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Updated: Feb 4, 2026

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Genome Engineering of Primary Human B Cells Using CRISPR/Cas9
Published on: November 3, 2020
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通过CRISPR/Cas9介导的uORF工程增强了Salvia miltiorrhiza中的坦辛生物合成
Jin Shao1, Bowen Peng1, Han Zheng2
1Frontiers Science Center for Transformative Molecules, Joint International Research Laboratory of Metabolic and Developmental Sciences, Plant Biotechnology Research Center, Fudan-SJTU-Nottingham Plant Biotechnology R&D Center, School of Agriculture and Biology, Shanghai Jiao Tong University, Shanghai 200240, China.
Horticulture research
|February 2, 2026
概括
这项研究成功地使用了CRISPR/Cas9基因编辑来修改Salvia miltiorrhiza的上游开放阅读框架 (uORF),显著提高了药用植物的坦辛生产.
科学领域:
- 植物分子生物学 植物分子生物学
- 代谢工程是代谢工程.
- 药用植物生物技术 药用植物生物技术
背景情况:
- 坦辛的积累是Salvia miltiorrhiza药用价值的关键.
- 在保持农学特征的同时优化tanshinone生物合成是植物育种的一个主要挑战.
研究的目的:
- 研究CRISPR/Cas9介导的上游开放阅读框架 (uORF) 编辑的潜力,以增强药用植物中专门的代谢物生产.
- 通过uORF编辑调节SmCPS1基因的转录后调节.
主要方法:
- 在SmCPS1基因的5'领导序列中使用CRISPR/Cas9.9识别和编辑五个保存的uORF.
- 对工程同卵性突变体中坦辛积累的分析.
- 综合分子分析,包括转录和蛋白质水平评估.
主要成果:
- 工程同卵性突变体显示了1.19至1.81倍的增强坦辛积累.
- 观察到核心二类生物合成基因 (SmHMGR1,SmKSL1,SmCYP76AH1,SmCYP76AH3) 的转录激活.
- uORF编辑增强了SmCPS1蛋白积累而不改变转录水平,证实了翻译增强.
结论:
- 上游开放阅读框架 (uORF) 工程为Salvia miltiorrhiza的可预测代谢工程提供了一个强大的平台.
- 这一策略可以扩展到优化其他药物种中的高价值代谢物,通过准速率限制酶或转录调节剂.
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