在C2C12神经管中调节甲状腺激素介导的基因网络中THRAP3的功能作用
Taku Fukushima1, Sachi Kuse2, Yuka Hasegawa2
1Department of Physiology, School of Medicine, Aichi Medical University, Nagakute, Aichi, Japan.
PloS one
|January 22, 2026
概括
甲状腺激素受体相关蛋白3 (THRAP3) 对于骨肌肉发育至关重要. 失去THRAP3会损害肌肉细胞分化和甲状腺激素信号传递,确定它是肌肉发生的新型调节者.
科学领域:
- 分子生物学分子生物学
- 内分泌学 在内分泌学.
- 细胞生物学 细胞生物学
背景情况:
- 甲状腺激素 (TH) 调节新陈代谢,发育和神经系统功能.
- 甲状腺激素受体关联蛋白3 (THRAP3) 作为甲状腺激素受体 (TRs) 的核联合激活剂.
- 目前尚不清楚THRAP3在骨肌肉肌形成中的确切作用.
研究的目的:
- 研究THRAP3在骨肌肉分化中的功能.
- 阐明THRAP3在肌肉细胞内的甲状腺激素信号传递中的作用.
主要方法:
- 使用的 Thrap3 淘汰赛 (KO) C2C12 肌细胞细胞系.
- 评估了肌原性调节因子 (Myod1,Mef2c) 和肌重链基因的表达.
- 评估T3诱导的基因表达变化.
主要成果:
- 失去THRAP3显著抑制了关键的肌原性调节因子和肌重链基因表达.
- 由于THRAP3缺乏,肌细胞分化受损,肌肉细胞直径减少.
- 发现THRAP3能够影响肌肉细胞中三甲基因 (T3) 诱导的基因表达.
结论:
- THRAP3被确定为骨肌肉肌形成的一个新型调节剂.
- THRAP3在协调甲状腺激素敏感基因表达方面发挥着重要作用.
- 在骨肌细胞中,THRAP3支持甲状腺激素 (T3) 的活性.
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