Genomics

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Early MicroRNA Indicators of PPARα Pathway Activation in the Liver


ABSTRACT: In this study, we measured liver miRNA in male B6C3F1 mice exposed to a known chemical activator of the peroxisome proliferator-activated receptor alpha (PPARα) pathway, di(2-ethylhexyl) phthalate (DEHP), for 7 and 28 days at concentrations of 0, 750, 1500, 3000, or 6000 ppm in feed. At the highest dose tested, DEHP altered 61 miRNAs after 7 days and 171 miRNAs after 28 days of exposure, with 48 overlapping miRNAs between timepoints. Analysis of these 48 common miRNAs indicated enrichment in PPARα targets and other pathways related to liver injury and cancer. Four of the 10 miRNAs exhibiting a clear dose trend were linked to PPARα activation: mmu-miRs-125a-5p, -182-5p, -20a-5p, and -378a-3p.

ORGANISM(S): Mus musculus

PROVIDER: GSE144988 | GEO | 2020/06/30

REPOSITORIES: GEO

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