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BioMed Research International
Volume 2015 (2015), Article ID 762407, 12 pages
http://dx.doi.org/10.1155/2015/762407
Research Article

Characterization of Bone Marrow Mononuclear Cells on Biomaterials for Bone Tissue Engineering In Vitro

1Department of Trauma, Hand and Reconstructive Surgery, Hospital of the Goethe University, Theodor-Stern-Kai 7, 60590 Frankfurt am Main, Germany
2Department of General and Visceral Surgery, Hospital of the Goethe University, 60590 Frankfurt am Main, Germany
3German Institute for Cell and Tissue Replacement gGmbH (DIZG), 12555 Berlin, Germany
4Institute of Transfusion Medicine and Immunohematology, Hospital of the Goethe University and German Red Cross Blood Service Baden-Württemberg-Hesse, 60528 Frankfurt am Main, Germany

Received 1 July 2014; Revised 5 November 2014; Accepted 10 November 2014

Academic Editor: Elena Jones

Copyright © 2015 Dirk Henrich et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

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.