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甲基胺暴露对塞尔托利细胞的细胞毒性:一项试点研究对男性不孕症有影响
David Fisher1,2, Omar Zabida1, Sahar Abdul-Rasool1
1Department of Medical Bioscience, Faculty of Natural Science, University of the Western Cape, Bellville, South Africa.
Drug and chemical toxicology
|March 4, 2025
概括
甲基胺暴露会损害男性生育能力,因为它会损害塞尔托利细胞,影响精子生产. 即使是短期使用也可能导致长期的生殖问题,并影响血屏障.
科学领域:
- 生殖生物学 生殖生物学
- 毒理学 毒理学 毒理学
- 细胞生物学 细胞生物学
背景情况:
- 甲基胺 (Meth) 与丸体重和精子数量降低有关,这表明它在男性不孕症中起作用.
- 塞尔托利细胞对于精子生成和维持丸微环境至关重要.
研究的目的:
- 调查甲胺对TM4塞尔托利细胞活力,毒性,增殖,线粒体活性和血液丸屏障透性的影响.
- 要区分急性 (娱乐性) 和慢性 (成性) 甲基暴露对塞尔托利细胞的影响.
主要方法:
- TM4 塞尔托利细胞在急性 (24小时) 和慢性 (24-96小时) 期间暴露于甲基 (0.1-100μM).
- 细胞活力,毒性和增殖被评估使用试蓝色排除试验.
- 线粒体活性 (MA) 通过XTT测定进行测量,并使用体电阻 (TEER) 检查单层透性.
主要成果:
- 长期暴露于甲会降低塞尔托利细胞活力,并以剂量依赖的方式增加毒性.
- 无论是急性还是慢性,Meth暴露都抑制了细胞分裂和线粒体活动,在更高度下.
- 甲基胺暴露破坏了血液丸屏障的透性,其影响持续长达96小时.
结论:
- 甲基胺通过涉及塞尔托利细胞功能障碍和损害血液丸屏障完整性的机制诱导男性不孕.
- 无论是急性还是慢性甲暴露,都可能对男性生殖健康产生不利的长期影响.
- 这些发现凸显了甲基胺对男性生育能力的重大风险,即使是短期暴露.
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