通过线粒体p53转位介导的铁代谢,TFRC切除诱导了软骨发育不足
Yidi Wang1, Xi Wen1, Yutong Guo1
1Department of Orthodontics, Peking University School and Hospital of Stomatology & National Center for Stomatology & National Clinical Research Center for Oral Diseases & National Engineering Research Center of Oral Biomaterials and Digital Medical Devices & Beijing Key Laboratory of Digital Stomatology & NHC Key Laboratory of Digital Stomatology & NMPA Key Laboratory for Dental Materials, No. 22, Zhongguancun Avenue South, Haidian District, Beijing 100081, China.
International journal of molecular sciences
|March 27, 2025
概括
转移林受体 (TFRC) 对于下软骨生长至关重要. 短缺TFRC会导致状细胞铁亡,影响下发育,并可能导致骨下缺血.
科学领域:
- 发展生物学 发展生物学
- 细胞生物学 细胞生物学
- 生物化学 生物化学
背景情况:
- 状带软骨对于下的生长至关重要.
- 这种软骨的形会导致骨下缺血症 (SMH).
- 转移林受体 (TFRC) 在状软骨发育中的作用需要进一步阐明.
研究的目的:
- 调查TFRC信号在产后下带状软骨发育中的调节作用.
- 探索潜在的分子机制,包括铁和SLC39A14的参与.
- 评估针对SMH的TFRC介导途径的治疗潜力.
主要方法:
- 在小鼠模型 (Tfrc-cKO) 和ATDC5细胞中的免疫光,免疫组织化学和qPCR.
- 在体外研究涉及TFRC过度表达/敲击和共免疫沉.
- 在体外和体外使用铁灭抑制剂 (Fer1,Ac-Met-OH,DPF) 的救援试验.
主要成果:
- TFRC对于状软骨的发育至关重要;TFRC切除改变了软骨厚度和状软骨的长度.
- 在TFRC缺陷上调SLC39A14,通过线粒体p53转位诱导冠状细胞铁.
- 铁酶抑制剂 (Fer1,Ac-Met-OH,DFP) 和DFP注射可挽救体差异化和软骨表型.
结论:
- 通过TFRC-SLC39A14-p53轴调节铁亡,TFRC通过TFRC-SLC39A14-p53轴调节产后状软骨发育.
- 这一途径为下下和其他软骨位症提供了潜在的治疗点.
- 了解TFRC的作用,可以了解SMH的病原性.
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