Volume 14, Issue 12 pp. 1783-1794
Full Paper

Sulfated Hyaluronan Influences the Formation of Artificial Extracellular Matrices and the Adhesion of Osteogenic Cells

Alina Miron

Alina Miron

Institute of Materials Science, Max Bergmann Center of Biomaterials, Technische Universität Dresden, 01069 Dresden, Germany

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Sandra Rother

Sandra Rother

Institute of Materials Science, Max Bergmann Center of Biomaterials, Technische Universität Dresden, 01069 Dresden, Germany

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Linda Huebner

Linda Huebner

Institute of Materials Science, Max Bergmann Center of Biomaterials, Technische Universität Dresden, 01069 Dresden, Germany

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Ute Hempel

Ute Hempel

Institute of Physiological Chemistry, Technische Universität Dresden, 01307 Dresden, Germany

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Iris Käppler

Iris Käppler

Institute of Textile Machinery and High Performance Material Technology, Technische Universität Dresden, 01062 Dresden, Germany

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Stephanie Moeller

Stephanie Moeller

Biomaterials Department, INNOVENT e.V., 07745 Jena, Germany

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Matthias Schnabelrauch

Matthias Schnabelrauch

Biomaterials Department, INNOVENT e.V., 07745 Jena, Germany

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Dieter Scharnweber

Dieter Scharnweber

Institute of Materials Science, Max Bergmann Center of Biomaterials, Technische Universität Dresden, 01069 Dresden, Germany

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Vera Hintze

Corresponding Author

Vera Hintze

Institute of Materials Science, Max Bergmann Center of Biomaterials, Technische Universität Dresden, 01069 Dresden, Germany

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First published: 12 September 2014
Citations: 19

Abstract

The aim of this study is to compare differentially sulfated hyaluronan (sHA) derivatives and chondroitin sulfate (CS) with respect to their ability to influence the formation of artificial extracellular matrices (aECMs) during in vitro-fibrillogenesis of collagen type I at high- and low-ionic strength. Analysis is performed using turbidity, biochemical assays, atomic force (AFM), and transmission electron microscopy (TEM). In general, high-sulfated glycosaminoglycans (GAGs) associate to a higher amount with collagen than the low-sulfated ones. The addition of GAGs prior to fibrillogenesis at low-ionic strength results in a dose-dependent decrease in fibril diameter. At high-ionic strength these effects are only obtained for the sHA derivatives but not for CS. Likewise, increasing concentrations and degree of GAG sulfation strongly affected the kinetics of fibrillogenesis. The impact of sulfation degree on F-actin location and fiber formation in SaOS-2 cells implies that adhesion-related intracellular signaling is influenced to a variable extent.mabi201400292-gra-0001

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