Abstract
Peste-des-Petits-Ruminants (PPR) or goat plague is an important viral disease of sheep and goats caused by the small ruminant morbilli virus or PPR virus (PPRV). Long non coding RNAs (lncRNA) and circular RNAs (circRNA) play a pivotal role in several biological processes including regulation of virus-host interactions. The present study explored the expression of lncRNA, circRNA and their functions in PPRV infected B-lymphocyte (B95a) cells. The results revealed a total of 4531 lncRNA and 2348 circRNA expression in both mock and PPRV infected samples. Analysis of differentially expressed (DE) RNA identified 123 DE-lncRNA and 39 DE-circRNA as significantly dysregulated. Functional analysis of cis-target genes of DE-lncRNA indicated activation of TCF dependent WNT signaling and PKN1 stimulated transcription process. Interactions (sponging) of microRNA (miRNA) revealed 344 DE-lncRNA-miRNA and 93 DE-circRNA-miRNA pairs. The competing endogenous RNA (ceRNA) network of lncRNA/circRNA-miRNA-mRNA in PPRV infected B95a cells was represented by 69 ceRNA pairs. We validated the DE-circRNA by targeted amplification and sequencing of back spliced junctions (BSJs). The present study revealed a profile of lncRNA, circRNA and their potential ceRNA network in PPRV infection. The results provide insight for better understanding of PPRV-host interactions.
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