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Zhou Y, He LN, Wang LN, Chen KY, Qian SD, Li XH, Zang J, Wang DM, Yu XF, Gao J. Human amniotic mesenchymal stromal cell-derived exosomes promote neuronal function by inhibiting excessive apoptosis in a hypoxia/ischemia-induced cerebral palsy model: A preclinical study. Biomed Pharmacother 2024; 173:116321. [PMID: 38394849 DOI: 10.1016/j.biopha.2024.116321] [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: 12/13/2023] [Revised: 02/14/2024] [Accepted: 02/19/2024] [Indexed: 02/25/2024] Open
Abstract
BACKGROUND Cerebral palsy (CP) is a condition resulting from perinatal brain injury and can lead to physical disabilities. Exosomes derived from human amniotic mesenchymal stromal cells (hAMSC-Exos) hold promise as potential therapeutic options. OBJECTIVE This study aimed to investigate the impact of hAMSC-Exos on neuronal cells and their role in regulating apoptosis both in vitro and in vivo. METHODS hAMSC-Exos were isolated via ultracentrifugation and characterized via transmission electron microscopy, particle size analysis, and flow cytometry. In vitro, neuronal damage was induced by lipopolysaccharide (LPS). CP rat models were established via left common carotid artery ligation. Apoptosis levels in cells and CP rats were assessed using flow cytometry, quantitative reverse transcription polymerase chain reaction (RT-qPCR), Western blotting, and TUNEL analysis. RESULTS The results demonstrated successful isolation of hAMSC-Exos via ultracentrifugation, as the isolated cells were positive for CD9 (79.7%) and CD63 (80.2%). Treatment with hAMSC-Exos significantly mitigated the reduction in cell viability induced by LPS. Flow cytometry revealed that LPS-induced damage promoted apoptosis, but this effect was attenuated by treatment with hAMSC-Exos. Additionally, the expression of caspase-3 and caspase-9 and the Bcl-2/Bax ratio indicated that excessive apoptosis could be attenuated by treatment with hAMSC-Exos. Furthermore, tail vein injection of hAMSC-Exos improved the neurobehavioral function of CP rats. Histological analysis via HE and TUNEL staining showed that apoptosis-related damage was attenuated following hAMSC-Exo treatment. CONCLUSIONS In conclusion, hAMSC-Exos effectively promote neuronal cell survival by regulating apoptosis, indicating their potential as a promising therapeutic option for CP that merits further investigation.
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Affiliation(s)
- Yu Zhou
- Department of Pediatric Rehabilitation, Huai'an Maternal and Child Health Care Center, Huai'an, Jiangsu 223021, China; Affiliated Hospital of Yang Zhou University Huai'an Maternal and Child Health Care Center, Huai'an, Jiangsu 223021, China
| | - Lu-Na He
- Department of Pediatric Rehabilitation, Huai'an Maternal and Child Health Care Center, Huai'an, Jiangsu 223021, China; Affiliated Hospital of Yang Zhou University Huai'an Maternal and Child Health Care Center, Huai'an, Jiangsu 223021, China
| | - Li-Na Wang
- Department of Pediatric Rehabilitation, Huai'an Maternal and Child Health Care Center, Huai'an, Jiangsu 223021, China; Affiliated Hospital of Yang Zhou University Huai'an Maternal and Child Health Care Center, Huai'an, Jiangsu 223021, China
| | - Kai-Yun Chen
- Drug Clinical Trials Office, The Fourth Affiliated Hospital of Nanchang University, Nanchang, Jiangxi 330003, China
| | - Shi-Da Qian
- Department of Orthopedics, The Fourth Affiliated Hospital of Nanchang University, Nanchang, Jiangxi 330003, China
| | - Xu-Huan Li
- Department of General Medicine, The Fourth Affiliated Hospital of Nanchang University, Nanchang, Jiangxi 330003, China
| | - Jing Zang
- Department of Pediatric Rehabilitation, Huai'an Maternal and Child Health Care Center, Huai'an, Jiangsu 223021, China; Affiliated Hospital of Yang Zhou University Huai'an Maternal and Child Health Care Center, Huai'an, Jiangsu 223021, China
| | - Dong-Ming Wang
- Department of Pediatric Rehabilitation, Huai'an Maternal and Child Health Care Center, Huai'an, Jiangsu 223021, China; Affiliated Hospital of Yang Zhou University Huai'an Maternal and Child Health Care Center, Huai'an, Jiangsu 223021, China
| | - Xue-Feng Yu
- Department of Orthopedics, The Fourth Affiliated Hospital of Nanchang University, Nanchang, Jiangxi 330003, China.
| | - Jing Gao
- Department of Pediatric Rehabilitation, Huai'an Maternal and Child Health Care Center, Huai'an, Jiangsu 223021, China; Affiliated Hospital of Yang Zhou University Huai'an Maternal and Child Health Care Center, Huai'an, Jiangsu 223021, China.
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Esmaeili A, Eteghadi A, Landi FS, Yavari SF, Taghipour N. Recent approaches in regenerative medicine in the fight against neurodegenerative disease. Brain Res 2024; 1825:148688. [PMID: 38042394 DOI: 10.1016/j.brainres.2023.148688] [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: 10/12/2023] [Revised: 11/23/2023] [Accepted: 11/24/2023] [Indexed: 12/04/2023]
Abstract
Neurodegenerative diseases arise due to slow and gradual loss of structure and/or function of neurons and glial cells and cause different degrees of loss of cognition abilities and sensation. The little success in developing effective treatments imposes a high and regressive economic impact on society, patients and their families. In recent years, regenerative medicine has provided a great opportunity to research new innovative strategies with strong potential to treatleva these diseases. These effects are due to the ability of suitable cells and biomaterials to regenerate damaged nerves with differentiated cells, creating an appropriate environment for recovering or preserving existing healthy neurons and glial cells from destruction and damage. Ultimately, a better understanding and thus a further investigation of stem cell technology, tissue engineering, gene therapy, and exosomes allows progress towards practical and effective treatments for neurodegenerative diseases. Therefore, in this review, advances currently being developed in regenerative medicine using animal models and human clinical trials in neurological disorders are summarized.
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Affiliation(s)
- Ali Esmaeili
- Medical Nanotechnology and Tissue Engineering Research Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran; Department of Tissue Engineering and Applied Cell Sciences, School of Advanced Technologies in Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Atefeh Eteghadi
- Medical Nanotechnology and Tissue Engineering Research Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran; Department of Tissue Engineering and Applied Cell Sciences, School of Advanced Technologies in Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Farzaneh Saeedi Landi
- Medical Nanotechnology and Tissue Engineering Research Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran; Department of Tissue Engineering and Applied Cell Sciences, School of Advanced Technologies in Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Shadnaz Fakhteh Yavari
- Medical Nanotechnology and Tissue Engineering Research Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran; Department of Tissue Engineering and Applied Cell Sciences, School of Advanced Technologies in Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Niloofar Taghipour
- Medical Nanotechnology and Tissue Engineering Research Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran; Department of Tissue Engineering and Applied Cell Sciences, School of Advanced Technologies in Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran.
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Ma L, Song H, Zhang CY, Hou D. MiR-192-5p Ameliorates Hepatic Lipid Metabolism in Non-Alcoholic Fatty Liver Disease by Targeting Yy1. Biomolecules 2023; 14:34. [PMID: 38254634 PMCID: PMC10813355 DOI: 10.3390/biom14010034] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2023] [Revised: 12/08/2023] [Accepted: 12/16/2023] [Indexed: 01/24/2024] Open
Abstract
Non-alcoholic fatty liver disease (NAFLD) is characterized by excessive lipid accumulation in the liver. Clarifying the molecular mechanism of lipid metabolism is crucial for the treatment of NAFLD. We examined miR-192-5p levels in the livers of mice in which NAFLD was induced via a high-fat diet (HFD), as well as in mouse primary hepatocytes and human HepG2 cells treated with free fatty acids (FFAs). MiR-192-5p inhibitor was administered to NAFLD mice and hepatocytes to verify the specific function of miR-192-5p in NAFLD. We validated the target gene of miR-192-5p and further illustrated the effects of this miRNA on the regulation of triglyceride (TG) metabolism. We found that miR-192-5p was significantly increased in the livers of NAFLD mice and FFA-treated hepatocytes. Inhibition of miR-192-5p increased the accumulation of hepatic TGs and aggravated hepatic steatosis in NAFLD mice. In FFA-treated hepatocytes, miR-192-5p inhibitors markedly increased TG content, whereas overexpression of miR-192-5p reduced TG levels. Yin Yang 1 (Yy1) was identified as the target gene of miR-192-5p, which regulates TG synthesis via the YY1/fatty-acid synthase (FASN) pathway. Our results demonstrated that miR-192-5p should be considered a protective regulator in NAFLD that can inhibit hepatic TG synthesis by targeting Yy1.
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Affiliation(s)
- Lina Ma
- Nanjing Drum Tower Hospital Center of Molecular Diagnostic and Therapy, State Key Laboratory of Pharmaceutical Biotechnology, School of Life Sciences, Nanjing University, Nanjing 210023, China; (L.M.); (H.S.)
- Jiangsu Engineering Research Center for MicroRNA Biology and Biotechnology, NJU Advanced Institute of Life Sciences (NAILS), Nanjing 210023, China
- Research Unit of Extracellular RNA, Chinese Academy of Medical Sciences, Nanjing 210023, China
| | - Huichen Song
- Nanjing Drum Tower Hospital Center of Molecular Diagnostic and Therapy, State Key Laboratory of Pharmaceutical Biotechnology, School of Life Sciences, Nanjing University, Nanjing 210023, China; (L.M.); (H.S.)
- Jiangsu Engineering Research Center for MicroRNA Biology and Biotechnology, NJU Advanced Institute of Life Sciences (NAILS), Nanjing 210023, China
- Research Unit of Extracellular RNA, Chinese Academy of Medical Sciences, Nanjing 210023, China
| | - Chen-Yu Zhang
- Nanjing Drum Tower Hospital Center of Molecular Diagnostic and Therapy, State Key Laboratory of Pharmaceutical Biotechnology, School of Life Sciences, Nanjing University, Nanjing 210023, China; (L.M.); (H.S.)
- Jiangsu Engineering Research Center for MicroRNA Biology and Biotechnology, NJU Advanced Institute of Life Sciences (NAILS), Nanjing 210023, China
- Research Unit of Extracellular RNA, Chinese Academy of Medical Sciences, Nanjing 210023, China
| | - Dongxia Hou
- Nanjing Drum Tower Hospital Center of Molecular Diagnostic and Therapy, State Key Laboratory of Pharmaceutical Biotechnology, School of Life Sciences, Nanjing University, Nanjing 210023, China; (L.M.); (H.S.)
- Jiangsu Engineering Research Center for MicroRNA Biology and Biotechnology, NJU Advanced Institute of Life Sciences (NAILS), Nanjing 210023, China
- Research Unit of Extracellular RNA, Chinese Academy of Medical Sciences, Nanjing 210023, China
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Xu D, Guo Q. miR-26a Improves Microglial Activation and Neuronal Apoptosis in a Rat Model of Cerebral Infarction by Regulating the TREM1-TLR4/MyD88/NF-κB Axis. Dev Neurosci 2023; 46:221-236. [PMID: 37703835 DOI: 10.1159/000533813] [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: 02/20/2023] [Accepted: 08/24/2023] [Indexed: 09/15/2023] Open
Abstract
Emerging studies have indicated that abnormally expressed microRNAs (miRNAs) are related to the pathogenesis of cerebral ischemia. Nevertheless, the function of miR-26a in neuronal damage and microglial activation during cerebral infarction remains elusive. It was revealed that miR-26a was downregulated in oxygen-glucose deprivation (OGD)-treated microglia and neurons. Overexpressing miR-26a reduced the inflammatory reaction in BV2 cells and decreased neuronal apoptosis following OGD stimulation. miR-26a upregulation inactivated the TLR4/MyD88/NF-κB pathway and inhibited TREM1 expression. Repressing NF-κB phosphorylation inhibited the miR-26a level. As supported by the dual-luciferase reporter assay, TREM1 was directly targeted by miR-26a. Furthermore, a rat model of middle cerebral artery occlusion (MCAO) was built. We discovered that miR-26a improved cognitive, learning, and motor functions and reduced cerebral edema in MCAO rats. Mechanistically, upregulating miR-26a reduced inflammation and neuronal apoptosis by mitigating the TREM1-TLR4/MyD88/NF-κB pathway in the MCAO rat model. Collectively, this study verified that the miR-26a-TREM1-TLR4/MyD88/NF-κB axis contributes to modulating OGD-mediated microglial activation and neuronal injury.
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Affiliation(s)
- Daxiong Xu
- Department of Neurology, Bazhong Central Hospital, Bazhong, China
| | - Qi'an Guo
- Department of Anesthesiology, The Second Affiliated Hospital of Harbin Medical University, Harbin, China,
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Rashidi SK, Kalirad A, Rafie S, Behzad E, Dezfouli MA. The role of microRNAs in neurobiology and pathophysiology of the hippocampus. Front Mol Neurosci 2023; 16:1226413. [PMID: 37727513 PMCID: PMC10506409 DOI: 10.3389/fnmol.2023.1226413] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2023] [Accepted: 08/11/2023] [Indexed: 09/21/2023] Open
Abstract
MicroRNAs (miRNAs) are short non-coding and well-conserved RNAs that are linked to many aspects of development and disorders. MicroRNAs control the expression of genes related to different biological processes and play a prominent role in the harmonious expression of many genes. During neural development of the central nervous system, miRNAs are regulated in time and space. In the mature brain, the dynamic expression of miRNAs continues, highlighting their functional importance in neurons. The hippocampus, as one of the crucial brain structures, is a key component of major functional connections in brain. Gene expression abnormalities in the hippocampus lead to disturbance in neurogenesis, neural maturation and synaptic formation. These disturbances are at the root of several neurological disorders and behavioral deficits, including Alzheimer's disease, epilepsy and schizophrenia. There is strong evidence that abnormalities in miRNAs are contributed in neurodegenerative mechanisms in the hippocampus through imbalanced activity of ion channels, neuronal excitability, synaptic plasticity and neuronal apoptosis. Some miRNAs affect oxidative stress, inflammation, neural differentiation, migration and neurogenesis in the hippocampus. Furthermore, major signaling cascades in neurodegeneration, such as NF-Kβ signaling, PI3/Akt signaling and Notch pathway, are closely modulated by miRNAs. These observations, suggest that microRNAs are significant regulators in the complicated network of gene regulation in the hippocampus. In the current review, we focus on the miRNA functional role in the progression of normal development and neurogenesis of the hippocampus. We also consider how miRNAs in the hippocampus are crucial for gene expression mechanisms in pathophysiological pathways.
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Affiliation(s)
- Seyed Khalil Rashidi
- Department of Medical Biotechnology, Faculty of Medicine, Semnan University of Medical Sciences, Semnan, Iran
| | - Ata Kalirad
- Department of Integrative Evolutionary Biology, Max Planck Institute for Biology Tübingen, Tübingen, Germany
| | - Shahram Rafie
- Department of Neurology, School of Medicine, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran
- Neuroscience Lab, Golestan Hospital, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran
| | - Ebrahim Behzad
- Department of Neurology, School of Medicine, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran
- Neuroscience Lab, Golestan Hospital, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran
| | - Mitra Ansari Dezfouli
- Department of Neurology, School of Medicine, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran
- Neuroscience Lab, Golestan Hospital, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran
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6
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Luo Y, Qu J, He Z, Zhang M, Zou Z, Li L, Zhang Y, Ye J. Human Umbilical Cord Mesenchymal Stem Cells Improve the Status of Hypoxic/Ischemic Cerebral Palsy Rats by Downregulating NogoA/NgR/Rho Pathway. Cell Transplant 2023; 32:9636897231210069. [PMID: 37982384 PMCID: PMC10664427 DOI: 10.1177/09636897231210069] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2023] [Revised: 08/31/2023] [Accepted: 09/28/2023] [Indexed: 11/21/2023] Open
Abstract
Human umbilical cord mesenchymal stem cells (hUCMSC) have shown promising potential in ameliorating brain injury, but the mechanism is unclear. We explore the role of NogoA/NgR/Rho pathway in mediating hUCMSC to improve neurobehavioral status and alleviate brain injury in hypoxia/ischemia-induced CP (cerebral palsy) rat model in order to promote the clinical application of stem cell therapy in CP. The injury model of HT22 cells was established after 3 h hypoxia, and then co-cultured with hUCMSC. The rat model of CP was established by ligation of the left common carotid artery for 2.5 h. Subsequently, hUCMSC was administered via the tail vein once a week for a total of four times. The neurobehavioral status of CP rats was determined by behavioral experiment, and the pathological brain injury was determined by pathological staining method. The mRNA and protein expressions of NogoA, NgR, RhoA, Rac1, and CDC42 in brain tissues of rats in all groups and cell groups were detected by real-time quantitative polymerase chain reaction (RT-qPCR), Western blot, and immunofluorescence. The CP rats exhibited obvious motor function abnormalities and pathological damage. Compared with the control group, hUCMSC transplantation could significantly improve the neurobehavioral situation and attenuate brain pathological injury in CP rats. The relative expression of NogoA, NgR, RhoA mRNA, and protein in brain tissues of rats in the CP group was significantly higher than the rats in the sham and CP+hUCMSC group. The relative expression of Rac1, CDC42 mRNA, and protein in brain tissues of rats in the CP group was significantly lower than the rats in the sham and CP+hUCMSC group. The animal experiment results were consistent with the experimental trend of hypoxic injury of HT22 cells. This study confirmed that hUCMSC can efficiently improve neurobehavioral status and alleviate brain injury in hypoxia/ischemia-induced CP rat model and HT22 cell model through downregulating the NogoA/NgR/Rho pathway.
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Affiliation(s)
- Yaoling Luo
- Subcenter for Stem Cell Clinical Translation, First Affiliated Hospital of Gannan Medical University, Ganzhou, China
- Clinical Medicine Research Center, First Affiliated Hospital of Gannan Medical University, Ganzhou, China
- Ganzhou Key Laboratory of Stem Cell and Regenerative Medicine, First Affiliated Hospital of Gannan Medical University, Ganzhou, China
| | - Jiayang Qu
- Subcenter for Stem Cell Clinical Translation, First Affiliated Hospital of Gannan Medical University, Ganzhou, China
- School of Rehabilitation Medicine Gannan Medical University, Ganzhou, China
| | - Zhengyi He
- Subcenter for Stem Cell Clinical Translation, First Affiliated Hospital of Gannan Medical University, Ganzhou, China
- Clinical Medicine Research Center, First Affiliated Hospital of Gannan Medical University, Ganzhou, China
- Ganzhou Key Laboratory of Stem Cell and Regenerative Medicine, First Affiliated Hospital of Gannan Medical University, Ganzhou, China
| | - Minhong Zhang
- Subcenter for Stem Cell Clinical Translation, First Affiliated Hospital of Gannan Medical University, Ganzhou, China
- Clinical Medicine Research Center, First Affiliated Hospital of Gannan Medical University, Ganzhou, China
- Ganzhou Key Laboratory of Stem Cell and Regenerative Medicine, First Affiliated Hospital of Gannan Medical University, Ganzhou, China
| | - Zhengwei Zou
- Subcenter for Stem Cell Clinical Translation, First Affiliated Hospital of Gannan Medical University, Ganzhou, China
- Clinical Medicine Research Center, First Affiliated Hospital of Gannan Medical University, Ganzhou, China
- Ganzhou Key Laboratory of Stem Cell and Regenerative Medicine, First Affiliated Hospital of Gannan Medical University, Ganzhou, China
| | - Lincai Li
- Subcenter for Stem Cell Clinical Translation, First Affiliated Hospital of Gannan Medical University, Ganzhou, China
- Clinical Medicine Research Center, First Affiliated Hospital of Gannan Medical University, Ganzhou, China
- Ganzhou Key Laboratory of Stem Cell and Regenerative Medicine, First Affiliated Hospital of Gannan Medical University, Ganzhou, China
| | | | - Junsong Ye
- Subcenter for Stem Cell Clinical Translation, First Affiliated Hospital of Gannan Medical University, Ganzhou, China
- Ganzhou Key Laboratory of Stem Cell and Regenerative Medicine, First Affiliated Hospital of Gannan Medical University, Ganzhou, China
- Key Laboratory of Prevention and Treatment of Cardiovascular and Cerebrovascular Diseases, Ministry of Education, Gannan Medical University, Ganzhou, China
- Key Laboratory of Biomaterials and Biofabrication in Tissue Engineering of Jiangxi Province, Gannan Medical University, Ganzhou, China
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An Emerging Role for Epigenetics in Cerebral Palsy. J Pers Med 2021; 11:jpm11111187. [PMID: 34834539 PMCID: PMC8625874 DOI: 10.3390/jpm11111187] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2021] [Revised: 11/04/2021] [Accepted: 11/09/2021] [Indexed: 12/29/2022] Open
Abstract
Cerebral palsy is a set of common, severe, motor disabilities categorized by a static, nondegenerative encephalopathy arising in the developing brain and associated with deficits in movement, posture, and activity. Spastic CP, which is the most common type, involves high muscle tone and is associated with altered muscle function including poor muscle growth and contracture, increased extracellular matrix deposition, microanatomic disruption, musculoskeletal deformities, weakness, and difficult movement control. These muscle-related manifestations of CP are major causes of progressive debilitation and frequently require intensive surgical and therapeutic intervention to control. Current clinical approaches involve sophisticated consideration of biomechanics, radiologic assessments, and movement analyses, but outcomes remain difficult to predict. There is a need for more precise and personalized approaches involving omics technologies, data science, and advanced analytics. An improved understanding of muscle involvement in spastic CP is needed. Unfortunately, the fundamental mechanisms and molecular pathways contributing to altered muscle function in spastic CP are only partially understood. In this review, we outline evidence supporting the emerging hypothesis that epigenetic phenomena play significant roles in musculoskeletal manifestations of CP.
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Zhao B, Qian M, Zhang Y, Yin F. Retracted: Stem cells from human exfoliated deciduous teeth transmit microRNA-26a to protect rats with experimental intracerebral hemorrhage from cerebral injury via suppressing CTGF. Brain Res Bull 2021; 168:146-155. [PMID: 33333175 DOI: 10.1016/j.brainresbull.2020.12.006] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2020] [Revised: 11/19/2020] [Accepted: 12/10/2020] [Indexed: 12/17/2022]
Abstract
OBJECTIVE A large number of studies have shown that stem cells from human exfoliated deciduous teeth (SHED) has a protective effect on brain damage, but its specific mechanism is unclear. This research focused on the effect of microRNA (miR)-26a that transmitted by SHED in intracerebral hemorrhage (ICH). METHODS SHED were extracted from deciduous teeth of healthy children and miR-26a expression in SHED was altered through transfection, and then the SHED were conducted with neuron differentiated induction, expression of β3 tubulin, MAP-2 and glial fibrillary acidic protein (GFAP), number of dendritic spines and cell proliferation were detected. ICH rat models were established by stereotactic injection of collagenase VII into the left striatum and the modeled rats were injected with miR-26a mimic or inhibitor-transfected SHED suspension. Then, the brain water content, blood-brain barrier permeability, pathological changes, and injury and apoptosis in the nervous cells in brain were assessed. The expression of miR-26a and CTGF in SHED and rats' brain tissues was evaluated and the target relation between miR-26a and CTGF was detected. RESULTS In SHED after induction, upregulated miR-26a could increase number of dendritic spines, cell proliferation, and expression of β3 tubulin, MAP-2 and GFAP, and restrain CTGF expression. In rat models, SHED engineered to overexpress miR-26a could attenuate brain water content, Evans blue content, apoptosis, pathological injury and expression of CTGF and Bax, while promoted number of Nissl bodies and expression of Bcl-2 in the nervous cells in brain in ICH rats. Furthermore, miR-26a competitively bound to CTGF. CONCLUSION Our findings provided the evidence that SHED could transmit miR-26a to protect ICH rats from cerebral injury by repressing CTGF, which may contribute to ICH therapy.
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Affiliation(s)
- Bin Zhao
- Department of Neurosurgery, The Second Hospital of Jilin University, Changchun, 130041, Jilin Province, China
| | - Min Qian
- Department of Neonatology, The Second Hospital of Jilin University, Changchun, 130041, Jilin Province, China
| | - Yan Zhang
- Department of Thoracic Surgery, The Second Hospital of Jilin University, Changchun, 130041, Jilin Province, China
| | - Fei Yin
- Department of Neurology, The Second Hospital of Jilin University, Changchun, 130041, Jilin Province, China.
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Wen L, Sun J, Chen X, Du R. miR-135b-dependent downregulation of S100B promotes neural stem cell differentiation in a hypoxia/ischemia-induced cerebral palsy rat model. Am J Physiol Cell Physiol 2020; 319:C955-C966. [PMID: 32491925 DOI: 10.1152/ajpcell.00481.2019] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
Cerebral palsy (CP) is frequently caused by brain injury during pregnancy, delivery, or the immediate postnatal period. The differentiation potential of neural stem cell (NSC) makes them effective in restoring injured tissues and organs with minimal risks of side effects. In this study, we identified a novel microRNA-135b (miR-135b) in CP and investigated its functional role in mediating NSC differentiation. CP models were established in Wistar rats and validated with the Y-maze test. Gain- and loss-of-function experimentation was performed on CP rats. Then NSCs were isolated and the expression patterns of miR-135b and S100B were altered in NSCs. S100B exhibited high expression in the hippocampus tissues of CP models, which was targeted by miR-135b. miR-135b elevation or S100B silencing resulted in promoted NSC differentiation, alleviated brain injury, and inhibited NSC apoptosis in hippocampus tissues of CP rats. S100B downregulation targeted by miR-135b overexpression contributed to the inactivation of the signal transducer and activator of transcription-3 (STAT3) pathway, which promoted NSC differentiation and proliferation but inhibited NSC apoptosis. Our results highlight the suppressor role played by miR-135b in CP by inducing NSC differentiation via inactivation of S100B-dependent STAT3 pathway.
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Affiliation(s)
- Linbao Wen
- Department of Neurosurgery, the Second Affiliated Hospital of Guizhou University of Traditional Chinese Medicine, Guiyang, People's Republic of China
| | - Jingwei Sun
- Department of Neurosurgery, the Second Affiliated Hospital of Guizhou University of Traditional Chinese Medicine, Guiyang, People's Republic of China
| | - Xionggao Chen
- Department of Neurosurgery, the Second Affiliated Hospital of Guizhou University of Traditional Chinese Medicine, Guiyang, People's Republic of China
| | - Ruili Du
- Department of Radiology, the Second Affiliated Hospital of Guizhou University of Traditional Chinese Medicine, Guiyang, People's Republic of China
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He X, Liu Z, Pang Y, Xu W, Zhao L, Li H. Downregulation of transcription factor TCTP elevates microRNA-200a expression to restrain Myt1L expression, thereby improving neurobehavior and oxidative stress injury in cerebral palsy rats. Cell Cycle 2020; 19:855-869. [PMID: 32174219 DOI: 10.1080/15384101.2020.1717044] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022] Open
Abstract
Transcription factors have already been proposed to work on some human diseases. Yet the role of translationally controlled tumor protein (TCTP) in cerebral palsy (CP) remains elusive. This study intends to examine the mechanism of TCTP on CP by regulating microRNA-200a (miR-200a).CP models of rats were established referring to the internationally recognized improved hypoxic ischemic encephalopathy modeling method. The neuroethology of rats, ultrastructure and pathological condition in brain tissues of rats were observed through several assays. The expression of TCTP, miR-200a, myelin transcription factor 1-like (Myt1L), tyrosine hydroxylase (TH) and inducible nitric oxide synthase (iNOS) along with apoptosis in brain tissues of rats was detected. The levels of reactive oxygen species (ROS), malondialdehyde (MDA), glutathione (GSH), glutathione peroxidase (GSH-Px), superoxide dismutase (SOD), tumor necrosis factor-α (TNF-α) and interleukin-6 (IL-6) in brain tissues of rats were determined. The binding site between miR-200a and Myt1L was analyzed.TCTP and Myt1L were overexpressed and miR-200a was under-expressed in CP rats. Elevated miR-200a ameliorated neurobehavior of CP rats and pathological injury in brain tissues. Elevated miR-200a up-regulated TH, GSH, GSH-Px, and SOD levels, down-regulated iNOS, ROS, MDA, TNF-α, and IL-6 levels, and attenuated neuronal apoptosis in brain tissues of CP rats. Myt1L was a target gene of miR-200a.Altogether, our study suggested that diminution of transcription factor TCTP up-regulates miR-200a to limit Myt1L expression, thereby improving neurobehavior and oxidative stress injury in CP rats.
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Affiliation(s)
- Xiaoxia He
- The Second Department of Rehabilitation, The Second Hospital of Hebei Medical University, Shijiazhuang, China
| | - Zibo Liu
- The Department of Endocrinology, The Second Hospital of Hebei Medical University, Shijiazhuang, China
| | - Yatao Pang
- The Second Department of Rehabilitation, The Second Hospital of Hebei Medical University, Shijiazhuang, China
| | - Wei Xu
- The Second Department of Rehabilitation, The Second Hospital of Hebei Medical University, Shijiazhuang, China
| | - Long Zhao
- The Second Department of Rehabilitation, The Second Hospital of Hebei Medical University, Shijiazhuang, China
| | - Hongling Li
- The Second Department of Rehabilitation, The Second Hospital of Hebei Medical University, Shijiazhuang, China
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