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Surrogate reporter-based enrichment of cells containing RNA-guided Cas9 nuclease-induced mutations

Title
Surrogate reporter-based enrichment of cells containing RNA-guided Cas9 nuclease-induced mutations
Author
Ramakrishna Suresh
Issue Date
2014-02
Publisher
NATURE PUBLISHING GROUP
Citation
NATURE COMMUNICATIONS; FEB 2014, 5, 10p.
Abstract
RNA-guided endonucleases (RGENs), which are based on the clustered, regularly interspaced, short palindromic repeat (CRISPR)-CRISPR-associated (Cas) system, have recently emerged as a simple and efficient tool for genome editing. However, the activities of prepared RGENs are sometimes low, hampering the generation of cells containing RGEN-induced mutations. Here we report efficient methods to enrich cells containing RGEN-induced mutations by using surrogate reporters. HEK293T cells are cotransfected with the reporter plasmid, a plasmid encoding Cas9 and a plasmid encoding crRNA and tracrRNA, and subjected to flow cytometric sorting, magnetic separation or hygromycin selection. The selected cell populations are highly enriched with cells containing RGEN-induced mutations, by a factor of up to 11-fold as compared with the unselected population. The fold enrichment tends to be high when RGEN activity is low. We envision that these reporters will facilitate the use of RGEN in a wide range of biomedical research.
URI
https://www.nature.com/articles/ncomms4378http://hdl.handle.net/20.500.11754/51851
ISSN
2041-1723
DOI
10.1038/ncomms4378
Appears in Collections:
GRADUATE SCHOOL OF BIOMEDICAL SCIENCE AND ENGINEERING[S](의생명공학전문대학원) > ETC
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