RNAi screening of the tyrosine kinome identifies therapeutic targets in acute myeloid leukemia

Jeffrey W. Tyner, Denise K. Walters, Stephanie G. Willis, Mary Luttropp, Jason Oost, Marc Loriaux, Heidi Erickson, Amie S. Corbin, Thomas O'Hare, Michael C. Heinrich, Michael W. Deininger, Brian J. Druker

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57 Scopus citations

Abstract

Despite vast improvements in our understanding of cancer genetics, a large percentage of cancer cases present without knowledge of the causative genetic events. Tyrosine kinases are frequently implicated in the pathogenesis of numerous types of cancer, but identification and validation of tyrosine kinase targets in cancer can be a time-consuming process. We report the establishment of an efficient, functional screening assay using RNAi technology to directly assess and compare the effect of individually targeting each member of the tyrosine kinase family. We demonstrate that siRNA screening can identify tyrosine kinase targets containing activating mutations in Janus kinase (JAK) 3 (A572V) in CMK cells and c-KIT (V560G) in HMC1.1 cells. In addition, this assay identifies targets that do not contain mutations, such as JAK1 and the focal adhesion kinases (FAK), that are crucial to the survival of the cancer cells. This technique, with additional development, might eventually offer the potential to match specific therapies with individual patients based on a functional assay.

Original languageEnglish (US)
Pages (from-to)2238-2245
Number of pages8
JournalBlood
Volume111
Issue number4
DOIs
StatePublished - Feb 15 2008

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ASJC Scopus subject areas

  • Biochemistry
  • Immunology
  • Hematology
  • Cell Biology

Cite this

Tyner, J. W., Walters, D. K., Willis, S. G., Luttropp, M., Oost, J., Loriaux, M., Erickson, H., Corbin, A. S., O'Hare, T., Heinrich, M. C., Deininger, M. W., & Druker, B. J. (2008). RNAi screening of the tyrosine kinome identifies therapeutic targets in acute myeloid leukemia. Blood, 111(4), 2238-2245. https://doi.org/10.1182/blood-2007-06-097253