alexa Gene-expression profiling of human osteoblasts following treatment with the ionic products of Bioglass 45S5 dissolution.
Materials Science

Materials Science

Journal of Nanomedicine & Nanotechnology

Author(s): Xynos ID, Edgar AJ, Buttery LD, Hench LL, Polak JM

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Abstract The effect of the ionic products of Bioglass 45S5 dissolution on the gene-expression profile of human osteoblasts was investigated by cDNA microarray analysis of 1,176 genes. Treatment with the ionic products of Bioglass 45S5 dissolution increased the levels of 60 transcripts twofold or more and reduced the levels of five transcripts to one-half or less than in control. Markedly up-regulated genes included RCL, a c-myc responsive growth related gene, cell cycle regulators such as G1/S specific cyclin D1, and apoptosis regulators including calpain and defender against cell death (DAD1). Other significantly up-regulated genes included the cell surface receptors CD44 and integrin beta1, and various extracellular matrix regulators including metalloproteinases-2 and -4 and their inhibitors TIMP-1 and TIMP-2. The identification of differentially expressed genes by cDNA microarray analysis has offered new insights into the mode of action of bioactive glasses and has proven to be an effective tool in evaluating their osteoproductive properties. Copyright 2001 John Wiley & Sons, Inc.
This article was published in J Biomed Mater Res and referenced in Journal of Nanomedicine & Nanotechnology

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