甲状腺激素系统破坏性化学物质的发育神经毒性:使用多omics方法进行系统级探索
Naïs Clavel Rolland1, Sonia Dagnino2, Pierre-Maxence Vaysse1
1Bayer Crop Science, Sophia Antipolis, France.
Archives of toxicology
|February 7, 2026
概括
甲状腺激素系统破坏性化学物质 (THSDCs) 可以影响后代的大脑发育. 这项研究使用多组学来分析PTU和PCN的影响,发现PTU引起显著的神经毒性,而PCN显示最小的不良影响.
科学领域:
- 环境毒理学环境毒理学
- 神经科学是一个神经科学.
- 内分泌学 在内分泌学.
背景情况:
- 甲状腺激素系统破坏性化学物质 (THSDCs) 对神经发育的关注越来越大.
- 了解THSDCs如何改变母体甲状腺平衡和后代大脑发育至关重要.
研究的目的:
- 为了研究5-propyl-2-thiouracil (PTU) 和pregnenolone-16α-carbonitrile (PCN) 对母亲甲状腺激素水平和后代大脑发育的影响.
- 通过多omics方法阐明THSDC诱导的神经发育毒性背后的分子机制.
主要方法:
- 怀孕的老鼠从妊娠第6天到产后第21天暴露在PTU或PCN中.
- 在母体和后代中评估了循环和大脑甲状腺激素水平,酶活性和细胞病理学.
- 在甲状腺,肝脏和大脑组织上利用多种omics (蛋白质学,代谢学,空间转录学).
主要成果:
- PTU暴露导致严重的甲状腺激素枯竭和后代的结构性大脑异常.
- PCN主要诱导肝酶活性,对循环的甲状腺激素的影响最小.
- 多omics揭示了能量代谢和细胞骨组织中的融合大脑干扰,PTU更严重.
结论:
- 多omics分析有效地确定了THSDC暴露的分子特征.
- PTU显示出显著的神经发育毒性,而PCN显示出更安全的特征.
- 这种综合方法对于评估THSDC神经毒性和了解潜在机制是有价值的.
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