双模CRISPR系统能同时开关不同基因

Core Insights - A new dual-mode CRISPRa/i gene editing system has been developed by South Korean scientists, allowing simultaneous "activation" and "suppression" of different genes, overcoming the limitations of existing CRISPR technology which primarily focuses on gene suppression [1][2]. Group 1: Technology Development - The new system was developed through collaboration between the Korea Advanced Institute of Science and Technology and the Korea Institute of Chemical Technology [1]. - The dual-mode gene scissors enable precise control of gene expression, akin to an electrical switch, which is crucial for optimizing metabolic pathways in synthetic biology [1][2]. Group 2: Performance Metrics - In experiments, the new system demonstrated significant performance improvements: protein expression levels increased by 4.9 times during activation experiments, while protein production decreased by 83% during suppression experiments [2]. - The system successfully achieved simultaneous regulation of two genes, with one gene's activity increased by 8.6 times and the other gene suppressed by 90% [2]. Group 3: Industry Implications - This dual-mode CRISPR system is expected to provide powerful tools for metabolic pathway optimization, gene network research, and bacterial functional genomics, potentially enhancing the efficient production of high-value compounds, biofuels, and pharmaceuticals [2].