四面体脱氧核糖核酸工程多价值的溶酶体准金氏体,用于增强和双膜蛋白质降解
Haoran Zhu1, Guihua Zhang1, Yuhua Ning1
1The MOE Key Laboratory of Spectrochemical Analysis & Instrumentation, the Key Laboratory of Chemical Biology of Fujian Province, State Key Laboratory of Physical Chemistry of Solid Surfaces, Department of Chemical Biology, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, China.
ACS nano
|July 1, 2025
概括
四面体DNA和基于aptamer的多价值溶酶体向仿真体 (TDA-MLYTAC) 提高了蛋白质降解的效率. 这种新的方法改善了细胞吸收和稳定性,通过溶酶体路径进行向蛋白质去除.
科学领域:
- 生物技术是生物技术.
- 分子生物学分子生物学
- 药物输送系统 药物输送系统
背景情况:
- lysosome-targeting chimeras (LYTACs),特别是以aptamer为基础的基因基因基因基因基因基因基因基因基因基因基因基因基因基因基因基因基因基因基因基因基因基因基因基因基因基因基因基因基因基因基因基因基因基因基因基因基因基因基因基因基因基因基因基因基因基因.
- 传统的单价阿巴-LYTACs在细胞内化和血清稳定性方面表现出局限性,影响了降解效率.
研究的目的:
- 开发一个改进的LYTAC系统,四面体DNA和基于aptamer的多价值溶酶体向嵌合体 (TDA-MLYTAC),用于增强向蛋白质降解.
- 评估TDA-MLYTAC在向降解单或双蛋白标中的有效性,重点关注细胞吸收,稳定性和效率.
主要方法:
- 构建四面体DNA支架的功能化与阿普坦和向连接体.
- 在体外评估TDA-MLYTAC与单价LYTAC相比的细胞吸收,血清稳定性和蛋白质降解效率.
- 使用修改了N-乙黄胺和aptamers的TDA-MLYTAC来证明肝细胞特异性蛋白质降解.
主要成果:
- 与传统的LYTAC相比,TDA-MLYTAC显著改善了细胞吸收,标识和细胞稳定性.
- 与三价N-乙银胺和单价阿巴胺一起的TDA-MLYTAC通过 lysosomal 途径在肝细胞特异性膜蛋白降解中实现了两倍高的效率.
- 双特异的TDA-MLYTAC显示了同时降解双蛋白标的潜力.
结论:
- TDA-MLYTAC代表了针对性蛋白质降解技术的有希望的进步,克服了以前LYTAC设计的局限性.
- TDA-MLYTAC的模块化设计允许精确准和高效降解特定蛋白质,具有治疗应用的潜力.
- 这个平台有可能彻底改变向蛋白质降解工具,并推进受体介导药物治疗.
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