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暴露于3-甲基-4-基醇会通过诱导不稳定性和线粒体功能障碍来降低卵细胞成熟
Fan Chen1, An-Feng Luo1, Ming-Guo Li1
1Key Laboratory of Animal Embryo Engineering and Molecular Breeding of Hubei Province, Institute of Animal Sciences and Veterinary Medicine, Hubei Academy of Agricultural Sciences, Wuhan 430070, China.
International journal of molecular sciences
|April 13, 2024
概括
环境污染物3-甲基-4-二醇 (PNMC) 通过破坏螺旋体稳定性和线粒体功能,损害了小鼠卵细胞的成熟,导致细胞亡. 这项研究突出了PNMC的重点.
科学领域:
- 生殖毒理学 生殖毒理学
- 环境健康 环境健康
- 细胞生物学 细胞生物学
背景情况:
- 3-甲基-4-二醇 (PNMC) 是一种广泛存在的环境污染物,在柴油废气和杀虫剂降解中发现.
- 众所周知,PNMC对女性生殖系统有毒.
- PNMC对卵细胞半细胞分裂进展的具体影响仍然基本上未知.
研究的目的:
- 在实验室中研究PNMC对小鼠卵细胞成熟的有害影响.
- 阐明PNMC诱导的卵细胞功能障碍背后的机制,重点关注线稳定性和线粒体功能.
主要方法:
- 在实验室中成熟的小鼠卵细胞.
- 评估线形态和稳定性的评估.
- 分析线粒体分布,膜潜力,ATP生产和活性氧物种 (ROS) 水平.
- 测量线粒体相关基因的mRNA水平.
- 早期亡标志物的评估.
主要成果:
- 暴露于PNMC显著影响了卵细胞成熟.
- PNMC 干扰了螺旋的稳定性,密度下降和长度增加,可能涉及Fignl1酶.
- 观察到显著的线粒体功能障碍,包括改变分布,减少ATP产生,减少膜潜力和增加ROS.
- 已注意到线粒体相关基因的mRNA水平受损.
- 由PNMC诱导的变化引发了卵细胞的早期亡.
结论:
- 暴露于PNMC会对卵细胞成熟和质量产生负面影响.
- 通过影响子稳定性和线粒体功能,PNMC会破坏卵细胞质量.
- 这些细胞功能障碍最终导致卵细胞亡.
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