In vivo activity of ABT-869, a multi-target kinase inhibitor, against acute myeloid leukemia with wild-type FLT3 receptor

Jianbiao Zhou, Jiaying Khng, Viraj J. Jasinghe, Chonglei Bi, Chiew Hoon Serene Neo, Mengfei Pan, Lai Fong Poon, Zhigang Xie, Hanry Yu, Allen Eng Juh Yeoh, Yi Lu, Keith B. Glaser, Daniel H. Albert, Steven K. Davidsen, Chien Shing Chen

Research output: Contribution to journalArticlepeer-review

Abstract

Neoangiogenesis plays an important role in leukemogenesis. We investigated the in vivo anti-leukemic effect of ABT-869 against AML with wild-type FLT3 using RFP transfected HL60 cells with in vivo imaging technology on both the subcutaneous and systemic leukemia xenograft models. ABT-869 showed a five-fold inhibition of tumor growth in comparison with vehicle control. IHC analysis revealed that ABT-869 decreased p-VEGFR1, Ki-67 labeling index, VEGF and remarkably increased apoptotic cells in the xenograft models. ABT-869 also reduced the leukemia burden and prolonged survival. Our study supports the rationale for clinically testing an anti-angiogenesis agent in AML with wild-type FLT3.

Original languageEnglish
Pages (from-to)1091-1100
Number of pages10
JournalLeukemia Research
Volume32
Issue number7
DOIs
StatePublished - Jul 2008

ASJC Scopus Subject Areas

  • Hematology
  • Oncology
  • Cancer Research

Keywords

  • Acute myeloid leukemia
  • In vivo
  • Tyrosine kinase inhibitor
  • Whole-body imaging technology
  • Wild-type FLT3 receptor

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