WMJ-S-001, a novel aliphatic hydroxamate derivative, exhibits anti-angiogenic activities via Src-homology-2-domain-containing protein tyrosine phosphatase 1

Oncotarget. 2015 Jan 1;6(1):85-100. doi: 10.18632/oncotarget.2765.

Abstract

Angiogenesis, one of the major routes for tumor invasion and metastasis represents a rational target for therapeutic intervention. Recent development in drug discovery has highlighted the diverse biological and pharmacological properties of hydroxamate derivatives. In this study, we characterized the anti-angiogenic activities of a novel aliphatic hydroxamate, WMJ-S-001, in an effort to develop novel angiogenesis inhibitors. WMJ-S-001 inhibited vascular endothelial growth factor (VEGF)-A-induced proliferation, invasion and endothelial tube formation of human umbilical endothelial cells (HUVECs). WMJ-S-001 suppressed VEGF-A-induced microvessel sprouting from aortic rings, and attenuated angiogenesis in in vivo mouse xenograft models. In addition, WMJ-S-001 inhibited the phosphorylations of VEGFR2, Src, FAK, Akt and ERK in VEGF-A-stimulated HUVECs. WMJ-S-001 caused an increase in SHP-1 phosphatase activity, whereas NSC-87877, a SHP-1 inhibitor, restored WMJ-S-001 suppression of VEGFR2 phosphorylation and cell proliferation. Furthermore, WMJ-S-001 inhibited cell cycle progression and induced cell apoptosis in HUVECs. These results are associated with p53 phosphorylation and acetylation and the modulation of p21 and survivin. Taken together, WMJ-S-001 was shown to modulate vascular endothelial cell remodeling through inhibiting VEGFR2 signaling and induction of apoptosis. These results also support the role of WMJ-S-001 as a potential drug candidate and warrant the clinical development in the treatment of cancer.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Angiogenesis Inhibitors / pharmacology*
  • Animals
  • Apoptosis
  • Cell Cycle
  • Cell Proliferation
  • Cell Survival
  • Colorectal Neoplasms / metabolism
  • Colorectal Neoplasms / pathology
  • Cyclin-Dependent Kinase Inhibitor p21 / metabolism
  • Dose-Response Relationship, Drug
  • Flow Cytometry
  • Human Umbilical Vein Endothelial Cells
  • Humans
  • Hydroxamic Acids / pharmacology*
  • Inhibitor of Apoptosis Proteins / metabolism
  • Mice
  • Mice, Nude
  • Microcirculation
  • Naphthalenes / pharmacology*
  • Neoplasm Transplantation
  • Neoplasms / drug therapy*
  • Neoplasms / metabolism
  • Neovascularization, Pathologic*
  • Phosphorylation
  • Protein Structure, Tertiary
  • Protein Tyrosine Phosphatase, Non-Receptor Type 6 / metabolism*
  • Protein Tyrosine Phosphatases / metabolism*
  • Signal Transduction
  • Survivin

Substances

  • Angiogenesis Inhibitors
  • BIRC5 protein, human
  • CDKN1A protein, human
  • Cyclin-Dependent Kinase Inhibitor p21
  • Hydroxamic Acids
  • Inhibitor of Apoptosis Proteins
  • Naphthalenes
  • Survivin
  • WMJ-S-001
  • Protein Tyrosine Phosphatase, Non-Receptor Type 6
  • Protein Tyrosine Phosphatases