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首页> 外文期刊>Environmental toxicology and chemistry >Integrated in silico and in vivo approaches to investigate effects of BDE-99 mediated by the nuclear receptors on developing zebrafish
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Integrated in silico and in vivo approaches to investigate effects of BDE-99 mediated by the nuclear receptors on developing zebrafish

机译：整合的计算机和体内方法研究由核受体介导的BDE-99对发育中的斑马鱼的影响

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摘要

One of the most abundant polybrominated diphenyl ethers (PBDEs) is 2,2,4,4,5-pentabromodiphenyl ether (BDE-99), which persists and potentially bioaccumulates in aquatic wildlife. Previous studies in mammals have shown that BDE-99 affects development and disrupts certain endocrine functions through signaling pathways mediated by nuclear receptors. However, fewer studies have investigated the potential of BDE-99 to interact with nuclear receptors in aquatic vertebrates such as fish. In the present study, interactions between BDE-99 and nuclear receptors were investigated by in silico and in vivo approaches. This PBDE was able to dock into the ligand-binding domain of zebrafish aryl hydrocarbon receptor 2 (AhR2) and pregnane X receptor (PXR). It had a significant effect on the transcriptional profiles of genes associated with AhR or PXR. Based on the developed cytoscape of all zebrafish genes, it was also inferred that AhR and PXR could interact via cross-talk. In addition, both the in silico and in vivo approaches found that BDE-99 affected peroxisome proliferator-activated receptor alpha (PPAR), glucocorticoid receptor, and thyroid receptor. Collectively, our results demonstrate for the first time detailed in silico evidence that BDE-99 can bind to and interact with zebrafish AhR and PXR. These findings can be used to elaborate the molecular mechanism of BDE-99 and guide more objective environmental risk assessments. Environ Toxicol Chem 2018;37:780-787. (c) 2017 SETAC
机译：最丰富的多溴联苯醚（PBDEs）之一是2,2,4,4,5-五溴二苯醚（BDE-99），它在水生野生生物中持续存在并可能生物蓄积。先前在哺乳动物中的研究表明，BDE-99通过核受体介导的信号传导途径影响发育并破坏某些内分泌功能。但是，很少有研究调查BDE-99与水生脊椎动物（例如鱼类）中的核受体相互作用的潜力。在本研究中，通过计算机和体内方法研究了BDE-99与核受体之间的相互作用。该多溴二苯醚能够停靠在斑马鱼芳烃受体2（AhR2）和孕烷X受体（PXR）的配体结合域中。它对与AhR或PXR相关的基因的转录谱有重要影响。基于所有斑马鱼基因的发达的细胞景观，还推断AhR和PXR可以通过串扰相互作用。另外，计算机方法和体内方法均发现BDE-99影响过氧化物酶体增殖物激活受体α（PPAR），糖皮质激素受体和甲状腺受体。总的来说，我们的结果首次在计算机上证明了BDE-99可以与斑马鱼AhR和PXR结合并相互作用的详细证据。这些发现可用于阐述BDE-99的分子机制，并指导更客观的环境风险评估。 Environ Toxicol Chem 2018; 37：780-787。 （c）2017年SETAC

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  • 来源
    《Environmental toxicology and chemistry》 |2018年第3期|780-787|共8页
  • 作者

    Zhang Li; Jin Yaru; Han Zhihua; Liu Hongling; Shi Laihao; Hua Xiaoxue; Doering Jon A.; Tang Song; Giesy John P.; Yu Hongxia;

  • 作者单位

    Nanjing Univ, Sch Environm, State Key Lab Pollut Control & Resource Reuse, Nanjing, Jiangsu, Peoples R China;

    Nanjing Univ, Sch Environm, State Key Lab Pollut Control & Resource Reuse, Nanjing, Jiangsu, Peoples R China;

    Nanjing Univ, Sch Environm, State Key Lab Pollut Control & Resource Reuse, Nanjing, Jiangsu, Peoples R China|Minist Environm Protect China, Nanjing Inst Environm Sci, Nanjing, Jiangsu, Peoples R China;

    Nanjing Univ, Sch Environm, State Key Lab Pollut Control & Resource Reuse, Nanjing, Jiangsu, Peoples R China;

    Nanjing Univ, Sch Environm, State Key Lab Pollut Control & Resource Reuse, Nanjing, Jiangsu, Peoples R China;

    Minist Environm Protect China, Nanjing Inst Environm Sci, Nanjing, Jiangsu, Peoples R China;

    Univ Saskatchewan, Toxicol Ctr, Saskatoon, SK, Canada;

    Univ Saskatchewan, Sch Environm & Sustainabil, Saskatoon, SK, Canada;

    Nanjing Univ, Sch Environm, State Key Lab Pollut Control & Resource Reuse, Nanjing, Jiangsu, Peoples R China|Univ Saskatchewan, Toxicol Ctr, Saskatoon, SK, Canada|Univ Saskatchewan, Dept Vet Biomed Sci, Saskatoon, SK, Canada;

    Nanjing Univ, Sch Environm, State Key Lab Pollut Control & Resource Reuse, Nanjing, Jiangsu, Peoples R China;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);美国《生物学医学文摘》(MEDLINE);美国《化学文摘》(CA);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    Aryl hydrocarbon receptor; Pregnane X receptor; Cross-talk; Docking; Molecular dynamic simulation;

    机译：芳烃受体;孕烷X受体;相声;对接;分子动力学模拟;

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