氨酸68依赖甲基化的SOX9稳定性控制调节牙髓干细胞中原体差异化
Qiannan Sun1,2, Zimeng Zhuang1,2, Rushui Bai1,2
1Department of Orthodontics, Peking University School and Hospital of Stomatology, Beijing, 100081, China.
Advanced science (Weinheim, Baden-Wurttemberg, Germany)
|June 30, 2023
概括
基斯修饰酶KDM3A和G9A通过使用牙髓干细胞 (DPSC) 调节软骨组织工程. 它们控制SOX9蛋白水平,从而影响DPSC的体生成,从而具有潜在的治疗用途.
科学领域:
- 生物化学 生物化学
- 细胞生物学 细胞生物学
- 再生医学是一种再生医学.
背景情况:
- 牙纸干细胞 (DPSCs) 由于其可访问性和差异化潜力,对软骨组织工程具有前景.
- 在DPSCs中,对体发生的表观遗传调节尚未完全理解,这限制了它们的临床应用.
研究的目的:
- 阐明控制DPSCs中chondrogenic分化的表观遗传机制.
- 为了研究基因组修饰酶KDM3A和G9A在DPSC原生成中的作用.
- 探索KDM3A和G9A对SOX9稳定性的调节.
主要方法:
- 转录学分析以确定关键的表观遗传调节者.
- 实验室和体内功能测试,以评估KDM3A和G9A对DPSC冠状体生成的影响.
- 机理学研究涉及无化和脱甲基化试验,以确定SOX9调节.
主要成果:
- 通过控制SOX9蛋白水平,KDM3A和G9A通过对抗作用来调节DPSC原体的发生.
- 通过脱甲基化素68,KDM3A通过增强SOX9稳定性来促进基生成.
- G9A通过通过氨酸68.8甲基化促进SOX9降解来抑制基生成.
结论:
- KDM3A和G9A是SOX9稳定性和DPSC基生成的关键表观遗传调节者.
- 针对KDM3A或G9A,例如用G9A抑制剂BIX-01294进行向,可以增强原体的分化.
- 这些发现为改进基于DPSC的软骨组织工程疗法提供了理论基础.
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