Abstract
Wet age-related macular degeneration (wAMD) is the main cause of irreversible blindness in the elderly, and its pathogenesis is still not fully understood. Long non-coding RNAs (lncRNAs) participated in the pathogenesis of a number of neovascular diseases, but their role in wAMD is less known. In order to reveal the potential role of lncRNAs in wAMD, we used high-throughput sequencing to assess lncRNAs and mRNAs expression profile in the aqueous humor of patients with wAMD and of patients with age-related cataract as control. Gene Ontology (GO) analysis and Kyoto Encyclopedia of Genes and Genomes (KEGG) pathway analysis were performed to identify the potential biological functions and signaling pathways of RNA. A coding-non-coding gene co-expression (CNC) network was constructed to identify the interaction of lncRNAs and mRNAs. Quantitative PCR was used to validate the expression of selected lncRNAs. We identified 1071 differentially expressed lncRNAs and 3658 differentially expressed mRNAs in patients with wAMD compared to controls. GO and KEGG analyses suggested that differentially expressed lncRNAs–coexpressed mRNAs were mainly enriched in Rab GTPase binding, GTPase activation, RAS signaling pathway and autophagy. The top 100 differentially expressed genes were selected to build the CNC network, which could be connected by 416 edges. LncRNAs are differentially expressed in the aqueous humor of patients with wAMD and they are involved in several pathogenetic pathways. These dysregulated lncRNAs and their target genes could represent promising therapeutic targets in wAMD.
Published Version
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