Fiche publication
Date publication
janvier 2020
Journal
Frontiers in cell and developmental biology
Auteurs
Membres identifiés du Cancéropôle Est :
Pr GANGLOFF Sophie
,
Dr KERDJOUDJ Halima
Tous les auteurs :
Maisonneuve E, Chevrier J, Dubus M, Varin J, Sergheraert J, Gangloff SC, Reffuveille F, Mauprivez C, Kerdjoudj H
Lien Pubmed
Résumé
Cariogenic () is implicated in the dental pulp necrosis but also in cardiovascular tissue infections. Herein, the purpose was to elucidate how human dental pulp derived stromal cells (DPSCs) react toward a direct interaction with . DPSCs were challenged with . Following 3 h of interaction, DPSCs were able to internalize (rate < 1%), and F-actin fibers played a significant role in this process. persisted in the DPSCs for 48 h without causing a cytotoxic effect. was, however, able to get out of the DPSCs cytoplasm and to proliferate in the extracellular environment. Yet, we noticed several adaptive responses of bacteria to the extracellular environment such as a modification of the kinetic growth, the increase in biofilm formation on type I collagen and polyester fabrics, as well as a tolerance toward amoxicillin. In response to infection, DPSCs adopted a proinflammatory profile by increasing the secretion of IL-8, lL-1β, and TNF-α, strengthening the establishment of the dental pulp inflammation. Overall, these findings showed a direct impact of on DPSCs, providing new insights into the potential role of in infective diseases.
Mots clés
S. mutans, dental pulp derived stromal cells, inflammation, internalization, pathogenicity
