Synergisitic and Antagonistic AML Cell Type-specific Responses to 5-Aza-2-deoxycitidine and 1-h-D-Arabinofuranoside

Abeer Elmoneim, Elisabeth Heuston, Daniel H. Wai, Timothy Triche, Robert J. Arceci

Research output: Contribution to journalArticlepeer-review


BACKGROUND: The search for synergistic drug combinations is critical to the treatment of drug-resistant cancer, such as acute myeloid leukemia (AML). Characterizing RNA expression associated with 5-aza-2'-deoxycytidine (DAC) and 1-h-D-arabinofuranosylcytosine (Ara-C) is a critical step to increase the efficacy of their combinatorial therapies.

MATERIALS AND METHODS: After 72 h of single-dose treatments of AML cells with DAC or Ara-C, the half-maximal effective concentration of DAC and Ara-C and the drug combination index were assessed.

RESULTS: Pre-treatment with DAC restores cellular sensitivity in Ara-C-resistant AML cells. In contrast, DAC/Ara-C combinations are antagonistic in other Ara-C-sensitive AML cells.

CONCLUSION: Our results provide an alternative approach for predicting what combinations, dosing and scheduling of drug delivery should be used to better individualize therapy of AML.

Original languageEnglish (US)
Pages (from-to)691-696
Number of pages6
JournalAnticancer research
Issue number2
StatePublished - Feb 1 2016


  • Drug interaction
  • myeloid leukemia
  • pediatric cancer

ASJC Scopus subject areas

  • Oncology
  • Cancer Research


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