奥克拉托辛C诱导斑马鱼胚胎神经发育缺陷和脑出血通过降低Notch信号的调节
Boxi Hu1, Dou Yang1, Qiang Yuan1
1Jiangxi Engineering Laboratory of Zebrafish Modeling and Drug Screening for Human Diseases, Jiangxi Key Laboratory of Developmental Biology of Organs and Epigenetics, Key Laboratory of Jiangxi Province for Biological Invasion and Biosecurity, Clinical Research Center of Affiliated Hospital of Jinggangshan University, College of Life Sciences, Jinggangshan University, Ji'an, Jiangxi 343009, China.
Journal of environmental sciences (China)
|March 1, 2026
概括
奥克拉托辛C (OTC) 通过抑制Notch信号,导致斑马鱼胚胎的神经发育问题和脑出血. 恢复Notch信号部分扭转了这些有毒效应,突出了OTC信号.
科学领域:
- 毒理学 毒理学 毒理学
- 发展生物学 发展生物学
- 神经科学是一个神经科学.
背景情况:
- 毒素C (OTC) 是一种在成作物和家禽中发现的真菌毒素,有很大程度上不具特征的毒性.
- 斑马鱼胚胎是评估早期发育过程中化学毒性的敏感模型.
研究的目的:
- 为了研究斑马鱼胚胎中Ochratoxin C (OTC) 的神经毒性.
- 阐明了OTC诱导的发育缺陷背后的分子机制.
主要方法:
- 斑马鱼胚胎被暴露在OTC中以评估发育参数和行为变化.
- 分析了神经递质和基因表达,氧化应激,酶活性 (AChE,ATPase) 和亡.
- 使用转录试验和转基因模型评估了痕信号通路活性;分子对接确定了OTC的绑定目标.
主要成果:
- 场外暴露导致身体长度减少,化异常,黄囊面积增加,尾部翻动频率降低.
- 具体影响包括脑出血,运动行为缺陷,神经递质水平变化,氧化应激增加和亡.
- 经过OTC抑制的Notch信号,SLC22A6被确定为潜在的结合标; propionate部分挽救了缺陷.
结论:
- 奥克拉托辛C (OTC) 在斑马鱼胚胎中诱导显著的神经发育缺陷和脑出血.
- 抑制Notch信号通路是OTC毒性的一个关键机制.
- 这项研究强调了OTC暴露的潜在神经发育风险.
相关概念视频
03:14Notch Signaling Pathway
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