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Wang Q, Liu K, Cao X, Rong W, Shi W, Yu Q, Deng W, Yu J, Xu X. Plant-derived exosomes extracted from Lycium barbarum L. loaded with isoliquiritigenin to promote spinal cord injury repair based on 3D printed bionic scaffold. Bioeng Transl Med 2024; 9:e10646. [PMID: 39036078 PMCID: PMC11256167 DOI: 10.1002/btm2.10646] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2023] [Revised: 11/30/2023] [Accepted: 01/12/2024] [Indexed: 07/23/2024] Open
Abstract
Plant-derived exosomes (PEs) possess an array of therapeutic properties, including antitumor, antiviral, and anti-inflammatory capabilities. They are also implicated in defensive responses to pathogenic attacks. Spinal cord injuries (SCIs) regeneration represents a global medical challenge, with appropriate research concentration on three pivotal domains: neural regeneration promotion, inflammation inhibition, and innovation and application of regenerative scaffolds. Unfortunately, the utilization of PE in SCI therapy remains unexplored. Herein, we isolated PE from the traditional Chinese medicinal herb, Lycium barbarum L. and discovered their inflammatory inhibition and neuronal differentiation promotion capabilities. Compared with exosomes derived from ectomesenchymal stem cells (EMSCs), PE demonstrated a substantial enhancement in neural differentiation. We encapsulated isoliquiritigenin (ISL)-loaded plant-derived exosomes (ISL@PE) from L. barbarum L. within a 3D-printed bionic scaffold. The intricate construct modulated the inflammatory response following SCI, facilitating the restoration of damaged axons and culminating in ameliorated neurological function. This pioneering investigation proposes a novel potential route for insoluble drug delivery via plant exosomes, as well as SCI repair. The institutional animal care and use committee number is UJS-IACUC-2020121602.
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Affiliation(s)
- Qilong Wang
- Department of PharmaceuticsSchool of Pharmacy, Centre for Nano Drug/Gene Delivery and Tissue Engineering, Jiangsu UniversityZhenjiangPeople's Republic of China
- Medicinal Function Development of New Food ResourcesJiangsu Provincial Research CenterZhenjiangPeople's Republic of China
| | - Kai Liu
- Department of PharmaceuticsSchool of Pharmacy, Centre for Nano Drug/Gene Delivery and Tissue Engineering, Jiangsu UniversityZhenjiangPeople's Republic of China
- Medicinal Function Development of New Food ResourcesJiangsu Provincial Research CenterZhenjiangPeople's Republic of China
| | - Xia Cao
- Department of PharmaceuticsSchool of Pharmacy, Centre for Nano Drug/Gene Delivery and Tissue Engineering, Jiangsu UniversityZhenjiangPeople's Republic of China
- Medicinal Function Development of New Food ResourcesJiangsu Provincial Research CenterZhenjiangPeople's Republic of China
| | - Wanjin Rong
- Department of PharmaceuticsSchool of Pharmacy, Centre for Nano Drug/Gene Delivery and Tissue Engineering, Jiangsu UniversityZhenjiangPeople's Republic of China
- Medicinal Function Development of New Food ResourcesJiangsu Provincial Research CenterZhenjiangPeople's Republic of China
| | - Wenwan Shi
- Department of PharmaceuticsSchool of Pharmacy, Centre for Nano Drug/Gene Delivery and Tissue Engineering, Jiangsu UniversityZhenjiangPeople's Republic of China
- Medicinal Function Development of New Food ResourcesJiangsu Provincial Research CenterZhenjiangPeople's Republic of China
| | - Qintong Yu
- Department of PharmaceuticsSchool of Pharmacy, Centre for Nano Drug/Gene Delivery and Tissue Engineering, Jiangsu UniversityZhenjiangPeople's Republic of China
- Medicinal Function Development of New Food ResourcesJiangsu Provincial Research CenterZhenjiangPeople's Republic of China
| | - Wenwen Deng
- Department of PharmaceuticsSchool of Pharmacy, Centre for Nano Drug/Gene Delivery and Tissue Engineering, Jiangsu UniversityZhenjiangPeople's Republic of China
- Medicinal Function Development of New Food ResourcesJiangsu Provincial Research CenterZhenjiangPeople's Republic of China
| | - Jiangnan Yu
- Department of PharmaceuticsSchool of Pharmacy, Centre for Nano Drug/Gene Delivery and Tissue Engineering, Jiangsu UniversityZhenjiangPeople's Republic of China
- Medicinal Function Development of New Food ResourcesJiangsu Provincial Research CenterZhenjiangPeople's Republic of China
| | - Ximing Xu
- Department of PharmaceuticsSchool of Pharmacy, Centre for Nano Drug/Gene Delivery and Tissue Engineering, Jiangsu UniversityZhenjiangPeople's Republic of China
- Medicinal Function Development of New Food ResourcesJiangsu Provincial Research CenterZhenjiangPeople's Republic of China
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Tashiro S, Shibata S, Nagoshi N, Zhang L, Yamada S, Tsuji T, Nakamura M, Okano H. Do Pharmacological Treatments Act in Collaboration with Rehabilitation in Spinal Cord Injury Treatment? A Review of Preclinical Studies. Cells 2024; 13:412. [PMID: 38474376 DOI: 10.3390/cells13050412] [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: 01/17/2024] [Revised: 02/18/2024] [Accepted: 02/24/2024] [Indexed: 03/14/2024] Open
Abstract
There is no choice other than rehabilitation as a practical medical treatment to restore impairments or improve activities after acute treatment in people with spinal cord injury (SCI); however, the effect is unremarkable. Therefore, researchers have been seeking effective pharmacological treatments. These will, hopefully, exert a greater effect when combined with rehabilitation. However, no review has specifically summarized the combinatorial effects of rehabilitation with various medical agents. In the current review, which included 43 articles, we summarized the combinatorial effects according to the properties of the medical agents, namely neuromodulation, neurotrophic factors, counteraction to inhibitory factors, and others. The recovery processes promoted by rehabilitation include the regeneration of tracts, neuroprotection, scar tissue reorganization, plasticity of spinal circuits, microenvironmental change in the spinal cord, and enforcement of the musculoskeletal system, which are additive, complementary, or even synergistic with medication in many cases. However, there are some cases that lack interaction or even demonstrate competition between medication and rehabilitation. A large fraction of the combinatorial mechanisms remains to be elucidated, and very few studies have investigated complex combinations of these agents or targeted chronically injured spinal cords.
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Affiliation(s)
- Syoichi Tashiro
- Department of Rehabilitation Medicine, School of Medicine, Keio University, Tokyo 160-8582, Japan
- Department of Rehabilitation Medicine, Faculty of Medicine, Kyorin University, Tokyo 181-8611, Japan
| | - Shinsuke Shibata
- Division of Microscopic Anatomy, Graduate School of Medical and Dental Sciences, Niigata University, Niigata 951-8510, Japan
| | - Narihito Nagoshi
- Department of Orthopaedic Surgery, School of Medicine, Keio University, Tokyo 160-8582, Japan
| | - Liang Zhang
- Department of Rehabilitation Medicine, Faculty of Medicine, Kyorin University, Tokyo 181-8611, Japan
| | - Shin Yamada
- Department of Rehabilitation Medicine, Faculty of Medicine, Kyorin University, Tokyo 181-8611, Japan
| | - Tetsuya Tsuji
- Department of Rehabilitation Medicine, School of Medicine, Keio University, Tokyo 160-8582, Japan
| | - Masaya Nakamura
- Department of Orthopaedic Surgery, School of Medicine, Keio University, Tokyo 160-8582, Japan
| | - Hideyuki Okano
- Department of Physiology, School of Medicine, Keio University, Tokyo 160-8582, Japan
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Lee CY, Chooi WH, Ng S, Chew SY. Modulating neuroinflammation through molecular, cellular and biomaterial-based approaches to treat spinal cord injury. Bioeng Transl Med 2023; 8:e10389. [PMID: 36925680 PMCID: PMC10013833 DOI: 10.1002/btm2.10389] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2022] [Revised: 07/02/2022] [Accepted: 07/16/2022] [Indexed: 11/09/2022] Open
Abstract
The neuroinflammatory response that is elicited after spinal cord injury contributes to both tissue damage and reparative processes. The complex and dynamic cellular and molecular changes within the spinal cord microenvironment result in a functional imbalance of immune cells and their modulatory factors. To facilitate wound healing and repair, it is necessary to manipulate the immunological pathways during neuroinflammation to achieve successful therapeutic interventions. In this review, recent advancements and fresh perspectives on the consequences of neuroinflammation after SCI and modulation of the inflammatory responses through the use of molecular-, cellular-, and biomaterial-based therapies to promote tissue regeneration and functional recovery will be discussed.
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Affiliation(s)
- Cheryl Yi‐Pin Lee
- Institute of Molecular and Cell BiologyA*STAR Research EntitiesSingaporeSingapore
| | - Wai Hon Chooi
- Institute of Molecular and Cell BiologyA*STAR Research EntitiesSingaporeSingapore
| | - Shi‐Yan Ng
- Institute of Molecular and Cell BiologyA*STAR Research EntitiesSingaporeSingapore
| | - Sing Yian Chew
- School of Chemical and Biomedical EngineeringNanyang Technological UniversitySingaporeSingapore
- Lee Kong Chian School of MedicineNanyang Technological UniversitySingaporeSingapore
- School of Materials Science and EngineeringNanyang Technological UniversitySingaporeSingapore
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Sousa JPM, Stratakis E, Mano J, Marques PAAP. Anisotropic 3D scaffolds for spinal cord guided repair: Current concepts. BIOMATERIALS ADVANCES 2023; 148:213353. [PMID: 36848743 DOI: 10.1016/j.bioadv.2023.213353] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/09/2023] [Revised: 02/15/2023] [Accepted: 02/17/2023] [Indexed: 02/24/2023]
Abstract
A spinal cord injury (SCI) can be caused by unforeseen events such as a fall, a vehicle accident, a gunshot, or a malignant illness, which has a significant impact on the quality of life of the patient. Due to the limited regenerative potential of the central nervous system (CNS), SCI is one of the most daunting medical challenges of modern medicine. Great advances have been made in tissue engineering and regenerative medicine, which include the transition from two-dimensional (2D) to three-dimensional (3D) biomaterials. Combinatory treatments that use 3D scaffolds may significantly enhance the repair and regeneration of functional neural tissue. In an effort to mimic the chemical and physical properties of neural tissue, scientists are researching the development of the ideal scaffold made of synthetic and/or natural polymers. Moreover, in order to restore the architecture and function of neural networks, 3D scaffolds with anisotropic properties that replicate the native longitudinal orientation of spinal cord nerve fibres are being designed. In an effort to determine if scaffold anisotropy is a crucial property for neural tissue regeneration, this review focuses on the most current technological developments relevant to anisotropic scaffolds for SCI. Special consideration is given to the architectural characteristics of scaffolds containing axially oriented fibres, channels, and pores. By analysing neural cell behaviour in vitro and tissue integration and functional recovery in animal models of SCI, the therapeutic efficacy is evaluated for its successes and limitations.
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Affiliation(s)
- Joana P M Sousa
- TEMA - Centre for Mechanical Technology and Automation, Department of Mechanical Engineering, University of Aveiro, 3810-193 Aveiro, Portugal; LASI - Intelligent Systems Associate Laboratory, Portugal; Institute of Electronic Structure and Laser, Foundation for Research and Technology-Hellas (FORTH-IESL), Heraklion, Greece; CICECO - Department of Chemistry, University of Aveiro, Campus Universitário de Santiago, Aveiro 3810-193, Portugal
| | - Emmanuel Stratakis
- Institute of Electronic Structure and Laser, Foundation for Research and Technology-Hellas (FORTH-IESL), Heraklion, Greece
| | - João Mano
- CICECO - Department of Chemistry, University of Aveiro, Campus Universitário de Santiago, Aveiro 3810-193, Portugal
| | - Paula A A P Marques
- TEMA - Centre for Mechanical Technology and Automation, Department of Mechanical Engineering, University of Aveiro, 3810-193 Aveiro, Portugal; LASI - Intelligent Systems Associate Laboratory, Portugal.
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Suzuki H, Imajo Y, Funaba M, Ikeda H, Nishida N, Sakai T. Current Concepts of Biomaterial Scaffolds and Regenerative Therapy for Spinal Cord Injury. Int J Mol Sci 2023; 24:ijms24032528. [PMID: 36768846 PMCID: PMC9917245 DOI: 10.3390/ijms24032528] [Citation(s) in RCA: 20] [Impact Index Per Article: 20.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2022] [Revised: 01/05/2023] [Accepted: 01/11/2023] [Indexed: 02/03/2023] Open
Abstract
Spinal cord injury (SCI) is a catastrophic condition associated with significant neurological deficit and social and financial burdens. It is currently being managed symptomatically, with no real therapeutic strategies available. In recent years, a number of innovative regenerative strategies have emerged and have been continuously investigated in preclinical research and clinical trials. In the near future, several more are expected to come down the translational pipeline. Among ongoing and completed trials are those reporting the use of biomaterial scaffolds. The advancements in biomaterial technology, combined with stem cell therapy or other regenerative therapy, can now accelerate the progress of promising novel therapeutic strategies from bench to bedside. Various types of approaches to regeneration therapy for SCI have been combined with the use of supportive biomaterial scaffolds as a drug and cell delivery system to facilitate favorable cell-material interactions and the supportive effect of neuroprotection. In this review, we summarize some of the most recent insights of preclinical and clinical studies using biomaterial scaffolds in regenerative therapy for SCI and summarized the biomaterial strategies for treatment with simplified results data. One hundred and sixty-eight articles were selected in the present review, in which we focused on biomaterial scaffolds. We conducted our search of articles using PubMed and Medline, a medical database. We used a combination of "Spinal cord injury" and ["Biomaterial", or "Scaffold"] as search terms and searched articles published up until 30 April 2022. Successful future therapies will require these biomaterial scaffolds and other synergistic approaches to address the persistent barriers to regeneration, including glial scarring, the loss of a structural framework, and biocompatibility. This database could serve as a benchmark to progress in future clinical trials for SCI using biomaterial scaffolds.
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Kiyotake EA, Martin MD, Detamore MS. Regenerative rehabilitation with conductive biomaterials for spinal cord injury. Acta Biomater 2022; 139:43-64. [PMID: 33326879 DOI: 10.1016/j.actbio.2020.12.021] [Citation(s) in RCA: 45] [Impact Index Per Article: 22.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2020] [Revised: 11/24/2020] [Accepted: 12/09/2020] [Indexed: 02/07/2023]
Abstract
The individual approaches of regenerative medicine efforts alone and rehabilitation efforts alone have not yet fully restored function after severe spinal cord injury (SCI). Regenerative rehabilitation may be leveraged to promote regeneration of the spinal cord tissue, and promote reorganization of the regenerated neural pathways and intact spinal circuits for better functional recovery for SCI. Conductive biomaterials may be a linchpin that empowers the synergy between regenerative medicine and rehabilitation approaches, as electrical stimulation applied to the spinal cord could facilitate neural reorganization. In this review, we discuss current regenerative medicine approaches in clinical trials and the rehabilitation, or neuromodulation, approaches for SCI, along with their respective translational limitations. Furthermore, we review the translational potential, in a surgical context, of conductive biomaterials (e.g., conductive polymers, carbon-based materials, metallic nanoparticle-based materials) as they pertain to SCI. While pre-formed scaffolds may be difficult to translate to human contusion SCIs, injectable composites that contain blended conductive components and can form within the injury may be more translational. However, given that there are currently no in vivo SCI studies that evaluated conductive materials combined with rehabilitation approaches, we discuss several limitations of conductive biomaterials, including demonstrating safety and efficacy, that will need to be addressed in the future for conductive biomaterials to become SCI therapeutics. Even so, the use of conductive biomaterials creates a synergistic opportunity to merge the fields of regenerative medicine and rehabilitation and redefine what regenerative rehabilitation means for the spinal cord. STATEMENT OF SIGNIFICANCE: For spinal cord injury (SCI), the individual approaches of regenerative medicine and rehabilitation are insufficient to fully restore functional recovery; however, the goal of regenerative rehabilitation is to combine these two disparate fields to maximize the functional outcomes. Concepts similar to regenerative rehabilitation for SCI have been discussed in several reviews, but for the first time, this review considers how conductive biomaterials may synergize the two approaches. We cover current regenerative medicine and rehabilitation approaches for SCI, and the translational advantages and disadvantages, in a surgical context, of conductive biomaterials used in biomedical applications that may be additionally applied to SCI. Furthermore, we identify the current limitations and translational challenges for conductive biomaterials before they may become therapeutics for SCI.
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Xin N, Liu X, Chen S, Zhang Y, Wei D, Sun J, Zhou L, Wu C, Fan H. Neuroinduction and neuroprotection co-enhanced spinal cord injury repair based on IL-4@ZIF-8-loaded hyaluronan-collagen hydrogels with nano-aligned and viscoelastic cues. J Mater Chem B 2022; 10:6315-6327. [DOI: 10.1039/d2tb01111e] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Spontaneous recovery after spinal cord injury (SCI) is extremely limited since the severe inflammatory responses lead to secondary damage, and the diseased extracellular matrix (ECM) fails to provide inductive cues...
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Wu C, Chen S, Zhou T, Wu K, Qiao Z, Zhang Y, Xin N, Liu X, Wei D, Sun J, Luo H, Zhou L, Fan H. Antioxidative and Conductive Nanoparticles-Embedded Cell Niche for Neural Differentiation and Spinal Cord Injury Repair. ACS APPLIED MATERIALS & INTERFACES 2021; 13:52346-52361. [PMID: 34699166 DOI: 10.1021/acsami.1c14679] [Citation(s) in RCA: 27] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
Following spinal cord injury (SCI), the transmission of electrical signals is interrupted, and an oxidative microenvironment is generated, hindering nerve regeneration and functional recovery. The strategies of regulating oxidative pathological microenvironment while restoring endogenous electrical signal transmission hold promise for SCI treatment. However, challenges are still faced in simply fabricating bioactive scaffolds with both antioxidation and conductivity. Herein, aiming to construct an antioxidative and conductive microenvironment for nerve regeneration, the difunctional polypyrrole (PPy) nanoparticles were developed and incorporated into bioactive collagen/hyaluronan hydrogel. Owing to the embedded PPy in hydrogel, the encapsulated bone marrow mesenchymal stem cells (BMSCs) can be protected from oxidative damage, and their neuronal differentiation was promoted by the synergy between conductivity and electrical stimulation, which is proved to be related to PI3K/Akt and the mitogen-activated protein kinase (MAPK) pathway. In SCI rats, the BMSC-laden difunctional hydrogel restored the transmission of bioelectric signals and inhibited secondary damage, thereby facilitating neurogenesis, resulting in prominent nerve regeneration and functional recovery. Overall, taking advantage of a difunctional nanomaterial to meet two essential requirements in SCI repair, this work provides intriguing insights into the design of biomaterials for nerve regeneration and tissue engineering.
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Affiliation(s)
- Chengheng Wu
- National Engineering Research Center for Biomaterials, College of Biomedical Engineering, Sichuan University, Chengdu 610064, Sichuan, China
| | - Suping Chen
- National Engineering Research Center for Biomaterials, College of Biomedical Engineering, Sichuan University, Chengdu 610064, Sichuan, China
| | - Ting Zhou
- National Engineering Research Center for Biomaterials, College of Biomedical Engineering, Sichuan University, Chengdu 610064, Sichuan, China
| | - Kai Wu
- National Engineering Research Center for Biomaterials, College of Biomedical Engineering, Sichuan University, Chengdu 610064, Sichuan, China
| | - Zi Qiao
- National Engineering Research Center for Biomaterials, College of Biomedical Engineering, Sichuan University, Chengdu 610064, Sichuan, China
| | - Yusheng Zhang
- National Engineering Research Center for Biomaterials, College of Biomedical Engineering, Sichuan University, Chengdu 610064, Sichuan, China
| | - Nini Xin
- National Engineering Research Center for Biomaterials, College of Biomedical Engineering, Sichuan University, Chengdu 610064, Sichuan, China
| | - Xiaoyin Liu
- Department of Neurosurgery, West China Medical School, West China Hospital, Sichuan University, Chengdu 610041, Sichuan, China
| | - Dan Wei
- National Engineering Research Center for Biomaterials, College of Biomedical Engineering, Sichuan University, Chengdu 610064, Sichuan, China
| | - Jing Sun
- National Engineering Research Center for Biomaterials, College of Biomedical Engineering, Sichuan University, Chengdu 610064, Sichuan, China
| | - Hongrong Luo
- National Engineering Research Center for Biomaterials, College of Biomedical Engineering, Sichuan University, Chengdu 610064, Sichuan, China
| | - Liangxue Zhou
- Department of Neurosurgery, West China Medical School, West China Hospital, Sichuan University, Chengdu 610041, Sichuan, China
| | - Hongsong Fan
- National Engineering Research Center for Biomaterials, College of Biomedical Engineering, Sichuan University, Chengdu 610064, Sichuan, China
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Kiyotake EA, Thomas EE, Homburg HB, Milton CK, Smitherman AD, Donahue ND, Fung KM, Wilhelm S, Martin MD, Detamore MS. Conductive and injectable hyaluronic acid/gelatin/gold nanorod hydrogels for enhanced surgical translation and bioprinting. J Biomed Mater Res A 2021; 110:365-382. [PMID: 34390325 DOI: 10.1002/jbm.a.37294] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2021] [Revised: 07/24/2021] [Accepted: 08/02/2021] [Indexed: 12/25/2022]
Abstract
There is growing evidence indicating the need to combine the rehabilitation and regenerative medicine fields to maximize functional recovery after spinal cord injury (SCI), but there are limited methods to synergistically combine the fields. Conductive biomaterials may enable synergistic combination of biomaterials with electric stimulation (ES), which may enable direct ES of neurons to enhance axon regeneration and reorganization for better functional recovery; however, there are three major challenges in developing conductive biomaterials: (1) low conductivity of conductive composites, (2) many conductive components are cytotoxic, and (3) many conductive biomaterials are pre-formed scaffolds and are not injectable. Pre-formed, noninjectable scaffolds may hinder clinical translation in a surgical context for the most common contusion-type of SCI. Alternatively, an injectable biomaterial, inspired by lessons from bioinks in the bioprinting field, may be more translational for contusion SCIs. Therefore, in the current study, a conductive hydrogel was developed by incorporating high aspect ratio citrate-gold nanorods (GNRs) into a hyaluronic acid and gelatin hydrogel. To fabricate nontoxic citrate-GNRs, a robust synthesis for high aspect ratio GNRs was combined with an indirect ligand exchange to exchange a cytotoxic surfactant for nontoxic citrate. For enhanced surgical placement, the hydrogel precursor solution (i.e., before crosslinking) was paste-like, injectable/bioprintable, and fast-crosslinking (i.e., 4 min). Finally, the crosslinked hydrogel supported the adhesion/viability of seeded rat neural stem cells in vitro. The current study developed and characterized a GNR conductive hydrogel/bioink that provided a refinable and translational platform for future synergistic combination with ES to improve functional recovery after SCI.
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Affiliation(s)
- Emi A Kiyotake
- Stephenson School of Biomedical Engineering, University of Oklahoma, Norman, Oklahoma, USA
| | - Emily E Thomas
- Department of Biomedical Engineering, University of Michigan, Ann Arbor, Michigan, USA
| | - Hannah B Homburg
- Department of Neurosurgery, University of Oklahoma Health Sciences Center, Oklahoma City, Oklahoma, USA
| | - Camille K Milton
- Department of Neurosurgery, University of Oklahoma Health Sciences Center, Oklahoma City, Oklahoma, USA
| | - Adam D Smitherman
- Department of Neurosurgery, Rush University Medical Center, Chicago, Illinois, USA
| | - Nathan D Donahue
- Stephenson School of Biomedical Engineering, University of Oklahoma, Norman, Oklahoma, USA
| | - Kar-Ming Fung
- Department of Pathology, University of Oklahoma Health Sciences Center, Oklahoma City, Oklahoma, USA
| | - Stefan Wilhelm
- Stephenson School of Biomedical Engineering, University of Oklahoma, Norman, Oklahoma, USA
| | - Michael D Martin
- Department of Neurosurgery, University of Oklahoma Health Sciences Center, Oklahoma City, Oklahoma, USA
| | - Michael S Detamore
- Stephenson School of Biomedical Engineering, University of Oklahoma, Norman, Oklahoma, USA
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Li Y, Shen PP, Wang B. Induced pluripotent stem cell technology for spinal cord injury: a promising alternative therapy. Neural Regen Res 2021; 16:1500-1509. [PMID: 33433463 PMCID: PMC8323703 DOI: 10.4103/1673-5374.303013] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022] Open
Abstract
Spinal cord injury has long been a prominent challenge in the trauma repair process. Spinal cord injury is a research hotspot by virtue of its difficulty to treat and its escalating morbidity. Furthermore, spinal cord injury has a long period of disease progression and leads to complications that exert a lot of mental and economic pressure on patients. There are currently a large number of therapeutic strategies for treating spinal cord injury, which range from pharmacological and surgical methods to cell therapy and rehabilitation training. All of these strategies have positive effects in the course of spinal cord injury treatment. This review mainly discusses the problems regarding stem cell therapy for spinal cord injury, including the characteristics and action modes of all relevant cell types. Induced pluripotent stem cells, which represent a special kind of stem cell population, have gained impetus in cell therapy development because of a range of advantages. Induced pluripotent stem cells can be developed into the precursor cells of each neural cell type at the site of spinal cord injury, and have great potential for application in spinal cord injury therapy.
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Affiliation(s)
- Yu Li
- Clinical Stem Cell Center, the Affiliated Drum Tower Hospital of Nanjing University Medical School, School of Life Science, Nanjing University, Nanjing, Jiangsu Province, China
| | - Ping-Ping Shen
- State Key Laboratory of Pharmaceutical Biotechnology and The Comprehensive Cancer Center, the Affiliated Drum Tower Hospital of Nanjing University Medical School, School of Life Science, Nanjing University, Nanjing, Jiangsu Province, China
| | - Bin Wang
- Clinical Stem Cell Center, the Affiliated Drum Tower Hospital of Nanjing University Medical School, Nanjing, Jiangsu Province, China
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Localized delivery of CRISPR/dCas9 via layer-by-layer self-assembling peptide coating on nanofibers for neural tissue engineering. Biomaterials 2020; 256:120225. [DOI: 10.1016/j.biomaterials.2020.120225] [Citation(s) in RCA: 22] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2020] [Accepted: 07/03/2020] [Indexed: 12/12/2022]
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