SNS-032 prevents tumor cell-induced angiogenesis by inhibiting vascular endothelial growth factor

Research output: Contribution to journalArticle

41 Scopus citations

Abstract

Cell proliferation, migration, and capillary network formation of endothelial cells are the fundamental steps for angiogenesis, which involves the formation of new blood vessels. The purpose of this study is to investigate the effect of a novel aminothiazole SNS-032 on these critical steps for in vitro angiogenesis using a coculture system consisting of human umbilical vein endothelial cells (HUVECs) and human glioblastoma cells (U87MG). SNS-032 is a potent selective inhibitor of cyclin-dependent kinases 2, 7, and 9, and inhibits both transcription and cell cycle. In this study, we examined the proliferation and viability of HUVECs and U87MG cells in the presence of SNS-032 and observed a dose-dependent inhibition of cellular proliferation in both cell lines. SNS-032 inhibited three-dimensional capillary network formations of endothelial cells. In a coculture study, SNS-032 completely prevented U87MG cell-mediated capillary formation of HUVECs. This inhibitor also prevented the migration of HUVECs when cultured alone or cocultured with U87MG cells. In addition, SNS-032 significantly prevented the production of vascular endothelial growth factor (VEGF) in both cell lines, whereas SNS-032 was less effective in preventing capillary network formation and migration of endothelial cells when an active recombinant VEGF was added to the medium. In conclusion, SNS-032 prevents in vitro angiogenesis, and this action is attributable to blocking of VEGF.

Original languageEnglish (US)
Pages (from-to)370-381
Number of pages12
JournalNeoplasia
Volume9
Issue number5
DOIs
StatePublished - May 2007

Keywords

  • Angiogenesis
  • Capillary formation
  • Endothelial cells
  • Migration
  • VEGF

ASJC Scopus subject areas

  • Cancer Research

Fingerprint Dive into the research topics of 'SNS-032 prevents tumor cell-induced angiogenesis by inhibiting vascular endothelial growth factor'. Together they form a unique fingerprint.

Cite this