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Gene networks and toxicity/detoxification pathways in juvenile largemouth bass (Micropterus salmoides) liver induced by acute lead stress

机译:急性铅胁迫诱导的少年大嘴巴鲈鱼(Micropterus Salmoides)肝脏的基因网络和毒性/解毒途径

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Lead (Pb) is a nonessential heavy metal that can be bioconcentrated to highly toxic levels in the environment. To understand the genes and toxicity/detoxification pathways of juvenile largemouth bass, liver transcriptomes were investigated in this fish after acute 96?h Pb exposure (Pb nitrate 0, 17.8, or 100?mg/L). Acute Pb exposure induced an immune response and apoptosis pathway activation in the liver. A number of transcripts related to complement and coagulation cascades were significantly increased. Up- and downregulated genes were significantly enriched in numerous pathways, including the natural killer cell-mediated cytotoxicity pathway, the Jak-STAT and P53 signaling pathways, cancer and apoptosis. These genes included Bid,Bcl-2, JNK, and PI3K (17.8?mg/L) and PI3K, AKT, PPARδ, RAS, MMPs, c-Jun p53, and PD-L1 (100?mg/L). Comprehensive analysis of liver transcriptomic data revealed numerous pathways associated with the immune system and carcinogenesis, especially pathways related to apoptosis and systemic lupus erythematosus.
机译:铅(PB)是一种非态性重金属,可生物浓度在环境中具有高度毒性水平。为了了解少年血缘鲈的基因和毒性/解毒途径,在急性96ΩHPB暴露后在该鱼中研究了肝脏转录om(Pb硝酸盐0,17.8或100?mg / L)。急性Pb暴露诱导肝脏中免疫应答和凋亡途径激活。与补体和凝血级联相关的一些转录物显着增加。在许多途径中显着富集,包括自然杀手细胞介导的细胞毒性途径,JAK-STAT和P53信号传导途径,癌症和凋亡的升高的基因。这些基因包括BID,BCL-2,JNK和PI3K(17.8〜Mg / L)和PI3K,AKT,PPARδ,RA,MMP,C-JUM P53和PD-L1(100?Mg / L)。肝脏转录组数据综合分析显示了与免疫系统和致癌物相关的许多途径,特别是与细胞凋亡和系统性红斑狼疮有关的途径。

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