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Luo ZH, Walid A A, Xie Y, Long H, Xiao W, Xu L, Fu Y, Feng L, Xiao B. Construction and analysis of a dysregulated lncRNA-associated ceRNA network in a rat model of temporal lobe epilepsy. Seizure 2019; 69:105-114. [PMID: 31005697 DOI: 10.1016/j.seizure.2019.04.010] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2018] [Revised: 04/09/2019] [Accepted: 04/11/2019] [Indexed: 02/09/2023] Open
Abstract
PURPOSE The aim of this work was to investigate expression and cross-talk between long noncoding RNAs (lncRNAs) and microRNAs (miRNAs) in a rat model of temporal lobe epilepsy (TLE). METHODS Noncoding RNA chips were used to explore the expression and relationship between lncRNAs and miRNAs in a rat model of TLE. The expression of different lncRNAs and mRNAs was analysed by Pearson's correlation coefficient, and the function of each lncRNA was annotated by co-expressed genes based on gene ontology classification using DAVID. MiRNA-lncRNA interactions were predicted by using StarBase v2.0, and the competing endogenous RNA (ceRNA) relationship between lncRNAs and miRNAs was built by using Cytoscape software. Real-time PCR was used to verify chip results. RESULTS According to the expression profile analysis, 54 lncRNAs, 36 miRNAs and 122 mRNAs were dysregulated in TLE rat model compared to normal controls. The functions of lncRNAs in epilepsy were annotated by their co-expressed genes based on the "guilt by association" strategy. DAVID analysis revealed that differentially expressed lncRNA functions were involved in "potassium channel activity", "metal ion transmembrane transporter activity", and "voltage-gated potassium channel activity". Based on the ceRNA theory, 13 mRNAs, 10 miRNAs and 11 lncRNAs comprise the lncRNA-miRNA-mRNA ceRNA relationship in epilepsy. CONCLUSIONS The molecular functions of the differentially expressed genes play an important role in the pathogenesis of voltage-gated potassium channel activity. Further ceRNA analyses suggest that modulation of lncRNAs could emerge as a promising therapeutic target for TLE.
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Affiliation(s)
- Zhao Hui Luo
- Department of Neurology, Xiangya Hospital, Central South University, Changsha, 410008, PR China; Neurology Institute of Xiangya Hospital, Central South University, Changsha, Hunan 410008, PR China
| | - Alsharafi Walid A
- Department of Neurology, Xiangya Hospital, Central South University, Changsha, 410008, PR China; Neurology Institute of Xiangya Hospital, Central South University, Changsha, Hunan 410008, PR China
| | - Yuanyuan Xie
- Department of Neurology, Xiangya Hospital, Central South University, Changsha, 410008, PR China; Neurology Institute of Xiangya Hospital, Central South University, Changsha, Hunan 410008, PR China
| | - Hongyu Long
- Department of Neurology, Xiangya Hospital, Central South University, Changsha, 410008, PR China; Neurology Institute of Xiangya Hospital, Central South University, Changsha, Hunan 410008, PR China
| | - Wenbiao Xiao
- Department of Neurology, Xiangya Hospital, Central South University, Changsha, 410008, PR China; Neurology Institute of Xiangya Hospital, Central South University, Changsha, Hunan 410008, PR China
| | - Liqun Xu
- Department of Neurology, Xiangya Hospital, Central South University, Changsha, 410008, PR China; Neurology Institute of Xiangya Hospital, Central South University, Changsha, Hunan 410008, PR China
| | - Yujiao Fu
- Department of Neurology, Xiangya Hospital, Central South University, Changsha, 410008, PR China; Neurology Institute of Xiangya Hospital, Central South University, Changsha, Hunan 410008, PR China
| | - Li Feng
- Department of Neurology, Xiangya Hospital, Central South University, Changsha, 410008, PR China; Neurology Institute of Xiangya Hospital, Central South University, Changsha, Hunan 410008, PR China.
| | - Bo Xiao
- Department of Neurology, Xiangya Hospital, Central South University, Changsha, 410008, PR China; Neurology Institute of Xiangya Hospital, Central South University, Changsha, Hunan 410008, PR China.
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