Integrated Analysis of miRNA and mRNA Expression Profiles in Spleen of Specific Pathogen-Free Chicken Infected with Avian Reticuloendotheliosis Virus Strain SNV

International Journal of Molecular Sciences
Shuo GaoJingdong Hu

Abstract

The Reticuloendotheliosis virus (REV) primarily causes avian severe immunosuppression, in addition to other symptoms, which include avian dwarfing syndrome and chronic tumors in lymphoid and other tissue. To date, REV's molecular mechanisms leading to immunosuppression have not been fully elucidated. In the current study, we aimed to elucidate the role of microRNAs (miRNA) in regulating gene expression during REV infections. Therefore, we used a high-dose spleen necrosis virus (SNV) model of REV to inoculate one-day-old specific pathogen-free (SPF) chickens, thereby inducing congenital infections. We analyzed miRNA and mRNA expression profiles using Next Generation Sequencing (NGS) in a total of 19 spleen samples that were collected at 7, 14, and 21 days post infection (dpi). The results showed that 63 differentially expressed miRNAs (DEmiRNAs) (30 known miRNAs and 33 novel miRNAs) and 482 differentially expressed target genes (DETGs) were identified. Integration analysis identified 886 known miRNA⁻mRNA and 580 novel miRNA⁻mRNA interaction pairs, which involved miRNAs that were inversely correlated with the above DETGs. Kyoto Encyclopedia of Genes and Genomes (KEGG) enrichment analysis revealed that the DETGs were considerably ...Continue Reading

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Citations

Jan 5, 2021·Frontiers in Veterinary Science·Silvia MirettiMario Baratta

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Datasets Mentioned

BETA
DQ003591.1

Methods Mentioned

BETA
Infection
PCR
Assay

Software Mentioned

TargetScan prediction
Cutadapt
GOslim
Oligo
MiRdeep2
TargetScan
OmicShare
DESeq
GraphPad Prism
Cytoscape

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