一种SOX4的修饰通过YTHDF3的识别来调节骨质细胞的增殖和分化
Zhi-Wei Feng1, Bo Peng2, Sheng-Hong Wang2
1Department of Orthopaedics, Lanzhou University Second Hospital, Lanzhou, China; Gansu Province Orthopaedic Clinical Medicine Research Center, Lanzhou, China; Gansu Province Intelligent Orthopedics Industry Technology Center, Lanzhou, China; Department of Orthopaedics, Nanchong Central Hospital, The Second Clinical Institute of North Sichuan Medical College, Nanchong, China.
Cellular signalling
|January 9, 2024
概括
甲基转移酶Like-3 (METTL3) 通过修改SOX4mRNA来调节骨的形成. 这种METTL3-m6A-SOX4-YTHDF3通路对骨质细胞功能至关重要,可能是骨质疏松症的治疗点.
科学领域:
- 分子生物学分子生物学
- 表观遗传学 在表观遗传学中,表观遗传学是指表观遗传学.
- 骨生物学 骨生物学 骨生物学
背景情况:
- N6-甲基氨酸 (m6A) 是一种关键的mRNA修饰,与骨质疏松症 (OP) 病原有关.
- 甲基转移酶Like-3 (METTL3) 是一种m6转移酶,可以减轻OP进展.
- 在骨质细胞功能中METTL3的精确机制需要进一步阐明.
研究的目的:
- 调查METTL3介导的m6A在骨质母细胞增殖和分化中的作用.
- 在骨代谢的背景下确定METTL3的下游目标.
- 探索针对METTL3途径治疗骨质疏松症的治疗潜力.
主要方法:
- 流体切割应力 (FSS) 应用于骨质母细胞.
- 甲基化RNA免疫沉降测序 (MeRIP-seq) 和转录组RNA测序 (RNA-seq).
- 淘汰和过度表达实验,RNA免疫沉 (RIP) 测定,以及在卵巢切除 (OVX) 鼠标模型中的体内研究.
主要成果:
- FSS上调 METTL3 和 m6 的修改,促进骨质母细胞功能.
- 确定SRY (性别决定区域Y) -box 4 (SOX4) 是METTL3的直接标,其mRNA稳定性通过m6A修改由METTL3调节.
- YTH N6-甲基氨酸RNA结合蛋白3 (YTHDF3) 识别了A-修饰的SOX4,调节了它的水平并影响了骨质生成.
- 在OVX小鼠模型中,SOX4过度表达逆转了骨损失.
结论:
- METTL3-m6 A-SOX4-YTHDF3轴对于调节骨质细胞的增殖和分化至关重要.
- 这一途径代表了骨质疏松病原体的新机制.
- 针对这一轴,有望为开发新的骨质疏松症疗法.
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