Genome-wide profiling of long noncoding RNA expression patterns and CeRNA analysis in mouse cortical neurons infected with different strains of borna disease virus

Borna disease virus 1(BoDV-1)is neurotropic prototype of Bornaviruses causing neurological diseases and maintaining persistent infection in brain cells of mammalian species.Long non-coding RNA(lncRNA)is transcript of more than 200 nucleotides without proteincoding function regulating various biological processes as proliferation,apoptosis,cell migration and viral infection.However,regulatory of lncRNAs in BoDV-1 infection remains unknown.To identify differential expression profiles and predict functions of lncRNA in BoDV-1 infection,microarray data showed that 3528 lncRNAs and 2661 lncRNAs were differentially expressed in Strain V and Hu-H1 BoDV-infected groups compared with control groups,respectively.Gene Ontology(GO)and pathway analysis suggested that differential lncRNAs may be involved in regulation of metabolic,biological regulation,cellular process,endocytosis,viral infections and cell adhesion processes,cancer in both BoDV-infected strains.ENSMUST00000128469 was found down-regulated in both BoDV-infected groups compared with control groups consistent with microarray(p<0.05).ceRNA analysis indicated possible interaction networks as ENSMUST00000128469/miR-22-5p,miR-206-3p,miR-302b-5p,miR-302c-3p,miR-1a-3p/Igf1.Igf1 was found up-regulated in both BoDV-infected groups compared with control groups(p<0.05).Possible functions of predicted target mRNAs and miRNAs of ENSMUST00000128469 were involved in cell proliferation,transcriptional misregulation and proteoglycan pathways enriched in cancer.lncRNA may be involved in regulation of Hu-H1 inhibited cell proliferation and promoted apoptosis through NF-kB,JNK/MAPK signaling,BCL2 and CDK6/E2F1 pathways different from Strain V.Possible interaction networks as ENSMUST00000128469/miR-22-5p,miR-206-3p,miR-302b-5p,miR-302c-3p,miR-1a-3p/Igf1 may involve in regulation of cell proliferation,apoptosis,and cancer.