Interleukin Expression and Activation of Inflammatory/Apoptosis Pathways on Human Gingival Fibroblasts Exposed to Light-Cured Dental Composites
- 1Department of Innovative Technologies in Medicine and Dentistry, University “G. d’Annunzio” Chieti-Pescara, Via dei Vestini 31, 66100 Chieti, Italy
- 2Department of Medical, Oral and Biotechnological Sciences, University “G. d’Annunzio” Chieti-Pescara, Via dei Vestini 31, 66100 Chieti, Italy
- 3Department of Neuroscience, Imaging and Clinical Sciences, University “G. d’Annunzio” Chieti-Pescara, Via dei Vestini 31, 66100 Chieti, Italy
Abstract
This in vitro study aimed to analyze the activation of the NFκB p65/MyD88/NALP3 inflammatory pathway and the expression of the BCL-2/BAX/Caspase-3 apoptosis pathway on human gingival fibroblasts (hGFs) after 24 h and 1-week exposure to the eluates of three light-cured commercial composites (GR: GrandioSO, VOCO; BF: Enamel Plus HRi Biofunction, Micerium; FU: Filtek universal restorative, 3M) and the production of pro-inflammatory cytokines (TNF-α, IL-6, IL-1β). A total of 50 light-cured disk-shaped specimens for each composite group (GR, BF and FU) were produced. The tested materials differed in resin matrix composition; notably, GR contained Bis-GMA, whereas BF and FU contained urethane-based dimethacrylates. The hGFs were exposed for 24 h and 1 week to eluates of each group. Pathway activation was evaluated by cell metabolic activity, immunofluorescence analysis and real-time PCR. Inflammatory effects were assessed in hGF culture by measuring proinflammatory cytokine production (ELISA). GR, BF and FU showed a reduction in metabolic activity in a time-dependent manner. GR showed a significant decrease in terms of cell viability after 1 week of exposure and a greater expression of proapoptotic markers than BF and FU. High levels of proinflammatory cytokines were measured after 1 week of culture for GR. The inflammatory pathway was activated in a time-dependent manner. Pathway activation was material-dependent; among the tested composites, GR was found to be more cytotoxic than BF and FU. Despite the limitations of an in vitro study, these findings suggest that dental composite eluates cause time- and material-dependent cytotoxicity, inflammation, and apoptosis in hGFs. Exposure significantly impairs cellular metabolic activity from 24 h up to 1 week. Among the evaluated materials, the GR composite triggered a markedly severe inflammatory and apoptotic effect compared to BF or FU. Ultimately, these findings underscore the potential clinical importance of selecting materials with optimal biocompatibility to minimize adverse tissue reactions, although their direct translation into clinical practice would require further research.
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BibTeX
@article{sorrentino2026interleukin,
title = {{Interleukin Expression and Activation of Inflammatory/Apoptosis Pathways on Human Gingival Fibroblasts Exposed to Light-Cured Dental Composites}},
author = {Edoardo Sorrentino and Camillo D’Arcangelo and Antonella Mazzone and Luigia Fonticoli and Alessio Frisone and Ludovica Coppola and Emanuela Mazzon and Oriana Trubiani and Jacopo Pizzicannella and Guya Diletta Marconi and Francesca Diomede and Francesco De Angelis},
journal = {Polymers},
year = {2026},
month = oct,
doi = {10.3390/polym18202484},
url = {https://www.mdpi.com/2073-4360/18/20/2484},
note = {CC BY 4.0},
}
RIS
TY - JOUR
TI - Interleukin Expression and Activation of Inflammatory/Apoptosis Pathways on Human Gingival Fibroblasts Exposed to Light-Cured Dental Composites
AU - Edoardo Sorrentino
AU - Camillo D’Arcangelo
AU - Antonella Mazzone
AU - Luigia Fonticoli
AU - Alessio Frisone
AU - Ludovica Coppola
AU - Emanuela Mazzon
AU - Oriana Trubiani
AU - Jacopo Pizzicannella
AU - Guya Diletta Marconi
AU - Francesca Diomede
AU - Francesco De Angelis
PY - 2026
DA - 2026/10/11
JO - Polymers
DO - 10.3390/polym18202484
UR - https://www.mdpi.com/2073-4360/18/20/2484
AB - This in vitro study aimed to analyze the activation of the NFκB p65/MyD88/NALP3 inflammatory pathway and the expression of the BCL-2/BAX/Caspase-3 apoptosis pathway on human gingival fibroblasts (hGFs) after 24 h and 1-week exposure to the eluates of three light-cured commercial composites (GR: GrandioSO, VOCO; BF: Enamel Plus HRi Biofunction, Micerium; FU: Filtek universal restorative, 3M) and the production of pro-inflammatory cytokines (TNF-α, IL-6, IL-1β). A total of 50 light-cured disk-shaped specimens for each composite group (GR, BF and FU) were produced. The tested materials differed in resin matrix composition; notably, GR contained Bis-GMA, whereas BF and FU contained urethane-based dimethacrylates. The hGFs were exposed for 24 h and 1 week to eluates of each group. Pathway activation was evaluated by cell metabolic activity, immunofluorescence analysis and real-time PCR. Inflammatory effects were assessed in hGF culture by measuring proinflammatory cytokine production (ELISA). GR, BF and FU showed a reduction in metabolic activity in a time-dependent manner. GR showed a significant decrease in terms of cell viability after 1 week of exposure and a greater expression of proapoptotic markers than BF and FU. High levels of proinflammatory cytokines were measured after 1 week of culture for GR. The inflammatory pathway was activated in a time-dependent manner. Pathway activation was material-dependent; among the tested composites, GR was found to be more cytotoxic than BF and FU. Despite the limitations of an in vitro study, these findings suggest that dental composite eluates cause time- and material-dependent cytotoxicity, inflammation, and apoptosis in hGFs. Exposure significantly impairs cellular metabolic activity from 24 h up to 1 week. Among the evaluated materials, the GR composite triggered a markedly severe inflammatory and apoptotic effect compared to BF or FU. Ultimately, these findings underscore the potential clinical importance of selecting materials with optimal biocompatibility to minimize adverse tissue reactions, although their direct translation into clinical practice would require further research.
SN - 2073-4360
ER -