Biopolymer-based membranes associated with osteogenic growth peptide for guided bone regeneration

Biomed Mater. 2018 Mar 14;13(3):035009. doi: 10.1088/1748-605X/aaaa2d.

Abstract

Barrier membranes for guided bone regeneration (GBR) mainly promote mechanical maintenance of bone defect space and induce osteopromotion. Additionally, biopolymer-based membranes may provide greater bioactivity and biocompatibility due to their similarity to extracellular matrix (ECM). In this study, biopolymers-based membranes from bacterial cellulose (BC) and collagen (COL) associated with osteogenic growth peptide (OGP(10-14)) were evaluated to determine in vitro osteoinductive potential in early osteogenesis; moreover, histological study was performed to evaluate the BC-COL OGP(10-14) membranes on bone healing after GBR in noncritical defects in rat femur. The results showed that the BC-COL and BC-COL OGP(10-14) membranes promoted cell proliferation and alkaline phosphatase activity in osteoblastic cell cultures. However, ECM mineralization was similar between cultures grown on BC OGP(10-14) and BC-COL OGP(10-14) membranes. In vivo results showed that all the membranes tested, including the peptide-free BC membrane, promoted better bone regeneration than control group. Furthermore, the BC-COL OGP(10-14) membranes induced higher radiographic density in the repaired bone than the other groups at 1, 4 and 16 weeks. Histomorphometric analyses revealed that the BC-COL OGP(10-14) induced higher percentage of bone tissue in the repaired area at 2 and 4 weeks than others membranes. In general, these biopolymer-based membranes might be potential candidates for bone regeneration applications.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Animals
  • Animals, Newborn
  • Biopolymers / chemistry*
  • Bone Regeneration*
  • Bone and Bones / pathology
  • Cell Culture Techniques
  • Cell Membrane / metabolism
  • Cell Proliferation
  • Collagen / chemistry
  • Histones / chemistry*
  • Intercellular Signaling Peptides and Proteins / chemistry*
  • Male
  • Osteoblasts / cytology
  • Osteogenesis / drug effects*
  • Peptides / chemistry
  • Polymers / chemistry
  • Rats
  • Rats, Wistar

Substances

  • Biopolymers
  • Histones
  • Intercellular Signaling Peptides and Proteins
  • Peptides
  • Polymers
  • osteogenic growth peptide
  • Collagen