Modification of Ti6AL4V surfaces using collagen I, III, and fibronectin. II. Influence on osteoblast responses

✍ Scribed by Susanne Bierbaum; Ute Hempel; Ulrike Geißler; Thomas Hanke; Dieter Scharnweber; Klaus-Wolfgang Wenzel; Hartmut Worch

• Publisher: John Wiley and Sons
• Year: 2003
• Tongue: English
• Weight: 434 KB
• Volume: 67A
• Category: Article
• ISSN: 1549-3296
• DOI: 10.1002/jbm.a.10084

✦ Synopsis

Abstract

Responses of osteoblastic cells are influenced by morphology and composition of the extracellular matrix, and this fact has been used to improve the biological acceptance of implants by modifying the surfaces with components of the extracellular matrix (ECM). In this study, the effect of the collagen types I and III on adhesion, proliferation, and differentiation was studied, using primary osteoblastic cells from rat calvariae. Differences in alkaline phosphatase activity (ALP) and collagen synthesis were observed between differently composed collagen coatings. An increase in collagen type III resulted in an increase in collagen synthesis and a concomitant decrease in ALP activity and Ca deposition. Initial adhesion mechanism of the cells depended on the substrate (titanium, collagen, fibronectin). © 2003 Wiley Periodicals, Inc. J Biomed Mater Res 67A: 431–438, 2003