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与自相关的蛋白质影响小鼠的流行性精子运动性
Lorena Rodríguez-Páez1, Jonathan J Magaña2,3, Charmina Aguirre-Alvarado1,4
1Laboratorio de Bioquímica Farmacológica, Departamento de Bioquímica, Escuela Nacional de Ciencias Biológicas, Instituto Politécnico Nacional, Prol. Carpio y Plan de Ayala, Col. Santo Tomás, Mexico City 11340, Mexico.
International journal of molecular sciences
|December 30, 2025
概括
鼠标精子可能会在电容过程中启动细胞循环过程的自,细胞循环过程. 自蛋白质LC3,p62/SQSTM1和mTOR动态转移,影响精子运动和体反应.
科学领域:
- 细胞生物学 细胞生物学
- 生殖生物学 生殖生物学
- 自学研究 自学研究
背景情况:
- 自是一种重要的细胞过程,用于回收组件并维持平衡.
- 哺乳动物精子中自的作用和机制,特别是小鼠外皮膜精子,仍然在很大程度上未被探索.
- 关键的自标志物如LC3,p62/SQSTM1和mTOR对于理解自流动至关重要.
研究的目的:
- 为了调查自标志物 (LC3,p62/SQSTM1,mTOR) 在缩过程中的小鼠外皮膜精子中的存在和动态变化.
- 评估这些与自相关的蛋白质对精子生理学的功能意义,包括生命力,运动性和体反应.
- 评估使用抑制剂 (chloroquine,K67) 和激活剂 (rapamycin) 的自调节对精子功能的影响.
主要方法:
- 西部涂抹检测LC3,p62/SQSTM1和mTOR蛋白质水平在鼠标外皮膜精子.
- 对精子参数的分析:生命力,运动性,细胞内pH值,细胞内,线粒体膜潜力和体反应诱导.
- 使用克洛洛昆 (CQ),K67和拉巴胺素调节自途径的药理疗法.
主要成果:
- 自标志物LC3,p62/SQSTM1和mTOR在电容条件下在小鼠精子中表现出动态重新定位.
- 自抑制剂 (CQ,K67) 降低了LC3-II和p62/SQSTM1水平,而拉巴胺并没有增加mTOR水平.
- 抑制剂治疗导致精子运动性降低,线粒体膜潜能降低,和损伤的体反应诱导,而不会影响精子的生命力.
结论:
- 鼠标外皮膜精子拥有初始自步骤的机械,通过在电容化过程中动态存在和重定位关键的自蛋白来证明这一点.
- 与自相关的蛋白质在调节精子运动和体反应诱导方面发挥着重要作用.
- 自的药理抑制对关键的精子功能产生负面影响,突出显示了自对男性生育能力的重要性.
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