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Published in: Clinical Oral Investigations 6/2019

Open Access 01-06-2019 | Original Article

Influence of static forces on the expression of selected parameters of inflammation in periodontal ligament cells and alveolar bone cells in a co-culture in vitro model

Authors: Jianwei Shi, Uwe Baumert, Matthias Folwaczny, Andrea Wichelhaus

Published in: Clinical Oral Investigations | Issue 6/2019

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Abstract

Objective

Aim of this study was to investigate the impact of human PDL-derived fibroblasts (HPDF) and human alveolar bone-derived osteoblasts (HABO) co-culture on the expression of cytokines involved in tissue remodeling using an in vitro compressive force (CF) model.

Materials and methods

Static compressive force (CF) of 47.4 g/cm2 was applied on mono- and co-cultured HPDFs and HABOs for 1, 2, or 4 h at 30 °C. TNFA, PTGS2, and IL6 gene expressions were determined by quantitative real-time polymerase chain reaction. TNF, PGE2, and IL6 concentrations were measured using enzyme-linked immunosorbent assay.

Results

In mono-culture, TNFA, PTGS2, and IL6 gene expressions were upregulated under CF as compared to controls for each time period in both cell types. PGE2 increased at 1 and 2 h in both cell types, and IL6 increased only at 2 and 4 h in HPDFs. Co-culture alleviated the force-induced increase of the expression of TNFA, PTGS2, IL6, PGE2, and IL6 in HPDFs at any time point. In HABOs, co-cultivation decreased the expression of PGE2 after 1 h and 4 h, and that of IL6 after 1 h compared to mono-culture.

Conclusions

CF application on co-cultures of HPDFs and HABOs causes significant changes of TNFA, PTGS2, and IL6 gene expressions and PGE2 and IL6 production in comparison to mono-culture indicating intercellular communication.

Clinical relevance

Mechanical stimulation of HPDFs and HABOs in co-culture induces a different gene expression pattern than stimulation of individual cell types alone. Co-culture might therefore be a relevant method to elucidate periodontal regeneration during orthodontic therapy.
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Metadata
Title
Influence of static forces on the expression of selected parameters of inflammation in periodontal ligament cells and alveolar bone cells in a co-culture in vitro model
Authors
Jianwei Shi
Uwe Baumert
Matthias Folwaczny
Andrea Wichelhaus
Publication date
01-06-2019
Publisher
Springer Berlin Heidelberg
Published in
Clinical Oral Investigations / Issue 6/2019
Print ISSN: 1432-6981
Electronic ISSN: 1436-3771
DOI
https://doi.org/10.1007/s00784-018-2697-2

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