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Miao H, Zhao Q, Dai Y, Qiu J. Neuroprotective effects of miRNA-326 knockout in neonatal hypoxic-ischemic brain damage mice via the δ-opioid receptor. Biochem Biophys Res Commun 2024; 726:150259. [PMID: 38909535 DOI: 10.1016/j.bbrc.2024.150259] [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: 06/06/2024] [Accepted: 06/11/2024] [Indexed: 06/25/2024]
Abstract
Hypoxic-ischemic brain damage (HIBD) in the perinatal period is an important cause of cerebral damage and long-term neurological sequelae, and can place much pressure on families and society. Our previous study demonstrated that miRNA-326 reduces neuronal apoptosis by up-regulating the δ-opioid receptor (DOR) under oxygen-glucose deprivation in vitro. In the present study, we aimed to explore the neuroprotective effects of the miRNA-326/DOR axis by inhibiting apoptosis in HIBD using neonatal miRNA-326 knockout mice. Neonatal C57BL/6 mice, neonatal miRNA-326 knockout mice, and neonatal miRNA-326 knockout mice intraperitoneally injected with the DOR inhibitor naltrindole were treated with hypoxic-ischemia (HI). Neurological deficit scores, magnetic resonance imaging, terminal deoxynucleotidyl transferase-mediated uridine 5'-triphosphate-biotin nick end labeling, and Caspase-3, Bax, and B-cell lymphoma 2 (Bcl-2) expression were evaluated on day 2 after HI. Neurobehavioral analyses were performed on days 2 and 28 after HI. Additionally, the Morris water maze test was conducted on days 28. Compared with HI-treated neonatal C57BL/6 mice, HI-treated neonatal miRNA-326 knockout mice had higher neurological deficit scores, smaller cerebral infarction areas, and improved motor function, reaction ability, and long-term spatial learning and memory. These effects were likely the result of inhibiting apoptosis; the DOR inhibitor reversed these neuroprotective effects. Our findings indicate that miRNA-326 knockout plays a neuroprotective effect in neonatal HIBD by inhibiting apoptosis via the target gene DOR.
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MESH Headings
- Animals
- Male
- Mice
- Animals, Newborn
- Apoptosis/genetics
- Hypoxia-Ischemia, Brain/genetics
- Hypoxia-Ischemia, Brain/metabolism
- Hypoxia-Ischemia, Brain/pathology
- Mice, Inbred C57BL
- Mice, Knockout
- MicroRNAs/genetics
- MicroRNAs/metabolism
- Neuroprotective Agents/pharmacology
- Receptors, Opioid, delta/genetics
- Receptors, Opioid, delta/metabolism
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Affiliation(s)
- Hong Miao
- Department of Neonatology, Nanjing Drum Tower Hospital, Affiliated Hospital of Medical School, Nanjing University, Nanjing, China
| | - Qiao Zhao
- Department of Neonatology, Nanjing Drum Tower Hospital, Nanjing Drum Tower Hospital Clinical College of Nanjing Medical University, Nanjing, China
| | - Yimin Dai
- Department of Obstetrics and Gynaecology, Nanjing Drum Tower Hospital, Affiliated Hospital of Medical School, Nanjing University, Nanjing, China
| | - Jie Qiu
- Department of Neonatology, Nanjing Drum Tower Hospital, Affiliated Hospital of Medical School, Nanjing University, Nanjing, China; Department of Neonatology, Nanjing Drum Tower Hospital, Nanjing Drum Tower Hospital Clinical College of Nanjing Medical University, Nanjing, China.
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2
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Zhang G, Sun C, Zhou G, Zhang Q. Luteolin protects mouse hippocampal neuronal cells against isoflurane-induced neurotoxicity through miR-214/PTEN/Akt pathway. Neurotoxicology 2024; 103:310-319. [PMID: 39004286 DOI: 10.1016/j.neuro.2024.07.008] [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: 04/02/2024] [Revised: 07/01/2024] [Accepted: 07/11/2024] [Indexed: 07/16/2024]
Abstract
Isoflurane is one of the most commonly used anaesthetic agents in surgery procedures. During the past decades, isoflurane has been found to cause impairment in neurological capabilities in new-borns and elderly patients. Luteolin is a flavonoid that has been documented to possess a neuroprotective effect. Here we investigated the putative neuroprotective effects of luteolin on isoflurane-induced neurotoxicity in mouse hippocampal neuronal HT22 cells and explored the potential mechanisms. We demonstrated that luteolin improved mitochondrial dysfunction and reduced oxidative stress and apoptosis in isoflurane-treated HT22 cells, and thus inhibiting the isoflurane-induced neuronal injury. Further investigations showed that isoflurane exposure caused miR-214 downregulation, which could be mitigated by treatment with luteolin. Knockdown of miR-214 attenuated the neuroprotection of luteolin on isoflurane-induced neuronal injury. More importantly, luteolin inhibited isoflurane-caused regulation of the PTEN/Akt pathway, while miR-214 knockdown altered the regulatory effect of luteolin on the PTEN/Akt pathway. Furthermore, the effects of miR-214 knockdown on the neuroprotection of luteolin could also be prevented by knockdown of PTEN, implying that the neuroprotective effect of luteolin was mediated by miR-214/PTEN/Akt signaling pathway. These findings provided evidence for the potential application of luteolin in preventing isoflurane-induced neurotoxicity.
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Affiliation(s)
- Guodong Zhang
- Department of Anesthesiology, Nanyang First People's Hospital, Nanyang 473000, China
| | - Chuang Sun
- Department of Anesthesiology, Nanyang First People's Hospital, Nanyang 473000, China
| | - Gang Zhou
- Department of Anesthesiology, Nanyang First People's Hospital, Nanyang 473000, China
| | - Qihang Zhang
- Department of Anesthesiology, Chun'an First People's Hospital, Hangzhou 311700, China.
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3
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Yang X, Yu D, Gao F, Yang J, Chen Z, Liu J, Yang X, Li L, Zhang Y, Yan C. Integrative Analysis of Morphine-Induced Differential Circular RNAs and ceRNA Networks in the Medial Prefrontal Cortex. Mol Neurobiol 2024; 61:4602-4618. [PMID: 38109006 DOI: 10.1007/s12035-023-03859-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2023] [Accepted: 12/04/2023] [Indexed: 12/19/2023]
Abstract
Circular RNAs (circRNAs) are a novel type of non-coding RNAs. Despite the fact that the functional mechanisms of most circRNAs remain unknown, emerging evidence indicates that circRNAs could sponge microRNAs (miRNAs), bind to RNA binding proteins (RBP), and even be translated into protein. Recent research has demonstrated the crucial roles played by circRNAs in neuropsychiatric disorders. The medial prefrontal cortex (mPFC) is a crucial component of drug reward circuitry and exerts top-down control over cognitive functions. However, there is currently limited knowledge about the correlation between circRNAs and morphine-associated contextual memory in the mPFC. Here, we performed morphine-induced conditioned place preference (CPP) in mice and extracted mPFC tissue for RNA-sequencing. Our study represented the first attempt to identify differentially expressed circRNAs (DEcircRNAs) and mRNAs (DEmRNAs) in the mPFC after morphine-induced CPP. We identified 47 significantly up-regulated DEcircRNAs and 429 significantly up-regulated DEmRNAs, along with 74 significantly down-regulated DEcircRNAs and 391 significantly down-regulated DEmRNAs. Functional analysis revealed that both DEcircRNAs and DEmRNAs were closely associated with neuroplasticity. To further validate the DEcircRNAs, we conducted qRT-PCR, Sanger sequencing, and RNase R digestion assays. Additionally, using an integrated bioinformatics approach, we constructed ceRNA networks and identified critical circRNA/miRNA/mRNA axes that contributed to the development of morphine-associated contextual memory. In summary, our study provided novel insights into the role of circRNAs in drug-related memory, specifically from the perspective of ceRNAs.
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Affiliation(s)
- Xixi Yang
- College of Forensic Medicine, Xi'an Jiaotong University, Xi'an 710061, Shaanxi, China
- Key Laboratory of Forensic Medicine, National Health Commission, Xi'an 710061, Shaanxi, China
- Bio-Evidence Sciences Academy, Western China Science and Technology Innovation Harbor, Xi'an Jiaotong University, Xi'an 710100, Shaanxi, China
| | - Dongyu Yu
- College of Forensic Medicine, Xi'an Jiaotong University, Xi'an 710061, Shaanxi, China
- Key Laboratory of Forensic Medicine, National Health Commission, Xi'an 710061, Shaanxi, China
- Bio-Evidence Sciences Academy, Western China Science and Technology Innovation Harbor, Xi'an Jiaotong University, Xi'an 710100, Shaanxi, China
| | - Feifei Gao
- College of Forensic Medicine, Xi'an Jiaotong University, Xi'an 710061, Shaanxi, China
- Key Laboratory of Forensic Medicine, National Health Commission, Xi'an 710061, Shaanxi, China
- Bio-Evidence Sciences Academy, Western China Science and Technology Innovation Harbor, Xi'an Jiaotong University, Xi'an 710100, Shaanxi, China
| | - Jingsi Yang
- College of Forensic Medicine, Xi'an Jiaotong University, Xi'an 710061, Shaanxi, China
- Key Laboratory of Forensic Medicine, National Health Commission, Xi'an 710061, Shaanxi, China
- Bio-Evidence Sciences Academy, Western China Science and Technology Innovation Harbor, Xi'an Jiaotong University, Xi'an 710100, Shaanxi, China
| | - Zhennan Chen
- College of Forensic Medicine, Xi'an Jiaotong University, Xi'an 710061, Shaanxi, China
- Key Laboratory of Forensic Medicine, National Health Commission, Xi'an 710061, Shaanxi, China
- Bio-Evidence Sciences Academy, Western China Science and Technology Innovation Harbor, Xi'an Jiaotong University, Xi'an 710100, Shaanxi, China
| | - Junlin Liu
- College of Forensic Medicine, Xi'an Jiaotong University, Xi'an 710061, Shaanxi, China
- Key Laboratory of Forensic Medicine, National Health Commission, Xi'an 710061, Shaanxi, China
- Bio-Evidence Sciences Academy, Western China Science and Technology Innovation Harbor, Xi'an Jiaotong University, Xi'an 710100, Shaanxi, China
| | - Xiaoyu Yang
- College of Forensic Medicine, Xi'an Jiaotong University, Xi'an 710061, Shaanxi, China
- Key Laboratory of Forensic Medicine, National Health Commission, Xi'an 710061, Shaanxi, China
- Bio-Evidence Sciences Academy, Western China Science and Technology Innovation Harbor, Xi'an Jiaotong University, Xi'an 710100, Shaanxi, China
| | - Lanjiang Li
- College of Forensic Medicine, Xi'an Jiaotong University, Xi'an 710061, Shaanxi, China
- Key Laboratory of Forensic Medicine, National Health Commission, Xi'an 710061, Shaanxi, China
- Bio-Evidence Sciences Academy, Western China Science and Technology Innovation Harbor, Xi'an Jiaotong University, Xi'an 710100, Shaanxi, China
| | - Yuxiang Zhang
- College of Forensic Medicine, Xi'an Jiaotong University, Xi'an 710061, Shaanxi, China.
- Key Laboratory of Forensic Medicine, National Health Commission, Xi'an 710061, Shaanxi, China.
- Bio-Evidence Sciences Academy, Western China Science and Technology Innovation Harbor, Xi'an Jiaotong University, Xi'an 710100, Shaanxi, China.
| | - Chunxia Yan
- College of Forensic Medicine, Xi'an Jiaotong University, Xi'an 710061, Shaanxi, China.
- Key Laboratory of Forensic Medicine, National Health Commission, Xi'an 710061, Shaanxi, China.
- Bio-Evidence Sciences Academy, Western China Science and Technology Innovation Harbor, Xi'an Jiaotong University, Xi'an 710100, Shaanxi, China.
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Perdaens O, Bottemanne P, van Pesch V. MicroRNAs dysregulated in multiple sclerosis affect the differentiation of CG-4 cells, an oligodendrocyte progenitor cell line. Front Cell Neurosci 2024; 18:1336439. [PMID: 38486710 PMCID: PMC10937391 DOI: 10.3389/fncel.2024.1336439] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2023] [Accepted: 01/24/2024] [Indexed: 03/17/2024] Open
Abstract
Introduction Demyelination is one of the hallmarks of multiple sclerosis (MS). While remyelination occurs during the disease, it is incomplete from the start and strongly decreases with its progression, mainly due to the harm to oligodendrocyte progenitor cells (OPCs), causing irreversible neurological deficits and contributing to neurodegeneration. Therapeutic strategies promoting remyelination are still very preliminary and lacking within the current treatment panel for MS. Methods In a previous study, we identified 21 microRNAs dysregulated mostly in the CSF of relapsing and/or remitting MS patients. In this study we transfected the mimics/inhibitors of several of these microRNAs separately in an OPC cell line, called CG-4. We aimed (1) to phenotypically characterize their effect on OPC differentiation and (2) to identify corroborating potential mRNA targets via immunocytochemistry, RT-qPCR analysis, RNA sequencing, and Gene Ontology enrichment analysis. Results We observed that the majority of 13 transfected microRNA mimics decreased the differentiation of CG-4 cells. We demonstrate, by RNA sequencing and independent RT-qPCR analyses, that miR-33-3p, miR-34c-5p, and miR-124-5p arrest OPC differentiation at a late progenitor stage and miR-145-5p at a premyelinating stage as evidenced by the downregulation of premyelinating oligodendrocyte (OL) [Tcf7l2, Cnp (except for miR-145-5p)] and mature OL (Plp1, Mbp, and Mobp) markers, whereas only miR-214-3p promotes OPC differentiation. We further propose a comprehensive exploration of their change in cell fate through Gene Ontology enrichment analysis. We finally confirm by RT-qPCR analyses the downregulation of several predicted mRNA targets for each microRNA that possibly support their effect on OPC differentiation by very distinctive mechanisms, of which some are still unexplored in OPC/OL physiology. Conclusion miR-33-3p, miR-34c-5p, and miR-124-5p arrest OPC differentiation at a late progenitor stage and miR-145-5p at a premyelinating stage, whereas miR-214-3p promotes the differentiation of CG-4 cells. We propose several potential mRNA targets and hypothetical mechanisms by which each microRNA exerts its effect. We hereby open new perspectives in the research on OPC differentiation and the pathophysiology of demyelination/remyelination, and possibly even in the search for new remyelinating therapeutic strategies in the scope of MS.
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Affiliation(s)
- Océane Perdaens
- Neurochemistry Group, Institute of NeuroScience, Université catholique de Louvain (UCLouvain), Brussels, Belgium
| | - Pauline Bottemanne
- Bioanalysis and Pharmacology of Bioactive Lipids, Louvain Drug Research Institute, Université catholique de Louvain (UCLouvain), Brussels, Belgium
| | - Vincent van Pesch
- Neurochemistry Group, Institute of NeuroScience, Université catholique de Louvain (UCLouvain), Brussels, Belgium
- Department of Neurology, Cliniques universitaires Saint-Luc, Université catholique de Louvain (UCLouvain), Brussels, Belgium
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5
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Liang Y, Xu XD, Xu X, Cai YB, Zhu ZX, Zhu L, Ren K. Linc00657 promoted pyroptosis in THP-1-derived macrophages and exacerbated atherosclerosis via the miR-106b-5p/TXNIP/NLRP3 axis. Int J Biol Macromol 2023; 253:126953. [PMID: 37734516 DOI: 10.1016/j.ijbiomac.2023.126953] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2023] [Revised: 09/04/2023] [Accepted: 09/12/2023] [Indexed: 09/23/2023]
Abstract
Long intergenic non-coding RNA 00657 (linc00657) is involved in various diseases, whereas its role in atherosclerosis (AS) development remains inconclusive. This study was designed to investigate the effects and underlying mechanisms of linc00657 in atherogenesis. The results showed that ox-LDL treatment significantly induced pyroptosis in human THP-1-derived macrophages. The secretion levels of LDH and pro-inflammatory factors were markedly enhanced, and the integrity of plasma membranes was disrupted in ox-LDL-treated THP-1-derived macrophages. These effects were significantly compensated after transfection with linc00657 siRNA and became more evident by linc00657 overexpression. Moreover, the effects of linc00657 overexpression on pyroptosis of THP-1-derived macrophages can also be robustly reversed by TXNIP knockdown or miR-106b-5p mimics transfection. Mechanistically, linc00657 enhanced TXNIP expression by competitively binding to miR-106b-5p, promoting NLRP3 inflammasome activation. Finally, we found that linc00657 overexpression significantly increased the expression of pyroptosis-related factors and decreased miR-106b-5p level in the aorta of high-fat-diet-fed apoE-/- mice. Furthermore, linc00657 up-regulation enlarged the plaque area, exacerbated plasma lipid profile, and increased pro-inflammatory cytokines levels in the serum, effects that were reversed by injection of miR-106b-5p agomir. This evidence indicated that linc00657 stimulated macrophage pyroptosis and aggravated the progression of AS via the miR-106b-5p/TXNIP/NLRP3 pathway.
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Affiliation(s)
- Yin Liang
- The First Clinical College, Guangdong Medical University, Zhanjiang 524000, Guangdong, PR China
| | - Xiao-Dan Xu
- Department of Pathology, The First Affiliated Hospital of Anhui Medical University, Hefei 230022, Anhui, PR China
| | - Xi Xu
- College of Nursing, Anhui University of Chinese Medicine, Hefei 230012, Anhui, PR China
| | - Yang-Bo Cai
- Division of Hepatobiliary and Pancreas Surgery, The Second Affiliated Hospital of Hainan Medical University, Haikou 570100, Hainan, PR China
| | - Zi-Xian Zhu
- Emergency and Trauma College, Hainan Medical University, Haikou 570100, Hainan, PR China
| | - Lin Zhu
- College of Nursing, Anhui University of Chinese Medicine, Hefei 230012, Anhui, PR China; Anhui Province Key Laboratory of Research & Development of Chinese Medicine, Hefei 230012, PR China.
| | - Kun Ren
- College of Nursing, Anhui University of Chinese Medicine, Hefei 230012, Anhui, PR China; Institute of Clinical Medicine, The Second Affiliated Hospital of Hainan Medical University, Haikou 570100, Hainan, PR China.
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6
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Zhang W, Zhou X, Tang Z, Fu L, Zou S, Tang S. Knockdown of lncRNA SNHG16 Attenuates the Proliferation and Radioresistance of Nasopharyngeal Carcinoma Cells by Mediating miR-31-5p/SFN Axis. Radiat Res 2023; 199:124-131. [PMID: 36520963 DOI: 10.1667/rade-22-00163.1] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2022] [Accepted: 11/11/2022] [Indexed: 12/23/2022]
Abstract
Nasopharyngeal carcinoma (NPC) is a rare head and neck tumor that threatens people's health. Radiotherapy is a major treatment for NPC, however, radioresistance of the NPC cells may contribute to treatment failure. LncRNA SNHG16 was upregulated in NPC; however, the function of SNHG16 in radioresistant NPC cells remains unexplored. RT-qPCR was applied for detecting SNHG16, miR-31-5p and SFN levels. MTT assay and colony formation assay were applied to assess the cell viability and proliferation. Dual luciferase was applied for assessing the relation among SNHG16, miR-31-5p and SFN. SFN level in NPC cells was examined by Western blot. The level of SNHG16 and SFN in NPC cells was significantly upregulated by exposure to radiation. In addition, silencing of SNHG16 or miR-31-5p mimics notably attenuated radioresistance of NPC cells. SNHG16 could positively regulate the expression of SFN in NPC cells through binding with miR-31-5p. Furthermore, SNHG16 downregulation obviously attenuated the proliferation and radioresistance of NPC cells by regulation of miR-31-5p/SFN axis. Knockdown of lncRNA SNHG16 attenuates radioresistance of nasopharyngeal carcinoma cells by miR-31-5p/SFN axis. Thus, our research data show a novel method for improving the efficacy of radiotherapy for NPC.
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Affiliation(s)
- Weiwei Zhang
- Department of Oncology, Brain Hospital of Hunan Province, Changsha 410007, Hunan Province, P.R. China
| | - Xiangqi Zhou
- Department of Oncology, The Affiliated Nanhua Hospital, Hengyang Medical School, University of South China, Hengyang 421002, Hunan Province, P.R. China
| | - Zhenwei Tang
- Department of Surgical Oncology, North China University of Science and Technology Affiliated Hospital, Tangshan 063000, Hebei Province, P.R. China
| | - Liang Fu
- Department of Nuclear Medicine, The Affiliated Nanhua Hospital, Hengyang Medical School, University of South China, Hengyang 421002, Hunan Province, P.R. China; and
| | - Shangchu Zou
- Department of Otorhinolaryngology, The Affiliated Nanhua Hospital, Hengyang Medical School, University of South China, Hengyang 421002, Hunan Province, P.R. China
| | - Sanyuan Tang
- Department of Oncology, The Affiliated Nanhua Hospital, Hengyang Medical School, University of South China, Hengyang 421002, Hunan Province, P.R. China
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