保存 天生的免疫成分限制成年平面动物的转基因表达
L Drees1, D Bloesel1, J Kowalewski1
1Department of Tissue Dynamics and Regeneration, Max Planck Institute for Multidisciplinary Sciences, Göttingen, Germany.
概括
平面虫对遗传操纵的工具有限. 这项研究揭示了先天的免疫信号,特别是涉及坦克结合激酶1 (TBK1) 和巨细胞曼诺酶受体1 (MRC1),抑制了转基因表达,阻碍了研究.
科学领域:
- 发展生物学 发展生物学
- 再生医学是一种再生医学.
- 分子生物学分子生物学
背景情况:
- 平面植物 Schmidtea mediterranea 是再生和干细胞研究的一个关键模型.
- 转基因表达工具的局限性阻碍了在平面动物中的分子机制研究.
研究的目的:
- 在S. mediterranea建立一个基于等离子体的NanoLuciferase记者系统.
- 识别限制强大的转基因表达的生物学障碍.
- 调查天生的免疫在转基因表达中的作用.
主要方法:
- 基于等离子体的NanoLuciferase表达系统.
- 与内源性促进子序列的转染.
- 天生的免疫成分的RNA干扰 (RNAi) 查.
- 转录和功能分析.
主要成果:
- 尽管DNA输送成功,但观察到低和短暂的记者表达.
- 保护免疫调节剂和DNA传感器的平面同类的识别.
- 确定TBK1和MRC1是转基因表达的强有力的抑制剂.
- TBK1参与调节先天免疫和应激反应途径.
结论:
- 天生的免疫信号作为一个障碍,在平面生物的转基因表达的障碍.
- 调节天生的免疫路径对于S. mediterranea.有效的基因操纵至关重要.
- 这项工作为平面研究中改进的遗传工具提供了基础.
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