PMID- 12726713 OWN - NLM STAT- MEDLINE DCOM- 20040408 LR - 20220321 IS - 0142-9612 (Print) IS - 0142-9612 (Linking) VI - 24 IP - 15 DP - 2003 Jul TI - Comparison of human bone marrow stromal cells seeded on calcium-deficient hydroxyapatite, beta-tricalcium phosphate and demineralized bone matrix. PG - 2593-603 AB - The aim of this study was to compare three resorbable biomaterials regarding seeding efficacy with human bone marrow stromal cells (BMSCs), cell penetration into the matrix, cell proliferation and osteogenic differentiation. Calcium-deficient hydroxyapatite (CDHA), beta-tricalcium phosphate (beta-TCP), and demineralized bone matrix (DBM) were seeded with human BMSCs and kept in human serum and osteogenic supplements for 3 weeks. Morphologic and biochemical evaluations were performed on day 1, 7, 14 and 21. The allograft DBM and CDHA exhibited both an excellent seeding efficacy while the performance of beta-TCP was lower when compared. The total protein content and the values for specific alkaline phosphatase (ALP) increased on all matrices and no significant difference was found for these two markers. BMSCs in monolayer had a significant increase of protein, but not of ALP. Osteocalcin (OC) values increased significantly higher for BMSC in cultures on DBM when compared to CDHA and beta-TCP. The OC levels decreased significantly in the BMSC monolayer culture. BMSCs were found inconsistently within the synthetic materials, whereas in DBM they were found more homogeneously distributed throughout the matrix. All three matrices promoted BMSC proliferation and differentiation to osteogenic cells. DBM allografts seem to be more favorable with respect to cell ingrowth tested by histology, and osteogenic differentiation ascertained by an increase of OC. CDHA with its high specific surface area showed more favorable properties than beta-TCP regarding reproducibility of the seeding efficacy. FAU - Kasten, P AU - Kasten P AD - Orthopedic Surgery, University of Heidelberg, Schlierbacher Landstr. 200a, 69118, Heidelberg, Germany. philip.kasten@gmx.de FAU - Luginbuhl, R AU - Luginbuhl R FAU - van Griensven, M AU - van Griensven M FAU - Barkhausen, T AU - Barkhausen T FAU - Krettek, C AU - Krettek C FAU - Bohner, M AU - Bohner M FAU - Bosch, U AU - Bosch U LA - eng PT - Comparative Study PT - Journal Article PL - Netherlands TA - Biomaterials JT - Biomaterials JID - 8100316 RN - 0 (Biocompatible Materials) RN - 0 (Calcium Phosphates) RN - 0 (Hydroxyapatites) RN - 0 (beta-tricalcium phosphate) RN - 104982-03-8 (Osteocalcin) RN - K4C08XP666 (tricalcium phosphate) RN - SY7Q814VUP (Calcium) SB - IM MH - Biocompatible Materials/metabolism MH - Bone Marrow Cells/*metabolism/ultrastructure MH - Bone Matrix/*metabolism MH - Calcium/*metabolism MH - Calcium Phosphates/*metabolism MH - Cell Culture Techniques/methods MH - Cell Differentiation MH - Cell Division MH - Cells, Cultured MH - Humans MH - Hydroxyapatites/*metabolism MH - Materials Testing MH - Osteocalcin/metabolism MH - Stromal Cells/*metabolism/ultrastructure EDAT- 2003/05/03 05:00 MHDA- 2004/04/09 05:00 CRDT- 2003/05/03 05:00 PHST- 2003/05/03 05:00 [pubmed] PHST- 2004/04/09 05:00 [medline] PHST- 2003/05/03 05:00 [entrez] AID - S0142961203000620 [pii] AID - 10.1016/s0142-9612(03)00062-0 [doi] PST - ppublish SO - Biomaterials. 2003 Jul;24(15):2593-603. doi: 10.1016/s0142-9612(03)00062-0.