1
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Stepanova OV, Fursa GA, Andretsova SS, Karsuntseva EK, Shishkina VS, Chadin AV, Voronova AD, Semkina AS, Reshetov IV, Chekhonin VP. Transduced Olfactory Mucosa Cells Expressing Nerve Growth Factor for the Therapy of Experimental Spinal Cord Cysts. Bull Exp Biol Med 2024; 177:552-558. [PMID: 39266922 DOI: 10.1007/s10517-024-06222-9] [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: 12/08/2023] [Indexed: 09/14/2024]
Abstract
A new gene-cell construct expressing nerve growth factor (NGF) has been developed. After obtaining engineered adenovectors Ad5-RGD-CAG-NGF and Ad5-RGD-CAG-EGFP, transduction efficiency and transgene expression were studied and multiplicity of infection was determined. The efficacy of transduced human olfactory ensheathing cells expressing NGF in restoring motor activity in rats has been shown in a limited period of time. Improved rat hindlimb mobility and cyst size reduction after gene-cell construct transplantation were more likely due to the cellular component of the construct.
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Affiliation(s)
- O V Stepanova
- V. Serbsky National Medical Research Centre for Psychiatry and Narcology, Ministry of Health of the Russian Federation, Moscow, Russia.
- National Medical Research Centre of Cardiology named after academician E. I. Chazov, Ministry of Health of the Russian Federation, Moscow, Russia.
| | - G A Fursa
- V. Serbsky National Medical Research Centre for Psychiatry and Narcology, Ministry of Health of the Russian Federation, Moscow, Russia
- Pirogov Russian National Research Medical University, Moscow, Russia
- National Medical Research Centre of Cardiology named after academician E. I. Chazov, Ministry of Health of the Russian Federation, Moscow, Russia
| | - S S Andretsova
- V. Serbsky National Medical Research Centre for Psychiatry and Narcology, Ministry of Health of the Russian Federation, Moscow, Russia
- Lomonosov Moscow State University, Moscow, Russia
| | - E K Karsuntseva
- V. Serbsky National Medical Research Centre for Psychiatry and Narcology, Ministry of Health of the Russian Federation, Moscow, Russia
| | - V S Shishkina
- V. Serbsky National Medical Research Centre for Psychiatry and Narcology, Ministry of Health of the Russian Federation, Moscow, Russia
| | - A V Chadin
- V. Serbsky National Medical Research Centre for Psychiatry and Narcology, Ministry of Health of the Russian Federation, Moscow, Russia
| | - A D Voronova
- V. Serbsky National Medical Research Centre for Psychiatry and Narcology, Ministry of Health of the Russian Federation, Moscow, Russia
| | - A S Semkina
- V. Serbsky National Medical Research Centre for Psychiatry and Narcology, Ministry of Health of the Russian Federation, Moscow, Russia
- Pirogov Russian National Research Medical University, Moscow, Russia
| | - I V Reshetov
- University Clinical Hospital No. 1, I. M. Sechenov First Moscow State Medical University, Ministry of Health of the Russian Federation (Sechenov University), Moscow, Russia
| | - V P Chekhonin
- V. Serbsky National Medical Research Centre for Psychiatry and Narcology, Ministry of Health of the Russian Federation, Moscow, Russia
- Pirogov Russian National Research Medical University, Moscow, Russia
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2
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Zhang C, Morozova AY, Abakumov MA, Mel'nikov PA, Gabashvili AN, Chekhonin VP. Evaluation of the Optimal Number of Implanted Mesenchymal Stem Cells for the Treatment of Post-Traumatic Syrinx and Recovery of Motor Activity after Chronic Spinal Cord Injury. Bull Exp Biol Med 2023; 175:557-568. [PMID: 37773573 DOI: 10.1007/s10517-023-05904-0] [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: 05/12/2023] [Indexed: 10/01/2023]
Abstract
The present work aims at determining the most effective dose (number) of mesenchymal stem cells (MSC) for its transplantation in order to treat chronic spinal cord injury (SCI) in mature Sprague-Dawley rats (n=24). MSC were obtained from bone marrow of 4-6-month-old Sprague-Dawley rats. Four weeks after SCI, MSC suspension (4 μl) was injected to experimental animals into the injured area in doses of 4×105, 8×105, or 106. Using MRI, diffusion tensor imaging (DTI), diffusion tensor tractography (DTT), immunohistochemistry, histological staining, and behavioral tests, we studied the effect of transplantation of MSC in different doses on the following parameters in rats with SCI: the size of lesion cavity and post-traumatic syrinx (PTS), glial scar formation, neuronal fibers remodeling, axonal regeneration and sprouting, vascularization, expression of neuronal factors, and motor functions. MSC administration improved motor function in rats after SCI due to stimulation of regeneration and sprouting of the axons, enhanced recovery of locomotor functions, reduction of PTS and the glial scar, and stimulation of vascularization and expression of the neurotrophic factors. The effects of MSC were dose-dependent; the most effective dose was 106 cells.
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Affiliation(s)
- C Zhang
- Department of Medicinal Nanobiotechnology, Pirogov Russian National Research Medical University, Ministry of Health of the Russian Federation, Moscow, Russia.
- Department of Basic and Applied Neurobiology, V. P. Serbsky National Medical Research Center for Psychiatry and Narcology, Ministry of Health of the Russian Federation, Moscow, Russia.
| | - A Yu Morozova
- Department of Basic and Applied Neurobiology, V. P. Serbsky National Medical Research Center for Psychiatry and Narcology, Ministry of Health of the Russian Federation, Moscow, Russia
| | - M A Abakumov
- Department of Medicinal Nanobiotechnology, Pirogov Russian National Research Medical University, Ministry of Health of the Russian Federation, Moscow, Russia
| | - P A Mel'nikov
- Department of Medicinal Nanobiotechnology, Pirogov Russian National Research Medical University, Ministry of Health of the Russian Federation, Moscow, Russia
| | - A N Gabashvili
- Department of Medicinal Nanobiotechnology, Pirogov Russian National Research Medical University, Ministry of Health of the Russian Federation, Moscow, Russia
| | - V P Chekhonin
- Department of Medicinal Nanobiotechnology, Pirogov Russian National Research Medical University, Ministry of Health of the Russian Federation, Moscow, Russia
- Department of Basic and Applied Neurobiology, V. P. Serbsky National Medical Research Center for Psychiatry and Narcology, Ministry of Health of the Russian Federation, Moscow, Russia
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3
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Karsuntseva EK, Fursa GA, Sosnovtseva AO, Voronova AD, Chadin AV, Semkina AS, Stepanova OV, Chekhonin VP. Application of a New Gene-Cell Construct Based on the Olfactory Mucosa Escheating Cells Transduced with an Adenoviral Vector Encoding Mature BDNF in the Therapy of Spinal Cord Cysts. Bull Exp Biol Med 2022; 172:617-621. [PMID: 35352253 DOI: 10.1007/s10517-022-05446-x] [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: 12/06/2021] [Indexed: 11/28/2022]
Abstract
A gene-cell construct based on rat olfactory mucosa ensheathing cells transduced with an adenoviral vector encoding a mature form of brain neurotrophic factor (mBDNF) was transplanted into post-traumatic cysts of rat spinal cord. Transplantation of the gene-cell construct improved motor activity of the hind limbs and reduced the size of cysts in some animals. However, comparison of the effects of transduced and non-transduced ensheathing cells revealed no significant differences. In parallel in vitro experiments, a decrease in the proliferation of transduced cells compared to non-transduced cells was observed. It is likely that mBDNF reduces proliferation of transduced cells, which can affect their efficiency. The therapeutic efficacy of the new gene-cell construct is most likely provided by the cellular component.
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Affiliation(s)
- E K Karsuntseva
- V. P. Serbsky National Medical Research Centre of Psychiatry and Narcology, Ministry of Health of the Russian Federation, Moscow, Russia
| | - G A Fursa
- M. V. Lomonosov Moscow State University, Moscow, Russia
| | - A O Sosnovtseva
- V. P. Serbsky National Medical Research Centre of Psychiatry and Narcology, Ministry of Health of the Russian Federation, Moscow, Russia
| | - A D Voronova
- V. P. Serbsky National Medical Research Centre of Psychiatry and Narcology, Ministry of Health of the Russian Federation, Moscow, Russia.
| | - A V Chadin
- V. P. Serbsky National Medical Research Centre of Psychiatry and Narcology, Ministry of Health of the Russian Federation, Moscow, Russia
| | - A S Semkina
- V. P. Serbsky National Medical Research Centre of Psychiatry and Narcology, Ministry of Health of the Russian Federation, Moscow, Russia.,Pirogov Russian National Research Medical University, Moscow, Russia
| | - O V Stepanova
- V. P. Serbsky National Medical Research Centre of Psychiatry and Narcology, Ministry of Health of the Russian Federation, Moscow, Russia.,National Medical Research Center of Cardiology, Ministry of the Health of the Russian Federation, Moscow, Russia
| | - V P Chekhonin
- V. P. Serbsky National Medical Research Centre of Psychiatry and Narcology, Ministry of Health of the Russian Federation, Moscow, Russia.,Pirogov Russian National Research Medical University, Moscow, Russia
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4
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Kaplan B, Levenberg S. The Role of Biomaterials in Peripheral Nerve and Spinal Cord Injury: A Review. Int J Mol Sci 2022; 23:ijms23031244. [PMID: 35163168 PMCID: PMC8835501 DOI: 10.3390/ijms23031244] [Citation(s) in RCA: 18] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/31/2021] [Revised: 01/19/2022] [Accepted: 01/20/2022] [Indexed: 12/18/2022] Open
Abstract
Peripheral nerve and spinal cord injuries are potentially devastating traumatic conditions with major consequences for patients’ lives. Severe cases of these conditions are currently incurable. In both the peripheral nerves and the spinal cord, disruption and degeneration of axons is the main cause of neurological deficits. Biomaterials offer experimental solutions to improve these conditions. They can be engineered as scaffolds that mimic the nerve tissue extracellular matrix and, upon implantation, encourage axonal regeneration. Furthermore, biomaterial scaffolds can be designed to deliver therapeutic agents to the lesion site. This article presents the principles and recent advances in the use of biomaterials for axonal regeneration and nervous system repair.
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Affiliation(s)
- Ben Kaplan
- Faculty of Biomedical Engineering, Technion-Israel Institute of Technology, Haifa 3200003, Israel;
- Bruce Rapaport Faculty of Medicine, Technion-Israel Institute of Technology, Haifa 3525433, Israel
| | - Shulamit Levenberg
- Faculty of Biomedical Engineering, Technion-Israel Institute of Technology, Haifa 3200003, Israel;
- Correspondence:
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5
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Voronova AD, Stepanova OV, Chadin AV, Fursa GA, Karsuntseva EK, Valikhov MP, Semkina АS, Reshetov IV, Chekhonin VP. The Effect of Transplantation of Olfactory Ensheathing Cells on the Size of Posttraumatic Spinal Cord Cysts. Bull Exp Biol Med 2021; 171:122-126. [PMID: 34046791 DOI: 10.1007/s10517-021-05183-7] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2020] [Indexed: 01/14/2023]
Abstract
We studied the effect of transplantation of ensheathing cells obtained from the olfactory mucosa of rats and humans on the size of posttraumatic spinal cord cysts. MRI examination showed that transplantation of these cells into experimental posttraumatic cysts of the spinal cord led to a significant decrease in cyst volume and even their complete disappearance in two animals receiving transplantation of rat or human cells. These findings attested to regenerative processes developing as a result of ensheathing cell transplantation. Further studies in this field will be aimed at elucidation of the mechanisms underlying spinal cord regeneration in the area of posttraumatic cysts after transplantation of ensheathing cells.
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Affiliation(s)
- A D Voronova
- V. P. Serbsky National Medical Research Center of Psychiatry and Narcology, Ministry of Health of the Russian Federation, Moscow, Russia.
| | - O V Stepanova
- V. P. Serbsky National Medical Research Center of Psychiatry and Narcology, Ministry of Health of the Russian Federation, Moscow, Russia.,National Medical Research Center of Cardiology, Ministry of Health of the Russian Federation, Moscow, Russia
| | - A V Chadin
- V. P. Serbsky National Medical Research Center of Psychiatry and Narcology, Ministry of Health of the Russian Federation, Moscow, Russia
| | - G A Fursa
- V. P. Serbsky National Medical Research Center of Psychiatry and Narcology, Ministry of Health of the Russian Federation, Moscow, Russia.,M. V. Lomonosov Moscow State University, Moscow, Russia
| | - E K Karsuntseva
- V. P. Serbsky National Medical Research Center of Psychiatry and Narcology, Ministry of Health of the Russian Federation, Moscow, Russia.,M. V. Lomonosov Moscow State University, Moscow, Russia
| | - M P Valikhov
- V. P. Serbsky National Medical Research Center of Psychiatry and Narcology, Ministry of Health of the Russian Federation, Moscow, Russia.,National Medical Research Center of Cardiology, Ministry of Health of the Russian Federation, Moscow, Russia
| | - А S Semkina
- V. P. Serbsky National Medical Research Center of Psychiatry and Narcology, Ministry of Health of the Russian Federation, Moscow, Russia.,N. I. Pirogov Russian National Research Medical University, Ministry of Health of the Russian Federation, Moscow, Russia
| | - I V Reshetov
- University Clinical Hospital No. 1, I. M. Sechenov First Moscow State Medical University, Ministry of Health of the Russian Federation (Sechenov University), Moscow, Russia
| | - V P Chekhonin
- V. P. Serbsky National Medical Research Center of Psychiatry and Narcology, Ministry of Health of the Russian Federation, Moscow, Russia.,N. I. Pirogov Russian National Research Medical University, Ministry of Health of the Russian Federation, Moscow, Russia
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6
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Kwiecien JM, Dąbrowski W, Yaron JR, Zhang L, Delaney KH, Lucas AR. The Role of Astrogliosis in Formation of the Syrinx in Spinal Cord Injury. Curr Neuropharmacol 2021; 19:294-303. [PMID: 32691715 PMCID: PMC8033977 DOI: 10.2174/1570159x18666200720225222] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2020] [Revised: 06/09/2020] [Accepted: 07/16/2020] [Indexed: 12/28/2022] Open
Abstract
A massive localized trauma to the spinal cord results in complex pathologic events driven by necrosis and vascular damage which in turn leads to hemorrhage and edema. Severe, destructive and very protracted inflammatory response is characterized by infiltration by phagocytic macrophages of a site of injury which is converted into a cavity of injury (COI) surrounded by astroglial reaction mounted by the spinal cord. The tissue response to the spinal cord injury (SCI) has been poorly understood but the final outcome appears to be a mature syrinx filled with the cerebrospinal fluid with related neural tissue loss and permanent neurologic deficits. This paper reviews known pathologic mechanisms involved in the formation of the COI after SCI and discusses the integrative role of reactive astrogliosis in mechanisms involved in the removal of edema after the injury. A large proportion of edema fluid originating from the trauma and then from vasogenic edema related to persistent severe inflammation, may be moved into the COI in an active process involving astrogliosis and specifically over-expressed aquaporins.
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Affiliation(s)
- Jacek M. Kwiecien
- Department of Pathology and Molecular Medicine, Faculty of Health Sciences, McMaster University, Hamilton, ON, Canada
| | - Wojciech Dąbrowski
- Department of Anaesthesiology and Intensive Therapy, Medical University of Lublin, ul. Jaczewskiego 8, Lublin 20-090 Poland
| | - Jordan R Yaron
- Center for Personalized Diagnostics and Center for Immunotherapy, Vaccines and Virotherapy, Biodesign Institute, Arizona State University, Tempe, AZ, U.S.A
| | - Liqiang Zhang
- Center for Personalized Diagnostics and Center for Immunotherapy, Vaccines and Virotherapy, Biodesign Institute, Arizona State University, Tempe, AZ, U.S.A
| | - Kathleen H. Delaney
- Department of Pathology and Molecular Medicine, Faculty of Health Sciences, McMaster University, Hamilton, ON, Canada
| | - Alexandra R. Lucas
- Center for Personalized Diagnostics and Center for Immunotherapy, Vaccines and Virotherapy, Biodesign Institute, Arizona State University, Tempe, AZ, U.S.A
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7
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Abstract
Spinal cord injury results in significant loss of motor, sensory, and autonomic functions. Although a wide range of therapeutic agents have been shown to attenuate secondary injury or promote regeneration/repair in animal models of spinal cord injury, clinical translation of these strategies has been limited, in part due to difficulty in safely and effectively achieving therapeutic concentrations in the injured spinal cord tissue. Hydrogel-based drug delivery systems offer unique opportunities to locally deliver drugs to the injured spinal cord with sufficient dose and duration, while avoiding deleterious side effects associated with systemic drug administration. Such local drug delivery systems can be readily fabricated from biocompatible and biodegradable materials. In this review, hydrogel-based strategies for local drug delivery to the injured spinal cord are extensively reviewed, and recommendations are made for implementation.
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Affiliation(s)
- Robert B Shultz
- School of Biomedical Engineering, Science and Health Systems, Drexel University; Department of Neurosurgery; Department of Bioengineering, University of Pennsylvania; New Jersey Center for Biomaterials, Rutgers - The State University of New Jersey, Piscataway, NJ; Center for Neurotrauma, Neurodegeneration & Restoration, Corporal Michael J. Crescenz Veterans Affairs Medical Center, Philadelphia, PA, USA
| | - Yinghui Zhong
- School of Biomedical Engineering, Science and Health Systems, Drexel University, Philadelphia, PA, USA
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8
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Kwiecien JM. The Pathogenesis of Neurotrauma Indicates Targets for Neuroprotective Therapies. Curr Neuropharmacol 2021; 19:1191-1201. [PMID: 33550977 PMCID: PMC8719295 DOI: 10.2174/1570159x19666210125153308] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2020] [Revised: 11/06/2020] [Accepted: 01/24/2021] [Indexed: 11/22/2022] Open
Abstract
The spinal cord injury (SCI) initiates an extraordinarily protracted disease with 3 phases; acute, inflammatory, and resolution that are restricted to the cavity of injury (COI) or arachnoiditis by a unique CNS reaction against the severity of destructive inflammation. While the severity of inflammation involving the white matter is fueled by a potently immunogenic activity of damaged myelin, its sequestration in the COI and its continuity with the cerebrospinal fluid of the subdural space allow anti-inflammatory therapeutics infused subdurally to inhibit phagocytic macrophage infiltration and thus provide neuroprotection. The role of astrogliosis in containing and ultimately in eliminating severe destructive inflammation post-trauma appears obvious but is not yet sufficiently understood to use in therapeutic neuroprotective and neuroregenerative strategies. An apparent antiinflammatory activity of reactive astrocytes is paralleled by their active role in removing excess edema fluid in blood-brain barrier damaged by inflammation. Recently elucidated pathogenesis of neurotrauma, including SCI, traumatic brain injury (TBI), and stroke, calls for the following principal therapeutic steps in its treatment leading to the recovery of neurologic function: (1) inhibition and elimination of destructive inflammation from the COI with accompanying reduction of vasogenic edema, (2) insertion into the COI of a functional bridge supporting the crossing of regenerating axons, (3) enabling regeneration of axons to their original synaptic targets by temporary safe removal of myelin in targeted areas of white matter, (4) in vivo, systematic monitoring of the consecutive therapeutic steps. The focus of this paper is on therapeutic step 1.
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Affiliation(s)
- Jacek M. Kwiecien
- Department of Pathology and Molecular Medicine, Faculty of Health Sciences, McMaster University, Room HSC 1U22D, 1280 Main Street West, Hamilton, ON, L4S 4K1, Canada
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9
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Voronova AD, Stepanova OV, Valikhov MP, Chadin AV, Semkina AS, Karsuntseva EK, Fursa GA, Reshetov IV, Chekhonin VP. Combined Preparation of Human Olfactory Ensheathing Cells in the Therapy of Post-Traumatic Cysts of the Spinal Cord. Bull Exp Biol Med 2020; 169:539-543. [PMID: 32910386 DOI: 10.1007/s10517-020-04925-3] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2019] [Indexed: 01/11/2023]
Abstract
In experiments on rats, co-transplantation of olfactory ensheathing cells of the human olfactory mucosa and neural stem/progenitor cells from the same source into post-traumatic cysts of the spinal cord led to improvement of the motor activity of the hind limbs and reduced the size of the cysts in some animals by 4-12%. The transplantation of a combination of the olfactory mucosa cells is effective and can be used in preclinical trials for the treatment of spinal cord injuries.
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Affiliation(s)
- A D Voronova
- Department of Fundamental and Applied Neurobiology, V. P. Serbsky Federal Medical Research Centre of Psychiatry and Narcology, Ministry of Health of the Russian Federation, Moscow, Russia.
| | - O V Stepanova
- Department of Fundamental and Applied Neurobiology, V. P. Serbsky Federal Medical Research Centre of Psychiatry and Narcology, Ministry of Health of the Russian Federation, Moscow, Russia.,Depatrment of Neurohumoral and Immunological Studies, National Medical Research Center of Cardiology, Ministry of Health of the Russian Federation, Moscow, Russia
| | - M P Valikhov
- Department of Fundamental and Applied Neurobiology, V. P. Serbsky Federal Medical Research Centre of Psychiatry and Narcology, Ministry of Health of the Russian Federation, Moscow, Russia.,Depatrment of Neurohumoral and Immunological Studies, National Medical Research Center of Cardiology, Ministry of Health of the Russian Federation, Moscow, Russia
| | - A V Chadin
- Department of Fundamental and Applied Neurobiology, V. P. Serbsky Federal Medical Research Centre of Psychiatry and Narcology, Ministry of Health of the Russian Federation, Moscow, Russia
| | - A S Semkina
- Department of Fundamental and Applied Neurobiology, V. P. Serbsky Federal Medical Research Centre of Psychiatry and Narcology, Ministry of Health of the Russian Federation, Moscow, Russia
| | - E K Karsuntseva
- Department of Fundamental and Applied Neurobiology, V. P. Serbsky Federal Medical Research Centre of Psychiatry and Narcology, Ministry of Health of the Russian Federation, Moscow, Russia.,M. V. Lomonosov Moscow State University, Moscow, Russia
| | - G A Fursa
- Department of Fundamental and Applied Neurobiology, V. P. Serbsky Federal Medical Research Centre of Psychiatry and Narcology, Ministry of Health of the Russian Federation, Moscow, Russia.,M. V. Lomonosov Moscow State University, Moscow, Russia
| | - I V Reshetov
- University Clinical Hospital No. 1, I. M. Se-chenov First Moscow State Medical University, Ministry of Health of the Russian Federation (Sechenov University), Moscow, Russia
| | - V P Chekhonin
- Department of Fundamental and Applied Neurobiology, V. P. Serbsky Federal Medical Research Centre of Psychiatry and Narcology, Ministry of Health of the Russian Federation, Moscow, Russia
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10
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Neural Stem/Progenitor Cells of Human Olfactory Mucosa for the Treatment of Chronic Spinal Cord Injuries. Bull Exp Biol Med 2020; 168:538-541. [PMID: 32157509 DOI: 10.1007/s10517-020-04749-1] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2019] [Indexed: 12/18/2022]
Abstract
We studied the efficiency of transplantation of neural stem/progenitor cells from human olfactory mucosa in chronic spinal cord injury. Neural stem/progenitor cells were obtained by a protocol modified by us and transplanted to rats with spinal post-traumatic cysts. It was shown that transplantation of neural stem/progenitor cells from human olfactory lining improved motor activity of hind limbs in the recipient rat with spinal post-traumatic cysts (according to BBB scale).
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11
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Voronova АD, Stepanova OV, Valikhov MP, Chadin AV, Semkina АS, Abakumov MA, Reshetov IV, Chekhonin VP. Comparison of the Efficiency of Transplantation of Rat and Human Olfactory Ensheathing Cells in Posttraumatic Cysts of the Spinal Cord. Bull Exp Biol Med 2019; 167:536-540. [PMID: 31502130 DOI: 10.1007/s10517-019-04568-z] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2018] [Indexed: 11/24/2022]
Abstract
Olfactory ensheathing cells showed significant effects on the regeneration of the spinal cord in experimental models and in clinical trials. However, the use of these cells in the therapy of posttraumatic cysts of the spinal cord has not been studied. Cultures of human and rat olfactory mucosa were obtained according to the protocols developed by us. Passage 3-4 cultures are most enriched with olfactory ensheathing cells and are preferable for transplantation. We performed transplantation of 750,000 olfactory ensheathing cells into the region of modeled cysts. The therapeutic effect of human cells was more pronounced. The positive dynamics of recovery of motor activity in the hind limbs of rats can reflect regenerative processes in the spinal cord after transplantation of olfactory ensheathing cells into the region of posttraumatic cysts.
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Affiliation(s)
- А D Voronova
- Department of Fundamental and Applied Neurobiology, V. P. Serbsky National Medical Research Center for Psychiatry and Narcology, Ministry of Health of the Russian Federation, Moscow, Russia. .,Department of Medical Nanobiotechnologies, Medical and Biological Faculty, N. I. Pirogov National Research Medical University, Ministry of Health of the Russian Federation, Moscow, Russia.
| | - O V Stepanova
- Department of Fundamental and Applied Neurobiology, V. P. Serbsky National Medical Research Center for Psychiatry and Narcology, Ministry of Health of the Russian Federation, Moscow, Russia
| | - M P Valikhov
- Department of Fundamental and Applied Neurobiology, V. P. Serbsky National Medical Research Center for Psychiatry and Narcology, Ministry of Health of the Russian Federation, Moscow, Russia
| | - A V Chadin
- Department of Fundamental and Applied Neurobiology, V. P. Serbsky National Medical Research Center for Psychiatry and Narcology, Ministry of Health of the Russian Federation, Moscow, Russia
| | - А S Semkina
- Department of Medical Nanobiotechnologies, Medical and Biological Faculty, N. I. Pirogov National Research Medical University, Ministry of Health of the Russian Federation, Moscow, Russia
| | - M A Abakumov
- Department of Medical Nanobiotechnologies, Medical and Biological Faculty, N. I. Pirogov National Research Medical University, Ministry of Health of the Russian Federation, Moscow, Russia
| | - I V Reshetov
- University Hospital No. 1, I. M. Sechenov First Moscow State Medical University, Ministry of Health of the Russian Federation, Moscow, Russia
| | - V P Chekhonin
- Department of Fundamental and Applied Neurobiology, V. P. Serbsky National Medical Research Center for Psychiatry and Narcology, Ministry of Health of the Russian Federation, Moscow, Russia.,Department of Medical Nanobiotechnologies, Medical and Biological Faculty, N. I. Pirogov National Research Medical University, Ministry of Health of the Russian Federation, Moscow, Russia
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12
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Stepanova OV, Voronova AD, Chadin AV, Valikhov MP, Semkina AS, Karsuntseva EK, Chekhonin IV, Shishkina VS, Reshetov IV, Chekhonin VP. Efficiency of Human Olfactory Ensheathing Cell Transplantation into Spinal Cysts to Improve Mobility of the Hind Limbs. Stem Cells Dev 2019; 28:1253-1263. [PMID: 31310179 DOI: 10.1089/scd.2019.0092] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022] Open
Abstract
The pathological processes developing after spinal cord injuries often lead to formation of cysts. Existing surgical and medical methods are insufficient for treatment of post-traumatic spinal cord cysts. One of the emerging tools is cell therapy. Olfactory ensheathing cells (OECs) are perspective cells for cell therapy. In this study, we demonstrated that human OEC transplantation is effective in experimental spinal cysts. For our experiments, we selected animals only at the intermediate stage of recovery with scores from 8 to 13 according to the Basso, Beattie, and Bresnahan (BBB) scale. Cells were transplanted in different quantities (0.75 and 1.5 million) into the fully formed cysts and in the areas of injury without cysts. Improvement of limb mobility after human OEC transplantation into post-traumatic cysts was shown. In the group of rats with cysts, time-dependent increase in the BBB score was observed in subgroups treated with 0.75 and 1.5 million OECs with no statistically significant time-dependent dynamics of BBB values in the control group. When all three subgroups (control and two OEC doses) were compared, the Kruskal-Wallis test showed the presence of differences between subgroups after 1, 3, and 4 weeks of treatment with evidence of divergence increase. There was no statistically significant difference between the two doses of OEC treatment. The human OECs in the experiments without cysts were not effective. It was also shown that PKH26-labeled human OECs survive throughout the experiment and migrate to nearby areas of the cyst. Therefore, it was found that it is effective to transplant human OECs into fully formed cysts. In the future, autologous OECs can be used to personalize the treatment of patients with spinal cysts.
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Affiliation(s)
- Olga V Stepanova
- Department of Basic and Applied Neurobiology, V.P. Serbsky National Medical Research Center for Psychiatry and Narcology, Moscow, Russia.,Department of Neurohumoral and Immunological Research, National Medical Research Center of Cardiology, Moscow, Russia
| | - Anastasia D Voronova
- Department of Basic and Applied Neurobiology, V.P. Serbsky National Medical Research Center for Psychiatry and Narcology, Moscow, Russia.,Department of Medical Nanobiotechnologies, N.I. Pirogov Russian National Research Medical University, Moscow, Russia
| | - Andrey V Chadin
- Department of Basic and Applied Neurobiology, V.P. Serbsky National Medical Research Center for Psychiatry and Narcology, Moscow, Russia
| | - Marat P Valikhov
- Department of Basic and Applied Neurobiology, V.P. Serbsky National Medical Research Center for Psychiatry and Narcology, Moscow, Russia.,Department of Neurohumoral and Immunological Research, National Medical Research Center of Cardiology, Moscow, Russia
| | - Alevtina S Semkina
- Department of Basic and Applied Neurobiology, V.P. Serbsky National Medical Research Center for Psychiatry and Narcology, Moscow, Russia.,Department of Medical Nanobiotechnologies, N.I. Pirogov Russian National Research Medical University, Moscow, Russia
| | | | - Ivan V Chekhonin
- Department of Basic and Applied Neurobiology, V.P. Serbsky National Medical Research Center for Psychiatry and Narcology, Moscow, Russia
| | | | - Igor V Reshetov
- Department of Plastic Surgery, I.M. Sechenov First Moscow State Medical University, Moscow, Russia
| | - Vladimir P Chekhonin
- Department of Basic and Applied Neurobiology, V.P. Serbsky National Medical Research Center for Psychiatry and Narcology, Moscow, Russia.,Department of Medical Nanobiotechnologies, N.I. Pirogov Russian National Research Medical University, Moscow, Russia
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13
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Abstract
As the systematic work on the pathogenesis of the white matter injury in the spinal cord models progresses, it becomes obvious that a severe and extraordinarily protracted, destructive inflammation follows the initial injury. Appropriate anti-inflammatory therapies of sufficient duration should not only inhibit but also lead to the elimination of this destructive inflammation, thus resulting in neuroprotection of the spinal cord tissue and a greater preservation of the neurologic function. While dexamethasone, a powerful, anti-inflammatory steroid analog administered continuously by subdural infusion for 7 days inhibited severe macrophage infiltration in the cavity of injury, the dose used was remarkably toxic. A 2-week-long infusion of lower doses of dexamethasone resulted in dose-dependent inhibition of macrophage infiltration and was better tolerated by the rats, but it became evident that a much longer duration of subdural administration of a powerful anti-inflammatory drug is required to eliminate myelin-rich, necrotic debris from the cavity and synthetic steroids such as dexamethasone, and methylprednisolone may be too toxic for this application. Therefore, nontoxic but powerful anti-inflammatory compounds are required for neuroprotective treatment of the spinal cord injury (SCI) and also brain trauma and stroke where the massive injury to the white matter occurs. Serpins have been associated with neurological damage. The mammalian serpin neuroserpin (SERPINI1) is reported to act in a protective manner after cerebrospinal infarction. The serine protease, tissue-type plasminogen activator (tPA), and the serpin plasminogen activator inhibitor (PAI-1, SERPINE1) are both upregulated at sites of central nervous system damage. In preliminary studies, subdural infusion of the myxomaviral serpin, Serp-1, resulted in the powerful inhibition of the macrophage infiltration of the cavity of injury, comparable to the inhibition by high dose of dexamethasone that has proven to be unduly toxic. Nontoxic, yet powerful neuroprotective, anti-inflammatory effects of Serp-1 may indicate this serpin protein as a potential attractive compound to treat SCI and similar syndromes involving massive injury to the white matter such as brain trauma and stroke. Novel methods of drug delivery, chronic subdural infusion, and novel analytic methods to measure the effectiveness of the neuroprotective serpin treatments are discussed in this chapter.
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Affiliation(s)
- Jacek M Kwiecien
- Department of Pathology and Molecular Medicine, McMaster University, Hamilton, ON, Canada.
- Department of Clinical Pathomorphology, Medical University of Lublin, Lublin, Poland.
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14
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Survival and Migration of Rat Olfactory Ensheathing Cells after Transplantation into Posttraumatic Cysts in the Spinal Cord. Bull Exp Biol Med 2018; 166:118-123. [PMID: 30417294 DOI: 10.1007/s10517-018-4299-z] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2018] [Indexed: 12/15/2022]
Abstract
We studied survival of rat ensheathing cells after transplantation into experimental posttraumatic cysts. These cells were prepared according to our original protocol, labeled with intravital membrane dye PKH26, and transplanted into posttraumatic cysts of the spinal cord. The presence of cysts was verified by magnetic resonance imaging. Olfactory ensheathing cells were detected in the spinal cord by the immunofluorescence method. It was shown that rat olfactory ensheathing cells survived in the spinal cord over 4 weeks and their migration was observed. High survival rate and the possibility of obtaining olfactory ensheathing cells from the olfactory mucosa of patients for creation of an autologous preparation allow considering them as very promising material for the treatment of patients with posttraumatic cysts of the spinal cord.
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15
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Minakov AN, Chernov AS, Asutin DS, Konovalov NA, Telegin GB. Experimental Models of Spinal Cord Injury in Laboratory Rats. Acta Naturae 2018; 10:4-10. [PMID: 30397521 PMCID: PMC6209407] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2017] [Indexed: 11/15/2022] Open
Abstract
Pathologies associated with spinal cord injury are some of the leading diseases in the world. The search for new therapeutic agents and 3D biodegradable materials for the recovery of spinal cord functions is a topical issue. In this review, we have summarized the literature data on the most common experimental models of spinal cord injury in laboratory rats and analyzed the experience of using 3D biodegradable materials (scaffolds) in experimental studies of spinal trauma. The advantages and disadvantages of the described models are systematically analyzed in this review.
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Affiliation(s)
- A. N. Minakov
- Branch of Shemyakin and Ovchinnikov institute of bioorganic chemistry Russian academy of sciences, Prospekt Nauki, 6, Moscow region, Pushchino, 142290, Russia
| | - A. S. Chernov
- Branch of Shemyakin and Ovchinnikov institute of bioorganic chemistry Russian academy of sciences, Prospekt Nauki, 6, Moscow region, Pushchino, 142290, Russia
| | - D. S. Asutin
- Federal State Autonomous Institution «N .N. Burdenko National Scientific and Practical Center for Neurosurgery» of the Ministry of Healthcare of the Russian Federation, 4th Tverskaya-Yamskaya Str., 16, Moscow, 125047, Russia
| | - N. A. Konovalov
- Federal State Autonomous Institution «N .N. Burdenko National Scientific and Practical Center for Neurosurgery» of the Ministry of Healthcare of the Russian Federation, 4th Tverskaya-Yamskaya Str., 16, Moscow, 125047, Russia
| | - G. B. Telegin
- Branch of Shemyakin and Ovchinnikov institute of bioorganic chemistry Russian academy of sciences, Prospekt Nauki, 6, Moscow region, Pushchino, 142290, Russia
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16
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Stepanova OV, Voronova АD, Chadin AV, Valikhov MP, Abakumov MA, Reshetov IV, Chekhonin VP. Isolation of Rat Olfactory Ensheathing Cells and Their Use in the Therapy of Posttraumatic Cysts of the Spinal Cord. Bull Exp Biol Med 2018; 165:132-135. [PMID: 29796806 DOI: 10.1007/s10517-018-4114-x] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2017] [Indexed: 01/12/2023]
Abstract
We evaluated the efficacy of rat olfactory ensheathing cells in the therapy of experimental cysts of the spinal cord. Improvement of the motor function of the hind limbs after transplantation of the olfactory ensheathing cells into the posttraumatic spinal cord cysts rats was found. We also determined the required number of cells for transplantation and demonstrated a neuroprotective effect of this dosage. For further clinical studies, autologous tissue-specific cell preparation of olfactory ensheathing cells has to be created. Cell therapy in combination surgical and pharmacological treatment will substantially improve the quality of life of patients with posttraumatic spinal cord cysts.
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Affiliation(s)
- O V Stepanova
- Department of Fundamental and Applied Neurobiology, V. P. Serbsky National Medical Research Centre for Psychiatry and Narcology, Ministry of Health of the Russian Federation, Moscow, Russia.
| | - А D Voronova
- Department of Fundamental and Applied Neurobiology, V. P. Serbsky National Medical Research Centre for Psychiatry and Narcology, Ministry of Health of the Russian Federation, Moscow, Russia.,Department of Medical Nanobiotechnologies, Medico-Biological Faculty, N. I. Pirogov National Research Medical University, Ministry of Health of the Russian Federation, Moscow, Russia
| | - A V Chadin
- Department of Fundamental and Applied Neurobiology, V. P. Serbsky National Medical Research Centre for Psychiatry and Narcology, Ministry of Health of the Russian Federation, Moscow, Russia
| | - M P Valikhov
- Department of Fundamental and Applied Neurobiology, V. P. Serbsky National Medical Research Centre for Psychiatry and Narcology, Ministry of Health of the Russian Federation, Moscow, Russia
| | - M A Abakumov
- Department of Medical Nanobiotechnologies, Medico-Biological Faculty, N. I. Pirogov National Research Medical University, Ministry of Health of the Russian Federation, Moscow, Russia
| | - I V Reshetov
- University Clinical Hospital No. 1, I. M. Sechenov First Moscow State Medical University, Ministry of Health of the Russian Federation, Moscow, Russia
| | - V P Chekhonin
- Department of Fundamental and Applied Neurobiology, V. P. Serbsky National Medical Research Centre for Psychiatry and Narcology, Ministry of Health of the Russian Federation, Moscow, Russia.,Department of Medical Nanobiotechnologies, Medico-Biological Faculty, N. I. Pirogov National Research Medical University, Ministry of Health of the Russian Federation, Moscow, Russia
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17
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Zhang C, Chen K, Han X, Fu J, Douglas P, Morozova AY, Abakumov MA, Gubsky IL, Li D, Guo J, Zhang X, Wang G, Chekhonin VP. Diffusion Tensor Imaging in Diagnosis of Post-Traumatic Syringomyelia in Spinal Cord Injury in Rats. Med Sci Monit 2018; 24:177-182. [PMID: 29311540 PMCID: PMC5771161 DOI: 10.12659/msm.907955] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/30/2023] Open
Abstract
Background Post-traumatic syringomyelia (PTS) is a common disease after spinal cord injury (SCI). The present study was performed to evaluate the advantages of diffusion tensor imaging (DTI) in estimating SCI and prognosing PTS in SCI rats. Material/Methods Forty rats were divided into 3 groups based on the extent of the individual SCI and PTS: a control group (n=10), a PTS group (n=8), and an SCI group (n=22). BBB tests were performed preoperatively and postoperatively at (1 d, 3 d, 5 d, 1 w, 2 w, 1 w, 2 w, 3 w, 4 w, 5 w, and 6 w). MRI T2 scanning was conducted postoperatively at (1 w, 2 w, 3 w, 4 w, 5 w, 6 w). DTI and diffusion tensor tractography were used for analyzing neuro-fiber changes after SCI. Results BBB scoring showed no differences between the PTS group and SCI group (P<0.05). PTS was found in 8 rats after SCI. MRI showed PTS formation in 3 rats at 2 w after SCI, and 5 rats showed PTS formation at postoperative 3w after SCI. Compared with the control group, ADC showed significant increase in both the PTS group (P<0.05) and the SCI group (P<0.05), FA showed significant decreases in the PTS (P<0.05) and SCI (P<0.05) groups. Compared with the SCI group, the PTS group showed an increase in ADC, but no statistical difference was found in ADC (P>0.05). The PTS group showed a significant increase in FA (P<0.05). Conclusions The combination of diffusion tensor imaging and diffusion tensor tractography has characteristics of high-sensitivity and quantitation for PTS prognosis. FA is predictive in the prognosis of PTS formation after SCI.
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Affiliation(s)
- Chao Zhang
- Department of Bone and Soft Tissue Tumors, Tianjin Medical University Cancer Institute and Hospital, National Clinical Research Center for Cancer, Key Laboratory of Cancer Prevention and Therapy, Tianjin, China (mainland).,Department of Medicinal Nanobiotechnology, Pirogov Russian National Research Medical University, Moscow, Russian Federation
| | - Kai Chen
- Department of Radiology, The Second Hospital of Tianjin Medical University, Tianjin, China (mainland).,Department of Tumor Intervention, Tianjin 4th Centre Hospital, Tianjin, China (mainland)
| | - Xiuxin Han
- Department of Bone and Soft Tissue Tumors, Tianjin Medical University Cancer Institute and Hospital, National Clinical Research Center for Cancer, Key Laboratory of Cancer Prevention and Therapy, Tianjin, China (mainland)
| | | | | | - Anna Y Morozova
- Department of Basic and Applied Neurobiology, Federal Medical Research Center for Psychiatry and Narcology, Moscow, Russian Federation
| | - Maxim A Abakumov
- Department of Medicinal Nanobiotechnology, Pirogov Russian National Research Medical University, Moscow, Russian Federation
| | - Ilya L Gubsky
- Department of Medicinal Nanobiotechnology, Pirogov Russian National Research Medical University, Moscow, Russian Federation
| | - Dejin Li
- Tianjin Key Laboratory for Prevention and Control of Occupational and Environmental Hazards, Logistics University of The People's Armed Police Force, Tianjin, China (mainland)
| | - Jin Guo
- Tianjin Key Laboratory for Prevention and Control of Occupational and Environmental Hazards, Logistics University of The People's Armed Police Force, Tianjin, China (mainland)
| | - Xuening Zhang
- Department of Tumor Intervention, Tianjin 4th Centre Hospital, Tianjin, China (mainland)
| | - Guowen Wang
- Department of Bone and Soft Tissue Tumors, Tianjin Medical University Cancer Institute and Hospital, National Clinical Research Center for Cancer, Key Laboratory of Cancer Prevention and Therapy, Tianjin, China (mainland)
| | - Vladimir P Chekhonin
- Department of Medicinal Nanobiotechnology, Pirogov Russian National Research Medical University, Moscow, Russian Federation.,Department of Basic and Applied Neurobiology, Federal Medical Research Center for Psychiatry and Narcology, Moscow, Russian Federation
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18
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Liao S, Ni S, Cao Y, Yin X, Wu T, Lu H, Hu J, Wu H, Lang Y. The 3D characteristics of post-traumatic syringomyelia in a rat model: a propagation-based synchrotron radiation microtomography study. JOURNAL OF SYNCHROTRON RADIATION 2017; 24:1218-1225. [PMID: 29091065 DOI: 10.1107/s1600577517011201] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/19/2017] [Accepted: 07/30/2017] [Indexed: 06/07/2023]
Abstract
Many published literature sources have described the histopathological characteristics of post-traumatic syringomyelia (PTS). However, three-dimensional (3D) visualization studies of PTS have been limited due to the lack of reliable 3D imaging techniques. In this study, the imaging efficiency of propagation-based synchrotron radiation microtomography (PB-SRµCT) was determined to detect the 3D morphology of the cavity and surrounding microvasculature network in a rat model of PTS. The rat model of PTS was established using the infinite horizon impactor to produce spinal cord injury (SCI), followed by a subarachnoid injection of kaolin to produce arachnoiditis. PB-SRµCT imaging and histological examination, as well as fluorescence staining, were conducted on the animals at the tenth week after SCI. The 3D morphology of the cystic cavity was vividly visualized using PB-SRµCT imaging. The quantitative parameters analyzed by PB-SRµCT, including the lesion and spared spinal cord tissue area, the minimum and maximum diameters in the cystic cavity, and cavity volume, were largely consistent with the results of the histological assessment. Moreover, the 3D morphology of the cavity and surrounding angioarchitecture could be simultaneously detected on the PB-SRµCT images. This study demonstrated that high-resolution PB-SRµCT could be used for the 3D visualization of trauma-induced spinal cord cavities and provides valuable quantitative data for cavity characterization. PB-SRµCT could be used as a reliable imaging technique and offers a novel platform for tracking cavity formation and morphological changes in an experimental animal model of PTS.
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Affiliation(s)
- Shenghui Liao
- School of Information Science and Engineering, Central South University, Changsha 410008, People's Republic of China
| | - Shuangfei Ni
- Department of Spine Surgery, Xiangya Hospital, Central South University, Changsha 410008, People's Republic of China
| | - Yong Cao
- Department of Spine Surgery, Xiangya Hospital, Central South University, Changsha 410008, People's Republic of China
| | - Xianzhen Yin
- Center for Drug Delivery System, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai 201203, People's Republic of China
| | - Tianding Wu
- Department of Spine Surgery, Xiangya Hospital, Central South University, Changsha 410008, People's Republic of China
| | - Hongbin Lu
- Key Laboratory of Organ Injury, Aging and Regenerative Medicine of Hunan Province, Changsha 410008, People's Republic of China
| | - Jianzhong Hu
- Department of Spine Surgery, Xiangya Hospital, Central South University, Changsha 410008, People's Republic of China
| | - Hao Wu
- Department of Spine Surgery, Xiangya Hospital, Central South University, Changsha 410008, People's Republic of China
| | - Ye Lang
- Department of Spine Surgery, Xiangya Hospital, Central South University, Changsha 410008, People's Republic of China
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19
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Ban DX, Liu Y, Cao TW, Gao SJ, Feng SQ. The preparation of rat's acellular spinal cord scaffold and co-culture with rat's spinal cord neuron in vitro. Spinal Cord 2016; 55:411-418. [PMID: 27779250 DOI: 10.1038/sc.2016.144] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2016] [Revised: 08/30/2016] [Accepted: 09/14/2016] [Indexed: 12/12/2022]
Abstract
STUDY DESIGN The rat's acellular spinal cord scaffold (ASCS) and spinal cord neurons were prepared in vitro to explore their biocompatibility. OBJECTIVES The preparation of ASCS and co-culture with neuron may lay a foundation for clinical treatment of spinal cord injury (SCI). SETTING Tianjin Medical University General Hospital, ChinaMethods:ASCS was prepared by chemical extraction method. Hematoxylin and eosin (H&E), myelin staining and scanning electron microscope were used to observe the surface structure of ASCS. Spinal cord neurons of rat were separated in vitro, and then co-cultured with prepared ASCS in virto. RESULTS The prepared ASCS showed mesh structure with small holes of different sizes. H&E staining showed that cell components were all removed. The ASCS possessed fine three-dimensional network porous structure. DNA components were not found in the ASCS by DNA agarose gel electrophoresis. The cultured cells express neuron-specific enolase (NSE) antigen with long axons. H&E staining showed that the neurons adhered to the pore structures of ASCS, and the cell growth was fine. The survival rate of co-cultured cells was (97.53±1.52%) by MTT detection. Immunohistochemical staining showed that neurons on the scaffold expressed NSE and NeuN antigen. Cells were arranged closely, and the channel structures of ASCS were fully filled with neurons. The cells accumulated in the channel and grew well in good state. CONCLUSION The structure of ASCS remained intact, and the neurons were closely arranged in the scaffolds. These results may lay a solid foundation for clinical treatment of SCI when considering glial scar replacement by biomaterials.
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Affiliation(s)
- D-X Ban
- Department of Orthopedics, Tianjin Medical University General Hospital, Tianjin, China
| | - Y Liu
- Department of Orthopedics, Tianjin Medical University General Hospital, Tianjin, China
| | - T-W Cao
- Department of Orthopedics, Tianjin Medical University General Hospital, Tianjin, China
| | - S-J Gao
- Department of Orthopedics, Tianjin Medical University General Hospital, Tianjin, China
| | - S-Q Feng
- Department of Orthopedics, Tianjin Medical University General Hospital, Tianjin, China
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20
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Zhang C, Feng S, Hu N, Douglas P, Chekhonin VP. Letter to the editor regarding "Local versus distal transplantation of human neural stem cells following chronic spinal cord injury" by Cheng et al. Spine J 2016; 16:792-3. [PMID: 27342709 DOI: 10.1016/j.spinee.2016.02.039] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/07/2016] [Accepted: 02/08/2016] [Indexed: 02/03/2023]
Affiliation(s)
- Chao Zhang
- Department of Orthopedics, Tianjin Medical University General Hospital, Anshan Rd 154th Heping Area, Tianjin 300070, China; Department of Medicinal Nanobiotechnology, Pirogov Russian National Research Medical University, Ostrovitianov str. 1, Moscow 117997, Russia; Department of Basic and Applied Neurobiology, Federal Medical Research Center for Psychiatry and Narcology, Kropotkinskiy Lane 23th, Moscow 119119, Russia
| | - Shiqing Feng
- Department of Orthopedics, Tianjin Medical University General Hospital, Anshan Rd 154th Heping Area, Tianjin 300070, China
| | - Nan Hu
- Department of Anesthesiology, Tianjin Medical University General Hospital, Anshan Rd 154th Heping Area, Tianjin 300070, China
| | - Patricia Douglas
- Department of Orthopedics, Tianjin Medical University General Hospital, Anshan Rd 154th Heping Area, Tianjin 300070, China
| | - Vladimir P Chekhonin
- Department of Medicinal Nanobiotechnology, Pirogov Russian National Research Medical University, Ostrovitianov str. 1, Moscow 117997, Russia; Department of Basic and Applied Neurobiology, Federal Medical Research Center for Psychiatry and Narcology, Kropotkinskiy Lane 23th, Moscow 119119, Russia
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