Bioreactor System to Perfuse Mesentery Microvascular Networks and Study Flow Effects During Angiogenesis

Tissue Eng Part C Methods. 2019 Aug;25(8):447-458. doi: 10.1089/ten.TEC.2019.0119.

Abstract

Microvascular remodeling, or angiogenesis, plays a central role in multiple pathological conditions, including cancer, diabetes, and ischemia. Tissue-engineered in vitro models have emerged as tools to elucidate the mechanisms that drive the angiogenic process. However, a major challenge with model development is recapitulating the physiological complexity of real microvascular networks, including incorporation of the entire vascular tree and hemodynamics. This study establishes a bioreactor system that incorporates real microvascular networks with physiological flow as a novel ex vivo tissue culture model, thereby providing a platform to evaluate angiogenesis in a physiologically relevant environment.

Keywords: angiogenesis; bioreactor; shear stress; tissue culture model.

Publication types

  • Research Support, N.I.H., Extramural

MeSH terms

  • Animals
  • Bioreactors*
  • Microvessels / cytology
  • Microvessels / growth & development*
  • Neovascularization, Physiologic*
  • Rats
  • Rats, Wistar
  • Tissue Culture Techniques