通过动态DNA纳米组件进行细胞外miRNA-响应型人工受体,用于生物标志物驱动疗法
Fang He1, Meixia Wang1, Jieyu Wang1
1State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering, College of Biology, Hunan Provincial Key Laboratory of Biomacromolecular Chemical Biology, Hunan University, Changsha, 410082, P. R. China.
Angewandte Chemie (International ed. in English)
|June 19, 2023
概括
研究人员开发了一种新的miRNA-响应的化学DNA受体 (miRNA-CDR) 用于生物标志物驱动的治疗. 该系统感知与疾病相关的细胞外微RNA (miRNAs),从而触发治疗性细胞反应,增强再生医学.
科学领域:
- 生物技术是生物技术.
- 分子生物学分子生物学
- 合成生物学 合成生物学
背景情况:
- 微RNAs (miRNAs) 显示出作为诊断生物标志物和治疗点的潜力.
- 目前的分子策略缺乏有效的方法来利用细胞外miRNA用于治疗功能.
研究的目的:
- 开发一个模块化和可编程的miRNA-响应的化学DNA受体 (miRNA-CDR).
- 通过感知细胞外miRNA并诱导治疗反应,使生物标志物驱动的治疗成为可能.
主要方法:
- 使用aptamer anchoring将一个miRNA响应的DNA纳米装置移植到膜受体上.
- 利用互补介导的链位移来进行DNA组装和受体激活.
- 用户定义的miRNA检测的编程序列特异性,具有可调节的灵敏度.
主要成果:
- 展示了一个设计者miRNA-CDR用于感知和响应与疾病相关的miRNAs.
- 通过适应MET和FGFR1.1等受体,成功地重新编程信号输出.
- 通过向miR-122.2,在药物诱导肝损伤 (DILI) 的小鼠模型中展示了原位肝脏修复和功能恢复.
结论:
- 合成miRNA-CDR平台为生物标志物驱动的治疗细胞反应提供了一个新的分子装置.
- 这项技术有可能提高再生医学中细胞治疗的精度.
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