scholarly journals The cell repair research of spinal cord injury: a review of cell transplantation to treat spinal cord injury

2019 ◽  
Vol 7 (2) ◽  
pp. 55-62 ◽  
Author(s):  
Zhenrong Zhang ◽  
Fangyong Wang ◽  
Mingjie Song
Keyword(s):  
Spinal Cord ◽  
Stem Cells ◽  
Spinal Cord Injury ◽  
Cell Transplantation ◽  
Embryonic Stem ◽  
Comprehensive Treatment ◽  
Multipotent Stem Cells ◽  
Cell Repair ◽  
Advantages And Disadvantages ◽  
Cord Injury

Through retrospective analysis of the literature on the cell repair of spinal cord injury worldwide, it is found that the mechanism of cell transplantation repairing spinal cord injury is mainly to replace damaged neurons, protect host neurons, prevent apoptosis, promote axonal regeneration and synapse formation, promote myelination, and secrete trophic factors or growth factors to improve microenvironment. A variety of cells are used to repair spinal cord injury. Stem cells include multipotent stem cells, embryonic stem cells, and induced pluripotent stem cells. The multipotent stem cells are mainly various types of mesenchymal stem cells and neural stem cells. Non-stem cells include olfactory ensheathing cells and Schwann cells. Transplantation of inhibitory interneurons to alleviate neuropathic pain in patients is receiving widespread attention. Different types of cell transplantation have their own advantages and disadvantages, and multiple cell transplantation may be more helpful to the patient’s functional recovery. These cells have certain effects on the recovery of neurological function and the improvement of complications, but further exploration is needed in clinical application. The application of a variety of cell transplantation, gene technology, bioengineering and other technologies has made the prospect of cell transplantation more extensive. There is a need to find a safe and effective comprehensive treatment to maximize and restore the patient’s performance.

Stem Cell Transplantation: A Promising Therapy for Spinal Cord Injury

2020 ◽  
Vol 15 (4) ◽  
pp. 321-331 ◽  
Author(s):  
Zhe Gong ◽  
Kaishun Xia ◽  
Ankai Xu ◽  
Chao Yu ◽  
Chenggui Wang ◽  
...  
Keyword(s):  
Spinal Cord ◽  
Stem Cells ◽  
Spinal Cord Injury ◽  
Stem Cell ◽  
Stem Cell Transplantation ◽  
Cell Transplantation ◽  
Therapeutic Potential ◽  
Embryonic Stem ◽  
Current Status ◽  
Cord Injury

Spinal Cord Injury (SCI) causes irreversible functional loss of the affected population. The incidence of SCI keeps increasing, resulting in huge burden on the society. The pathogenesis of SCI involves neuron death and exotic reaction, which could impede neuron regeneration. In clinic, the limited regenerative capacity of endogenous cells after SCI is a major problem. Recent studies have demonstrated that a variety of stem cells such as induced Pluripotent Stem Cells (iPSCs), Embryonic Stem Cells (ESCs), Mesenchymal Stem Cells (MSCs) and Neural Progenitor Cells (NPCs) /Neural Stem Cells (NSCs) have therapeutic potential for SCI. However, the efficacy and safety of these stem cellbased therapy for SCI remain controversial. In this review, we introduce the pathogenesis of SCI, summarize the current status of the application of these stem cells in SCI repair, and discuss possible mechanisms responsible for functional recovery of SCI after stem cell transplantation. Finally, we highlight several areas for further exploitation of stem cells as a promising regenerative therapy of SCI.

scholarly journals Comparison of intramedullary transplantation of olfactory ensheathing cell for patients with chronic complete spinal cord injury worldwide

2018 ◽  
Vol 1 (1) ◽  
pp. 146-151 ◽  
Author(s):  
Lin Chen ◽  
Yuqi Zhang ◽  
Xijing He ◽  
Saberi Hooshang
Keyword(s):  
Spinal Cord ◽  
Spinal Cord Injury ◽  
Cell Transplantation ◽  
Clinical Results ◽  
Postoperative Management ◽  
Olfactory Ensheathing Cells ◽  
Olfactory Ensheathing Cell ◽  
Advantages And Disadvantages ◽  
Cord Injury ◽  
Ensheathing Cells

Objectives:Traumatic spinal cord injury (tSCI) remains a major clinical challenge. Cell transplantation brings a glimmer of light, among them olfactory ensheathing cells (OECs) have shown some neurorestorative effect. Due to the results of each group lack basic consistency, many technical details are believed to affect the overall outcome. We compare the clinical outcome of intramedullary transplant of olfactory ensheathing cells for patients with spinal cord injury at multi-centers worldwide, and to explore the potential standardized transplantation that suits for the clinical requirements.Methods:Here, we used the Pubmed and CNKI databases to search online the literatures published in the last 20 years for the clinical studies/trials of OECs for chronic spinal cord injury in the representative clinical center. The results of these representative clinical treatment centers were searched and analyzed. The parameters which may affect the effect including the concentration of cells, the total number of cells, the choice of incision, the site of transplantation, the number of transplantation sites, the advantages and disadvantages of transplantation equipment, and postoperative management, were compared carefully to clarify its impact on the clinical results.Results:In these literatures, 2 Chinese centers, 1 Australian center and 1 European center were selected for intraspinal transplantation. The reason of different results may be due to the excessive injection times and/or the excessive total injection volume.Conclusions:Cell implant to the spinal cord parenchyma is effective for restoring neurological functions, but improper procedures may lead to ineffective results. Concise surgery appears to be more suitable for clinical application than ostensibly precise and complex injection procedures. Sufficient rehabilitation training is surely necessary for the integration of motor recovery after cell transplantation.

scholarly journals The Potential for Cellular Therapy Combined with Growth Factors in Spinal Cord Injury

2012 ◽  
Vol 2012 ◽  
pp. 1-11 ◽  
Author(s):  
Jack Rosner ◽  
Pablo Avalos ◽  
Frank Acosta ◽  
John Liu ◽  
Doniel Drazin
Keyword(s):  
Spinal Cord ◽  
Stem Cells ◽  
Spinal Cord Injury ◽  
Growth Factors ◽  
Cellular Therapy ◽  
Embryonic Stem ◽  
Neural Regeneration ◽  
Functional Improvement ◽  
Combination Therapies ◽  
Cord Injury

Any traumatic spinal cord injury (SCI) may cause symptoms ranging from pain to complete loss of motor and sensory functions below the level of the injury. Currently, there are over 2 million SCI patients worldwide. The cost of their necessary continuing care creates a burden for the patient, their families, and society. Presently, few SCI treatments are available and none have facilitated neural regeneration and/or significant functional improvement. Research is being conducted in the following areas: pathophysiology, cellular therapies (Schwann cells, embryonic stem cells, induced pluripotent stem cells, mesenchymal stem cells, olfactory ensheathing cells), growth factors (BDNF), inhibitory molecules (NG2, myelin protein), and combination therapies (cell grafts and neurotrophins, cotransplantation). Results are often limited because of the inhibitory environment created following the injury and the limited regenerative potential of the central nervous system. Therapies that show promise in small animal models may not transfer to nonhuman primates and humans. None of the research has resulted in remarkable improvement, but many areas show promise. Studies have suggested that a combination of therapies may enhance results and may be more effective than a single therapy. This paper reviews and discusses the most promising new SCI research including combination therapies.

Cell therapy of combat related spinal cord injury with use of adult neural crest-derived multipotent stem cells

Cytotherapy ◽  
2017 ◽  
Vol 19 (5) ◽  
pp. S223 ◽  
Author(s):  
V Grytsyk ◽  
A Rodnichenko ◽  
O Gubar ◽  
O Rybachuk ◽  
A Zlatska ◽  
...  
Keyword(s):  
Spinal Cord ◽  
Stem Cells ◽  
Spinal Cord Injury ◽  
Cell Therapy ◽  
Neural Crest ◽  
Multipotent Stem Cells ◽  
Cord Injury

Transplantation of embryonic stem cell-derived neural stem cells for spinal cord injury in adult mice

2005 ◽  
Vol 27 (8) ◽  
pp. 812-819 ◽  
Author(s):  
Hajime Kimura ◽  
Masahide Yoshikawa ◽  
Ryousuke Matsuda ◽  
Hayato Toriumi ◽  
Fumihiko Nishimura ◽  
...  
Keyword(s):  
Spinal Cord ◽  
Stem Cells ◽  
Spinal Cord Injury ◽  
Stem Cell ◽  
Neural Stem Cells ◽  
Embryonic Stem Cell ◽  
Embryonic Stem ◽  
Adult Mice ◽  
Cord Injury

scholarly journals Spinal Cord Injury Management through the Combination of Stem Cells and Implantable 3D Bioprinted Platforms

Cells ◽  
2021 ◽  
Vol 10 (11) ◽  
pp. 3189
Author(s):  
Atefeh Zarepour ◽  
Sara Hooshmand ◽  
Aylin Gökmen ◽  
Ali Zarrabi ◽  
Ebrahim Mostafavi
Keyword(s):  
Spinal Cord ◽  
Stem Cells ◽  
Spinal Cord Injury ◽  
Functional Integration ◽  
Cell Types ◽  
3D Bioprinting ◽  
Multipotent Stem Cells ◽  
Novel Treatments ◽  
Combined Application ◽  
Cord Injury

Spinal cord injury (SCI) has a major impact on affected patients due to its pathological consequences and absence of capacity for self-repair. Currently available therapies are unable to restore lost neural functions. Thus, there is a pressing need to develop novel treatments that will promote functional repair after SCI. Several experimental approaches have been explored to tackle SCI, including the combination of stem cells and 3D bioprinting. Implanted multipotent stem cells with self-renewing capacity and the ability to differentiate to a diversity of cell types are promising candidates for replacing dead cells in injured sites and restoring disrupted neural circuits. However, implanted stem cells need protection from the inflammatory agents in the injured area and support to guide them to appropriate differentiation. Not only are 3D bioprinted scaffolds able to protect stem cells, but they can also promote their differentiation and functional integration at the site of injury. In this review, we showcase some recent advances in the use of stem cells for the treatment of SCI, different types of 3D bioprinting methods, and the combined application of stem cells and 3D bioprinting technique for effective repair of SCI.

scholarly journals Cell Transplantation for Spinal Cord Injury: Tumorigenicity of Induced Pluripotent Stem Cell-Derived Neural Stem/Progenitor Cells

2018 ◽  
Vol 2018 ◽  
pp. 1-7 ◽  
Author(s):  
Junhao Deng ◽  
Yiling Zhang ◽  
Yong Xie ◽  
Licheng Zhang ◽  
Peifu Tang
Keyword(s):  
Spinal Cord ◽  
Stem Cells ◽  
Spinal Cord Injury ◽  
Embryonic Stem ◽  
Induced Pluripotent Stem Cell ◽  
Therapeutic Effects ◽  
Cord Injury ◽  
Neural Stem Progenitor Cells ◽  
Underlying Mechanisms ◽  
Induced Pluripotent

Spinal cord injury (SCI) is an intractable and worldwide difficult medical challenge with limited treatments. Neural stem/progenitor cell (NS/PC) transplantation derived from fetal tissues or embryonic stem cells (ESCs) has demonstrated therapeutic effects via replacement of lost neurons and severed axons and creation of permissive microenvironment to promote repair of spinal cord and axon regeneration but causes ethnical concerns and immunological rejections as well. Thus, the implementation of induced pluripotent stem cells (iPSCs), which can be generated from adult somatic cells and differentiated into NS/PCs, provides an effective alternation in the treatment of SCI. However, as researches further deepen, there is accumulating evidence that the use of iPSC-derived NS/PCs shows mounting concerns of safety, especially the tumorigenicity. This review discusses the tumorigenicity of iPSC-derived NS/PCs focusing on the two different routes of tumorigenicity (teratomas and true tumors) and underlying mechanisms behind them, as well as possible solutions to circumvent them.

Sign in / Sign up

Export Citation Format

Share Document