通过HNRNPA2B1介导的m6A修改增强了ncRNA NORHA的稳定性,以控制颗粒细胞功能
Chun-Xue Zhou1, Si-Qi Wang1, Ji-Yu Zhang1
1College of Animal Science and Technology, Nanjing Agricultural University, Nanjing, Jiangsu 210095, China.
Zoological research
|May 23, 2025
概括
N6-甲基氨酸 (m6A) 修饰调节NORHA,一个长的非编码RNA,在母猪颗粒细胞中. 这种RNA修饰通过控制细胞亡和激素生物合成来影响卵泡缩.
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:
- 诺哈,一个长非编码RNA (lncRNA),通过粒粉细胞 (GC) 亡诱导母猪的毛囊缩.
- 目前尚不清楚N6-甲基氨酸 (m6A) 修饰对NORHA的调节作用.
研究的目的:
- 通过在母猪GCs (sGCs) 中进行m6A修饰来研究NORHA的调节机制.
- 阐明m6A阅读器HNRNPA2B1在NORHA调节中的作用及其对sGC功能的影响.
主要方法:
- 对RNA修饰部位的全转录组映射.
- RNA免疫沉 (RIP) 试验证实HNRNPA2B1与NORHA.结合.
- 对NORHA-FoxO1轴及其对CYP19A1表达和17β-雌二醇 (E2) 生物合成的影响的分析.
主要成果:
- 在sGC中,NORHA被确定为m6A阅读器HNRNPA2B1的直接目标.
- HNRNPA2B1与NORHA结合,通过m6A修饰增强其稳定性,并激活NORHA-FoxO1轴.
- 这个轴通过抑制CYP19A1抑制E2生物合成,并促进sGC亡.
- HNRNPA2B1调解了依赖METTL3的m6A修饰,影响NORHA的表达和活性.
结论:
- 这项研究揭示了一个依赖m6A的调节通路,它控制了sGCs中的NORHA表达.
- 诺哈的HNRNPA2B1介导的m6A修饰通过影响GC亡和类固醇生成,在调节卵泡缩方面发挥着至关重要的作用.
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