Transcriptome changes of Takifugu obscurus liver after acute exposure to phenanthrene

文献类型： 外文期刊

第一作者： Jiang, Shu-Lun

作者： Jiang, Shu-Lun;Fang, Di-An;Xu, Dong-Po

作者机构：

关键词： KEGG pathway; PAHs; phenanthrene; Takifugu obscurus; transcriptome

期刊名称：PHYSIOLOGICAL GENOMICS （ 影响因子：2.749； 五年影响因子：3.172 ）

ISSN： 1094-8341

年卷期： 2021 年 53 卷 3 期

页码：

收录情况： SCI

摘要： Phenanthrene (Phe) is a model compound in polycyclic aromatic hydrocarbon (PAH) research. Reportedly, Phe treatment induced oxidative stress and histological disorders to Takifugu obscurus liver. In this study, to further explore the molecular responses of T. obscurus liver to Phe exposure, transcriptome sequencing was applied to compare mRNA transcription profiles between Phe treatment and the control. Compared with the control, 1,581 and 1,428 genes were significantly upregulated and downregulated in Phe treatment, respectively. Further analysis revealed that Phe treatment mainly upregulated genes in Ras-MAPK and PI3K-akt signaling pathways, which represented insulin resistance and further activated the FOXO signaling pathway. The triacylglycerol biosynthesis was promoted but the gluconeogenesis process was inhibited in response to Phe treatment, demonstrating that Phe exposure disturbed the sugar and lipid metabolism. Moreover, Phe treatment upregulated the Apelin-APJ and ErbB signaling pathways, promoting angiogenesis in T. obscurus liver. Insulin resistance, promoted triacylglycerol biosynthesis, and angiogenesis might explain the molecular mechanisms underlying carcinogenic toxicity of Phe. Overall, this study provides new insights to understand the environmental risk of Phe to fishes.

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