SHC004-221A1, a novel tyrosine kinase, potently inhibits T315I mutant BCR-ABL in chronic myeloid leukemia

Eur J Pharmacol. 2017 Sep 15:811:117-124. doi: 10.1016/j.ejphar.2017.06.001. Epub 2017 Jun 6.

Abstract

Although judicious use of tyrosine kinase inhibitors that target BCR-ABL constitutes an effective strategy for the control of chronic myeloid leukemia (CML), drug resistance is observed due to kinase domain mutations, among which a major one is BCR-ABLT315I. In this study, we identified SHC004-221A1 as a potent inhibitor of T315I and other BCR-ABL mutants. Biochemical assays demonstrated that SHC004-221A1 has an inhibitory effect on all selected BCR-ABL mutants. In vitro studies showed that SHC004-221A1 inhibited the proliferation of tumor cell lines carrying native and T315I mutant BCR-ABL. Signaling pathway analysis revealed that SHC004-221A1 inhibited the phosphorylation of STAT5 and CrkL, which contributed to the apoptosis of CML cells. In vivo studies indicated that SHC004-221A1 suppressed BCR-ALBT315I-driven tumor growth in mice. Taken together, the results of this study suggested that SHC004-221A1 may be a promising BCR-ABLT315I inhibitor for the treatment of CML.

Keywords: BCR-ABL; Chronic myeloid leukemia (CML); Dasatinib (PubChem CID: 3062316); Imatinib mesylate (PubChem CID: 123596); Nilotinib (PubChem CID: 644241); Ponatinib (PubChem CID: 24826799); SHC004-221A1; T315I mutation.

MeSH terms

  • Animals
  • Cell Line, Tumor
  • Cell Proliferation / drug effects
  • Drug Resistance, Neoplasm / drug effects
  • Female
  • Fluorobenzenes / pharmacology*
  • Fluorobenzenes / therapeutic use
  • Fusion Proteins, bcr-abl / genetics*
  • Humans
  • Leukemia, Myelogenous, Chronic, BCR-ABL Positive / drug therapy*
  • Leukemia, Myelogenous, Chronic, BCR-ABL Positive / genetics*
  • Leukemia, Myelogenous, Chronic, BCR-ABL Positive / pathology
  • Male
  • Mice
  • Protein Kinase Inhibitors / pharmacology*
  • Protein Kinase Inhibitors / therapeutic use
  • Protein-Tyrosine Kinases / antagonists & inhibitors*
  • Purines / pharmacology*
  • Purines / therapeutic use
  • Signal Transduction / drug effects
  • Xenograft Model Antitumor Assays

Substances

  • Fluorobenzenes
  • Protein Kinase Inhibitors
  • Purines
  • SHC004-221A1
  • Protein-Tyrosine Kinases
  • Fusion Proteins, bcr-abl