通过设计的激动因子诱导HER2-FGFR近距离的直接细胞重编程
bioRxiv : the preprint server for biology
|November 24, 2025
概括
称为诺沃基因的合成配体可以通过强迫受体对结合而重新编程细胞身份. 一种诺沃金,H2F,将纤维细胞重新编程成肌肉细胞,显示出再生医学的前景.
科学领域:
- 细胞生物学 细胞生物学
- 生物化学 生物化学
- 再生医学是一种再生医学.
背景情况:
- 增长因子信号通路控制细胞命运.
- 受体二分化和激活是这些途径的关键.
- 针对新型受体对提供了一种设计细胞身份的方法.
研究的目的:
- 研究用于细胞重编程的新设计合成配体 (Novokines).
- 探索诱导新型受体对,特别是HER2和FGF受体之间的接近的潜力.
- 评估工程受体信号传导用于细胞命运工程和再生的治疗能力.
主要方法:
- 合成配体 (诺诺基因) 的新设计.
- 使用FRET测试来确认受体接近.
- 采用蛋白质组分析来识别下游信号.
- 在体外评估肌原分化和肌纤维形成.
主要成果:
- 一个合成的连接体H2F成功诱导了HER2和FGF受体之间的接近.
- H2F表现出强大的信号活动,将纤维细胞重编程为肌细胞.
- H2F选择性地激活了MAPK通路,绕过了PLCγ介导的Ca2+信号传递.
- H2F治疗促进了来自患者的肌细胞的显著肌纤维形成.
结论:
- 合成受体配对可以设计为重新连接细胞信号输出.
- 诺诺基因为细胞命运工程提供了一个可编程的平台.
- 工程受体相互作用可以驱动再生,在治疗肌体发生学中具有潜在的应用.
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