在山羊中,METTL3通过miR-145-PCK1介导的葡萄糖生成来调节莱迪格细胞的增殖
Wen Tang1,2,3, Maosheng Cao4,5,6, Fengxin Qiao1,2,3
1Key Laboratory of Animal Genetics, Breeding and Reproduction in The Plateau Mountainous Region, Ministry of Education, Guizhou University, Guiyang, 550025, China.
Journal of animal science and biotechnology
|January 16, 2026
概括
在山羊中,METTL3/miR-145-3p/PCK1通路调节莱迪格细胞增殖和丸生长. 这种表观遗传机制影响男性的生育能力和牲畜的生殖性能.
科学领域:
- 生殖生物学 生殖生物学
- 表观遗传学 在表观遗传学中,表观遗传学是指表观遗传学.
- 分子内分泌学分子内分泌学
背景情况:
- 正常的丸发育对于家畜的男性生育能力至关重要.
- 莱迪格细胞 (LCs) 对于丸功能至关重要,但对其发育的表观遗传调节知之甚少.
- 在这个过程中,甲基转移酶类3 (METTL3) 和微RNA是新兴的调节者.
研究的目的:
- 研究METTL3在山羊莱迪格细胞发育中的作用.
- 阐明控制LC增殖和丸生长的表观遗传机制.
- 确定提高家畜雄性生殖能力的潜在目标.
主要方法:
- 在丸发育过程中对METTL3表达的定量分析.
- 对初级miR-145和成熟miR-145-3p水平的m6A修饰的评估.
- 测量PCK1表达,葡萄糖生成和线粒体膜潜力.
- 对细胞周期相关基因表达的分析 (循环B1,循环E2).
主要成果:
- 在山羊丸发育过程中,METTL3表达减少.
- 减少METTL3损害了miR-145-3p处理,导致其水平降低.
- 降低miR-145-3p上调PCK1,激活葡萄糖生成并增加线粒体潜力.
- 这种代谢转变通过细胞周期基因促进了LC的扩散和丸的生长.
结论:
- METTL3/miR-145-3p/PCK1轴是LC代谢活动和扩散的关键调节器.
- 这一途径将表观遗传修饰与雄性山羊的丸发育联系在一起.
- 这些发现为改善牲畜生殖能力提供了新的见解和潜在目标.
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