Tris DBA palladium overcomes hypoxia-mediated drug resistance in multiple myeloma

Pilar de la Puente, Feda Azab, Barbara Muz, Micah Luderer, Jack Arbiser, Abdel Kareem Azab

Research output: Contribution to journalArticlepeer-review

14 Scopus citations

Abstract

Despite recent progress in novel and targeted therapies, multiple myeloma (MM) remains a therapeutically challenging incurable disease. The regulation of important cellular processes and its link to cancer presented Src as an attractive target for MM. We suggest a novel strategy to improve the treatment of MM and overcome the drug resistance for the current therapeutic agents by specific inhibition of Src in MM cells by Tris (Dibenzylideneacetone) dipalladium (Tris DBA). Tris DBA reduces proliferation, induces G1 arrest and apoptosis in MM cells. Tris DBA showed additive effect with proteasome inhibitors reducing proliferation, cell cycle signaling, and increasing apoptosis more than each drug alone. Tris DBA overcame hypoxia-induced effects such as enhanced chemotaxis or drug resistance to proteasome inhibitors by inhibition of HIF1α expression. Moreover, we found that Tris DBA is an effective anti-myeloma agent alone or in combination with other targeted drugs and that it reverses hypoxia-induced drug resistance in myeloma.

Original languageEnglish (US)
Pages (from-to)1677-1686
Number of pages10
JournalLeukemia and Lymphoma
Volume57
Issue number7
DOIs
StatePublished - Jul 2 2016
Externally publishedYes

Keywords

  • drug resistance
  • hypoxia
  • multiple myeloma
  • Src
  • Tris DBA

ASJC Scopus subject areas

  • Hematology
  • Oncology
  • Cancer Research

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