Molecular Cancer (Aug 2018)

Genome-scale CRISPR-Cas9 knockout screening in gastrointestinal stromal tumor with Imatinib resistance

  • Jie Cao,
  • Jianchang Wei,
  • Ping Yang,
  • Tong Zhang,
  • Zhuanpeng Chen,
  • Feng He,
  • Fang Wei,
  • Huacui Chen,
  • He Hu,
  • Junbin Zhong,
  • Zhi Yang,
  • Wensong Cai,
  • Wanglin Li,
  • Qiang Wang

DOI
https://doi.org/10.1186/s12943-018-0865-2
Journal volume & issue
Vol. 17, no. 1
pp. 1 – 6

Abstract

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Abstract Genome-scale CRISPR-Cas9 Knockout Screening was applied to investigate novel targets in imatinib-resistant gastrointestinal stromal tumor (GIST). 20 genes and 2 miRNAs have been selected by total reads of sgRNA and sgRNA diversity, which has been further validated in imatinib-resistant GIST cells by CCK8 and qPCR analysis. Our study has finally revealed 9 genes (DBP, NR3C1, TCF12, TP53, ZNF12, SOCS6, ZFP36, ACYP1, and DRD1) involved in imatinib-resistant GIST-T1 cells. TP53 and SOCS6 may be the most promising candidate genes for imatinib-resistance due to the possible signaling pathway, such as apoptosis pathway and Wnt signaling pathway, JAK-STAT signaling pathway. It is necessary to perform more studies to discover novel targets in imatinib-resistant GIST, including DBP, NR3C1, TCF12, ZNF12, ZFP36, ACYP1 and DRD1.

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