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de Araujo FF, Marcon RM, Cristante AF, Filho TEPB. Glutathione effect on functional and histological recovery after spinal cord injury in rats. Clinics (Sao Paulo) 2024; 79:100359. [PMID: 38657346 PMCID: PMC11059465 DOI: 10.1016/j.clinsp.2024.100359] [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: 07/06/2023] [Accepted: 03/29/2024] [Indexed: 04/26/2024] Open
Abstract
OBJECTIVE The aim of this study was to evaluate the GSH effect on functional and histological recovery after experimental spinal cord injury in rats. METHODS Forty Wistar rats were subjected to spinal cord injury through the Multicenter Animal Spinal Cord Injury Study (MASCIS) Impactor system. The rats were sorted and divided into four groups, as follows: Group 1 ‒ Laminectomy and spinal cord injury; Group 2 ‒ Laminectomy, spinal cord injury and Saline Solution (SS) 0.9%; Group 3 ‒ Laminectomy, spinal cord injury, and GSH; and Group 4 ‒ lLaminectomy without spinal cord injury. GSH and SS were administered intraperitoneally. Groups 1 and 4 received no intervention. RESULTS The rats were evaluated for locomotor function recovery at seven different times by the Basso, Beattie, and Bresnahan (BBB) scale on days 2, 7, 14, 21, 28, 35, and 42 after the spinal cord injury. On day 42, the rats were sacrificed to analyze the histological findings of the injured spinal cord. In the group submitted to GSH, our experimental study revealed better functional scores on the BBB scale, horizontal ladder scale, and cranial and caudal axon count. The differences found were statistically significant in BBB scores and axonal count analysis. CONCLUSION This study demonstrated that using glutathione in experimental spinal trauma can lead to better functional recovery and improved axonal regeneration rate in Wistar rats submitted to experimental spinal cord injury.
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Affiliation(s)
- Fernando Flores de Araujo
- Instituto de Ortopedia e Traumatologia, Hospital das Clínicas, Faculdade de Medicina, Universidade de São Paulo (IOT-HCFMUSP), São Paulo, SP, Brazil.
| | - Raphael Martus Marcon
- Grupo de Cirurgia de Coluna, Laboratório de Investigações Médicas, Instituto de Ortopedia e Traumatologia, Hospital das Clínicas, Faculdade de Medicina, Universidade de São Paulo (IOT-HCFMUSP), São Paulo, SP, Brazil
| | - Alexandre Fogaça Cristante
- Grupo de Cirurgia de Coluna, Laboratório de Investigações Médicas, Instituto de Ortopedia e Traumatologia, Hospital das Clínicas, Faculdade de Medicina, Universidade de São Paulo (IOT-HCFMUSP), São Paulo, SP, Brazil
| | - Tarcísio Eloy Pessoa Barros Filho
- Grupo de Cirurgia de Coluna, Laboratório de Investigações Médicas, Instituto de Ortopedia e Traumatologia, Hospital das Clínicas, Faculdade de Medicina, Universidade de São Paulo (IOT-HCFMUSP), São Paulo, SP, Brazil
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Kim SJ, Ko WK, Han GH, Lee D, Cho MJ, Sheen SH, Sohn S. Axon guidance gene-targeted siRNA delivery system improves neural stem cell transplantation therapy after spinal cord injury. Biomater Res 2023; 27:101. [PMID: 37840145 PMCID: PMC10577901 DOI: 10.1186/s40824-023-00434-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2023] [Accepted: 09/18/2023] [Indexed: 10/17/2023] Open
Abstract
BACKGROUND Neural stem cells (NSCs) derived from the embryonic spinal cord are excellent candidates for the cellular regeneration of lost neural cells after spinal cord injury (SCI). Semaphorin 3 A (Sema3A) is well known as being implicated in the major axon guidance of the growth cone as a repulsive function during the development of the central nervous system, yet its function in NSC transplantation therapy for SCI has not been investigated. Here, we report for the first time that embryonic spinal cord-derived NSCs significantly express Sema3A in the SCI environment, potentially facilitating inhibition of cell proliferation after transplantation. METHODS siRNA-Sema3A was conjugated with poly-l-lysin-coated gold nanoparticles (AuNPs) through a charge interaction process. NSCs were isolated from embryonic spinal cords of rats. Then, the cells were embedded into a dual-degradable hydrogel with the siRNA- Sema3A loaded-AuNPs and transplanted after complete SCI in rats. RESULTS The knockdown of Sema3A by delivering siRNA nanoparticles via dual-degradable hydrogels led to a significant increase in cell survival and neuronal differentiation of the transplanted NSCs after SCI. Of note, the knockdown of Sema3A increased the synaptic connectivity of transplanted NSC in the injured spinal cord. Moreover, extracellular matrix molecule and functional recovery were significantly improved in Sema3A-inhibited rats compared to those in rats with only NSCs transplanted. CONCLUSIONS These findings demonstrate the important role of Sema3A in NSC transplantation therapy, which may be considered as a future cell transplantation therapy for SCI cases.
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Affiliation(s)
- Seong Jun Kim
- Department of Neurosurgery, CHA Bundang Medical Center, CHA University, 59, Yatap-ro, Bundang- gu, Seongnam-si, 13496, Gyeonggi-do, Republic of Korea
- Department of Biomedical Science, CHA University, 335, Pangyo-ro, Bundang-gu, Seongnam-si, 13488, Gyeonggi-do, Republic of Korea
| | - Wan-Kyu Ko
- Department of Neurosurgery, CHA Bundang Medical Center, CHA University, 59, Yatap-ro, Bundang- gu, Seongnam-si, 13496, Gyeonggi-do, Republic of Korea
- Department of Biomedical Science, CHA University, 335, Pangyo-ro, Bundang-gu, Seongnam-si, 13488, Gyeonggi-do, Republic of Korea
| | - Gong Ho Han
- Department of Neurosurgery, CHA Bundang Medical Center, CHA University, 59, Yatap-ro, Bundang- gu, Seongnam-si, 13496, Gyeonggi-do, Republic of Korea
- Department of Biomedical Science, CHA University, 335, Pangyo-ro, Bundang-gu, Seongnam-si, 13488, Gyeonggi-do, Republic of Korea
| | - Daye Lee
- Department of Neurosurgery, CHA Bundang Medical Center, CHA University, 59, Yatap-ro, Bundang- gu, Seongnam-si, 13496, Gyeonggi-do, Republic of Korea
- Department of Biomedical Science, CHA University, 335, Pangyo-ro, Bundang-gu, Seongnam-si, 13488, Gyeonggi-do, Republic of Korea
| | - Min Jai Cho
- Department of Neurosurgery, Chungbuk National University, 776, 1Sunhawn-ro, Seowon-gu, Cheongju-si, 28644, Republic of Korea
| | - Seung Hun Sheen
- Department of Neurosurgery, CHA Bundang Medical Center, CHA University, 59, Yatap-ro, Bundang- gu, Seongnam-si, 13496, Gyeonggi-do, Republic of Korea
| | - Seil Sohn
- Department of Neurosurgery, CHA Bundang Medical Center, CHA University, 59, Yatap-ro, Bundang- gu, Seongnam-si, 13496, Gyeonggi-do, Republic of Korea.
- Department of Biomedical Science, CHA University, 335, Pangyo-ro, Bundang-gu, Seongnam-si, 13488, Gyeonggi-do, Republic of Korea.
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Guo L, Guo Y, Wang R, Feng J, Shao N, Zhou X, Zhou Y. Interface Chirality: From Biological Effects to Biomedical Applications. Molecules 2023; 28:5629. [PMID: 37570600 PMCID: PMC10419656 DOI: 10.3390/molecules28155629] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2023] [Revised: 07/16/2023] [Accepted: 07/21/2023] [Indexed: 08/13/2023] Open
Abstract
Chiral surface is a critical mediator that significantly impacts interaction with biological systems on regulating cell behavior. To better understand how the properties of interfacial Chirality affect cell behavior and address the limitations of chiral materials for biomedical applications, in this review, we mainly focus on the recent developments of chiral bio-interfaces for the controllable and accurate guidance of chiral biomedical phenomena. In particular, we will discuss how cells or organisms sense and respond to the chiral stimulus, as well as the chirality mediating cell fate, tissue repair, and organism immune response will be reviewed. In addition, the biological applications of chirality, such as drug delivery, antibacterial, antivirus and antitumor activities, and biological signal detection, will also be reviewed. Finally, the challenges of chiral bio-interfaces for controlling biological response and the further application of interface chirality materials for biomedical will be discussed.
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Affiliation(s)
- Liting Guo
- Joint Research Centre on Medicine, Affiliated Xiangshan Hospital, Wenzhou Medical University, Ningbo 315700, China
- Zhejiang Engineering Research Center for Tissue Repair Materials, Wenzhou Institute, University of Chinese Academy of Sciences, Wenzhou 325000, China
| | - Yanqiu Guo
- Zhejiang Engineering Research Center for Tissue Repair Materials, Wenzhou Institute, University of Chinese Academy of Sciences, Wenzhou 325000, China
| | - Rui Wang
- Zhejiang Engineering Research Center for Tissue Repair Materials, Wenzhou Institute, University of Chinese Academy of Sciences, Wenzhou 325000, China
| | - Jie Feng
- School of Pharmacy, Queens University Belfast, 97 Lisburn Road, Belfast BT9 7BL, UK
| | - Nannan Shao
- Zhejiang Engineering Research Center for Tissue Repair Materials, Wenzhou Institute, University of Chinese Academy of Sciences, Wenzhou 325000, China
| | - Xiaolin Zhou
- Zhejiang Engineering Research Center for Tissue Repair Materials, Wenzhou Institute, University of Chinese Academy of Sciences, Wenzhou 325000, China
| | - Yunlong Zhou
- Joint Research Centre on Medicine, Affiliated Xiangshan Hospital, Wenzhou Medical University, Ningbo 315700, China
- Zhejiang Engineering Research Center for Tissue Repair Materials, Wenzhou Institute, University of Chinese Academy of Sciences, Wenzhou 325000, China
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Ahmed W, Karabaliev M, Gao C. Taking chiral polymers toward immune regulation. JOURNAL OF POLYMER SCIENCE 2022. [DOI: 10.1002/pol.20210936] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Wajiha Ahmed
- MOE Key Laboratory of Macromolecular Synthesis and Functionalization, Department of Polymer Science and Engineering Zhejiang University Hangzhou China
| | - Miroslav Karabaliev
- Department of Medical Physics, Biophysics and Radiology, Faculty of Medicine Trakia University Bulgaria
| | - Changyou Gao
- MOE Key Laboratory of Macromolecular Synthesis and Functionalization, Department of Polymer Science and Engineering Zhejiang University Hangzhou China
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Ko W, Kim SJ, Han GH, Lee D, Jeong D, Lee SJ, Han I, Hong JB, Sheen SH, Sohn S. Transplantation of neuron‐inducing grafts embedding positively charged gold nanoparticles for the treatment of spinal cord injury. BIOENGINEERING & TRANSLATIONAL MEDICINE 2022; 7:e10326. [PMID: 36176600 PMCID: PMC9472004 DOI: 10.1002/btm2.10326] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/05/2021] [Revised: 03/26/2022] [Accepted: 03/31/2022] [Indexed: 11/10/2022]
Abstract
In this study, we aimed to investigate the recovery after traumatic spinal cord injury (SCI) by inducing cellular differentiation of transplanted neural stem cells (NSCs) into neurons. We dissociated NSCs from the spinal cords of Fisher 344 rat embryos. An injectable gel crosslinked with glycol chitosan and oxidized hyaluronate was used as a vehicle for NSC transplantation. The gel graft containing the NSC and positively charged gold nanoparticles (pGNP) was implanted into spinal cord lesions in Sprague–Dawley rats (NSC‐pGNP gel group). Cellular differentiation of grafted NSCs into neurons (stained with β‐tubulin III [also called Tuj1]) was significantly increased in the NSC‐pGNP gel group (***p < 0.001) compared to those of two control groups (NSC and NSC gel groups) in the SCI conditions. The NSC‐pGNP gel group showed the lowest differentiation into astrocytes (stained with glial fibrillary acidic protein). Regeneration of damaged axons (stained with biotinylated dextran amines) within the lesion was two‐fold higher in the NSC‐pGNP gel group than that in the NSC gel group. The highest locomotor scores were also found in the NSC‐pGNP gel group. These outcomes suggest that neuron‐inducing pGNP gel graft embedding embryonic spinal cord‐derived NSCs can be a useful type of stem cell therapy after SCI.
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Affiliation(s)
- Wan‐Kyu Ko
- Department of Neurosurgery CHA Bundang Medical Center, CHA University Seongnam‐si Gyeonggi‐do Republic of Korea
- Department of Biomedical Science CHA Bundang Medical Center, CHA University Seongnam‐si Gyeonggi‐do Republic of Korea
| | - Seong Jun Kim
- Department of Neurosurgery CHA Bundang Medical Center, CHA University Seongnam‐si Gyeonggi‐do Republic of Korea
- Department of Biomedical Science CHA Bundang Medical Center, CHA University Seongnam‐si Gyeonggi‐do Republic of Korea
| | - Gong Ho Han
- Department of Neurosurgery CHA Bundang Medical Center, CHA University Seongnam‐si Gyeonggi‐do Republic of Korea
- Department of Biomedical Science CHA Bundang Medical Center, CHA University Seongnam‐si Gyeonggi‐do Republic of Korea
| | - Daye Lee
- Department of Neurosurgery CHA Bundang Medical Center, CHA University Seongnam‐si Gyeonggi‐do Republic of Korea
- Department of Biomedical Science CHA Bundang Medical Center, CHA University Seongnam‐si Gyeonggi‐do Republic of Korea
| | - Dabin Jeong
- Department of Neurosurgery CHA Bundang Medical Center, CHA University Seongnam‐si Gyeonggi‐do Republic of Korea
- Department of Biology Lawrence University Appleton Wisconsin USA
| | - Sang Jin Lee
- Department of Dental Materials, School of Dentistry Kyung Hee University Seoul Republic of Korea
| | - In‐Bo Han
- Department of Neurosurgery CHA Bundang Medical Center, CHA University Seongnam‐si Gyeonggi‐do Republic of Korea
| | - Je Beom Hong
- Department of Neurosurgery Kangbuk Samsung Hospital, Sungkyunkwan University School of Medicine Seoul Republic of Korea
| | - Seung Hun Sheen
- Department of Neurosurgery CHA Bundang Medical Center, CHA University Seongnam‐si Gyeonggi‐do Republic of Korea
| | - Seil Sohn
- Department of Neurosurgery CHA Bundang Medical Center, CHA University Seongnam‐si Gyeonggi‐do Republic of Korea
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