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Sudhadevi T, Vijayakumar HS, Hariharan EV, Sandhyamani S, Krishnan LK. Optimizing fibrin hydrogel toward effective neural progenitor cell delivery in spinal cord injury. Biomed Mater 2021; 17. [PMID: 34736245 DOI: 10.1088/1748-605x/ac3680] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2021] [Accepted: 11/04/2021] [Indexed: 11/12/2022]
Abstract
Transplantation of neural progenitor cell (NPC) possessing the potential to differentiate into neurons may guard against spinal cord injury (SCI)- associated neuronal trauma. We propose that autologous-like NPC may reduce post-transplant immune response. The study used the rat SCI model to prove this concept. For isolation and expansion of rat NPC for cell-based SCI therapy, thein vitroprotocol standardized with human NPC seemed suitable. The primary aim of this study is to select a cell/neural tissue-compatible biomaterial for improving NPC survivalin vivo. The composition of the fibrin hydrogel is adjusted to obtain degradable, porous, and robust fibrin strands for supporting neural cell attachment, migration, and tissue regeneration. This study employed NPC culture to evaluate the cytocompatibility and suitability of the hydrogel, composed by adding graded concentrations of thrombin to a fixed fibrinogen concentration. The microstructure evaluation by scanning electron microscope guided the selection of a suitable composition for delivering the embedded cells. On adding more thrombin, fibrinogen clotted quickly but reduced porosity, pore size, and fiber strand thickness. The high activity of thrombin also affected NPC morphology and thein vitrocell survival. The selected hydrogel carried viable NPC and retained them at the injury site post-transplantation. The fibrin hydrogel played a protective role throughout the transfer process by providing cell attachment sites and survival signals. The fibrin and NPC together regulated the immune response at the SCI site reducing ED1+ve/ED2+vemacrophages in the early period of 8-16 d after injury. Migration ofβ-III tubulin+veneural-like cells into the fibrin-injected control SCI is evident. The continuous use of a non-neurotoxic fibrin matrix could be a convenient strategy forin vitroNPC preparation, minimally invasive cell delivery, and better transplantation outcome.
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Affiliation(s)
- Tara Sudhadevi
- Retd. Senior Grade Scientist G, Division of Thrombosis Research, Department of Applied Biology, Biomedical Technology Wing, Thrombosis Research Unit, SCTIMST, Trivandrum 695 012, India
| | - Harikrishnan S Vijayakumar
- Laboratory for Animal Science, Biomedical Technology Wing, Sree Chitra Tirunal Institute for Medical Sciences & Technology, Trivandrum 695012 Kerala, India
| | - Easwer V Hariharan
- Department of Neurosurgery, Sree Chitra Tirunal Institute for Medical Sciences & Technology, Trivandrum 695012 Kerala, India
| | - Samavedam Sandhyamani
- Department of Pathology, Sree Chitra Tirunal Institute for Medical Sciences & Technology, Trivandrum 695012 Kerala, India
| | - Lissy K Krishnan
- Retd. Senior Grade Scientist G, Division of Thrombosis Research, Department of Applied Biology, Biomedical Technology Wing, Thrombosis Research Unit, SCTIMST, Trivandrum 695 012, India
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Darvishi M, Hamidabadi HG, Bojnordi MN, Saeednia S, Zahiri M, Niapour A, Alizadeh R. Differentiation of human dental pulp stem cells into functional motor neuron: In vitro and ex vivo study. Tissue Cell 2021; 72:101542. [PMID: 33964606 DOI: 10.1016/j.tice.2021.101542] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2020] [Revised: 04/12/2021] [Accepted: 04/12/2021] [Indexed: 12/21/2022]
Abstract
There are several therapeutic options for spinal cord injury (SCI), among these strategies stem cell therapy is a potential treatment. The stem cells based therapies have been investigating in acute phase of clinical trials for promoting spinal repair in humans through replacement of functional neuronal and glial cells. The aim of this study was to evaluate the differentiation of Human Dental Pulp Stem Cells (hDPSCs) into functional motor neuron like cells (MNLCs) and promote neuroregeneration by stimulating local neurogenesis in the adult spinal cord slice culture. The immunocytochemistry analysis demonstrated that hDPSCs were positive for mesenchymal stem cell markers (CD73, CD90 and CD105) and negative for the hematopoietic markers (CD34 and CD45). hDPSCs were induced to neurospheres (via implementing B27, EGF, and bFGF) and then neural stem cells (NSC). The NSC differentiated into MNLCs in two steps: first by Shh and RA and ; then with GDNF and BDNF administration. The NS and the NSC were assessed for Oct4, nestin, Nanog, Sox2 expression while the MNLCs were evaluated by ISLET1, Olig2, and HB9 genes. Our results showed that hDPSC can be differentiated into motor neuron phenotype with expression of the motor neuron genes. The functionality of MNLCs was demonstrated by FM1-43, intracellular calcium ion shift and co- culture with C2C12. We co-cultivated hDPSCs with adult rat spinal slices in vitro. Immunostaining and hoechst assay showed that hDPSCs were able to migrate, proliferate and integrate in both the anterolateral zone and the edges of the spinal slices.
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Affiliation(s)
- Marzieh Darvishi
- Department of Anatomy, Faculty of Medicine, Ilam University of Medical Sciences, Ilam, Iran; Shefa Neuroscience Research Center, Khatam Alanbia Hospital, Tehran, Iran
| | - Hatef Ghasemi Hamidabadi
- Department of Anatomy & Cell Biology, Faculty of Medicine, Mazandaran University of Medical Sciences, Sari, Iran; Immunogenetic Research Center, Department of Anatomy & Cell Biology, Faculty of Medicine, Mazandaran University of Medical Sciences, Sari, Iran.
| | - Maryam Nazm Bojnordi
- Department of Anatomy & Cell Biology, Faculty of Medicine, Mazandaran University of Medical Sciences, Sari, Iran; Immunogenetic Research Center, Department of Anatomy & Cell Biology, Faculty of Medicine, Mazandaran University of Medical Sciences, Sari, Iran
| | - Sara Saeednia
- Department of Basic Sciences, School of Medicine, Shahroud University of Medical Sciences, Shahroud, Iran
| | - Maria Zahiri
- The Persian Gulf Marine Biotechnology Research Center, The Persian Gulf Biomedical Sciences Research Institute, Bushehr University of Medical Sciences, Bushehr, Iran
| | - Ali Niapour
- Research Laboratory for Embryology and Stem Cells, Department of Anatomical Sciences, School of Medicine, Ardabil University of Medical Sciences, Ardabil, Iran
| | - Rafieh Alizadeh
- ENT and Head & Neck Research Center and Department, Hazrat Rasoul Akram Hospital, Iran University of Medical Sciences, Tehran, Iran
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Mili B, Das K, Kumar A, Saxena AC, Singh P, Ghosh S, Bag S. Preparation of NGF encapsulated chitosan nanoparticles and its evaluation on neuronal differentiation potentiality of canine mesenchymal stem cells. JOURNAL OF MATERIALS SCIENCE. MATERIALS IN MEDICINE 2017; 29:4. [PMID: 29204722 DOI: 10.1007/s10856-017-6008-2] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/05/2017] [Accepted: 11/23/2017] [Indexed: 06/07/2023]
Abstract
Sustained and controlled release of neurotrophic factors in target tissue through nanomaterial based delivery system could be a better strategy for nerve tissue regeneration. The present study aims to prepare the nerve growth factor (NGF) encapsulated chitosan nanoparticles (NGF-CNPs) and its evaluation on neuronal differentiation potentiality of canine bone marrow derived mesenchymal stem cells (cBM-MSCs). The NGF-CNPs were prepared by ionotropic gelation method with tripolyphosphate (TPP) as an ionic cross-linking agent. Observations on physiochemical properties displayed the size of nanoparticles as 80-90 nm with positive zeta potential as well as an ionic interaction between NGF and nanoparticle. NGF loading efficiency was found to be 61% while its sustained release was observed by an in vitro release kinetics study. These nanoparticles were found to be cytocompatible to cBM-MSCs when supplemented at a concentration upto 4 mg/ml in culture media. The NGF-CNP supplemented culture media was able to transdifferentiate the preinduced cBM-MSCs into neurons in a better way than unbound NGF supplementation. Further, it was also noticed that NGF-CNPs were able to transdifferentiate cBM-MSCs without any chemical based preinduction. In conclusion, our findings propose that NGF-CNPs are capable of releasing bioactive NGF with the ability to transdifferentiate mesenchymal stem cells into neurons, suggesting its potential future application in nerve tissue regeneration.
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Affiliation(s)
- Bhabesh Mili
- Division of Physiology and Climatology, ICAR-Indian Veterinary Research Institute, Izatnagar, UP, 243122, India
| | - Kinsuk Das
- Division of Physiology and Climatology, ICAR-Indian Veterinary Research Institute, Izatnagar, UP, 243122, India
| | - Ajay Kumar
- Biochemistry and Food Science Section, ICAR-Indian Veterinary Research Institute, Izatnagar, UP, 243122, India
| | - A C Saxena
- Division of Surgery, ICAR-Indian Veterinary Research Institute, Izatnagar, UP, 243122, India
| | - Praveen Singh
- Biophysics, Electron Microscopy and Instrumentation Section, ICAR-Indian Veterinary Research Institute, Izatnagar, UP, 243122, India
| | - Srikanta Ghosh
- Division of Parasitology, ICAR-Indian Veterinary Research Institute, Izatnagar, UP, 243122, India
| | - Sadhan Bag
- Division of Physiology and Climatology, ICAR-Indian Veterinary Research Institute, Izatnagar, UP, 243122, India.
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Effects of FTY720 (Fingolimod) on Proliferation, Differentiation, and Migration of Brain-Derived Neural Stem Cells. Stem Cells Int 2016; 2016:9671732. [PMID: 27829841 PMCID: PMC5088305 DOI: 10.1155/2016/9671732] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2016] [Revised: 08/31/2016] [Accepted: 09/20/2016] [Indexed: 12/27/2022] Open
Abstract
Insufficient proliferation, differentiation, and migration are the main pitfalls of neural stem cells (NSCs) in reparative therapeutics for the central nervous system (CNS) diseases. The potent lipid mediator sphingosine-1-phosphate (S1P) regulates cells' biological behavior broadly in the CNS. However, the effects of activating S1P on NSCs are not quite clear. In the current study, FTY720 (Fingolimod), an analog of S1P, was employed to induce the proliferation, differentiation, and migration of cultured brain-derived NSCs. The results indicated that proliferation and migration ability of NSCs were promoted by FTY720. Though we observed no obvious neuron prefers differentiation of NSCs, there were more protoplasmic astrocytes developed in the presence of certain concentration of FTY720. This work gives more comprehensive understanding of how FTY720 affects NSCs.
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Zhang C, Tu F, Zhang JY, Shen L. E-cadherin-transfected neural stem cells transplantation for spinal cord injury in rats. ACTA ACUST UNITED AC 2014; 34:554-558. [DOI: 10.1007/s11596-014-1314-0] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2014] [Revised: 07/08/2014] [Indexed: 01/14/2023]
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Albertine KH, Dezawa M. A new age of regenerative medicine: fusion of tissue engineering and stem cell research. Anat Rec (Hoboken) 2013; 297:1-3. [PMID: 24293066 DOI: 10.1002/ar.22811] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2013] [Accepted: 09/16/2013] [Indexed: 01/21/2023]
Affiliation(s)
- Kurt H Albertine
- Editor-in-Chief, The Anatomical Record, Division of Neonatology, Department of Pediatrics, University of Utah, Salt Lake City, Utah
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Chong A, Song HC, Byun BH, Hong SP, Min JJ, Bom HS, Ha JM, Lee JK. Changes in (18)f-fluorodeoxyglucose uptake in the spinal cord in a healthy population on serial positron emission tomography/computed tomography. Chonnam Med J 2013; 49:38-42. [PMID: 23678476 PMCID: PMC3651985 DOI: 10.4068/cmj.2013.49.1.38] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2013] [Revised: 01/15/2013] [Accepted: 01/22/2013] [Indexed: 11/11/2022] Open
Abstract
We aimed to determine the changes in 18F-fluorodeoxyglucose (FDG) uptake in the spinal cord on two serial positron emission tomography/computed tomography (PET/CT) scans in a healthy population. We retrospectively enrolled healthy people who underwent PET/CT twice for cancer screening. We excluded those who had degenerative vertebral disease, neurologic disease, or a history of a vertebral operation. The standardized uptake value (SUVmax) of the spinal cord of each mid-vertebral body was obtained by drawing a region of interest on an axial image of PET/CT. For analysis, the cord-to-background ratio (CTB) was used (CTB=SUVmax of each level/SUVmax of L5 level). Differences in pattern, sex, age, and intervals of the two serial PET/CT scans were analyzed. A total of 60 PET/CT images of 30 people were analyzed. The mean interval between the two PET/CT imaging studies was 2.80±0.94 years. On the follow-up PET/CT, significant change was shown only at the level of the C6 and T10 vertebrae (p<0.005). Mean CTB showed a decreasing pattern from cervical to lumbar vertebrae. There were two peaks at the lower cervical level (C4-6) and at the lower thoracic level (T12). Neither sex nor age significantly affected CTB. The FDG uptake of the spinal cord changed significantly on follow-up PET/CT only at the level of the C6 and T10 vertebrae. This finding is valuable as a baseline reference in the follow-up of metabolic changes in the spinal cord.
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Affiliation(s)
- Ari Chong
- Department of Nuclear Medicine, Chosun University Hospital, School of Medicine, Chosun University, Gwangju, Korea
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Yang JR, Liao CH, Pang CY, Huang LLH, Chen YL, Shiue YL, Chen LR. Transplantation of porcine embryonic stem cells and their derived neuronal progenitors in a spinal cord injury rat model. Cytotherapy 2012; 15:201-8. [PMID: 23245953 DOI: 10.1016/j.jcyt.2012.09.001] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/03/2012] [Revised: 09/04/2012] [Accepted: 09/17/2012] [Indexed: 02/07/2023]
Abstract
BACKGROUND AIMS The purpose of this study was to investigate therapeutic potential of green fluorescent protein expressing porcine embryonic stem (pES/GFP(+)) cells in A rat model of spinal cord injury (SCI). METHODS Undifferentiated pES/GFP(+) cells and their neuronal differentiation derivatives were transplanted into the contused spinal cord of the Long Evans rat, and in situ development of the cells was determined by using a live animal fluorescence optical imaging system every 15 days. After pES/GFP(+) cell transplantation, the behavior functional recovery of the SCI rats was assessed with the Basso, Beattie, and Bresnahan Locomotor Rating Scale (BBB scale), and the growth and differentiation of the grafted pES/GFP(+) cells in the SCI rats were analyzed by immunohistochemical staining. RESULTS The relative green fluorescent protein expression level was decreased for 3 months after transplantation. The pES/GFP(+)-derived cells positively stained with neural specific antibodies of anti-NFL, anti-MBP, anti-SYP and anti-Tuj 1 were detected at the transplanted position. The SCI rats grafted with the D18 neuronal progenitors showed a significant functional recovery of hindlimbs and exhibited the highest BBB scale score of 15.20 ± 1.43 at week 24. The SCI rats treated with pES/GFP(+)-derived neural progenitors demonstrated a better functional recovery. CONCLUSIONS Transplantation of porcine embryonic stem (pES)-derived D18 neuronal progenitors has treatment potential for SCI, and functional behavior improvement of grafted pES-derived cells in SCI model rats suggests the potential for further application of pES cells in the study of replacement medicine and functionally degenerative pathologies.
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Affiliation(s)
- Jenn-Rong Yang
- Division of Physiology, Livestock Research Institute, Council of Agriculture, Executive Yuan, Tainan, Taiwan
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Gensel JC, Donnelly DJ, Popovich PG. Spinal cord injury therapies in humans: an overview of current clinical trials and their potential effects on intrinsic CNS macrophages. Expert Opin Ther Targets 2011; 15:505-18. [PMID: 21281256 DOI: 10.1517/14728222.2011.553605] [Citation(s) in RCA: 68] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
INTRODUCTION Macrophage activation is a hallmark of spinal cord injury (SCI) pathology. CNS macrophages, derived from resident microglia and blood monocytes, are ubiquitous throughout the injured spinal cord, and respond to signals in the lesion environment by changing their phenotype and function. Depending on their phenotype and activation status, macrophages may initiate secondary injury mechanisms and/or promote CNS regeneration and repair. AREAS COVERED This review provides a comprehensive overview of current SCI clinical trials that are intended to promote neuroprotection, axon regeneration or cell replacement. None of these potential therapies were developed with the goal of influencing macrophage function; however, it is likely that each will have direct or indirect effects on CNS macrophages. The potential impact of each trial is discussed in the context of CNS macrophage biology. EXPERT OPINION Activation of CNS macrophages is an inevitable consequence of traumatic SCI. Given that these cells are exquisitely sensitive to changes in microenvironment, any intervention that affects tissue integrity and/or the composition of the cellular milieu will undoubtedly affect CNS macrophages. Thus, it is important to understand how current clinical trials will affect intrinsic CNS macrophages.
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Affiliation(s)
- John C Gensel
- The Ohio State University College of Medicine, Center for Brain and Spinal Cord Repair, 795 Biomedical Research Tower, 460 West 12th Avenue, Columbus, OH 43210-1239, USA
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Barreiro-Iglesias A. Targeting ependymal stem cells in vivo as a non-invasive therapy for spinal cord injury. Dis Model Mech 2010; 3:667-8. [DOI: 10.1242/dmm.006643] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023] Open
Affiliation(s)
- Antón Barreiro-Iglesias
- Department of Cell Biology, CIBUS, Faculty of Biology, University of Santiago de Compostela, 15782 Santiago de Compostela, Spain
- Shriners Hospitals Pediatric Research Center, Temple University School of Medicine, 3500 North Broad Street, Philadelphia, PA 19140, USA e-mail:
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