Detection and characterization of microRNA expression profiling and its target genes in response to canine parvovirus in Crandell Reese Feline Kidney cells. Detection and characterization of microRNA expression profiling and its target genes in response to canine parvovirus in Crandell Reese Feline Kidney cells

We utilized high-throughput small RNA-seq technology to investigate the altered miRNA profiling in miRNA libraries from uninfected (Control) and canine parvovirus type 2c (CPV-2c) infected Crandell Reese Feline Kidney (CRFK) cells. We identified five of known miRNAs (miR-222-5p, miR-365-2-5p, miR-1247-3p, miR-322-5p, and miR-361-3p) and 3 novel miRNAs (Novel 137, Novel 141, and Novel 102) by small RNA-seq with differentially expressed genes (DEGs) in the miRNA repertoire of CPV-infected cells over control. We further predicted the potential target genes of aforementioned miRNAs using sequence homology algorithms. Notably, the targets of miR-1247-3p exhibited a potential function associated with cellular defense and humoral response to CPV. We discovered 229 putative targets from a total of 38 enriched GO terms. We next constructed GO biological process network composed of 28 target genes of miR-1247-3p, of which, some genes, namely BCL6, DLL1, GATA3, IL6, LEF1, LFNG, and WNT1 were among the genes with obviously intersected in multiple GO terms. The miRNA-1247-3 and its cognate target genes suggested the great potential as novel therapeutic targets or diagnostic biomarkers of CPV or other related viruses. Overall design: Two CRFK cells at 80% confluent were infected CPV-2c Laotian isolates (C22 and VTE034) and the other two were served as control by using PBS instead of viruses.