao Hospital, University of Health and Rehabilitation Sciences (Qingdao Municipal Hospital), Qingdao, China
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Chen S, Ye J, Wu G, Shi J, Li X, Chen X, Wu W. Histone Deacetylase 3 Inhibition Ameliorates Microglia-Mediated Neuro-Inflammation Via the SIRT1/Nrf2 Pathway After Traumatic Spinal Cord Injury. Neurorehabil Neural Repair 2023; 37:503-518. [PMID: 37503724 DOI: 10.1177/15459683231183716] [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: 07/29/2023]
Abstract
BACKGROUND Microglial-induced inflammation plays a crucial role in the pathophysiological process of nervous system injury, however, still lacks effective therapeutic agents. Previously, we discovered that the inhibition of histone deacetylase 3 (HDAC3) exerts anti-inflammatory effects after traumatic spinal cord injury (SCI), whereas little is known about its underlying mechanism. Therefore, the present study aimed to explore the effects and potential mechanisms of HDAC3 on neuroinflammation and microglial function. METHODS Rats were randomized into 4 groups: sham group, SCI group, SCI + vehicle group, and SCI + RGF966 group. To examine the effect of HDAC3 on neurological deficit after SCI, we gathered data using the Basso Beattie Bresnahan locomotion scale, the inclined plane test, the blood-spinal cord barrier, junction protein expression, and Nissl staining. We also evaluated microglial activation and inflammatory factor levels. Immunofluorescence analysis, immunohistochemical analysis, western blotting, and quantitative real-time polymerase chain reaction were performed to examine the regulation of the Sirtuin 1 (SIRT1)/nuclear factor-erythroid 2-related factor 2 (Nrf2) pathway. RESULTS The results showed that HDAC3 inhibition significantly ameliorated Basso-Beattie-Bresnahan (BBB) permeability, brain edema, and improved neurological functions and junction protein levels. Additionally, HDAC3 inhibition significantly inhibited microglial activation, thereby reducing the levels of SCI-induced pro-inflammatory factors. Moreover, HDAC3 inhibition dramatically enhanced the expression of SIRT1 and increased both Nrf2 nuclear accumulation and transcriptional activity, thereby increasing downstream heme oxygenase-1 and NAD(P)H quinone oxidoreductase 1 expression. CONCLUSIONS The results of this study suggest that HDAC3 inhibition protects the spinal cord from injury following SCI by inhibiting SCI-induced microglial activation and the subsequent inflammatory response via SIRT1/Nrf2 signaling pathway, highlighting HDAC3 as a potential therapeutic target for the treatment of SCI.
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Affiliation(s)
- Shoubo Chen
- Department of Orthopaedics, The Second Affiliated Hospital, Fujian Medical University, Quanzhou, Fujian Province, China
| | - Jingfang Ye
- Department of Nursing Faculty, Quanzhou Medical College, Quanzhou, Fujian Province, China
| | - Guozhong Wu
- Department of Orthopaedics, The Second Affiliated Hospital, Fujian Medical University, Quanzhou, Fujian Province, China
| | - Jinnan Shi
- Department of Orthopaedics, The Second Affiliated Hospital, Fujian Medical University, Quanzhou, Fujian Province, China
| | - Xiang Li
- Department of Neurosurgery, Nanjing First Hospital, Nanjing Medical University, Nanjing, Jiangsu Province, China
| | - Xiangrong Chen
- Department of Neurosurgery, The Second Affiliated Hospital, Fujian Medical University, Quanzhou, Fujian Province, China
| | - Wenhua Wu
- Department of Orthopaedics, The Second Affiliated Hospital, Fujian Medical University, Quanzhou, Fujian Province, China
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Cui Y, Yang B, Lin S, Huang L, Xie F, Feng W, Lin Z. FGF23 alleviates neuronal apoptosis and inflammation, and promotes locomotion recovery via activation of PI3K/AKT signalling in spinal cord injury. Exp Ther Med 2023; 26:340. [PMID: 37383378 PMCID: PMC10294607 DOI: 10.3892/etm.2023.12039] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2022] [Accepted: 03/24/2023] [Indexed: 06/30/2023] Open
Abstract
Fibroblast growth factor 23 (FGF23) regulates neuronal morphology, synaptic growth and inflammation; however, its involvement in spinal cord injury (SCI) remains unclear. Therefore, the present study aimed to investigate the effect of FGF23 on neuronal apoptosis, inflammation and locomotion recovery, as well as its underlying mechanism in experimental SCI models. Primary rat neurons were stimulated with H2O2 to establish an in vitro model of SCI and were then transfected with an FGF23 overexpression (oeFGF23) or short hairpin RNA (shFGF23) adenovirus-associated virus and treated with or without LY294002 (a PI3K/AKT inhibitor). Subsequently, an SCI rat model was constructed, followed by treatment with oeFGF23, LY294002 or a combination of the two. FGF23 overexpression (oeFGF23 vs. oeNC) decreased the cell apoptotic rate and cleaved-caspase3 expression, but increased Bcl-2 expression in H2O2-stimulated neurons, whereas shFGF23 transfection (shFGF23 vs. shNC) exhibited the opposite effect (all P<0.05). Furthermore, FGF23 overexpression (oeFGF23 vs. oeNC) could activate the PI3K/AKT signalling pathway, whereas treatment with the PI3K/AKT inhibitor (LY294002) (oeFGF23 + LY294002 vs. LY294002) attenuated these effects in H2O2-stimulated neurons (all P<0.05). In SCI model rats, FGF23 overexpression (oeFGF23 vs. oeNC) reduced the laceration and inflammatory cell infiltration in injured tissue, decreased TNF-α and IL-1β levels, and improved locomotion recovery (all P<0.05); these effects were attenuated by additional administration of LY294002 (oeFGF23 + LY294002 vs. LY294002) (all P<0.05). In conclusion, FGF23 alleviated neuronal apoptosis and inflammation, and promoted locomotion recovery via activation of the PI3K/AKT signalling pathway in SCI, indicating its potential as a treatment option for SCI; however, further studies are warranted for validation.
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Affiliation(s)
- Yan Cui
- Department of Orthopaedic Trauma, Zhongshan Hospital Affiliated to Xiamen University, Xiamen, Fujian 361004, P.R. China
| | - Bin Yang
- Department of Orthopaedic Trauma, Zhongshan Hospital Affiliated to Xiamen University, Xiamen, Fujian 361004, P.R. China
| | - Shaoyi Lin
- Department of Orthopaedic Trauma, Zhongshan Hospital Affiliated to Xiamen University, Xiamen, Fujian 361004, P.R. China
| | - Luqiang Huang
- Department of Orthopaedic Trauma, Zhongshan Hospital Affiliated to Xiamen University, Xiamen, Fujian 361004, P.R. China
| | - Feibin Xie
- Department of Orthopaedic Trauma, Zhongshan Hospital Affiliated to Xiamen University, Xiamen, Fujian 361004, P.R. China
| | - Wei Feng
- Department of Neurosurgery, Zhongshan Hospital Affiliated to Xiamen University, Xiamen, Fujian 361004, P.R. China
| | - Zhenzong Lin
- Department of Orthopaedic Trauma, Zhongshan Hospital Affiliated to Xiamen University, Xiamen, Fujian 361004, P.R. China
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Yang D, Wang H, Xue Y, Bai S, Zhou Y, Duan Y, Zhao Y, Sha K, Yu C, Wang H, Peng Y, Wang Y, Qie S. Effects of Rehabilitation Therapy at Different Intervention Times on Daily Living Activity and Motor Function in Patients with Traumatic Spinal Cord Injury. Am J Health Behav 2023; 47:471-478. [PMID: 37596748 DOI: 10.5993/ajhb.47.3.4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/20/2023]
Abstract
Objectives: We investigated the impact of traumatic spinal cord injury (TSCI) on daily living activities and motor function of TSCI patients. Methods: A total of 88 TSCI patients were randomly divided into Group A (N=44) and Group B (N=44). Group A received rehabilitation treatment 7 days after the stabilization of vital signs, and Group B received rehabilitation treatment 30 days after hospitalization. Results: The compliance rate of Group A (93.18%) was higher than that of Group B (72.73%) (χ 2 =6.510, p<.05); The scores of American Spinal Injury Association (ASIA) and Activities of Daily Living (ADL) in Group A were higher than those in Group B. The self-rating score of anxiety and depression was lower than that of Group B (p<.05). Conclusion: For the rehabilitation treatment of TSCI patients, it is better to choose the intervention after the vital signs are stable to improve patients' ability for daily living activities and motor function.
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Affiliation(s)
- Deng Yang
- Department of Urology and Metabolic Rehabilitation Center, Beijing Rehabilitation Hospital Affiliated to Capital Medical University, Beijing, China
| | - Hanming Wang
- Department of Rehabilitation Diagnosis and Treatment Center, Beijing Rehabilitation Hospital Affiliated to Capital Medical University, Beijing, China
| | - Yafeng Xue
- Department of Rehabilitation Treatment Center, Beijing Rehabilitation Hospital Affiliated to Capital Medical University, Beijing, China
| | - Sen Bai
- Department of Rehabilitation Treatment Center, Beijing Rehabilitation Hospital Affiliated to Capital Medical University, Beijing, China
| | - Yuanyuan Zhou
- Department of Rehabilitation Treatment Center, Beijing Rehabilitation Hospital Affiliated to Capital Medical University, Beijing, China
| | - Yunxin Duan
- Department of Rehabilitation Treatment Center, Beijing Rehabilitation Hospital Affiliated to Capital Medical University, Beijing, China
| | - Yue Zhao
- Department of Urology and Metabolic Rehabilitation Center, Beijing Rehabilitation Hospital Affiliated to Capital Medical University, Beijing, China
| | - Kefu Sha
- Department of Urology and Metabolic Rehabilitation Center, Beijing Rehabilitation Hospital Affiliated to Capital Medical University, Beijing, China
| | - Chunhu Yu
- Department of Urology and Metabolic Rehabilitation Center, Beijing Rehabilitation Hospital Affiliated to Capital Medical University, Beijing, China
| | - Huan Wang
- Department of Rehabilitation Treatment Center, Beijing Rehabilitation Hospital Affiliated to Capital Medical University, Beijing, China
| | - Yanping Peng
- Department of Urology and Metabolic Rehabilitation Center, Beijing Rehabilitation Hospital Affiliated to Capital Medical University, Beijing, China
| | - Ying Wang
- Department of Urology and Metabolic Rehabilitation Center, Beijing Rehabilitation Hospital Affiliated to Capital Medical University, Beijing, China
| | - Shuyan Qie
- Department of Rehabilitation Diagnosis and Treatment Center, Beijing Rehabilitation Hospital Affiliated to Capital Medical University, Beijing, China
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Yuan F, Peng W, Yang Y, Xu J, Liu Y, Xie Y, Huang T, Shi C, Ding Y, Li C, Qin T, Xie S, Zhu F, Lu H, Huang J, Hu J. Endothelial progenitor cell-derived exosomes promote anti-inflammatory macrophages via SOCS3/JAK2/STAT3 axis and improve the outcome of spinal cord injury. J Neuroinflammation 2023; 20:156. [PMID: 37391774 DOI: 10.1186/s12974-023-02833-7] [Citation(s) in RCA: 8] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2022] [Accepted: 06/12/2023] [Indexed: 07/02/2023] Open
Abstract
BACKGROUND Macrophage in the spinal cord injury (SCI) area imparts a chronic pro-inflammation effect that challenges the recovery of SCI. Previously, endothelial progenitor cell-produced exosomes (EPC-EXOs) have been noticed to facilitate revascularization and inflammation control after SCI. However, their effects on macrophage polarization remained unclear. This study aimed to investigate the EPC-EXOs' role in macrophage polarization and reveal its underlying mechanism. METHODS We extracted the macrophages and EPC from the bone marrow suspension of C57BL/L mice by centrifugation. After cell identification, the EPC-EXOs were collected by ultra-high-speed centrifugation and exosome extraction kits and identified by transmission electron microscopy and nanoparticle tracking analysis. Then, macrophages were cultured with EPC-EXOs in different concentrations. We labeled the exosome to confirm its internalization by macrophage and detected the macrophage polarization marker level both in vitro and in vivo. We further estimated EPC-EXOs' protective effects on SCI by mice spinal cord tissue H&E staining and motor behavior evaluation. Finally, we performed RT-qPCR to identify the upregulated miRNA in EPC-EXOs and manipulate its expression to estimate its role in macrophage polarization, SOCS3/JAK2/STAT3 pathway activation, and motor behavior improvement. RESULTS We found that EPC-EXOs decreased the macrophages' pro-inflammatory marker expression and increased their anti-inflammatory marker expression on the 7 and 14 days after SCI. The spinal cord H&E staining results showed that EPC-EXOs raised the tissue-sparing area rate significantly after 28 days of SCI and the motor behavior evaluation indicated an increased BMS score and motor-evoked potential by EPC-EXOs treatment after SCI. The RT-qPCR assay identified that miR-222-3P upregulated in EPC-EXOs and its miRNA-mimic also decreased the pro-inflammatory macrophages and increased the anti-inflammatory macrophages. Additionally, miR-222-3P mimic activated the SOCS3/JAK2/STAT3 pathway, and SOCS3/JAK2/STAT3 pathway inhibition blocked miR-2223P's effects on macrophage polarization and mouse motor behavior. CONCLUSION Comprehensively, we discovered that EPC-EXOs-derived miR-222-3p affected macrophage polarization via SOCS3/JAK2/STAT3 pathway and promoted mouse functional repair after SCI, which reveals EPC-EXOs' role in modulation of macrophage phenotype and will provide a novel interventional strategy to induce post-SCI recovery.
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Affiliation(s)
- Feifei Yuan
- Department of Spine Surgery and Orthopaedics, Xiangya Hospital, Central South University, Changsha, 410008, China
- Key Laboratory of Organ Injury, Aging and Regenerative Medicine of Hunan Province, 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, Changsha, 410008, China
| | - Wei Peng
- Department of Spine Surgery and Orthopaedics, Xiangya Hospital, Central South University, Changsha, 410008, China
- Key Laboratory of Organ Injury, Aging and Regenerative Medicine of Hunan Province, 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, Changsha, 410008, China
- Department of Spine Surgery, Wuxi Ninth People's Hospital, Wuxi, Jiangsu, China
| | - Yuying Yang
- Department of Sports Medicine, Xiangya Hospital, Central South University, Changsha, 410008, China
- Key Laboratory of Organ Injury, Aging and Regenerative Medicine of Hunan Province, 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, Changsha, 410008, China
| | - Jiaqi Xu
- Department of Spine Surgery and Orthopaedics, Xiangya Hospital, Central South University, Changsha, 410008, China
- Key Laboratory of Organ Injury, Aging and Regenerative Medicine of Hunan Province, 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, Changsha, 410008, China
| | - Yudong Liu
- Department of Spine Surgery and Orthopaedics, Xiangya Hospital, Central South University, Changsha, 410008, China
- Key Laboratory of Organ Injury, Aging and Regenerative Medicine of Hunan Province, 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, Changsha, 410008, China
| | - Yong Xie
- Department of Spine Surgery and Orthopaedics, Xiangya Hospital, Central South University, Changsha, 410008, China
- Key Laboratory of Organ Injury, Aging and Regenerative Medicine of Hunan Province, 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, Changsha, 410008, China
| | - Tingmo Huang
- Department of Sports Medicine, Xiangya Hospital, Central South University, Changsha, 410008, China
- Key Laboratory of Organ Injury, Aging and Regenerative Medicine of Hunan Province, 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, Changsha, 410008, China
| | - Chaoran Shi
- Department of Spine Surgery and Orthopaedics, Xiangya Hospital, Central South University, Changsha, 410008, China
- Key Laboratory of Organ Injury, Aging and Regenerative Medicine of Hunan Province, 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, Changsha, 410008, China
| | - Yinghe Ding
- Department of Spine Surgery and Orthopaedics, Xiangya Hospital, Central South University, Changsha, 410008, China
- Key Laboratory of Organ Injury, Aging and Regenerative Medicine of Hunan Province, 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, Changsha, 410008, China
| | - Chengjun Li
- Department of Spine Surgery and Orthopaedics, Xiangya Hospital, Central South University, Changsha, 410008, China
- Key Laboratory of Organ Injury, Aging and Regenerative Medicine of Hunan Province, 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, Changsha, 410008, China
| | - Tian Qin
- Department of Spine Surgery and Orthopaedics, Xiangya Hospital, Central South University, Changsha, 410008, China
- Key Laboratory of Organ Injury, Aging and Regenerative Medicine of Hunan Province, 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, Changsha, 410008, China
| | - Shanshan Xie
- Department of Sports Medicine, Xiangya Hospital, Central South University, Changsha, 410008, China
- Key Laboratory of Organ Injury, Aging and Regenerative Medicine of Hunan Province, 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, Changsha, 410008, China
| | - Fengzhang Zhu
- Department of Spine Surgery and Orthopaedics, Xiangya Hospital, Central South University, Changsha, 410008, China
- Key Laboratory of Organ Injury, Aging and Regenerative Medicine of Hunan Province, 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, Changsha, 410008, China
| | - Hongbin Lu
- Department of Sports Medicine, Xiangya Hospital, Central South University, Changsha, 410008, China
- Key Laboratory of Organ Injury, Aging and Regenerative Medicine of Hunan Province, 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, Changsha, 410008, China
| | - Jianjun Huang
- Department of Spine Surgery, Ningde City Hospital, Fujian Medical University, Ningde, China.
| | - Jianzhong Hu
- Department of Spine Surgery and Orthopaedics, Xiangya Hospital, Central South University, Changsha, 410008, China.
- Key Laboratory of Organ Injury, Aging and Regenerative Medicine of Hunan Province, 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, Changsha, 410008, China.
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Jeong SY, Lee HL, Wee S, Lee H, Hwang G, Hwang S, Yoon S, Yang YI, Han I, Kim KN. Co-Administration of Resolvin D1 and Peripheral Nerve-Derived Stem Cell Spheroids as a Therapeutic Strategy in a Rat Model of Spinal Cord Injury. Int J Mol Sci 2023; 24:10971. [PMID: 37446149 DOI: 10.3390/ijms241310971] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2023] [Revised: 06/27/2023] [Accepted: 06/28/2023] [Indexed: 07/15/2023] Open
Abstract
Spinal cord injury (SCI), primarily caused by trauma, leads to permanent and lasting loss of motor, sensory, and autonomic functions. Current therapeutic strategies are focused on mitigating secondary injury, a crucial aspect of SCI pathophysiology. Among these strategies, stem cell therapy has shown considerable therapeutic potential. This study builds on our previous work, which demonstrated the functional recovery and neuronal regeneration capabilities of peripheral nerve-derived stem cell (PNSC) spheroids, which are akin to neural crest stem cells, in SCI models. However, the limited anti-inflammatory capacity of PNSC spheroids necessitates a combined therapeutic approach. As a result, we investigated the potential of co-administering resolvin D1 (RvD1), known for its anti-inflammatory and neuroprotective properties, with PNSC spheroids. In vitro analysis confirmed RvD1's anti-inflammatory activity and its inhibitory effect on pro-inflammatory cytokines. In vivo studies involving a rat SCI model demonstrated that combined therapy of RvD1 and PNSC spheroids outperformed monotherapies, exhibiting enhanced neuronal regeneration and anti-inflammatory effects as validated through behavior tests, quantitative reverse transcription polymerase chain reaction, and immunohistochemistry. Thus, our findings suggest that the combined application of RvD1 and PNSC spheroids may represent a novel therapeutic approach for SCI management.
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Affiliation(s)
- Seung-Young Jeong
- Spine & Spinal Cord Institute, Department of Neurosurgery, College of Medicine, Yonsei University, Seoul 03722, Republic of Korea
| | - Hye-Lan Lee
- Spine & Spinal Cord Institute, Department of Neurosurgery, College of Medicine, Yonsei University, Seoul 03722, Republic of Korea
| | - SungWon Wee
- Spine & Spinal Cord Institute, Department of Neurosurgery, College of Medicine, Yonsei University, Seoul 03722, Republic of Korea
| | - HyeYeong Lee
- Spine & Spinal Cord Institute, Department of Neurosurgery, College of Medicine, Yonsei University, Seoul 03722, Republic of Korea
| | - GwangYong Hwang
- Spine & Spinal Cord Institute, Department of Neurosurgery, College of Medicine, Yonsei University, Seoul 03722, Republic of Korea
| | - SaeYeon Hwang
- Spine & Spinal Cord Institute, Department of Neurosurgery, College of Medicine, Yonsei University, Seoul 03722, Republic of Korea
- Graduate Program in Bioindustrial Engineering, Yonsei University, Seoul 03722, Republic of Korea
| | - SolLip Yoon
- Spine & Spinal Cord Institute, Department of Neurosurgery, College of Medicine, Yonsei University, Seoul 03722, Republic of Korea
| | - Young-Il Yang
- Paik Imje Memorial Institute for Clinical Research, InJe University College of Medicine, Busan 47392, Republic of Korea
| | - Inbo Han
- Department of Neurosurgery, CHA University School of Medicine, CHA Bundang Medical Center, Seongnam-si 13496, Republic of Korea
| | - Keung-Nyun Kim
- Spine & Spinal Cord Institute, Department of Neurosurgery, College of Medicine, Yonsei University, Seoul 03722, Republic of Korea
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Tao JW, Fan X, Zhou JY, Huo LY, Mo YJ, Bai HZ, Zhao Y, Ren JP, Mu XH, Xu L. Granulocyte colony-stimulating factor effects on neurological and motor function in animals with spinal cord injury: a systematic review and meta-analysis. Front Neurosci 2023; 17:1168764. [PMID: 37449274 PMCID: PMC10338098 DOI: 10.3389/fnins.2023.1168764] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2023] [Accepted: 06/12/2023] [Indexed: 07/18/2023] Open
Abstract
Background Spinal cord injury (SCI) is a severe neurological injury for which no effective treatment exists. Granulocyte colony-stimulating factor (G-CSF) is used to treat autologous bone marrow transplantation, chemotherapy-induced granulocytopenia, Acquired Immune Deficiency Syndrome (AIDS), etc. Recent research has revealed the potential application of G-CSF on neuroprotective effectiveness. In central nervous system diseases, G-CSF can be used to alleviate neuronal injury. Objective To investigate the effects of G-CSF on Basso, Beattie, and Bresnahan (BBB) scale score, inclined plane test, electrophysiologic exam, quantitative analysis of TUNEL-positive cells, and quantitative analysis of glial fibrillary acidic protein (GFAP) immunostaining images in animal models of SCI. Methods We searched PubMed, Web of Science, and Embase databases for all articles on G-CSF intervention with animal models of SCI reported before November 2022. A total of 20 studies met the inclusion criteria. Results Results revealed that G-CSF intervention could improve the BBB scale score in both groups at 3, 7, 14, 28, and 35 days [at 35 days, weighted mean differences (WMD) = 2.4, 95% CI: 1.92-2.87, p < 0.00001, I2 = 69%]; inclined plane test score; electrophysiologic exam; quantitative analysis of TUNEL-positive cell numbers; quantitative analysis of GFAP immunostaining images in animal models of SCI. Subgroup analysis revealed that treatment with normal saline, phosphate-buffered saline, and no treatment resulted in significantly different neurological function effectiveness compared to the G-CSF therapy. SD rats and Wistar rats with SCI resulted in significant neurological function effectiveness. C57BL/6 mice showed no difference in the final effect. The T9-T10 or T10 segment injury model and the T8-T9 or T9 segment injury model resulted in significant neurological function effectiveness. The BBB score data showed no clear funnel plot asymmetry. We found no bias in the analysis result (Egger's test, p = 0.42). In our network meta-analysis, the SUCRA ranking showed that 15 mg/kg-20 mg/kg was an optimal dose for long-term efficacy. Conclusion Our meta-analysis suggests that G-CSF therapy may enhance the recovery of motor activity and have a specific neuroprotective effect in SCI animal models.Systematic review registration: PROSPERO, identifier: CRD42023388315.
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Affiliation(s)
- Jing-Wei Tao
- Center for Orthopedic Surgery, Beijing University of Chinese Medicine Dongzhimen Hospital, Beijing, China
- Beijing University of Chinese Medicine, Beijing, China
| | - Xiao Fan
- Center for Orthopedic Surgery, Beijing University of Chinese Medicine Dongzhimen Hospital, Beijing, China
- Qingdao Municipal Hospital, University of Health and Rehabilitation Sciences, Qingdao, China
| | - Jing-Ya Zhou
- Center for Orthopedic Surgery, Beijing University of Chinese Medicine Dongzhimen Hospital, Beijing, China
| | - Lu-Yao Huo
- Center for Orthopedic Surgery, Beijing University of Chinese Medicine Dongzhimen Hospital, Beijing, China
| | - Yan-Jun Mo
- Center for Orthopedic Surgery, Beijing University of Chinese Medicine Dongzhimen Hospital, Beijing, China
| | - Hui-Zhong Bai
- Center for Orthopedic Surgery, Beijing University of Chinese Medicine Dongzhimen Hospital, Beijing, China
| | - Yi Zhao
- Center for Orthopedic Surgery, Beijing University of Chinese Medicine Dongzhimen Hospital, Beijing, China
| | - Jing-Pei Ren
- Center for Orthopedic Surgery, Beijing University of Chinese Medicine Dongzhimen Hospital, Beijing, China
| | - Xiao-Hong Mu
- Center for Orthopedic Surgery, Beijing University of Chinese Medicine Dongzhimen Hospital, Beijing, China
| | - Lin Xu
- Center for Orthopedic Surgery, Beijing University of Chinese Medicine Dongzhimen Hospital, Beijing, China
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Zhang P, Zhang J, Kou W, Gu G, Zhang Y, Shi W, Chu P, Liang D, Sun G, Shang J. Comprehensive analysis of a pyroptosis-related gene signature of clinical and biological values in spinal cord injury. Front Neurol 2023; 14:1141939. [PMID: 37273699 PMCID: PMC10237016 DOI: 10.3389/fneur.2023.1141939] [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: 01/13/2023] [Accepted: 04/27/2023] [Indexed: 06/06/2023] Open
Abstract
Background Since some of the clinical examinations are not suitable for patients with severe spinal cord injury (SCI), blood biomarkers have been reported to reflect the severity of SCI. The objective of this study was to screen out the potential biomarkers associated with the diagnosis of SCI by bioinformatics analysis. Methods The microarray expression profiles of SCI were obtained from the Gene Expression Omnibus (GEO) database. Core genes correlated to pyroptosis were obtained by crossing the differential genes, and module genes were obtained by WGCNA analysis and lasso regression. The immune infiltration analysis and GSEA analysis revealed the essential effect of immune cells in the progression of SCI. In addition, the accuracy of the biomarkers in diagnosing SCI was subsequently evaluated and verified using the receiver operating characteristic curve (ROC) and qRT-PCR. Results A total of 423 DEGs were identified, among which 319 genes were upregulated and 104 genes were downregulated. Based on the WGCNA analysis, six potential biomarkers were screened out, including LIN7A, FCGR1A, FGD4, GPR27, BLOC1S1, and GALNT4. The results of ROC curves demonstrated the accurate value of biomarkers related to SCI. The immune infiltration analysis and GSEA analysis revealed the essential effect of immune cells in the progression of SCI, including macrophages, natural killer cells, and neutrophils. The qRT-PCR results verified that FGD4, FCAR1A, LIN7A, BLOC1S1, and GPR27 were significantly upregulated in SCI patients. Conclusion In this study, we identified and verified five immune pyroptosis-related hub genes by WGCNA and biological experiments. It is expected that the five identified potential biomarkers in peripheral white blood cells may provide a novel strategy for early diagnosis.
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Affiliation(s)
- Pingping Zhang
- Department of Orthopedics, Seventh Affiliated Hospital of Shanxi Medical University, Linfen People's Hospital, Linfen, Shanxi, China
| | - Jianping Zhang
- Department of Orthopedics, Tianjin Medical University General Hospital, Tianjin, China
| | - Wenjuan Kou
- School of Pharmaceutical Sciences and Research Center of Basic Medical Sciences, Tianjin Medical University, Tianjin, China
- Department of Disinfection Monitoring, Yongji Disease Control and Prevention Center, Yongji, Shanxi, China
| | - Guangjin Gu
- Department of Orthopedics, Tianjin Medical University General Hospital, Tianjin, China
| | - Yaning Zhang
- Department of Orthopedics, Seventh Affiliated Hospital of Shanxi Medical University, Linfen People's Hospital, Linfen, Shanxi, China
| | - Weihan Shi
- Department of Orthopedics, Seventh Affiliated Hospital of Shanxi Medical University, Linfen People's Hospital, Linfen, Shanxi, China
| | - Pengcheng Chu
- Department of Orthopedics, Seventh Affiliated Hospital of Shanxi Medical University, Linfen People's Hospital, Linfen, Shanxi, China
| | - Dachuan Liang
- Department of Scientific Research Management, Shanxi Medical College Seventh Affiliated Hospital, Linfen People's Hospital, Linfen, Shanxi, China
| | - Guangwei Sun
- Department of Orthopedics, Seventh Affiliated Hospital of Shanxi Medical University, Linfen People's Hospital, Linfen, Shanxi, China
| | - Jun Shang
- Department of Orthopedics, Seventh Affiliated Hospital of Shanxi Medical University, Linfen People's Hospital, Linfen, Shanxi, China
- Department of Orthopedics, Tianjin Medical University General Hospital, Tianjin, China
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Rong Y, Wang Z, Tang P, Wang J, Ji C, Chang J, Zhu Y, Ye W, Bai J, Liu W, Yin G, Yu L, Zhou X, Cai W. Engineered extracellular vesicles for delivery of siRNA promoting targeted repair of traumatic spinal cord injury. Bioact Mater 2023; 23:328-342. [PMID: 36474657 PMCID: PMC9706413 DOI: 10.1016/j.bioactmat.2022.11.011] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2022] [Revised: 10/26/2022] [Accepted: 11/16/2022] [Indexed: 11/26/2022] Open
Abstract
Spinal cord injury (SCI) is a severe disease of the nervous system that causes irreparable damage and loss of function, for which no effective treatments are available to date. Engineered extracellular vesicles (EVs) carrying therapeutic molecules hold promise as an alternative SCI therapy depending on the specific functionalized EVs and the appropriate engineering strategy. In this study, we demonstrated the design of a drug delivery system of peptide CAQK-modified, siRNA-loaded EVs (C-EVs-siRNA) for SCI-targeted therapy. The peptide CAQK was anchored through a chemical modification to the membranes of EVs isolated from induced neural stem cells (iNSCs). CCL2-siRNA was then loaded into the EVs through electroporation. The modified EVs still maintained the basic properties of EVs and showed favorable targeting and therapeutic effects in vitro and in vivo. C-EVs-siRNA specifically delivered siRNA to the SCI region and was taken up by target cells. C-EVs-siRNA used the inherent anti-inflammatory and neuroreparative functions of iNSCs-derived EVs in synergy with the loaded siRNA, thus enhancing the therapeutic effect against SCI. The combination of targeted modified EVs and siRNA effectively regulated the microenvironmental disturbance after SCI, promoted the transformation of microglia/macrophages from M1 to M2 and limited the negative effects of the inflammatory response and neuronal injury on functional recovery in mice after SCI. Thus, engineered EVs are a potentially feasible and efficacious treatment for SCI, and may also be used to develop targeted treatments for other diseases.
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Affiliation(s)
- Yuluo Rong
- Department of Orthopedics, The First Affiliated Hospital of Nanjing Medical University, Nanjing, 210029, Jiangsu, China
| | - Zhuanghui Wang
- Department of Orthopedics, The First Affiliated Hospital of Nanjing Medical University, Nanjing, 210029, Jiangsu, China
| | - Pengyu Tang
- Department of Orthopedics, The First Affiliated Hospital of Nanjing Medical University, Nanjing, 210029, Jiangsu, China
| | - Jiaxing Wang
- Department of Orthopedics, The First Affiliated Hospital of Nanjing Medical University, Nanjing, 210029, Jiangsu, China
| | - Chengyue Ji
- Department of Orthopedics, The First Affiliated Hospital of Nanjing Medical University, Nanjing, 210029, Jiangsu, China
| | - Jie Chang
- Department of Orthopedics, The First Affiliated Hospital of Nanjing Medical University, Nanjing, 210029, Jiangsu, China
| | - Yufeng Zhu
- Department of Orthopedics, The First Affiliated Hospital of Nanjing Medical University, Nanjing, 210029, Jiangsu, China
| | - Wu Ye
- Department of Orthopedics, The First Affiliated Hospital of Nanjing Medical University, Nanjing, 210029, Jiangsu, China
| | - Jianling Bai
- Department of Biostatistics, School of Public Health, Nanjing Medical University, Nanjing, 210029, Jiangsu, China
| | - Wei Liu
- Department of Orthopedics, Second Affiliated Hospital of Naval Medical University, Shanghai, 200003, China
| | - Guoyong Yin
- Department of Orthopedics, The First Affiliated Hospital of Nanjing Medical University, Nanjing, 210029, Jiangsu, China
| | - Lipeng Yu
- Department of Orthopedics, The First Affiliated Hospital of Nanjing Medical University, Nanjing, 210029, Jiangsu, China
| | - Xuhui Zhou
- Department of Orthopedics, Second Affiliated Hospital of Naval Medical University, Shanghai, 200003, China
- Department of Orthopedics, Shanghai General Hospital (Shanghai First People's Hospital), Shanghai Jiao Tong University, Shanghai, 200003, China
| | - Weihua Cai
- Department of Orthopedics, The First Affiliated Hospital of Nanjing Medical University, Nanjing, 210029, Jiangsu, China
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Liu P, Liu M, Xi D, Bai Y, Ma R, Mo Y, Zeng G, Zong S. Short-chain fatty acids ameliorate spinal cord injury recovery by regulating the balance of regulatory T cells and effector IL-17 + γδ T cells. J Zhejiang Univ Sci B 2023; 24:312-325. [PMID: 37056207 PMCID: PMC10106403 DOI: 10.1631/jzus.b2200417] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2022] [Accepted: 12/30/2022] [Indexed: 04/15/2023]
Abstract
Spinal cord injury (SCI) causes motor, sensory, and autonomic dysfunctions. The gut microbiome has an important role in SCI, while short-chain fatty acids (SCFAs) are one of the main bioactive mediators of microbiota. In the present study, we explored the effects of oral administration of exogenous SCFAs on the recovery of locomotor function and tissue repair in SCI. Allen's method was utilized to establish an SCI model in Sprague-Dawley (SD) rats. The animals received water containing a mixture of 150 mmol/L SCFAs after SCI. After 21 d of treatment, the Basso, Beattie, and Bresnahan (BBB) score increased, the regularity index improved, and the base of support (BOS) value declined. Spinal cord tissue inflammatory infiltration was alleviated, the spinal cord necrosis cavity was reduced, and the numbers of motor neurons and Nissl bodies were elevated. Enzyme-linked immunosorbent assay (ELISA), real-time quantitative polymerase chain reaction (qPCR), and immunohistochemistry assay revealed that the expression of interleukin (IL)-10 increased and that of IL-17 decreased in the spinal cord. SCFAs promoted gut homeostasis, induced intestinal T cells to shift toward an anti-inflammatory phenotype, and promoted regulatory T (Treg) cells to secrete IL-10, affecting Treg cells and IL-17+ γδ T cells in the spinal cord. Furthermore, we observed that Treg cells migrated from the gut to the spinal cord region after SCI. The above findings confirm that SCFAs can regulate Treg cells in the gut and affect the balance of Treg and IL-17+ γδ T cells in the spinal cord, which inhibits the inflammatory response and promotes the motor function in SCI rats. Our findings suggest that there is a relationship among gut, spinal cord, and immune cells, and the "gut-spinal cord-immune" axis may be one of the mechanisms regulating neural repair after SCI.
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Affiliation(s)
- Pan Liu
- Department of Spine Osteopathic, the First Affiliated Hospital of Guangxi Medical University, Nanning 530021, China
- Department of Orthopaedics, the Third Affiliated Hospital of Xinxiang Medical University, Xinxiang 453000, China
| | - Mingfu Liu
- Department of Spine Osteopathic, the First Affiliated Hospital of Guangxi Medical University, Nanning 530021, China
| | - Deshuang Xi
- Department of Spine Osteopathic, the First Affiliated Hospital of Guangxi Medical University, Nanning 530021, China
| | - Yiguang Bai
- Department of Spine Osteopathic, the First Affiliated Hospital of Guangxi Medical University, Nanning 530021, China
- Department of Orthopaedics, Nanchong Central Hosipital, the Second Clinical Institute of North Sichuan Medical College, Nanchong 637000, China
| | - Ruixin Ma
- Collaborative Innovation Centre of Regenerative Medicine and Medical BioResource Development and Application Co-constructed by the Province and Ministry, Guangxi Medical University, Nanning 530021, China
| | - Yaomin Mo
- Department of Spine Osteopathic, the First Affiliated Hospital of Guangxi Medical University, Nanning 530021, China
| | - Gaofeng Zeng
- College of Public Hygiene of Guangxi Medical University, Nanning 530021, China.
| | - Shaohui Zong
- Department of Spine Osteopathic, the First Affiliated Hospital of Guangxi Medical University, Nanning 530021, China.
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Tang X, Huang J, Wang W, Su X, Yu Z. Predictors of activation among persons with spinal cord injury during hospitalization: A cross-sectional study. Jpn J Nurs Sci 2023:e12532. [PMID: 36965136 DOI: 10.1111/jjns.12532] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2022] [Revised: 12/05/2022] [Accepted: 02/14/2023] [Indexed: 03/27/2023]
Abstract
AIM To test the contributions of self-efficacy, resilience, social support, and negative moods (i.e., anxiety, depression) to patient activation among persons with spinal cord injury (SCI). METHODS One hundred and twenty-two participants with SCI were recruited from the spinal surgery department at a large general hospital. During the period before discharge after surgery, standardized self-assessment questionnaires were used to collect data on patient activation, self-efficacy, resilience, social support, anxiety, depression, demographics (age, gender, education, marital status), and disease-related information (etiologies, level of injury, American Spinal Injury Association Impairment Scale score). Hierarchical regression analysis, mediation analysis, and moderation analysis were performed in SPSS, Amos, and Jamovi to determine the influencing factors of patient activation. RESULTS Self-efficacy, resilience, social support, anxiety, and depression uniquely explained 38.2% (p < .001) of the variance in patient activation after controlling for demographic and disease-related covariates. The full model explained 53.7% (p < .001) of the variance in patient activation. In the mediation analysis, self-efficacy, resilience, and social support had partial mediating effects (p < .05). In the moderation analysis, marital status moderated the relationship between self-efficacy and patient activation (p < .05). CONCLUSIONS Activation of persons with SCI is a positive psychosocial resource related to higher self-efficacy, resilience, and social support. Marital status may affect activation in persons with SCI. The causal relationship between these psychosocial variables needs to be proved by further intervention studies.
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Affiliation(s)
- Xiangxiang Tang
- School of Nursing, Suzhou Medical College of Soochow University, Suzhou, China
| | - Jin Huang
- Department of Neurosurgery, The First Affiliated Hospital of Wannan Medical College, Wuhu, China
| | - Wenyan Wang
- School of Nursing, Suzhou Medical College of Soochow University, Suzhou, China
| | - Xiaoping Su
- School of Nursing, Suzhou Medical College of Soochow University, Suzhou, China
| | - Zepeng Yu
- Center for Medical Ultrasound, The Affiliated Suzhou Hospital of Nanjing Medical University, Suzhou, China
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79
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Yang C, Yang X. Early versus late surgical intervention for cervical spinal cord injury: A protocol for systematic review and meta-analysis. Medicine (Baltimore) 2023; 102:e33322. [PMID: 36961173 PMCID: PMC10035988 DOI: 10.1097/md.0000000000033322] [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: 02/19/2023] [Accepted: 02/28/2023] [Indexed: 03/25/2023] Open
Abstract
BACKGROUND Acute traumatic cervical spinal cord injury (SCI) is a catastrophic event with substantial physical, emotional, and economic burdens to patients, families, and society. Spinal cord decompression is recommended for the treatment of acute SCI. However, the optimal surgical timing remains controversial. Therefore, we perform a protocol for systematic review and meta-analysis to compare the efficacy of early and late surgical intervention for acute SCI. METHODS This systematic review and meta-analysis follows the Preferred Reporting Items for Systematic Reviews and Meta-Analyses Protocols statement, which have been registered in advance in the International prospective register of systematic reviews (registration number: CRD42023397592). We will search the following databases for randomized controlled trials: the Cochrane Skin Group Trials Register, MEDLINE, EMBASE, the Cochrane Central Register of Controlled Trials, Chinese Biomedical Literature Database, Chinese Medical Current Content, and China National Knowledge Infrastructure. The risk of bias of the included studies will be appraised using the Cochrane Collaboration tool for randomized controlled trials. Statistical analysis will be performed using IBM SPSS Statistics (Armonk, NY). RESULT The results of this systematic review will be published in a peer-reviewed journal. CONCLUSION This systematic review will provide evidence regarding the optimal timing for spinal cord decompression in patients with acute SCI.
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Affiliation(s)
- Chaowei Yang
- Graduate School of Hebei North University, Zhangjiakou City, Hebei Province, China
| | - Xinming Yang
- The First Affiliated Hospital of Hebei North University, Zhangjiakou City, Hebei Province, China
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80
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A critical appraisal of clinical practice guidelines for diagnostic imaging in the spinal cord injury. Spine J 2023:S1529-9430(23)00107-9. [PMID: 36934792 DOI: 10.1016/j.spinee.2023.03.003] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/04/2022] [Revised: 02/22/2023] [Accepted: 03/10/2023] [Indexed: 03/21/2023]
Abstract
BACKGROUND CONTEXT Spinal cord injury (SCI) is a serious health problem which carries a heavy economic burden. Imaging technologies play an important role in the diagnosis of SCI. Although several organizations have developed guidelines for diagnostic imaging of SCI, their quality has not yet been systematically assessed. PURPOSE We aim to conduct a systematic review to appraise SCI guidelines and summarize their recommendations for diagnostic imaging of SCI. STUDY DESIGN Systematic review. METHODS We searched Embase, Medline, Web of Science, Cochrane, some guideline-specific databases (e.g., Scottish Intercollegiate Guidelines Network) and Google Scholar from January 2000 to January 2022. We included guidelines developed by nationally recognized organizations. If multiple versions could be obtained, we included the latest one. We appraised included guidelines using the AGREE II instrument which contains six domains (e.g., scope and purpose). We also extracted recommendations and assessed their supporting evidence using levels of evidence (LOE). The evidence was categorized as A (the best quality), B, C, and D (the worst quality). RESULTS Seven guidelines (2008 to 2020) were included. They all received the lowest scores in the domain of applicability. All guidelines (7/7, 100%) recommended magnetic resonance imaging (MRI) in patients with SCI or SCI without radiographic abnormality (SCIWORA). A total of 12 recommendations involving patient age (e.g., adult and child patients), timing of MRI (e.g., as soon as possible and in the acute period), symptoms indicated for MRI (e.g., a stiff spine and midline tenderness, suspected disc and posterior ligamentous complex injury, and neurological deficit), and types of MRI (e.g., T2-weighted imaging and diffusion tensor imaging) were extracted. Among them, the LOE was C in nine (75%) recommendations and D in three (25%) recommendations. CONCLUSIONS Seven guidelines were included in the present systematic review, and all of them showed the worst applicability scores in the AGREE II instrument. They all weakly recommended MRI for patients with suspected SCI or SCIWORA based on a low LOE.
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Wang J, Cheng C, Liu Z, Lin Y, Yang L, Zhang Z, Sun X, Zhou M, Jing P, Zhong Z. Inhibition of A1 Astrocytes and Activation of A2 Astrocytes for the Treatment of Spinal Cord Injury. Neurochem Res 2023; 48:767-780. [PMID: 36418652 DOI: 10.1007/s11064-022-03820-9] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2022] [Revised: 10/20/2022] [Accepted: 11/09/2022] [Indexed: 11/25/2022]
Abstract
Spinal cord injury (SCI) is a serious injury to the central nervous system that causes significant physical and psychological trauma to the patient. SCI includes primary spinal cord injuries and secondary spinal cord injuries. The secondary injury refers to the pathological process or reaction after the primary injury. Although SCI has always been thought to be an incurable injury, the human nerve has the ability to repair itself after an injury. However, the reparability is limited because glial scar formation impedes functional recovery. There is a type of astrocyte that can differentiate into two forms of reactive astrocytes known as 'A1' and 'A2' astrocytes. A1 astrocytes release cytotoxic chemicals that cause neurons and oligodendrocytes to die and perform a harmful role. A2 astrocytes can produce neurotrophic factors and act as neuroprotectors. This article discusses ways to block A1 astrocytes while stimulating A2 astrocytes to formulate a new treatment for 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, 646000, Sichuan, China
| | - Cai Cheng
- Key Laboratory of Medical Electrophysiology, Ministry of Education, School of Pharmacy, Southwest Medical University, Luzhou, 646000, Sichuan, China
| | - Zhongbing Liu
- Key Laboratory of Medical Electrophysiology, Ministry of Education, School of Pharmacy, Southwest Medical University, Luzhou, 646000, Sichuan, China
| | - Yan Lin
- Key Laboratory of Medical Electrophysiology, Ministry of Education, School of Pharmacy, Southwest Medical University, Luzhou, 646000, Sichuan, China
| | - Lingling Yang
- Key Laboratory of Medical Electrophysiology, Ministry of Education, School of Pharmacy, Southwest Medical University, Luzhou, 646000, Sichuan, China
| | - Zijun Zhang
- Key Laboratory of Medical Electrophysiology, Ministry of Education, School of Pharmacy, Southwest Medical University, Luzhou, 646000, Sichuan, China
| | - Xiaoduan Sun
- Key Laboratory of Medical Electrophysiology, Ministry of Education, School of Pharmacy, Southwest Medical University, Luzhou, 646000, Sichuan, China
| | - Meiling Zhou
- Department of Pharmacy, The Affiliated Hospital of Southwest Medical University, Luzhou, 646000, Sichuan, China
| | - Pei Jing
- Department of Pharmacy, The Affiliated Hospital of Southwest Medical University, Luzhou, 646000, Sichuan, China.
| | - Zhirong Zhong
- Key Laboratory of Medical Electrophysiology, Ministry of Education, School of Pharmacy, Southwest Medical University, Luzhou, 646000, Sichuan, China.
- Central Nervous System Drug Key Laboratory of Sichuan Province, Luzhou, 646000, Sichuan, China.
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Xiong T, Yang K, Zhao T, Zhao H, Gao X, You Z, Fan C, Kang X, Yang W, Zhuang Y, Chen Y, Dai J. Multifunctional Integrated Nanozymes Facilitate Spinal Cord Regeneration by Remodeling the Extrinsic Neural Environment. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2023; 10:e2205997. [PMID: 36646515 PMCID: PMC9982579 DOI: 10.1002/advs.202205997] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 10/15/2022] [Revised: 12/16/2022] [Indexed: 06/17/2023]
Abstract
High levels of reactive oxygen species (ROS) and inflammation create a complicated extrinsic neural environment that dominates the initial post-injury period after spinal cord injury (SCI). The compensatory pathways between ROS and inflammation limited the efficacy of modulating the above single treatment regimen after SCI. Here, novel "nanoflower" Mn3 O4 integrated with "pollen" IRF-5 SiRNA was designed as a combination antioxidant and anti-inflammatory treatment after SCI. The "nanoflower" and "pollen" structure was encapsulated with a neutrophil membrane for protective and targeted delivery. Furthermore, valence-engineered nanozyme Mn3 O4 imitated the cascade response of antioxidant enzymes with a higher substrate affinity compared to natural antioxidant enzymes. Nanozymes effectively catalyzed ROS to generate O2 , which is advantageous for reducing oxidative stress and promoting angiogenesis. The screened "pollen" IRF-5 SiRNA could reverse the inflammatory phenotype by reducing interferon regulatory factors-5 (IRF-5) expression (protein level: 73.08% and mRNA level: 63.10%). The decreased expression of pro-inflammatory factors reduced the infiltration of inflammatory cells, resulting in less neural scarring. In SCI rats, multifunctional nanozymes enhanced the proliferation of various neuronal subtypes (motor neurons, interneurons, and sensory neurons) and the recovery of locomotor function, demonstrating that the remodeling of the extrinsic neural environment is a promising strategy to facilitate nerve regeneration.
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Affiliation(s)
- Tiandi Xiong
- School of Nano Technology and Nano BionicsUniversity of Science and Technology of ChinaHefei230026China
- Key Laboratory for Nano‐Bio Interface ResearchDivision of NanobiomedicineSuzhou Institute of Nano‐Tech and Nano‐BionicsChinese Academy of SciencesSuzhou215123China
| | - Keni Yang
- Key Laboratory for Nano‐Bio Interface ResearchDivision of NanobiomedicineSuzhou Institute of Nano‐Tech and Nano‐BionicsChinese Academy of SciencesSuzhou215123China
| | - Tongtong Zhao
- School of Nano Technology and Nano BionicsUniversity of Science and Technology of ChinaHefei230026China
- Key Laboratory for Nano‐Bio Interface ResearchDivision of NanobiomedicineSuzhou Institute of Nano‐Tech and Nano‐BionicsChinese Academy of SciencesSuzhou215123China
| | - Haitao Zhao
- Key Laboratory for Nano‐Bio Interface ResearchDivision of NanobiomedicineSuzhou Institute of Nano‐Tech and Nano‐BionicsChinese Academy of SciencesSuzhou215123China
| | - Xu Gao
- Key Laboratory for Nano‐Bio Interface ResearchDivision of NanobiomedicineSuzhou Institute of Nano‐Tech and Nano‐BionicsChinese Academy of SciencesSuzhou215123China
| | - Zhifeng You
- Key Laboratory for Nano‐Bio Interface ResearchDivision of NanobiomedicineSuzhou Institute of Nano‐Tech and Nano‐BionicsChinese Academy of SciencesSuzhou215123China
| | - Caixia Fan
- Key Laboratory for Nano‐Bio Interface ResearchDivision of NanobiomedicineSuzhou Institute of Nano‐Tech and Nano‐BionicsChinese Academy of SciencesSuzhou215123China
| | - Xinyi Kang
- Key Laboratory for Nano‐Bio Interface ResearchDivision of NanobiomedicineSuzhou Institute of Nano‐Tech and Nano‐BionicsChinese Academy of SciencesSuzhou215123China
| | - Wen Yang
- School of Nano Technology and Nano BionicsUniversity of Science and Technology of ChinaHefei230026China
- Key Laboratory for Nano‐Bio Interface ResearchDivision of NanobiomedicineSuzhou Institute of Nano‐Tech and Nano‐BionicsChinese Academy of SciencesSuzhou215123China
| | - Yan Zhuang
- School of Nano Technology and Nano BionicsUniversity of Science and Technology of ChinaHefei230026China
- Key Laboratory for Nano‐Bio Interface ResearchDivision of NanobiomedicineSuzhou Institute of Nano‐Tech and Nano‐BionicsChinese Academy of SciencesSuzhou215123China
| | - Yanyan Chen
- Key Laboratory for Nano‐Bio Interface ResearchDivision of NanobiomedicineSuzhou Institute of Nano‐Tech and Nano‐BionicsChinese Academy of SciencesSuzhou215123China
| | - Jianwu Dai
- Key Laboratory for Nano‐Bio Interface ResearchDivision of NanobiomedicineSuzhou Institute of Nano‐Tech and Nano‐BionicsChinese Academy of SciencesSuzhou215123China
- State Key Laboratory of Molecular Development BiologyInstitute of Genetics and Developmental BiologyChinese Academy of SciencesBeijing100101China
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Szymoniuk M, Mazurek M, Dryla A, Kamieniak P. The application of 3D-bioprinted scaffolds for neuronal regeneration after traumatic spinal cord injury - A systematic review of preclinical in vivo studies. Exp Neurol 2023; 363:114366. [PMID: 36858280 DOI: 10.1016/j.expneurol.2023.114366] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2023] [Revised: 02/16/2023] [Accepted: 02/24/2023] [Indexed: 03/03/2023]
Abstract
BACKGROUND The implantation of 3D-bioprinted scaffolds represents a promising therapeutic approach for traumatic Spinal Cord Injury (SCI), currently investigating in preclinical in vivo studies. However, a systematic review of the relevant literature has not been performed to date. Hence, we systematically reviewed the outcomes of the application of 3D-bioprinted implants in the treatment of SCI based on studies conducted on experimental animal models. METHODS We searched PubMed, Scopus, Web of Science, and Cochrane Library databases. Manuscripts in other designs than in vivo preclinical study and written in other languages than English were excluded. A risk of bias assessment was performed using SYRCLE's tool. The quality of included articles was assessed by ARRIVE guidelines. Extracted data were synthesized only qualitatively because the data were not suitable for conducting the meta-analysis. RESULTS Overall, eleven animal studies reporting on the transection SCI rat model were included. Six of included studies investigated 3D-bioprinted scaffolds enriched with stem cells, two studies - 3D-bioprinted scaffolds combined with growth factors, and three studies - stand-alone 3D-bioprinted scaffolds. In all included studies the application of 3D-bioprinted scaffolds led to significant improvement in functional scores compared with no treated SCI rats. The functional recovery corresponded with the changes observed at the injury site in histological analyses. Seven studies demonstrated medium, three studies - high, and one study - low risk of bias. Moreover, some of the included studies were conducted in the same scientific center. The overall quality assessment ratio amounted to 0.60, which was considered average quality. CONCLUSION The results of our systematic review suggest that 3D-bioprinted scaffolds may be a feasible therapeutic approach for the treatment of SCI. Further evidence obtained on other experimental SCI models is necessary before the clinical translation of 3D-bioprinted scaffolds.
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Affiliation(s)
- Michał Szymoniuk
- Student Scientific Association at the Department of Neurosurgery and Pediatric Neurosurgery, Medical University of Lublin, Jaczewskiego 8, 20-090 Lublin, Poland.
| | - Marek Mazurek
- Department of Neurosurgery and Pediatric Neurosurgery, Medical University of Lublin, Jaczewskiego 8, 20-090 Lublin, Poland
| | - Aleksandra Dryla
- Student Scientific Association at the Department of Neurosurgery and Pediatric Neurosurgery, Medical University of Lublin, Jaczewskiego 8, 20-090 Lublin, Poland
| | - Piotr Kamieniak
- Department of Neurosurgery and Pediatric Neurosurgery, Medical University of Lublin, Jaczewskiego 8, 20-090 Lublin, Poland
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Liu Y, Zhang F, Sun Q, Liang L. Adalimumab combined with erythropoietin improves recovery from spinal cord injury by suppressing microglial M1 polarization-mediated neural inflammation and apoptosis. Inflammopharmacology 2023; 31:887-897. [PMID: 36642757 DOI: 10.1007/s10787-022-01090-z] [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: 08/18/2022] [Accepted: 10/17/2022] [Indexed: 01/16/2023]
Abstract
OBJECTIVE Adalimumab (ADM), a humanized antibody against tumour necrosis factor (TNF), is widely applied in treating inflammatory and autoimmune diseases, but its usage in spinal cord injury (SCI) is rarely reported. Hence, this study aimed to explore the effect of ADM with or without erythropoietin (EPO) on microglial polarization, neuroinflammation, neural apoptosis, and functional recovery in SCI. METHODS Primary microglia were stimulated with lipopolysaccharide (LPS) and then treated with ADM, EPO, or ADM combined with EPO. Then, primary neurons were incubated in the microglial culture medium. SCI rats were established and then treated with ADM, EPO or ADM combined with EPO. RESULTS ADM suppressed LPS-induced microglial M1 polarization, as reflected by downregulated iNOS and CD86 expression, and neuroinflammation, as reflected by decreased TNF-α, IL-1β, and IL-6 expression, in a dose-dependent manner. Moreover, ADM inhibited microglia-induced neural apoptosis, as reflected by TUNEL assay results and the expression of apoptotic markers (C-Caspase3 and Bcl2), in a dose-dependent manner. EPO monotherapy displayed an effect similar to that of ADM monotherapy. Furthermore, ADM combined with EPO therapy exhibited greater effects than either monotherapy in terms of inhibiting microglial M1 polarization, neuroinflammation, and neural apoptosis. In vivo experiments confirmed the findings of the in vitro experiments and showed that ADM combined with EPO improved SCI functional recovery and neural injury compared with monotherapy. CONCLUSION ADM combined with EPO improves recovery from SCI by suppressing microglial M1 polarization-mediated neural inflammation and apoptosis.
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Affiliation(s)
- Yanming Liu
- Department of Physical Medicine and Rehabilitation, Zibo Central Hospital, No. 54 Communist Youth League West Road, Zhangdian District, Zibo, 255000, Shandong, China
| | - Feiyue Zhang
- Obstetrics Department, Zibo Central Hospital, Zibo, Shandong, China
| | - Qi Sun
- Department of Scientific Research and International Cooperation, Zibo Central Hospital, Zibo, Shandong, China
| | - Lichao Liang
- Department of Physical Medicine and Rehabilitation, Zibo Central Hospital, No. 54 Communist Youth League West Road, Zhangdian District, Zibo, 255000, Shandong, China.
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85
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He W, Shi C, Yin J, Huang F, Yan W, Deng J, Zhang B, Wang B, Wang H. Spinal cord decellularized matrix scaffold loaded with engineered basic fibroblast growth factor-overexpressed human umbilical cord mesenchymal stromal cells promoted the recovery of spinal cord injury. J Biomed Mater Res B Appl Biomater 2023; 111:51-61. [PMID: 35799479 DOI: 10.1002/jbm.b.35131] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2022] [Revised: 06/13/2022] [Accepted: 06/28/2022] [Indexed: 11/11/2022]
Abstract
Spinal cord injury (SCI) will lead to irreversible damage of sensory and motor function of central nervous system, which seriously affects patient's quality of life. A variety of nerve engineering materials carrying various stem cells and cell growth factors had used to promote the repair of SCI, but they could not mimic the actual matric niche at spinal cord to promote cell proliferation and differentiation. Thus, developing novel biomaterial providing better niche of spinal cord is a new strategy to treat the severe SCI. In this study, we constructed porcine spinal cord decellularized matrix scaffold (SC-DM) with biocompatibility to load engineered basic fibroblast growth factor-overexpressing human umbilical cord mesenchymal stromal cells (bFGF-HUCMSCs) for treating SCI. The continuously released bioactive bFGF factors from grafted bFGF-HUCMSCs and three-dimensional niche by SC-DM promoted the differentiation of endogenous stem cells into neurons with nerve conduction function, leading a markedly motor function recovery of SCI. These results indicated that the functional bFGF-HUCMSCs/SC-DM scaffold provided more suitable matric niche for nerve cells, that would be a promising strategy for the clinical application of SCI.
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Affiliation(s)
- Wenli He
- Department of Neurology, The Affiliated Hospital of Qingdao University, Qingdao, Shandong, China
| | - Chunying Shi
- Department of Human Anatomy, Histology and Embryology, School of Basic Medicine, Qingdao University, Qingdao, Shandong, China
| | - Jia Yin
- Department of Neurology, The Affiliated Hospital of Qingdao University, Qingdao, Shandong, China
| | - Feifei Huang
- Clinical Stem Cell Center, The Affiliated Drum Tower Hospital of Nanjing University Medical School, Nanjing, China
| | - Wenjing Yan
- Department of Neurology, The Affiliated Hospital of Qingdao University, Qingdao, Shandong, China
| | - Jin Deng
- Department of Neurology, The Affiliated Hospital of Qingdao University, Qingdao, Shandong, China
| | - Bing Zhang
- Department of Neurology, The Affiliated Hospital of Qingdao University, Qingdao, Shandong, China
| | - Bin Wang
- Clinical Stem Cell Center, The Affiliated Drum Tower Hospital of Nanjing University Medical School, Nanjing, China
| | - Haiping Wang
- Department of Neurology, The Affiliated Hospital of Qingdao University, Qingdao, Shandong, China
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Vinit S, Michel-Flutot P, Mansart A, Fayssoil A. Effects of C2 hemisection on respiratory and cardiovascular functions in rats. Neural Regen Res 2023; 18:428-433. [PMID: 35900441 PMCID: PMC9396504 DOI: 10.4103/1673-5374.346469] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Abstract
High cervical spinal cord injuries induce permanent neuromotor and autonomic deficits. These injuries impact both central respiratory and cardiovascular functions through modulation of the sympathetic nervous system. So far, cardiovascular studies have focused on models of complete contusion or transection at the lower cervical and thoracic levels and diaphragm activity evaluations using invasive methods. The present study aimed to evaluate the impact of C2 hemisection on different parameters representing vital functions (i.e., respiratory function, cardiovascular, and renal filtration parameters) at the moment of injury and 7 days post-injury in rats. No ventilatory parameters evaluated by plethysmography were impacted during quiet breathing after 7 days post-injury, whereas permanent diaphragm hemiplegia was observed by ultrasound and confirmed by diaphragmatic electromyography in anesthetized rats. Interestingly, the mean arterial pressure was reduced immediately after C2 hemisection, with complete compensation at 7 days post-injury. Renal filtration was unaffected at 7 days post-injury; however, remnant systolic dysfunction characterized by a reduced left ventricular ejection fraction persisted at 7 days post-injury. Taken together, these results demonstrated that following C2 hemisection, diaphragm activity and systolic function are impacted up to 7 days post-injury, whereas the respiratory and cardiovascular systems display vast adaptation to maintain ventilatory parameters and blood pressure homeostasis, with the latter likely sustained by the remaining descending sympathetic inputs spared by the initial injury. A better broad characterization of the physiopathology of high cervical spinal cord injuries covering a longer time period post-injury could be beneficial for understanding evaluations of putative therapeutics to further increase cardiorespiratory recovery.
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87
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Qian J, Shen CL, Fang C, Sun J. Oscillating field stimulation promotes neurogenesis of neural stem cells through miR-124/Tal1 axis to repair spinal cord injury in rats. Neural Regen Res 2023; 18:895-900. [DOI: 10.4103/1673-5374.353505] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022] Open
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88
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Lascu CF, Buhaș CL, Mekeres GM, Bulzan M, Boț RB, Căiță GA, Voiță IB, Pogan MD. Advantages and Limitations in the Evaluation of the Neurological and Functional Deficit in Patients with Spinal Cord Injuries. Clin Pract 2022; 13:14-21. [PMID: 36648842 PMCID: PMC9844280 DOI: 10.3390/clinpract13010002] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2022] [Revised: 12/20/2022] [Accepted: 12/22/2022] [Indexed: 12/28/2022] Open
Abstract
(1) Background: Vertebro-medullary trauma (VMT) causes osteo-articular injuries in a varied anatomical lesion associated with multiple clinical manifestations and therapeutic indications. The neurological evaluation of patients who have suffered a spinal cord injury (SCI) is costly in testing the motor and sensory function. To standardize the assessment, several scales are used that measure the neurological deficit in order to guide subsequent treatment according to complete or incomplete SCI. The aim of this study is to identify and present the relevant tools for assessing SCI. (2) Methods: Relevant SCI studies were used for a fact-finding investigation from a rational and critical perspective of this field of research. The relationship between clinical tools and those with a psychosocial component was assessed based on studies reported in the literature. (3) Results: SCI severity scales have been proposed throughout to be able to estimate the functional prognosis of victims of these traumatic events. These tools can be divided into scales for assessing the neurological deficit due to trauma, and functional scales that assess the ability to perform daily activities, self-care, etc. (4) Conclusions: The closest scale to the need for standardization and the most accurate assessment of neurological deficits secondary to SCI is ASIA/IMSOP.
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Affiliation(s)
- Camelia Florentina Lascu
- Doctoral School of Biomedical Sciences, Faculty of Medicine and Pharmacy, University of Oradea, 410087 Oradea, Romania
| | - Camelia Liana Buhaș
- Morphological Disciplines Department, Faculty of Medicine and Pharmacy, University of Oradea, 410087 Oradea, Romania
- Department of Legal Medicine, County Clinical Emergency Hospital of Oradea, 410169 Oradea, Romania
| | - Gabriel Mihai Mekeres
- Doctoral School of Biomedical Sciences, Faculty of Medicine and Pharmacy, University of Oradea, 410087 Oradea, Romania
- Correspondence:
| | - Mădălin Bulzan
- Doctoral School of Biomedical Sciences, Faculty of Medicine and Pharmacy, University of Oradea, 410087 Oradea, Romania
| | - Robert Bogdan Boț
- Doctoral School of Biomedical Sciences, Faculty of Medicine and Pharmacy, University of Oradea, 410087 Oradea, Romania
| | - Georgiana Albina Căiță
- Doctoral School of Biomedical Sciences, Faculty of Medicine and Pharmacy, University of Oradea, 410087 Oradea, Romania
| | - Ioan Bogdan Voiță
- Department of Anesthesiology and Intensive Care, Regional Institute of Gastroenterology and Hepatology “Prof. Octavian Fodor”, 400162 Cluj-Napoca, Romania
| | - Mihaela Dana Pogan
- Department of Dental Medicine, Faculty of Medicine and Pharmacy, University of Oradea, 410087 Oradea, Romania
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89
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Marchesini N, Rubiano AM, Sala F, Demetriades AK, Alves OL. Secondary damage management of acute traumatic spinal cord injury in low and middle-income countries: A survey on a global scale (Part III). BRAIN & SPINE 2022; 2:101694. [PMID: 36605387 PMCID: PMC9808472 DOI: 10.1016/j.bas.2022.101694] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 05/31/2022] [Revised: 08/16/2022] [Accepted: 11/23/2022] [Indexed: 12/12/2022]
Abstract
•In LMICs, several factor may affect the applicability of guidelines for secondary damage control of spinal cord injury.•In LMICs, the use of steroids for spinal cord injury is heterogeneous and admissions to an intensive care units are limited.•The delays for surgical decompression of spinal cord injury can be significan and vary across income and geographic region.•Transfer times seem to be the most common reason for surgical delay in all income and geographic regions.•Costs for surgery for spinal trauma may be a significant barrier to guideline adherence, especially in low-resource settings.
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Affiliation(s)
- Nicolò Marchesini
- Department of Neurosurgery, University Hospital Borgo Trento, Verona, Italy,Corresponding author. Department of Neurosurgery, University Hospital Borgo Trento, Piazzale Stefani 1, 37126, Verona, Italy.
| | - Andrés M. Rubiano
- Neuroscience Institute, Universidad El Bosque, Bogotá, Colombia,Meditech Foundation, Cali, Colombia
| | - Francesco Sala
- Department of Neurosurgery, University Hospital Borgo Trento, Verona, Italy
| | - Andreas K. Demetriades
- Department of Neurosurgery, Royal Infirmary, Edinburgh, UK,Department of Neurosurgery, Leiden University, the Netherlands
| | - Oscar L. Alves
- Department of Neurosurgery, Centro Hospitalar de Gaia/Espinho, Vila Nova de Gaia, Portugal,Department of Neurosurgery, Hospital Lusiadas Porto, Porto, Portugal
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90
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Stem Cell Strategies in Promoting Neuronal Regeneration after Spinal Cord Injury: A Systematic Review. Int J Mol Sci 2022; 23:ijms232112996. [PMID: 36361786 PMCID: PMC9657320 DOI: 10.3390/ijms232112996] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/04/2022] [Revised: 10/09/2022] [Accepted: 10/25/2022] [Indexed: 11/25/2022] Open
Abstract
Spinal cord injury (SCI) is a devastating condition with a significant medical and socioeconomic impact. To date, no effective treatment is available that can enable neuronal regeneration and recovery of function at the damaged level. This is thought to be due to scar formation, axonal degeneration and a strong inflammatory response inducing a loss of neurons followed by a cascade of events that leads to further spinal cord damage. Many experimental studies demonstrate the therapeutic effect of stem cells in SCI due to their ability to differentiate into neuronal cells and release neurotrophic factors. Therefore, it appears to be a valid strategy to use in the field of regenerative medicine. This review aims to provide an up-to-date summary of the current research status, challenges, and future directions for stem cell therapy in SCI models, providing an overview of this constantly evolving and promising field.
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91
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Hu X, Zhang Y, Wang L, Ding J, Li M, Li H, Wu L, Zeng Z, Xia H. Microglial activation in the motor cortex mediated NLRP3-related neuroinflammation and neuronal damage following spinal cord injury. Front Cell Neurosci 2022; 16:956079. [PMID: 36339822 PMCID: PMC9630363 DOI: 10.3389/fncel.2022.956079] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2022] [Accepted: 07/27/2022] [Indexed: 12/30/2023] Open
Abstract
Spinal cord injury (SCI) is a traumatic event that can lead to neurodegeneration. Neuronal damage in the primary motor cortex (M1) can hinder motor function recovery after SCI. However, the exact mechanisms involved in neuronal damage after SCI remain incompletely understood. In this study, we found that microglia were activated in M1 after SCI, which triggered Nod-like receptor protein 3 (NLRP3) related chronic neuroinflammation and neuronal damage in vivo. Meanwhile, treatment with the microglia inhibitor minocycline reduced inflammation-induced neuronal damage in M1, protected the integrity of the motor conduction pathway, and promoted motor function recovery. Furthermore, we simulated chronic inflammation in M1 after SCI by culturing the primary neurons in primary microglia-conditioned medium, and observed that the injury to the primary neurons also occurred in vitro; however, as observed in vivo, these effects could be mitigated by minocycline treatment. Our results indicated that microglial activation in M1 mediates NLRP3-related neuroinflammation and causes the injury to M1 neurons, thereby impairing the integrity of the motor conduction pathway and inhibiting motor function recovery. These findings might contribute to the identification of novel therapeutic strategies for SCI.
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Affiliation(s)
- Xvlei Hu
- Department of Neurosurgery, Shanxi Provincial People's Hospital, Taiyuan, China
- School of Clinical Medicine, Ningxia Medical University, Yinchuan, China
- Ningxia Key Laboratory of Craniocerebral Diseases, Ningxia Medical University, Yinchuan, China
| | - Yifan Zhang
- School of Clinical Medicine, Ningxia Medical University, Yinchuan, China
- Ningxia Human Stem Cell Research Institute, General Hospital of Ningxia Medical University, Yinchuan, China
| | - Lei Wang
- Department of Neurosurgery, Henan Provincial People's Hospital, Zhengzhou, China
| | - Jiangwei Ding
- Ningxia Key Laboratory of Craniocerebral Diseases, Ningxia Medical University, Yinchuan, China
| | - Mei Li
- School of Clinical Medicine, Ningxia Medical University, Yinchuan, China
- Ningxia Key Laboratory of Craniocerebral Diseases, Ningxia Medical University, Yinchuan, China
| | - Hailiang Li
- Ningxia Key Laboratory of Craniocerebral Diseases, Ningxia Medical University, Yinchuan, China
| | - Liang Wu
- Department of Neurosurgery, General Hospital of Ningxia Medical University, Yinchuan, China
| | - Zhong Zeng
- School of Clinical Medicine, Ningxia Medical University, Yinchuan, China
- Ningxia Key Laboratory of Craniocerebral Diseases, Ningxia Medical University, Yinchuan, China
| | - Hechun Xia
- Ningxia Human Stem Cell Research Institute, General Hospital of Ningxia Medical University, Yinchuan, China
- Department of Neurosurgery, General Hospital of Ningxia Medical University, Yinchuan, China
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92
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Wang Y, Chen H, Wang J, Chen X, Chen L. Exploring the mechanism of Buyang Huanwu Decoction in the treatment of spinal cord injury based on network pharmacology and molecular docking. Medicine (Baltimore) 2022; 101:e31023. [PMID: 36221378 PMCID: PMC9542821 DOI: 10.1097/md.0000000000031023] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/05/2022] Open
Abstract
Buyang Huanwu Decoction, a traditional Chinese medicine decoction, is widely used to treat spinal cord injury in China. However, the underlying mechanism of this decoction in treating spinal cord injury is unclear. This study used network pharmacology and molecular docking to examine the pharmacological mechanism of Buyang Huanwu Decoction in prevention and treatment of spinal cord injury. The active compounds and target genes of Buyang Huanwu Decoction were collected from the Traditional Chinese Medicine Systems Pharmacology and the SwissTargetPrediction Database. The network diagram of "traditional Chinese medicine compound target" was constructed by Cytoscape software. Genetic data of spinal cord injury were obtained by GeneCards database. According to the intersection of Buyang Huanwu Decoction's targets and disease targets, the core targets were searched. The protein-protein interaction network were constructed using the STRING and BisoGenet platforms. Meanwhile, gene ontology enrichment and Kyoto encyclopedia of genes, and genome pathway were performed on the intersection targets by Metascape. Molecular docking technology was adopted to verify the combination of main components and core targets. A total of 109 active compounds and 5440 prediction targets were screened from 7 Chinese herbal medicines of Buyang Huanwu Decoction, with 98 active components and 49 related prediction targets being strongly linked to Spinal Cord Injury. By studying protein-protein interaction network, a total of 8 core proteins were identified, primarily interleukin-6, tumor protein P53, epidermal growth factor receptor, and others. Positive regulation of kinase activity regulation of reaction to inorganic chemicals are the basic biological processes. Buyang Huanwu Decoction cures Spinal Cord Injury primarily by moderating immunological inflammation, apoptosis, and oxidative stress, which involves the cancer pathway, the HIF-1 signaling pathway, the p53 signaling pathway, the MAPK signaling pathway, and so on. The results of molecular docking demonstrated that the primary components could attach to the target protein effectively. Finally, the mechanism of Buyang Huanwu Decoction in the treatment of spinal cord injury through multicomponent, multitarget, and multichannel was deeply explored. And it offers new ideas and directions for future research on the mechanism of the treatment of spinal cord injury.
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Affiliation(s)
- Ying Wang
- Department of Basic Medicine, Sichuan Vocational College of Health and Rehabilitation, Zigong, China
| | - Haixu Chen
- Department of Basic Medicine, Sichuan Vocational College of Health and Rehabilitation, Zigong, China
| | - Junwei Wang
- Department of Pediatric Surgery and Vascular Surgery, Zigong Fourth People’s Hospital, Zigong, China
| | - Xin Chen
- Department of Integrated Traditional Chinese and Western Medicine for Pulmonary Disease, Zigong First People’s Hospital, Zigong, China
| | - Lan Chen
- Department of Basic Medicine, Sichuan Vocational College of Health and Rehabilitation, Zigong, China
- * Correspondence: Lan Chen, Department of basic medicine, Sichuan Vocational College of Health and Rehabilitation, East New Town, Yantan District, Zigong City, Sichuan Province 643000, China (e-mail: )
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93
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Huang Z, Wang J, Li C, Zheng W, He J, Wu Z, Tang J. Application of natural antioxidants from traditional Chinese medicine in the treatment of spinal cord injury. Front Pharmacol 2022; 13:976757. [PMID: 36278149 PMCID: PMC9579378 DOI: 10.3389/fphar.2022.976757] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2022] [Accepted: 09/20/2022] [Indexed: 11/18/2022] Open
Abstract
Spinal cord injury (SCI) is a devastating central nervous system disease, caused by physical traumas. With the characteristic of high disability rate, catastrophic dysfunction, and enormous burden on the patient’s family, SCI has become a tough neurological problem without efficient treatments. Contemporarily, the pathophysiology of SCI comprises complicated and underlying mechanisms, in which oxidative stress (OS) may play a critical role in contributing to a cascade of secondary injuries. OS substantively leads to ion imbalance, lipid peroxidation, inflammatory cell infiltration, mitochondrial disorder, and neuronal dysfunction. Hence, seeking the therapeutic intervention of alleviating OS and appropriate antioxidants is an essential clinical strategy. Previous studies have reported that traditional Chinese medicine (TCM) has antioxidant, anti-inflammatory, antiapoptotic and neuroprotective effects on alleviating SCI. Notably, the antioxidant effects of some metabolites and compounds of TCM have obtained numerous verifications, suggesting a potential therapeutic strategy for SCI. This review aims at investigating the mechanisms of OS in SCI and highlighting some TCM with antioxidant capacity used in the treatment of SCI.
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Affiliation(s)
- Zhihua Huang
- Zhongshan Hospital of Traditional Chinese Medicine Affiliated to Guangzhou University of Chinese Medicine, Zhongshan, China
| | - Jingyi Wang
- Faculty of Chinese Medicine, Macau University of Science and Technology, Macau, China
| | - Chun Li
- Zhongshan Hospital of Traditional Chinese Medicine Affiliated to Guangzhou University of Chinese Medicine, Zhongshan, China
| | - Weihong Zheng
- Zhongshan Hospital of Traditional Chinese Medicine, Zhongshan, China
| | - Junyuan He
- Zhongshan Hospital of Traditional Chinese Medicine, Zhongshan, China
| | - Ziguang Wu
- Zhongshan Hospital of Traditional Chinese Medicine Affiliated to Guangzhou University of Chinese Medicine, Zhongshan, China
| | - Jianbang Tang
- Zhongshan Hospital of Traditional Chinese Medicine, Zhongshan, China
- *Correspondence: Jianbang Tang,
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94
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Abstract
Neurocritical care (NCC) is an emerging field within critical care medicine, reflecting the widespread prevalence of neurologic injury in critically ill patients. Morbidity and mortality from neurocritical illness (NCI) have been reduced substantially in resource-rich settings (RRS), owing to the development of advanced technologies, neuro-specific units, and subspecialized medical training. Despite shouldering much of the burden of NCI worldwide, resource-limited settings (RLS) face immense hurdles when implementing guidelines generated in RRS. This review summarizes the current epidemiology, management, and outcomes of the most common NCIs in RLS and offers commentary on future directions in NCC practiced in RLS.
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95
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Margiana R, Markov A, Zekiy AO, Hamza MU, Al-Dabbagh KA, Al-Zubaidi SH, Hameed NM, Ahmad I, Sivaraman R, Kzar HH, Al-Gazally ME, Mustafa YF, Siahmansouri H. Clinical application of mesenchymal stem cell in regenerative medicine: a narrative review. Stem Cell Res Ther 2022; 13:366. [PMID: 35902958 PMCID: PMC9330677 DOI: 10.1186/s13287-022-03054-0] [Citation(s) in RCA: 100] [Impact Index Per Article: 50.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2022] [Accepted: 07/18/2022] [Indexed: 12/16/2022] Open
Abstract
The multipotency property of mesenchymal stem cells (MSCs) has attained worldwide consideration because of their immense potential for immunomodulation and their therapeutic function in tissue regeneration. MSCs can migrate to tissue injury areas to contribute to immune modulation, secrete anti-inflammatory cytokines and hide themselves from the immune system. Certainly, various investigations have revealed anti-inflammatory, anti-aging, reconstruction, and wound healing potentials of MSCs in many in vitro and in vivo models. Moreover, current progresses in the field of MSCs biology have facilitated the progress of particular guidelines and quality control approaches, which eventually lead to clinical application of MSCs. In this literature, we provided a brief overview of immunoregulatory characteristics and immunosuppressive activities of MSCs. In addition, we discussed the enhancement, utilization, and therapeutic responses of MSCs in neural, liver, kidney, bone, heart diseases, and wound healing.
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Affiliation(s)
- Ria Margiana
- Department of Anatomy, Faculty of Medicine, Universitas Indonesia, Jakarta, Indonesia.,Master's Programme Biomedical Sciences, Faculty of Medicine, Universitas Indonesia, Jakarta, Indonesia.,Dr. Soetomo General Academic Hospital, Surabaya, Indonesia
| | - Alexander Markov
- Tyumen State Medical University, Tyumen, Russian Federation.,Tyumen Industrial University, Tyumen, Russian Federation
| | - Angelina O Zekiy
- Department of Prosthetic Dentistry, I.M. Sechenov First Moscow State Medical University (Sechenov University), Moscow, Russia
| | | | | | | | - Noora M Hameed
- Anesthesia Techniques, Al-Nisour University College, Baghdad, Iraq
| | - Irshad Ahmad
- Department of Medical Rehabilitation Sciences, College of Applied Medical Sciences, King Khalid University, Abha, Saudi Arabia
| | - R Sivaraman
- Department of Mathematics, Dwaraka Doss Goverdhan Doss Vaishnav College, Arumbakkam, University of Madras, Chennai, India
| | - Hamzah H Kzar
- Veterinary Medicine College, Al-Qasim Green University, Al-Qasim, Iraq
| | | | - Yasser Fakri Mustafa
- Department of Pharmaceutical Chemistry, College of Pharmacy, University of Mosul, Mosul, 41001, Iraq
| | - Homayoon Siahmansouri
- Department of Immunology, Faculty of Medicine, Tabriz University of Medical Sciences, Tabriz, Iran.
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96
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Gao X, Gong Y, Zhang B, Hao D, He B, Yan L. Factors for Predicting Instant Neurological Recovery of Patients with Motor Complete Traumatic Spinal Cord Injury. J Clin Med 2022; 11:jcm11144086. [PMID: 35887845 PMCID: PMC9319428 DOI: 10.3390/jcm11144086] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2022] [Revised: 06/30/2022] [Accepted: 07/12/2022] [Indexed: 02/04/2023] Open
Abstract
The objective of this study was to analyze the factors affecting the instant recovery of neurological function in patients with motor complete traumatic spinal cord injury (TSCI) treated in hospital. Methods: A retrospective analysis of 1053 patients with TSCI classified according to the American Spinal Cord Injury Association (ASIA) as grades A and B at 59 tertiary hospitals from 1 January 2018 to 31 December 2018 was performed. All patients were classified into motor complete injury (ASIA A or B) and motor incomplete injury (ASIA C or D) groups, according to the ASIA upon discharge. The injury level, fracture segment, fracture type, ASIA score at admission and discharge, treatment protocol, and complications were recorded. Univariate and multivariate analyses were performed to evaluate the relationship between various factors and the recovery of neurological function. Results: The results of multiple logistic regression analysis revealed that the ASIA score on admission (p < 0.001, odds ratio (OR) = 5.722, 95% confidence interval (CI): 4.147−7.895), fracture or dislocation (p = 0.001, OR = 0.523, 95% CI: 0.357−0.767), treatment protocol (p < 0.001; OR = 2.664, 95% CI: 1.689−4.203), and inpatient rehabilitation (p < 0.001, OR = 2.089, 95% CI: 1.501−2.909) were independently associated with the recovery of neurological function. Conclusion: The recovery of neurological function is dependent on the ASIA score on admission, fracture or dislocation, treatment protocol, and inpatient rehabilitation.
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Affiliation(s)
- Xiangcheng Gao
- Department of Spine Surgery, Honghui Hospital, Xi’an Jiaotong University, Xi’an 710054, China; (X.G.); (Y.G.); (B.Z.); (D.H.); (B.H.)
- Medical College, Yan’an University, Yan’an 716000, China
| | - Yining Gong
- Department of Spine Surgery, Honghui Hospital, Xi’an Jiaotong University, Xi’an 710054, China; (X.G.); (Y.G.); (B.Z.); (D.H.); (B.H.)
| | - Bo Zhang
- Department of Spine Surgery, Honghui Hospital, Xi’an Jiaotong University, Xi’an 710054, China; (X.G.); (Y.G.); (B.Z.); (D.H.); (B.H.)
- Medical College, Yan’an University, Yan’an 716000, China
| | - Dingjun Hao
- Department of Spine Surgery, Honghui Hospital, Xi’an Jiaotong University, Xi’an 710054, China; (X.G.); (Y.G.); (B.Z.); (D.H.); (B.H.)
| | - Baorong He
- Department of Spine Surgery, Honghui Hospital, Xi’an Jiaotong University, Xi’an 710054, China; (X.G.); (Y.G.); (B.Z.); (D.H.); (B.H.)
| | - Liang Yan
- Department of Spine Surgery, Honghui Hospital, Xi’an Jiaotong University, Xi’an 710054, China; (X.G.); (Y.G.); (B.Z.); (D.H.); (B.H.)
- Correspondence:
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97
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Gong Y, Du J, Hao D, He B, Cao Y, Gao X, Zhang B, Yan L. A New Scale for Predicting the Risk of In-hospital Mortality in Patients With Traumatic Spinal Cord Injury. Front Neurol 2022; 13:894273. [PMID: 35720092 PMCID: PMC9204840 DOI: 10.3389/fneur.2022.894273] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2022] [Accepted: 05/09/2022] [Indexed: 11/21/2022] Open
Abstract
Purpose To analyze the relative factors influencing in-hospital mortality in patients with traumatic spinal cord injury (TSCI), and develop a score scale for predicting the risk of in-hospital mortality. Method We reviewed the medical records from 59 spine centers in mainland China from 1 January 2018 to 31 December 2018. The inclusion criteria were (1) confirmed diagnosis of TSCI, (2) hospitalization within 7 days of injury, and (3) affecting neurological level from C1 to L1. The exclusion criteria were (1) readmission, and (2) incomplete data. Included patients were classified into the survival and non-survival groups according to their status at discharge. Univariate and multivariate logistic regressions were performed to identify the factors related to in-hospital mortality in patients with TSCI. A new scale was developed, and the mortality rate in each risk group was calculated. Results Of the 3,176 participants, 23 (0.7%) died in the hospital, and most of them died from respiratory diseases (17/23, 73.9%). After univariate and multivariate logistic regression analysis, cervical spinal cord injury [odds ratio (OR) = 0.264, 95% confidence interval (CI): 0.076–0.917, P = 0.036], abdominal visceral injury (OR = 3.778, 95% CI: 1.038–13.755, P = 0.044), the American Spinal Injury Association (ASIA) score on admission (A: reference; B:OR = 0.326, 95% CI: 0.093–1.146, P = 0.081; C:OR = 0.070, 95% CI: 0.016–0.308, P < 0.001; D:OR = 0.069, 95% CI: 0.019–0.246, P < 0.001), and surgery (OR = 0.341, 95% CI: 0.146–0.796, P = 0.013) were significantly associated with in-hospital mortality. Scores for each of the four factors were derived according to mortality rates. The sum of the scores from all four factors was included in the scoring system and represented the risk of in-hospital mortality. The in-hospital mortality risk of the low-risk (0–3 points), moderate-risk (4–5 points), and high-risk groups (6–8 points) was 0.3, 2.7, and 9.7%, respectively (P < 0.001). Conclusions Cervical spinal cord injury, abdominal visceral injury, ASIA score on admission, and surgery were significantly associated with in-hospital mortality in patients with TSCI and stable condition. The scale system may be beneficial for clinical decision-making and for communicating relevant information to patients and their families.
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98
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Yu C, Gui F, Huang Q, Luo Y, Zeng Z, Li R, Guo L. Protective effects of muscone on traumatic spinal cord injury in rats. ANNALS OF TRANSLATIONAL MEDICINE 2022; 10:685. [PMID: 35845509 PMCID: PMC9279775 DOI: 10.21037/atm-22-2672] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/19/2022] [Accepted: 06/20/2022] [Indexed: 01/05/2023]
Abstract
Background Traumatic spinal cord injury (SCI) is a major clinical concern, and it is a life-changing neurological condition with substantial socioeconomic implications. Muscone has been widely used in traditional Chinese medicinal formulations for its anti-inflammatory activity. However, its protective effects on traumatic SCI have not been explored. This study investigated whether muscone plays a protective role in SCI and compared its effects with those of methylprednisolone sodium succinate (MPSS). Methods Rats were divided into five groups: normal saline (NS; n=24), methylprednisolone (MP; w=24), and muscone 1 (MO1), muscone 2 (MO2), and muscone 3 (MO3) (n=24 in each group, collectively called the MOx groups). The SCI rat model was established by the modified Allen's method. The rats were administered muscone (MO1: 2.5 mg/kg, MO2: 5 mg/kg, and MO3: 10 mg/kg) or MP (30 mg/kg), or an equivalent volume of saline. The rats were kept under observation for 4 weeks. Malondialdehyde (MDA), superoxide dismutase (SOD), interleukin-6 (IL-6), interleukin-1β (IL-1β), and tumor necrosis factor-alpha (TNF-α) levels were detected using enzyme-linked immunosorbent assay (ELISA). The expression of glial fibrillary acidic protein (GFAP), B-cell lymphoma-2 (BCL-2), and caspase3 was detected by western blot analysis. Hematoxylin-eosin (HE), Nissl, and immunocytochemistry (ICC) staining was performed for pathological observation. Basso-Beattie-Bresnahan motor function scores were evaluated for assessment of neural functions after acute SCI. Results Muscone inhibited immune-inflammatory reactions, neuronal necrosis, and apoptosis. The lower limb function recovery was better in the MOx groups compared with NS and MP groups according to Basso-Beattie-Bresnahan scores. The changes were remarkable in the MO2 group compared with the other groups. Conclusions Muscone alleviates secondary injury after SCI by reducing immune-inflammatory reactions, neuronal necrosis, and apoptosis.
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Affiliation(s)
- Chao Yu
- Department of Orthopedics, University-Town Hospital of Chongqing Medical University, Chongqing, China
| | - Fei Gui
- Department of Orthopedics, University-Town Hospital of Chongqing Medical University, Chongqing, China
| | - Qian Huang
- Department of Orthopedics, The 1st Affiliated Hospital of Chongqing Medical University, Chongqing, China
| | - Yuanmeng Luo
- Department of Orthopedics, University-Town Hospital of Chongqing Medical University, Chongqing, China
| | - Zili Zeng
- Department of Orthopedics, University-Town Hospital of Chongqing Medical University, Chongqing, China
| | - Ruifu Li
- Department of Orthopedics, University-Town Hospital of Chongqing Medical University, Chongqing, China
| | - Liang Guo
- Department of Orthopedics, University-Town Hospital of Chongqing Medical University, Chongqing, China
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Mainard N, Tsiakaka O, Li S, Denoulet J, Messaoudene K, Vialle R, Feruglio S. Intraoperative Optical Monitoring of Spinal Cord Hemodynamics Using Multiwavelength Imaging System. SENSORS (BASEL, SWITZERLAND) 2022; 22:3840. [PMID: 35632249 PMCID: PMC9146887 DOI: 10.3390/s22103840] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/26/2022] [Revised: 05/13/2022] [Accepted: 05/16/2022] [Indexed: 12/10/2022]
Abstract
The spinal cord is a major structure of the central nervous system allowing, among other things, the transmission of afferent sensory and efferent motor information. During spinal surgery, such as scoliosis correction, this structure can be damaged, resulting in major neurological damage to the patient. To date, there is no direct way to monitor the oxygenation of the spinal cord intraoperatively to reflect its vitality. This is essential information that would allow surgeons to adapt their procedure in case of ischemic suffering of the spinal cord. We report the development of a specific device to monitor the functional status of biological tissues with high resolution. The device, operating with multiple wavelengths, uses Near-InfraRed Spectroscopy (NIRS) in combination with other additional sensors, including ElectroNeuroGraphy (ENG). In this paper, we focused primarily on aspects of the PhotoPlethysmoGram (PPG), emanating from four different light sources to show in real time and record biological signals from the spinal cord in transmission and reflection modes. This multispectral system was successfully tested in in vivo experiments on the spinal cord of a pig for specific medical applications.
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Affiliation(s)
- Nicolas Mainard
- Department of Pediatric Surgery, Jeanne-de-Flandre Hospital, CHU Lille, Avenue Eugène-Avinée, 59000 Lille, France
- Laboratoire D’Informatique de Paris 6 (LIP6), CNRS UMR7606, Sorbonne Université, 4 Place Jussieu, CEDEX 05, 75252 Paris, France; (S.L.); (J.D.); (K.M.); (S.F.)
| | - Olivier Tsiakaka
- CERVO, Biomedical Microsystems Laboratory, Université Laval, Quebec, QC G1V 0A6, Canada;
| | - Songlin Li
- Laboratoire D’Informatique de Paris 6 (LIP6), CNRS UMR7606, Sorbonne Université, 4 Place Jussieu, CEDEX 05, 75252 Paris, France; (S.L.); (J.D.); (K.M.); (S.F.)
| | - Julien Denoulet
- Laboratoire D’Informatique de Paris 6 (LIP6), CNRS UMR7606, Sorbonne Université, 4 Place Jussieu, CEDEX 05, 75252 Paris, France; (S.L.); (J.D.); (K.M.); (S.F.)
| | - Karim Messaoudene
- Laboratoire D’Informatique de Paris 6 (LIP6), CNRS UMR7606, Sorbonne Université, 4 Place Jussieu, CEDEX 05, 75252 Paris, France; (S.L.); (J.D.); (K.M.); (S.F.)
| | - Raphael Vialle
- Clinical Research Group “RIC” Robotics and Surgical Innovations, GRC-33 Sorbonne University, 26 Avenue du Dr. Arnold Netter, 75012 Paris, France;
| | - Sylvain Feruglio
- Laboratoire D’Informatique de Paris 6 (LIP6), CNRS UMR7606, Sorbonne Université, 4 Place Jussieu, CEDEX 05, 75252 Paris, France; (S.L.); (J.D.); (K.M.); (S.F.)
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100
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Mugge L, Dang DD, Dang J, Leiphart J. Acute Spinal Cord Injury Due to Epidural Lipomatosis Without Osseous Injury. Cureus 2022; 14:e25212. [PMID: 35747013 PMCID: PMC9212898 DOI: 10.7759/cureus.25212] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 05/20/2022] [Indexed: 11/17/2022] Open
Abstract
Spinal epidural lipomatosis (SEL) is a common pathology of the lumbar spine. While the natural history is not well understood, there is a strong association with metabolic syndrome and endocrine dysfunction. Clinical presentation typically involves slow, progressive onset of radicular and myelopathic symptoms. Treatment primarily consists of weight loss, while surgery is reserved for refractory cases or acute cauda equina syndrome. We present a case of acute spinal cord injury (SCI) after trauma with underlying SEL in the cervicothoracic spine. Additionally, a literature review using a MEDLINE search of the English literature through April 2020 following the Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) guidelines was performed to identify all documented cases of acute spinal cord injury with underlying SEL. A 72-year-old obese male with insulin-dependent diabetes mellitus presented with subacute bilateral lower extremity weakness after a fall with a flank injury three days prior to evaluation. Within hours of admission, the patient acutely progressed to paraplegia and sensory loss below the T6 level consistent with an ASIA (American Spinal Injury Association) A spinal cord injury. No fracture or dislocation was identified on CT imaging. MRI of the thoracic spine revealed spinal cord compression secondary to extensive posterior epidural lipomatosis with resultant anterior displacement of the thecal sac. The patient underwent emergent T2-T9 laminectomy for decompression. Post-operatively, the patient regained sensation below the level of injury. A review of the literature reviewed no published articles on cases of complete spinal cord injury secondary to underlying SEL without associated fracture. Finally, we present the first report of an acute spinal cord injury in the setting of SEL without fracture. Our case demonstrates that SEL outside the lumbar spine confers increased risk for SCI following trauma. Patients with cervicothoracic SEL may require close neurological observation and timely surgical decompression.
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Affiliation(s)
- Luke Mugge
- Neurological Surgery, Inova Neuroscience and Spine Institute, Falls Church, USA
| | - Danielle D Dang
- Neurological Surgery, Inova Fairfax Medical Campus, Falls Church, USA
| | - John Dang
- Internal Medicine, Walter Reed National Military Medical Center, Bethesda, USA
| | - James Leiphart
- Neurosurgery, Inova Neuroscience Institute, Falls Church, USA
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