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Gonen ZB, Çolpak HA, Yay A, Gokdemir NS, Bahar D, Günay Canpolat D, Yalcin B. Dental Pulp-Derived Mesenchymal Stem Cells Increase Axon Numbers in Mental Nerve Repair. J Maxillofac Oral Surg 2024; 23:568-573. [PMID: 38911401 PMCID: PMC11190120 DOI: 10.1007/s12663-023-01957-w] [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: 09/04/2022] [Accepted: 06/19/2023] [Indexed: 06/25/2024] Open
Abstract
Aim The mental nerve, the extended part of the inferior alveolar nerve, is often injured during dentoalveolar, orthognathic, or tumor surgery. Numerous therapeutic interventions, including surgery and pharmacotherapy, have been used to enhance the recovery of nerve injuries. Dental pulp stem cells (DPSCs) represent an easily accessible source of adult stem cells that can be isolated from the pulp of extracted teeth. This study evaluated the effect of DPSCs on the regeneration of the mental nerve injury model of rabbits. Methods In this presented study, DPSCs were cultured and cell characterizations were performed by using flow cytometry and immunostainings. Bilateral mental nerve injury models of rabbits were created. In the control group (n = 10), saline was applied, and in the study group (n = 10), 2 × 106 DPSCs were applied to the repaired nerve areas. After 3 weeks, animals were killed and histological examination was obtained by using Masson's trichrome staining. An unpaired Student's t test was used when comparing the groups. Differences were considered to be statistically significant at P values of less than 0.05. Results The DPSCs demonstrated a homogeneous population of mesenchymal stromal cells which expressed cluster of differentiation CD44, CD73, CD90, and CD105 and lack of CD34, CD45, and HLA-DR. Our finding clearly demonstrated that a lower number of cross-sectioned axons were founded in the control group (60.18 ± 2.52) compared to the study group (72.96 ± 2.43) (p = 0.00). Conclusions DPSCs promote mental nerve axonal regeneration. These results suggest that DPSCs provide an important accessible source of adult stem cells for mental nerve regeneration.
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Affiliation(s)
- Zeynep Burcin Gonen
- Department of Oral and Maxillofacial Surgery, Faculty of Dentistry and Genome and Stem Cell Center, Erciyes University, Kayseri, Turkey
| | - Halis Ali Çolpak
- Department of Oral and Maxillofacial Surgery, Faculty of Dentistry, Alanya Aladdin Keykubat University, Antalya, Turkey
| | - Arzu Yay
- Department of Histology and Embryology, Faculty of Medicine, Erciyes University, Kayseri, Turkey
| | | | - Dilek Bahar
- Genome and Stem Cell Center, Erciyes University, Kayseri, Turkey
| | - Dilek Günay Canpolat
- Department of Oral and Maxillofacial Surgery, Faculty of Dentistry, Erciyes University, Kayseri, Turkey
| | - Betül Yalcin
- Genome and Stem Cell Center, Erciyes University, Kayseri, Turkey
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2
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Van Lent J, Prior R, Pérez Siles G, Cutrupi AN, Kennerson ML, Vangansewinkel T, Wolfs E, Mukherjee-Clavin B, Nevin Z, Judge L, Conklin B, Tyynismaa H, Clark AJ, Bennett DL, Van Den Bosch L, Saporta M, Timmerman V. Advances and challenges in modeling inherited peripheral neuropathies using iPSCs. Exp Mol Med 2024; 56:1348-1364. [PMID: 38825644 PMCID: PMC11263568 DOI: 10.1038/s12276-024-01250-x] [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: 11/10/2023] [Revised: 02/21/2024] [Accepted: 03/18/2024] [Indexed: 06/04/2024] Open
Abstract
Inherited peripheral neuropathies (IPNs) are a group of diseases associated with mutations in various genes with fundamental roles in the development and function of peripheral nerves. Over the past 10 years, significant advances in identifying molecular disease mechanisms underlying axonal and myelin degeneration, acquired from cellular biology studies and transgenic fly and rodent models, have facilitated the development of promising treatment strategies. However, no clinical treatment has emerged to date. This lack of treatment highlights the urgent need for more biologically and clinically relevant models recapitulating IPNs. For both neurodevelopmental and neurodegenerative diseases, patient-specific induced pluripotent stem cells (iPSCs) are a particularly powerful platform for disease modeling and preclinical studies. In this review, we provide an update on different in vitro human cellular IPN models, including traditional two-dimensional monoculture iPSC derivatives, and recent advances in more complex human iPSC-based systems using microfluidic chips, organoids, and assembloids.
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Grants
- Wellcome Trust
- R01 NS119678 NINDS NIH HHS
- U01 ES032673 NIEHS NIH HHS
- DOC-PRO4 Universiteit Antwerpen (University of Antwerp)
- This work was supported in part by the University of Antwerp (DOC-PRO4 PhD fellowship to J.V.L. and TOP-BOF research grant no. 38694 to V.T.), the Association Française contre les Myopathies (AFM research grant no. 24063 to V.T.), Association Belge contre les Maladies Neuromusculaires (ABMM research grant no. 1 to J.V.L and V.T), the interuniversity research fund (iBOF project to. L.V.D.B, E.W. and V.T.). V.T. is part of the μNEURO Research Centre of Excellence of the University of Antwerp and is an active member of the European Network for Stem Cell Core Facilities (CorEUStem, COST Action CA20140). Work in the M.L.K group was supported by the NHMRC Ideas Grant (APP1186867), CMT Australia Grant awarded to M.L.K and G.P.-S and the Australian Medical Research Future Fund (MRFF) Genomics Health Futures Mission Grant 2007681. B.M.C. is supported by the American Academy of Neurology and the Passano Foundation. L.M.J. and B.R.C. are supported by the Charcot-Marie-Tooth Association, NINDS R01 NS119678, NIEHS U01 ES032673. H.T. is supported by Academy of Finland Centre of Excellence in Stem Cell Metabolism and Sigrid Juselius Foundation. Work in the D.L.B. group is supported by a Wellcome Investigator Grant (223149/Z/21/Z), the MRC (MR/T020113/1), and with funding from the MRC and Versus Arthritis to the PAINSTORM consortium as part of the Advanced Pain Discovery Platform (MR/W002388/1).
- Australian Medical Association (Australian Medical Association Limited)
- Universiteit Hasselt (UHasselt)
- American Academy of Neurology (AAN)
- Gladstone Institutes (J. David Gladstone Institutes)
- Academy of Finland (Suomen Akatemia)
- Academy of Medical Royal Colleges (AoMRC)
- Wellcome Trust (Wellcome)
- Oxford University Hospitals NHS Trust (Oxford University Hospitals National Health Service Trust)
- KU Leuven (Katholieke Universiteit Leuven)
- Vlaams Instituut voor Biotechnologie (Flanders Institute for Biotechnology)
- Miami University | Leonard M. Miller School of Medicine (Miller School of Medicine)
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Affiliation(s)
- Jonas Van Lent
- Peripheral Neuropathy Research Group, Department of Biomedical Sciences, University of Antwerp, 2610, Antwerp, Belgium
- Laboratory of Neuromuscular Pathology, Institute Born Bunge, 2610, Antwerp, Belgium
- Institute of Oncology Research (IOR), BIOS+, 6500, Bellinzona, Switzerland
- Università della Svizzera Italiana, 6900, Lugano, Switzerland
| | - Robert Prior
- Universitätsklinikum Bonn (UKB), University of Bonn, Bonn, Germany
| | - Gonzalo Pérez Siles
- Northcott Neuroscience Laboratory, ANZAC Research Institute Sydney Local Health District and Faculty of Medicine and Health, University of Sydney, Sydney, NSW, Australia
| | - Anthony N Cutrupi
- Northcott Neuroscience Laboratory, ANZAC Research Institute Sydney Local Health District and Faculty of Medicine and Health, University of Sydney, Sydney, NSW, Australia
| | - Marina L Kennerson
- Northcott Neuroscience Laboratory, ANZAC Research Institute Sydney Local Health District and Faculty of Medicine and Health, University of Sydney, Sydney, NSW, Australia
- Molecular Medicine Laboratory, Concord Hospital, Sydney, NSW, Australia
| | - Tim Vangansewinkel
- UHasselt - Hasselt University, BIOMED, Laboratory for Functional Imaging and Research on Stem Cells (FIERCE Lab), Agoralaan, 3590, Diepenbeek, Belgium
- VIB-Center for Brain and Disease Research, Laboratory of Neurobiology, 3000, Leuven, Belgium
| | - Esther Wolfs
- UHasselt - Hasselt University, BIOMED, Laboratory for Functional Imaging and Research on Stem Cells (FIERCE Lab), Agoralaan, 3590, Diepenbeek, Belgium
| | | | | | - Luke Judge
- Gladstone Institutes, San Francisco, CA, USA
- Department of Pediatrics, University of California, San Francisco, San Francisco, CA, USA
| | - Bruce Conklin
- Gladstone Institutes, San Francisco, CA, USA
- Department of Ophthalmology, University of California, San Francisco, San Francisco, CA, USA
- Department of Medicine, University of California, San Francisco, San Francisco, CA, USA
| | - Henna Tyynismaa
- Stem Cells and Metabolism Research Program, Faculty of Medicine, University of Helsinki, 00290, Helsinki, Finland
| | - Alex J Clark
- Blizard Institute, Barts and the London School of Medicine and Dentistry, Queen Mary University of London, London, UK
| | - David L Bennett
- Nuffield Department of Clinical Neuroscience, Oxford University, Oxford, UK
| | - Ludo Van Den Bosch
- VIB-Center for Brain and Disease Research, Laboratory of Neurobiology, 3000, Leuven, Belgium
- Department of Neurosciences, Experimental Neurology, and Leuven Brain Institute, KU Leuven-University of Leuven, 3000, Leuven, Belgium
| | - Mario Saporta
- Department of Neurology, Miller School of Medicine, University of Miami, Miami, FL, USA
| | - Vincent Timmerman
- Peripheral Neuropathy Research Group, Department of Biomedical Sciences, University of Antwerp, 2610, Antwerp, Belgium.
- Laboratory of Neuromuscular Pathology, Institute Born Bunge, 2610, Antwerp, Belgium.
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Meng Q, Burrell JC, Zhang Q, Le AD. Potential Application of Orofacial MSCs in Tissue Engineering Nerve Guidance for Peripheral Nerve Injury Repair. Stem Cell Rev Rep 2023; 19:2612-2631. [PMID: 37642899 DOI: 10.1007/s12015-023-10609-y] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 08/15/2023] [Indexed: 08/31/2023]
Abstract
Injury to the peripheral nerve causes potential loss of sensory and motor functions, and peripheral nerve repair (PNR) remains a challenging endeavor. The current clinical methods of nerve repair, such as direct suture, autografts, and acellular nerve grafts (ANGs), exhibit their respective disadvantages like nerve tension, donor site morbidity, size mismatch, and immunogenicity. Even though commercially available nerve guidance conduits (NGCs) have demonstrated some clinical successes, the overall clinical outcome is still suboptimal, especially for nerve injuries with a large gap (≥ 3 cm) due to the lack of biologics. In the last two decades, the combination of advanced tissue engineering technologies, stem cell biology, and biomaterial science has significantly advanced the generation of a new generation of NGCs incorporated with biological factors or supportive cells, including mesenchymal stem cells (MSCs), which hold great promise to enhance peripheral nerve repair/regeneration (PNR). Orofacial MSCs are emerging as a unique source of MSCs for PNR due to their neural crest-origin and easy accessibility. In this narrative review, we have provided an update on the pathophysiology of peripheral nerve injury and the properties and biological functions of orofacial MSCs. Then we have highlighted the application of orofacial MSCs in tissue engineering nerve guidance for PNR in various preclinical models and the potential challenges and future directions in this field.
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Affiliation(s)
- Qingyu Meng
- Department of Oral & Maxillofacial Surgery & Pharmacology, University of Pennsylvania School of Dental Medicine, 240 South 40Th Street, Philadelphia, PA, 19104, USA
| | - Justin C Burrell
- Department of Oral & Maxillofacial Surgery & Pharmacology, University of Pennsylvania School of Dental Medicine, 240 South 40Th Street, Philadelphia, PA, 19104, USA
| | - Qunzhou Zhang
- Department of Oral & Maxillofacial Surgery & Pharmacology, University of Pennsylvania School of Dental Medicine, 240 South 40Th Street, Philadelphia, PA, 19104, USA.
| | - Anh D Le
- Department of Oral & Maxillofacial Surgery & Pharmacology, University of Pennsylvania School of Dental Medicine, 240 South 40Th Street, Philadelphia, PA, 19104, USA.
- Department of Oral & Maxillofacial Surgery, Penn Medicine Hospital of the University of Pennsylvania, 3400 Civic Center Boulevard, Philadelphia, PA, 19104, USA.
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Xing WB, Wu ST, Wang XX, Li FY, Wang RX, He JH, Fu J, He Y. Potential of dental pulp stem cells and their products in promoting peripheral nerve regeneration and their future applications. World J Stem Cells 2023; 15:960-978. [PMID: 37970238 PMCID: PMC10631371 DOI: 10.4252/wjsc.v15.i10.960] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/30/2023] [Revised: 10/07/2023] [Accepted: 10/23/2023] [Indexed: 10/26/2023] Open
Abstract
Peripheral nerve injury (PNI) seriously affects people's quality of life. Stem cell therapy is considered a promising new option for the clinical treatment of PNI. Dental stem cells, particularly dental pulp stem cells (DPSCs), are adult pluripotent stem cells derived from the neuroectoderm. DPSCs have significant potential in the field of neural tissue engineering due to their numerous advantages, such as easy isolation, multidifferentiation potential, low immunogenicity, and low transplant rejection rate. DPSCs are extensively used in tissue engineering and regenerative medicine, including for the treatment of sciatic nerve injury, facial nerve injury, spinal cord injury, and other neurodegenerative diseases. This article reviews research related to DPSCs and their advantages in treating PNI, aiming to summarize the therapeutic potential of DPSCs for PNI and the underlying mechanisms and providing valuable guidance and a foundation for future research.
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Affiliation(s)
- Wen-Bo Xing
- Institute of Regenerative and Translational Medicine, Tianyou Hospital, Wuhan University of Science and Technology, Wuhan 430000, Hubei Province, China
- First Clinical College, Wuhan University of Science and Technology, Wuhan 430000, Hubei Province, China
| | - Shu-Ting Wu
- Institute of Regenerative and Translational Medicine, Tianyou Hospital, Wuhan University of Science and Technology, Wuhan 430000, Hubei Province, China
- First Clinical College, Wuhan University of Science and Technology, Wuhan 430000, Hubei Province, China
| | - Xin-Xin Wang
- Institute of Regenerative and Translational Medicine, Tianyou Hospital, Wuhan University of Science and Technology, Wuhan 430000, Hubei Province, China
- First Clinical College, Wuhan University of Science and Technology, Wuhan 430000, Hubei Province, China
| | - Fen-Yao Li
- Institute of Regenerative and Translational Medicine, Tianyou Hospital, Wuhan University of Science and Technology, Wuhan 430000, Hubei Province, China
- First Clinical College, Wuhan University of Science and Technology, Wuhan 430000, Hubei Province, China
| | - Ruo-Xuan Wang
- Institute of Regenerative and Translational Medicine, Tianyou Hospital, Wuhan University of Science and Technology, Wuhan 430000, Hubei Province, China
- First Clinical College, Wuhan University of Science and Technology, Wuhan 430000, Hubei Province, China
| | - Ji-Hui He
- Institute of Regenerative and Translational Medicine, Tianyou Hospital, Wuhan University of Science and Technology, Wuhan 430000, Hubei Province, China
- First Clinical College, Wuhan University of Science and Technology, Wuhan 430000, Hubei Province, China
| | - Jiao Fu
- Institute of Regenerative and Translational Medicine, Tianyou Hospital, Wuhan University of Science and Technology, Wuhan 430000, Hubei Province, China
- First Clinical College, Wuhan University of Science and Technology, Wuhan 430000, Hubei Province, China
| | - Yan He
- Institute of Regenerative and Translational Medicine, Tianyou Hospital, Wuhan University of Science and Technology, Wuhan 430000, Hubei Province, China
- First Clinical College, Wuhan University of Science and Technology, Wuhan 430000, Hubei Province, China
- Department of Stomatology, Tianyou Hospital, Wuhan University of Science and Technology, Wuhan 430000, Hubei Province, China
- Hubei Province Key Laboratory of Oral and Maxillofacial Development and Regeneration, Wuhan 430022, Hubei Province, China.
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Liu Y, Zhang X, Xiao C, Liu B. Engineered hydrogels for peripheral nerve repair. Mater Today Bio 2023; 20:100668. [PMID: 37273791 PMCID: PMC10232914 DOI: 10.1016/j.mtbio.2023.100668] [Citation(s) in RCA: 10] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2023] [Revised: 05/06/2023] [Accepted: 05/16/2023] [Indexed: 06/06/2023] Open
Abstract
Peripheral nerve injury (PNI) is a complex disease that often appears in young adults. It is characterized by a high incidence, limited treatment options, and poor clinical outcomes. This disease not only causes dysfunction and psychological disorders in patients but also brings a heavy burden to the society. Currently, autologous nerve grafting is the gold standard in clinical treatment, but complications, such as the limited source of donor tissue and scar tissue formation, often further limit the therapeutic effect. Recently, a growing number of studies have used tissue-engineered materials to create a natural microenvironment similar to the nervous system and thus promote the regeneration of neural tissue and the recovery of impaired neural function with promising results. Hydrogels are often used as materials for the culture and differentiation of neurogenic cells due to their unique physical and chemical properties. Hydrogels can provide three-dimensional hydration networks that can be integrated into a variety of sizes and shapes to suit the morphology of neural tissues. In this review, we discuss the recent advances of engineered hydrogels for peripheral nerve repair and analyze the role of several different therapeutic strategies of hydrogels in PNI through the application characteristics of hydrogels in nerve tissue engineering (NTE). Furthermore, the prospects and challenges of the application of hydrogels in the treatment of PNI are also discussed.
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Affiliation(s)
- Yao Liu
- Hand and Foot Surgery Department, First Hospital of Jilin University, Xinmin Street, Changchun, 130061, PR China
| | - Xiaonong Zhang
- Key Laboratory of Polymer Ecomaterials, Jilin Biomedical Polymers Engineering Laboratory, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun, 130022, PR China
| | - Chunsheng Xiao
- Key Laboratory of Polymer Ecomaterials, Jilin Biomedical Polymers Engineering Laboratory, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun, 130022, PR China
| | - Bin Liu
- Hand and Foot Surgery Department, First Hospital of Jilin University, Xinmin Street, Changchun, 130061, PR China
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Louit A, Beaudet MJ, Pépin R, Berthod F. Differentiation of Human Induced Pluripotent Stem Cells into Mature and Myelinating Schwann Cells. Tissue Eng Part C Methods 2023; 29:134-143. [PMID: 36792923 DOI: 10.1089/ten.tec.2022.0186] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/17/2023] Open
Abstract
In the peripheral nervous system, Schwann cells (SCs) play a crucial role in axonal growth, metabolic support of neurons, and the production of myelin sheaths. Expansion of SCs after extraction from human or animal nerves is a long and often low-yielding process. We established a rapid cell culture method using a defined serum-free medium to differentiate human induced pluripotent stem cells (iPSCs) into SCs in only 21 days. The SC identity was characterized by expression of SRY-Box Transcription factor 10 (SOX10), S100b, glial fibrillary acidic protein (GFAP), P75, growth-associated protein 43 (GAP43), and early growth response 2 (EGR2) markers. The SC purity reached 87% as assessed by flow cytometry using the specific SOX10 marker, and 69% based on S100b expression. When SCs were cocultured with iPSC-derived motor neurons two-dimensionally or three-dimensionally (3D), they also expressed the markers of myelin MBP, MPZ, and gliomedin. Likewise, when they were seeded on the opposite side of a porous collagen sponge from motor neurons in the 3D model, they were able to migrate through it and colocalize with motor axons after 8 weeks of maturation. Moreover, they were shown by transmission electron microscopy to form myelin sheaths around motor axons. These results suggest that the use of autologous iPSC-derived SCs for clinical applications such as the repair of peripheral nerve damage, the treatment of spinal cord injuries, or for demyelinating diseases could be a valuable option. Impact Statement Peripheral nerve injuries can cause the complete paralysis of the upper or lower limbs, which considerably reduces the quality of life of patients. To repair this injury, many approaches have been developed by tissue engineering. Combining biomaterials with Schwann cells (SCs) has been shown to be an effective solution for stimulating nerve regeneration. However, the challenge faced concerns the strategy for obtaining autologous SCs to treat patients. A promising approach is to differentiate them from the patient's own cells, previously induced into pluripotent stem cells. We propose a fast culture method to generate functional SCs differentiated from induced pluripotent stem cells.
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Affiliation(s)
- Aurélie Louit
- LOEX, Centre de recherche du CHU de Québec-Université Laval, Quebec City, Quebec, Canada
| | - Marie-Josée Beaudet
- LOEX, Centre de recherche du CHU de Québec-Université Laval, Quebec City, Quebec, Canada
| | - Rémy Pépin
- LOEX, Centre de recherche du CHU de Québec-Université Laval, Quebec City, Quebec, Canada
| | - François Berthod
- LOEX, Centre de recherche du CHU de Québec-Université Laval, Quebec City, Quebec, Canada.,Department of Surgery, Faculty of Medicine, Université Laval, Quebec City, Quebec, Canada
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Benefit of Adjuvant Mesenchymal Stem Cell Transplantation to Critical-Sized Peripheral Nerve Defect Repair: A Systematic Review and Meta-Analysis of Preclinical Studies. J Clin Med 2023; 12:jcm12041306. [PMID: 36835844 PMCID: PMC9966712 DOI: 10.3390/jcm12041306] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/24/2022] [Revised: 01/29/2023] [Accepted: 01/31/2023] [Indexed: 02/10/2023] Open
Abstract
Critically sized nerve defects cause devastating life-long disabilities and require interposition for reconstruction. Additional local application of mesenchymal stem cells (MSCs) is considered promising to enhance peripheral nerve regeneration. To better understand the role of MSCs in peripheral nerve reconstruction, we performed a systematic review and meta-analysis of the effects of MSCs on critically sized segment nerve defects in preclinical studies. 5146 articles were screened following PRISMA guidelines using PubMed and Web of Science. A total of 27 preclinical studies (n = 722 rats) were included in the meta-analysis. The mean difference or the standardized mean difference with 95% confidence intervals for motor function, conduction velocity, and histomorphological parameters of nerve regeneration, as well as the degree of muscle atrophy, was compared in rats with critically sized defects and autologous nerve reconstruction treated with or without MSCs. The co-transplantation of MSCs increased the sciatic functional index (3.93, 95% CI 2.62 to 5.24, p < 0.00001) and nerve conduction velocity recovery (1.49, 95% CI 1.13 to 1.84, p = 0.009), decreased the atrophy of targeted muscles (gastrocnemius: 0.63, 95% CI 0.29 to 0.97 p = 0.004; triceps surae: 0.08, 95% CI 0.06 to 0.10 p = 0.71), and promoted the regeneration of injured axons (axon number: 1.10, 95% CI 0.78 to 1.42, p < 0.00001; myelin sheath thickness: 0.15, 95% CI 0.12 to 0.17, p = 0.28). Reconstruction of critically sized peripheral nerve defects is often hindered by impaired postoperative regeneration, especially in defects that require an autologous nerve graft. This meta-analysis indicates that additional application of MSC can enhance postoperative peripheral nerve regeneration in rats. Based on the promising results in vivo experiments, further studies are needed to demonstrate potential clinical benefits.
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Fu J, Li X, Jin F, Dong Y, Zhou H, Alhaskawi A, Wang Z, Lai J, Yao C, Ezzi SHA, Kota VG, Hasan Abdulla Hasan Abdulla M, Chen B, Lu H. The potential roles of dental pulp stem cells in peripheral nerve regeneration. Front Neurol 2023; 13:1098857. [PMID: 36712432 PMCID: PMC9874689 DOI: 10.3389/fneur.2022.1098857] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2022] [Accepted: 12/28/2022] [Indexed: 01/12/2023] Open
Abstract
Peripheral nerve diseases are significantly correlated with severe fractures or trauma and surgeries, leading to poor life quality and impairment of physical and mental health. Human dental pulp stem cells (DPSCs) are neural crest stem cells with a strong multi-directional differentiation potential and proliferation capacity that provide a novel cell source for nerve regeneration. DPSCs are easily extracted from dental pulp tissue of human permanent or deciduous teeth. DPSCs can express neurotrophic and immunomodulatory factors and, subsequently, induce blood vessel formation and nerve regeneration. Therefore, DPSCs yield valuable therapeutic potential in the management of peripheral neuropathies. With the purpose of summarizing the advances in DPSCs and their potential applications in peripheral neuropathies, this article reviews the biological characteristics of DPSCs in association with the mechanisms of peripheral nerve regeneration.
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Affiliation(s)
- Jing Fu
- 1Department of Stomatology, Affiliated Hangzhou Xixi Hospital, Zhejiang University School of Medicine, Hangzhou, China
| | - Xigong Li
- 2Department of Orthopedics, The First Affiliated Hospital, College of Medicine, Zhejiang University, Hangzhou, Zhejiang, China
| | - Feilu Jin
- 3Oral and Maxillofacial Surgery Department, The Second Affiliated Hospital of Zhejiang University, Hangzhou, Zhejiang, China
| | - Yanzhao Dong
- 2Department of Orthopedics, The First Affiliated Hospital, College of Medicine, Zhejiang University, Hangzhou, Zhejiang, China
| | - Haiying Zhou
- 2Department of Orthopedics, The First Affiliated Hospital, College of Medicine, Zhejiang University, Hangzhou, Zhejiang, China
| | - Ahmad Alhaskawi
- 2Department of Orthopedics, The First Affiliated Hospital, College of Medicine, Zhejiang University, Hangzhou, Zhejiang, China
| | - Zewei Wang
- 4Zhejiang University School of Medicine, Hangzhou, Zhejiang, China
| | - Jingtian Lai
- 4Zhejiang University School of Medicine, Hangzhou, Zhejiang, China
| | - Chengjun Yao
- 4Zhejiang University School of Medicine, Hangzhou, Zhejiang, China
| | | | - Vishnu Goutham Kota
- 2Department of Orthopedics, The First Affiliated Hospital, College of Medicine, Zhejiang University, Hangzhou, Zhejiang, China
| | | | - Bin Chen
- 2Department of Orthopedics, The First Affiliated Hospital, College of Medicine, Zhejiang University, Hangzhou, Zhejiang, China
| | - Hui Lu
- 2Department of Orthopedics, The First Affiliated Hospital, College of Medicine, Zhejiang University, Hangzhou, Zhejiang, China,6Alibaba-Zhejiang University Joint Research Center of Future Digital Healthcare, Zhejiang University, Hangzhou, Zhejiang, China,*Correspondence: Hui Lu ✉
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Zhang L, Xia D, Wang C, Gao F, Hu L, Li J, Jin L. Pleiotrophin attenuates the senescence of dental pulp stem cells. Oral Dis 2023; 29:195-205. [PMID: 34110666 DOI: 10.1111/odi.13929] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2021] [Revised: 05/18/2021] [Accepted: 05/26/2021] [Indexed: 12/24/2022]
Abstract
OBJECTIVES Pleiotrophin (PTN), a secreted extracellular matrix-associated protein, plays an important role in regulating the osteo/dentinogenic differentiation potential of dental pulp stem cells (DPSCs). Our previous study has demonstrated that PTN expression in young DPSCs was is 10-fold higher than that in aged DPSCs. However, the role of PTN on the in maintaining the stemness of senescent DPSCs remains unclear. The present study aimed to investigate the effect of PTN on senescent DPSCs in vitro. MATERIALS AND METHODS Dental pulp stem cells were isolated from human third molars. PTN was knocked down using short hairpin RNAs to study the role of PTN on the senescence of DPSCs. DPSCs with aging performance were obtained by a replicative senescence cell model was obtained by the long-term culture of DPSCs to the 15th passage in vitro (P15). We then investigated the effect of PTN on senescent DPSCs (P15 DPSCs). Real-time RT-PCR, western blotting, alizarin red staining, quantitative calcium analysis, SA-β-Gal staining, CFSE, and cell-counting kit-8 (CCK8) assays were used to study cellular senescence and function. RESULTS The depletion of PTN increased the ratio of SA-β-gal-positive cells, upregulated the expression of p16, and down-regulated the expression of TERT and p-p38. Furthermore, 50 pg/ml of PTN recombinant protein rescued these changes the altered ratio of SA-β-gal-positive cells, decreased the expression of p16, enhanced TERT and p-p38 expression, as well as telomere activity, caused by PTN depletion and long-term culture. The15th passage cells displayed typical aging characteristic, including high ratio of SA-β-gal-positive cells, increased aging-related gene expression, decreased proliferation rate, high level of Cyclin D expression, and impaired osteo/dentinogenic differentiation potential. However, 50 pg/ml of PTN recombinant protein could partially reverse these alteration rescue these changes. CONCLUSIONS The present study demonstrated that PTN could protect DPSCs from senescence by improving the proliferation and osteo/dentinogenic differentiation ability, probably through the p38 MAPK pathway.
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Affiliation(s)
- Lili Zhang
- Department of General Dentistry and Integrated Emergency Dental Care, Beijing Stomatological Hospital, Capital Medical University, Beijing, China
| | - Dengsheng Xia
- Department of General Dentistry and Integrated Emergency Dental Care, Beijing Stomatological Hospital, Capital Medical University, Beijing, China
| | - Chao Wang
- Laboratory of Molecular Signaling and Stem Cells Therapy, Beijing Key Laboratory of Tooth Regeneration and Function Reconstruction, Capital Medical University School of Stomatology, Beijing, China
| | - Feifei Gao
- Laboratory of Molecular Signaling and Stem Cells Therapy, Beijing Key Laboratory of Tooth Regeneration and Function Reconstruction, Capital Medical University School of Stomatology, Beijing, China
| | - Lei Hu
- Laboratory of Molecular Signaling and Stem Cells Therapy, Beijing Key Laboratory of Tooth Regeneration and Function Reconstruction, Capital Medical University School of Stomatology, Beijing, China.,Molecular Laboratory for Gene Therapy and Tooth Regeneration, Beijing Key Laboratory of Tooth Regeneration and Function Reconstruction, Capital Medical University School of Stomatology, Beijing, China
| | - Juan Li
- Department of Oral and Maxillofacial Surgery, Hebei General Hospital, Shijiazhuang, China
| | - Luyuan Jin
- Department of General Dentistry and Integrated Emergency Dental Care, Beijing Stomatological Hospital, Capital Medical University, Beijing, China.,Laboratory of Molecular Signaling and Stem Cells Therapy, Beijing Key Laboratory of Tooth Regeneration and Function Reconstruction, Capital Medical University School of Stomatology, Beijing, China
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10
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Badodekar N, Mishra S, Telang G, Chougule S, Bennur D, Thakur M, Vyas N. Angiogenic Potential and Its Modifying Interventions in Dental Pulp Stem Cells: a Systematic Review. REGENERATIVE ENGINEERING AND TRANSLATIONAL MEDICINE 2022. [DOI: 10.1007/s40883-022-00270-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/15/2022]
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11
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Zeng Z, Yang Y, Deng J, Saif Ur Rahman M, Sun C, Xu S. Physical Stimulation Combined with Biomaterials Promotes Peripheral Nerve Injury Repair. Bioengineering (Basel) 2022; 9:292. [PMID: 35877343 PMCID: PMC9311987 DOI: 10.3390/bioengineering9070292] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2022] [Revised: 06/11/2022] [Accepted: 06/13/2022] [Indexed: 11/17/2022] Open
Abstract
Peripheral nerve injury (PNI) is a clinical problem with high morbidity that can cause severe damage. Surgical suturing or implants are usually required due to the slow speed and numerous factors affecting repair after PNI. An autologous nerve graft is the gold standard for PNI repair among implants. However, there is a potential problem of the functional loss of the donor site. Therefore, tissue-engineered nerve biomaterials are often used to bridge the gap between nerve defects, but the therapeutic effect is insufficient. In order to enhance the repair effect of nerve biomaterials for PNI, researchers are seeking to combine various stimulation elements, such as the addition of biological factors such as nerve growth factors or physical factors such as internal microstructural modifications of catheters and their combined application with physical stimulation therapy. Physical stimulation therapy is safer, is more convenient, and has more practical features than other additive factors. Its feasibility and convenience, when combined with nerve biomaterials, provide broader application prospects for PNI repair, and has therefore become a research hot spot. This paper will review the combined application of physical stimulation and biomaterials in PNI repair in recent years to provide new therapeutic ideas for the future use of physical stimulation in PNI repair.
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Affiliation(s)
- Zhipeng Zeng
- Institute for Advanced Study, Shenzhen University, Shenzhen 518060, China; (Z.Z.); (M.S.U.R.)
- Key Laboratory of Optoelectronic Devices and Systems of Ministry of Education and Guangdong Province, College of Physics and Optoelectronic Engineering, Shenzhen University, Shenzhen 518060, China
- School of Sport Medicine and Rehabilitation, Beijing Sport University, Beijing 100084, China
| | - Yajing Yang
- National Cancer Center, National Clinical Research Center for Cancer, Cancer Hospital and Shenzhen Hospital, Chinese Academy of Medical Sciences, Peking Union Medical College, Shenzhen 518116, China;
| | - Junyong Deng
- Department of Rehabilitation, Second Affiliated Hospital of Nanchang University, Nanchang 330006, China;
| | - Muhammad Saif Ur Rahman
- Institute for Advanced Study, Shenzhen University, Shenzhen 518060, China; (Z.Z.); (M.S.U.R.)
- Key Laboratory of Optoelectronic Devices and Systems of Ministry of Education and Guangdong Province, College of Physics and Optoelectronic Engineering, Shenzhen University, Shenzhen 518060, China
| | - Chengmei Sun
- Institute for Advanced Study, Shenzhen University, Shenzhen 518060, China; (Z.Z.); (M.S.U.R.)
- Key Laboratory of Optoelectronic Devices and Systems of Ministry of Education and Guangdong Province, College of Physics and Optoelectronic Engineering, Shenzhen University, Shenzhen 518060, China
| | - Shanshan Xu
- Institute for Advanced Study, Shenzhen University, Shenzhen 518060, China; (Z.Z.); (M.S.U.R.)
- Key Laboratory of Optoelectronic Devices and Systems of Ministry of Education and Guangdong Province, College of Physics and Optoelectronic Engineering, Shenzhen University, Shenzhen 518060, China
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12
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Rao Z, Lin Z, Song P, Quan D, Bai Y. Biomaterial-Based Schwann Cell Transplantation and Schwann Cell-Derived Biomaterials for Nerve Regeneration. Front Cell Neurosci 2022; 16:926222. [PMID: 35836742 PMCID: PMC9273721 DOI: 10.3389/fncel.2022.926222] [Citation(s) in RCA: 15] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2022] [Accepted: 05/31/2022] [Indexed: 12/13/2022] Open
Abstract
Schwann cells (SCs) dominate the regenerative behaviors after peripheral nerve injury by supporting axonal regrowth and remyelination. Previous reports also demonstrated that the existence of SCs is beneficial for nerve regeneration after traumatic injuries in central nervous system. Therefore, the transplantation of SCs/SC-like cells serves as a feasible cell therapy to reconstruct the microenvironment and promote nerve functional recovery for both peripheral and central nerve injury repair. However, direct cell transplantation often leads to low efficacy, due to injection induced cell damage and rapid loss in the circulatory system. In recent years, biomaterials have received great attention as functional carriers for effective cell transplantation. To better mimic the extracellular matrix (ECM), many biodegradable materials have been engineered with compositional and/or topological cues to maintain the biological properties of the SCs/SCs-like cells. In addition, ECM components or factors secreted by SCs also actively contribute to nerve regeneration. Such cell-free transplantation approaches may provide great promise in clinical translation. In this review, we first present the current bio-scaffolds engineered for SC transplantation and their achievement in animal models and clinical applications. To this end, we focus on the physical and biological properties of different biomaterials and highlight how these properties affect the biological behaviors of the SCs/SC-like cells. Second, the SC-derived biomaterials are also reviewed and discussed. Finally, the relationship between SCs and functional biomaterials is summarized, and the trends of their future development are predicted toward clinical applications.
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Affiliation(s)
- Zilong Rao
- Guangdong Engineering Technology Research Centre for Functional Biomaterials, School of Materials Science and Engineering, Sun Yat-sen University, Guangzhou, China
| | - Zudong Lin
- PCFM Lab, GD HPPC Lab, School of Chemistry, Sun Yat-sen University, Guangzhou, China
| | - Panpan Song
- Guangdong Engineering Technology Research Centre for Functional Biomaterials, School of Materials Science and Engineering, Sun Yat-sen University, Guangzhou, China
| | - Daping Quan
- Guangdong Engineering Technology Research Centre for Functional Biomaterials, School of Materials Science and Engineering, Sun Yat-sen University, Guangzhou, China
| | - Ying Bai
- Guangdong Engineering Technology Research Centre for Functional Biomaterials, School of Materials Science and Engineering, Sun Yat-sen University, Guangzhou, China
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13
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Gao Y, Tian Z, Liu Q, Wang T, Ban LK, Lee HHC, Umezawa A, Almansour AI, Arumugam N, Kumar RS, Ye Q, Higuchi A, Chen H, Sung TC. Neuronal Cell Differentiation of Human Dental Pulp Stem Cells on Synthetic Polymeric Surfaces Coated With ECM Proteins. Front Cell Dev Biol 2022; 10:893241. [PMID: 35774224 PMCID: PMC9237518 DOI: 10.3389/fcell.2022.893241] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2022] [Accepted: 04/01/2022] [Indexed: 01/09/2023] Open
Abstract
Stem cells serve as an ideal source of tissue regeneration therapy because of their high stemness properties and regenerative activities. Mesenchymal stem cells (MSCs) are considered an excellent source of stem cell therapy because MSCs can be easily obtained without ethical concern and can differentiate into most types of cells in the human body. We prepared cell culture materials combined with synthetic polymeric materials of poly-N-isopropylacrylamide-co-butyl acrylate (PN) and extracellular matrix proteins to investigate the effect of cell culture biomaterials on the differentiation of dental pulp stem cells (DPSCs) into neuronal cells. The DPSCs cultured on poly-L-ornithine (PLO)-coated (TPS-PLO) plates and PLO and PN-coated (TPS-PLO-PN) plates showed excellent neuronal marker (βIII-tubulin and nestin) expression and the highest expansion rate among the culture plates investigated in this study. This result suggests that the TPS-PLO and TPS-PN-PLO plates maintained stable DPSCs proliferation and had good capabilities of differentiating into neuronal cells. TPS-PLO and TPS-PN-PLO plates may have high potentials as cell culture biomaterials for the differentiation of MSCs into several neural cells, such as cells in the central nervous system, retinal cells, retinal organoids and oligodendrocytes, which will expand the sources of cells for stem cell therapies in the future.
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Affiliation(s)
- Yan Gao
- School of Biomedical Engineering, The Eye Hospital of Wenzhou Medical University, Wenzhou Medical University, Wenzhou, China
| | - Zeyu Tian
- School of Biomedical Engineering, The Eye Hospital of Wenzhou Medical University, Wenzhou Medical University, Wenzhou, China
| | - Qian Liu
- School of Biomedical Engineering, The Eye Hospital of Wenzhou Medical University, Wenzhou Medical University, Wenzhou, China
| | - Ting Wang
- School of Biomedical Engineering, The Eye Hospital of Wenzhou Medical University, Wenzhou Medical University, Wenzhou, China
| | - Lee-Kiat Ban
- Department of Surgery, Hsinchu Cathay General Hospital, Hsinchu, Taiwan
| | - Henry Hsin-Chung Lee
- Department of Surgery, Hsinchu Cathay General Hospital, Hsinchu, Taiwan
- Graduate Institute of Translational and Interdisciplinary Medicine, National Central University, Taoyuan, Taiwan
| | - Akihiro Umezawa
- Department of Reproduction, National Center for Child Health and Development, Tokyo, Japan
| | | | - Natarajan Arumugam
- Department of Chemistry, College of Sciences, King Saud University, Riyadh, Saudi Arabia
| | - Raju Suresh Kumar
- Department of Chemistry, College of Sciences, King Saud University, Riyadh, Saudi Arabia
| | - Qingsong Ye
- Center of Regenerative Medicine, Renmin Hospital of Wuhan University, Wuhan, China
- School and Hospital of Stomatology, Wenzhou Medical University, Wenzhou, China
- *Correspondence: Qingsong Ye, ; Akon Higuchi, ; Hao Chen, ; Tzu-Cheng Sung,
| | - Akon Higuchi
- School of Biomedical Engineering, The Eye Hospital of Wenzhou Medical University, Wenzhou Medical University, Wenzhou, China
- Department of Reproduction, National Center for Child Health and Development, Tokyo, Japan
- Department of Chemical and Materials Engineering, National Central University, Taoyuan, Taiwan
- Department of Chemical Engineering and R&D Center for Membrane Technology, Chung Yuan Christian University, Taoyuan, Taiwan
- *Correspondence: Qingsong Ye, ; Akon Higuchi, ; Hao Chen, ; Tzu-Cheng Sung,
| | - Hao Chen
- School of Biomedical Engineering, The Eye Hospital of Wenzhou Medical University, Wenzhou Medical University, Wenzhou, China
- *Correspondence: Qingsong Ye, ; Akon Higuchi, ; Hao Chen, ; Tzu-Cheng Sung,
| | - Tzu-Cheng Sung
- School of Biomedical Engineering, The Eye Hospital of Wenzhou Medical University, Wenzhou Medical University, Wenzhou, China
- *Correspondence: Qingsong Ye, ; Akon Higuchi, ; Hao Chen, ; Tzu-Cheng Sung,
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14
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Multifunctional biomimetic hydrogel based on graphene nanoparticles and sodium alginate for peripheral nerve injury therapy. BIOMATERIALS ADVANCES 2022; 135:212727. [PMID: 35929199 DOI: 10.1016/j.bioadv.2022.212727] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/18/2021] [Revised: 02/14/2022] [Accepted: 02/19/2022] [Indexed: 12/13/2022]
Abstract
Peripheral nerve injury (PNI) caused by injury may influence the patients' lifelong mobility unless there is an appropriate treatment. Tissue engineering has become a hot field to replace traditional autologous nerve transplantation due to its low surgical damage and easy-to-industrial advantages. Graphene (GR) is a kind of carbon nanomaterial with good electrical and mechanical properties that satisfy the demand for a good tissue scaffold for nerve regeneration. Herein, a novel and biosafe hydrogel is fabricated by using graphene and sodium alginate (GR-SA) together. This hydrogel not only can mimic the nerve growth microenvironment but also can promote the expression of neurotrophic substances and growth factors. Additionally, GR-SA hydrogel can significantly reduce inflammatory factors. Moreover, the results of both in vitro and in vivo tests demonstrate that GR-SA hydrogel has a promising prospect in PNI regeneration.
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15
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ABSTRACTS (BY NUMBER). Tissue Eng Part A 2022. [DOI: 10.1089/ten.tea.2022.29025.abstracts] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022] Open
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16
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Expression of immunomodulatory and tissue regenerative biomarkers in human dental pulp derived-mesenchymal stem cells treated with curcumin: an in vitro study. Mol Biol Rep 2022; 49:4411-4420. [PMID: 35301656 DOI: 10.1007/s11033-022-07278-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2021] [Revised: 12/17/2021] [Accepted: 02/16/2022] [Indexed: 10/18/2022]
Abstract
BACKGROUND Human Dental pulp derived-mesenchymal stem cells (hDP-MSCs) have the capability of selfrenewal, multipotency, as well as immunosuppressive properties. They are ideal candidates for regenerating damaged dental tissue and treating inflammation-related diseases. However, methods (such as genetic variation) to improve the immunomodulatory and regenerative efficiency of MSCs in different diseases still need to be developed. Curcumin (CUR) is known for its broad applications in regenerative medicine and the treatment of inflammatory disorders via its anti-inflammatory and anti-oxidant effects. This study was conducted to investigate the effect and underlying mechanisms of CUR on the immunomodulatory and regenerative function of hDP-MSCs and whether treating these cells with CUR can improve therapeutic efficacy. METHODS AND RESULTS hDP-MSCs were isolated from dental pulp and then treated with CUR. Cell viability rate was observed in hDP-MSCs after treatment of CUR by MTT assay. Real-time quantitative (RT-PCR) was applied to estimate the expression of immunomodulatory and regenerative genes after treatment of CUR. The RT-PCR results showed that VEGF-A and STAT3 markers were up-regulated while HLA-G5 and VCAM-1 markers were down-regulated by CUR (20 µM) treatment in hDP-MSCs (P < 0.001). Besides, this research indicated that there were no significant changes in the expressions of RelA and DSPP after 48 h (P = 0.33, P = 1). CONCLUSION Our findings demonstrate that CUR can enhance the immunomodulatory and regenerative effects of hDP-MSCs and improve their therapeutic efficacy. These findings can give an understanding of the mechanism for improving restorative and immunomodulatory activity in hDP-MSCs by curcumin.
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17
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Transplanted neural lineage cells derived from dental pulp stem cells promote peripheral nerve regeneration. Hum Cell 2022; 35:462-471. [PMID: 34993901 DOI: 10.1007/s13577-021-00634-9] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2021] [Accepted: 10/10/2021] [Indexed: 01/09/2023]
Abstract
Cell therapy for peripheral nerve injury is a promising strategy as regenerative medicine that restores neurological function. However, challenges remain in producing suitable and sufficient amounts of autologous cells for promoting nerve regeneration. This study aimed to identify the characteristics of neural lineage cells (NLCs) differentiated from dental pulp stem cells (DPSCs) and reveal their effect on functional recovery and nerve regeneration after cell transplantation into an immunodeficient rat using a nerve guide conduit. Here we report a protocol of neural induction in monolayer culture and characterize NLCs in vitro. Furthermore, NLCs were transplanted into an immunodeficient rat model with a 10-mm sciatic nerve defect, and cell survival and differentiation were investigated in vivo. Outcomes of nerve regeneration were also assessed using the remyelinated axon numbers, myelin sheath thickness, electrophysiological activities, and gastrocnemius muscle mass. NLCs comprised neuronal, astrocyte, oligodendrocyte, and neural crest lineage cells. NLCs enhanced the activities of endothelial cells, Schwann cells, and neurons in a paracrine-dependent manner in vitro. At 2 weeks post-transplantation, numerous transplanted NLCs differentiated into platelet-derived growth factor receptor alpha (PDGFRα) + oligodendrocyte progenitor cells (OPCs) and a few PDGFRα + /p75 neurotrophin receptor + Schwann cell-like cells derived from OPCs were observed. At 12 weeks post-transplantation, human Schwann cell-like cells survived, and axon growth, remyelination, electrophysiological activities, and muscle atrophy were improved. This study demonstrates the broad application of our protocol of neural induction of DPSCs and portrays the efficacy of transplantation of NLCs derived from human DPSCs as a promising strategy for peripheral nerve regeneration.
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18
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Classification and Characteristics of Mesenchymal Stem Cells and Its Potential Therapeutic Mechanisms and Applications against Ischemic Stroke. Stem Cells Int 2021; 2021:2602871. [PMID: 34795764 PMCID: PMC8595011 DOI: 10.1155/2021/2602871] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2021] [Accepted: 10/11/2021] [Indexed: 12/13/2022] Open
Abstract
Ischemic stroke is a serious cerebral disease that often induces death and long-term disability. As a currently available therapy for recanalization after ischemic stroke, thrombolysis, including intravenous thrombolysis and endovascular therapy, still cannot be applicable to all patients due to the narrow time window. Mesenchymal stem cell (MSC) transplantation therapy, which can trigger neuronal regeneration and repair, has been considered as a significant advance in treatment of ischemic stroke. MSC transplantation therapy has exhibited its potential to improve the neurological function in ischemic stroke. Our review describes the current progress and future perspective of MSC transplantation therapy in ischemic stroke treatment, including cell types, transplantation approaches, therapeutic mechanisms, and preliminary clinical trials of MSC transplantation, for providing us an update role of MSC transplantation in ischemic stroke treatment.
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19
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Yan M, Nada OA, Fu LL, Li DZ, Feng HC, Chen LM, Gosau M, Friedrich RE, Smeets R. A comparative study on the secretion of various cytokines by pulp stem cells at different passages and their neurogenic potential. Biomed Pap Med Fac Univ Palacky Olomouc Czech Repub 2021; 166:161-167. [PMID: 34747415 DOI: 10.5507/bp.2021.058] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2021] [Accepted: 10/01/2021] [Indexed: 11/23/2022] Open
Abstract
AIMS By measuring the extent of cytokines secreted by human dental pulp stem cells (hDPSCs) from passages 2 through 10, the optimal passage of hDPSCs was determined. This offers a potential theoretical basis for the treatment of neurological disorders. METHOD After isolation and culture of hDPSCs from human teeth, the morphological features of the cells were observed under an inverted microscope. hDPSCs were identified by their immunophenotypes and their multiple differentiation capability. Cytokine concentrations secreted in the supernatants at passages 2-10 were detected by ELISA. RESULTS hDPSCs were viewed as fusiform or polygonal in shape, with a bulging cell body, homogenized cytoplasm, and a clear nucleus. Moreover, they could differentiate into neuroblasts in vitro. hDPSCs at passage 3 were positive for CD29 (91.5%), CD73 (94.8%) and CD90 (96.7%), but negative for the hematopoietic markers CD34 (0.13%). ELISA results showed that hDPSCs at passage 3 had the highest secretion levels of vascular endothelial growth factor (VEGF), brain-derived neurotrophic factor (BDNF), and nerve growth factor (NGF), with the highest secretion level of Neurotrophin-3 (NT-3) being at passage 2. CONCLUSION hDPSCs have steady biological features of stem cells and exhibit optimal proliferation potential. hDPSCs at different passages have different capacities in the secretion of VEGF, BDNF, NGF, and NT-3. In conclusion cytokines secreted by hDPSCs may prove to be appropriate in the treatment of neurological diseases.
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Affiliation(s)
- Ming Yan
- Department of Oral and Maxillofacial Surgery, University Medical Center Hamburg-Eppendorf, Hamburg 20246, Germany.,Department of Oral and Maxillofacial Surgery, Guiyang Hospital of Stomatology, Guiyang, 050017, PR China
| | - Ola A Nada
- Oral Biology Department, Faculty of Dentistry, Alexandria University, Alexandria, 21500, Egypt
| | - Ling-Ling Fu
- Department of Oral and Maxillofacial Surgery, University Medical Center Hamburg-Eppendorf, Hamburg 20246, Germany.,Department of Oral and Maxillofacial Surgery, Guiyang Hospital of Stomatology, Guiyang, 050017, PR China
| | - Dong-Zhen Li
- Department of Oral and Maxillofacial Surgery, Hebei Eye Hospital, Xingtai, 054000, China
| | - Hong-Chao Feng
- Department of Oral and Maxillofacial Surgery, Guiyang Hospital of Stomatology, Guiyang, 050017, PR China
| | - Li-Ming Chen
- Department of Oral and Maxillofacial Surgery, Guiyang Hospital of Stomatology, Guiyang, 050017, PR China
| | - Martin Gosau
- Department of Oral and Maxillofacial Surgery, University Medical Center Hamburg-Eppendorf, Hamburg 20246, Germany
| | - Reinhard E Friedrich
- Department of Oral and Maxillofacial Surgery, University Medical Center Hamburg-Eppendorf, Hamburg 20246, Germany
| | - Ralf Smeets
- Department of Oral and Maxillofacial Surgery, University Medical Center Hamburg-Eppendorf, Hamburg 20246, Germany
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20
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Engineered neural tissue made using clinical-grade human neural stem cells supports regeneration in a long gap peripheral nerve injury model. Acta Biomater 2021; 135:203-213. [PMID: 34455110 DOI: 10.1016/j.actbio.2021.08.030] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2021] [Revised: 08/08/2021] [Accepted: 08/19/2021] [Indexed: 12/11/2022]
Abstract
A surgical autograft remains the clinical gold-standard therapy for gap repair following peripheral nerve injury, however, challenges remain with achieving full recovery and reducing donor-site morbidity. Engineered Neural Tissue (EngNT) manufactured using differentiated CTX0E03 human stem cells (EngNT-CTX) has been developed as a potential 'off the shelf' allogeneic autograft replacement. Ensheathed within a collagen membrane developed to facilitate biomechanical integration, EngNT-CTX was used to bridge a critical-length (15 mm) sciatic nerve gap injury in athymic nude rats. The effectiveness of EngNT-CTX was compared to an autograft using outcome measures that assessed neuronal regeneration and functional recovery at 8 and 16 weeks. At both time points EngNT-CTX restored electrophysiological nerve conduction and functional reinnervation of downstream muscles to the same extent as the autograft. Histological analysis confirmed that more motor neurons had successfully regenerated through the repair in EngNT-CTX in comparison to the autograft at 8 weeks, which was consistent with the electrophysiology, with the number of motor neurons similar in both groups by 16 weeks. The total number of neurons (motor + sensory) was greater in autografts than EngNT-CTX at 8 weeks, indicating that more sensory fibres may have sprouted in those animals at this time point. In conclusion, this study provides evidence to support the effectiveness of EngNT-CTX as a replacement for the nerve autograft, as the functional regeneration assessed through histological and electrophysiological outcome measures demonstrated equivalent performance. STATEMENT OF SIGNIFICANCE: Following injury a peripheral nerve has the capacity to regenerate naturally, however, in the case of severe damage where there is a gap the current gold-standard microsurgical intervention is an autograft. This is associated with serious limitations including tissue availability and donor-site morbidity. Tissue engineering aims to overcome these limitations by building a construct from therapeutic cells and biomaterials as a means to mimic and replace the autograft. In this study engineered neural tissue (EngNT) was manufactured using human stem cells (CTX) to bridge a critical-length gap injury. When compared to the autograft in an animal model the EngNT-CTX construct restored function to an equivalent or greater extent.
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21
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Al Madhoun A, Sindhu S, Haddad D, Atari M, Ahmad R, Al-Mulla F. Dental Pulp Stem Cells Derived From Adult Human Third Molar Tooth: A Brief Review. Front Cell Dev Biol 2021; 9:717624. [PMID: 34712658 PMCID: PMC8545885 DOI: 10.3389/fcell.2021.717624] [Citation(s) in RCA: 26] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2021] [Accepted: 09/15/2021] [Indexed: 12/13/2022] Open
Abstract
The fields of regenerative medicine and stem cell-based tissue engineering have the potential of treating numerous tissue and organ defects. The use of adult stem cells is of particular interest when it comes to dynamic applications in translational medicine. Recently, dental pulp stem cells (DPSCs) have been traced in third molars of adult humans. DPSCs have been isolated and characterized by several groups. DPSCs have promising characteristics including self-renewal capacity, rapid proliferation, colony formation, multi-lineage differentiation, and pluripotent gene expression profile. Nevertheless, genotypic, and phenotypic heterogeneities have been reported for DPSCs subpopulations which may influence their therapeutic potentials. The underlying causes of DPSCs’ heterogeneity remain poorly understood; however, their heterogeneity emerges as a consequence of an interplay between intrinsic and extrinsic cellular factors. The main objective of the manuscript is to review the current literature related to the human DPSCs derived from the third molar, with a focus on their physiological properties, isolation procedures, culture conditions, self-renewal, proliferation, lineage differentiation capacities and their prospective advances use in pre-clinical and clinical applications.
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Affiliation(s)
- Ashraf Al Madhoun
- Department of Genetics and Bioinformatics, Dasman Diabetes Institute, Dasman, Kuwait.,Department of Animal and Imaging Core Facilities, Dasman Diabetes Institute, Dasman, Kuwait
| | - Sardar Sindhu
- Department of Animal and Imaging Core Facilities, Dasman Diabetes Institute, Dasman, Kuwait.,Department of Immunology and Microbiology, Dasman Diabetes Institute, Dasman, Kuwait
| | - Dania Haddad
- Department of Genetics and Bioinformatics, Dasman Diabetes Institute, Dasman, Kuwait
| | - Maher Atari
- Biointelligence Technology Systems S.L., Barcelona, Spain
| | - Rasheed Ahmad
- Department of Immunology and Microbiology, Dasman Diabetes Institute, Dasman, Kuwait
| | - Fahd Al-Mulla
- Department of Genetics and Bioinformatics, Dasman Diabetes Institute, Dasman, Kuwait
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22
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Peripheral Nerve Regeneration Using Different Germ Layer-Derived Adult Stem Cells in the Past Decade. Behav Neurol 2021; 2021:5586523. [PMID: 34539934 PMCID: PMC8448597 DOI: 10.1155/2021/5586523] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2021] [Revised: 07/27/2021] [Accepted: 08/09/2021] [Indexed: 12/15/2022] Open
Abstract
Peripheral nerve injuries (PNIs) are some of the most common types of traumatic lesions affecting the nervous system. Although the peripheral nervous system has a higher regenerative ability than the central nervous system, delayed treatment is associated with disturbances in both distal sensory and functional abilities. Over the past decades, adult stem cell-based therapies for peripheral nerve injuries have drawn attention from researchers. This is because various stem cells can promote regeneration after peripheral nerve injuries by differentiating into neural-line cells, secreting various neurotrophic factors, and regulating the activity of in situ Schwann cells (SCs). This article reviewed research from the past 10 years on the role of stem cells in the repair of PNIs. We concluded that adult stem cell-based therapies promote the regeneration of PNI in various ways.
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23
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des Rieux A. Stem cells and their extracellular vesicles as natural and bioinspired carriers for the treatment of neurological disorders. Curr Opin Colloid Interface Sci 2021. [DOI: 10.1016/j.cocis.2021.101460] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
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24
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'EngNT' - Engineering live neural tissue for nerve replacement. Emerg Top Life Sci 2021; 5:699-703. [PMID: 34297065 PMCID: PMC8726050 DOI: 10.1042/etls20210085] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2021] [Revised: 07/06/2021] [Accepted: 07/13/2021] [Indexed: 11/17/2022]
Abstract
Peripheral nerve injury can result in severe long-term disability and current clinical approaches for repairing large gaps rely on the nerve autograft. Engineered Neural Tissue (EngNT) has been developed to provide living aligned therapeutic cells in a stabilised collagen hydrogel, mimicking the key features of the autograft. This Perspective article will introduce the field and discuss the current stage of translation, highlighting the key opportunities for commercial and clinical development.
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Coy R, Berg M, Phillips JB, Shipley RJ. Modelling-informed cell-seeded nerve repair construct designs for treating peripheral nerve injuries. PLoS Comput Biol 2021; 17:e1009142. [PMID: 34237052 PMCID: PMC8266098 DOI: 10.1371/journal.pcbi.1009142] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2020] [Accepted: 06/02/2021] [Indexed: 11/19/2022] Open
Abstract
Millions of people worldwide are affected by peripheral nerve injuries (PNI), involving billions of dollars in healthcare costs. Common outcomes for patients include paralysis and loss of sensation, often leading to lifelong pain and disability. Engineered Neural Tissue (EngNT) is being developed as an alternative to the current treatments for large-gap PNIs that show underwhelming functional recovery in many cases. EngNT repair constructs are composed of a stabilised hydrogel cylinder, surrounded by a sheath of material, to mimic the properties of nerve tissue. The technology also enables the spatial seeding of therapeutic cells in the hydrogel to promote nerve regeneration. The identification of mechanisms leading to maximal nerve regeneration and to functional recovery is a central challenge in the design of EngNT repair constructs. Using in vivo experiments in isolation is costly and time-consuming, offering a limited insight on the mechanisms underlying the performance of a given repair construct. To bridge this gap, we derive a cell-solute model and apply it to the case of EngNT repair constructs seeded with therapeutic cells which produce vascular endothelial growth factor (VEGF) under low oxygen conditions to promote vascularisation in the construct. The model comprises a set of coupled non-linear diffusion-reaction equations describing the evolving cell population along with its interactions with oxygen and VEGF fields during the first 24h after transplant into the nerve injury site. This model allows us to evaluate a wide range of repair construct designs (e.g. cell-seeding strategy, sheath material, culture conditions), the idea being that designs performing well over a short timescale could be shortlisted for in vivo trials. In particular, our results suggest that seeding cells beyond a certain density threshold is detrimental regardless of the situation considered, opening new avenues for future nerve tissue engineering.
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Affiliation(s)
- Rachel Coy
- Department of Mechanical Engineering, UCL, London, United Kingdom
- Center for Nerve Engineering, UCL, London, United Kingdom
| | - Maxime Berg
- Department of Mechanical Engineering, UCL, London, United Kingdom
- Center for Nerve Engineering, UCL, London, United Kingdom
- * E-mail:
| | - James B. Phillips
- Center for Nerve Engineering, UCL, London, United Kingdom
- Department of Pharmacology, School of Pharmacy, UCL, London, United Kingdom
| | - Rebecca J. Shipley
- Department of Mechanical Engineering, UCL, London, United Kingdom
- Center for Nerve Engineering, UCL, London, United Kingdom
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26
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Song S, McConnell KW, Amores D, Levinson A, Vogel H, Quarta M, Rando TA, George PM. Electrical stimulation of human neural stem cells via conductive polymer nerve guides enhances peripheral nerve recovery. Biomaterials 2021; 275:120982. [PMID: 34214785 DOI: 10.1016/j.biomaterials.2021.120982] [Citation(s) in RCA: 31] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2021] [Revised: 06/02/2021] [Accepted: 06/17/2021] [Indexed: 01/09/2023]
Abstract
Severe peripheral nerve injuries often result in permanent loss of function of the affected limb. Current treatments are limited by their efficacy in supporting nerve regeneration and behavioral recovery. Here we demonstrate that electrical stimulation through conductive nerve guides (CNGs) enhances the efficacy of human neural progenitor cells (hNPCs) in treating a sciatic nerve transection in rats. Electrical stimulation strengthened the therapeutic potential of NPCs by upregulating gene expression of neurotrophic factors which are critical in augmenting synaptic remodeling, nerve regeneration, and myelination. Electrically-stimulated hNPC-containing CNGs are significantly more effective in improving sensory and motor functions starting at 1-2 weeks after treatment than either treatment alone. Electrophysiology and muscle assessment demonstrated successful re-innervation of the affected target muscles in this group. Furthermore, histological analysis highlighted an increased number of regenerated nerve fibers with thicker myelination in electrically-stimulated hNPC-containing CNGs. The elevated expression of tyrosine kinase receptors (Trk) receptors, known to bind to neurotrophic factors, indicated the long-lasting effect from electrical stimulation on nerve regeneration and distal nerve re-innervation. These data suggest that electrically-enhanced stem cell-based therapy provides a regenerative rehabilitative approach to promote peripheral nerve regeneration and functional recovery.
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Affiliation(s)
- Shang Song
- Department of Neurology and Neurological Sciences, Stanford University School of Medicine, Stanford, CA, USA
| | - Kelly W McConnell
- Department of Neurology and Neurological Sciences, Stanford University School of Medicine, Stanford, CA, USA
| | - Danielle Amores
- Department of Neurology and Neurological Sciences, Stanford University School of Medicine, Stanford, CA, USA
| | - Alexa Levinson
- Department of Neurology and Neurological Sciences, Stanford University School of Medicine, Stanford, CA, USA
| | - Hannes Vogel
- Department of Pathology, Stanford University, Stanford, CA, USA
| | - Marco Quarta
- Department of Neurology and Neurological Sciences, Stanford University School of Medicine, Stanford, CA, USA; Paul F. Glenn Laboratories for the Biology of Aging, Stanford University School of Medicine, Stanford, CA, USA; Center for Tissue Regeneration, Restoration and Repair, Veterans Affairs Hospital, Palo Alto, CA, USA
| | - Thomas A Rando
- Department of Neurology and Neurological Sciences, Stanford University School of Medicine, Stanford, CA, USA; Paul F. Glenn Laboratories for the Biology of Aging, Stanford University School of Medicine, Stanford, CA, USA; Center for Tissue Regeneration, Restoration and Repair, Veterans Affairs Hospital, Palo Alto, CA, USA
| | - Paul M George
- Department of Neurology and Neurological Sciences, Stanford University School of Medicine, Stanford, CA, USA; Stanford Stroke Center and Stanford University School of Medicine, Stanford, CA, USA.
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27
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Yin JY, Luo XH, Feng WQ, Miao SH, Ning TT, Lei Q, Jiang T, Ma DD. Multidifferentiation potential of dental-derived stem cells. World J Stem Cells 2021; 13:342-365. [PMID: 34136070 PMCID: PMC8176842 DOI: 10.4252/wjsc.v13.i5.342] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/21/2020] [Revised: 03/10/2021] [Accepted: 04/05/2021] [Indexed: 02/06/2023] Open
Abstract
Tooth-related diseases and tooth loss are widespread and are a major public health issue. The loss of teeth can affect chewing, speech, appearance and even psychology. Therefore, the science of tooth regeneration has emerged, and attention has focused on tooth regeneration based on the principles of tooth development and stem cells combined with tissue engineering technology. As undifferentiated stem cells in normal tooth tissues, dental mesenchymal stem cells (DMSCs), which are a desirable source of autologous stem cells, play a significant role in tooth regeneration. Researchers hope to reconstruct the complete tooth tissues with normal functions and vascularization by utilizing the odontogenic differentiation potential of DMSCs. Moreover, DMSCs also have the ability to differentiate towards cells of other tissue types due to their multipotency. This review focuses on the multipotential capacity of DMSCs to differentiate into various tissues, such as bone, cartilage, tendon, vessels, neural tissues, muscle-like tissues, hepatic-like tissues, eye tissues and glands and the influence of various regulatory factors, such as non-coding RNAs, signaling pathways, inflammation, aging and exosomes, on the odontogenic/osteogenic differentiation of DMSCs in tooth regeneration. The application of DMSCs in regenerative medicine and tissue engineering will be improved if the differentiation characteristics of DMSCs can be fully utilized, and the factors that regulate their differentiation can be well controlled.
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Affiliation(s)
- Jing-Yao Yin
- Department of Stomatology, Nanfang Hospital, Southern Medical University, Guangzhou 510515, Guangdong Province, China
| | - Xing-Hong Luo
- Department of Stomatology, Nanfang Hospital, Southern Medical University, Guangzhou 510515, Guangdong Province, China
| | - Wei-Qing Feng
- Department of Stomatology, Nanfang Hospital, Southern Medical University, Guangzhou 510515, Guangdong Province, China
| | - Sheng-Hong Miao
- Department of Stomatology, Nanfang Hospital, Southern Medical University, Guangzhou 510515, Guangdong Province, China
| | - Ting-Ting Ning
- Department of Endodontics, Stomatological Hospital, Southern Medical University, Guangzhou 510280, Guangdong Province, China
| | - Qian Lei
- Department of Stomatology, Nanfang Hospital, Southern Medical University, Guangzhou 510515, Guangdong Province, China
| | - Tao Jiang
- Department of Stomatology, Nanfang Hospital, Southern Medical University, Guangzhou 510515, Guangdong Province, China
| | - Dan-Dan Ma
- Department of Endodontics, Stomatological Hospital, Southern Medical University, Guangzhou 510280, Guangdong Province, China
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28
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Powell R, Eleftheriadou D, Kellaway S, Phillips JB. Natural Biomaterials as Instructive Engineered Microenvironments That Direct Cellular Function in Peripheral Nerve Tissue Engineering. Front Bioeng Biotechnol 2021; 9:674473. [PMID: 34113607 PMCID: PMC8185204 DOI: 10.3389/fbioe.2021.674473] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2021] [Accepted: 04/16/2021] [Indexed: 12/25/2022] Open
Abstract
Nerve tissue function and regeneration depend on precise and well-synchronised spatial and temporal control of biological, physical, and chemotactic cues, which are provided by cellular components and the surrounding extracellular matrix. Therefore, natural biomaterials currently used in peripheral nerve tissue engineering are selected on the basis that they can act as instructive extracellular microenvironments. Despite emerging knowledge regarding cell-matrix interactions, the exact mechanisms through which these biomaterials alter the behaviour of the host and implanted cells, including neurons, Schwann cells and immune cells, remain largely unclear. Here, we review some of the physical processes by which natural biomaterials mimic the function of the extracellular matrix and regulate cellular behaviour. We also highlight some representative cases of controllable cell microenvironments developed by combining cell biology and tissue engineering principles.
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Affiliation(s)
- Rebecca Powell
- UCL Centre for Nerve Engineering, University College London, London, United Kingdom.,Department of Pharmacology, UCL School of Pharmacy, University College London, London, United Kingdom
| | - Despoina Eleftheriadou
- UCL Centre for Nerve Engineering, University College London, London, United Kingdom.,Department of Pharmacology, UCL School of Pharmacy, University College London, London, United Kingdom.,Department of Mechanical Engineering, University College London, London, United Kingdom
| | - Simon Kellaway
- UCL Centre for Nerve Engineering, University College London, London, United Kingdom.,Department of Pharmacology, UCL School of Pharmacy, University College London, London, United Kingdom
| | - James B Phillips
- UCL Centre for Nerve Engineering, University College London, London, United Kingdom.,Department of Pharmacology, UCL School of Pharmacy, University College London, London, United Kingdom
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29
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Sabzalizadeh M, Afarinesh MR, Esmaeili-Mahani S, Farsinejad A, Derakhshani A, Arabzadeh E, Sheibani V. Transplantation of rat dental pulp stem cells facilities post-lesion recovery in the somatosensory whisker cortex of male Wistar rats. Brain Res Bull 2021; 173:150-161. [PMID: 33964348 DOI: 10.1016/j.brainresbull.2021.04.028] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2020] [Revised: 04/26/2021] [Accepted: 04/30/2021] [Indexed: 11/17/2022]
Abstract
Damage to somatosensory "barrel" cortex reduces the rats' behavioral sensitivity in discrimination of tactile stimuli. Here, we examined how transplantation of stem cells into the lesioned barrel cortex can help in recovery of sensory capacities. We induced mechanical lesions in the right barrel cortex area of male rats. Three days after lesioning, rats received one of three transplantation types: un-differentiated dental pulp stem cells (U-DPSCs) or differentiated dental pulp stem cells (D-DPSCs), or cell medium (vehicle). A fourth group of rats were control without any Surgery. For 4 consecutive weeks, starting one week after transplantation, we evaluated the rats' preference to explore novel textures as a measure of sensory discrimination ability, also measured the expression of glial fibrillary acidic protein (GFAP), Olig 2, nestin, neuronal nuclei (NeuN), brain-derived neurotrophic factor (BDNF) and neuroligin1 by immunohistochemistry and western blotting. Unilateral mechanical lesion decreased the rats' preferential exploration of novel textures compared to the control group across the 4-week behavioral tests. Following stem cell therapy, the rats' performance significantly improved at week 2-4 compared to the vehicle group. Compared to the control group, there was a significant decrease in the expression of nestin, NeuN, Olig 2, BDNF, neuroligin1 and a significant increase in the expression of GFAP in the vehicle group. The expression of the neural markers was significantly higher in DPSCs compared with the vehicle group whereas GFAP level was lower in DPSCs compared to vehicle. We found that DPSCs therapy affected a range of neuronal markers in the barrel cortex post lesion, and improved the rats' recovery for sensory discrimination.
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Affiliation(s)
- Mansoureh Sabzalizadeh
- Neuroscience Research Center, Institute of Neuropharmachology, Kerman University of Medical Sciences, Kerman, Iran
| | - Mohammad Reza Afarinesh
- Neuroscience Research Center, Institute of Neuropharmachology, Kerman University of Medical Sciences, Kerman, Iran; Cognitive Neuroscience Research Center, Institute of Neuropharmachology, Kerman University of Medical Sciences, Kerman, Iran.
| | - Saeed Esmaeili-Mahani
- Department of Biology, Faculty of Sciences, Shahid Bahonar University of Kerman, Kerman, Iran
| | - Alireza Farsinejad
- Cell Therapy and Regenerative Medicine Comprehensive Center, Kerman University of Medical Sciences, Kerman, Iran
| | - Ali Derakhshani
- Hydatid Disease Research Center, Kerman University of Medical Sciences, Kerman, Iran
| | - Ehsan Arabzadeh
- Cognitive Neuroscience Research Center, Institute of Neuropharmachology, Kerman University of Medical Sciences, Kerman, Iran; Eccles Institute of Neuroscience, John Curtin School of Medical Research, Australian National University, Canberra, ACT, Australia
| | - Vahid Sheibani
- Neuroscience Research Center, Institute of Neuropharmachology, Kerman University of Medical Sciences, Kerman, Iran; Cognitive Neuroscience Research Center, Institute of Neuropharmachology, Kerman University of Medical Sciences, Kerman, Iran.
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30
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Muangsanit P, Roberton V, Costa E, Phillips JB. Engineered aligned endothelial cell structures in tethered collagen hydrogels promote peripheral nerve regeneration. Acta Biomater 2021; 126:224-237. [PMID: 33766800 DOI: 10.1016/j.actbio.2021.03.039] [Citation(s) in RCA: 24] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2020] [Revised: 03/01/2021] [Accepted: 03/16/2021] [Indexed: 02/07/2023]
Abstract
Vascularisation is important in nerve tissue engineering to provide blood supply and nutrients for long-term survival of implanted cells. Furthermore, blood vessels in regenerating nerves have been shown to serve as tracks for Schwann cells to migrate along and thus form Bands of Büngner which promote axonal regeneration. In this study, we have developed tissue-engineered constructs containing aligned endothelial cells, or co-cultures of both endothelial cells and Schwann cells to test whether these structures could promote regeneration across peripheral nerve gaps. Type I rat tail collagen gels containing HUVECs (Human Umbilical Vein Endothelial Cells, 4 × 106 cells/ml) were cast in perforated tethering silicone conduits to facilitate cellular self-alignment and tube formation for 4 days of culture. For co-culture constructs, optimal tube formation and cellular alignment was achieved with a ratio of 4:0.5 × 106 cells/ml (HUVECs:Schwann cells). An in vivo test of the engineered constructs to bridge a 10 mm gap in rat sciatic nerves for 4 weeks revealed that constructs containing only HUVECs significantly promoted axonal regeneration and vascularisation across the gap, as compared to conventional aligned Schwann cell constructs and those containing co-cultured HUVECs and Schwann cells. Our results suggest that tissue-engineered constructs containing aligned endothelial cells within collagen matrix could be good candidates to treat peripheral nerve injury. STATEMENT OF SIGNIFICANCE: Nerve tissue engineering provides a potential way to overcome the limitations associated with current clinical grafting techniques for the repair of severe peripheral nerve injuries. However, the therapeutic cells within engineered nerve tissue require effective vascularisation in order to survive. This work therefore aimed to develop engineered nerve constructs containing aligned tube-like structures made from endothelial cells. Not only did this provide a method to improve vascularisation, it demonstrated for the first time that aligned endothelial cells can outperform Schwann cells in promoting nerve regeneration in the rat sciatic nerve model. This has introduced the concept of developing pre-vascularised engineered nerve tissues, and indicated the potential usefulness of endothelial cell structures in tissue engineering for peripheral nerve repair.
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Affiliation(s)
- Papon Muangsanit
- Department of Biomaterials and Tissue Engineering, Eastman Dental Institute, University College London, 256 Grays Inn Rd, London WC1X8LD, United Kingdom; UCL Centre for Nerve Engineering, University College London, London, United Kingdom; Department of Pharmacology, UCL School of Pharmacy, University College London, 29-39 Brunswick Square, Bloomsbury, London WC1N 1AX, United Kingdom.
| | - Victoria Roberton
- UCL Centre for Nerve Engineering, University College London, London, United Kingdom; Department of Pharmacology, UCL School of Pharmacy, University College London, 29-39 Brunswick Square, Bloomsbury, London WC1N 1AX, United Kingdom
| | - Eleni Costa
- Department of Pharmacology, UCL School of Pharmacy, University College London, 29-39 Brunswick Square, Bloomsbury, London WC1N 1AX, United Kingdom
| | - James B Phillips
- UCL Centre for Nerve Engineering, University College London, London, United Kingdom; Department of Pharmacology, UCL School of Pharmacy, University College London, 29-39 Brunswick Square, Bloomsbury, London WC1N 1AX, United Kingdom
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31
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Ye K, Yu J, Li L, Wang H, Tang B, Ni W, Zhou J, Ling Y, Lu X, Niu D, Ramalingam M, Hu J. Microvesicles from Schwann-Like Cells as a New Biomaterial Promote Axonal Growth. J Biomed Nanotechnol 2021; 17:291-302. [PMID: 33785099 DOI: 10.1166/jbn.2021.3037] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
Schwann cells promote axonal regeneration following peripheral nerve injury. However, in terms of clinical treatment, the therapeutic effects of Schwann cells are limited by their source. The transmission of microvesicles from neuroglia cells to axons is a novel communication mechanism in axon regeneration.To evaluate the effect of microvesicles released from Schwann-like cells on axonal regeneration, neural stem cells derived from human embryonic stem cells differentiated into Schwann-like cells, which presented a typical morphology and characteristics similar to those of schwann cells. The glial markers like MBP, P0, P75NTR, PMP-22, GFAP, HNK-1 and S100 were upregulated, whereas the neural stem markers like NESTIN, SOX1 and SOX2 were significantly downregulated in schwann-like cells. Microvesicles enhanced axonal growth in dorsal root ganglia neurons and regulated GAP43 expression in neuron-like cells (N2A and PC12) through the PTEN/PI3 K/Akt signaling pathway. A 5 mm section of sciatic nerve was transected in Sprague-Dawley rats. With microvesicles transplantation, regenerative nerves were evaluated after 6 weeks. Microvesicles increased sciatic function index scores, delayed gastrocnemius muscle atrophy and elevated βIII-tubulin-labeled axons in vivo. Schwann-like cells serve as a convenient source and promote axonal growth by secreting microvesicles, which may potentially be used as bioengineering materials for nerve tissue repair.
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Affiliation(s)
- Kai Ye
- Jiangsu Key Laboratory of Medical Science and Laboratory Medicine, School of Medicine, Jiangsu University, Zhenjiang 212013, Jiangsu, China
| | - Jiahong Yu
- Jiangsu Key Laboratory of Medical Science and Laboratory Medicine, School of Medicine, Jiangsu University, Zhenjiang 212013, Jiangsu, China
| | - Li Li
- Department of Clinical Laboratory, Yijishan Hospital of Wannan Medical College, Wuhu 241000, Anhui, China
| | - Hui Wang
- Jiangsu Key Laboratory of Medical Science and Laboratory Medicine, School of Medicine, Jiangsu University, Zhenjiang 212013, Jiangsu, China
| | - Bin Tang
- Jiangsu Key Laboratory of Medical Science and Laboratory Medicine, School of Medicine, Jiangsu University, Zhenjiang 212013, Jiangsu, China
| | - Wei Ni
- Jiangsu Key Laboratory of Medical Science and Laboratory Medicine, School of Medicine, Jiangsu University, Zhenjiang 212013, Jiangsu, China
| | - Jiqin Zhou
- Jiangsu Key Laboratory of Medical Science and Laboratory Medicine, School of Medicine, Jiangsu University, Zhenjiang 212013, Jiangsu, China
| | - Yating Ling
- Jiangsu Key Laboratory of Medical Science and Laboratory Medicine, School of Medicine, Jiangsu University, Zhenjiang 212013, Jiangsu, China
| | - Xiaorui Lu
- Jiangsu Key Laboratory of Medical Science and Laboratory Medicine, School of Medicine, Jiangsu University, Zhenjiang 212013, Jiangsu, China
| | - Dongdong Niu
- Jiangsu Key Laboratory of Medical Science and Laboratory Medicine, School of Medicine, Jiangsu University, Zhenjiang 212013, Jiangsu, China
| | - Murugan Ramalingam
- Biomaterials and Organ Engineering Group, Centre for Biomaterials, Cellular and Molecular Theranostics, School of Mechanical Engineering, Vellore Institute of Technology, Vellore 632014, India
| | - Jiabo Hu
- Jiangsu Key Laboratory of Medical Science and Laboratory Medicine, School of Medicine, Jiangsu University, Zhenjiang 212013, Jiangsu, China
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32
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Advances and Perspectives in Dental Pulp Stem Cell Based Neuroregeneration Therapies. Int J Mol Sci 2021; 22:ijms22073546. [PMID: 33805573 PMCID: PMC8036729 DOI: 10.3390/ijms22073546] [Citation(s) in RCA: 31] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2021] [Revised: 03/25/2021] [Accepted: 03/26/2021] [Indexed: 02/06/2023] Open
Abstract
Human dental pulp stem cells (hDPSCs) are some of the most promising stem cell types for regenerative therapies given their ability to grow in the absence of serum and their realistic possibility to be used in autologous grafts. In this review, we describe the particular advantages of hDPSCs for neuroregenerative cell therapies. We thoroughly discuss the knowledge about their embryonic origin and characteristics of their postnatal niche, as well as the current status of cell culture protocols to maximize their multilineage differentiation potential, highlighting some common issues when assessing neuronal differentiation fates of hDPSCs. We also review the recent progress on neuroprotective and immunomodulatory capacity of hDPSCs and their secreted extracellular vesicles, as well as their combination with scaffold materials to improve their functional integration on the injured central nervous system (CNS) and peripheral nervous system (PNS). Finally, we offer some perspectives on the current and possible future applications of hDPSCs in neuroregenerative cell therapies.
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33
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Sharma Y, Shobha K, Sundeep M, Pinnelli VB, Parveen S, Dhanushkodi A. Neural Basis of Dental Pulp Stem Cells and its Potential Application in Parkinson's disease. CNS & NEUROLOGICAL DISORDERS-DRUG TARGETS 2021; 21:62-76. [PMID: 33719979 DOI: 10.2174/1871527320666210311122921] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/10/2020] [Revised: 01/16/2021] [Accepted: 01/29/2021] [Indexed: 11/22/2022]
Abstract
Parkinson's disease (PD) is the second most common neurodegenerative disease after Alzheimer's disease. Though significant insights into the molecular-biochemical-cellular-behavioral basis of PD have been understood, there is no appreciable treatment available till date. Current therapies provide symptomatic relief without any influence on the progression of the disease. Stem cell therapy has been vigorously explored to treat PD. In this comprehensive review, we analyze various stem cell candidates for treating PD and discuss the possible mechanisms. We advocate the advantage of using neural crest originated dental pulp stem cells (DPSC) due to their predisposition towards neural differentiation and their potential to regenerate neurons far better than commonly used bone marrow derived mesenchymal stem cells (BM-MSCs). Eventually, we highlight the current challenges in the field and the strategies which may be used for overcoming the impediments.
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Affiliation(s)
- Yogita Sharma
- Manipal Institute of Regenerative Medicine, Manipal Academy of Higher Education, Bangalore, Karnataka. India
| | - Shobha K
- Manipal Institute of Regenerative Medicine, Manipal Academy of Higher Education, Bangalore, Karnataka. India
| | - Mata Sundeep
- Manipal Institute of Regenerative Medicine, Manipal Academy of Higher Education, Bangalore, Karnataka. India
| | | | - Shagufta Parveen
- Manipal Institute of Regenerative Medicine, Manipal Academy of Higher Education, Bangalore, Karnataka. India
| | - Anandh Dhanushkodi
- Manipal Institute of Regenerative Medicine, Manipal Academy of Higher Education, Bangalore, Karnataka. India
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34
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Powell R, Phillips JB. Engineered Tissues Made from Human iPSC-Derived Schwann Cells for Investigating Peripheral Nerve Regeneration In Vitro. Methods Mol Biol 2021; 2269:245-254. [PMID: 33687684 DOI: 10.1007/978-1-0716-1225-5_17] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/13/2023]
Abstract
Peripheral nerves have a limited ability to regenerate and current clinical approaches involving microsurgery give suboptimal recovery. Engineered tissues using aligned cellular collagen hydrogels can be used as in vitro models through the incorporation of human Schwann cells. However, primary human Schwann cells are difficult to obtain and can be challenging to culture. The ability to generate Schwann cells from human-induced pluripotent stem cells (hiPSCs) provides a more reliable cell source for modeling peripheral nerve tissue. Here, we describe protocols for generating hiPSC-derived Schwann cells and incorporating them into 3D engineered tissue culture models for peripheral nerve research.
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Affiliation(s)
- Rebecca Powell
- UCL Centre for Nerve Engineering, Department of Pharmacology, UCL School of Pharmacy, University College London, London, UK
| | - James B Phillips
- UCL Centre for Nerve Engineering, Department of Pharmacology, UCL School of Pharmacy, University College London, London, UK.
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35
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Luo L, Wang X, Zhang Y, Wu Y, Hu F, Xing Z, Wang L, Xiao J, Guastaldi F, He Y, Ye Q. Biological Behavioral Alterations of the Post-neural Differentiated Dental Pulp Stem Cells Through an in situ Microenvironment. Front Cell Dev Biol 2020; 8:625151. [PMID: 33344464 PMCID: PMC7744789 DOI: 10.3389/fcell.2020.625151] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2020] [Accepted: 11/16/2020] [Indexed: 12/27/2022] Open
Abstract
Transplantation of undifferentiated dental pulp stem cells (DPSCs) may suffer from tumorigenesis. Neuronal differentiated DPSCs (d-DPSCs) have emerged as an ideal source to treat central nervous system (CNS) disorders. Moreover, different components of culture medium functioned on the characteristics of d-DPSCs in vitro. In this study, d-DPSCs were cultured in three types of medium: Neurobasal®®-A medium supplemented with 2% B27 (the 2% B27 NM group), Neurobasal® -A medium supplemented with 2% B27 and 5% FBS (the 2% B27 + 5% FBS NM group), and α-MEM containing 10% FBS (the 10% FBS α-MEM group). We found that d-DPSCs in the 2% B27 + 5% FBS NM group had lower proliferation and reduced expression of transient receptor potential canonical 1 (TRPC1) and CD146, whereas up-regulated Nestin and microtubule-associated protein-2 (MAP-2). Notably, d-DPSCs in the 10% FBS α-MEM group possessed high proliferative capacity, decreased expression of neuron-like markers and partially restored stemness. It was demonstrated that d-DPSCs cultured in the 2% B27 + 5% FBS NM could maintain their neuron-like characteristics. Besides, d-DPSCs cultivated in the 10% FBS α-MEM could partially recover their stem cells properties, indicating that neural differentiation of DPSCs was reversible and could open novel avenues for exploring the pluripotency of DPSCs.
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Affiliation(s)
- Lihua Luo
- School and Hospital of Stomatology, Wenzhou Medical University, Wenzhou, China
| | - Xiaoyan Wang
- School and Hospital of Stomatology, Wenzhou Medical University, Wenzhou, China
| | - Yanni Zhang
- School and Hospital of Stomatology, Wenzhou Medical University, Wenzhou, China
| | - Yuwei Wu
- School and Hospital of Stomatology, Wenzhou Medical University, Wenzhou, China
| | - Fengting Hu
- School and Hospital of Stomatology, Wenzhou Medical University, Wenzhou, China
| | - Zhenjie Xing
- School and Hospital of Stomatology, Wenzhou Medical University, Wenzhou, China
| | - Lei Wang
- Wenzhou Institute of Biomaterials and Engineering, Wenzhou Medical University, Wenzhou, China
| | - Jian Xiao
- School of Pharmaceutical Sciences, Wenzhou Medical University, Wenzhou, China
| | - Fernando Guastaldi
- Skeletal Biology Research Center, Massachusetts General Hospital, Harvard University, Boston, MA, United States
| | - Yan He
- Skeletal Biology Research Center, Massachusetts General Hospital, Harvard University, Boston, MA, United States.,Tianyou Hospital, Wuhan University of Science and Technology, Wuhan, China
| | - Qingsong Ye
- School and Hospital of Stomatology, Wenzhou Medical University, Wenzhou, China.,Skeletal Biology Research Center, Massachusetts General Hospital, Harvard University, Boston, MA, United States.,Center of Regenerative Medicine, Renmin Hospital of Wuhan University, Wuhan, China
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36
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Meena P, Kakkar A, Kumar M, Khatri N, Nagar RK, Singh A, Malhotra P, Shukla M, Saraswat SK, Srivastava S, Datt R, Pandey S. Advances and clinical challenges for translating nerve conduit technology from bench to bed side for peripheral nerve repair. Cell Tissue Res 2020; 383:617-644. [PMID: 33201351 DOI: 10.1007/s00441-020-03301-x] [Citation(s) in RCA: 37] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2020] [Accepted: 09/14/2020] [Indexed: 12/19/2022]
Abstract
Injuries to the peripheral nervous system remain a large-scale clinical problem. These injuries often lead to loss of motor and/or sensory function that significantly affects patients' quality of life. The current neurosurgical approach for peripheral nerve repair involves autologous nerve transplantation, which often leads to clinical complications. The most pressing need is to increase the regenerative capacity of existing tubular constructs in the repair of large nerve gaps through development of tissue-engineered approaches that can surpass the performance of autografts. To fully realize the clinical potential of nerve conduit technology, there is a need to reconsider design strategies, biomaterial selection, fabrication techniques and the various potential modifications to optimize a conduit microenvironment that can best mimic the natural process of regeneration. In recent years, a significant progress has been made in the designing and functionality of bioengineered nerve conduits to bridge long peripheral nerve gaps in various animal models. However, translation of this work from lab to commercial scale has not been achieve. The current review summarizes recent advances in the development of tissue engineered nerve guidance conduits (NGCs) with regard to choice of material, novel fabrication methods, surface modifications and regenerative cues such as stem cells and growth factors to improve regeneration performance. Also, the current clinical potential and future perspectives to achieve therapeutic benefits of NGCs will be discussed in context of peripheral nerve regeneration.
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Affiliation(s)
- Poonam Meena
- Department of Life Sciences, Datt Mediproducts Pvt. Ltd., Roz Ka Meo Industrial Area, District Mewat, Nuh, 122103, District Haryana, India
| | - Anupama Kakkar
- Department of Life Sciences, Datt Mediproducts Pvt. Ltd., Roz Ka Meo Industrial Area, District Mewat, Nuh, 122103, District Haryana, India
| | - Mukesh Kumar
- Department of Life Sciences, Datt Mediproducts Pvt. Ltd., Roz Ka Meo Industrial Area, District Mewat, Nuh, 122103, District Haryana, India
| | - Nitin Khatri
- Department of Life Sciences, Datt Mediproducts Pvt. Ltd., Roz Ka Meo Industrial Area, District Mewat, Nuh, 122103, District Haryana, India
| | - Rakesh Kumar Nagar
- Department of Life Sciences, Datt Mediproducts Pvt. Ltd., Roz Ka Meo Industrial Area, District Mewat, Nuh, 122103, District Haryana, India
| | - Aarti Singh
- Department of Life Sciences, Datt Mediproducts Pvt. Ltd., Roz Ka Meo Industrial Area, District Mewat, Nuh, 122103, District Haryana, India
| | - Poonam Malhotra
- Department of Life Sciences, Datt Mediproducts Pvt. Ltd., Roz Ka Meo Industrial Area, District Mewat, Nuh, 122103, District Haryana, India
| | - Manish Shukla
- Department of Life Sciences, Datt Mediproducts Pvt. Ltd., Roz Ka Meo Industrial Area, District Mewat, Nuh, 122103, District Haryana, India
| | - Sumit Kumar Saraswat
- Department of Life Sciences, Datt Mediproducts Pvt. Ltd., Roz Ka Meo Industrial Area, District Mewat, Nuh, 122103, District Haryana, India
| | - Supriya Srivastava
- Department of Life Sciences, Datt Mediproducts Pvt. Ltd., Roz Ka Meo Industrial Area, District Mewat, Nuh, 122103, District Haryana, India
| | - Rajan Datt
- Department of Life Sciences, Datt Mediproducts Pvt. Ltd., Roz Ka Meo Industrial Area, District Mewat, Nuh, 122103, District Haryana, India
| | - Siddharth Pandey
- Department of Life Sciences, Datt Mediproducts Pvt. Ltd., Roz Ka Meo Industrial Area, District Mewat, Nuh, 122103, District Haryana, India.
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37
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Huang Z, Powell R, Phillips JB, Haastert-Talini K. Perspective on Schwann Cells Derived from Induced Pluripotent Stem Cells in Peripheral Nerve Tissue Engineering. Cells 2020; 9:E2497. [PMID: 33213068 PMCID: PMC7698557 DOI: 10.3390/cells9112497] [Citation(s) in RCA: 39] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2020] [Revised: 11/13/2020] [Accepted: 11/16/2020] [Indexed: 02/06/2023] Open
Abstract
Schwann cells play a crucial role in successful peripheral nerve repair and regeneration by supporting both axonal growth and myelination. Schwann cells are therefore a feasible option for cell therapy treatment of peripheral nerve injury. However, sourcing human Schwann cells at quantities required for development beyond research is challenging. Due to their availability, rapid in vitro expansion, survival, and integration within the host tissue, stem cells have attracted considerable attention as candidate cell therapies. Among them, induced pluripotent stem cells (iPSCs) with the associated prospects for personalized treatment are a promising therapy to take the leap from bench to bedside. In this critical review, we firstly focus on the current knowledge of the Schwann cell phenotype in regard to peripheral nerve injury, including crosstalk with the immune system during peripheral nerve regeneration. Then, we review iPSC to Schwann cell derivation protocols and the results from recent in vitro and in vivo studies. We finally conclude with some prospects for the use of iPSCs in clinical settings.
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Affiliation(s)
- Zhong Huang
- Institute of Neuroanatomy and Cell Biology, Hannover Medical School, 30623 Hannover, Germany;
- Center for Systems Neuroscience (ZSN) Hannover, 30559 Hannover, Germany
| | - Rebecca Powell
- Department of Pharmacology, UCL School of Pharmacy, 29-39 Brunswick Square, London WC1N 1AX, UK;
- UCL Centre for Nerve Engineering, University College London, London WC1E 6BT, UK
| | - James B. Phillips
- Department of Pharmacology, UCL School of Pharmacy, 29-39 Brunswick Square, London WC1N 1AX, UK;
- UCL Centre for Nerve Engineering, University College London, London WC1E 6BT, UK
| | - Kirsten Haastert-Talini
- Institute of Neuroanatomy and Cell Biology, Hannover Medical School, 30623 Hannover, Germany;
- Center for Systems Neuroscience (ZSN) Hannover, 30559 Hannover, Germany
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38
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Wang DR, Wang YH, Pan J, Tian WD. Neurotrophic effects of dental pulp stem cells in repair of peripheral nerve after crush injury. World J Stem Cells 2020; 12:1196-1213. [PMID: 33178401 PMCID: PMC7596440 DOI: 10.4252/wjsc.v12.i10.1196] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/20/2020] [Revised: 06/13/2020] [Accepted: 08/16/2020] [Indexed: 02/06/2023] Open
Abstract
BACKGROUND Nerve diseases and injuries, which are usually accompanied by motor or sensory dysfunction and disorder, impose a heavy burden upon patients and greatly reduce their quality of life. Dental pulp stem cells (DPSCs), derived from the neural crest, have many characteristics that are similar to those of neural cells, indicating that they can be an ideal source for neural repair. AIM To explore the potential roles and molecular mechanisms of DPSCs in crushed nerve recovery. METHODS DPSCs were isolated, cultured, and identified by multilineage differentiation and flow cytometry. Western blot and immunofluorescent staining were applied to analyze the expression levels of neurotrophic proteins in DPSCs after neural induction. Then, we collected the secretions of DPSCs. We analyzed their effects on RSC96 cell proliferation and migration by CCK8 and transwell assays. Finally, we generated a sciatic nerve crush injury model in vivo and used the sciatic function index, walking track analysis, muscle weight, and hematoxylin & eosin (H&E) staining to further evaluate the nerve repair ability of DPSCs. RESULTS DPSCs highly expressed several specific neural markers, including GFAP, S100, Nestin, P75, and NF200, and were inclined toward neural differentiation. Furthermore, neural-induced DPSCs (N-DPSCs) could express neurotrophic factors, including NGF, BDNF, and GDNF. The secretions of N-DPSCs could enhance the proliferation and migration of Schwann cells. In vivo, both DPSC and N-DPSC implants alleviated gastrocnemius muscle atrophy. However, in terms of anatomy and motor function, as shown by H&E staining, immunofluorescent staining, and walking track analyses, the repair effects of N-DPSCs were more sustained, potent, and effective than those of DPSCs and the controls. CONCLUSION In summary, this study demonstrated that DPSCs are inclined to differentiate into neural cells. N-DPSCs express neurotrophic proteins that could enhance the proliferation and migration of SCs. Furthermore, our results suggested that N-DPSCs could help crushed nerves with functional recovery and anatomical repair in vivo. Thus, DPSCs or N-DPSCs could be a promising therapeutic cell source for peripheral nerve repair and regeneration.
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Affiliation(s)
- Dian-Ri Wang
- State Key Laboratory of Oral Disease, West China Hospital of Stomatology, Sichuan University, Chengdu 610041, Sichuan Province, China
- National Clinical Research Center for Oral Diseases & Department of Oral and Maxillofacial Surgery, West China Hospital of Stomatology, Sichuan University, Chengdu 610041, Sichuan Province, China
- National Engineering Laboratory for Oral Regenerative Medicine, West China Hospital of Stomatology, Sichuan University, Chengdu 610041, Sichuan Province, China
| | - Yu-Hao Wang
- State Key Laboratory of Oral Disease, West China Hospital of Stomatology, Sichuan University, Chengdu 610041, Sichuan Province, China
- National Clinical Research Center for Oral Diseases & Department of Oral and Maxillofacial Surgery, West China Hospital of Stomatology, Sichuan University, Chengdu 610041, Sichuan Province, China
- National Engineering Laboratory for Oral Regenerative Medicine, West China Hospital of Stomatology, Sichuan University, Chengdu 610041, Sichuan Province, China
| | - Jian Pan
- State Key Laboratory of Oral Disease, West China Hospital of Stomatology, Sichuan University, Chengdu 610041, Sichuan Province, China
- National Clinical Research Center for Oral Diseases & Department of Oral and Maxillofacial Surgery, West China Hospital of Stomatology, Sichuan University, Chengdu 610041, Sichuan Province, China
- National Engineering Laboratory for Oral Regenerative Medicine, West China Hospital of Stomatology, Sichuan University, Chengdu 610041, Sichuan Province, China.
| | - Wei-Dong Tian
- State Key Laboratory of Oral Disease, West China Hospital of Stomatology, Sichuan University, Chengdu 610041, Sichuan Province, China
- National Clinical Research Center for Oral Diseases & Department of Oral and Maxillofacial Surgery, West China Hospital of Stomatology, Sichuan University, Chengdu 610041, Sichuan Province, China
- National Engineering Laboratory for Oral Regenerative Medicine, West China Hospital of Stomatology, Sichuan University, Chengdu 610041, Sichuan Province, China
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39
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Granz CL, Gorji A. Dental stem cells: The role of biomaterials and scaffolds in developing novel therapeutic strategies. World J Stem Cells 2020; 12:897-921. [PMID: 33033554 PMCID: PMC7524692 DOI: 10.4252/wjsc.v12.i9.897] [Citation(s) in RCA: 28] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/04/2020] [Revised: 06/05/2020] [Accepted: 08/16/2020] [Indexed: 02/06/2023] Open
Abstract
Dental stem cells (DSCs) are self-renewable cells that can be obtained easily from dental tissues, and are a desirable source of autologous stem cells. The use of DSCs for stem cell transplantation therapeutic approaches is attractive due to their simple isolation, high plasticity, immunomodulatory properties, and multipotential abilities. Using appropriate scaffolds loaded with favorable biomolecules, such as growth factors, and cytokines, can improve the proliferation, differentiation, migration, and functional capacity of DSCs and can optimize the cellular morphology to build tissue constructs for specific purposes. An enormous variety of scaffolds have been used for tissue engineering with DSCs. Of these, the scaffolds that particularly mimic tissue-specific micromilieu and loaded with biomolecules favorably regulate angiogenesis, cell-matrix interactions, degradation of extracellular matrix, organized matrix formation, and the mineralization abilities of DSCs in both in vitro and in vivo conditions. DSCs represent a promising cell source for tissue engineering, especially for tooth, bone, and neural tissue restoration. The purpose of the present review is to summarize the current developments in the major scaffolding approaches as crucial guidelines for tissue engineering using DSCs and compare their effects in tissue and organ regeneration.
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Affiliation(s)
- Cornelia Larissa Granz
- Epilepsy Research Center, Westfälische Wilhelms-Universität Münster, Münster 48149, Germany
| | - Ali Gorji
- Epilepsy Research Center, Westfälische Wilhelms-Universität Münster, Münster 48149, Germany
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Luo L, He Y, Jin L, Zhang Y, Guastaldi FP, Albashari AA, Hu F, Wang X, Wang L, Xiao J, Li L, Wang J, Higuchi A, Ye Q. Application of bioactive hydrogels combined with dental pulp stem cells for the repair of large gap peripheral nerve injuries. Bioact Mater 2020; 6:638-654. [PMID: 33005828 PMCID: PMC7509005 DOI: 10.1016/j.bioactmat.2020.08.028] [Citation(s) in RCA: 67] [Impact Index Per Article: 16.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2020] [Revised: 08/27/2020] [Accepted: 08/27/2020] [Indexed: 02/09/2023] Open
Abstract
Due to the limitations in autogenous nerve grafting or Schwann cell transplantation, large gap peripheral nerve injuries require a bridging strategy supported by nerve conduit. Cell based therapies provide a novel treatment for peripheral nerve injuries. In this study, we first experimented an optimal scaffold material synthesis protocol, from where we selected the 10% GFD formula (10% GelMA hydrogel, recombinant human basic fibroblast growth factor and dental pulp stem cells (DPSCs)) to fill a cellulose/soy protein isolate composite membrane (CSM) tube to construct a third generation of nerve regeneration conduit, CSM-GFD. Then this CSM-GFD conduit was applied to repair a 15-mm long defect of sciatic nerve in a rat model. After 12 week post implant surgery, at histologic level, we found CSM-GFD conduit could regenerate nerve tissue like neuron and Schwann like nerve cells and myelinated nerve fibers. At physical level, CSM-GFD achieved functional recovery assessed by a sciatic functional index study. In both levels, CSM-GFD performed like what gold standard, the nerve autograft, could do. Further, we unveiled that almost all newly formed nerve tissue at defect site was originated from the direct differentiation of exogeneous DPSCs in CSM-GFD. In conclusion, we claimed that this third-generation nerve regeneration conduit, CSM-GFD, could be a promising tissue engineering approach to replace the conventional nerve autograft to treat the large gap defect in peripheral nerve injuries. A novel 3rd generation nerve conduit was successfully constructed and applied for repairing peripheral nerve injuries (PNI). Dental pulp stem cells (DPSCs) was optimized as an ideal seeding cells for nerve regeneration. A bioactive system combining GelMA with human bFGF and DPSCs could reconstruct the long gap PNI within 12 weeks in vivo. Our system could achieve the same outcome in nerve repair as that of autografting, a routine treatment for PNI. The proposed bioactive system may trigger an evolutional change into the current clinical practice in managing PNI. The majority of the regenerated nerve tissue was originated from the donor’s dental pulp stem cells.
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Affiliation(s)
- Lihua Luo
- School and Hospital of Stomatology, Wenzhou Medical University, Wenzhou, Zhejiang, China
| | - Yan He
- Tianyou Hospital, Wuhan University of Science and Technology, Wuhan, 430064, China.,Skeletal Biology Research Center, Massachusetts General Hospital and Harvard School of Dental Medicine, Boston, MA, 02114, USA
| | - Ling Jin
- School and Hospital of Stomatology, Wenzhou Medical University, Wenzhou, Zhejiang, China
| | - Yanni Zhang
- School and Hospital of Stomatology, Wenzhou Medical University, Wenzhou, Zhejiang, China
| | - Fernando P Guastaldi
- Skeletal Biology Research Center, Massachusetts General Hospital and Harvard School of Dental Medicine, Boston, MA, 02114, USA
| | | | - Fengting Hu
- School and Hospital of Stomatology, Wenzhou Medical University, Wenzhou, Zhejiang, China
| | - Xiaoyan Wang
- School and Hospital of Stomatology, Wenzhou Medical University, Wenzhou, Zhejiang, China
| | - Lei Wang
- Wenzhou Institute of Biomaterials and Engineering, Wenzhou, Zhejiang Province, 325000, China
| | - Jian Xiao
- Molecular Pharmacology Research Center, School of Pharmacy, Wenzhou Medical University, Wenzhou, 325035, China
| | - Lingli Li
- Wenzhou Institute of Biomaterials and Engineering, Wenzhou, Zhejiang Province, 325000, China.,School of Ophthalmology and Optometry, Eye Hospital, Wenzhou Medical University, Wenzhou, Zhejiang, 325027, China
| | - Jianming Wang
- Tianyou Hospital, Wuhan University of Science and Technology, Wuhan, 430064, China.,Department of Biliary and Pancreatic Surgery/Cancer Research Center, Affiliated Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430030, China
| | - Akon Higuchi
- School of Ophthalmology and Optometry, Eye Hospital, Wenzhou Medical University, Wenzhou, Zhejiang, 325027, China
| | - Qingsong Ye
- School and Hospital of Stomatology, Wenzhou Medical University, Wenzhou, Zhejiang, China.,Skeletal Biology Research Center, Massachusetts General Hospital and Harvard School of Dental Medicine, Boston, MA, 02114, USA.,Center of Regenerative Medicine, Renmin Hospital of Wuhan University, Wuhan, 430060, China
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41
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Abuarqoub D, Aslam N, Almajali B, Shajrawi L, Jafar H, Awidi A. Neuro-regenerative potential of dental stem cells: a concise review. Cell Tissue Res 2020; 382:267-279. [PMID: 32725424 DOI: 10.1007/s00441-020-03255-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2020] [Accepted: 07/06/2020] [Indexed: 10/23/2022]
Abstract
This review will summarize the research information regarding the regenerative potential of dental stem cells for the treatment of neurodegenerative disorders. As compared to existing treatment modalities, the stem cell therapy seems promising, and accumulating evidences about the differentiation of stem cells into various lineages are proving it. The incidence of neurodegenerative diseases such as Alzheimer's, Parkinson's, stroke, and peripheral neuropathy is increasing due to the rise in life expectancies of people which have put a huge burden on economies. Finding a promising treatment could benefit not only the patients but also the communities. Dental stem cells hold a great potential to differentiate into neuronal cells. Many studies have reported the differentiation potential of the dental stem cells with the presence of neuronal lineage markers. In this review, we conferred how the use of dental stem cells can benefit the above-mentioned bedridden diseases.
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Affiliation(s)
- Duaa Abuarqoub
- Department of Pharmacology and Biomedical Sciences, Faculty of Pharmacy and Medical Sciences, University of Petra, Amman, Jordan. .,Cell Therapy Center, The University of Jordan, Amman, Jordan.
| | - Nazneen Aslam
- Cell Therapy Center, The University of Jordan, Amman, Jordan
| | - Bayan Almajali
- School of Medicine, The University of Jordan, Amman, Jordan
| | - Leen Shajrawi
- School of Medicine, The University of Jordan, Amman, Jordan
| | - Hanan Jafar
- Cell Therapy Center, The University of Jordan, Amman, Jordan.,School of Medicine, The University of Jordan, Amman, Jordan
| | - Abdalla Awidi
- Cell Therapy Center, The University of Jordan, Amman, Jordan. .,School of Medicine, The University of Jordan, Amman, Jordan.
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42
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A Systematic Review of the Effectiveness of Cell-Based Therapy in Repairing Peripheral Nerve Gap Defects. PROSTHESIS 2020. [DOI: 10.3390/prosthesis2030014] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
Nerve prostheses are widely utilized to reconstruct segmental (gap) defects in peripheral nerves as an alternative to nerve grafting. However, with increasing gap length, the effectiveness of a nerve prosthesis becomes sub-optimal, which subsequently has made repairing larger gaps in peripheral nerves a significant challenge in the field of regenerative medicine. Recently, the structure of nerve prostheses has been significantly revised, which interestingly, has provided a promising avenue for the housing and proliferation of supportive cells. In this systematic review, cell implantation in synthetic nerve prostheses to enhance the regenerative capability of an injured nerve with a focus on identifying the cell type and mode of cell delivery is discussed. Of interest are the studies employing supportive cells to bridge gaps greater than 10 mm without the aid of nerve growth factors. The results have shown that cell therapy in conjunction with nerve prostheses becomes inevitable and has dramatically boosted the ability of these prostheses to maintain sustainable nerve regeneration across larger gaps and helped to attain functional recovery, which is the ultimate goal. The statistical analysis supports the use of differentiated bone-marrow-derived mesenchymal stem cells suspended in oxygen-carrying hydrogels in chitosan prostheses for bridging gaps of up to 40 mm; however, based on the imperfect repair outcomes, nerve grafting should not yet be replaced altogether.
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43
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Samadian H, Maleki H, Fathollahi A, Salehi M, Gholizadeh S, Derakhshankhah H, Allahyari Z, Jaymand M. Naturally occurring biological macromolecules-based hydrogels: Potential biomaterials for peripheral nerve regeneration. Int J Biol Macromol 2020; 154:795-817. [DOI: 10.1016/j.ijbiomac.2020.03.155] [Citation(s) in RCA: 48] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2020] [Revised: 03/15/2020] [Accepted: 03/16/2020] [Indexed: 12/18/2022]
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44
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Wilcox M, Gregory H, Powell R, Quick TJ, Phillips JB. Strategies for Peripheral Nerve Repair. CURRENT TISSUE MICROENVIRONMENT REPORTS 2020; 1:49-59. [PMID: 33381765 PMCID: PMC7749870 DOI: 10.1007/s43152-020-00002-z] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Abstract
PURPOSE OF REVIEW This review focuses on biomechanical and cellular considerations required for development of biomaterials and engineered tissues suitable for implantation following PNI, as well as translational requirements relating to outcome measurements for testing success in patients. RECENT FINDINGS Therapies that incorporate multiple aspects of the regenerative environment are likely to be key to improving therapies for nerve regeneration. This represents a complex challenge when considering the diversity of biological, chemical and mechanical factors involved. In addition, clinical outcome measures following peripheral nerve repair which are sensitive and responsive to changes in the tissue microenvironment following neural injury and regeneration are required. SUMMARY Effective new therapies for the treatment of PNI are likely to include engineered tissues and biomaterials able to evoke a tissue microenvironment that incorporates both biochemical and mechanical features supportive to regeneration. Translational development of these technologies towards clinical use in humans drives a concomitant need for improved clinical measures to quantify nerve regeneration.
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Affiliation(s)
- Matthew Wilcox
- Department of Pharmacology, UCL School of Pharmacy, University College London, 29-39 Brunswick Square, London, WC1N 1AX UK
- UCL Centre for Nerve Engineering, University College London, London, UK
- Peripheral Nerve Injury Research Unit, Royal National Orthopaedic Hospital, Stanmore, UK
| | - Holly Gregory
- Department of Pharmacology, UCL School of Pharmacy, University College London, 29-39 Brunswick Square, London, WC1N 1AX UK
- UCL Centre for Nerve Engineering, University College London, London, UK
| | - Rebecca Powell
- Department of Pharmacology, UCL School of Pharmacy, University College London, 29-39 Brunswick Square, London, WC1N 1AX UK
- UCL Centre for Nerve Engineering, University College London, London, UK
| | - Tom J. Quick
- Peripheral Nerve Injury Research Unit, Royal National Orthopaedic Hospital, Stanmore, UK
| | - James B. Phillips
- Department of Pharmacology, UCL School of Pharmacy, University College London, 29-39 Brunswick Square, London, WC1N 1AX UK
- UCL Centre for Nerve Engineering, University College London, London, UK
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45
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Coy R, Al-Badri G, Kayal C, O'Rourke C, Kingham PJ, Phillips JB, Shipley RJ. Combining in silico and in vitro models to inform cell seeding strategies in tissue engineering. J R Soc Interface 2020; 17:20190801. [PMID: 32208821 DOI: 10.1098/rsif.2019.0801] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022] Open
Abstract
The seeding density of therapeutic cells in engineered tissue impacts both cell survival and vascularization. Excessively high seeded cell densities can result in increased death and thus waste of valuable cells, whereas lower seeded cell densities may not provide sufficient support for the tissue in vivo, reducing efficacy. Additionally, the production of growth factors by therapeutic cells in low oxygen environments offers a way of generating growth factor gradients, which are important for vascularization, but hypoxia can also induce unwanted levels of cell death. This is a complex problem that lends itself to a combination of computational modelling and experimentation. Here, we present a spatio-temporal mathematical model parametrized using in vitro data capable of simulating the interactions between a therapeutic cell population, oxygen concentrations and vascular endothelial growth factor (VEGF) concentrations in engineered tissues. Simulations of collagen nerve repair constructs suggest that specific seeded cell densities and non-uniform spatial distributions of seeded cells could enhance cell survival and the generation of VEGF gradients. These predictions can now be tested using targeted experiments.
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Affiliation(s)
- R Coy
- CoMPLEX, University College London, London, UK.,UCL Centre for Nerve Engineering, University College London, London, UK
| | - G Al-Badri
- UCL Centre for Nerve Engineering, University College London, London, UK.,Department of Mathematics, University College London, London, UK
| | - C Kayal
- UCL Centre for Nerve Engineering, University College London, London, UK.,Department of Mechanical Engineering, University College London, London, UK
| | - C O'Rourke
- UCL Centre for Nerve Engineering, University College London, London, UK.,Department of Biomaterials and Tissue Engineering, UCL Eastman Dental Institute, University College London, London, UK
| | - P J Kingham
- Department of Integrative Medical Biology, Umeå University, Umeå, Sweden
| | - J B Phillips
- UCL Centre for Nerve Engineering, University College London, London, UK.,Department of Pharmacology, UCL School of Pharmacy, University College London, London, UK
| | - R J Shipley
- UCL Centre for Nerve Engineering, University College London, London, UK.,Department of Mechanical Engineering, University College London, London, UK
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46
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Pisciotta A, Bertoni L, Vallarola A, Bertani G, Mecugni D, Carnevale G. Neural crest derived stem cells from dental pulp and tooth-associated stem cells for peripheral nerve regeneration. Neural Regen Res 2020; 15:373-381. [PMID: 31571644 PMCID: PMC6921350 DOI: 10.4103/1673-5374.266043] [Citation(s) in RCA: 48] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/25/2018] [Accepted: 05/11/2019] [Indexed: 12/15/2022] Open
Abstract
The peripheral nerve injuries, representing some of the most common types of traumatic lesions affecting the nervous system, are highly invalidating for the patients besides being a huge social burden. Although peripheral nervous system owns a higher regenerative capacity than does central nervous system, mostly depending on Schwann cells intervention in injury repair, several factors determine the extent of functional outcome after healing. Based on the injury type, different therapeutic approaches have been investigated so far. Nerve grafting and Schwann cell transplantation have represented the gold standard treatment for peripheral nerve injuries, however these approaches own limitations, such as scarce donor nerve availability and donor site morbidity. Cell based therapies might provide a suitable tool for peripheral nerve regeneration, in fact, the ability of different stem cell types to differentiate towards Schwann cells in combination with the use of different scaffolds have been widely investigated in animal models of peripheral nerve injuries in the last decade. Dental pulp is a promising cell source for regenerative medicine, because of the ease of isolation procedures, stem cell proliferation and multipotency abilities, which are due to the embryological origin from neural crest. In this article we review the literature concerning the application of tooth derived stem cell populations combined with different conduits to peripheral nerve injuries animal models, highlighting their regenerative contribution exerted through either glial differentiation and neuroprotective/neurotrophic effects on the host tissue.
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Affiliation(s)
- Alessandra Pisciotta
- Department of Surgery, Medicine, Dentistry and Morphological Sciences with Interest in Transplant, Oncology and Regenerative Medicine, University of Modena and Reggio Emilia, Modena, Italy
| | - Laura Bertoni
- Department of Surgery, Medicine, Dentistry and Morphological Sciences with Interest in Transplant, Oncology and Regenerative Medicine, University of Modena and Reggio Emilia, Modena, Italy
| | - Antonio Vallarola
- Department of Life Sciences, University of Modena and Reggio Emilia, Modena, Italy
| | - Giulia Bertani
- Department of Surgery, Medicine, Dentistry and Morphological Sciences with Interest in Transplant, Oncology and Regenerative Medicine, University of Modena and Reggio Emilia, Modena, Italy
| | - Daniela Mecugni
- Department of Surgery, Medicine, Dentistry and Morphological Sciences with Interest in Transplant, Oncology and Regenerative Medicine, University of Modena and Reggio Emilia, Modena, Italy
- Azienda USL - Institute and Health Care (IRCCS) di Reggio Emilia, Reggio Emilia, Italy
| | - Gianluca Carnevale
- Department of Surgery, Medicine, Dentistry and Morphological Sciences with Interest in Transplant, Oncology and Regenerative Medicine, University of Modena and Reggio Emilia, Modena, Italy
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Man RC, Sulaiman N, Idrus RBH, Ariffin SHZ, Wahab RMA, Yazid MD. Insights into the Effects of the Dental Stem Cell Secretome on Nerve Regeneration: Towards Cell-Free Treatment. Stem Cells Int 2019; 2019:4596150. [PMID: 31772587 PMCID: PMC6855004 DOI: 10.1155/2019/4596150] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2019] [Revised: 08/28/2019] [Accepted: 09/16/2019] [Indexed: 12/11/2022] Open
Abstract
Cell-free treatment is emerging as an alternative to cell delivery to promote endogenous regeneration using cell-derived factors. The purpose of this article was to systematically review studies of the effects of the dental stem cell secretome on nerve regeneration. PubMed and Scopus databases were used where searched and related studies were selected. The primary search identified 36 articles with the utilized keywords; however, only 13 articles met the defined inclusion criteria. Eight out of thirteen articles included in vivo and in vitro studies. We classified the dental stem cell-derived secretome with its nerve regeneration potential. All studies demonstrated that dental stem cell-derived factors promote neurotrophic effects that can mechanistically stimulate nerve regeneration in neurodegenerative diseases and nerve injury. This data collection will enable researchers to gather information to create a precise formulation for future prescribed treatments.
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Affiliation(s)
- Rohaina Che Man
- Tissue Engineering Centre, Universiti Kebangsaan Malaysia Medical Centre, Jalan Yaacob Latif, 56000 Cheras, Kuala Lumpur, Malaysia
| | - Nadiah Sulaiman
- Tissue Engineering Centre, Universiti Kebangsaan Malaysia Medical Centre, Jalan Yaacob Latif, 56000 Cheras, Kuala Lumpur, Malaysia
| | - Ruszymah Bt Hj Idrus
- Department of Physiology, Faculty of Medicine, Universiti Kebangsaan Malaysia Medical Centre, Jalan Yaacob Latif, 56000 Cheras, Kuala Lumpur, Malaysia
| | - Shahrul Hisham Zainal Ariffin
- Malaysia Genome Institute (MGI), National Institute of Biotechnology Malaysia (NIBM), Jalan Bangi, 43000 Bangi, Selangor, Malaysia
- Faculty of Science and Technology, Universiti Kebangsaan Malaysia, Bangi, Selangor 43600, Malaysia
| | - Rohaya Megat Abdul Wahab
- Department of Orthodontic, Faculty of Dentistry, Universiti Kebangsaan Malaysia, Jalan Raja Muda Abdul Aziz, 50300 Kuala Lumpur, Malaysia
| | - Muhammad Dain Yazid
- Tissue Engineering Centre, Universiti Kebangsaan Malaysia Medical Centre, Jalan Yaacob Latif, 56000 Cheras, Kuala Lumpur, Malaysia
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Jahromi M, Razavi S, Bakhtiari A. The advances in nerve tissue engineering: From fabrication of nerve conduit to in vivo nerve regeneration assays. J Tissue Eng Regen Med 2019; 13:2077-2100. [PMID: 31350868 DOI: 10.1002/term.2945] [Citation(s) in RCA: 33] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2019] [Revised: 07/09/2019] [Accepted: 07/12/2019] [Indexed: 12/14/2022]
Abstract
Peripheral nerve damage is a common clinical complication of traumatic injury occurring after accident, tumorous outgrowth, or surgical side effects. Although the new methods and biomaterials have been improved recently, regeneration of peripheral nerve gaps is still a challenge. These injuries affect the quality of life of the patients negatively. In the recent years, many efforts have been made to develop innovative nerve tissue engineering approaches aiming to improve peripheral nerve treatment following nerve injuries. Herein, we will not only outline what we know about the peripheral nerve regeneration but also offer our insight regarding the types of nerve conduits, their fabrication process, and factors associated with conduits as well as types of animal and nerve models for evaluating conduit function. Finally, nerve regeneration in a rat sciatic nerve injury model by nerve conduits has been considered, and the main aspects that may affect the preclinical outcome have been discussed.
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Affiliation(s)
- Maliheh Jahromi
- Department of Anatomical Science, School of Medicine, Isfahan University of Medical Sciences, Isfahan, Iran
| | - Shahnaz Razavi
- Department of Anatomical Science, School of Medicine, Isfahan University of Medical Sciences, Isfahan, Iran
| | - Abbas Bakhtiari
- Department of Anatomical Science, School of Medicine, Isfahan University of Medical Sciences, Isfahan, Iran
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Exosomes from Human Gingiva-Derived Mesenchymal Stem Cells Combined with Biodegradable Chitin Conduits Promote Rat Sciatic Nerve Regeneration. Stem Cells Int 2019; 2019:2546367. [PMID: 31191669 PMCID: PMC6525800 DOI: 10.1155/2019/2546367] [Citation(s) in RCA: 70] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2018] [Accepted: 02/20/2019] [Indexed: 12/13/2022] Open
Abstract
At present, repair methods for peripheral nerve injury often fail to get satisfactory result. Although various strategies have been adopted to investigate the microenvironment after peripheral nerve injury, the underlying molecular mechanisms of neurite outgrowth remain unclear. In this study, we evaluate the effects of exosomes from gingival mesenchymal stem cells (GMSCs) combined with biodegradable chitin conduits on peripheral nerve regeneration. GMSCs were isolated from human gingival tissue and characterized by surface antigen analysis and in vitro multipotent differentiation. The cell supernatant was collected to isolate the exosomes. The exosomes were characterized by transmission electron microscopy, Western blot, and size distribution analysis. The effects of exosomes on peripheral nerve regeneration in vitro were evaluated by coculture with Schwann cells and DRGs. The chitin conduit was prepared and combined with the exosomes to repair rat sciatic nerve defect. Histology, electrophysiology, and gait analysis were used to test the effects of exosomes on sciatic nerve function recovery in vivo. We have successfully cultured GMSCs and isolated exosomes. The exosomes from GMSCs could significantly promote Schwann cell proliferation and DRG axon growth. The in vivo studies showed that chitin conduit combined with exosomes from GMSCs could significantly increase the number and diameter of nerve fibers and promote myelin formation. In addition, muscle function, nerve conduction function, and motor function were also obviously recovered. In summary, this study suggests that GMSC-derived exosomes combined with biodegradable chitin conduits are a useful and novel therapeutic intervention in peripheral nerve repair.
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Wang D, Wang Y, Tian W, Pan J. Advances of tooth-derived stem cells in neural diseases treatments and nerve tissue regeneration. Cell Prolif 2019; 52:e12572. [PMID: 30714230 PMCID: PMC6536383 DOI: 10.1111/cpr.12572] [Citation(s) in RCA: 34] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2018] [Revised: 12/05/2018] [Accepted: 12/06/2018] [Indexed: 02/05/2023] Open
Abstract
Nerous system diseases, both central and peripheral, bring an incredible burden onto patients and enormously reduce their quality of life. Currently, there are still no effective treatments to repair nerve lesions that do not have side effects. Stem cell-based therapies, especially those using dental stem cells, bring new hope to neural diseases. Dental stem cells, derived from the neural crest, have many characteristics that are similar to neural cells, indicating that they can be an ideal source of cells for neural regeneration and repair. This review summarizes the neural traits of all the dental cell types, including DPSCs, PDLCs, DFCs, APSCs and their potential applications in nervous system diseases. We have summed up the advantages of dental stem cells in neural repair, such as their neurotrophic and neuroprotective traits, easy harvest and low rejective reaction rate, among others. Taken together, dental stem cells are an ideal cell source for neural tissue regeneration and repair.
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Affiliation(s)
- Dianri Wang
- State Key Laboratory of Oral Disease, West China Hospital of StomatologySichuan UniversityChengduChina
- Department of Oral and Maxillofacial Surgery, National Clinical Research Center for Oral Diseases, West China Hospital of StomatologySichuan UniversityChengduChina
- National Engineering Laboratory for Oral Regenerative Medicine, West China Hospital of StomatologySichuan UniversityChengduChina
| | - Yuhao Wang
- State Key Laboratory of Oral Disease, West China Hospital of StomatologySichuan UniversityChengduChina
- Department of Oral and Maxillofacial Surgery, National Clinical Research Center for Oral Diseases, West China Hospital of StomatologySichuan UniversityChengduChina
- National Engineering Laboratory for Oral Regenerative Medicine, West China Hospital of StomatologySichuan UniversityChengduChina
| | - Weidong Tian
- State Key Laboratory of Oral Disease, West China Hospital of StomatologySichuan UniversityChengduChina
- Department of Oral and Maxillofacial Surgery, National Clinical Research Center for Oral Diseases, West China Hospital of StomatologySichuan UniversityChengduChina
- National Engineering Laboratory for Oral Regenerative Medicine, West China Hospital of StomatologySichuan UniversityChengduChina
| | - Jian Pan
- State Key Laboratory of Oral Disease, West China Hospital of StomatologySichuan UniversityChengduChina
- Department of Oral and Maxillofacial Surgery, National Clinical Research Center for Oral Diseases, West China Hospital of StomatologySichuan UniversityChengduChina
- National Engineering Laboratory for Oral Regenerative Medicine, West China Hospital of StomatologySichuan UniversityChengduChina
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