pyrifos在小丑鱼转型过程中的多层次作用
Mathieu Reynaud1, Stefano Vianello2, Shu-Hua Lee2
1Marine Eco-Evo-Devo Unit, Okinawa Institute of Science and Technology Graduate University, Onna-son, Okinawa, Japan; PSL Université Paris, EPHE-UPVD-CNRS, UAR3278 CRIOBE, 98729 Moorea, French Polynesia.
Molecular and cellular endocrinology
|April 5, 2025
概括
农业有机酸盐污染,就像酸 (CPF),也会损害海洋生物. CPF破坏甲状腺激素 (TH) 路径,损害小丑鱼的变形和白带形成,TH治疗可以挽救这些效应.
科学领域:
- 海洋生物学 海洋生物学
- 环境毒理学环境毒理学
- 内分泌学 在内分泌学.
背景情况:
- 来自农业排水的化学污染,特别是酸盐 (CPF) 等有机酸盐,威胁到海洋生态系统,包括重要的珊瑚礁.
- 珊瑚礁鱼类模型对于了解环境污染物对这些敏感息地的影响至关重要.
- 甲状腺激素 (TH) 在鱼类的发育和转化中起着至关重要的作用.
研究的目的:
- 调查pyrifos (CPF) 对小丑鱼 (Amphiprion ocellaris) 变形的影响.
- 阐明甲状腺激素 (TH) 信号通路在CPF诱导的发育障碍中的作用.
- 为了识别超越TH破坏的CPF更广泛的系统性影响.
主要方法:
- 利用小丑鱼 (Amphiprion ocellaris) 作为珊瑚礁鱼类转型的模型生物.
- 暴露于pyrifos (CPF) 的幼虫和对变形的评估影响,特别是白色带的形成和身体形状.
- 进行TH治疗以评估救援效果并确认因果关系.
- 进行了转录基因分析,以了解CPF对TH信号通路和其他生物过程的影响.
主要成果:
- 暴露于CPF显著降低了小丑鱼幼虫的TH水平,损害了对转化至关重要的白带形成.
- TH治疗成功地挽救了CPF诱导的白带形成障碍,证实了TH通路的破坏.
- 在小丑鱼转型过程中,CPF暴露对身体形状的变化产生了负面影响.
- 转录基因分析显示,CPF破坏了TH信号通路的所有组成部分.
- 此外,CPF还诱导了对胆固醇,维生素D代谢,DNA修复和免疫的TH独立的全身影响.
结论:
- pyrifos (CPF) 通过干扰甲状腺激素 (TH) 信号通路来破坏小丑鱼的变形.
- CPF对珊瑚礁鱼类发展构成重大威胁,对海洋生态系统健康产生影响.
- 该研究强调了在环境风险评估中需要考虑污染物的更广泛的系统影响,包括TH独立的影响.
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