在活细胞中实施复杂的核酸循环
Jiajia Sun1, Xiewei Xiong1, Wei Lai2
1Shanghai Key Laboratory of Green Chemistry and Chemical Processes, School of Chemistry and Molecular Engineering, Shanghai Center of Brain-inspired Intelligent Materials and Devices, East China Normal University, Shanghai 200241, China.
Science advances
|April 30, 2025
概括
研究人员为细胞内计算开发了一种全链交换 (ASE) 策略. 这种模块化平台可以实现复杂的遗传电路设计和哺乳动物细胞中的可编程基因编辑.
科学领域:
- 合成生物学 合成生物学
- 分子计算是一种分子计算.
- 生物技术是生物技术.
背景情况:
- 合成核酸计算在体外显示有前途,但由于不稳定性和干扰,在细胞环境中面临挑战.
- 现有的方法在活细胞内的复杂计算的可靠和可编程执行方面扎.
研究的目的:
- 引入一种新的全链交换 (ASE) 策略,以实现强大且可编程的细胞内计算.
- 设计可扩展的遗传电路,用于检测特定的分子输入和控制细胞功能.
主要方法:
- 开发了一种全链交换 (ASE) 机制,利用结构合作来规范链交换.
- 设计了一个模块化电路架构,能够进行AND/OR逻辑操作,可扩展到八个输入.
- 在哺乳动物细胞中使用基于ASE的AND逻辑电路证明了信使RNA检测.
主要成果:
- 通过ASE策略成功实现了可扩展的细胞内电路,具有灵活的可编程性.
- 通过AND逻辑计算在哺乳动物细胞中检测信使RNA的高特异性.
- 展示了一种多输入分子分类器,用于监测细胞重编程事件和用于基因编辑的CRISPR-Cas9可编程控制.
结论:
- ASE战略为细胞内计算提供了一个强大的模块化平台,克服了以前的局限性.
- 基于ASE的电路使复杂的信息处理和可编程的细胞功能的控制,包括基因编辑.
- 这种方法在推进细胞内生物计算和合成生物学应用方面具有重大潜力.
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