Progression of RAS-mutant leukemia during RAF inhibitor treatment Journal Article


Authors: Callahan, M. K.; Rampal, R.; Harding, J. J.; Klimek, V. M.; Chung, Y. R.; Merghoub, T.; Wolchok, J. D.; Solit, D. B.; Rosen, N.; Abdel-Wahab, O.; Levine, R. L.; Chapman, P. B.
Article Title: Progression of RAS-mutant leukemia during RAF inhibitor treatment
Abstract: Vemurafenib, a selective RAF inhibitor, extends survival among patients with BRAF V600E-mutant melanoma. Vemurafenib inhibits ERK signaling in BRAF V600E-mutant cells but activates ERK signaling in BRAF wild-type cells. This paradoxical activation of ERK signaling is the mechanistic basis for the development of RAS-mutant squamous-cell skin cancers in patients treated with RAF inhibitors. We report the accelerated growth of a previously unsuspected RAS-mutant leukemia in a patient with melanoma who was receiving vemurafenib. Exposure to vemurafenib induced hyperactivation of ERK signaling and proliferation of the leukemic cell population, an effect that was reversed on drug withdrawal. Copyright © 2012 Massachusetts Medical Society.
Journal Title: New England Journal of Medicine
Volume: 367
Issue: 24
ISSN: 0028-4793
Publisher: Massachusetts Medical Society  
Date Published: 2012-12-13
Start Page: 2316
End Page: 2321
Language: English
DOI: 10.1056/NEJMoa1208958
PROVIDER: scopus
PUBMED: 23134356
PMCID: PMC3627494
DOI/URL:
Notes: --- - "Export Date: 2 January 2013" - "CODEN: NEJMA" - "Source: Scopus"
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MSK Authors
  1. Neal Rosen
    425 Rosen
  2. Virginia Klimek
    147 Klimek
  3. Jedd D Wolchok
    905 Wolchok
  4. Taha Merghoub
    364 Merghoub
  5. David Solit
    779 Solit
  6. James Joseph Harding
    250 Harding
  7. Raajit Kumar Rampal
    338 Rampal
  8. Paul Chapman
    326 Chapman
  9. Ross Levine
    776 Levine
  10. Margaret Kathleen Callahan
    197 Callahan
  11. Young Rock Chung
    48 Chung