Gene expression analysis of conventional and interactive human gingival cell systems exposed to dental composites

Dental Materials : Official Publication of the Academy of Dental Materials
Simon SchulzOlga Polydorou

Abstract

The aim of this study was the detection of putative gene expression-related effects of dental composites in conventional and interactive gingival cell systems. Conventional monoculture (MC) and interactive cell systems (ICS) comprising human gingival fibroblast (HGF) and immortalized human gingival keratinocytes (IHGK) were exposed for 24h and 7 days according to ISO10993-12:2012 manufactured eluates of different composites (Ceram X(®), Filtek™ Supreme XT, Filtek™ Silorane, Fusio™ Liquid Dentin, and Vertise™ Flow). qRT-PCR-based mRNA analysis for biomarkers indicating cell proliferation, differentiation, apoptosis, inflammation, and adhesion was performed. Apoptotic cells were quantified by annexin-V labeling. Due to low RNA amounts, qPCR could not be performed for Vertise™ Flow and Fusio™ Liquid Dentin at day 7. At 24h, flowables yielded increased transcription for biomarkers of inflammation and apoptosis in IHGK, irrespective of the cell system. HGF cultures displayed lower transcription for cell adhesion markers in both cell systems. Filtek™ Supreme XT showed increased differentiation by elevated filaggrin gene expression in both cell systems for IHGK at day 7, while Filtek™ Silorane and Ceram X(®) yielded elevation of infla...Continue Reading

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Citations

Jul 14, 2016·Tissue Engineering. Part C, Methods·Jeroen K BuskermolenSusan Gibbs
Jan 15, 2017·Dental Materials : Official Publication of the Academy of Dental Materials·Brigitte AltmannThorsten Steinberg
Feb 9, 2021·Dental Materials : Official Publication of the Academy of Dental Materials·K SiemerO Polydorou
Feb 10, 2021·Dental Materials : Official Publication of the Academy of Dental Materials·Felix BurkhardtOlga Polydorou

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