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A platform for precise quantification of gene editing products based on microfluidic chip-based digital PCR

文献类型： 外文期刊

作者： Chi, Jingzheng 1 ; Ding, Lin 1 ; Wang, Xiaofu 2 ; Chen, Xiaoyun 2 ; Peng, Cheng 2 ; Xu, Junfeng 2 ;

作者机构： 1.Zhejiang Agr & Forestry Univ, Coll Adv Agr Sci, Hangzhou 311300, Peoples R China

2.Zhejiang Acad Agr Sci, Inst Agroprod Safety & Nutr, State Key Lab Managing Biot & Chem Threats Qual &, Minist Agr, Hangzhou 310021, Peoples R China

期刊名称：ANALYTICAL METHODS （ 影响因子：2.7； 五年影响因子：2.7 ）

ISSN： 1759-9660

年卷期： 2024 年 16 卷 28 期

页码：

收录情况： SCI

摘要： The new generation of gene editing technologies, primarily based on CRISPR/Cas9 and its derivatives, allows for more precise editing of organisms. However, when the editing efficiency is low, only a small fraction of gene fragments is edited, leaving behind minimal traces and making it difficult to detect and evaluate the editing effects. Although a series of technologies and methods have been developed, they lack the ability for precise quantification and quantitative analysis of these products. Digital polymerase chain reaction (dPCR) offers advantages such as high precision and sensitivity, making it suitable for absolute quantification of nucleic acid samples. In the present study, we developed a novel platform for precise quantification of gene editing products based on microfluidic chip-based dPCR. The results indicated that our assay accurately identified different types of edited samples within a variety of different types, including more complex genomic crops such as tetraploid rapeseed and soybean (highly repetitive sequence). The sensitivity of this detection platform was as low as 8.14 copies per mu L, with a detection limit of 0.1%. These results demonstrated the superior performance of the platform, including high sensitivity, low detection limit, and wide applicability, enabling precise quantification and assessment of gene editing efficiency. In conclusion, microfluidic chip-based dPCR was used as a powerful tool for precise quantification and assessment of gene editing products. The new generation of gene editing technologies, primarily based on CRISPR/Cas9 and its derivatives, allows for more precise editing of organisms.

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