在哺乳动物中,CCDC89是最佳精子运动和男性生育能力所必需的
Moira K O'Bryan1,2, Gülizar Saritas3,4,5, Joseph Nguyen1
1School of BioSciences and Bio21 Molecular Sciences and Biotechnology Institute, The University of Melbourne, Parkville, Australia.
Human reproduction (Oxford, England)
|July 1, 2025
概括
卷曲-卷曲域含有蛋白89 (CCDC89) 对于正常的精子运动和小鼠的雄性生育能力至关重要. 在CCDC89的遗传变异影响小鼠和人类的精子生产,表明其在男性不孕症中的作用.
科学领域:
- 生殖生物学 生殖生物学
- 遗传学 是一个遗传学.
- 分子生物学分子生物学
背景情况:
- 卷曲-卷曲域含有蛋白质参与关键的细胞过程,包括细胞分裂和精子运动.
- 了解这些蛋白质的特定作用对于生殖健康研究至关重要.
研究的目的:
- 在哺乳动物雄性生育中,研究卷状卷状域含蛋白89 (CCDC89) 的功能.
- 确定CCDC89遗传变异对精子生成和精子功能的影响.
主要方法:
- 不孕男性的整体外基因组测序,以识别CCDC89变种.
- 产生和分析Ccdc89淘汰赛和突变小鼠模型.
- 评估男性生育能力参数,包括精子运动性,组织学和体外受精.
主要成果:
- Ccdc89淘汰赛小鼠表现出子生育能力,由于硬硬的精子尾部中间部,精子运动能力受损.
- 在不孕男性中发现了一种特定的CCDC89变体 (c.G903T),并且在小鼠模型中显示可能会损害精子生成.
- 在丸组织中分析了CCDC89RNA表达和蛋白质定位.
结论:
- CCDC89对于调节精子尾部波形至关重要,对受精能力和男性生育能力至关重要.
- CCDC89变种可以损害精子生成,并代表男性不孕症的潜在风险因素在哺乳动物,包括人类.
- 需要对更大的队列和临床数据进行进一步验证,以确认CCDC89变异的预后可靠性.
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