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- Title
Induction of interleukin-8 gene expression by black-pigmented Bacteroides in human pulp fibroblasts and osteoblasts.
- Authors
Yang, L.‐C.; Huang, F.‐M.; Lin, C.‐S.; Liu, C.‐M.; Lai, C.‐C.; Chang, Y.‐C.
- Abstract
Yang L-C, Huang F-M, Lin C-S, Liu C-M, Lai C-C, Chang Y-C. Induction of interleukin-8 gene expression by black-pigmented Bacteroides in human pulp fibroblasts and osteoblasts. International Endodontic Journal, 36, 774–779, 2003. To investigate the effect of black-pigmented Bacteroides on the expression of interleukin (IL)-8 gene in human pulp fibroblasts and osteoblasts. The supernatants of Porphyromonas endodontalis, P. gingivalis and Prevotella intermedia were used to evaluate IL-8 gene expression in human pulp fibroblasts and osteoblasts. The levels of mRNAs were measured by the quantitative reverse transcriptase-polymerase chain reaction (RT-PCR) analysis. Investigations of the time-dependence of IL-8 mRNA expression in black-pigmented Bacteroides-treated pulp fibroblasts and osteoblasts revealed a rapid accumulation of the transcript after 2 h of exposure, and remained elevated throughout the 24-h incubation period. In addition, IL-8 mRNA gene expression was also found in human osteoblasts stimulated with black-pigmented Bacteroides. However, black-pigmented Bacteroides was found to be more effective in the induction of IL-8 mRNA gene expression in osteoblasts than in pulp fibroblasts ( P < 0.05). Black-pigmented Bacteroides are capable of amplifying the local immune response and promoting pulpal/periapical tissue inflammation by stimulating pulp fibroblasts and osteoblasts to express IL-8.
- Subjects
BACTEROIDES; INTERLEUKIN-8; FIBROBLASTS
- Publication
International Endodontic Journal, 2003, Vol 36, Issue 11, p774
- ISSN
0143-2885
- Publication type
Article
- DOI
10.1046/j.1365-2591.2003.00740.x