Cell Reports (Oct 2016)

A CRISPR Dropout Screen Identifies Genetic Vulnerabilities and Therapeutic Targets in Acute Myeloid Leukemia

  • Konstantinos Tzelepis,
  • Hiroko Koike-Yusa,
  • Etienne De Braekeleer,
  • Yilong Li,
  • Emmanouil Metzakopian,
  • Oliver M. Dovey,
  • Annalisa Mupo,
  • Vera Grinkevich,
  • Meng Li,
  • Milena Mazan,
  • Malgorzata Gozdecka,
  • Shuhei Ohnishi,
  • Jonathan Cooper,
  • Miten Patel,
  • Thomas McKerrell,
  • Bin Chen,
  • Ana Filipa Domingues,
  • Paolo Gallipoli,
  • Sarah Teichmann,
  • Hannes Ponstingl,
  • Ultan McDermott,
  • Julio Saez-Rodriguez,
  • Brian J.P. Huntly,
  • Francesco Iorio,
  • Cristina Pina,
  • George S. Vassiliou,
  • Kosuke Yusa

DOI
https://doi.org/10.1016/j.celrep.2016.09.079
Journal volume & issue
Vol. 17, no. 4
pp. 1193 – 1205

Abstract

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Acute myeloid leukemia (AML) is an aggressive cancer with a poor prognosis, for which mainstream treatments have not changed for decades. To identify additional therapeutic targets in AML, we optimize a genome-wide clustered regularly interspaced short palindromic repeats (CRISPR) screening platform and use it to identify genetic vulnerabilities in AML cells. We identify 492 AML-specific cell-essential genes, including several established therapeutic targets such as DOT1L, BCL2, and MEN1, and many other genes including clinically actionable candidates. We validate selected genes using genetic and pharmacological inhibition, and chose KAT2A as a candidate for downstream study. KAT2A inhibition demonstrated anti-AML activity by inducing myeloid differentiation and apoptosis, and suppressed the growth of primary human AMLs of diverse genotypes while sparing normal hemopoietic stem-progenitor cells. Our results propose that KAT2A inhibition should be investigated as a therapeutic strategy in AML and provide a large number of genetic vulnerabilities of this leukemia that can be pursued in downstream studies.

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