Journal of Neuro-Oncology

, Volume 92, Issue 2, pp 121–128

In vitro angiogenesis by human umbilical vein endothelial cells (HUVEC) induced by three-dimensional co-culture with glioblastoma cells

  • Zhijian Chen
  • Andre Htay
  • Wagner Dos Santos
  • George T. Gillies
  • Helen L. Fillmore
  • Milton M. Sholley
  • William C. Broaddus
Laboratory investigation - human/animal tissue

DOI: 10.1007/s11060-008-9742-y

Cite this article as:
Chen, Z., Htay, A., Santos, W.D. et al. J Neurooncol (2009) 92: 121. doi:10.1007/s11060-008-9742-y

Abstract

Glioblastoma multiforme (GBM) is one of the most highly vascularized of all human tumors. Our objective was to characterize a 3-dimensional (3-D) in vitro angiogenesis model by co-culturing HUVEC and GBM cells, and to study the role of VEGF in mediating capillary tubule formation in this model. HUVEC-coated dextran beads were suspended in fibrin gel with human glioma cells on top. The number of sprouts and the length of the processes were measured. HUVEC can be induced to form sprouts and longer processes with lumens, in co-culture with glioma cells that secrete VEGF. Addition of exogenous VEGF enhances this effect. In the absence of glioma cells, many single HUVEC migrate away from the beads, without significant tubule formation. Hypoxia further stimulated sprout formation by 50–100%. Anti-VEGF neutralizing antibody suppressed HUVEC sprouting by 75% in co-culture with glioma cells. This 3-D in vitro co-culture system provides a robust and useful model for analysis of the major steps of glioma-induced angiogenesis.

Keywords

AngiogenesisEndothelialVEGFFibrinGlioma

Copyright information

© Springer Science+Business Media, LLC. 2008

Authors and Affiliations

  • Zhijian Chen
    • 1
  • Andre Htay
    • 1
  • Wagner Dos Santos
    • 1
  • George T. Gillies
    • 1
    • 2
  • Helen L. Fillmore
    • 1
    • 3
  • Milton M. Sholley
    • 3
  • William C. Broaddus
    • 1
  1. 1.Department of Neurosurgery, Medical College of Virginia Hospitals, Ambulatory Care CenterVirginia Commonwealth UniversityRichmondUSA
  2. 2.School of Engineering and Applied ScienceUniversity of VirginiaCharlottesvilleUSA
  3. 3.Department of Anatomy and NeurobiologyVirginia Commonwealth UniversityRichmondUSA