CRISPR prime editing for unconstrained correction of oncogenic KRAS variants

Abstract KRAS is the most commonly mutated RAS family gene and is a primary cause of the occurrence of several types of cancer. However, KRAS mutations have several unique and diverse molecular identities, making it difficult to find specific treatments. Here, we developed universal pegRNAs which ca...

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Main Authors: Gayoung Jang, Jiyeon Kweon, Yongsub Kim
Format: Article
Language:English
Published: Nature Portfolio 2023-06-01
Series:Communications Biology
Online Access:https://doi.org/10.1038/s42003-023-05052-1
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author Gayoung Jang
Jiyeon Kweon
Yongsub Kim
author_facet Gayoung Jang
Jiyeon Kweon
Yongsub Kim
author_sort Gayoung Jang
collection DOAJ
description Abstract KRAS is the most commonly mutated RAS family gene and is a primary cause of the occurrence of several types of cancer. However, KRAS mutations have several unique and diverse molecular identities, making it difficult to find specific treatments. Here, we developed universal pegRNAs which can correct all types of G12 and G13 oncogenic KRAS mutations with CRISPR-mediated prime editors (PEs). The universal pegRNA successfully corrected 12 types of KRAS mutations, accounting for 94% of all known KRAS mutations, by up to 54.8% correction frequency in HEK293T/17 cells. We also applied the universal pegRNA to correct endogenous KRAS mutations in human cancer cells and found that G13D KRAS mutation was successfully corrected to wild-type KRAS sequences with up to 40.6% correction frequency without indel mutations. We propose prime editing with the universal pegRNA as a ‘one–to–many’ potential therapeutic strategy for KRAS oncogene variants.
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spelling doaj.art-2faf4a85fb8f469a8e2220d1d90e7ad62023-07-02T11:23:18ZengNature PortfolioCommunications Biology2399-36422023-06-01611710.1038/s42003-023-05052-1CRISPR prime editing for unconstrained correction of oncogenic KRAS variantsGayoung Jang0Jiyeon Kweon1Yongsub Kim2Department of Cell and Genetic Engineering, Asan Medical Institute of Convergence Science and Technology, Asan Medical Center, University of Ulsan College of MedicineDepartment of Cell and Genetic Engineering, Asan Medical Institute of Convergence Science and Technology, Asan Medical Center, University of Ulsan College of MedicineDepartment of Cell and Genetic Engineering, Asan Medical Institute of Convergence Science and Technology, Asan Medical Center, University of Ulsan College of MedicineAbstract KRAS is the most commonly mutated RAS family gene and is a primary cause of the occurrence of several types of cancer. However, KRAS mutations have several unique and diverse molecular identities, making it difficult to find specific treatments. Here, we developed universal pegRNAs which can correct all types of G12 and G13 oncogenic KRAS mutations with CRISPR-mediated prime editors (PEs). The universal pegRNA successfully corrected 12 types of KRAS mutations, accounting for 94% of all known KRAS mutations, by up to 54.8% correction frequency in HEK293T/17 cells. We also applied the universal pegRNA to correct endogenous KRAS mutations in human cancer cells and found that G13D KRAS mutation was successfully corrected to wild-type KRAS sequences with up to 40.6% correction frequency without indel mutations. We propose prime editing with the universal pegRNA as a ‘one–to–many’ potential therapeutic strategy for KRAS oncogene variants.https://doi.org/10.1038/s42003-023-05052-1
spellingShingle Gayoung Jang
Jiyeon Kweon
Yongsub Kim
CRISPR prime editing for unconstrained correction of oncogenic KRAS variants
Communications Biology
title CRISPR prime editing for unconstrained correction of oncogenic KRAS variants
title_full CRISPR prime editing for unconstrained correction of oncogenic KRAS variants
title_fullStr CRISPR prime editing for unconstrained correction of oncogenic KRAS variants
title_full_unstemmed CRISPR prime editing for unconstrained correction of oncogenic KRAS variants
title_short CRISPR prime editing for unconstrained correction of oncogenic KRAS variants
title_sort crispr prime editing for unconstrained correction of oncogenic kras variants
url https://doi.org/10.1038/s42003-023-05052-1
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AT yongsubkim crisprprimeeditingforunconstrainedcorrectionofoncogenickrasvariants