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Xu J, Ruan X. Schwann cell autotransplantation for the treatment of peripheral nerve injury. Life Sci 2024; 358:123129. [PMID: 39393574 DOI: 10.1016/j.lfs.2024.123129] [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: 03/08/2024] [Revised: 10/03/2024] [Accepted: 10/08/2024] [Indexed: 10/13/2024]
Abstract
Peripheral nerve injury occurs in a relatively large proportion of trauma patients, in whom it generally results in severe functional impairment and permanent disability. At present, however, there are no effective treatments available. Studies have shown that Schwann cells play an indispensable role in removing myelin debris and guiding axonal regeneration, and transplantation using autologous Schwann cells has shown good efficacy for patients with peripheral nerve injury. In recent years, Schwann cell autologous transplantation therapy has become an area of intensive research and is anticipated to provide a new strategy for the clinical treatment of peripheral nerve injury. In this article, we review the rationale for selecting Schwann cell autotransplantation therapy and the latest progress in key aspects of cell transplantation and clinical efficacy, and also summarize the future directions of research on this therapy. All of the above provide a strong basis for the further improvement and clinical promotion of this therapy.
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Affiliation(s)
- Jialiang Xu
- China Medical University, Shenyang, Liaoning 110122, People's Republic of China.
| | - Xuelei Ruan
- Department of Neurobiology, China Medical University, Shenyang, Liaoning 110122, People's Republic of China.
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2
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Wei C, Guo Y, Ci Z, Li M, Zhang Y, Zhou Y. Advances of Schwann cells in peripheral nerve regeneration: From mechanism to cell therapy. Biomed Pharmacother 2024; 175:116645. [PMID: 38729050 DOI: 10.1016/j.biopha.2024.116645] [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: 01/30/2024] [Revised: 04/18/2024] [Accepted: 04/24/2024] [Indexed: 05/12/2024] Open
Abstract
Peripheral nerve injuries (PNIs) frequently occur due to various factors, including mechanical trauma such as accidents or tool-related incidents, as well as complications arising from diseases like tumor resection. These injuries frequently result in persistent numbness, impaired motor and sensory functions, neuropathic pain, or even paralysis, which can impose a significant financial burden on patients due to outcomes that often fall short of expectations. The most frequently employed clinical treatment for PNIs involves either direct sutures of the severed ends or bridging the proximal and distal stumps using autologous nerve grafts. However, autologous nerve transplantation may result in sensory and motor functional loss at the donor site, as well as neuroma formation and scarring. Transplantation of Schwann cells/Schwann cell-like cells has emerged as a promising cellular therapy to reconstruct the microenvironment and facilitate peripheral nerve regeneration. In this review, we summarize the role of Schwann cells and recent advances in Schwann cell therapy in peripheral nerve regeneration. We summarize current techniques used in cell therapy, including cell injection, 3D-printed scaffolds for cell delivery, cell encapsulation techniques, as well as the cell types employed in experiments, experimental models, and research findings. At the end of the paper, we summarize the challenges and advantages of various cells (including ESCs, iPSCs, and BMSCs) in clinical cell therapy. Our goal is to provide the theoretical and experimental basis for future treatments targeting peripheral nerves, highlighting the potential of cell therapy and tissue engineering as invaluable resources for promoting nerve regeneration.
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Affiliation(s)
- Chuqiao Wei
- Department of Oral Implantology, Hospital of Stomatology, Jilin University, Changchun, China; Jilin Provincial Key Laboratory of Tooth Development and Bone Remodeling, Hospital of Stomatology, Jilin University, Changchun, China
| | - Yuanxin Guo
- Department of Oral Implantology, Hospital of Stomatology, Jilin University, Changchun, China; Jilin Provincial Key Laboratory of Tooth Development and Bone Remodeling, Hospital of Stomatology, Jilin University, Changchun, China
| | - Zhen Ci
- Department of Oral Implantology, Hospital of Stomatology, Jilin University, Changchun, China; Jilin Provincial Key Laboratory of Tooth Development and Bone Remodeling, Hospital of Stomatology, Jilin University, Changchun, China
| | - Mucong Li
- Department of Oral Implantology, Hospital of Stomatology, Jilin University, Changchun, China; Jilin Provincial Key Laboratory of Tooth Development and Bone Remodeling, Hospital of Stomatology, Jilin University, Changchun, China
| | - Yidi Zhang
- Department of Oral Implantology, Hospital of Stomatology, Jilin University, Changchun, China; Jilin Provincial Key Laboratory of Tooth Development and Bone Remodeling, Hospital of Stomatology, Jilin University, Changchun, China.
| | - Yanmin Zhou
- Department of Oral Implantology, Hospital of Stomatology, Jilin University, Changchun, China; Jilin Provincial Key Laboratory of Tooth Development and Bone Remodeling, Hospital of Stomatology, Jilin University, Changchun, China.
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3
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Xiao H, Wei C, Liu H, Li Z, Zheng C, Luo J. Lentinan alleviates sciatic nerve injury by promoting autophagy to remove myelin fragments. Phytother Res 2023; 37:4042-4058. [PMID: 37165703 DOI: 10.1002/ptr.7862] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/26/2022] [Revised: 04/20/2023] [Accepted: 04/21/2023] [Indexed: 05/12/2023]
Abstract
Lentinan, a natural drug with wide-ranging pharmacological activities, can regulate autophagy-the process through which Schwann cells (SCs) eliminate myelin fragments after peripheral nerve injury (PNI). However, the effect of lentinan after PNI and the role of accelerated myelin debris removal via autophagy in this process are unclear. This study examined the effect of lentinan on rat sciatic nerve repair following crush injury and the underlying mechanisms. After the successful establishment of the sciatic nerve compression injury model, group-specific treatments were performed. The treatment group received 20 mg/kg lentinan via intraperitoneal injection, while the model group was treated with normal saline. The recovery in each group was then evaluated. Further, a rat SC line (RSC96) was cultured in medium with/without lentinan after supplementation with homogenous myelin fractions to evaluate the removal of myelin particles. Our results showed that lentinan promotes autophagic flux in vivo via the AMPK/mTOR signaling pathway, accelerates the clearance of myelin debris by SCs, and inhibits neuronal apoptosis, thereby promoting neurological recovery. Similarly, in vitro experiments showed that lentinan promotes the phagocytosis of myelin debris by SCs. In conclusion, our results suggest that lentinan primarily promotes nerve regeneration by accelerating the autophagic clearance of myelin debris in SCs, and this process is likely regulated by the AMPK/mTOR signaling pathway. Therefore, this study provides compelling evidence that lentinan may be a cost-effective and natural treatment agent for PNI.
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Affiliation(s)
- Haili Xiao
- Department of Rehabilitation Medicine, The Second Affiliated Hospital of Nanchang University, Nanchang, China
| | - Chao Wei
- Department of Hepatobiliary surgery, The Second Affiliated Hospital of Nanchang University, Nanchang, China
| | - Huiying Liu
- Institute of Translational Medicine, The Second Affiliated Hospital of Nanchang University, Nanchang, China
| | - Zhiqiang Li
- Department of Orthopedics, The Second Affiliated Hospital of Nanchang University, Nanchang, China
| | - Cihua Zheng
- Department of Rehabilitation Medicine, The Second Affiliated Hospital of Nanchang University, Nanchang, China
| | - Jun Luo
- Department of Rehabilitation Medicine, The Second Affiliated Hospital of Nanchang University, Nanchang, China
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Hörner SJ, Couturier N, Gueiber DC, Hafner M, Rudolf R. Development and In Vitro Differentiation of Schwann Cells. Cells 2022; 11:3753. [PMID: 36497014 PMCID: PMC9739763 DOI: 10.3390/cells11233753] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2022] [Revised: 11/16/2022] [Accepted: 11/22/2022] [Indexed: 11/25/2022] Open
Abstract
Schwann cells are glial cells of the peripheral nervous system. They exist in several subtypes and perform a variety of functions in nerves. Their derivation and culture in vitro are interesting for applications ranging from disease modeling to tissue engineering. Since primary human Schwann cells are challenging to obtain in large quantities, in vitro differentiation from other cell types presents an alternative. Here, we first review the current knowledge on the developmental signaling mechanisms that determine neural crest and Schwann cell differentiation in vivo. Next, an overview of studies on the in vitro differentiation of Schwann cells from multipotent stem cell sources is provided. The molecules frequently used in those protocols and their involvement in the relevant signaling pathways are put into context and discussed. Focusing on hiPSC- and hESC-based studies, different protocols are described and compared, regarding cell sources, differentiation methods, characterization of cells, and protocol efficiency. A brief insight into developments regarding the culture and differentiation of Schwann cells in 3D is given. In summary, this contribution provides an overview of the current resources and methods for the differentiation of Schwann cells, it supports the comparison and refinement of protocols and aids the choice of suitable methods for specific applications.
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Affiliation(s)
- Sarah Janice Hörner
- Institute of Molecular and Cell Biology, Mannheim University of Applied Sciences, 68163 Mannheim, Germany
- Interdisciplinary Center for Neurosciences, Heidelberg University, 69120 Heidelberg, Germany
- Center for Mass Spectrometry and Optical Spectroscopy, Mannheim University of Applied Sciences, 68163 Mannheim, Germany
| | - Nathalie Couturier
- Institute of Molecular and Cell Biology, Mannheim University of Applied Sciences, 68163 Mannheim, Germany
- Interdisciplinary Center for Neurosciences, Heidelberg University, 69120 Heidelberg, Germany
- Center for Mass Spectrometry and Optical Spectroscopy, Mannheim University of Applied Sciences, 68163 Mannheim, Germany
| | - Daniele Caroline Gueiber
- Institute of Molecular and Cell Biology, Mannheim University of Applied Sciences, 68163 Mannheim, Germany
- Interdisciplinary Center for Neurosciences, Heidelberg University, 69120 Heidelberg, Germany
- Center for Mass Spectrometry and Optical Spectroscopy, Mannheim University of Applied Sciences, 68163 Mannheim, Germany
- Department of Electronics Engineering, Federal University of Technology Paraná, Ponta Grossa 84017-220, Brazil
| | - Mathias Hafner
- Institute of Molecular and Cell Biology, Mannheim University of Applied Sciences, 68163 Mannheim, Germany
- Institute of Medical Technology, Heidelberg University and Mannheim University of Applied Sciences, 69117 Heidelberg, Germany
| | - Rüdiger Rudolf
- Institute of Molecular and Cell Biology, Mannheim University of Applied Sciences, 68163 Mannheim, Germany
- Interdisciplinary Center for Neurosciences, Heidelberg University, 69120 Heidelberg, Germany
- Center for Mass Spectrometry and Optical Spectroscopy, Mannheim University of Applied Sciences, 68163 Mannheim, Germany
- Institute of Medical Technology, Heidelberg University and Mannheim University of Applied Sciences, 69117 Heidelberg, Germany
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5
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Negro S, Pirazzini M, Rigoni M. Models and methods to study Schwann cells. J Anat 2022; 241:1235-1258. [PMID: 34988978 PMCID: PMC9558160 DOI: 10.1111/joa.13606] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2021] [Revised: 11/26/2021] [Accepted: 11/29/2021] [Indexed: 12/22/2022] Open
Abstract
Schwann cells (SCs) are fundamental components of the peripheral nervous system (PNS) of all vertebrates and play essential roles in development, maintenance, function, and regeneration of peripheral nerves. There are distinct populations of SCs including: (1) myelinating SCs that ensheath axons by a specialized plasma membrane, called myelin, which enhances the conduction of electric impulses; (2) non-myelinating SCs, including Remak SCs, which wrap bundles of multiple axons of small caliber, and perysinaptic SCs (PSCs), associated with motor axon terminals at the neuromuscular junction (NMJ). All types of SCs contribute to PNS regeneration through striking morphological and functional changes in response to nerve injury, are affected in peripheral neuropathies and show abnormalities and a diminished plasticity during aging. Therefore, methodological approaches to study and manipulate SCs in physiological and pathophysiological conditions are crucial to expand the present knowledge on SC biology and to devise new therapeutic strategies to counteract neurodegenerative conditions and age-derived denervation. We present here an updated overview of traditional and emerging methodologies for the study of SCs for scientists approaching this research field.
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Affiliation(s)
- Samuele Negro
- Department of Biomedical SciencesUniversity of PaduaPaduaItaly
| | - Marco Pirazzini
- Department of Biomedical SciencesUniversity of PaduaPaduaItaly
- CIR‐MyoCentro Interdipartimentale di Ricerca di MiologiaUniversity of PaduaPadovaItaly
| | - Michela Rigoni
- Department of Biomedical SciencesUniversity of PaduaPaduaItaly
- CIR‐MyoCentro Interdipartimentale di Ricerca di MiologiaUniversity of PaduaPadovaItaly
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Wang Q, Chen FY, Ling ZM, Su WF, Zhao YY, Chen G, Wei ZY. The Effect of Schwann Cells/Schwann Cell-Like Cells on Cell Therapy for Peripheral Neuropathy. Front Cell Neurosci 2022; 16:836931. [PMID: 35350167 PMCID: PMC8957843 DOI: 10.3389/fncel.2022.836931] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2021] [Accepted: 02/02/2022] [Indexed: 12/11/2022] Open
Abstract
Peripheral neuropathy is a common neurological issue that leads to sensory and motor disorders. Over time, the treatment for peripheral neuropathy has primarily focused on medications for specific symptoms and surgical techniques. Despite the different advantages of these treatments, functional recovery remains less than ideal. Schwann cells, as the primary glial cells in the peripheral nervous system, play crucial roles in physiological and pathological conditions by maintaining nerve structure and functions and secreting various signaling molecules and neurotrophic factors to support both axonal growth and myelination. In addition, stem cells, including mesenchymal stromal cells, skin precursor cells and neural stem cells, have the potential to differentiate into Schwann-like cells to perform similar functions as Schwann cells. Therefore, accumulating evidence indicates that Schwann cell transplantation plays a crucial role in the resolution of peripheral neuropathy. In this review, we summarize the literature regarding the use of Schwann cell/Schwann cell-like cell transplantation for different peripheral neuropathies and the potential role of promoting nerve repair and functional recovery. Finally, we discuss the limitations and challenges of Schwann cell/Schwann cell-like cell transplantation in future clinical applications. Together, these studies provide insights into the effect of Schwann cells/Schwann cell-like cells on cell therapy and uncover prospective therapeutic strategies for peripheral neuropathy.
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Affiliation(s)
- Qian Wang
- Key Laboratory of Neuroregeneration of Jiangsu and Ministry of Education, Jiangsu Clinical Medicine Center of Tissue Engineering and Nerve Injury Repair, Co-innovation Center of Neuroregeneration, Nantong University, Nantong, China
| | - Fang-Yu Chen
- Key Laboratory of Neuroregeneration of Jiangsu and Ministry of Education, Jiangsu Clinical Medicine Center of Tissue Engineering and Nerve Injury Repair, Co-innovation Center of Neuroregeneration, Nantong University, Nantong, China
| | - Zhuo-Min Ling
- Medical School of Nantong University, Nantong, China
| | - Wen-Feng Su
- Key Laboratory of Neuroregeneration of Jiangsu and Ministry of Education, Jiangsu Clinical Medicine Center of Tissue Engineering and Nerve Injury Repair, Co-innovation Center of Neuroregeneration, Nantong University, Nantong, China
| | - Ya-Yu Zhao
- Key Laboratory of Neuroregeneration of Jiangsu and Ministry of Education, Jiangsu Clinical Medicine Center of Tissue Engineering and Nerve Injury Repair, Co-innovation Center of Neuroregeneration, Nantong University, Nantong, China
| | - Gang Chen
- Key Laboratory of Neuroregeneration of Jiangsu and Ministry of Education, Jiangsu Clinical Medicine Center of Tissue Engineering and Nerve Injury Repair, Co-innovation Center of Neuroregeneration, Nantong University, Nantong, China
- Medical School of Nantong University, Nantong, China
- Department of Anesthesiology, Affiliated Hospital of Nantong University, Nantong, China
- *Correspondence: Gang Chen,
| | - Zhong-Ya Wei
- Key Laboratory of Neuroregeneration of Jiangsu and Ministry of Education, Jiangsu Clinical Medicine Center of Tissue Engineering and Nerve Injury Repair, Co-innovation Center of Neuroregeneration, Nantong University, Nantong, China
- Zhong-Ya Wei,
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Endo T, Kadoya K, Suzuki T, Suzuki Y, Terkawi MA, Kawamura D, Iwasaki N. Mature but not developing Schwann cells promote axon regeneration after peripheral nerve injury. NPJ Regen Med 2022; 7:12. [PMID: 35091563 PMCID: PMC8799715 DOI: 10.1038/s41536-022-00205-y] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2021] [Accepted: 12/20/2021] [Indexed: 02/07/2023] Open
Abstract
Since Schwann cells (SCs) support axonal growth at development as well as after peripheral nerve injury (PNI), developing SCs might be able to promote axon regeneration after PNI. The purpose of the current study was to elucidate the capability of developing SCs to induce axon regeneration after PNI. SC precursors (SCPs), immature SCs (ISCs), repair SCs (RSCs) from injured nerves, and non-RSCs from intact nerves were tested by grafting into acellular region of rat sciatic nerve with crush injury. Both of developing SCs completely failed to support axon regeneration, whereas both of mature SCs, especially RSCs, induced axon regeneration. Further, RSCs but not SCPs promoted neurite outgrowth of adult dorsal root ganglion neurons. Transcriptome analysis revealed that the gene expression profiles were distinctly different between RSCs and SCPs. These findings indicate that developing SCs are markedly different from mature SCs in terms of functional and molecular aspects and that RSC is a viable candidate for regenerative cell therapy for PNI.
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Affiliation(s)
- Takeshi Endo
- Department of Orthopaedic Surgery, Faculty of Medicine and Graduate School of Medicine, Hokkaido University, Kita-15 Nishi-7, Sapporo, Hokkaido, 060-8638, Japan
| | - Ken Kadoya
- Department of Orthopaedic Surgery, Faculty of Medicine and Graduate School of Medicine, Hokkaido University, Kita-15 Nishi-7, Sapporo, Hokkaido, 060-8638, Japan.
| | - Tomoaki Suzuki
- Department of Orthopaedic Surgery, Faculty of Medicine and Graduate School of Medicine, Hokkaido University, Kita-15 Nishi-7, Sapporo, Hokkaido, 060-8638, Japan
| | - Yuki Suzuki
- Department of Orthopaedic Surgery, Faculty of Medicine and Graduate School of Medicine, Hokkaido University, Kita-15 Nishi-7, Sapporo, Hokkaido, 060-8638, Japan
| | - Mohamad Alaa Terkawi
- Department of Orthopaedic Surgery, Faculty of Medicine and Graduate School of Medicine, Hokkaido University, Kita-15 Nishi-7, Sapporo, Hokkaido, 060-8638, Japan
| | - Daisuke Kawamura
- Department of Orthopaedic Surgery, Faculty of Medicine and Graduate School of Medicine, Hokkaido University, Kita-15 Nishi-7, Sapporo, Hokkaido, 060-8638, Japan
| | - Norimasa Iwasaki
- Department of Orthopaedic Surgery, Faculty of Medicine and Graduate School of Medicine, Hokkaido University, Kita-15 Nishi-7, Sapporo, Hokkaido, 060-8638, Japan
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8
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Hörner SJ, Couturier N, Bruch R, Koch P, Hafner M, Rudolf R. hiPSC-Derived Schwann Cells Influence Myogenic Differentiation in Neuromuscular Cocultures. Cells 2021; 10:cells10123292. [PMID: 34943800 PMCID: PMC8699767 DOI: 10.3390/cells10123292] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2021] [Revised: 11/20/2021] [Accepted: 11/21/2021] [Indexed: 12/13/2022] Open
Abstract
Motoneurons, skeletal muscle fibers, and Schwann cells form synapses, termed neuromuscular junctions (NMJs). These control voluntary body movement and are affected in numerous neuromuscular diseases. Therefore, a variety of NMJ in vitro models have been explored to enable mechanistic and pharmacological studies. So far, selective integration of Schwann cells in these models has been hampered, due to technical limitations. Here we present robust protocols for derivation of Schwann cells from human induced pluripotent stem cells (hiPSC) and their coculture with hiPSC-derived motoneurons and C2C12 muscle cells. Upon differentiation with tuned BMP signaling, Schwann cells expressed marker proteins, S100b, Gap43, vimentin, and myelin protein zero. Furthermore, they displayed typical spindle-shaped morphologies with long processes, which often aligned with motoneuron axons. Inclusion of Schwann cells in coculture experiments with hiPSC-derived motoneurons and C2C12 myoblasts enhanced myotube growth and affected size and number of acetylcholine receptor plaques on myotubes. Altogether, these data argue for the availability of a consistent differentiation protocol for Schwann cells and their amenability for functional integration into neuromuscular in vitro models, fostering future studies of neuromuscular mechanisms and disease.
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Affiliation(s)
- Sarah Janice Hörner
- Institute of Molecular and Cell Biology, Mannheim University of Applied Sciences, 68163 Mannheim, Germany; (S.J.H.); (N.C.); (R.B.); (M.H.)
- Interdisciplinary Center for Neurosciences, Heidelberg University, 69120 Heidelberg, Germany
| | - Nathalie Couturier
- Institute of Molecular and Cell Biology, Mannheim University of Applied Sciences, 68163 Mannheim, Germany; (S.J.H.); (N.C.); (R.B.); (M.H.)
| | - Roman Bruch
- Institute of Molecular and Cell Biology, Mannheim University of Applied Sciences, 68163 Mannheim, Germany; (S.J.H.); (N.C.); (R.B.); (M.H.)
| | - Philipp Koch
- Central Institute of Mental Health, Medical Faculty Mannheim of Heidelberg University, 68159 Mannheim, Germany;
- Hector Institute for Translational Brain Research (HITBR gGmbH), 68159 Mannheim, Germany
- German Cancer Research Center (DKFZ), 69120 Heidelberg, Germany
| | - Mathias Hafner
- Institute of Molecular and Cell Biology, Mannheim University of Applied Sciences, 68163 Mannheim, Germany; (S.J.H.); (N.C.); (R.B.); (M.H.)
- Institute of Medical Technology, Mannheim University of Applied Sciences and Heidelberg University, 68163 Mannheim, Germany
| | - Rüdiger Rudolf
- Institute of Molecular and Cell Biology, Mannheim University of Applied Sciences, 68163 Mannheim, Germany; (S.J.H.); (N.C.); (R.B.); (M.H.)
- Interdisciplinary Center for Neurosciences, Heidelberg University, 69120 Heidelberg, Germany
- Institute of Medical Technology, Mannheim University of Applied Sciences and Heidelberg University, 68163 Mannheim, Germany
- Correspondence:
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Cadena M, Ning L, King A, Hwang B, Jin L, Serpooshan V, Sloan SA. 3D Bioprinting of Neural Tissues. Adv Healthc Mater 2021; 10:e2001600. [PMID: 33200587 PMCID: PMC8711131 DOI: 10.1002/adhm.202001600] [Citation(s) in RCA: 60] [Impact Index Per Article: 15.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2020] [Revised: 10/19/2020] [Indexed: 02/06/2023]
Abstract
The human nervous system is a remarkably complex physiological network that is inherently challenging to study because of obstacles to acquiring primary samples. Animal models offer powerful alternatives to study nervous system development, diseases, and regenerative processes, however, they are unable to address some species-specific features of the human nervous system. In vitro models of the human nervous system have expanded in prevalence and sophistication, but still require further advances to better recapitulate microenvironmental and cellular features. The field of neural tissue engineering (TE) is rapidly adopting new technologies that enable scientists to precisely control in vitro culture conditions and to better model nervous system formation, function, and repair. 3D bioprinting is one of the major TE technologies that utilizes biocompatible hydrogels to create precisely patterned scaffolds, designed to enhance cellular responses. This review focuses on the applications of 3D bioprinting in the field of neural TE. Important design parameters are considered when bioprinting neural stem cells are discussed. The emergence of various bioprinted in vitro platforms are also reviewed for developmental and disease modeling and drug screening applications within the central and peripheral nervous systems, as well as their use as implants for in vivo regenerative therapies.
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Affiliation(s)
- Melissa Cadena
- Department of Biomedical Engineering, Emory University School of Medicine and Georgia Institute of Technology, Atlanta, GA 30322, USA
- Department of Human Genetics, Emory University School of Medicine, Atlanta, GA 30322, USA
| | - Liqun Ning
- Department of Biomedical Engineering, Emory University School of Medicine and Georgia Institute of Technology, Atlanta, GA 30322, USA
| | - Alexia King
- Department of Human Genetics, Emory University School of Medicine, Atlanta, GA 30322, USA
| | - Boeun Hwang
- Department of Biomedical Engineering, Emory University School of Medicine and Georgia Institute of Technology, Atlanta, GA 30322, USA
| | - Linqi Jin
- Department of Biomedical Engineering, Emory University School of Medicine and Georgia Institute of Technology, Atlanta, GA 30322, USA
| | - Vahid Serpooshan
- Department of Biomedical Engineering, Emory University School of Medicine and Georgia Institute of Technology, Atlanta, GA 30322, USA
- Department of Pediatrics, Emory University School of Medicine, Atlanta, GA 30322, USA
- Children’s Healthcare of Atlanta, Atlanta, GA 30322, USA
| | - Steven A. Sloan
- Department of Biomedical Engineering, Emory University School of Medicine and Georgia Institute of Technology, Atlanta, GA 30322, USA
- Department of Human Genetics, Emory University School of Medicine, Atlanta, GA 30322, USA
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10
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Shahidi S, Janmaleki M, Riaz S, Sanati Nezhad A, Syed N. A tuned gelatin methacryloyl (GelMA) hydrogel facilitates myelination of dorsal root ganglia neurons in vitro. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2021; 126:112131. [PMID: 34082948 DOI: 10.1016/j.msec.2021.112131] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/03/2020] [Revised: 04/18/2021] [Accepted: 04/19/2021] [Indexed: 12/12/2022]
Abstract
Investigating axonal myelination by Schwann cells (SCs) is crucial for understanding mechanisms underlying demyelination and remyelination, which may help gain insights into incurable disorders like neurodegenerative diseases. In this study, a gelatin-based hydrogel, gelatin methacryloyl (GelMA), was optimized to achieve the biocompatibility, porosity, mechanical stability, and degradability needed to provide high cell viability for dorsal root ganglia (DRG) neurons and SCs, and to enable their long-term coculture needed for myelination studies. The results of cell viability, neurite elongation, SC function and maturation, SC-axon interaction, and myelination were compared with two other commonly used substrates, namely collagen and Poly-d Lysine (PDL). The tuned GelMA constructs (Young's modulus of 32.6 ± 1.9 kPa and the median value of pore size of 10.3 μm) enhanced single axon generation (unlike collagen) and promoted the interaction of DRG neurons and SCs (unlike PDL). While DRG cells exhibited relatively higher viability on PDL after 48 h, i.e., 83.8%, the cells had similar survival rate on GelMA and collagen substrates, 66.7% and 61.5%, respectively. Further adjusting the hydrogel properties to achieve two distinct ranges of relatively small and large pores supported SCs to extend their processes freely and enabled physical contact with and wrapping around their corresponding axons. Staining the cells with myelin basic protein (MBA) and myelin-associated glycoprotein (MAG) revealed enhanced myelination on GelMA hydrogel compared to PDL and collagen. Moreover, the engineered porosity enhanced DRGs and SCs attachments and flexibility of movement across the substrate. This engineered hydrogel structure can now be further explored to model demyelination in neurodegenerative diseases, as well as to study the effects of various compounds on myelin regeneration.
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Affiliation(s)
- Sahar Shahidi
- Hotchkiss Brain Institute and Alberta Children's Hospital Research Institute, University of Calgary, Calgary, Alberta T2N 1N4, Canada
| | - Mohsen Janmaleki
- BioMEMS and Bioinspired Microfluidic Laboratory, Biomedical Engineering Graduate Program, University of Calgary, Calgary, T2N 1N4, Alberta, Canada; Center for BioEngineering Research and Education, University of Calgary, Calgary, T2N 1N4, Alberta, Canada
| | - Saba Riaz
- Hotchkiss Brain Institute and Alberta Children's Hospital Research Institute, University of Calgary, Calgary, Alberta T2N 1N4, Canada
| | - Amir Sanati Nezhad
- BioMEMS and Bioinspired Microfluidic Laboratory, Biomedical Engineering Graduate Program, University of Calgary, Calgary, T2N 1N4, Alberta, Canada; Center for BioEngineering Research and Education, University of Calgary, Calgary, T2N 1N4, Alberta, Canada.
| | - Naweed Syed
- Hotchkiss Brain Institute and Alberta Children's Hospital Research Institute, University of Calgary, Calgary, Alberta T2N 1N4, Canada.
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Dubey SK, Alexander A, Sivaram M, Agrawal M, Singhvi G, Sharma S, Dayaramani R. Uncovering the Diversification of Tissue Engineering on the Emergent Areas of Stem Cells, Nanotechnology and Biomaterials. Curr Stem Cell Res Ther 2020; 15:187-201. [PMID: 31957615 DOI: 10.2174/1574888x15666200103124821] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2019] [Revised: 11/11/2019] [Accepted: 11/12/2019] [Indexed: 12/23/2022]
Abstract
Damaged or disabled tissue is life-threatening due to the lack of proper treatment. Many conventional transplantation methods like autograft, iso-graft and allograft are in existence for ages, but they are not sufficient to treat all types of tissue or organ damages. Stem cells, with their unique capabilities like self-renewal and differentiate into various cell types, can be a potential strategy for tissue regeneration. However, the challenges like reproducibility, uncontrolled propagation and differentiation, isolation of specific kinds of cell and tumorigenic nature made these stem cells away from clinical application. Today, various types of stem cells like embryonic, fetal or gestational tissue, mesenchymal and induced-pluripotent stem cells are under investigation for their clinical application. Tissue engineering helps in configuring the stem cells to develop into a desired viable tissue, to use them clinically as a substitute for the conventional method. The use of stem cell-derived Extracellular Vesicles (EVs) is being studied to replace the stem cells, which decreases the immunological complications associated with the direct administration of stem cells. Tissue engineering also investigates various biomaterials to use clinically, either to replace the bones or as a scaffold to support the growth of stemcells/ tissue. Depending upon the need, there are various biomaterials like bio-ceramics, natural and synthetic biodegradable polymers to support replacement or regeneration of tissue. Like the other fields of science, tissue engineering is also incorporating the nanotechnology to develop nano-scaffolds to provide and support the growth of stem cells with an environment mimicking the Extracellular matrix (ECM) of the desired tissue. Tissue engineering is also used in the modulation of the immune system by using patient-specific Mesenchymal Stem Cells (MSCs) and by modifying the physical features of scaffolds that may provoke the immune system. This review describes the use of various stem cells, biomaterials and the impact of nanotechnology in regenerative medicine.
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Affiliation(s)
- Sunil K Dubey
- Department of Pharmacy, Birla Institute of Technology and Science, Pilani (BITS-PILANI), Pilani Campus, Rajasthan 333031, India
| | - Amit Alexander
- Department of Pharmaceutics, National Institute of Pharmaceutical Education and Research (NIPER GUWAHATI), Department of Pharmaceuticals, Ministry of Chemicals and Fertilizers, Govt. of India, NH 37, NITS Mirza, Kamrup-781125, Guwahati (Assam), India
| | - Munnangi Sivaram
- Department of Pharmacy, Birla Institute of Technology and Science, Pilani (BITS-PILANI), Pilani Campus, Rajasthan 333031, India
| | - Mukta Agrawal
- Rungta College of Pharmaceutical Sciences and Research, Kohka- Kurud Road, Bhilai, Chhattisgarh 490024, India
| | - Gautam Singhvi
- Department of Pharmacy, Birla Institute of Technology and Science, Pilani (BITS-PILANI), Pilani Campus, Rajasthan 333031, India
| | - Swapnil Sharma
- Department of Pharmacy, Banastahli Vidyapith, Tonk, Rajasthan 304022, India
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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: 7.8] [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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13
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Modeling tumors of the peripheral nervous system associated with Neurofibromatosis type 1: Reprogramming plexiform neurofibroma cells. Stem Cell Res 2020; 49:102068. [PMID: 33160273 DOI: 10.1016/j.scr.2020.102068] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/18/2020] [Revised: 10/16/2020] [Accepted: 10/20/2020] [Indexed: 11/24/2022] Open
Abstract
Plexiform neurofibromas (pNFs) are benign tumors of the peripheral nervous system (PNS) that can progress towards a deadly soft tissue sarcoma termed malignant peripheral nerve sheath tumor (MPNST). pNFs appear during development in the context of the genetic disease Neurofibromatosis type 1 (NF1) due to the complete loss of the NF1 tumor suppressor gene in a cell of the neural crest (NC) - Schwann cell (SC) axis of differentiation. NF1(-/-) cells from pNFs can be reprogrammed into induced pluripotent stem cells (iPSCs) that exhibit an increased proliferation rate and maintain full iPSC properties. Efficient protocols for iPSC differentiation towards NC and SC exist and thus NC cells can be efficiently obtained from NF1(-/-) iPSCs and further differentiated towards SCs. In this review, we will focus on the iPSC modeling of pNFs, including the reprogramming of primary pNF-derived cells, the properties of pNF-derived iPSCs, the capacity to differentiate towards the NC-SC lineage, and how well iPSC-derived NF1(-/-) SC spheroids recapitulate pNF-derived primary SCs. The potential uses of NF1(-/-) iPSCs in pNF modeling and a future outlook are discussed.
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Mittal K, Schrenk-Siemens K. Lessons from iPSC research: Insights on peripheral nerve disease. Neurosci Lett 2020; 738:135358. [PMID: 32898616 DOI: 10.1016/j.neulet.2020.135358] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2020] [Revised: 08/24/2020] [Accepted: 09/02/2020] [Indexed: 01/13/2023]
Abstract
With the publication of their breakthrough discovery describing the induction of pluripotent stem cells (iPSCs) from mouse and human fibroblasts, Takahashi and Yamanaka have changed the scientific landscape. The possibility of deriving human pluripotent stem cells from almost any somatic cell has provided the unprecedented opportunity to study specific hereditary diseases in human cells. In the context of diseases affecting peripheral nerves, iPSC platforms are now being increasingly utilized to investigate the underlying pathology as well as regenerative strategies. Peripheral neuropathies result in peripheral nerve damage, leading to - among other things - the degeneration of affected nerve fibers accompanied by severe sensory, motor and autonomic symptoms, often including intense pain. The generation of iPSCs from hereditary forms of peripheral neuropathies and their directed differentiation into cell types most affected by the disease can be instrumental to better understanding the pathological mechanisms underlying these disorders and to investigating cell replacement strategies for repair. In this minireview, we highlight studies that have used iPSCs to investigate the therapeutic potential of iPSC-derived Schwann cell-like cells for nerve regeneration, as well as studies using patient iPSC derivatives to investigate their contribution to disease pathology.
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Affiliation(s)
- Kritika Mittal
- Department of Anatomy, University of Heidelberg, Im Neuenheimer Feld 307, 69120, Heidelberg, Germany
| | - Katrin Schrenk-Siemens
- Department of Pharmacology, University of Heidelberg, Im Neuenheimer Feld 366, 69120, Heidelberg, Germany.
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15
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Hopf A, Schaefer DJ, Kalbermatten DF, Guzman R, Madduri S. Schwann Cell-Like Cells: Origin and Usability for Repair and Regeneration of the Peripheral and Central Nervous System. Cells 2020; 9:E1990. [PMID: 32872454 PMCID: PMC7565191 DOI: 10.3390/cells9091990] [Citation(s) in RCA: 38] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2020] [Revised: 08/06/2020] [Accepted: 08/22/2020] [Indexed: 12/14/2022] Open
Abstract
Functional recovery after neurotmesis, a complete transection of the nerve fiber, is often poor and requires a surgical procedure. Especially for longer gaps (>3 mm), end-to-end suturing of the proximal to the distal part is not possible, thus requiring nerve graft implantation. Artificial nerve grafts, i.e., hollow fibers, hydrogels, chitosan, collagen conduits, and decellularized scaffolds hold promise provided that these structures are populated with Schwann cells (SC) that are widely accepted to promote peripheral and spinal cord regeneration. However, these cells must be collected from the healthy peripheral nerves, resulting in significant time delay for treatment and undesired morbidities for the donors. Therefore, there is a clear need to explore the viable source of cells with a regenerative potential similar to SC. For this, we analyzed the literature for the generation of Schwann cell-like cells (SCLC) from stem cells of different origins (i.e., mesenchymal stem cells, pluripotent stem cells, and genetically programmed somatic cells) and compared their biological performance to promote axonal regeneration. Thus, the present review accounts for current developments in the field of SCLC differentiation, their applications in peripheral and central nervous system injury, and provides insights for future strategies.
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Affiliation(s)
- Alois Hopf
- Department of Biomedical Engineering, University of Basel, Gewerbestrasse 14, 4123 Allschwil, Switzerland; (A.H.); (D.F.K.)
- Department of Biomedicine, University Hospital Basel, Hebelstrasse 20, 4031 Basel, Switzerland; (D.J.S.); (R.G.)
| | - Dirk J. Schaefer
- Department of Biomedicine, University Hospital Basel, Hebelstrasse 20, 4031 Basel, Switzerland; (D.J.S.); (R.G.)
- Department of Plastic, Reconstructive, Aesthetic and Hand Surgery, University Hospital Basel, University of Basel, Spitalstrasse 21, 4031 Basel, Switzerland
| | - Daniel F. Kalbermatten
- Department of Biomedical Engineering, University of Basel, Gewerbestrasse 14, 4123 Allschwil, Switzerland; (A.H.); (D.F.K.)
- Department of Plastic, Reconstructive, Aesthetic and Hand Surgery, University Hospital Basel, University of Basel, Spitalstrasse 21, 4031 Basel, Switzerland
| | - Raphael Guzman
- Department of Biomedicine, University Hospital Basel, Hebelstrasse 20, 4031 Basel, Switzerland; (D.J.S.); (R.G.)
- Department of Neurosurgery, University Hospital Basel, Spitalstrasse 21, 4031 Basel, Switzerland
| | - Srinivas Madduri
- Department of Biomedical Engineering, University of Basel, Gewerbestrasse 14, 4123 Allschwil, Switzerland; (A.H.); (D.F.K.)
- Department of Biomedicine, University Hospital Basel, Hebelstrasse 20, 4031 Basel, Switzerland; (D.J.S.); (R.G.)
- Department of Plastic, Reconstructive, Aesthetic and Hand Surgery, University Hospital Basel, University of Basel, Spitalstrasse 21, 4031 Basel, Switzerland
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16
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Mehrotra P, Tseropoulos G, Bronner ME, Andreadis ST. Adult tissue-derived neural crest-like stem cells: Sources, regulatory networks, and translational potential. Stem Cells Transl Med 2019; 9:328-341. [PMID: 31738018 PMCID: PMC7031649 DOI: 10.1002/sctm.19-0173] [Citation(s) in RCA: 34] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2019] [Revised: 10/22/2019] [Accepted: 10/25/2019] [Indexed: 12/15/2022] Open
Abstract
Neural crest (NC) cells are a multipotent stem cell population that give rise to a diverse array of cell types in the body, including peripheral neurons, Schwann cells (SC), craniofacial cartilage and bone, smooth muscle cells, and melanocytes. NC formation and differentiation into specific lineages takes place in response to a set of highly regulated signaling and transcriptional events within the neural plate border. Premigratory NC cells initially are contained within the dorsal neural tube from which they subsequently emigrate, migrating to often distant sites in the periphery. Following their migration and differentiation, some NC‐like cells persist in adult tissues in a nascent multipotent state, making them potential candidates for autologous cell therapy. This review discusses the gene regulatory network responsible for NC development and maintenance of multipotency. We summarize the genes and signaling pathways that have been implicated in the differentiation of a postmigratory NC into mature myelinating SC. We elaborate on the signals and transcription factors involved in the acquisition of immature SC fate, axonal sorting of unmyelinated neuronal axons, and finally the path toward mature myelinating SC, which envelope axons within myelin sheaths, facilitating electrical signal propagation. The gene regulatory events guiding development of SC in vivo provides insights into means for differentiating NC‐like cells from adult human tissues into functional SC, which have the potential to provide autologous cell sources for the treatment of demyelinating and neurodegenerative disorders.
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Affiliation(s)
- Pihu Mehrotra
- Department of Chemical and Biological Engineering, University at Buffalo, Buffalo, New York
| | - Georgios Tseropoulos
- Department of Chemical and Biological Engineering, University at Buffalo, Buffalo, New York
| | - Marianne E Bronner
- Division of Biology and Biological Engineering, California Institute of Technology, Pasadena, California
| | - Stelios T Andreadis
- Department of Chemical and Biological Engineering, University at Buffalo, Buffalo, New York.,Center of Excellence in Bioinformatics and Life Sciences, Buffalo, New York.,Department of Biomedical Engineering, University at Buffalo, Buffalo, New York
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17
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Lotfi L, Khakbiz M, Moosazadeh Moghaddam M, Bonakdar S. A biomaterials approach to Schwann cell development in neural tissue engineering. J Biomed Mater Res A 2019; 107:2425-2446. [DOI: 10.1002/jbm.a.36749] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2018] [Revised: 02/08/2019] [Accepted: 05/07/2019] [Indexed: 12/16/2022]
Affiliation(s)
- Leila Lotfi
- Department of Life Science Engineering, Faculty of New Sciences and TechnologiesUniversity of Tehran Tehran Iran
| | - Mehrdad Khakbiz
- Department of Life Science Engineering, Faculty of New Sciences and TechnologiesUniversity of Tehran Tehran Iran
| | | | - Shahin Bonakdar
- National Cell Bank DepartmentPasteur Institute of Iran Tehran Iran
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18
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Li Y, Yu Z, Men Y, Chen X, Wang B. Laminin-chitosan-PLGA conduit co-transplanted with Schwann and neural stem cells to repair the injured recurrent laryngeal nerve. Exp Ther Med 2018; 16:1250-1258. [PMID: 30116376 PMCID: PMC6090254 DOI: 10.3892/etm.2018.6343] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2015] [Accepted: 03/10/2017] [Indexed: 12/23/2022] Open
Abstract
The aim of the present study was to assess the possibility and efficacy of utilizing a laminin-chitosan-poly (lactic-co-glycolic acid), otherwise known as laminin-chitosan-PLGA, nerve conduit with the co-transplantation of Schwann and neural stem cells to repair peripheral nerve defects. Previous in vitro experiments have demonstrated that the three-dimensional structure of the built in fiber filament electrospinning of laminin-chitosan-PLGA nerve conduit is beneficial to the migration and regeneration of nerve cells, and has notable mechanical strength and plasticity. It is able to provide support in the neural tissue regeneration process, and has the ability to degrade itself once peripheral nerves complete their regeneration, providing more advantages than other biological and synthetic materials. In the present study, 132 female Sprague Dawley rats were used to establish an animal model of laryngeal nerve injury, and the rats were randomly divided into six groups for experimentation. The nerve conduit was prepared and co-cultured with Schwann and neural stem cells, and micro-surgical techniques were used to repair the 5-mm-long recurrent laryngeal nerve injuries. Functional and histological assessments were performed at 8 and 12 weeks post-surgery, respectively. The results revealed that the laminin-chitosan-PLGA nerve conduit combined with Schwann and neural stem cells was able to promote nerve regeneration (P<0.05), and its effect was superior to those of the autograft (P<0.05). The results of the present study suggest that this is the ideal method for repairing peripheral nerve defects, and cells in the graft may promote nerve regeneration.
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Affiliation(s)
- Yu Li
- Department of Otolaryngology, Head and Neck Surgery, Shanghai General Hospital, Shanghai JiaoTong University School of Medicine, Shanghai 200000, P.R. China
| | - Ziwei Yu
- Department of Otolaryngology, Head and Neck Surgery, Shanghai General Hospital, Shanghai JiaoTong University School of Medicine, Shanghai 200000, P.R. China
| | - Yongzhi Men
- Department of Otolaryngology, Head and Neck Surgery, Shanghai General Hospital, Shanghai JiaoTong University School of Medicine, Shanghai 200000, P.R. China
| | - Xinwei Chen
- Department of Otolaryngology, Head and Neck Surgery, Shanghai General Hospital, Shanghai JiaoTong University School of Medicine, Shanghai 200000, P.R. China
| | - Baoxin Wang
- Department of Otolaryngology, Head and Neck Surgery, Shanghai General Hospital, Shanghai JiaoTong University School of Medicine, Shanghai 200000, P.R. China
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19
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Furlan A, Adameyko I. Schwann cell precursor: a neural crest cell in disguise? Dev Biol 2018; 444 Suppl 1:S25-S35. [PMID: 29454705 DOI: 10.1016/j.ydbio.2018.02.008] [Citation(s) in RCA: 104] [Impact Index Per Article: 14.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2017] [Revised: 02/14/2018] [Accepted: 02/14/2018] [Indexed: 01/19/2023]
Abstract
Schwann cell precursors (SCPs) are multipotent embryonic progenitors covering all developing peripheral nerves. These nerves grow and navigate with unprecedented precision, delivering SCP progenitors to almost all locations in the embryonic body. Within specific developing tissues, SCPs detach from nerves and generate neuroendocrine cells, autonomic neurons, mature Schwann cells, melanocytes and other cell types. These properties of SCPs evoke resemblances between them and their parental population, namely, neural crest cells. Neural crest cells are incredibly multipotent migratory cells that revolutionized the course of evolution in the lineage of early chordate animals. Given this similarity and recent data, it is possible to hypothesize that proto-neural crest cells are similar to SCPs spreading along the nerves. Here, we review the multipotency of SCPs, the signals that govern them, their potential therapeutic value, SCP's embryonic origin and their evolutionary connections. We dedicate this article to the memory of Wilhelm His, the father of the microtome and "Zwischenstrang", currently known as the neural crest.
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Affiliation(s)
- Alessandro Furlan
- Cold Spring Harbor Laboratory, Cold Spring Harbor, New York 11724 USA
| | - Igor Adameyko
- Department of Physiology and Pharmacology, Karolinska Institutet, 17177 Stockholm, Sweden; Center for Brain Research, Medical University Vienna, 1090 Vienna, Austria.
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20
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Muhammad AKMG, Kim K, Epifantseva I, Aghamaleky-Sarvestany A, Simpkinson ME, Carmona S, Landeros J, Bell S, Svaren J, Baloh RH. Cell transplantation strategies for acquired and inherited disorders of peripheral myelin. Ann Clin Transl Neurol 2018; 5:186-200. [PMID: 29468179 PMCID: PMC5817839 DOI: 10.1002/acn3.517] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2017] [Revised: 11/27/2017] [Accepted: 12/01/2017] [Indexed: 01/26/2023] Open
Abstract
Objective To investigate transplantation of rat Schwann cells or human iPSC-derived neural crest cells and derivatives into models of acquired and inherited peripheral myelin damage. Methods Primary cultured rat Schwann cells labeled with a fluorescent protein for monitoring at various times after transplantation. Human-induced pluripotent stem cells (iPSCs) were differentiated into neural crest stem cells, and subsequently toward a Schwann cell lineage via two different protocols. Cell types were characterized using flow cytometry, immunocytochemistry, and transcriptomics. Rat Schwann cells and human iPSC derivatives were transplanted into (1) nude rats pretreated with lysolecithin to induce demyelination or (2) a transgenic rat model of dysmyelination due to PMP22 overexpression. Results Rat Schwann cells transplanted into sciatic nerves with either toxic demyelination or genetic dysmyelination engrafted successfully, and migrated longitudinally for relatively long distances, with more limited axial migration. Transplanted Schwann cells engaged existing axons and displaced dysfunctional Schwann cells to form normal-appearing myelin. Human iPSC-derived neural crest stem cells and their derivatives shared similar engraftment and migration characteristics to rat Schwann cells after transplantation, but did not further differentiate into Schwann cells or form myelin. Interpretation These results indicate that cultured Schwann cells surgically delivered to peripheral nerve can engraft and form myelin in either acquired or inherited myelin injury, as proof of concept for pursuing cell therapy for diseases of peripheral nerve. However, lack of reliable technology for generating human iPSC-derived Schwann cells for transplantation therapy remains a barrier in the field.
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Affiliation(s)
- A K M G Muhammad
- Board of Governors Regenerative Medicine Institute Cedars-Sinai Medical Center 8700 Beverly Boulevard Los Angeles California 90048
| | - Kevin Kim
- Board of Governors Regenerative Medicine Institute Cedars-Sinai Medical Center 8700 Beverly Boulevard Los Angeles California 90048
| | - Irina Epifantseva
- Board of Governors Regenerative Medicine Institute Cedars-Sinai Medical Center 8700 Beverly Boulevard Los Angeles California 90048
| | - Arwin Aghamaleky-Sarvestany
- Board of Governors Regenerative Medicine Institute Cedars-Sinai Medical Center 8700 Beverly Boulevard Los Angeles California 90048
| | - Megan E Simpkinson
- Board of Governors Regenerative Medicine Institute Cedars-Sinai Medical Center 8700 Beverly Boulevard Los Angeles California 90048
| | - Sharon Carmona
- Board of Governors Regenerative Medicine Institute Cedars-Sinai Medical Center 8700 Beverly Boulevard Los Angeles California 90048
| | - Jesse Landeros
- Board of Governors Regenerative Medicine Institute Cedars-Sinai Medical Center 8700 Beverly Boulevard Los Angeles California 90048
| | - Shaughn Bell
- Board of Governors Regenerative Medicine Institute Cedars-Sinai Medical Center 8700 Beverly Boulevard Los Angeles California 90048
| | - John Svaren
- Waisman Center and Department of Comparative Biosciences University of Wisconsin-Madison Madison Wisconsin 53706
| | - Robert H Baloh
- Board of Governors Regenerative Medicine Institute Cedars-Sinai Medical Center 8700 Beverly Boulevard Los Angeles California 90048.,Department of Neurology Cedars-Sinai Medical Center 8700 Beverly Boulevard Los Angeles California 90048
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21
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Madigan NN, Staff NP, Windebank AJ, Benarroch EE. Genome editing technologies and their potential to treat neurologic disease. Neurology 2017; 89:1739-1748. [PMID: 28931646 DOI: 10.1212/wnl.0000000000004558] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022] Open
Affiliation(s)
| | - Nathan P Staff
- From the Department of Neurology, Mayo Clinic, Rochester, MN
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22
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Bunge MB, Monje PV, Khan A, Wood PM. From transplanting Schwann cells in experimental rat spinal cord injury to their transplantation into human injured spinal cord in clinical trials. PROGRESS IN BRAIN RESEARCH 2017; 231:107-133. [PMID: 28554394 DOI: 10.1016/bs.pbr.2016.12.012] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Among the potential therapies designed to repair the injured spinal cord is cell transplantation, notably the use of autologous adult human Schwann cells (SCs). Here, we detail some of the critical research accomplished over the last four decades to establish a foundation that enables these cells to be tested in clinical trials. New culture systems allowed novel information to be gained about SCs, including discovering ways to stimulate their proliferation to acquire adequately large numbers for transplantation into the injured human spinal cord. Transplantation of rat SCs into rat models of spinal cord injury has demonstrated that SCs promote repair of injured spinal cord. Additional work required to gain approval from the Food and Drug Administration for the first SC trial in the Miami Project is disclosed. This trial and a second one now underway are described.
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Affiliation(s)
- Mary B Bunge
- The Miami Project to Cure Paralysis, University of Miami Leonard M. Miller School of Medicine, Miami, FL, United States; Department of Cell Biology, University of Miami Leonard M. Miller School of Medicine, Miami, FL, United States; Department of Neurological Surgery, University of Miami Leonard M. Miller School of Medicine, Miami, FL, United States.
| | - Paula V Monje
- The Miami Project to Cure Paralysis, University of Miami Leonard M. Miller School of Medicine, Miami, FL, United States; Department of Neurological Surgery, University of Miami Leonard M. Miller School of Medicine, Miami, FL, United States
| | - Aisha Khan
- The Interdisciplinary Stem Cell Institute, University of Miami Leonard M. Miller School of Medicine, Miami, FL, United States
| | - Patrick M Wood
- The Miami Project to Cure Paralysis, University of Miami Leonard M. Miller School of Medicine, Miami, FL, United States; Department of Neurological Surgery, University of Miami Leonard M. Miller School of Medicine, Miami, FL, United States
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23
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Xie S, Lu F, Han J, Tao K, Wang H, Simental A, Hu D, Yang H. Efficient generation of functional Schwann cells from adipose-derived stem cells in defined conditions. Cell Cycle 2017; 16:841-851. [PMID: 28296571 DOI: 10.1080/15384101.2017.1304328] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
Abstract
Schwann cells (SCs) are hitherto regarded as the most promising candidates for viable cell-based therapy to peripheral nervous system (PNS) injuries or degenerative diseases. However, the extreme drawbacks of transplanting autologous SCs for clinical applications still represent a significant bottleneck in neural regenerative medicine, mainly owing to the need of sacrificing a functional nerve to generate autologous SCs and the nature of slow expansion of the SCs. Thus, it is of great importance to establish an alternative cell system for the generation of sufficient SCs. Here, we demonstrated that adipose-derived stem cells (ADSCs) of rat robustly give rise to morphological, phenotypic and functional SCs using an optimized protocol. After undergoing a 3-week in vitro differentiation, almost all of treated ADSCs exhibited spindle shaped morphology similar to genuine SCs and expressed SC markers GFAP and S100. Most importantly, apart from acquisition of SC antigenic and biochemical features, the ADSC-derived SCs were functionally identical to native SCs as they possess a potential ability to form myelin, and secret nerve growth factor (NGF), brain-derived neurotrophic factor (BDNF) and glia-derived neurotrophic factor (GDNF). The current study may provide an ideal strategy for harvesting sufficient SCs for cell-based treatment of various peripheral nerve injuries or disorders.
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Affiliation(s)
- Songtao Xie
- a Department of Burn Surgery , Xijing Hospital, Fourth Military Medical University, Xi'an PR China State Key Laboratory of Cancer Biology, Xijing Hospital Fourth Military Medical University , Xi'an , Shaanxi Province , China
| | - Fan Lu
- b Department of Biochemistry and Molecular Biology , China State Key Laboratory of Cancer Biology, Fourth Military Medical University , Xi'an , Shaanxi Province , China
| | - Juntao Han
- a Department of Burn Surgery , Xijing Hospital, Fourth Military Medical University, Xi'an PR China State Key Laboratory of Cancer Biology, Xijing Hospital Fourth Military Medical University , Xi'an , Shaanxi Province , China
| | - Ke Tao
- a Department of Burn Surgery , Xijing Hospital, Fourth Military Medical University, Xi'an PR China State Key Laboratory of Cancer Biology, Xijing Hospital Fourth Military Medical University , Xi'an , Shaanxi Province , China
| | - Hongtao Wang
- a Department of Burn Surgery , Xijing Hospital, Fourth Military Medical University, Xi'an PR China State Key Laboratory of Cancer Biology, Xijing Hospital Fourth Military Medical University , Xi'an , Shaanxi Province , China
| | - Alfred Simental
- c Department of Otolaryngology-Head and Neck Surgery , Loma Linda University Medical Center , Loma Linda , CA , USA
| | - Dahai Hu
- a Department of Burn Surgery , Xijing Hospital, Fourth Military Medical University, Xi'an PR China State Key Laboratory of Cancer Biology, Xijing Hospital Fourth Military Medical University , Xi'an , Shaanxi Province , China
| | - Hao Yang
- d Translational Medicine Center , Hong Hui Hospital, Xi'an Jiaotong University , Xi'an , Shaanxi , China
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24
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Jiang L, Jones S, Jia X. Stem Cell Transplantation for Peripheral Nerve Regeneration: Current Options and Opportunities. Int J Mol Sci 2017; 18:ijms18010094. [PMID: 28067783 PMCID: PMC5297728 DOI: 10.3390/ijms18010094] [Citation(s) in RCA: 138] [Impact Index Per Article: 17.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2016] [Revised: 12/26/2016] [Accepted: 12/27/2016] [Indexed: 12/21/2022] Open
Abstract
Peripheral nerve regeneration is a complicated process highlighted by Wallerian degeneration, axonal sprouting, and remyelination. Schwann cells play an integral role in multiple facets of nerve regeneration but obtaining Schwann cells for cell-based therapy is limited by the invasive nature of harvesting and donor site morbidity. Stem cell transplantation for peripheral nerve regeneration offers an alternative cell-based therapy with several regenerative benefits. Stem cells have the potential to differentiate into Schwann-like cells that recruit macrophages for removal of cellular debris. They also can secrete neurotrophic factors to promote axonal growth, and remyelination. Currently, various types of stem cell sources are being investigated for their application to peripheral nerve regeneration. This review highlights studies involving the stem cell types, the mechanisms of their action, methods of delivery to the injury site, and relevant pre-clinical or clinical data. The purpose of this article is to review the current point of view on the application of stem cell based strategy for peripheral nerve regeneration.
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Affiliation(s)
- Liangfu Jiang
- Department of Orthopaedics, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou 325027, China.
| | - Salazar Jones
- Department of Neurosurgery, University of Maryland School of Medicine, Baltimore, MD 21201, USA.
| | - Xiaofeng Jia
- Department of Orthopaedics, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou 325027, China.
- Department of Neurosurgery, University of Maryland School of Medicine, Baltimore, MD 21201, USA.
- Department of Orthopaedics, University of Maryland School of Medicine, Baltimore, MD 21201, USA.
- Department of Anatomy and Neurobiology, University of Maryland School of Medicine, Baltimore, MD 21201, USA.
- Department of Biomedical Engineering, The Johns Hopkins University School of Medicine, Baltimore, MD 21205, USA.
- Department of Anesthesiology and Critical Care Medicine, The Johns Hopkins University School of Medicine, Baltimore, MD 21205, USA.
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25
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Harschnitz O, van den Berg LH, Johansen LE, Jansen MD, Kling S, Vieira de Sá R, Vlam L, van Rheenen W, Karst H, Wierenga CJ, Pasterkamp RJ, van der Pol WL. Autoantibody pathogenicity in a multifocal motor neuropathy induced pluripotent stem cell-derived model. Ann Neurol 2016; 80:71-88. [DOI: 10.1002/ana.24680] [Citation(s) in RCA: 43] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2015] [Revised: 04/25/2016] [Accepted: 04/25/2016] [Indexed: 12/13/2022]
Affiliation(s)
- Oliver Harschnitz
- Department of Neurology and Neurosurgery; University Medical Center Utrecht; Brain Center Rudolf Magnus Utrecht the Netherlands
- Department of Translational Neuroscience; University Medical Center Utrecht; Brain Center Rudolf Magnus Utrecht the Netherlands
| | - Leonard H. van den Berg
- Department of Neurology and Neurosurgery; University Medical Center Utrecht; Brain Center Rudolf Magnus Utrecht the Netherlands
| | - Lill Eva Johansen
- Department of Translational Neuroscience; University Medical Center Utrecht; Brain Center Rudolf Magnus Utrecht the Netherlands
| | - Marc D. Jansen
- Department of Neurology and Neurosurgery; University Medical Center Utrecht; Brain Center Rudolf Magnus Utrecht the Netherlands
| | - Sandra Kling
- Department of Neurology and Neurosurgery; University Medical Center Utrecht; Brain Center Rudolf Magnus Utrecht the Netherlands
| | - Renata Vieira de Sá
- Department of Translational Neuroscience; University Medical Center Utrecht; Brain Center Rudolf Magnus Utrecht the Netherlands
| | - Lotte Vlam
- Department of Translational Neuroscience; University Medical Center Utrecht; Brain Center Rudolf Magnus Utrecht the Netherlands
| | - Wouter van Rheenen
- Department of Neurology and Neurosurgery; University Medical Center Utrecht; Brain Center Rudolf Magnus Utrecht the Netherlands
- Department of Translational Neuroscience; University Medical Center Utrecht; Brain Center Rudolf Magnus Utrecht the Netherlands
| | - Henk Karst
- Department of Translational Neuroscience; University Medical Center Utrecht; Brain Center Rudolf Magnus Utrecht the Netherlands
| | - Corette J. Wierenga
- Division of Cell Biology, Department of Biology, Faculty of Science; Utrecht University; Utrecht the Netherlands
| | - R. Jeroen Pasterkamp
- Department of Translational Neuroscience; University Medical Center Utrecht; Brain Center Rudolf Magnus Utrecht the Netherlands
| | - W. Ludo van der Pol
- Department of Neurology and Neurosurgery; University Medical Center Utrecht; Brain Center Rudolf Magnus Utrecht the Netherlands
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26
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Use of engineered Schwann cells in peripheral neuropathy: Hopes and hazards. Brain Res 2016; 1638:97-104. [DOI: 10.1016/j.brainres.2015.10.040] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2015] [Accepted: 10/23/2015] [Indexed: 01/16/2023]
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27
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Shi H, Gong Y, Qiang L, Li X, Zhang S, Gao J, Li K, Ji X, Tian L, Gu X, Ding F. Derivation of Schwann cell precursors from neural crest cells resident in bone marrow for cell therapy to improve peripheral nerve regeneration. Biomaterials 2016; 89:25-37. [DOI: 10.1016/j.biomaterials.2016.02.029] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2015] [Revised: 02/17/2016] [Accepted: 02/19/2016] [Indexed: 12/16/2022]
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28
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Faroni A, Smith RJP, Lu L, Reid AJ. Human Schwann-like cells derived from adipose-derived mesenchymal stem cells rapidly de-differentiate in the absence of stimulating medium. Eur J Neurosci 2016; 43:417-30. [PMID: 26309136 PMCID: PMC4744694 DOI: 10.1111/ejn.13055] [Citation(s) in RCA: 49] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2015] [Revised: 08/13/2015] [Accepted: 08/20/2015] [Indexed: 01/24/2023]
Abstract
Finding a viable cell-based therapy to address peripheral nerve injury holds promise for enhancing the currently suboptimal microsurgical approaches to peripheral nerve repair. Autologous nerve grafting is the current gold standard for surgical repair of nerve gaps; however, this causes donor nerve morbidity in the patient, and the results remain unsatisfactory. Transplanting autologous Schwann cells (SCs) results in similar morbidity, as well as limited cell numbers and restricted potential for expansion in vitro. Adipose-derived stem cells (ASCs), 'differentiated' towards an SC-like phenotype in vitro (dASCs), have been presented as an alternative to SC therapies. The differentiation protocol stimulates ASCs to mimic the SC phenotype; however, the efficacy of dASCs in nerve repair is not yet convincing, and the practicality of the SC-like phenotype is unproven. Here, we examined the stability of dASCs by withdrawing differentiation medium for 72 h after the full 18-day differentiation protocol, and measuring changes in morphology, gene expression, and protein levels. Withdrawal of differentiation medium from dASCs resulted in a rapid reversion to stem cell-like characteristics. Quantitative real-time polymerase chain reaction and enzyme-linked immunosorbent assay analyses demonstrated a significant reduction in gene and protein expression of growth factors that were expressed at high levels following 'differentiation'. Therefore, we question the relevance of differentiation to an SC-like phenotype, as withdrawal of differentiation medium, a model of transplantation into an injured nerve, results in rapid reversion of the dASC phenotype to stem cell-like characteristics. Further investigation into the differentiation process and the response of dASCs to an injured environment must be undertaken prior to the use of dASCs in peripheral nerve repair therapies.
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Affiliation(s)
- Alessandro Faroni
- Blond McIndoe Laboratories, Stopford BuildingCentre for Tissue Injury and RepairInstitute of Inflammation and RepairUniversity of ManchesterOxford RoadManchesterM13 9PTUK
| | - Richard J. P. Smith
- Blond McIndoe Laboratories, Stopford BuildingCentre for Tissue Injury and RepairInstitute of Inflammation and RepairUniversity of ManchesterOxford RoadManchesterM13 9PTUK
| | - Li Lu
- Blond McIndoe Laboratories, Stopford BuildingCentre for Tissue Injury and RepairInstitute of Inflammation and RepairUniversity of ManchesterOxford RoadManchesterM13 9PTUK
- Department of PharmacologySchool of Basic MedicineLanzhou UniversityLanzhouChina
| | - Adam J. Reid
- Blond McIndoe Laboratories, Stopford BuildingCentre for Tissue Injury and RepairInstitute of Inflammation and RepairUniversity of ManchesterOxford RoadManchesterM13 9PTUK
- Department of Plastic Surgery & BurnsUniversity Hospital of South ManchesterManchesterUK
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29
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Ekins S, Litterman NK, Arnold RJG, Burgess RW, Freundlich JS, Gray SJ, Higgins JJ, Langley B, Willis DE, Notterpek L, Pleasure D, Sereda MW, Moore A. A brief review of recent Charcot-Marie-Tooth research and priorities. F1000Res 2015; 4:53. [PMID: 25901280 PMCID: PMC4392824 DOI: 10.12688/f1000research.6160.1] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 02/24/2015] [Indexed: 12/14/2022] Open
Abstract
This brief review of current research progress on Charcot-Marie-Tooth (CMT) disease is a summary of discussions initiated at the Hereditary Neuropathy Foundation (HNF) scientific advisory board meeting on November 7, 2014. It covers recent published and unpublished
in vitro and
in vivo research. We discuss recent promising preclinical work for CMT1A, the development of new biomarkers, the characterization of different animal models, and the analysis of the frequency of gene mutations in patients with CMT. We also describe how progress in related fields may benefit CMT therapeutic development, including the potential of gene therapy and stem cell research. We also discuss the potential to assess and improve the quality of life of CMT patients. This summary of CMT research identifies some of the gaps which may have an impact on upcoming clinical trials. We provide some priorities for CMT research and areas which HNF can support. The goal of this review is to inform the scientific community about ongoing research and to avoid unnecessary overlap, while also highlighting areas ripe for further investigation. The general collaborative approach we have taken may be useful for other rare neurological diseases.
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Affiliation(s)
- Sean Ekins
- Hereditary Neuropathy Foundation, New York, NY, 10016, USA ; Collaborations in Chemistry, Fuquay Varina, NC, 27526, USA ; Collaborative Drug Discovery, Burlingame, CA, 94010, USA
| | | | - Renée J G Arnold
- Arnold Consultancy & Technology LLC, New York, NY, 10023, USA ; Master of Public Health Program, Mount Sinai School of Medicine, New York, NY, 10029, USA ; Quorum Consulting, Inc, San Francisco, CA, 94104, USA
| | - Robert W Burgess
- The Jackson Laboratory in Bar Harbor, Bar Harbour, ME, 04609, USA
| | - Joel S Freundlich
- Department of Medicine, Center for Emerging and Reemerging Pathogens, Rutgers University - New Jersey Medical School, Newark, NJ, 07103, USA
| | - Steven J Gray
- Gene Therapy Center and Dept. of Ophthalmology, University of North Carolina at Chapel Hill, Chapel Hill, NC, 27599-7352, USA
| | | | - Brett Langley
- Burke-Cornell Medical Research Institute, White Plains, NY, 10605, USA ; Department of Neurology and Neuroscience, Weill Medical College of Cornell University, New York, NY, 10065, USA
| | - Dianna E Willis
- Burke-Cornell Medical Research Institute, White Plains, NY, 10605, USA
| | - Lucia Notterpek
- Department of Neuroscience, College of Medicine, McKnight Brain Institute, University of Florida, Gainesville, FL, 32611, USA
| | - David Pleasure
- Institute for Pediatric Regenerative Medicine, University of California Davis, School of Medicine, Sacramento, CA, 95817, USA ; Department of Neurology, University of California, Davis, School of Medicine, c/o Shriners Hospital, Sacramento, CA, 95817, USA
| | - Michael W Sereda
- Department of Neurogenetics, Max Planck Institute (MPI) of Experimental Medicine, Göttingen, 37075, Germany ; Department of Clinical Neurophysiology, University Medical Center (UMG), Göttingen, D-37075, Germany
| | - Allison Moore
- Hereditary Neuropathy Foundation, New York, NY, 10016, USA
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