菌媒介细胞间CRISPRi用于细菌联盟中的生物计算
Abhinav Pujar1, Amit Pathania1, Corbin Hopper1,2,3
1Université Paris-Saclay, INRAE, AgroParisTech, Micalis Institute, 78350 Jouy-en-Josas, France.
Nucleic acids research
|December 27, 2024
概括
工程细菌使用菌体介导的DNA信号进行通信,使多细胞联盟中的复杂逻辑门操作成为可能. 这种合成生物学方法允许精确的基因调节和分布式生物电路.
科学领域:
- 合成生物学 合成生物学
- 微生物工程是微生物的工程.
- 基因电路的基因.
背景情况:
- 细胞协调对于微生物群落和多细胞生物体中复杂的功能至关重要.
- 生物工程师正在开发合成细胞联盟与通信系统,以增强功能.
研究的目的:
- 为了研究一种菌体介导的合成DNA信息传递系统的信号动态.
- 将该系统与CRISPR干扰 (CRISPRi) 结合起来,用于细菌联盟中的分布式逻辑门操作.
主要方法:
- 利用菌体介导的合成DNA信息传递系统进行细胞间通信.
- 集成的CRISPR干扰 (CRISPRi) 调节细胞间的基因表达.
- 开发和多重化一个细胞间CRISPRi (i-CRISPRi) 系统来实现多细胞逻辑门.
主要成果:
- 发现细胞生长阶段和资源竞争会影响沟通结果.
- 成功设计了八个直角DNA信号,用于可编程通信.
- 证明i-CRISPRi能够以分布式的方式在细菌细胞中调节基因表达的能力.
- 实现多细胞逻辑门 (NOT,YES,AND,AND-AND-NOT) 最多有七个单元和三个输入,使用单轨和双轨编码.
结论:
- 开发的菌体介导的DNA通信系统提供了一个可编程的平台,用于在工程细菌群体中构建复杂的生物电路.
- 细胞间CRISPRi为合成微生物联盟中分布式基因调节和逻辑操作提供了一个强大的机制.
- 这项工作为在多细胞系统中先进的合成生物学应用奠定了基础.
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