Generation and comparison of CRISPR-Cas9 and Cre-mediated genetically engineered mouse models of sarcoma

Jianguo Huang,Mark Chen,M. Whitley,Hsuan-Cheng Kuo,Eric S. Xu,Andrea Walens,Y. Mowery,D. Van Mater,W. Eward,Diana M. Cardona,Lixia Luo,Yan Ma,Omar M. Lopez,Christopher E. Nelson,J. Robinson-Hamm,Anupama Reddy,S. Dave,C. Gersbach,R. Dodd,D. Kirsch

Published 2017 in Nature Communications

ABSTRACT

Genetically engineered mouse models that employ site-specific recombinase technology are important tools for cancer research but can be costly and time-consuming. The CRISPR-Cas9 system has been adapted to generate autochthonous tumours in mice, but how these tumours compare to tumours generated by conventional recombinase technology remains to be fully explored. Here we use CRISPR-Cas9 to generate multiple subtypes of primary sarcomas efficiently in wild type and genetically engineered mice. These data demonstrate that CRISPR-Cas9 can be used to generate multiple subtypes of soft tissue sarcomas in mice. Primary sarcomas generated with CRISPR-Cas9 and Cre recombinase technology had similar histology, growth kinetics, copy number variation and mutational load as assessed by whole exome sequencing. These results show that sarcomas generated with CRISPR-Cas9 technology are similar to sarcomas generated with conventional modelling techniques and suggest that CRISPR-Cas9 can be used to more rapidly generate genotypically and phenotypically similar cancers. Site-specific recombination and CRISPR-Cas9 have been used to generate genetically engineered mouse models of cancer. Here the authors compare sarcomas generated using both systems and see similar genetic and cellular phenotypes, suggesting CRISPR-Cas9 can be used to rapidly generate sarcoma models.

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