The response of osteoblastic MC3T3-E1 cells to micro- and nano-textured, hydrophilic and bioactive titanium surfaces

Journal of Materials Science. Materials in Medicine
Simone LumettiCarlo Galli

Abstract

The aim of the present work was to investigate the morphology and activity of the murine osteoblastic cell line MC3T3 on control smooth (Machined), commercially available rough (ZT) titanium discs, and on titanium samples obtained by modifying the ZT treatment protocol, and herein labelled as ZTF, ZTM and ZTFM. Cells were evaluated at SEM and immunofluorescence for morphology and cell-to-cell interactions and by MTT assay and real time PCR for cell growth and function. Microscopy showed that ZT modified protocols could differently affect cell shape and distribution. All the tested surfaces showed good biocompatibility by viability assay. However, cells on smoother surfaces appeared to express higher levels of transcript for Collagen 1a1, the main component of extracellular matrix, by real time PCR. Expression of the early differentiation marker Alkaline Phosphatase was higher on ZTF surfaces and ZTM enhanced the expression of later osteoblastic markers Osteoprotegerin and Osteocalcin. Noteworthy, the expression of Connexin 43, a component of cell-to-cell contacts and hemichannels, followed a similar pattern to differentiation marker genes and was higher in cells on ZTM surfaces, consistently with the microscopic observation of ...Continue Reading

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Mar 25, 2017·European Journal of Orthodontics·B Giuliano MainoMauro Gandolfini
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