Bioinspired inorganic nanoparticles and vascular factor microenvironment directed neo-bone formation

Biomater Sci. 2020 May 6;8(9):2627-2637. doi: 10.1039/d0bm00041h.

Abstract

Various strategies have been explored to stimulate new bone formation. These strategies include using angiogenic stimulants in combination with inorganic biomaterials. Neovascularization during the neo-bone formation provides nutrients along with bone-forming minerals. Therefore, it is crucial to design a bone stimulating microenvironment composed of both pro-angiogenic and osteogenic factors. In this respect, human vascular endothelial growth factor (hVEGF) has been shown to promote blood vessel formation and bone formation. Furthermore, in recent years, whitlockite (WH), a novel phase of magnesium-containing calcium phosphate derivatives that exist in our bone tissue, has been synthesized and applied in bone tissue engineering. In this study, our aim is to explore the potential use of hVEGF and WH for bone tissue engineering. Our study demonstrated that hVEGF and a WH microenvironment synergistically stimulated osteogenic commitment of mesenchymal stem cells both in vitro and in vivo.

MeSH terms

  • Animals
  • Calcium Phosphates / administration & dosage*
  • Cell Adhesion / drug effects
  • Cell Proliferation / drug effects
  • Mesenchymal Stem Cells / drug effects*
  • Mice, Inbred BALB C
  • Mice, Nude
  • Nanoparticles / administration & dosage*
  • Osteogenesis / drug effects*
  • Recombinant Proteins / administration & dosage
  • Skull / injuries
  • Tissue Engineering
  • Tissue Scaffolds
  • Vascular Endothelial Growth Factor A / administration & dosage*

Substances

  • Calcium Phosphates
  • Recombinant Proteins
  • VEGFA protein, human
  • Vascular Endothelial Growth Factor A
  • whitlockite