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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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Pant K, Sharma A, Menon SV, Ali H, Hassan Almalki W, Kaur M, Deorari M, Kazmi I, Mahajan S, Kalra H, Alzarea SI. Exploring ncRNAs in epilepsy: From oxidative stress regulation to therapy. Brain Res 2024; 1841:149089. [PMID: 38880410 DOI: 10.1016/j.brainres.2024.149089] [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: 04/22/2024] [Revised: 06/10/2024] [Accepted: 06/13/2024] [Indexed: 06/18/2024]
Abstract
Epilepsy is a prevalent neurological illness which is linked with high worldwide burdens. Oxidative stress (OS) is recognized to be among the contributors that trigger the advancement of epilepsy, affecting neuronal excitability and synaptic transmission. Various types of non-coding RNAs (ncRNAs) are known to serve vital functions in many disease mechanisms, including epilepsy. The current review sought to understand better the mechanisms through which these ncRNAs regulate epilepsy's OS-related pathways. We investigated the functions of microRNAs in controlling gene expression at the post-translatory stage and their involvement in OS and neuroinflammation. We also looked at the different regulatory roles of long ncRNAs, including molecular scaffolding, enhancer, and transcriptional activator, during OS. Circular RNAs and their capability to act as miRNA decoys and their consequential impact on epilepsy development were also explored. Our review aimed to improve the current understanding of novel therapies for epilepsy based on the role of ncRNAs in OS pathways. We also demonstrated the roles of ncRNAs in epilepsy treatment and diagnosis, explaining that these molecules play vital roles that could be used in therapy as biomarkers.
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Affiliation(s)
- Kumud Pant
- Graphic Era (Deemed to be University), Clement Town Dehradun, 248002, India; Graphic Era Hill University Clement Town Dehradun, 248002, India
| | - Aanchal Sharma
- Chandigarh Pharmacy College, Chandigarh Group of Colleges, Jhanjheri, Mohali 140307, Punjab, India
| | - Soumya V Menon
- Department of Biotechnology and Genetics, Jain (Deemed-to-be) University, Bengaluru, Karnataka 560069, India; Department of Allied Healthcare and Sciences, Vivekananda Global University, Jaipur, Rajasthan 303012, India
| | - Haider Ali
- Centre for Global Health Research, Saveetha Medical College, Saveetha Institute of Medical and Technical Sciences, Saveetha University, India; Department of Pharmacology, Kyrgyz State Medical College, Bishkek, Kyrgyzstan.
| | - Waleed Hassan Almalki
- Department of Pharmacology, College of Pharmacy, Umm Al-Qura University, Makkah, Saudi Arabia
| | - Mandeep Kaur
- Department of Sciences, Vivekananda Global University, Jaipur, Rajasthan 303012, India
| | - Mahamedha Deorari
- School of Basic & Applied Sciences, Shobhit University, Gangoh, Uttar Pradesh-247341, India; Department of Health & Allied Sciences, Arka Jain University, Jamshedpur, Jharkhand- 831001, India
| | - Imran Kazmi
- Department of Biochemistry, Faculty of Science, King Abdulaziz University, 21589, Jeddah, Saudi Arabia
| | - Shriya Mahajan
- Centre of Research Impact and Outcome, Chitkara University, Rajpura 140417, Punjab, India
| | - Hitesh Kalra
- Chitkara Centre for Research and Development, Chitkara University, Himachal Pradesh 174103, India
| | - Sami I Alzarea
- Department of Pharmacology, College of Pharmacy, Jouf University, 72341, Sakaka, Aljouf, Saudi Arabia
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Zhai J, Wang C, Jin L, Liu M, Chen Y. Research progress on the relationship between epilepsy and circRNA. Brain Res 2024; 1830:148823. [PMID: 38403039 DOI: 10.1016/j.brainres.2024.148823] [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: 10/02/2023] [Revised: 01/31/2024] [Accepted: 02/22/2024] [Indexed: 02/27/2024]
Abstract
OBJECTIVE This review aims to provide a comprehensive summary of the latest research progress regarding the relationship between epilepsy and circular RNA (circRNA). METHODS Relevant literature from the PubMed database was meticulously searched and reviewed. The selected articles focused on investigating the association between epilepsy and circRNA, including studies on expression patterns, diagnostic markers, therapeutic targets, and functional mechanisms. RESULTS Epilepsy, characterized by recurrent seizures, is a neurological disorder. Numerous studies have demonstrated significant alterations in the expression profiles of circRNA in epileptic brain tissues, animal models, and peripheral blood samples. These differential expressions of circRNA are believed to be closely linked with the occurrence and development of epilepsy. Moreover, circRNA has shown promising potential as diagnostic markers for epilepsy, as well as prognostic indicators for predicting disease outcomes. Furthermore, circRNA has emerged as a potential therapeutic target for epilepsy treatment, offering prospects for gene therapy interventions. CONCLUSION The dysregulation of circRNA expression in epilepsy suggests its potential involvement in the pathogenesis and progression of this disorder. Identifying specific circRNA molecules associated with epilepsy may pave the way for novel diagnostic approaches and therapeutic strategies. However, further investigations are imperative to elucidate the precise functional mechanisms of circRNA in epilepsy and validate its clinical utility.
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Affiliation(s)
- Jinxia Zhai
- Department of Neurology, The Affiliated Nanhua Hospital, Hengyang Medical School, University of South China, Hengyang, Hunan, China
| | - Chao Wang
- Department of Neurology, The Affiliated Nanhua Hospital, Hengyang Medical School, University of South China, Hengyang, Hunan, China
| | - Liang Jin
- Department of Neurology, The Affiliated Nanhua Hospital, Hengyang Medical School, University of South China, Hengyang, Hunan, China
| | - Mingjie Liu
- Department of Neurology, The Affiliated Nanhua Hospital, Hengyang Medical School, University of South China, Hengyang, Hunan, China
| | - Yongjun Chen
- Department of Neurology, The Affiliated Nanhua Hospital, Hengyang Medical School, University of South China, Hengyang, Hunan, China.
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Kohansal M, Alghanimi YK, Banoon SR, Ghasemian A, Afkhami H, Daraei A, Wang Z, Nekouian N, Xie J, Deng X, Tang H. CircRNA-associated ceRNA regulatory networks as emerging mechanisms governing the development and biophysiopathology of epilepsy. CNS Neurosci Ther 2024; 30:e14735. [PMID: 38676299 PMCID: PMC11053249 DOI: 10.1111/cns.14735] [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: 11/15/2023] [Revised: 03/17/2024] [Accepted: 04/07/2024] [Indexed: 04/28/2024] Open
Abstract
The etiology of epilepsy is ascribed to the synchronized aberrant neuronal activity within the brain. Circular RNAs (circRNAs), a class of non-coding RNAs characterized by their circular structures and covalent linkage, exert a substantial influence on this phenomenon. CircRNAs possess stereotyped replication, transience, repetitiveness, and paroxysm. Additionally, MicroRNA (miRNA) plays a crucial role in the regulation of diverse pathological processes, including epilepsy. CircRNA is of particular significance due to its ability to function as a competing endogenous RNA, thereby sequestering or inhibiting miRNA activity through binding to target mRNA. Our review primarily concentrates on elucidating the pathological and functional roles, as well as the underlying mechanisms, of circRNA-miRNA-mRNA networks in epilepsy. Additionally, it explores the potential utility of these networks for early detection and therapeutic intervention.
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Affiliation(s)
- Maryam Kohansal
- Noncommunicable Diseases Research CenterFasa University of Medical SciencesFasaIran
- Department of BiologyPayame Noor UniversityTehranIran
| | | | - Shaimaa R. Banoon
- Department of Biology, College of ScienceUniversity of MisanAmarahIraq
| | - Abdolmajid Ghasemian
- Noncommunicable Diseases Research CenterFasa University of Medical SciencesFasaIran
| | - Hamed Afkhami
- Nervous System Stem Cells Research CenterSemnan University of Medical SciencesSemnanIran
- Cellular and Molecular Research CenterQom University of Medical SciencesQomIran
- Faculty of MedicineShahed UniversityTehranIran
| | - Abdolreza Daraei
- Cellular and Molecular Biology Research Center, Health Research InstituteBabol University of Medical SciencesBabolIran
| | - Zhangling Wang
- State Key Laboratory of Oncology in South China, Guangdong Provincial Clinical Research Center for CancerSun Yat‐sen University Cancer CenterGuangzhouChina
| | - Najmeh Nekouian
- Noncommunicable Diseases Research CenterFasa University of Medical SciencesFasaIran
| | - Jindong Xie
- State Key Laboratory of Oncology in South China, Guangdong Provincial Clinical Research Center for CancerSun Yat‐sen University Cancer CenterGuangzhouChina
| | - Xinpei Deng
- State Key Laboratory of Oncology in South China, Guangdong Provincial Clinical Research Center for CancerSun Yat‐sen University Cancer CenterGuangzhouChina
| | - Hailin Tang
- State Key Laboratory of Oncology in South China, Guangdong Provincial Clinical Research Center for CancerSun Yat‐sen University Cancer CenterGuangzhouChina
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Chen S, Huang M, Xu D, Li M. Epigenetic regulation in epilepsy: A novel mechanism and therapeutic strategy for epilepsy. Neurochem Int 2024; 173:105657. [PMID: 38145842 DOI: 10.1016/j.neuint.2023.105657] [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: 08/23/2023] [Revised: 12/02/2023] [Accepted: 12/14/2023] [Indexed: 12/27/2023]
Abstract
Epilepsy is a common neurological disorder characterized by recurrent seizures with excessive and abnormal neuronal discharges. Epileptogenesis is usually involved in neuropathological processes such as ion channel dysfunction, neuronal injury, inflammatory response, synaptic plasticity, gliocyte proliferation and mossy fiber sprouting, currently the pathogenesis of epilepsy is not yet completely understood. A growing body of studies have shown that epigenetic regulation, such as histone modifications, DNA methylation, noncoding RNAs (ncRNAs), N6-methyladenosine (m6A) and restrictive element-1 silencing transcription factor/neuron-restrictive silencing factor (REST/NRSF) are also involved in epilepsy. Through epigenetic studies, we found that the synaptic dysfunction, nerve damage, cognitive dysfunction and brain development abnormalities are affected by epigenetic regulation of epilepsy-related genes in patients with epilepsy. However, the functional roles of epigenetics in pathogenesis and treatment of epilepsy are still to be explored. Therefore, profiling the array of genes that are epigenetically dysregulated in epileptogenesis is likely to advance our understanding of the mechanisms underlying the pathophysiology of epilepsy and may for the amelioration of these serious human conditions provide novel insight into therapeutic strategies and diagnostic biomarkers for epilepsy to improve serious human condition.
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Affiliation(s)
- Shuang Chen
- Department of Neurology, Hubei Provincial Hospital of Integrated Chinese and Western Medicine, Hubei University of Chinese Medicine, Wuhan, 430000, China
| | - Ming Huang
- Department of Neurology, Hubei Provincial Hospital of Integrated Chinese and Western Medicine, Hubei University of Chinese Medicine, Wuhan, 430000, China
| | - Da Xu
- Department of Neurology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, 430022, China
| | - Man Li
- Department of Neurology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, 430022, China.
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Bai Y, Yao HH. Circular RNAs: Diagnostic and Therapeutic Perspectives in CNS Diseases. Curr Med Sci 2023; 43:879-889. [PMID: 37815742 DOI: 10.1007/s11596-023-2784-8] [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: 05/09/2023] [Accepted: 08/07/2023] [Indexed: 10/11/2023]
Abstract
Circular RNAs (circRNAs) are a class of regulatory non-coding RNAs characterized by the presence of covalently closed ends. A growing body of evidence suggests that circRNAs play important roles in physiology and pathology. In particular, accumulating data on circRNA functions in various central nervous system (CNS) diseases and their correlations indicate that circRNAs are critical contributors to the onset and development of brain disorders. In this review, we focus on the regulatory and functional roles of circRNAs in CNS diseases, highlighting their diagnostic and therapeutic potential, with the aim of providing new insights into CNS diseases.
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Affiliation(s)
- Ying Bai
- Jiangsu Provincial Key Laboratory of Critical Care Medicine, Department of Pharmacology, School of Medicine, Southeast University, Nanjing, 210009, China
| | - Hong-Hong Yao
- Jiangsu Provincial Key Laboratory of Critical Care Medicine, Department of Pharmacology, School of Medicine, Southeast University, Nanjing, 210009, China.
- Co-innovation Center of Neuroregeneration, Nantong University, Nantong, 226001, China.
- Institute of Life Sciences, Key Laboratory of Developmental Genes and Human Disease, Southeast University, Nanjing, 210009, China.
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Chen Z, Liu Y, Wu X, Lin W, Liu Z, Huang Y, Chen Y, Tang Y, Chen A, Lin C. Spinal CircKcnk9 Regulates Chronic Visceral Hypersensitivity of Irritable Bowel Syndrome. THE JOURNAL OF PAIN 2023; 24:463-477. [PMID: 36257575 DOI: 10.1016/j.jpain.2022.10.007] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/19/2022] [Revised: 09/17/2022] [Accepted: 10/06/2022] [Indexed: 11/08/2022]
Abstract
Dysregulation of circular RNAs (circRNAs) has been reported to be functionally associated with chronic pain, but it is unknown whether and how circRNAs participate in visceral hypersensitivity. The expression of circKcnk9 was increased in spinal neurons of irritable bowel syndrome (IBS)-like rats. ShcircKcnk9 attenuated visceral hypersensitivity and inhibited c-Fos expression in IBS-like rats, whereas overexpression of spinal circKcnk9 induced visceral hypersensitivity and increased c-Fos expression in control rats. Furthermore, circKcnk9 was found to act as a miR-124-3p sponge. MiR-124-3p antagomir restored pain responses downregulated by shcircKcnk9 in IBS-like rats. Finally, the signal transducer and activator of transcription 3 (STAT3), validated as a target of miR-124-3p, could play a critical role in visceral hypersensitivity by regulating NSF/GluR2. PERSPECTIVE: Spinal circKcnk9 functions as a miR-124-3p sponge to promote visceral hypersensitivity by regulating the STAT3/NSF/GluR2 pathway. This pathway might provide a novel epigenetic mechanism of visceral hypersensitivity and a potential circRNA therapeutic target for IBS.
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Affiliation(s)
- Zhong Chen
- Pain Research Institute, Fujian Provincial Key Laboratory of Brain Aging and Neurodegenerative Diseases, School of Basic Medical Sciences, Fujian Medical University, Fuzhou, Fujian, China
| | - Yuan Liu
- Pain Research Institute, Fujian Provincial Key Laboratory of Brain Aging and Neurodegenerative Diseases, School of Basic Medical Sciences, Fujian Medical University, Fuzhou, Fujian, China
| | - Xianhe Wu
- Pain Research Institute, Fujian Provincial Key Laboratory of Brain Aging and Neurodegenerative Diseases, School of Basic Medical Sciences, Fujian Medical University, Fuzhou, Fujian, China
| | - Wei Lin
- Department of Pediatrics, The First Affiliated Hospital of Fujian Medical University, Fuzhou, Fujian, China
| | - Zihan Liu
- Pain Research Institute, Fujian Provincial Key Laboratory of Brain Aging and Neurodegenerative Diseases, School of Basic Medical Sciences, Fujian Medical University, Fuzhou, Fujian, China
| | - Yang Huang
- Pain Research Institute, Fujian Provincial Key Laboratory of Brain Aging and Neurodegenerative Diseases, School of Basic Medical Sciences, Fujian Medical University, Fuzhou, Fujian, China
| | - Yu Chen
- Pain Research Institute, Fujian Provincial Key Laboratory of Brain Aging and Neurodegenerative Diseases, School of Basic Medical Sciences, Fujian Medical University, Fuzhou, Fujian, China
| | - Ying Tang
- Pain Research Institute, Fujian Provincial Key Laboratory of Brain Aging and Neurodegenerative Diseases, School of Basic Medical Sciences, Fujian Medical University, Fuzhou, Fujian, China
| | - Aiqin Chen
- Pain Research Institute, Fujian Provincial Key Laboratory of Brain Aging and Neurodegenerative Diseases, School of Basic Medical Sciences, Fujian Medical University, Fuzhou, Fujian, China
| | - Chun Lin
- Pain Research Institute, Fujian Provincial Key Laboratory of Brain Aging and Neurodegenerative Diseases, School of Basic Medical Sciences, Fujian Medical University, Fuzhou, Fujian, China.; Department of Pediatrics, The First Affiliated Hospital of Fujian Medical University, Fuzhou, Fujian, China..
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Xu XX, Shi RX, Fu Y, Wang JL, Tong X, Zhang SQ, Wang N, Li MX, Tong Y, Wang W, He M, Liu BY, Chen GL, Guo F. Neuronal nitric oxide synthase/reactive oxygen species pathway is involved in apoptosis and pyroptosis in epilepsy. Neural Regen Res 2022; 18:1277-1285. [PMID: 36453412 PMCID: PMC9838157 DOI: 10.4103/1673-5374.357906] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022] Open
Abstract
Dysfunction of neuronal nitric oxide synthase contributes to neurotoxicity, which triggers cell death in various neuropathological diseases, including epilepsy. Studies have shown that inhibition of neuronal nitric oxide synthase activity increases the epilepsy threshold, that is, has an anticonvulsant effect. However, the exact role and potential mechanism of neuronal nitric oxide synthase in seizures are still unclear. In this study, we performed RNA sequencing, functional enrichment analysis, and weighted gene coexpression network analysis of the hippocampus of tremor rats, a rat model of genetic epilepsy. We found damaged hippocampal mitochondria and abnormal succinate dehydrogenase level and Na+-K+-ATPase activity. In addition, we used a pilocarpine-induced N2a cell model to mimic epileptic injury. After application of neuronal nitric oxide synthase inhibitor 7-nitroindazole, changes in malondialdehyde, lactate dehydrogenase and superoxide dismutase, which are associated with oxidative stress, were reversed, and the increase in reactive oxygen species level was reversed by 7-nitroindazole or reactive oxygen species inhibitor N-acetylcysteine. Application of 7-nitroindazole or N-acetylcysteine downregulated the expression of caspase-3 and cytochrome c and reversed the apoptosis of epileptic cells. Furthermore, 7-nitroindazole or N-acetylcysteine downregulated the abnormally high expression of NLRP3, gasdermin-D, interleukin-1β and interleukin-18. This indicated that 7-nitroindazole and N-acetylcysteine each reversed epileptic cell death. Taken together, our findings suggest that the neuronal nitric oxide synthase/reactive oxygen species pathway is involved in pyroptosis of epileptic cells, and inhibiting neuronal nitric oxide synthase activity or its induced oxidative stress may play a neuroprotective role in epilepsy.
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Affiliation(s)
- Xiao-Xue Xu
- Department of Pharmaceutical Toxicology, School of Pharmaceutical Science, China Medical University, Shenyang, Liaoning Province, China,Department of Neurology, the First Affiliated Hospital of China Medical University, Shenyang, Liaoning Province, China
| | - Rui-Xue Shi
- Department of Pharmaceutical Toxicology, School of Pharmaceutical Science, China Medical University, Shenyang, Liaoning Province, China
| | - Yu Fu
- Department of Pharmaceutical Toxicology, School of Pharmaceutical Science, China Medical University, Shenyang, Liaoning Province, China
| | - Jia-Lu Wang
- Department of Neurology, the First Affiliated Hospital of China Medical University, Shenyang, Liaoning Province, China
| | - Xin Tong
- Department of Pharmaceutical Toxicology, School of Pharmaceutical Science, China Medical University, Shenyang, Liaoning Province, China
| | - Shi-Qi Zhang
- Department of Pharmaceutical Toxicology, School of Pharmaceutical Science, China Medical University, Shenyang, Liaoning Province, China
| | - Na Wang
- Key Laboratory of Medical Electrophysiology, Ministry of Education & Medical Electrophysiological Key Laboratory of Sichuan Province, Institute of Cardiovascular Research, Southwest Medical University, Luzhou, Sichuan Province, China
| | - Mei-Xuan Li
- Department of Pharmaceutical Toxicology, School of Pharmaceutical Science, China Medical University, Shenyang, Liaoning Province, China
| | - Yu Tong
- Department of Pharmaceutical Toxicology, School of Pharmaceutical Science, China Medical University, Shenyang, Liaoning Province, China
| | - Wei Wang
- Department of Endocrinology and Metabolism, the Fourth Affiliated Hospital of China Medical University, Shenyang, Liaoning Province, China
| | - Miao He
- Department of Pharmaceutical Toxicology, School of Pharmaceutical Science, China Medical University, Shenyang, Liaoning Province, China
| | - Bing-Yang Liu
- Department of Endocrinology, Shengjing Hospital of China Medical University, Shenyang, Liaoning Province, China,Correspondence to: Feng Guo, ; Gui-Lan Chen, ; Bing-Yang Liu, .
| | - Gui-Lan Chen
- Key Laboratory of Medical Electrophysiology, Ministry of Education & Medical Electrophysiological Key Laboratory of Sichuan Province, Institute of Cardiovascular Research, Southwest Medical University, Luzhou, Sichuan Province, China,Correspondence to: Feng Guo, ; Gui-Lan Chen, ; Bing-Yang Liu, .
| | - Feng Guo
- Department of Pharmaceutical Toxicology, School of Pharmaceutical Science, China Medical University, Shenyang, Liaoning Province, China,Correspondence to: Feng Guo, ; Gui-Lan Chen, ; Bing-Yang Liu, .
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Expression of miR-155 in Serum Exosomes in Children with Epilepsy and Its Diagnostic Value. DISEASE MARKERS 2022; 2022:7979500. [PMID: 35928925 PMCID: PMC9345723 DOI: 10.1155/2022/7979500] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/30/2021] [Accepted: 02/22/2022] [Indexed: 11/17/2022]
Abstract
Objective. This study was designed to analyze the expression of miR-155 in serum exosomes in children with epilepsy and to explore its diagnostic value. Methods. From March 2020 to March 2021, 43 hospitalized children with epilepsy admitted to the Department of Neurology of the hospital were included, and another 43 gender- and age-matched healthy children were randomly selected as the healthy control group during the same period. Then fasting serum samples of the two groups were collected to extract the exosomes. The morphology of the exosomes was evaluated under a transmission electron microscope, and the expression of specific protein markers on the surface was detected by Western Blot. In addition, the relative expression of miR-155 in serum exosomes in children with epilepsy with different courses of the disease and different degrees of abnormal electroencephalography (EEG) was compared, and the area under the receiver operating characteristic (ROC) curve (ROC-AUC) was used to evaluate the diagnostic value of miR-155. Results. A higher relative expression level of miR-155 in serum exosomes was obtained in the epilepsy group, as compared to the healthy control group (P<0.05), and the relative expression of miR-155 in serum exosomes in children with epilepsy was correlated with the course of the disease and the degree of abnormal EEG (both P<0.05). In addition, the expression of miR-155 in serum exosomes showed high diagnostic efficiency for epilepsy (AUC = 0.813, P<0.05). Conclusion. The expression of miR-155 in serum exosomes in children with epilepsy is up-regulated, and its level is related to the course of the disease and the degree of abnormal EEG, so miR-155 in serum exosomes may be used as a biomarker for the diagnosis and assessment of the severity of epilepsy.
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Zeng C, Hu J, Chen F, Huang T, Zhang L. The Coordination of mTOR Signaling and Non-Coding RNA in Regulating Epileptic Neuroinflammation. Front Immunol 2022; 13:924642. [PMID: 35898503 PMCID: PMC9310657 DOI: 10.3389/fimmu.2022.924642] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2022] [Accepted: 06/16/2022] [Indexed: 11/13/2022] Open
Abstract
Epilepsy accounts for a significant proportion of the burden of neurological disorders. Neuroinflammation acting as the inflammatory response to epileptic seizures is characterized by aberrant regulation of inflammatory cells and molecules, and has been regarded as a key process in epilepsy where mTOR signaling serves as a pivotal modulator. Meanwhile, accumulating evidence has revealed that non-coding RNAs (ncRNAs) interfering with mTOR signaling are involved in neuroinflammation and therefore articipate in the development and progression of epilepsy. In this review, we highlight recent advances in the regulation of mTOR on neuroinflammatory cells and mediators, and feature the progresses of the interaction between ncRNAs and mTOR in epileptic neuroinflammation.
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Affiliation(s)
- Chudai Zeng
- Departments of Neurosurgery, and National Clinical Research Center of Geriatric Disorders, Xiangya Hospital, Central South University, Changsha, China
| | - Jason Hu
- Department of Neonatology, Yale School of Medicine, New Haven, CT, United States
| | - Fenghua Chen
- Departments of Neurosurgery, and National Clinical Research Center of Geriatric Disorders, Xiangya Hospital, Central South University, Changsha, China
- *Correspondence: Fenghua Chen, ; Tianxiang Huang, ; Longbo Zhang,
| | - Tianxiang Huang
- Departments of Neurosurgery, and National Clinical Research Center of Geriatric Disorders, Xiangya Hospital, Central South University, Changsha, China
- *Correspondence: Fenghua Chen, ; Tianxiang Huang, ; Longbo Zhang,
| | - Longbo Zhang
- Departments of Neurosurgery, and National Clinical Research Center of Geriatric Disorders, Xiangya Hospital, Central South University, Changsha, China
- Department of Neurosurgery, Yale School of Medicine, New Haven, CT, United States
- *Correspondence: Fenghua Chen, ; Tianxiang Huang, ; Longbo Zhang,
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Manna I, Fortunato F, De Benedittis S, Sammarra I, Bertoli G, Labate A, Gambardella A. Non-Coding RNAs: New Biomarkers and Therapeutic Targets for Temporal Lobe Epilepsy. Int J Mol Sci 2022; 23:ijms23063063. [PMID: 35328484 PMCID: PMC8954985 DOI: 10.3390/ijms23063063] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2022] [Revised: 03/08/2022] [Accepted: 03/10/2022] [Indexed: 02/04/2023] Open
Abstract
Temporal lobe epilepsy (TLE) is the most common form of focal epilepsy; it is considered a network disorder associated with structural changes. Incomplete knowledge of the pathological changes in TLE complicates a therapeutic approach; indeed, 30 to 50% of patients with TLE are refractory to drug treatment. Non-coding RNAs (ncRNAs), acting as epigenetic factors, participate in the regulation of the pathophysiological processes of epilepsy and are dysregulated during epileptogenesis. Abnormal expression of ncRNA is observed in patients with epilepsy and in animal models of epilepsy. Furthermore, ncRNAs could also be used as biomarkers for the diagnosis and prognosis of treatment response in epilepsy. In summary, ncRNAs can represent important mechanisms and targets for the modulation of brain excitability and can provide information on pathomechanisms, biomarkers and novel therapies for epilepsy. In this review, we summarize the latest research advances concerning mainly molecular mechanisms, regulated by ncRNA, such as synaptic plasticity, inflammation and apoptosis, already associated with the pathogenesis of TLE. Moreover, we discuss the role of ncRNAs, such as microRNAs, long non-coding RNAs and circular RNAs, in the pathophysiology of epilepsy, highlighting their use as potential biomarkers for future therapeutic approaches.
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Affiliation(s)
- Ida Manna
- Institute of Molecular Bioimaging and Physiology (IBFM), National Research Council (CNR), Section of Germaneto, 88100 Catanzaro, Italy
- Correspondence: (I.M.); (A.G.)
| | - Francesco Fortunato
- Department of Medical and Surgical Sciences, Institute of Neurology, University “Magna Graecia”, Germaneto, 88100 Catanzaro, Italy; (F.F.); (S.D.B.); (I.S.); (A.L.)
| | - Selene De Benedittis
- Department of Medical and Surgical Sciences, Institute of Neurology, University “Magna Graecia”, Germaneto, 88100 Catanzaro, Italy; (F.F.); (S.D.B.); (I.S.); (A.L.)
| | - Ilaria Sammarra
- Department of Medical and Surgical Sciences, Institute of Neurology, University “Magna Graecia”, Germaneto, 88100 Catanzaro, Italy; (F.F.); (S.D.B.); (I.S.); (A.L.)
| | - Gloria Bertoli
- Institute of Molecular Bioimaging and Physiology (IBFM), National Research Council (CNR), 20090 Milan, Italy;
| | - Angelo Labate
- Department of Medical and Surgical Sciences, Institute of Neurology, University “Magna Graecia”, Germaneto, 88100 Catanzaro, Italy; (F.F.); (S.D.B.); (I.S.); (A.L.)
| | - Antonio Gambardella
- Institute of Molecular Bioimaging and Physiology (IBFM), National Research Council (CNR), Section of Germaneto, 88100 Catanzaro, Italy
- Department of Medical and Surgical Sciences, Institute of Neurology, University “Magna Graecia”, Germaneto, 88100 Catanzaro, Italy; (F.F.); (S.D.B.); (I.S.); (A.L.)
- Correspondence: (I.M.); (A.G.)
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