Translation, ribosome biogenesis, and oxidative damage caused by chlorpyrifos exposure to common carp (Cyprinus carpio L.) liver: application of combined RNA-seq with sRNA-seq in risk evaluation of environmental toxicant chlorpyrifos
2021
Pesticide chlorpyrifos (CPF) is a widespread environmental pollutant gaining attention as it is highly injurious to aquatic life. Although the toxicity of CPF is well characterized, but the mechanism of toxic response especially, the hepatotoxicity remained unclear. In this study, we performed integrated analysis, including micro-RNA (miRNA) and small RNA (sRNA) to analyze CPF exposure responding genes and enrichment pathways. A total of 23,742 expressed genes were detected and out of these expression levels of 1746 were changed significantly. Majority of them participated in protein biosynthesis, nucleotide binding, and oxidation-reduction activities. In extensive analysis of micro-RNA (miRNA) expression profiles by comparing CPF treated carp with control, we identified 214 novel miRNAs with CPM > 5 in at least one sample. The miRNAs have the same change in direction compared with overlapped mRNA pairs in upregulated genes, suggesting potential positive correlation. As a whole, we detected many differently expressed genes (DEGs) and miRNAs, which may be used as the biomarkers for the detection of CPF pollution in water and aquatic product safety. However, their functions are required to be deeply analyzed, especially more samples or time pointed data are needed to illustrate their concrete mechanism.
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