蛋白质组分析揭示了雅克卵细胞在不同 meiois 阶段蛋白质表达的变化
Shaoke Guo1, Ziqiang Ding1, Liyan Hu1
1Key Laboratory of Yak Breeding in Gansu Province, Lanzhou Institute of Husbandry and Pharmaceutical Sciences, Chinese Academy of Agricultural Sciences, Lanzhou 730050, China; Key Laboratory of Animal Genetics and Breeding on Tibetan Plateau, Ministry of Agriculture and Rural Affairs, Lanzhou 730050, China.
International journal of biological macromolecules
|April 5, 2025
概括
这项研究在成熟过程中特征了雅克卵细胞蛋白质组,确定了参与生殖囊泡分解和细胞周期调节的关键蛋白质. 这些发现提供了通过体外成熟来提高雅克繁殖效率的见解.
科学领域:
- 生殖生物学 生殖生物学
- 蛋白质组学是指蛋白质组学.
- 动物科学动物科学
背景情况:
- 卵细胞成熟对于繁殖至关重要,涉及复杂的分子相互作用.
- 在成熟期间,雅克卵细胞的蛋白质组在很大程度上仍然没有特征.
- 了解这些分子动力学对于提高雅克生殖效率至关重要.
研究的目的:
- 为了全面描述雅克卵细胞在整个成熟过程中的蛋白质组.
- 为了确定关键的蛋白质和途径,涉及生殖囊泡分解 (GVBD) 和随后的介质阶段.
- 为优化雅克卵细胞体外成熟协议提供基础.
主要方法:
- 使用4D数据独立获取 (DIA) 技术进行蛋白质组测序.
- 分析了四个不同的成熟阶段的雅克卵细胞:生殖囊泡 (GV),GV分解 (GVBD),半变 I (MI) 和半变 II (MII).
- 使用生物信息分析和并行反应监测 (PRM) 进行验证.
主要成果:
- 鉴定了5851种蛋白质,揭示了卵细胞成熟期间的动态变化.
- 观察到从GV到GVBD的蛋白质激活,随后从MI到MII的广泛下调.
- 在能量代谢蛋白中,GV卵细胞显示丰富;在酶抑制剂中,GVBD卵细胞;在质蛋白和细胞循环调节剂中,MII卵细胞.
- 发现了酸化和泛化酶的动态变化.
结论:
- 这项研究提供了雅克卵细胞成熟的第一个全面的蛋白质组景观.
- 确定了特定阶段的蛋白质配置文件和动态调节酶活动.
- 这些发现对于理解鱼卵细胞成熟机制和提高体外成熟效率来改善鱼繁殖至关重要.
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