Controlled Release Strategies for the Combination of Fresh and Lyophilized Platelet-Rich Fibrin on Bone Tissue Regeneration

Biomed Res Int. 2019 May 16:2019:4923767. doi: 10.1155/2019/4923767. eCollection 2019.

Abstract

The aim of the present study was to investigate growth factors release kinetics for the combination of fresh platelet-rich fibrin (F-PRF) and lyophilized PRF (L-PRF) with different ratios to promote bone tissue regeneration. First, we quantified the level of transforming growth factor-β1 (TGF-β1), vascular endothelial growth factor (VEGF), and platelet-derived growth factor-AB (PDGF-AB) in vitro and analyzed their release kinetics from F-PRF, L-PRF, and the fresh/lyophilized PRF in different weight ratios (F:L=1:1, 1:3, 1:5). The second experimental phase was to investigate the proliferation and differentiation of bone mesenchymal stem cells (BMSCs) as a functional response to the factors released. To further test the osteogenic potential in vivo, different scaffolds (F-PRF, or L-PRF, or F:L=1:1) were implanted in rabbit cranial bone defects. There was a statistically significant increase in proliferation and differentiation of BMSCs when the culture medium contained different PRF exudates collected at day 14 compared with the negative control group. The results showed that the new bone formation in the fresh/lyophilized PRF (1:1) was much more than that of other groups in defects at both 6 and 12 weeks. Our data suggested growth factor concentration and release kinetics as a consequence of fresh and lyophilized PRF combination, which is an effective way for promoting bone regeneration.

MeSH terms

  • Animals
  • Bone Marrow Cells / metabolism*
  • Bone Marrow Cells / pathology
  • Bone Regeneration / drug effects*
  • Cell Differentiation / drug effects*
  • Cell Proliferation / drug effects*
  • Delayed-Action Preparations / chemistry
  • Delayed-Action Preparations / pharmacokinetics
  • Delayed-Action Preparations / pharmacology
  • Humans
  • Male
  • Mesenchymal Stem Cells / metabolism*
  • Mesenchymal Stem Cells / pathology
  • Platelet-Rich Fibrin / chemistry*
  • Rabbits
  • Transforming Growth Factor beta1* / chemistry
  • Transforming Growth Factor beta1* / pharmacokinetics
  • Transforming Growth Factor beta1* / pharmacology

Substances

  • Delayed-Action Preparations
  • TGFB1 protein, human
  • Transforming Growth Factor beta1