双甲基乙醇诱导的DNA甲基化异常可能会扰乱成年雄性斑马鱼的丸发育
Eui-Jin Lee1, Hyojin Lee2, Jiyun Kang3
1Institute for Catholic Integrative Medicine, Incheon St. Mary's Hospital, The Catholic University of Korea, Incheon, Republic of Korea.
Environmental analysis, health and toxicology
|November 20, 2025
概括
双甲基乙烯 (BADGE) 暴露会通过改变DNA甲基化来影响斑马鱼的雄性生殖. 这种表观遗传变化会影响胰岛素信号传递,并增加类固醇酶的表达,可能会破坏男性的生育能力.
科学领域:
- 生殖毒理学 生殖毒理学
- 表观遗传学 在表观遗传学中,表观遗传学是指表观遗传学.
- 内分泌学 在内分泌学.
背景情况:
- 双甲二甲基乙烯 (BADGE) 在工业应用中广泛使用.
- 新出现的证据表明,BADGE可能会对男性生殖健康产生负面影响.
- BADGE对男性生殖的影响的确切机制尚未完全理解.
研究的目的:
- 为了研究BADGE暴露对成年斑马鱼性腺体类固醇生成的影响.
- 探索DNA甲基化变化的作用,以调解BADGE对男性生殖功能的影响.
主要方法:
- 成年雄性斑马鱼被暴露在10微米BADGE中21天.
- 采用全基因组双硫酸盐测序来识别差异甲基化区域 (DMR).
- 量化逆转录聚合酶链反应 (qRT-PCR) 用于分析类固醇酶和相关途径的基因表达水平.
主要成果:
- 暴露于BADGE导致了显著的DNA甲基化变化,确定了2,673个差异甲基化位点.
- 途径分析显示了DMR和关键信号通路之间的关联,包括胰岛素信号和分叉箱O信号通路.
- 治疗BADGE显著提高了胰岛素受体基质1 (irs1) 和关键类固醇酶的表达.
结论:
- 暴露于BADGE可以直接影响斑马鱼的类固醇生成.
- 表观遗传修饰,特别是像irs1这样的胰岛素信号通路中的DNA甲基化,可能会导致BADGE诱导的生殖性改变.
- 这些发现突出了潜在的表观遗传机制,将环境化学物质暴露与男性生殖功能障碍联系起来.
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