黑素通过准CXCL14通过miR-7481-3pp来抑制的莱迪格细胞中的激素合成
Haoran Xu1,2, Jingxin Pu1,2, Yunkun Teng1,2
1Key Lab of Animal Production, Product Quality and Security, Ministry of Education, Jilin Agricultural University, Changchun 130118, China.
International journal of molecular sciences
|December 9, 2023
概括
Melatonin 通过调节 miR-7481-3p 和 CXCL14. 的作用来抑制公 Leydig 细胞中丸激素的合成. 这种机制涉及PI3K/AKT通路,为男性生殖健康提供了洞察力.
科学领域:
- 内分泌学 在内分泌学.
- 分子生物学分子生物学
- 生殖科学 生殖科学
背景情况:
- 黑色素在合成中的作用已确立,但其在莱迪格细胞中的精确机制,特别是涉及微RNA (miRNA),仍然不清楚.
- 莱迪格细胞对于男性的丸激素生产至关重要.
研究的目的:
- 阐明黑素影响子莱迪格细胞中丸激素合成的机制,重点关注miRNA调节.
- 为了识别特定的miRNA及其点参与黑激素对莱迪格细胞的作用.
主要方法:
- 用RNA测序 (RNA-seq) 和miRNA测序来识别关键分子.
- 双露西法酶记者测定证实了miR-7481-3p和CXCL14之间的向关系.
- 对miR-7481-3p和CXCL14.4进行过度表达和干扰研究.
- 西方涂抹评估了蛋白质表达和信号通路激活 (PI3K/AKT).
主要成果:
- 黑色素显著抑制了的莱迪格细胞中的丸激素合成.
- 确定miR-7481-3p是黑激素的标,直接调节CXCL14的表达.
- 过度表达miR-7481-3p和干扰CXCL14模仿并逆转黑激素对的合成和类固醇酶 (StAR,CYP11A1,3β-HSD) 的抑制作用.
- 黑色素激活PI3K/AKT通路,这种效应由CXCL14调节.
结论:
- 黑色素通过准miR-7481-3p/CXCL14轴来抑制公莱迪格细胞中的丸激素合成.
- 在这个过程中,PI3K/AKT信号通路是关键的中间体.
- 这项研究为黑激素调节莱迪格细胞功能提供了一个新的分子机制.
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