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Wang Q, Qin B, Yu H, Hu Y, Yu H, Zhong J, Liu J, Yao C, Zeng J, Fan J, Diao L. Advances in Circular RNA in the Pathogenesis of Epilepsy. Neuroscience 2024; 551:246-253. [PMID: 38843987 DOI: 10.1016/j.neuroscience.2024.05.036] [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: 04/07/2024] [Revised: 05/23/2024] [Accepted: 05/27/2024] [Indexed: 06/15/2024]
Abstract
Recent studies evidenced the involvement of circular RNA (circRNA) in neuroinflammation, apoptosis, and synaptic remodeling suggesting an important role for circRNA in the occurrence and development of epilepsy. This review provides an overview of circRNAs considered to be playing regulatory roles in the process of epilepsy and to be involved in multiple biological epilepsy-related processes, such as hippocampal sclerosis, inflammatory response, cell apoptosis, synaptic remodeling, and cell proliferation and differentiation. This review covers the current research status of differential expression of circRNA-mediated seizures, m6A methylation, demethylation-mediated seizures in post transcriptional circRNA modification, as well as the mechanisms of m5C- and m7G-modified circRNA. In summary, this article reviews the research progress on the relationship between circRNA in non-coding RNA and epilepsy.
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Affiliation(s)
- Qin Wang
- Graduate School of First Clinical Medicine College, Guangxi University of Chinese Medicine, 13 Wuhe Avenue, Qingxiu District, Nanning, Guangxi 530001, China; Department of Neurology, The First Affiliated Hospital of Guangxi University of Chinese Medicine, 89-9 Dongge Road, Qingxiu District, Nanning, Guangxi 530023, China
| | - Baijun Qin
- Department of Gastroenterology, Chongqing Hospital of Traditional Chinese Medicine, 6 Seventh Branch Road, Panxi, Jiangbei District, Chongqing 400021, China
| | - Haichun Yu
- Guangxi Technological College of Machinery and Electricity, Nanning, Guangxi 30007, China
| | - Yueqiang Hu
- Department of Neurology, The First Affiliated Hospital of Guangxi University of Chinese Medicine, 89-9 Dongge Road, Qingxiu District, Nanning, Guangxi 530023, China
| | - Han Yu
- Harbin Medical University, 157 Baojian Road, Nangang District, Harbin, Heilongjiang 150081, China
| | - Jie Zhong
- Department of Neurology, The First Affiliated Hospital of Guangxi University of Chinese Medicine, 89-9 Dongge Road, Qingxiu District, Nanning, Guangxi 530023, China
| | - Jinwen Liu
- Graduate School of First Clinical Medicine College, Guangxi University of Chinese Medicine, 13 Wuhe Avenue, Qingxiu District, Nanning, Guangxi 530001, China; Department of Neurology, The First Affiliated Hospital of Guangxi University of Chinese Medicine, 89-9 Dongge Road, Qingxiu District, Nanning, Guangxi 530023, China
| | - Chunyuan Yao
- Graduate School of First Clinical Medicine College, Guangxi University of Chinese Medicine, 13 Wuhe Avenue, Qingxiu District, Nanning, Guangxi 530001, China; Department of Neurology, The First Affiliated Hospital of Guangxi University of Chinese Medicine, 89-9 Dongge Road, Qingxiu District, Nanning, Guangxi 530023, China
| | - Jiawei Zeng
- Graduate School of First Clinical Medicine College, Guangxi University of Chinese Medicine, 13 Wuhe Avenue, Qingxiu District, Nanning, Guangxi 530001, China; Department of Neurology, The First Affiliated Hospital of Guangxi University of Chinese Medicine, 89-9 Dongge Road, Qingxiu District, Nanning, Guangxi 530023, China
| | - Jingjing Fan
- Graduate School of First Clinical Medicine College, Guangxi University of Chinese Medicine, 13 Wuhe Avenue, Qingxiu District, Nanning, Guangxi 530001, China; Department of Neurology, The First Affiliated Hospital of Guangxi University of Chinese Medicine, 89-9 Dongge Road, Qingxiu District, Nanning, Guangxi 530023, China
| | - Limei Diao
- Graduate School of First Clinical Medicine College, Guangxi University of Chinese Medicine, 13 Wuhe Avenue, Qingxiu District, Nanning, Guangxi 530001, China; Department of Neurology, The First Affiliated Hospital of Guangxi University of Chinese Medicine, 89-9 Dongge Road, Qingxiu District, Nanning, Guangxi 530023, China.
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Meccariello R, Bellenchi GC, Pulcrano S, D’Addario SL, Tafuri D, Mercuri NB, Guatteo E. Neuronal dysfunction and gene modulation by non-coding RNA in Parkinson's disease and synucleinopathies. Front Cell Neurosci 2024; 17:1328269. [PMID: 38249528 PMCID: PMC10796818 DOI: 10.3389/fncel.2023.1328269] [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: 10/26/2023] [Accepted: 12/07/2023] [Indexed: 01/23/2024] Open
Abstract
Over the last few decades, emerging evidence suggests that non-coding RNAs (ncRNAs) including long-non-coding RNA (lncRNA), microRNA (miRNA) and circular-RNA (circRNA) contribute to the molecular events underlying progressive neuronal degeneration, and a plethora of ncRNAs have been identified significantly misregulated in many neurodegenerative diseases, including Parkinson's disease and synucleinopathy. Although a direct link between neuropathology and causative candidates has not been clearly established in many cases, the contribution of ncRNAs to the molecular processes leading to cellular dysfunction observed in neurodegenerative diseases has been addressed, suggesting that they may play a role in the pathophysiology of these diseases. Aim of the present Review is to overview and discuss recent literature focused on the role of RNA-based mechanisms involved in different aspects of neuronal pathology in Parkinson's disease and synucleinopathy models.
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Affiliation(s)
- Rosaria Meccariello
- Department of Medical and Movement Sciences and Wellness, University of Naples Parthenope, Naples, Italy
| | - Gian Carlo Bellenchi
- Institute of Genetics and Biophysics, CNR, Naples, Italy
- Experimental Neurology Laboratory, Santa Lucia Foundation IRCCS, Rome, Italy
| | | | - Sebastian Luca D’Addario
- Experimental Neurology Laboratory, Santa Lucia Foundation IRCCS, Rome, Italy
- Computational and Translational Neuroscience Laboratory, Institute of Cognitive Sciences and Technologies, CNR, Rome, Italy
- Aligning Science Across Parkinson’s (ASAP) Collaborative Research Network, Chevy Chase, MD, United States
| | - Domenico Tafuri
- Department of Medical and Movement Sciences and Wellness, University of Naples Parthenope, Naples, Italy
| | - Nicola B. Mercuri
- Experimental Neurology Laboratory, Santa Lucia Foundation IRCCS, Rome, Italy
- Aligning Science Across Parkinson’s (ASAP) Collaborative Research Network, Chevy Chase, MD, United States
- Department of Systems Medicine, University of Rome Tor Vergata, Rome, Italy
| | - Ezia Guatteo
- Department of Medical and Movement Sciences and Wellness, University of Naples Parthenope, Naples, Italy
- Experimental Neurology Laboratory, Santa Lucia Foundation IRCCS, Rome, Italy
- Aligning Science Across Parkinson’s (ASAP) Collaborative Research Network, Chevy Chase, MD, United States
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Dorostgou Z, Yadegar N, Dorostgou Z, Khorvash F, Vakili O. Novel insights into the role of circular RNAs in Parkinson disease: An emerging renaissance in the management of neurodegenerative diseases. J Neurosci Res 2022; 100:1775-1790. [PMID: 35642104 DOI: 10.1002/jnr.25094] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2021] [Revised: 05/11/2022] [Accepted: 05/15/2022] [Indexed: 11/06/2022]
Abstract
Parkinson's disease (PD), as a debilitating neurodegenerative disease, particularly affects the elderly population, and is clinically identified by resting tremor, rigidity, and bradykinesia. Pathophysiologically, PD is characterized by an early loss of dopaminergic neurons in the Substantia nigra pars compacta, accompanied by the extensive aggregation of alpha-synuclein (α-Syn) in the form of Lewy bodies. The onset of PD has been reported to be influenced by multiple biological molecules. In this context, circular RNAs (circRNAs), as tissue-specific noncoding RNAs with closed structures, have been recently demonstrated to involve in a set of PD's pathogenic processes. These RNA molecules can either up- or downregulate the expression of α-Syn, as well as moderating its accumulation through different regulatory mechanisms, in which targeting microRNAs (miRNAs) is considered the most common pathway. Since circRNAs have prominent structural and biological characteristics, they could also be considered as promising candidates for PD diagnosis and treatment. Unfortunately, PD has become a global health concern, and a large number of its pathogenic processes are still unclear; thus, it is crucial to elucidate the ambiguous aspects of PD pathophysiology to improve the efficiency of diagnostic and therapeutic strategies. In line with this fact, the current review aims to highlight the interplay between circRNAs and PD pathogenesis, and then discusses the diagnostic and therapeutic potential of circRNAs in PD progression. This study will thus be the first of its kind reviewing the relationship between circRNAs and PD.
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Affiliation(s)
- Zahra Dorostgou
- Department of Biochemistry, Neyshabur Branch, Islamic Azad University, Neyshabur, Iran
| | - Negar Yadegar
- Department of Medical Laboratory Sciences, School of Paramedical Sciences, Isfahan University of Medical Sciences, Isfahan, Iran
| | - Zeynab Dorostgou
- Department of Biology, Kavian Institute of Higher Education, Mashhad, Iran
| | - Fariborz Khorvash
- Department of Neurology, School of Medicine, Isfahan University of Medical Sciences, Isfahan, Iran.,Isfahan Neurosciences Research Center, Al-zahra Hospital, Isfahan University of Medical Sciences, Isfahan, Iran
| | - Omid Vakili
- Department of Clinical Biochemistry, School of Pharmacy and Pharmaceutical Sciences, Isfahan University of Medical Sciences, Isfahan, Iran
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Sun X, Dai M, Liu X, Wang H, Wang C, Fan X, Fang W. Hsa_circ_0090002 regulates miR-186-5p/HECTD1 axis to mediate brain microvascular endothelial cell dysfunction. Brain Res Bull 2021; 178:97-107. [PMID: 34801649 DOI: 10.1016/j.brainresbull.2021.11.007] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2021] [Revised: 10/18/2021] [Accepted: 11/14/2021] [Indexed: 12/23/2022]
Abstract
BACKGROUND Ischemic injury is a common nervous disease associated with the dysfunction of human brain microvascular endothelial cells (HBMECs). Circular RNAs (circRNAs) have key roles in ischemic injury. This research aims to investigate the role and mechanism of circ_0090002 in ischemic injury. METHODS HBMECs were stimulated by oxygen-glucose deprivation (OGD). Circ_0090002, microRNA-186-5p (miR-186-5p), and homologous to the E6-AP Carboxyl Terminus domain E3 ubiquitin ligase 1 (HECTD1) levels were detected by quantitative reverse transcription polymerase chain reaction or Western blotting. Cell viability and migration were determined using Cell Counting Kit-8 (CCK-8) assay and wound healing assay. Flow cytometry and caspase-3 activity assay were used for apoptosis analysis. The oxidative injury and cell toxicity were assessed by reactive oxygen species (ROS) and lactic dehydrogenase (LDH) release assay kits, respectively. The interaction was investigated by dual-luciferase reporter, RNA immunoprecipitation (RIP) and RNA pull-down assays. In vivo assay was performed in rats. RESULTS Circ_0090002 expression was reduced in OGD-stimulated HBMECs. Circ_0090002 overexpression attenuated OGD-induced reduction of cell viability and migration but elevation of apoptosis, oxidative stress and cell toxicity. Circ_0090002 sponged miR-186-5p and miR-186-5p overexpression reversed the protective role of circ_0090002 against the OGD-induced cell injury. MiR-186-5p targeted HECTD1miR-186-5p knockdown mitigated cell damages in by increasing HECTD1 level in OGD-treated HBMECs. Circ_0090002 could upregulate the HECTD1 expression via regulating miR-186-5p. Circ_0090002 inhibited infarct volume of brain in rats. CONCLUSION These results demonstrated that circ_0090002 mitigated OGD-induced cell dysfunction in HBMECs by targeting the miR-186-5p/HECTD1 axis.
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Affiliation(s)
- Xiaoxia Sun
- Department of Organ Transplantation, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan 250021, China
| | - Mingying Dai
- Department of Critical Care Medicine, the Affiliated Hospital of Qingdao University, Qingdao 266003, China
| | - Xin Liu
- Department of Critical Care Medicine, the Affiliated Hospital of Qingdao University, Qingdao 266003, China
| | - Huimin Wang
- Department of Critical Care Medicine, the Affiliated Hospital of Qingdao University, Qingdao 266003, China
| | - Chuanlei Wang
- Department of Critical Care Medicine, the Affiliated Hospital of Qingdao University, Qingdao 266003, China
| | - Xinyi Fan
- Department of Critical Care Medicine, the Affiliated Hospital of Qingdao University, Qingdao 266003, China
| | - Wei Fang
- Department of Critical Care Medicine, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan 250021, China.
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Zhou D, Lin X, Wang P, Yang Y, Zheng J, Zhou D. Circular RNA circ_0001162 promotes cell proliferation and invasion of glioma via the miR-936/ERBB4 axis. Bioengineered 2021; 12:2106-2118. [PMID: 34057019 PMCID: PMC8806513 DOI: 10.1080/21655979.2021.1932221] [Citation(s) in RCA: 29] [Impact Index Per Article: 9.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
Abstract
The biological modulatory roles of many circular RNAs (circRNAs) have been validated in glioma. The current study was designed to research the functional mechanism of circ_0001162 in glioma progression. The quantitative real-time polymerase chain reaction (qRT-PCR) was used for assaying the levels of circ_0001162 and microRNA-936 (miR-936). Cell proliferation and colony formation abilities were evaluated via 3-(4, 5-dimethylthiazol-2-y1)-2, 5-diphenyl tetrazolium bromide (MTT) and colony formation assay, respectively. Transwell assay was applied to assess cell migration and invasion. The impact of circ_0001162 on glioma growth in vivo was performed using xenograft tumor assay. The target binding was affirmed via the dual-luciferase reporter and RNA pull-down assays. All protein expression levels were examined via Western blot. Circ_0001162 was an overexpressed circRNA in glioma. Circ_0001162 promoted glioma cell proliferation, colony formation, migration and invasion in vitro. Tumorigenesis of glioma in vivo was also enhanced by circ_0001162. Circ_0001162 could directly target miR-936 and the biological function of circ_0001162 in glioma was related to the inhibition of miR-936. ErbB2 receptor tyrosine kinase 4 (ERBB4) was a direct target of miR-936. Additionally, miR-936 inhibited the glioma development via targeting ERBB4. The miR-936/ERBB4 axis was responsible for the oncogenic role of circ_0001162 in glioma. The effects of circ_0001162 on glioma cells were also associated with the positive regulation of ERBB4. These results indicated that circ_0001162 contributed to the glioma progression via regulating the miR-936/ERBB4 axis, which laid a foundation for the pathomechanism and molecular treatment of glioma.
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Affiliation(s)
- Dexiang Zhou
- Department of Neurosurgery, Guangdong Provincial People's Hospital (Guangdong Academy of Medical Sciences), Guangdong, China
| | - Xiaofeng Lin
- Department of Neurosurgery, Guangdong Provincial People's Hospital (Guangdong Academy of Medical Sciences), Guangdong, China
| | - Peng Wang
- Department of Neurosurgery, Guangdong Provincial People's Hospital (Guangdong Academy of Medical Sciences), Guangdong, China
| | - Yong Yang
- Department of Neurosurgery, Guangdong Provincial People's Hospital (Guangdong Academy of Medical Sciences), Guangdong, China
| | - Jiantao Zheng
- Department of Neurosurgery, Guangdong Provincial People's Hospital (Guangdong Academy of Medical Sciences), Guangdong, China
| | - Dong Zhou
- Department of Neurosurgery, Guangdong Provincial People's Hospital (Guangdong Academy of Medical Sciences), Guangdong, China
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Wang Q, Wang F, Fu F, Liu J, Sun W, Chen Y. Diagnostic and prognostic value of serum miR-9-5p and miR-128-3p levels in early-stage acute ischemic stroke. Clinics (Sao Paulo) 2021; 76:e2958. [PMID: 34730612 PMCID: PMC8527554 DOI: 10.6061/clinics/2021/e2958] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/11/2021] [Accepted: 08/16/2021] [Indexed: 11/18/2022] Open
Abstract
OBJECTIVES To investigate the clinical utility of serum microRNA levels (miR-9-5p and miR-128-3p) in the diagnosis and prognosis of early-stage acute ischemic stroke (AIS). METHODS We compared the differences in serum miR-9-5p and miR-128-3p levels between patients with AIS and healthy individuals (controls). The serum levels of miR-9-5p and miR-128-3p were quantified using quantitative real-time PCR, and the association of each miRNA with AIS was determined using receiver operator characteristic curve analysis. The predictive value of these indices in the diagnosis of early-stage AIS was evaluated in conjunction with that of computed tomography findings and neuron-specific enolase levels. The prognosis of patients with AIS was evaluated three months after their discharge from hospital using the modified Rankin scale, which classifies the prognosis as either favorable or poor. Logistic regression analysis was used to analyze the correlation between miR-9-5p and miR-128-3p levels and patient prognosis. RESULTS The serum levels of miR-9-5p and miR-128-3p were upregulated in patients with AIS relative to those in healthy individuals. A pronounced correlation was identified between serum miR-9-5p and miR-128-3p levels and patient prognosis, with high levels of both miRNAs being associated with poor patient outcomes. CONCLUSION Assessment of serum miR-9-5p and miR-128-3p levels is important for the early diagnosis and prognosis of AIS.
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Affiliation(s)
- Qi Wang
- Neurorehabilitation Center, Beijing Rehabilitation Hospital of Capital Medical University, Beijing 100144, China
| | - Fei Wang
- Department of Encephalopathy, Binzhou Hospital of Traditional Chinese Medicine, Binzhou, Shandong 256600, China
| | - Fengwei Fu
- The Fifth Department of Internal Medicine, Gucheng County Hospital of Hebei Province, Hengshui, Hebei 253800, China
| | - Jinlin Liu
- Laboratory Department, Gucheng County Hospital of Hebei Province, Hengshui, Hebei 253800, China
| | - Weilu Sun
- Department of Neurology, Gaoqing County People's Hospital, Zibo, Shandong 256300, China
| | - Yongqing Chen
- Department of Neurology, Yantai Municipal Laiyang Central Hospital, Yantai, Shandong 265200, China
- Corresponding author. E-mail:
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Wang Q, Liu X, Zhao J, Zhu R. Circular RNAs: novel diagnostic and therapeutic targets for ischemic stroke. Expert Rev Mol Diagn 2020; 20:1039-1049. [PMID: 32954841 DOI: 10.1080/14737159.2020.1826313] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Affiliation(s)
- Qianwen Wang
- Department of Neurology, The First Affiliated Hospital of China Medical University, Shenyang, China
| | - Xu Liu
- Department of Neurology, The First Affiliated Hospital of China Medical University, Shenyang, China
| | - Jingjing Zhao
- Department of Neurology, The First Affiliated Hospital of China Medical University, Shenyang, China
| | - Ruixia Zhu
- Department of Neurology, The First Affiliated Hospital of China Medical University, Shenyang, China
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Wang B, Li B, Si T. Knockdown of circ0082374 inhibits cell viability, migration, invasion and glycolysis in glioma cells by miR-326/SIRT1. Brain Res 2020; 1748:147108. [PMID: 32896523 DOI: 10.1016/j.brainres.2020.147108] [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] [Received: 05/11/2020] [Revised: 08/05/2020] [Accepted: 08/31/2020] [Indexed: 12/17/2022]
Abstract
Circular RNAs (circRNAs) play important roles in the development and treatment of glioma. However, the role and mechanism of circRNA carboxypeptidase A4 (circ0082374) in glioma are largely unknown. Forty-two glioma patients and 28 normal patients were recruited. Glioma cell lines A172 and U251 were used for functional assays. The expression levels of circ0082374, microRNA-326 (miR-326) and sirtuin 1 (SIRT1) were examined via quantitative real-time polymerase chain reaction or western blot. Cell viability, migration, invasion and glycolysis were measured via cell counting kit-8, trans-well, oxygen consumption rate and western blot, respectively. The target correlation of circ0082374/miR-326 or miR-326/SIRT1 was explored via dual-luciferase reporter, RNA immunoprecipitation and pull-down assays. The role of circ0082374 in vivo was investigated via xenograft model. We found circ0082374 expression was elevated in glioma tissues and cells. Knockdown of circ0082374 suppressed the viability, migration, invasion and glycolysis in glioma cells. miR-326 was a target of circ0082374 and miR-326 knockdown attenuated the inhibitive role of circ0082374 silence in glioma progression. SIRT1 was a target of miR-326 and circ0082374 could promote SIRT1 expression by sponging miR-326. Silence of SIRT1 reversed the promoting effect of circ0082374 on glioma progression. Knockdown of circ0082374 reduced xenograft tumor growth by miR-326/SIRT1 in vivo. Collectively, silence of circ0082374 repressed the viability, migration, invasion and glycolysis in glioma cells by regulating miR-326 and SIRT1 in a ceRNA mechanism, providing a new mechanism for the pathogenesis of glioma.
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Affiliation(s)
- Bin Wang
- Department of Interventional Oncology, Tianjin Huanhu Hospital (Tianjin Key Laboratory of Cerebral Vascular and Neurodegenerative Diseases, Department of Interventional Therapy, Tianjin Medical University Cancer Institute and Hospital, National Clinical Research Center for Cancer, Key Laboratory of Cancer Prevention and Therapy, Tianjin's Clinical Research Center for Cancer), Tianjin 300350, China.
| | - Bing Li
- Department of Neurosurgery, Tianjin Huanhu Hospital (Tianjin Key Laboratory of Cerebral Vascular and Neurodegenerative Diseases), Tianjin 300350, China
| | - Tongguo Si
- Department of Interventional Therapy, Tianjin Medical University Cancer Institute and Hospital (National Clinical Research Center of Cancer, Key Laboratory of Cancer Prevention and Therapy of Tianjin, Tianjin's Clinical Research Center for Cancer), Huanhu West Road, Hexi District, Tianjin 300060, China
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Zou RC, Li LL, Yuan HL. Current Status of Research on the Role of Circular RNAs in Hepatocellular Carcinoma and Clinical Implications. Med Sci Monit 2020; 26:e923832. [PMID: 32779638 PMCID: PMC7441742 DOI: 10.12659/msm.923832] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2020] [Accepted: 06/03/2020] [Indexed: 12/24/2022] Open
Abstract
The latest statistics show that rates of morbidity and mortality for hepatocellular carcinoma are gradually increasing over time. Accumulating evidence indicates that circular RNAs (circRNAs) participate in the regulation of gene transcription and translation and exert a crucial role in endogenous RNA network. circRNAs are implicated in the pathogenesis of numerous tumors including hepatocellular carcinoma (HCC), gastric carcinoma and bladder cancer. Of note, the effect of circRNAs in HCC has drawn increasing public attention. Previous studies revealed that the function of circRNAs mainly consists of sponges of miRNA and RNA-binding proteins, alternative splicing of pre-mRNAs, transcriptional and translational regulators, and potential to encode proteins. In addition, recent research data indicate that the expression level of circRNAs is closely correlated with metastasis, invasion, and occurrence of HCC in patients. These findings imply that circRNAs may be useful as biomarkers for diagnosis and prediction of prognosis of HCC. In this review, we have systemically summarized current viewpoints regarding the role of circRNAs expression in HCC to provide an important reference illustrating the underlying mechanism of HCC.
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Affiliation(s)
- Ren-Chao Zou
- Department of Hepatobiliary Surgery, The Second Affiliated Hospital of Kunming Medical University, Kunming, Yunnan, P.R. China
| | - Ling-Lin Li
- Department of Nephrology, The First Affiliated Hospital of Kunming Medical University, Kunming, Yunnan, P.R. China
- Department of Nephrology, The Third People’s Hospital of Yunnan Province, Kunming, Yunnan, P.R. China
| | - Hong-Ling Yuan
- Department of Nephrology, The First Affiliated Hospital of Kunming Medical University, Kunming, Yunnan, P.R. China
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Wang Y, Jiang Z, Yu M, Yang G. Roles of circular RNAs in regulating the self-renewal and differentiation of adult stem cells. Differentiation 2020; 113:10-18. [DOI: 10.1016/j.diff.2020.03.001] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2019] [Revised: 02/26/2020] [Accepted: 03/03/2020] [Indexed: 02/06/2023]
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Ding C, Wu Z, You H, Ge H, Zheng S, Lin Y, Wu X, Lin Z, Kang D. CircNFIX promotes progression of glioma through regulating miR-378e/RPN2 axis. JOURNAL OF EXPERIMENTAL & CLINICAL CANCER RESEARCH : CR 2019; 38:506. [PMID: 31888753 PMCID: PMC6936104 DOI: 10.1186/s13046-019-1483-6] [Citation(s) in RCA: 51] [Impact Index Per Article: 10.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/23/2019] [Accepted: 11/15/2019] [Indexed: 12/12/2022]
Abstract
Background Circular RNA nuclear factor I X (circNFIX) has been reported to play an important role in glioma progression. However, the mechanism by which circNFIX participates in glioma progression remains poorly understood. Methods GERIA online were used to analyze the abnormally expressed genes in glioma tissues. The expression levels of circNFIX, microRNA (miR)-378e and Ribophorin-II (RPN2) were measured by quantitative real-time polymerase chain reaction or western blot. Cell cycle distribution, apoptosis, glycolysis, migration and invasion were determined by flow cytometry, special kit and trans-well assays, respectively. The target association between miR-378e and circNFIX or RPN2 was confirmed by luciferase reporter assay, RNA immunoprecipitation and pull-down. Xenograft model was established to investigate the role of circNFIX in vivo. Results The expression of circNFIX was enhanced in glioma tissues and cells compared with matched controls and high expression of circNFIX indicated poor outcomes of patients. Knockdown of circNFIX led to arrest of cell cycle, inhibition of glycolysis, migration and invasion and promotion of apoptosis in glioma cells. circNFIX was a sponge of miR-378e. miR-378e overexpression suppressed cell cycle process, glycolysis, migration and invasion but promoted apoptosis. miR-378e silence abated the suppressive role of circNFIX knockdown in glioma progression. RPN2 as a target of miR-378e was positively regulated via circNFIX by competitively sponging miR-378e. Silencing circNFIX decreased glioma xenograft tumor growth by regulating miR-378e/RPN2 axis. Conclusion Knockdown of circNFIX inhibits progression of glioma in vitro and in vivo by increasing miR-378e and decreasing RPN2, providing a novel mechanism for understanding the pathogenesis of glioma.
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Affiliation(s)
- Chenyu Ding
- Department of Neurosurgery, The First Affiliated Hospital of Fujian Medical University, 20 Chazhong Road, Taijiang District, Fuzhou, 350001, Fujian, China
| | - Zanyi Wu
- Department of Neurosurgery, The First Affiliated Hospital of Fujian Medical University, 20 Chazhong Road, Taijiang District, Fuzhou, 350001, Fujian, China
| | - Honghai You
- Department of Neurosurgery, The First Affiliated Hospital of Fujian Medical University, 20 Chazhong Road, Taijiang District, Fuzhou, 350001, Fujian, China
| | - Hongliang Ge
- Department of Neurosurgery, The First Affiliated Hospital of Fujian Medical University, 20 Chazhong Road, Taijiang District, Fuzhou, 350001, Fujian, China
| | - Shufa Zheng
- Department of Neurosurgery, The First Affiliated Hospital of Fujian Medical University, 20 Chazhong Road, Taijiang District, Fuzhou, 350001, Fujian, China
| | - Yuanxiang Lin
- Department of Neurosurgery, The First Affiliated Hospital of Fujian Medical University, 20 Chazhong Road, Taijiang District, Fuzhou, 350001, Fujian, China
| | - Xiyue Wu
- Department of Neurosurgery, The First Affiliated Hospital of Fujian Medical University, 20 Chazhong Road, Taijiang District, Fuzhou, 350001, Fujian, China
| | - Zhangya Lin
- Department of Neurosurgery, The First Affiliated Hospital of Fujian Medical University, 20 Chazhong Road, Taijiang District, Fuzhou, 350001, Fujian, China
| | - Dezhi Kang
- Department of Neurosurgery, The First Affiliated Hospital of Fujian Medical University, 20 Chazhong Road, Taijiang District, Fuzhou, 350001, Fujian, China.
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Lu S, Yang X, Wang C, Chen S, Lu S, Yan W, Xiong K, Liu F, Yan J. Current status and potential role of circular RNAs in neurological disorders. J Neurochem 2019; 150:237-248. [PMID: 31099046 DOI: 10.1111/jnc.14724] [Citation(s) in RCA: 40] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2018] [Revised: 03/23/2019] [Accepted: 05/13/2019] [Indexed: 01/01/2023]
Abstract
Given the importance of non-coding RNAs in modulating normal brain functions and their implications in the treatment of neurological disorders, non-coding RNA-based diagnostic and therapeutic strategies have shown great clinical potential. Circular RNAs (circRNAs) have emerged as potentially important players in this field. Recent studies have indicated that circRNAs might play vital roles in Alzheimer's disease, Parkinson's disease, ischemic brain injury, and neurotoxicity. However, the mechanisms of action of circRNAs have not been fully characterized. We aimed to review recent advances in circRNA research in the brain to provide new insights on the roles of circRNAs in neurological disorders.
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Affiliation(s)
- Shanshan Lu
- Department of Forensic Science, School of Basic Medical Science, Central South University, Changsha, Hunan, China.,Histology and Embryology, School of Basic Medical Science, Central South University, Changsha, Hunan, China
| | - Xue Yang
- Department of Forensic Science, School of Basic Medical Science, Central South University, Changsha, Hunan, China
| | - Chudong Wang
- Department of Forensic Science, School of Basic Medical Science, Central South University, Changsha, Hunan, China
| | - Siqi Chen
- Department of Forensic Science, School of Basic Medical Science, Central South University, Changsha, Hunan, China
| | - Shuang Lu
- Department of Forensic Science, School of Basic Medical Science, Central South University, Changsha, Hunan, China.,Anatomy and Neurobiology, School of Basic Medical Science, Central South University, Changsha, Hunan, China
| | - Weitao Yan
- Anatomy and Neurobiology, School of Basic Medical Science, Central South University, Changsha, Hunan, China
| | - Kun Xiong
- Anatomy and Neurobiology, School of Basic Medical Science, Central South University, Changsha, Hunan, China
| | - Fengxia Liu
- Department of Human Anatomy, School of Basic Medical Science, Xinjiang Medical University, Urumqi, China
| | - Jie Yan
- Department of Forensic Science, School of Basic Medical Science, Central South University, Changsha, Hunan, China.,Department of Human Anatomy, School of Basic Medical Science, Xinjiang Medical University, Urumqi, China
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