What is the response profile of deciduous pulp fibroblasts stimulated withE. coliLPS andE. faecalisLTA?
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Data
2020-06-22
Autores
Colombini-Ishikiriama, Bella Luna
Dionisio, Thiago Jose
Garbieri, Thais Francini
Silva, Rafaela Alves da
Andrade Moreira Machado, Maria Aparecida
Penha de Oliveira, Sandra Helena [UNESP]
Lara, Vanessa Soares
Greene, Andrew Seth
Santos, Carlos Ferreira
Título da Revista
ISSN da Revista
Título de Volume
Editor
Bmc
Resumo
Background Oral fibroblast immunological responses to bacterial stimuli are well known. However, there are few studies about pulp fibroblasts from deciduous teeth (HDPF) responses, which are important for the treatment of pulp infections in children. The aim of this study was to evaluate expression and production of inflammatory cytokines and chemokines by HDPF when challenged with bacterial antigens normally present in advanced caries lesions. Methods Triplicate HDPF from 4 children (n = 4; 2 boys and 2 girls) were cultured by explant technique and challenged or not withEscherichia colilipopolysaccharide/1 mu g/mL(EcLPS)orEnterococcus faecalislipoteichoic acid/1 mu g/mL(EfLTA)for 6 and 24 h. Most of published studies employed immortalized cells, i.e., without checking possible gender and genetic variables. mRNA expression and protein production were evaluated by RT-qPCR and ELISA MILLIPLEX (R), respectively, for Interleukin (IL)-1 alpha, IL-1 beta, IL-2, IL-4, IL-6, IL-8, IL-10, IL-12, IL-17, Chemokine C-C motif ligand 2/monocyte chemoattractant protein 1 (CCL2/MCP-1), Chemokine C-C motif ligand 3/macrophage inflammatory protein 1-alpha (CCL3/MIP1-alpha), Chemokine C-C motif ligand 5/ regulated on activation, normal T cell expressed and secreted (CCL5/RANTES), C-X-C motif chemokine 12/ stromal cell-derived factor 1 (CXCL12/SDF-1), Tumor Necrosis Factor-alpha (TNF-alpha), Interferon-gamma (IFN gamma), Vascular Endothelial Growth Factor (VEGF), Colony stimulating factor 1 (CSF-1) and Macrophage colony-stimulating factor (M-CSF). Results EcLPSincreased IL-1 alpha, IL-1 beta, IL-8, CCL2, CCL5, TNF-alpha and CSF-1 mRNA and protein levels whileEfLTAwas only able to positively regulate gene expression and protein production of IL-8. Conclusion The results of the present study confirmed our hypothesis, since pulp fibroblasts from deciduous teeth are capable of increasing gene expression and protein production after being stimulated withEcLPSandEfLTA.
Descrição
Palavras-chave
Cytokines, Dental pulp, Fibroblasts and lipopolysaccharide
Como citar
Bmc Immunology. London: Bmc, v. 21, n. 1, 9 p., 2020.