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Anchesi I, Schepici G, Mazzon E. LncRNAs and CircRNAs as Strategies against Pathological Conditions Caused by a Hypoxic/Anoxic State. Biomolecules 2023; 13:1622. [PMID: 38002304 PMCID: PMC10669691 DOI: 10.3390/biom13111622] [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: 09/26/2023] [Revised: 10/26/2023] [Accepted: 10/28/2023] [Indexed: 11/26/2023] Open
Abstract
Brain damage can be induced by oxygen deprivation. It is known that hypoxic or anoxic conditions can lead to changes in the expression levels of non-coding RNAs (ncRNAs), which, in turn, can be related to Central Nervous System (CNS) injuries. Therefore, it could be useful to investigate the involvement of non-coding RNAs (ncRNAs), as well as the underlying mechanisms which are able to modulate them in brain damage induced by hypoxic or anoxic conditions. In this review, we focused on recent research that associates these conditions with long non-coding RNAs (lncRNAs) and circular RNAs (circRNAs). The results of this review demonstrate that the expression of both lncRNAs and circRNAs can be influenced by oxygen deprivation conditions and so they can contribute to inducing damage or providing neuroprotection by affecting specific molecular pathways. Furthermore, several experimental studies have shown that ncRNA activity can be regulated by compounds, thus also modifying their transcriptomic profile and their effects on CNS damages induced by hypoxic/anoxic events.
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Affiliation(s)
| | | | - Emanuela Mazzon
- IRCCS Centro Neurolesi “Bonino-Pulejo”, Via Provinciale Palermo, Strada Statale 113, Contrada Casazza, 98124 Messina, Italy
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Wang C, Zhao F, He Y, E Y, Li S. Long non-coding RNA RMST serves as a diagnostic biomarker in patients with carotid artery stenosis and predicts the occurrence of cerebral ischemic event: A retrospective study. Vascular 2023; 31:908-913. [PMID: 35531613 DOI: 10.1177/17085381221100095] [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] [Indexed: 11/15/2022]
Abstract
OBJECTIVES The purpose of this retrospective study is to explore the diagnostic and prognostic roles of serum RMST in carotid artery stenosis (CAS). METHODS Serum levels of RMST were detected in CAS patients, and the relationship between degree of carotid stenosis and RMST levels was analyzed. The ROC curve was drawn to evaluate RMST value in predicting the risk of CAS. Then, all CAS patients received a 5-year follow-up. K-M curve was used to analyze the significance of RMST on prognosis of CAS patients. Multi-factor cox logistic regression analysis was conducted to evaluate independent factors for outcome of CAS patients. RESULTS An increased RMST expression was certified in CAS patients when compared with healthy controls. The increase of serum RMST expression was related to high degree of carotid stenosis. In addition, serum RMST was a possible diagnosis and an independent influencing factor of prognosis in patients with CAS. CONCLUSIONS Raised serum RMST level was found in patients with CAS. Detecting RMST expression levels was of high value for predicting the occurrence and outcomes in CAS.
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Affiliation(s)
- Cui Wang
- Pre-hospital Emergency Center, The First Hospital of Hebei Medical University, Shijiazhuang, China
| | - Feng Zhao
- Department of Interventional Vascular Surgery, Affiliated Hospital of Hebei University, Baoding, China
| | - Yunliang He
- Department of Interventional Vascular Surgery, Affiliated Hospital of Hebei University, Baoding, China
| | - Yajun E
- Department of Interventional Vascular Surgery, Affiliated Hospital of Hebei University, Baoding, China
| | - Shanfeng Li
- Department of Interventional Vascular Surgery, Affiliated Hospital of Hebei University, Baoding, China
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Circvrk1 downregulation attenuates brain microvascular endothelial cell damage induced by oxygen-glucose deprivation through modulating the miR-150-5p/MLLT1 axis. Exp Brain Res 2023; 241:781-791. [PMID: 36735043 DOI: 10.1007/s00221-023-06555-3] [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: 09/09/2022] [Accepted: 01/10/2023] [Indexed: 02/04/2023]
Abstract
The pivotal regulatory role of circular RNAs (circRNAs) in ischemic stroke (IS) has been expounded. The study aimed to probe the exact role and underlying mechanism of circVRK1 in oxygen-glucose deprivation (OGD)-induced human brain microvascular endothelial cells (HBMECs) injury. HBMECs challenged by OGD were used as in vitro models of IS. Quantitative real-time PCR was used to examine the levels of circVRK1, vaccinia-related kinase 1 (VRK1), miR-150-5p and MLLT1 mRNA. Cell viability, migration angiogenesis ability and death were evaluated by Cell counting kit-8 assay, transwell assay, wound-healing assay, tube formation assay and flow cytometry analysis. All the protein levels were monitored by western blot assay. Enzyme-linked immunosorbent assay was conducted for examining cell oxidative stress. Dual-luciferase reporter assay, RIP assay and RNA pull-down assay were performed to verify the combination between miR-150-5p and circVRK1 or MLLT1. CircVRK1 was upregulated in OGD-treated HBMECs. CircVRK1 knockdown alleviated OGD-caused effects on HBMECs migration, angiogenesis, death, inflammatory response and oxidative stress. Furthermore, circVRK1 could sponge miR-150-5p, and miR-150-5p silencing also mitigated the impact of circVRK1 deficiency on OGD-evoked injury. Besides, MLLT1 acted as a molecular target of miR-150-5p, and the protective influence of miR-150-5p on OGD-induced cell damage was overturned by MLLT1 introduction. CircVRK1 knockdown weakened OGD-evoked injury in HBMECs through modulating miR-150-5p/MLLT1 pathway, and this might supply new insights and probable targets for IS treatment.
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Cao Y, Liu J, Lu Q, Huang K, Yang B, Reilly J, Jiang N, Shu X, Shang L. An update on the functional roles of long non‑coding RNAs in ischemic injury (Review). Int J Mol Med 2022; 50:91. [PMID: 35593308 PMCID: PMC9170192 DOI: 10.3892/ijmm.2022.5147] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2022] [Accepted: 05/05/2022] [Indexed: 11/20/2022] Open
Abstract
Ischemic injuries result from ischemia and hypoxia in cells. Tissues and organs receive an insufficient supply of nutrients and accumulate metabolic waste, which leads to the development of inflammation, fibrosis and a series of other issues. Ischemic injuries in the brain, heart, kidneys, lungs and other organs can cause severe adverse effects. Acute renal ischemia induces acute renal failure, heart ischemia induces myocardial infarction and cerebral ischemia induces cerebrovascular accidents, leading to loss of movement, consciousness and possibly, life-threatening disabilities. Existing evidence suggests that long non-coding RNAs (lncRNAs) are regulatory sequences involved in transcription, post-transcription, epigenetic regulation and multiple physiological processes. lncRNAs have been shown to be differentially expressed following ischemic injury, with the severity of the ischemic injury being affected by the upregulation or downregulation of certain types of lncRNA. The present review article provides an extensive summary of the functional roles of lncRNAs in ischemic injury, with a focus on the brain, heart, kidneys and lungs. The present review mainly summarizes the functional roles of lncRNA MALAT1, lncRNA MEG3, lncRNA H19, lncRNA TUG1, lncRNA NEAT1, lncRNA AK139328 and lncRNA CAREL, among which lncRNA MALAT1, in particular, plays a crucial role in ischemic injury and is currently a hot research topic.
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Affiliation(s)
- Yanqun Cao
- School of Basic Medical Sciences, Shaoyang University, Shaoyang, Hunan 422000, P.R. China
| | - Jia Liu
- School of Basic Medical Sciences, Shaoyang University, Shaoyang, Hunan 422000, P.R. China
| | - Quzhe Lu
- School of Basic Medical Sciences, Shaoyang University, Shaoyang, Hunan 422000, P.R. China
| | - Kai Huang
- School of Basic Medical Sciences, Shaoyang University, Shaoyang, Hunan 422000, P.R. China
| | - Baolin Yang
- Department of Human Anatomy, School of Basic Medicine, Nanchang University, Nanchang, Jiangxi 330006, P.R. China
| | - James Reilly
- Department of Biological and Biomedical Sciences, Glasgow Caledonian University, Glasgow G4 0BA, UK
| | - Na Jiang
- Affiliated Eye Hospital of Nanchang University, Jiangxi Research Institute of Ophthalmology and Visual Science, Jiangxi Clinical Research Center for Ophthalmic Disease, Nanchang, Jiangxi 330006, P.R. China
| | - Xinhua Shu
- School of Basic Medical Sciences, Shaoyang University, Shaoyang, Hunan 422000, P.R. China
| | - Lei Shang
- Affiliated Eye Hospital of Nanchang University, Jiangxi Research Institute of Ophthalmology and Visual Science, Jiangxi Clinical Research Center for Ophthalmic Disease, Nanchang, Jiangxi 330006, P.R. China
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Li J, Wang N, Nie H, Wang S, Jiang T, Ma X, Liu W, Tian K. Long Non-coding RNA RMST Worsens Ischemic Stroke via MicroRNA-221-3p/PIK3R1/TGF-β Signaling Pathway. Mol Neurobiol 2022; 59:2808-2821. [PMID: 35217983 DOI: 10.1007/s12035-021-02632-2] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2021] [Accepted: 11/01/2021] [Indexed: 11/26/2022]
Abstract
Much efforts have been made to probe the mechanism underlying ischemic stroke (IS). This study was proposed to uncover the role of long non-coding RNA rhabdomyosarcoma 2 related transcript (RMST) in IS through microRNA-221-3p (miR-221-3p)/phosphoinositide-3-kinase regulatory subunit 1 (PIK3R1)/transforming growth factor-β (TGF-β) axis. Neurological behavioral function, pathological changes in brain tissue, oxidative stress, and inflammation responses in middle cerebral artery occlusion (MCAO) mice were tested. RMST, miR-221-3p, PIK3R1, and TGF-β signaling-related protein expression in brain tissues of MCAO mice were detected. RMST and PIK3R1 were elevated, miR-221-3p was downregulated, and TGF-β pathway was activated in mice after MCAO. Restored miR-221-3p or depleted RMST improved neurological behavioral functions, relieved pathological injury in brain tissue, and repressed oxidative stress and inflammation in mice after MCAO. Depleted PIK3R1 or restored miR-221-3p offsets the negative effects of overexpressed RMST on mice with MCAO. The present work highlights that RMST augments IS through reducing miR-221-3p-mediated regulation of PIK3R1 and activating TGF-β pathway.
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Affiliation(s)
- Jie Li
- Department of Neurology, The Second Affiliated Hospital of Harbin Medical University, Heilongjiang Province, Harbin, 150081, China
| | - Ning Wang
- Department of Neurology, The Second Affiliated Hospital of Harbin Medical University, Heilongjiang Province, Harbin, 150081, China
| | - Huan Nie
- Department of Neurology, The Second Affiliated Hospital of Harbin Medical University, Heilongjiang Province, Harbin, 150081, China
| | - Shan Wang
- Department of Neurology, The Second Affiliated Hospital of Harbin Medical University, Heilongjiang Province, Harbin, 150081, China
| | - Tongtong Jiang
- Department of Neurology, The Second Affiliated Hospital of Harbin Medical University, Heilongjiang Province, Harbin, 150081, China
| | - Xuehan Ma
- Department of Neurology, The Second Affiliated Hospital of Harbin Medical University, Heilongjiang Province, Harbin, 150081, China
| | - Wenjuan Liu
- Department of Neurology, The Second Affiliated Hospital of Harbin Medical University, Heilongjiang Province, Harbin, 150081, China.
| | - Kuo Tian
- Department of Neurology, The Second Affiliated Hospital of Harbin Medical University, Heilongjiang Province, Harbin, 150081, China.
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Chen C, Zhang S, Wei Y, Sun X. LncRNA RMST Regulates Neuronal Apoptosis and Inflammatory Response via Sponging miR-150-5p in Parkinson's Disease. Neuroimmunomodulation 2022; 29:55-62. [PMID: 34515176 DOI: 10.1159/000518212] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/06/2021] [Accepted: 06/24/2021] [Indexed: 11/19/2022] Open
Abstract
INTRODUCTION LncRNA rhabdomyosarcoma 2-associated transcript (RMST) serves as a key regulator in neural stem cell fate and is involved in the progression of different neurological diseases. In this research, the serum level and clinical value of RMST in Parkinson's disease (PD) patients were detected, and the underlying mechanism was explored. METHODS Ninety-nine PD patients and 93 healthy individuals were collected for clinical experiments. SH-SY5Y cells were treated with the dopaminergic neurotoxin 1-methyl-4-phenylpyridinium (MPP+) to establish PD cell models. qRT-PCR was used for the detection of mRNA levels. CCK-8 and flow cytometry were used to detect neuronal viability and apoptosis. The target relationship of RMST with miR-15a-5p was confirmed applying luciferase reporter assay. RESULTS RMST was present at high levels in both serum of PD patients and PD cell models. Serum RMST had a certain clinical value for the diagnosis of PD with the AUC of 0.892 at a cutoff value of 1.225. Serum RMST was positively associated with the levels of TNF-α (r = 0.421, p < 0.001) and IL-1β (r = 0.567, p < 0.001) in PD patients. Knockdown of RMST alleviated the apoptosis and inflammatory response of SH-SY5Y cells induced by MPP+. miR-150-5p was the target gene of RMST and less expressed in the clinical serum samples and PD cell models. CONCLUSION Serum RMST serves as a promising biomarker for the diagnosis of PD. RMST downregulation may regulate the occurrence and development of PD through inhibiting neuron cell apoptosis and the release of inflammatory cytokines via targeting miR-150-5p.
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Affiliation(s)
- Chuanlei Chen
- Department of Neurology First Ward, Yidu Central Hospital of Weifang, Weifang, China
| | - Shijuan Zhang
- Department of Critical Care Medicine, Yidu Central Hospital of Weifang, Weifang, China
| | - Yuhong Wei
- Department of Gastroenterology First Ward, Yidu Central Hospital of Weifang, Weifang, China
| | - Xibo Sun
- Department of Neurology First Ward, Yidu Central Hospital of Weifang, Weifang, China
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Liu M, Shan G, Jiang H, Zeng L, Zhao K, Li Y, Ashraf GM, Li Z, Liu R. Identification of miRNA and Their Regulatory Effects Induced by Total Flavonoids From Dracocephalum moldavica in the Treatment of Vascular Dementia. Front Pharmacol 2021; 12:796628. [PMID: 34938197 PMCID: PMC8685430 DOI: 10.3389/fphar.2021.796628] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2021] [Accepted: 11/17/2021] [Indexed: 11/25/2022] Open
Abstract
Vascular dementia (VaD) is a general term used to describe difficulties in memory, reasoning, judgment, and planning caused by a reduced blood flow to the brain and consequent brain damage, in which microRNAs (miRNAs) are involved. Dracocephalum moldavica L. (D. moldavica) is traditionally used in the treatment of cardiovascular diseases as well as VaD, but the biomolecular mechanisms underlying its therapeutic effect are obscure. In the present study, the molecular mechanisms involved in the treatment of VaD by the total flavonoids from Dracocephalum moldavica L. (TFDM) were explored by the identification of miRNA profiling using bioinformatics analysis and experimental verification. A total of 2,562 differentially expressed miRNAs (DEMs) and 3,522 differentially expressed genes (DEGs) were obtained from the GSE120584 and GSE122063 datasets, in which the gene functional enrichment and protein-protein interaction network of 93 core targets, originated from the intersection of the top DEM target genes and DEGs, were established for VaD gene profiling. One hundred and eighty-five targets interacting with 42 flavonoids in the TFDM were included in a compound-target network, subsequently found that they overlapped with potential targets for VaD. These 43 targets could be considered in the treatment of VaD by TFDM, and included CaMKII, MAPK, MAPT, PI3K, and KDR, closely associated with the vascular protective effect of TFDM, as well as anti-oxidative, anti-inflammatory, and anti-apoptotic properties. The subsequent analysis of the compound-target gene-miRNA network indicated that eight miRNAs that mediated 43 targets had a close interaction with TFDM, suggesting that the neuroprotective effects were principally due to kaempferol, apigenin, luteolin, and quercetin, which were mostly associated with the miR-3184-3p/ESR1, miR-6762-3p/CDK1, miR-6777-3p/ESRRA, and other related axes. Furthermore, the in vitro oxygen-glucose deprivation (OGD) model demonstrated that the dysregulation of miR-3184-3p and miR-6875-5p found by qRT-PCR was consistent with the changes in the bioinformatics analysis. TFDM and its active compounds involving tilianin, luteolin, and apigenin showed significant effects on the upregulation of miR-3184-3p and downregulation of miR-6875-5p in OGD-injured cells, in line with the improved cell viability. In conclusion, our findings revealed the underlying miRNA-target gene network and potential targets of TFDM in the treatment of VaD.
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Affiliation(s)
- Mimin Liu
- Institute of Medicinal Biotechnology, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Guangzhi Shan
- Institute of Medicinal Biotechnology, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Hailun Jiang
- Institute of Medicinal Biotechnology, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Li Zeng
- Institute of Medicinal Biotechnology, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Kaiyue Zhao
- Institute of Medicinal Biotechnology, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Yiran Li
- Institute of Medicinal Biotechnology, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Ghulam Md Ashraf
- Pre-Clinical Research Unit, King Fahd Medical Research Center, King Abdulaziz University, Jeddah, Saudi Arabia.,Department of Medical Laboratory Technology, Faculty of Applied Medical Sciences, King Abdulaziz University, Jeddah, Saudi Arabia
| | - Zhuorong Li
- Institute of Medicinal Biotechnology, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Rui Liu
- Institute of Medicinal Biotechnology, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
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Wang K, Lei L, Cao J, Qiao Y, Liang R, Duan J, Feng Z, Ding Y, Ma Y, Yang Z, Zhang E. Network pharmacology-based prediction of the active compounds and mechanism of Buyang Huanwu Decoction for ischemic stroke. Exp Ther Med 2021; 22:1050. [PMID: 34434264 PMCID: PMC8353622 DOI: 10.3892/etm.2021.10484] [Citation(s) in RCA: 21] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2020] [Accepted: 02/09/2021] [Indexed: 02/06/2023] Open
Abstract
Buyang Huanwu Decoction (BYHWD) is used to promote blood circulation and is widely used in Chinese clinical practice for the treatment and prevention of ischemic cerebral vascular diseases. However, the mechanism and active compounds of BYHWD used to treat ischemic stroke are not well understood. The current study aimed to identify the potential active components of BYHWD and explore its mechanism using network pharmacology and bioinformatics analyses. The compounds of BYHWD were obtained from public databases. Oral bioavailability and drug-likeness were screened using the absorption, distribution, metabolism and excretion (ADME) criteria. Components of BYHWD, alongside the candidate targets of each component and the known therapeutic targets of ischemic stroke were collected. A network of target gene compounds and cerebral ischemia compounds was established using network pharmacology data sources. The enrichment of key targets and pathways was analyzed using STRING and DAVID databases. Moreover, three of key targets [IL6, VEGFA and hypoxia-inducible-factor-1α (HIF-1α)] were verified using western blot analysis. Network analysis determined 102 compounds in seven herbal medicines that were subjected to ADME screening. A total of 42 compounds as well as 79 genes formed the principal pathways associated with ischemic stroke. The 16 key compounds identified were baicalein, beta-carotene, baicalin, kaempferol, luteolin, quercetin, hydroxysafflor yellow A, isorhamnetin, bifendate, formononetin, calycosin, astragaloside IV, stigmasterol, sitosterol, Z-ligustilide, and dihydrocapsaicin. The core genes in this network were IL6, TNF, VEGFA, HIF-1α, MAPK1, MAPK3, JUN, STAT3, IL1B and IL10. Furthermore, the TNF, IL17, apoptosis, PI3K-Akt, toll-like receptor, MAPK, NF-κB and HIF-1 signaling pathways were identified to be associated with ischemic stroke. Compared with the control group (no treatment), BYHWD significantly inhibited the expression of IL6 and increase the expression of HIF-1α and VEGFA. Network pharmacology analyses can help to reveal close interactions between multi-components and multi-targets and enhance understanding of the potential effects of BYHWD on ischemic stroke.
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Affiliation(s)
- Kai Wang
- Department of Pharmacy, Xijing Hospital, Fourth Military Medical University, Xi'an, Shaanxi 710032, P.R. China
- College of Pharmacy, Shaanxi University of Chinese Medicine, Xianyang, Shaanxi 712046, P.R. China
| | - Lu Lei
- Department of Pharmacy, Xijing Hospital, Fourth Military Medical University, Xi'an, Shaanxi 710032, P.R. China
| | - Jinyi Cao
- Department of Pharmacy, Xijing Hospital, Fourth Military Medical University, Xi'an, Shaanxi 710032, P.R. China
| | - Yi Qiao
- Department of Pharmacy, Xijing Hospital, Fourth Military Medical University, Xi'an, Shaanxi 710032, P.R. China
- Department of Pharmacology, Xi'an Jiaotong University School of Medicine, Xi'an, Shaanxi 710061, P.R. China
| | - Ruimin Liang
- College of Pharmacy, Shaanxi University of Chinese Medicine, Xianyang, Shaanxi 712046, P.R. China
| | - Jialin Duan
- Department of Pharmacy, Xijing Hospital, Fourth Military Medical University, Xi'an, Shaanxi 710032, P.R. China
| | - Zhijun Feng
- Department of Pharmacy, Xijing Hospital, Fourth Military Medical University, Xi'an, Shaanxi 710032, P.R. China
| | - Yi Ding
- Department of Pharmacy, Xijing Hospital, Fourth Military Medical University, Xi'an, Shaanxi 710032, P.R. China
| | - Yang Ma
- Department of Pharmacy, Xijing Hospital, Fourth Military Medical University, Xi'an, Shaanxi 710032, P.R. China
| | - Zhifu Yang
- Department of Pharmacy, Xijing Hospital, Fourth Military Medical University, Xi'an, Shaanxi 710032, P.R. China
| | - Enhu Zhang
- College of Pharmacy, Shaanxi University of Chinese Medicine, Xianyang, Shaanxi 712046, P.R. China
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Ma X, Wang Y, Yin H, Hua L, Zhang X, Xiao J, Yuan Q, Wang S, Liu Y, Zhang S, Wang Y. Down-regulated long non-coding RNA RMST ameliorates dopaminergic neuron damage in Parkinson's disease rats via regulation of TLR/NF-κB signaling pathway. Brain Res Bull 2021; 174:22-30. [PMID: 33933526 DOI: 10.1016/j.brainresbull.2021.04.026] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2020] [Revised: 02/04/2021] [Accepted: 04/26/2021] [Indexed: 12/22/2022]
Abstract
OBJECTIVE Current treatment and prognosis of Parkinson's disease (PD) are not ideal. This study explored the mechanism of long non-coding RNA (lncRNA) rhabdomyosarcoma 2-associated transcript (RMST) in dopaminergic (DA) neuron damage in PD rats. METHODS PD rats were modeled and injected with RMST silence or overexpression vectors to figure out its roles in oxidative stress, the apoptosis of DA neurons in brain substantia nigra (SN), and neurobehavioral activities of PD rats. Tyrosine hydroxylase (TH), synaptophysin (SYN), glial fibrillary acidic protein (GFAP) and ionized calcium-binding adaptor molecule (Iba-1) in SN were detected. RMST and Toll-like receptor (TLR)/nuclear factor kappa B (NF-κB) pathway-related factors were detected. RESULTS RMST expression in brain SN of rats, TLR2, TLR4 expression in neurons and NF-κB expression in cell nucleus were increased. Silenced RMST improved the neurobehavioral activities, depressed oxidative stress and neuronal apoptosis, increased TH and SYN expression, and reduced the activation degree of glial cells in SN and the inflammatory response via reducing GFAP and Iba-1. Moreover, reduced RMST reduced TLR2 and TLR4 expression in neurons and NF-κB expression in cell nucleus in PD rats. CONCLUSION Inhibited RMST attenuates DA neuron damage in PD rats, which may be implicated with TLR/NF-κB signaling pathway.
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Affiliation(s)
- Xuelian Ma
- Neurology Department, The 960th Hospital of the PLA, Zibo 255300, Shandong, China
| | - Yutong Wang
- Qilu Medical University, Zibo 255300, Shandong, China
| | - Honglei Yin
- Neurology Department, The 960th Hospital of the PLA, Zibo 255300, Shandong, China
| | - Linlin Hua
- Neurology Department, The Second Affiliated Hospital of Zhengzhou University, Zhengzhou 450014, Henan, China
| | - Xiaolei Zhang
- Neurology Department, The 960th Hospital of the PLA, Zibo 255300, Shandong, China
| | - Jianhao Xiao
- Neurology Department, The Second Affiliated Hospital of Zhengzhou University, Zhengzhou 450014, Henan, China
| | - Qian Yuan
- Neurology Department, The Second Affiliated Hospital of Zhengzhou University, Zhengzhou 450014, Henan, China
| | - Shanshan Wang
- Neurology Department, The 960th Hospital of the PLA, Zibo 255300, Shandong, China
| | - Yajun Liu
- Neurology Department, The 960th Hospital of the PLA, Zibo 255300, Shandong, China
| | - Simiao Zhang
- Neurology Department, The Second Affiliated Hospital of Zhengzhou University, Zhengzhou 450014, Henan, China
| | - Yunliang Wang
- Neurology Department, The 960th Hospital of the PLA, Zibo 255300, Shandong, China; Neurology Department, The Second Affiliated Hospital of Zhengzhou University, Zhengzhou 450014, Henan, China.
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Yin D, Xu F, Lu M, Li X. Long non-coding RNA RMST promotes oxygen-glucose deprivation-induced injury in brain microvascular endothelial cells by regulating miR-204-5p/VCAM1 axis. Life Sci 2021; 284:119244. [PMID: 33607153 DOI: 10.1016/j.lfs.2021.119244] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/28/2020] [Revised: 02/08/2021] [Accepted: 02/09/2021] [Indexed: 02/06/2023]
Abstract
AIMS Many long non-coding RNAs (lncRNAs) have been suggested to play critical roles in the pathogenesis of ischemic stroke, including lncRNA rhabdomyosarcoma 2-associated transcript (RMST). We aimed to elucidate the role and molecular mechanism of RMST in ischemic stroke. MATERIALS AND METHODS The in vitro ischemic stroke model was established by treating brain microvascular endothelial cells with oxygen-glucose deprivation (OGD). The expression of RMST, miR-204-5p and vascular cell adhesion molecule 1 (VCAM1) were determined by quantitative real-time polymerase chain reaction (qRT-PCR). The interaction between miR-204-5p and RMST or VCAM1 was confirmed using dual-luciferase reporter and RNA immunoprecipitation (RIP) assays. Cell viability, migration and apoptosis were assessed by Cell Counting Kit-8 (CCK-8), wound healing assay and flow cytometry, respectively. Lactic dehydrogenase (LDH) leakage rate was determined by LDH activity assay kit. The protein level of VCAM1 was analyzed by western blot (WB) assay. KEY FINDINGS RMST was upregulated in OGD-treated HBMEC and bEnd.3 cells. MiR-204-5p was a direct target of RMST, and miR-204-5p inhibition abated the inhibitory effect of RMST knockdown on OGD-induced injury via inhibiting cell viability and migration and promoting apoptosis in HBMEC and bEnd.3 cells. Moreover, VCAM1 was identified as a direct target of miR-204-5p, and VCAM1 alleviated the effect of miR-204-5p on reduction of OGD-induced injury in HBMEC and bEnd.3 cells. In addition, RMST regulated VCAM1 expression via sponging miR-204-5p. SIGNIFICANCE RMST knockdown attenuated OGD-induced injury of HBMEC and bEnd.3 cells via regulating miR-204-5p/VCAM1 axis, indicating a possible therapeutic strategy for future ischemic stroke therapy.
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Affiliation(s)
- Dongliang Yin
- Department of Neurology, The Third Hospital of Jinan, Jinan 250000, China
| | - Furong Xu
- Department of Neurology, Chengdu Seventh People's Hospital, Chengdu 610000, China
| | - Ming Lu
- Department of Neurology, The Third Hospital of Jinan, Jinan 250000, China
| | - Xuewen Li
- Department of Neurosurgery, Dingxi People's Hospital, Dingxi 743000, China.
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Gan L, Liao S, Xing Y, Deng S. The Regulatory Functions of lncRNAs on Angiogenesis Following Ischemic Stroke. Front Mol Neurosci 2021; 13:613976. [PMID: 33613191 PMCID: PMC7890233 DOI: 10.3389/fnmol.2020.613976] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2020] [Accepted: 12/28/2020] [Indexed: 12/14/2022] Open
Abstract
Ischemic stroke is one of the leading causes of global mortality and disability. It is a multi-factorial disease involving multiple factors, and gene dysregulation is considered as the major molecular mechanisms underlying disease progression. Angiogenesis can promote collateral circulation, which helps the restoration of blood supply in the ischemic area and reduces ischemic necrosis following ischemic injury. Aberrant expression of long non-coding RNAs (lncRNAs) in ischemic stroke is associated with various biological functions of endothelial cells and serves essential roles on the angiogenesis of ischemic stroke. The key roles of lncRNAs on angiogenesis suggest their potential as novel therapeutic targets for future diagnosis and treatment. This review elucidates the detailed regulatory functions of lncRNAs on angiogenesis following ischemic stroke through numerous mechanisms, such as interaction with target microRNAs, downstream signaling pathways and target molecules.
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Affiliation(s)
- Li Gan
- Laboratory of Forensic and Biomedical Information, Chongqing Medical University, Chongqing, China
| | - Shengtao Liao
- Department of Gastroenterology, Second Affiliated Hospital of Chongqing Medical University, Chongqing, China
| | - Yu Xing
- Laboratory of Forensic and Biomedical Information, Chongqing Medical University, Chongqing, China
| | - Shixiong Deng
- Laboratory of Forensic and Biomedical Information, Chongqing Medical University, Chongqing, China
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