工程转录因子结合阵列用于基于DNA的哺乳动物细胞基因表达控制
Annalise Zouein1, Brittany Lende-Dorn2, Kate E Galloway2
1Department of Chemical Engineering, Imperial College London, London, UK; Imperial College Centre for Synthetic Biology, Imperial College London, London, UK; Department of Bioengineering, Imperial College London, London, UK.
Trends in biotechnology
|June 10, 2025
概括
研究人员使用转录因子 (TF) 识别元素 (RE) 阵列开发了DNA工具,以控制哺乳动物细胞中的基因表达. 这种方法利用克隆麻烦循环重复 (CTRL) 技术,可实现精确的细胞工程和命运确定.
科学领域:
- 合成生物学 合成生物学
- 分子生物学分子生物学
- 哺乳动物细胞工程 哺乳动物细胞工程
背景情况:
- 基因表达控制对于细胞工程至关重要.
- 现有的方法往往需要额外的表达元件.
- 需要新的工具来精确调节哺乳动物系统中的基因.
研究的目的:
- 展示转录因子识别元素 (RE) 阵列的使用作为控制哺乳动物细胞基因表达的DNA工具.
- 开发一种组装定制RE数组的方法.
- 为了展示这些数组在细胞工程中的应用.
主要方法:
- 使用克隆麻烦的循环重复 (CTRL) 技术组装转录因子识别元素 (RE) 阵列.
- 基于TetR的RE阵列的演示,用于合成基因电路调制.
- 将定制的RE阵列等离子体转化为哺乳动物细胞.
主要成果:
- 基于TetR的RE阵列被证明可以改变合成基因电路的性能.
- 在CTRL技术成功地组装了多达256次RE重复的等离子体.
- 定制的RE阵列等离子体通过隔离转录因子 (TFs) 改变了宿主细胞的基因调节.
- 合成和原生TF都被隔离,影响细胞命运.
结论:
- 转录因子 (TF) 结合的RE数组是有效的DNA工具,用于控制哺乳动物细胞中的基因表达.
- 该CTRL技术有助于组装复杂的重复DNA数组.
- 这种方法扩大了哺乳动物细胞工程的可能性,包括基因电路控制和细胞命运决定.
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