相关实验视频
Updated: Jan 25, 2026

07:06
Principles of Site-Specific Recombinase SSR Technology
Published on: May 29, 2008
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通过双重复合酶介导的内皮细胞特异性血统追踪和切除
Jie Li1, Mingjun Zhang1, Xiuxiu Liu1
1CAS CEMCS-CUHK Joint Laboratory, New Cornerstone Science Laboratory, Shanghai Institute of Biochemistry and Cell Biology, Center for Excellence in Molecular Cell Science, Chinese Academy of Sciences, University of Chinese Academy of Sciences, Shanghai, China.
Cell regeneration (London, England)
|January 23, 2026
概括
我们使用双重组合酶技术开发了一种新的小鼠模型,用于精确的内皮细胞切除. 这种系统可以在各种条件下对内皮细胞功能进行准确的遗传研究.
科学领域:
- 分子生物学分子生物学
- 遗传学 是一个遗传学.
- 发展生物学 发展生物学
背景情况:
- 在体内功能研究中,精确地切除特定细胞系是必不可少的.
- 传统的方法,如Cre-依赖的诱导性喉毒素受体 (iDTR) 系统,面临着诸如非目标效应和可变效率等局限性.
研究的目的:
- 介绍一种新的Cdh5-RL-DTRGFP小鼠模型,用于精确的内皮细胞切除.
- 用双重重组合酶系统建立一个强大的平台来研究内皮细胞功能.
主要方法:
- 开发了Cdh5-RL-DTRGFP小鼠模型,需要Dre和Cre重组酶.
- 喉毒素受体 (DTR) 和GFP表达的激活,特别是在内皮细胞中.
- 用喉毒素来诱导细胞剥离.
主要成果:
- 双重组合酶逻辑确保了对转基因表达的严格控制.
- 双菌毒素的使用导致了有效的内皮细胞切除.
- 观察到的结果包括严重的血管泄漏,迅速的器官衰竭和死亡率.
结论:
- Cdh5-RL-DTRGFP小鼠系列为遗传研究提供了一个精确而强大的平台.
- 这种模型在生理和病理上方便对内皮细胞功能进行剖析.
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