Comparative expression profiles of host circulating miRNAs in response to Trichinella spiralis infection

Veterinary Research
Xiao Han MaLiang Ming

Abstract

Trichinellosis is an important food-borne parasitic zoonosis throughout the world. At present, the mechanisms of Trichinella spiralis infection remain unclear. Acquiring detailed information on the host-Trichinella interaction would be beneficial for the development of new strategies for trichinellosis control. Circulating miRNAs are stably detectable in the blood of humans and animals infected with parasites. Circulating miRNAs might regulate the expression of target genes in pathological responses during infection and might be novel potential biomarkers of parasitic diseases. In the present study, a total of ten differentially expressed circulating mouse miRNAs with |log2(fold change)| ≥ 1.0 and FDR < 0.01 were found during T. spiralis infection, of which five were upregulated and five were downregulated. GO and KEGG analyses showed that the target genes of the ten miRNAs were enriched in many signalling pathways, especially focal adhesion, MAPK pathway, and so on. The results of qRT-PCR showed that among the five upregulated miRNAs, mmu-miR-467a-3p and mmu-miR-467d-3p expression in mouse serum reached a peak at 30 days post-infection (dpi). The expression of mmu-miR-376b-3p and mmu-miR-664-3p increased significantly at 18 dp...Continue Reading

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Methods Mentioned

BETA
electrophoresis
PCR
reverse transcription PCR
serum collection
PCRs
RNA-seq

Software Mentioned

miRanda
Rfam
Primer
SOAP
miRDeep2
TargetScan
Bowtie
PITA
RNAhybrid
Solexa

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