Characterization of bone marrow mononuclear cells on biomaterials for bone tissue engineering in vitro

Biomed Res Int. 2015:2015:762407. doi: 10.1155/2015/762407. Epub 2015 Feb 23.

Abstract

Bone marrow mononuclear cells (BMCs) are suitable for bone tissue engineering. Comparative data regarding the needs of BMC for the adhesion on biomaterials and biocompatibility to various biomaterials are lacking to a large extent. Therefore, we evaluated whether a surface coating would enhance BMC adhesion and analyze the biocompatibility of three different kinds of biomaterials. BMCs were purified from human bone marrow aspirate samples. Beta tricalcium phosphate (β-TCP, without coating or coated with fibronectin or human plasma), demineralized bone matrix (DBM), and bovine cancellous bone (BS) were assessed. Seeding efficacy on β-TCP was 95% regardless of the surface coating. BMC demonstrated a significantly increased initial adhesion on DBM and β-TCP compared to BS. On day 14, metabolic activity was significantly increased in BMC seeded on DBM in comparison to BMC seeded on BS. Likewise increased VEGF-synthesis was observed on day 2 in BMC seeded on DBM when compared to BMC seeded on BS. The seeding efficacy of BMC on uncoated biomaterials is generally high although there are differences between these biomaterials. Beta-TCP and DBM were similar and both superior to BS, suggesting either as suitable materials for spatial restriction of BMC used for regenerative medicine purposes in vivo.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Animals
  • Biocompatible Materials / pharmacology*
  • Bone Marrow Cells / cytology*
  • Bone Marrow Cells / drug effects
  • Bone Marrow Cells / metabolism
  • Bone Matrix / metabolism
  • Bone and Bones / drug effects
  • Bone and Bones / physiology*
  • Calcium Phosphates / pharmacology
  • Cattle
  • Cell Adhesion / drug effects
  • Cell Count
  • Cells, Cultured
  • Humans
  • Leukocytes, Mononuclear / cytology*
  • Leukocytes, Mononuclear / drug effects
  • Tissue Engineering / methods*
  • Vascular Endothelial Growth Factor A / metabolism

Substances

  • Biocompatible Materials
  • Calcium Phosphates
  • Vascular Endothelial Growth Factor A
  • beta-tricalcium phosphate