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Microarray expression profile and functional analysis of circular RNAs in choroidal neovascularization 被引量:2

Microarray expression profile and functional analysis of circular RNAs in choroidal neovascularization
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摘要 Choroidal neovascularization(CNV) is a leading cause of visual loss in age-related macular degeneration(AMD). However, the molecular mechanism for CNV progression is still unclear. This study aimed to identify CNV-related circular RNAs(circRNAs), a novel class of non-coding RNAs with diverse functions. A total of 117 circRNAs were differentially expressed in the murine CNV model by microarrays. Gene ontology(GO)enrichment and Kyoto Encyclopedia of Genes and Genomes(KEGG) analysis were performed to identify the functions of selected circRNAs. The host genes of these circRNAs were predicted to be targeted to neurogenesis(ontology: biological process), proteinaceous extracellular matrix(ECM)(ontology: cellular component), and binding(ontology: molecular function). Differentially expressed circRNAs-mediated regulatory networks were enriched in ECM receptor interaction. Most of the dysregulated circRNAs could potentially bind to five different mi RNAs by Target Scan and mi Randa. Specifically, circ_15752 was identified in this circRNAs pool which may facilitate vascular endothelial cell proliferation, migration, and tube formation, suggesting a critical role in endothelial angiogenesis. Our work suggests that dysregulated circRNAs may be involved in CNV pathogenesis and serve as potential biomarkers for CNV. Choroidal neovascularization(CNV) is a leading cause of visual loss in age-related macular degeneration(AMD). However, the molecular mechanism for CNV progression is still unclear. This study aimed to identify CNV-related circular RNAs(circRNAs), a novel class of non-coding RNAs with diverse functions. A total of 117 circRNAs were differentially expressed in the murine CNV model by microarrays. Gene ontology(GO)enrichment and Kyoto Encyclopedia of Genes and Genomes(KEGG) analysis were performed to identify the functions of selected circRNAs. The host genes of these circRNAs were predicted to be targeted to neurogenesis(ontology: biological process), proteinaceous extracellular matrix(ECM)(ontology: cellular component), and binding(ontology: molecular function). Differentially expressed circRNAs-mediated regulatory networks were enriched in ECM receptor interaction. Most of the dysregulated circRNAs could potentially bind to five different mi RNAs by Target Scan and mi Randa. Specifically, circ15752 was identified in this circRNAs pool which may facilitate vascular endothelial cell proliferation, migration, and tube formation, suggesting a critical role in endothelial angiogenesis. Our work suggests that dysregulated circRNAs may be involved in CNV pathogenesis and serve as potential biomarkers for CNV.
出处 《The Journal of Biomedical Research》 CAS CSCD 2020年第1期67-74,共8页 生物医学研究杂志(英文版)
基金 supported by the National Natural Science Foundation of China(No.81525006,81670864,and 81730025 to C.Z.) the Non-profit Central Research Institute Fund of Chinese Academy of Medical Sciences(No.2018PT32019 to C.Z.)。
关键词 circRNAs MICROARRAY choroidal NEOVASCULARIZATION circRNAs microarray choroidal neovascularization
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