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Basic Science/Biology

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The Biomechanical Landscape of Lumbar Disc Herniation: Mechanobiological Insights Into Injury and Regeneration
Neurospine. 2026;23(1):159-175.   Published online January 31, 2026
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The Biomechanical Landscape of Lumbar Disc Herniation: Mechanobiological Insights Into Injury and Regeneration
Neurospine. 2026;23(1):159-175.   Published online January 31, 2026
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Objective
Lumbar disc herniation is among the most common and disabling spinal disorders, driven by the interplay of mechanical overload, structural failure, and cellular dysfunction. Despite advances in surgical interventions, achieving true biological repair of herniated discs remains a major clinical challenge. This review aims to critically examine the biomechanical landscape of disc herniation, focusing on how altered load transmission, tissue stiffness, and structural disruption influence cellular behavior and tissue regeneration. It further explores mechanobiological mechanisms governing repair and highlights emerging biomimetic models and technologies that integrate mechanical and biological insights to promote functional disc restoration.
Methods
A comprehensive literature review was conducted using the Web of Science Core Collection, PubMed (National Library of Medicine), and ScienceDirect databases. The search was limited to peer-reviewed journal articles published in English and focused on studies related to lumbar disc herniation.
Results
While decades of research have elucidated the biomechanical factors contributing to disc herniation, recent advances in mechanobiology have uncovered how mechanical cues influence cellular behavior, tissue repair, and degeneration. Evidence suggests that true disc regeneration cannot be achieved through biological replacement or mechanical stabilization alone; rather, it requires restoring functional biomechanics, specifically, the disc’s ability to sense, adapt to, and sustain physiological loading.
Conclusion
Viewing disc herniation through a mechanobiological lens offers new opportunities to develop targeted therapies aimed at restoring both tissue integrity and load-bearing functionality, paving the way for more effective regenerative interventions.

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  • Integrating Structures and Biology: Cellular and Molecular Interactions with Functionally Graded Spinal Cage Designs
    Yuen Ho Cheng, Amy Libing Fu, Jessica Gaff, Gianluca Vadala, Amit Jain, Javad Tavakoli
    International Journal of Molecular Sciences.2026; 27(10): 4531.     CrossRef
  • 2,723 View
  • 100 Download
  • 1 Web of Science
  • 1 Crossref

Systematic Review

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Mesenchymal Stromal Cells for the Treatment of Discogenic Low Back Pain: A Systematic Review of Clinical Studies
Neurospine. 2025;22(4):998-1011.   Published online December 31, 2025
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Mesenchymal Stromal Cells for the Treatment of Discogenic Low Back Pain: A Systematic Review of Clinical Studies
Neurospine. 2025;22(4):998-1011.   Published online December 31, 2025
Close
This study aimed to elucidate the efficacy and safety of mesenchymal stromal cell (MSC) therapy for chronic discogenic low back pain (LBP). A systematic literature search was conducted on PubMed/Medline, Scopus, Cochrane, and ClinicalTrials.gov following PRISMA (Preferred Reporting Items for Systematic Reviews and Meta-analysis) guidelines. Eligible studies included published and ongoing clinical trials assessing intradiscal MSC injections in patients with chronic discogenic LBP unresponsive to conservative treatment. Risk-of-bias (RoB) assessment was performed through MINORS (Methodological Index for Non-randomized Studies) and RoB 2 tools. Within- and between-group differences were expressed as means and 95% confidence intervals. Effect sizes were calculated through Cohen d and g. Data from 10 published clinical studies (n=736; 470 in treatment and 266 in control groups) revealed a mean age of 41.5 years and an average follow-up of 21.6 (range, 6–72) months. Various MSC sources were employed, including autologous and allogeneic bone marrow-derived MSCs and adipose-derived MSCs, with doses ranging from 6×10⁶ to over 50×10⁶ cells/disc. Visual analogue scale, Oswestry Disability Index, and quality-of-life questionnaires indicated modest improvements in pain, disability, and functional status. Additionally, magnetic resonance imaging assessments occasionally demonstrated increased disc hydration and stabilization or improvement of Pfirrmann grade. Data from 8 ongoing trials (n=498 participants; 276 treatment, 222 control) with follow-up periods ranging 6–24 months further corroborate the feasibility and safety of MSC-based interventions. MSC therapy is a biologically-driven approach for managing chronic discogenic LBP. While preliminary data support its potential to alleviate pain and improve disc integrity, further high-quality, standardized trials are necessary to optimize treatment protocols and confirm long-term clinical benefits.

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  • Pathophysiology, diagnosis, and management of discogenic low back pain: a phenotype-driven precision framework for surgical and interventional decision-making
    Yanxu Feng, Yahao Li, Zhongqiu Sa, Zhilin Bai, Feng Mao, Jiangfeng Yu
    Frontiers in Surgery.2026;[Epub]     CrossRef
  • 2,031 View
  • 63 Download
  • 1 Crossref

Original Articles

Basic Science

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Transcranial Optogenetic Stimulation Promotes Corticospinal Tract Axon Regeneration to Repair Spinal Cord Injury by Activating the JAK2/STAT3 Pathway
Neurospine. 2025;22(2):311-328.   Published online June 30, 2025
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Transcranial Optogenetic Stimulation Promotes Corticospinal Tract Axon Regeneration to Repair Spinal Cord Injury by Activating the JAK2/STAT3 Pathway
Neurospine. 2025;22(2):311-328.   Published online June 30, 2025
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Objective
Regeneration of corticospinal tract (CST) axons after spinal cord injury (SCI) is a key element in rebuilding neuronal connections to restore voluntary motor function. However, it remains challenging owing to limited effective interventions. This study adopted a modified transcranial optogenetic technique to stimulate CST axon regeneration into the injury site of completely transected SCI and explore the underlying molecular mechanisms.
Methods
A novel optogenetic light emitting diode (LED) device was used to stimulate the brain motor cortex in channelrhodopsin-2–yellow fluorescent protein (ChR2-YFP) transgenic mice to observe the regeneration of CST axons in the injury site of a complete SCI. The LED device was also used In vitro to stimulate the motor cortex slices of the transgenic mouse brain for observing the outgrowth of their neurites.
Results
After transcranial optogenetic stimulation, the pyramidal neurons of bilateral cerebral motor cortices, in ChR2-YFP transgenic mice were activated, CST axons regenerated into the injury site of the spinal cord, and the motor function of the paralyzed hindlimbs improved. Proteomic analysis revealed that CST axon regeneration was associated with the activation of the Janus kinase 2/signal transducer and activator of transcription 3 (JAK2/STAT3) pathway in the cerebral motor cortices. In vitro LED blue light illumination enhanced the outgrowth of neurites from the brain slices of transgenic mice. Treatment with a JAK2/STAT3 inhibitor led to a significant attenuation of neurite outgrowth.
Conclusion
The modified transcranial optogenetic technique stimulated bilateral motor cortices, in the brains of ChR2-YFP transgenic mice. It increased the excitability of pyramidal neurons in the motor cortices, and promoted CST axon regeneration by activating the JAK2/STAT3 pathway, repairing complete SCI.

Citations

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  • Frontier Integration in Spinal Cord Injury Repair: Engineering-Driven Mechanistic Exploration and a New Paradigm for Clinical Translation
    Mi Zhou, Xue Yao, Boya Huang, Jie Ren, Haiwen Feng, Shiqing Feng
    Engineering.2026; 60: 310.     CrossRef
  • Multimodal electroconductive PLGA-based scaffold orchestrates neuroprotection and regeneration following severe spinal cord injury
    So-Yeon Park, Gyubin Kim, Yanting Liu, Ji-Won Jung, Jeoung Eun Lee, Jun-Kyu Lee, Dong-Hee Kim, Juwon Youn, Seung-Woon Baek, Dong Ryul Lee, Dong-Youn Hwang, Tae-Keun Ahn, Da-Seul Kim, Inbo Han, Dong Keun Han
    Journal of Nanobiotechnology.2026;[Epub]     CrossRef
  • Extracellular Vesicle-Based Biomarkers in Spinal Cord Injury: A State-of-the-Art Review on Diagnostic and Prognostic Advances
    Trung Nhan Vo, Hae Eun Shin, Yeji Kim, Inbo Han
    International Journal of Molecular Sciences.2026; 27(4): 2079.     CrossRef
  • NanoScript-Enabled Nonviral Transient Repression of Phosphatase and Tensin Homolog for Axonal Regeneration and Central Nervous System Injury Repair
    Brandon Conklin, Yanting Liu, Sarah Nevins, Byeong-Gwan Song, Sy-Tsong Dean Chueng, Qiu Xiaowen, Sungyun Kim, Heyin Cheung, Seong Bae An, JongMin Lee, Bong Geun Chung, Wise Young, Dongming Sun, Hiroshi Sugiyama, Inbo Han, Ki-Bum Lee
    ACS Nano.2026; 20(8): 6582.     CrossRef
  • 3D bioprinted multifunctional GelMA/TMP scaffold integrated with neural stem cell-derived extracellular vesicles and neural progenitor cells for spinal cord injury repair
    Yanting Liu, Gyubin Kim, Jun Yong Kim, Jeong Min Park, Duck Hyun Song, Jun-Kyu Lee, So-Yeon Park, Inbo Han, Dong Keun Han
    Journal of Tissue Engineering.2026;[Epub]     CrossRef
  • Spinal cord extracellular matrix hydrogel enhances organoid maturation and functional regeneration after spinal cord injury
    Junghoon Kim, Songzi Zhang, Joon-Hyuk Jung, Mi-Jeong Lee, Inbo Han, Seung-Woo Cho
    Materials Today Bio.2026; 38: 103168.     CrossRef
  • Injectable Poloxamer and Hyaluronic Acid Hydrogel for Sustained Co-Delivery of Dexamethasone and Lidocaine Ameliorates Neuropathic Pain
    Yanting Liu, Seungwoon Baik, Trung Nhan Vo, Songzi Zhang, Boram Kim, Tae-Keun Ahn, Inbo Han, Dong Keun Han
    Biomaterials Research.2026;[Epub]     CrossRef
  • A Commentary on “Transcranial Optogenetic Stimulation Promotes Corticospinal Tract Axon Regeneration to Repair Spinal Cord Injury by Activating the JAK2/STAT3 Pathway”
    Wu Xue, Anyuan Dai, Qinyi Liu
    Neurospine.2025; 22(2): 329.     CrossRef
  • From the Editor-in-Chief: Featured Articles in the June 2025 Issue
    Inbo Han
    Neurospine.2025; 22(2): 309.     CrossRef
  • Potential Pharmacologic Treatments in Spinal Cord Injury: A Narrative Review
    Kyeong Deuk An, Chan Yang Noh, Junsoo Jang, Woon Tak Yuh, Il Choi
    Korean Journal of Neurotrauma.2025; 21(4): 237.     CrossRef
  • 9,312 View
  • 180 Download
  • 9 Web of Science
  • 10 Crossref

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Mesenchymal Stem Cells Combined With Electroacupuncture Treatment Regulate the Subpopulation of Macrophages and Astrocytes to Facilitate Axonal Regeneration in Transected Spinal Cord
Neurospine. 2023;20(4):1358-1379.   Published online December 31, 2023
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Mesenchymal Stem Cells Combined With Electroacupuncture Treatment Regulate the Subpopulation of Macrophages and Astrocytes to Facilitate Axonal Regeneration in Transected Spinal Cord
Neurospine. 2023;20(4):1358-1379.   Published online December 31, 2023
Close
Objective
Herein, we investigated whether mesenchymal stem cells (MSCs) transplantation combined with electroacupuncture (EA) treatment could decrease the proportion of proinflammatory microglia/macrophages and neurotoxic A1 reactive astrocytes and inhibit glial scar formation to enhance axonal regeneration after spinal cord injury (SCI).
Methods
Adult rats were divided into 5 groups after complete transection of the spinal cord at the T10 level: a control group, a nonacupoint EA (NA-EA) group, an EA group, an MSC group, and an MSCs+EA group. Immunofluorescence labeling, quantitative real-time polymerase chain reaction, enzyme-linked immunosorbent assay, and Western blots were performed.
Results
The results showed that MSCs+EA treatment reduced the proportion of proinflammatory M1 subtype microglia/macrophages, but increased the differentiation of anti-inflammatory M2 phenotype cells, thereby suppressing the mRNA and protein expression of proinflammatory cytokines (tumor necrosis factor-α and IL-1β) and increasing the expression of an anti-inflammatory cytokine (interleukin [IL]-10) on days 7 and 14 after SCI. The changes in expression correlated with the attenuated neurotoxic A1 reactive astrocytes and glial scar, which in turn facilitated the axonal regeneration of the injured spinal cord. In vitro, the proinflammatory cytokines increased the level of proliferation of astrocytes and increased the expression levels of C3, glial fibrillary acidic protein, and chondroitin sulfate proteoglycan. These effects were blocked by administering inhibitors of ErbB1 and signal transducer and activator of transcription 3 (STAT3) (AG1478 and AG490) and IL-10.
Conclusion
These findings showed that MSCs+EA treatment synergistically regulated the microglia/macrophage subpopulation to reduce inflammation, the formation of neurotoxic A1 astrocytes, and glial scars. This was achieved by downregulating the ErbB1-STAT3 signal pathway, thereby providing a favorable microenvironment conducive to axonal regeneration after SCI.

Citations

Citations to this article as recorded by  Crossref logo
  • The role of autophagy in spinal cord injury: Mechanisms, crosstalk, and therapeutic strategies
    Rui Wang, Zhen Niu, Runze Tian, Aini Chen, Huangmei Liao, Rui Kuang, Ying Feng, Guangyu Chin, Jiesheng Xie, Ping Zhu, Chi Teng Vong, Ge Li
    Neural Regeneration Research.2026; 21(6): 2110.     CrossRef
  • Mesenchymal stem cells transplantation as a replacement stem cell for the treatment of neuropathic pain
    Wen-Jun Zhang, Xin Zhang, Ji-Peng Liu, Yong-Sheng Xu, Jun-Xiang Liao, Bing Zou, Liu-Xiang Fu
    International Journal of Surgery.2026; 112(3): 7906.     CrossRef
  • Glial cell: Role of the pain modulation in acupuncture analgesia
    Mi YUAN, Lan YUAN, Wei CHEN, Yang-shuai SU, Meng-yan FAN, Xiang-hong JING, Wei HE, Xiao-yu WANG
    World Journal of Acupuncture - Moxibustion.2025; 35(2): 103.     CrossRef
  • Biomaterials and cell-based therapy post spinal cord injury
    Sara Haratizadeh, Haitao Liu, Hengde Li, Mohsen Adeli, Angelo H. All
    Journal of Translational Medicine.2025;[Epub]     CrossRef
  • Integrated single-cell and bulk RNA sequencing reveals the mechanisms of electroacupuncture in suppressing ferroptosis after spinal cord injury
    Jieqi Zhang, Yi Huang, Xihan Ying, Ruoqi Wang, Kai Zhang, Lei Wu, Dexiong Han, Ruijie Ma, Kelin He
    Clinical Traditional Medicine and Pharmacology.2025; 6(3): 200230.     CrossRef
  • Therapeutic Transplantation of Human Central Nervous System Organoids for Neural Reconstruction
    Sung Jun Hong, Minsung Bock, Songzi Zhang, Seong Bae An, Inbo Han
    International Journal of Molecular Sciences.2024; 25(15): 8540.     CrossRef
  • 6,607 View
  • 184 Download
  • 4 Web of Science
  • 6 Crossref

Review Articles

Regular Issue

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Therapeutic Approaches Targeting Vascular Repair After Experimental Spinal Cord Injury: A Systematic Review of the Literature
Neurospine. 2022;19(4):961-975.   Published online December 31, 2022
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Therapeutic Approaches Targeting Vascular Repair After Experimental Spinal Cord Injury: A Systematic Review of the Literature
Neurospine. 2022;19(4):961-975.   Published online December 31, 2022
Close
Traumatic spinal cord injury (SCI) disrupts the spinal cord vasculature resulting in ischemia, amplification of the secondary injury cascade and exacerbation of neural tissue loss. Restoring functional integrity of the microvasculature to prevent neural loss and to promote neural repair is an important challenge and opportunity in SCI research. Herein, we summarize the course of vascular injury and repair following SCI and give a comprehensive overview of current experimental therapeutic approaches targeting spinal cord microvasculature to diminish ischemia and thereby facilitate neural repair and regeneration. A systematic review of the published literature on therapeutic approaches to promote vascular repair after experimental SCI was performed using PRISMA (Preferred Reporting Items for Systematic Reviews and Meta-Analyses) standards. The MEDLINE databases PubMed, Embase, and OVID MEDLINE were searched using the keywords “spinal cord injury,” “angiogenesis,” “angiogenesis inducing agents,” “tissue engineering,” and “rodent subjects.” A total of 111 studies were identified through the search. Five main therapeutic approaches to diminish hypoxia-ischemia and promote vascular repair were identified as (1) the application of angiogenic factors, (2) genetic engineering, (3) physical stimulation, (4) cell transplantation, and (5) biomaterials carrying various factor delivery. There are different therapeutic approaches with the potential to diminish hypoxia-ischemia and promote vascular repair after experimental SCI. Of note, combinatorial approaches using implanted biomaterials and angiogenic factor delivery appear promising for clinical translation.

Citations

Citations to this article as recorded by  Crossref logo
  • Synergistic aligned neuronal and vascular growth inside 3D-PEG-Anisogels utilizing a triple-co-culture
    Céline Bastard, Philip Pietryszek, Hela Uplegger, Matthias Mork, Jose Luis Gerardo Nava, Tamás Haraszti, Laura De Laporte
    Materials Today Bio.2026; 36: 102737.     CrossRef
  • Optimizing deferoxamine delivery through the skin for pressure ulcers
    Katharina S. Berryman, Maria Gracia Mora Pinos, Amy Skarsfeldt, Lulejeta Latifi, Pedro Mora Pinos, Kellen Chen, Geoffrey C. Gurtner
    Expert Opinion on Drug Delivery.2026; 23(4): 621.     CrossRef
  • Spatiotemporal PET imaging of P2X7R-driven neuroinflammation using [18F]GSK1482160 after experimental acute spinal cord injury in mice
    Jiaxing Shi, Kun Wang, Yuyi Hou, Sirui Wu, Yifan Qiu, Xiang Liu, Lihua Huang, Shiyanjin Zhang, Hongjun Jin, Hai Lu
    Brain, Behavior, and Immunity.2026; 134: 106279.     CrossRef
  • Sustained nitric oxide production by engineered E. coli remodels the tumor microenvironment and potentiates immunotherapy
    Shuyu Xu, Tianjiao Zhang, Yang Song, Mengxin Wang, Ruiqi Wu, Mofan Li, Haonan Wang, Xinxin Xie, Qingfeng Chen, Xiaotu Ma, Xiaolong Liang
    Nature Biotechnology.2026;[Epub]     CrossRef
  • Spinal Cord Blood Perfusion Deficit is Associated with Clinical Impairment after Spinal Cord Injury
    Anna Lebret, Sabina Frese, Simon Lévy, Armin Curt, Virginie Callot, Patrick Freund, Maryam Seif
    Journal of Neurotrauma.2025; 42(3-4): 280.     CrossRef
  • Identification of a Therapeutic Window for Neurovascular Unit Repair after Experimental Spinal Cord Injury
    Vanessa Hubertus, Lea Meyer, Lilly Waldmann, Laurens Roolfs, Nima Taheri, Katharina Kersting, Emily von Bronewski, Melina Nieminen-Kelhä, Irina Kremenetskaia, Christian Uhl, Kim C. Fiedler, Jan-Erik Ode, Andre Rex, Harald Prüß, Asylkhan Rakhymzhan, Anja E
    Journal of Neurotrauma.2025; 42(3-4): 212.     CrossRef
  • Analysis of the spatiotemporal dynamics of vascular injury and regeneration following experimental Spinal Cord Injury
    Christian J. Entenmann, Emily J. von Bronewski, Lilly Waldmann, Lea Meyer, Katharina Kersting, Laurens T. Roolfs, Lasse M. Schleker, Melina Nieminen-Kelhä, Irina Kremenetskaia, Frank L. Heppner, Michael G. Fehlings, Peter Vajkoczy, Vanessa Hubertus
    Brain and Spine.2025; 5: 104191.     CrossRef
  • AO Spine Clinical Practice Recommendations for the Surgical Management of Acute Traumatic Spinal Cord Injury: Contemporary Concepts
    Vanessa Hubertus, Jetan H. Badhiwala, Nader Hejrati, Aria Nouri, Paula V. Ter Wengel, Farzin Farahbakhsh, Christoph Hofstetter, Chris J. Neal, Mario Ganau, Nitin Agarwal, Paul Arnold, Paul Koljonen, James Harrop, Bizhan Aarabi, James Guest, Ricardo Rodrig
    Global Spine Journal.2025; 15(8): 3572.     CrossRef
  • Quercetin promotes angiogenesis and protects the blood-spinal cord barrier structure after spinal cord injury by targeting the PI3K/Akt signaling pathway
    Xinfang Liu, Xuhua Liu, Sidong Luo, Di Chen, Jinbo Lin, Man Xiong, Lei Yang, Kaifan Li, Dawei Sun, Lina Wei, Sheng Luo, Yeyang Wang
    Journal of Translational Medicine.2025;[Epub]     CrossRef
  • Stem cell therapy for locomotion recovery and neuropathic pain alleviation in spinal cord injury: an umbrella review and meta-analysis
    Amir Azimi, Amirmohammad Toloui, Mohammadhossein Mozafarybazargany, Mohammad Kiah, Hamed Zarei, Parsa Paridari, Sajjad Jabermoradi, Donya Pourkand, Hamzah Adel Ramawad, Alexander R. Vaccaro, Mostafa Hosseini, Mahmoud Yousefifard, Vafa Rahimi-Movaghar
    Spinal Cord.2025; 63(8): 393.     CrossRef
  • Peptide-conjugated aligned silk fiber simultaneously promotes angiogenesis and neurogenesis for spinal cord injury therapy
    Ke Jian, Chaoyong He, Ziqiang Wang, Yajun Li, Can Zhang, Liyang Shi, Jianwu Dai
    Chemical Engineering Journal.2025; 523: 168679.     CrossRef
  • Neurovascular dynamics in the spinal cord from development to pathophysiology
    Carmen Ruiz de Almodovar, Sebastian Dupraz, Dario Bonanomi
    Neuron.2025; 113(24): 4134.     CrossRef
  • Endothelial ephrin-B2 knockdown increases post-traumatic disruption of the blood-spinal cord barrier following spinal cord injury
    Katharina Kersting, Emily J. von Bronewski, Laurens T. Roolfs, Lea Meyer, Lilly Waldmann, Melina Nieminen-Kelhä, Irina Kremenetskaia, Anja Nitzsche, Andre Rex, Harald Prüß, Ralf Adams, Frank L. Heppner, Michael G. Fehlings, Peter Vajkoczy, Vanessa Hubertu
    Neurobiology of Disease.2025; 217: 107168.     CrossRef
  • A Comprehensive Overview of Spinal Cord Injury (SCI) Experimental Models
    Modinat Olushanu
    Premier Journal of Neuroscience.2025;[Epub]     CrossRef
  • Circulating beta-2-microglobulin promotes revascularization via TGFBR2 after spinal cord injury
    Hiroshi Yamagishi, Akiko Uyeda, Lili Quan, Hidemi Misawa, Rieko Muramatsu
    npj Regenerative Medicine.2025;[Epub]     CrossRef
  • AAV-mediated VEGFA overexpression promotes angiogenesis and recovery of locomotor function following spinal cord injury via PI3K/Akt signaling
    Xin Miao, Junqing Lin, Ang Li, Tao Gao, Tiexin Liu, Junjie Shen, Yi Sun, Jiabao Wei, Bingbo Bao, Xianyou Zheng
    Experimental Neurology.2024; 375: 114739.     CrossRef
  • AO Spine/Praxis Clinical Practice Guidelines for the Management of Acute Spinal Cord Injury: An Introduction to a Focus Issue
    Brian K. Kwon, Lindsay A. Tetreault, Nathan Evaniew, Andrea C. Skelly, Michael G. Fehlings
    Global Spine Journal.2024; 14(3_suppl): 5S.     CrossRef
  • Intranasal delivery of small extracellular vesicles from specific subpopulation of mesenchymal stem cells mitigates traumatic spinal cord injury
    Yi Sun, Jinyun Zhao, Quanbo Liu, Yan Xu, Yiming Qin, Rundong He, Lifu Zheng, Yong Xie, Chengjun Li, Tianding Wu, Yong Cao, Chunyue Duan, Hongbin Lu, Jianzhong Hu
    Journal of Controlled Release.2024; 369: 335.     CrossRef
  • Spinal Cord Injury Management Based on Microglia-Targeting Therapies
    Thomas Gabriel Schreiner, Oliver Daniel Schreiner, Romeo Cristian Ciobanu
    Journal of Clinical Medicine.2024; 13(10): 2773.     CrossRef
  • Stem Cell and Regenerative Therapies for the Treatment of Osteoporotic Vertebral Compression Fractures
    Songzi Zhang, Yunhwan Lee, Yanting Liu, Yerin Yu, Inbo Han
    International Journal of Molecular Sciences.2024; 25(9): 4979.     CrossRef
  • Therapeutic Transplantation of Human Central Nervous System Organoids for Neural Reconstruction
    Sung Jun Hong, Minsung Bock, Songzi Zhang, Seong Bae An, Inbo Han
    International Journal of Molecular Sciences.2024; 25(15): 8540.     CrossRef
  • Innovative Strategies in 3D Bioprinting for Spinal Cord Injury Repair
    Daniel Youngsuk Kim, Yanting Liu, Gyubin Kim, Seong Bae An, Inbo Han
    International Journal of Molecular Sciences.2024; 25(17): 9592.     CrossRef
  • p53/HIF-1α regulates neuronal aging and autophagy in spinal cord ischemia/reperfusion injury
    Xingzhen Liu, Jia Wang, Kangping Shen, Wenjie Jin
    Mechanisms of Ageing and Development.2024; 222: 112000.     CrossRef
  • Co-Administration of Resolvin D1 and Peripheral Nerve-Derived Stem Cell Spheroids as a Therapeutic Strategy in a Rat Model of Spinal Cord Injury
    Seung-Young Jeong, Hye-Lan Lee, SungWon Wee, HyeYeong Lee, GwangYong Hwang, SaeYeon Hwang, SolLip Yoon, Young-Il Yang, Inbo Han, Keung-Nyun Kim
    International Journal of Molecular Sciences.2023; 24(13): 10971.     CrossRef
  • Targeted Delivery of RGD-CD146+CD271+ Human Umbilical Cord Mesenchymal Stem Cell-Derived Exosomes Promotes Blood–Spinal Cord Barrier Repair after Spinal Cord Injury
    Yong Xie, Yi Sun, Yudong Liu, Jinyun Zhao, Quanbo Liu, Jiaqi Xu, Yiming Qin, Rundong He, Feifei Yuan, Tianding Wu, Chunyue Duan, Liyuan Jiang, Hongbin Lu, Jianzhong Hu
    ACS Nano.2023; 17(18): 18008.     CrossRef
  • The Importance of Vascular Repair as the First Step in Spinal Cord Injury Treatment: Commentary on “Therapeutic Approaches Targeting Vascular Repair After Experimental Spinal Cord Injury: A Systematic Review of the Literature”
    Kyoung-Tae Kim
    Neurospine.2022; 19(4): 976.     CrossRef
  • 10,035 View
  • 226 Download
  • 27 Web of Science
  • 26 Crossref

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The Role of Alginate Hydrogels as a Potential Treatment Modality for Spinal Cord Injury: A Comprehensive Review of the Literature
Neurospine. 2022;19(2):272-280.   Published online June 30, 2022
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The Role of Alginate Hydrogels as a Potential Treatment Modality for Spinal Cord Injury: A Comprehensive Review of the Literature
Neurospine. 2022;19(2):272-280.   Published online June 30, 2022
Close
Objective
To comprehensively characterize the utilization of alginate hydrogels as an alternative treatment modality for spinal cord injury (SCI).
Methods
An extensive review of the published literature on studies using alginate hydrogels to treat SCI was performed. The review of the literature was performed using electronic databases such as PubMed, EMBASE, and OVID MEDLINE electronic databases. The keywords used were “alginate,” “spinal cord injury,” “biomaterial,” and “hydrogel.”
Results
In the literature, we identified a total of 555 rat models that were treated with alginate scaffolds for regenerative biomarkers. Alginate hydrogels were found to be efficient and promising substrates for tissue engineering, drug delivery, neural regeneration, and cellbased therapies for SCI repair. With its ability to act as a pro-regenerative and antidegenerative agent, the alginate hydrogel has the potential to improve clinical outcomes.
Conclusion
The emerging developments of alginate hydrogels as treatment modalities may support current and future tissue regenerative strategies for SCI.

Citations

Citations to this article as recorded by  Crossref logo
  • Smart alginate-based biomaterials for neurodegenerative disease therapy: Innovations in delivery, regeneration, and clinical translation
    Mostafa M. El-Sheekh, Nada E. Ramadan, Farah M. Elshikh, Fatma R.Youssef, Jehan W. Salem, Mona T. Sharaf, Slwan H. Elmor, Sameh Samir Ali
    International Journal of Biological Macromolecules.2026; 348: 150688.     CrossRef
  • Controlled Antibiotic Release From Emulsion‐Loaded Alginate and Fibrin Hydrogels Using Ultrasound
    Ziba Ghareh Nazi Fam, Asia Winslow, Mario L. Fabiilli, Sam Varghese, Brian E. Oeffinger, Flemming Forsberg, Noreen J. Hickok, Lauren J. Delaney
    Journal of Biomedical Materials Research Part A.2026;[Epub]     CrossRef
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Pharmacologic and Regenerative Cell Therapy for Spinal Cord Injury: WFNS Spine Committee Recommendations
Neurospine. 2020;17(4):785-796.   Published online December 31, 2020
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Pharmacologic and Regenerative Cell Therapy for Spinal Cord Injury: WFNS Spine Committee Recommendations
Neurospine. 2020;17(4):785-796.   Published online December 31, 2020
Close
This is a review article examining the pharmacologic and regenerative cell therapy for spinal cord injury. A literature search during last 10 years were conducted using key words. Case reports, experimental (nonhuman) studies, papers other than English language were excluded. Up-to-date information on the pharmacologic and regenerative cell therapy for spinal cord injury was reviewed and statements were produced to reach a consensus in 2 separate consensus meeting of WFNS Spine Committee. The statements were voted and reached a consensus using Delphi method. Pharmacologic and regenerative cell therapy for spinal cord injury have long been an interest of many experimental and clinical researches. Clinical studies with methylpredinisolone have not shown clear cut benefit. Other drugs such as Rho inhibitor, minocycline, riluzole, granulocyte colony-stimulating factor have also been tried without significant benefits. Regenerative cell therapy using different types of stem cells, different inoculation techniques, and scaffolds have undergone many trials highlighting the efficacies of cells and their limitations. This review article summarizes the current knowledge on pharmacologic and regenerative cell therapy for spinal cord injury. Unfortunately, there is a need for further experimental and human trials to recommend effective pharmacologic and regenerative cell therapy.

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Gene Therapy Approach for Intervertebral Disc Degeneration: An Update
Neurospine. 2020;17(1):3-14.   Published online March 31, 2020
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Gene Therapy Approach for Intervertebral Disc Degeneration: An Update
Neurospine. 2020;17(1):3-14.   Published online March 31, 2020
Close
Intervertebral disc degeneration is the primary cause of back pain and associated with neurological disorders including radiculopathy, myelopathy, and paralysis. The currently available surgical treatments predominantly include the excision of pathological discs, resulting in the function loss, immobilization, and potential additional complications due to the altered biomechanics. Gene therapy approach involves gene transfer into cells, affects RNA and protein synthesis of the encoded genes in the recipient cells, and facilitates biological treatment. Relatively long-exerting therapeutic effects by gene therapy are potentially advantageous to treat slow progressive degenerative disc disease. In gene therapy, the delivery method and selection of target gene(s) are essential. Although gene therapy was first mediated by viral vectors, technological progress has enabled to apply nonviral vectors and polyplex micelles for the disc. While RNA interference successfully provides specific downregulation of multiple genes in the disc, clustered regularly interspaced short palindromic repeats (CRISPR) system has increased attention to alter the process of intervertebral disc degeneration. Then, more recent findings of our studies have suggested autophagy, the intracellular self-digestion, and recycling system under the negative regulation by the mammalian target of rapamycin (mTOR), as a gene therapy target in the disc. Here we briefly review backgrounds and applications of gene therapy for the disc, introducing strategies of autophagy and mTOR signaling modulation through selective RNA interference.

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Wnt3a and wnt5a as Potential Chondrogenic Stimulators for Nucleus Pulposus Cell Induction: A Comprehensive Review
Neurospine. 2020;17(1):19-35.   Published online March 31, 2020
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Wnt3a and wnt5a as Potential Chondrogenic Stimulators for Nucleus Pulposus Cell Induction: A Comprehensive Review
Neurospine. 2020;17(1):19-35.   Published online March 31, 2020
Close
Low back pain remains a highly prevalent pathology engendering a tremendous socioeconomic burden. Low back pain is generally associated with intervertebral disc (IVD) degeneration, a process involving the deterioration of nucleus pulpous (NP) cells and IVD matrix. Scientific interest has directed efforts to restoring cell numbers as a strategy to enable IVD regeneration. Currently, mesenchymal stromal cells (MSCs) are being explored as cell therapy agents, due to their easy accessibility and differentiation potential. For enhancement of MSCs, growth factor supplementation is commonly applied to induce differentiation towards a chondrogenic (NP) cell phenotype. The wnt signaling pathways play a crucial role in chondrogenesis, nonetheless, literature appears to present controversies with regard to wnt3a and wnt5a for the induction of NP cells, chondrocytes, and MSCs. This review aims to summarize the reporting on wnt3a/wnt5a mediated NP cell differentiation, and to elucidate the mechanisms involved in wnt3a and wnt5a mediated chondrogenesis for potential application as cell therapy supplements for IVD regeneration. Our review suggests that wnt3a, subsequently replaced with a chondrogenic stimulating growth factor, can enhance the chondrogenic potential of MSCs in vitro. Contrariwise, wnt5a is suggested to play a role in maintaining cell potency of differentiated NP or chondrogenic cells.

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Acidic Fibroblast Growth Factor in Spinal Cord Injury
Neurospine. 2019;16(4):728-738.   Published online January 15, 2019
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Acidic Fibroblast Growth Factor in Spinal Cord Injury
Neurospine. 2019;16(4):728-738.   Published online January 15, 2019
Close
Spinal cord injury (SCI), with an incidence rate of 246 per million person-years among adults in Taiwan, remains a devastating disease in the modern day. Elderly men with lower socioeconomic status have an even higher risk for SCI. Despite advances made in medicine and technology to date, there are few effective treatments for SCI due to limitations in the regenerative capacity of the adult central nervous system. Experiments and clinical trials have explored neuro-regeneration in human SCI, encompassing cell- and molecule-based therapies. Furthermore, strategies have aimed at restoring connections, including autologous peripheral nerve grafts and biomaterial scaffolds that theoretically promote axonal growth. Most molecule-based therapies target the modulation of inhibitory molecules to promote axonal growth, degrade glial scarring obstacles, and stimulate intrinsic regenerative capacity. Among them, acidic fibroblast growth factor (aFGF) has been investigated for nerve repair; it is mitogenic and pluripotent in nature and could enhance axonal growth and mitigate glial scarring. For more than 2 decades, the authors have conducted multiple trials, including human and animal experiments, using aFGF to repair nerve injuries, including central and peripheral nerves. In these trials, aFGF has shown promise for neural regeneration, and in the future, more trials and applications should investigate aFGF as a neurotrophic factor. Focusing on aFGF, the current review aimed to summarize the historical evolution of the utilization of aFGF in SCI and nerve injuries, to present applications and trials, to summarize briefly its possible mechanisms, and to provide future perspectives.

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