Boonyanit ThaweboonSroisiri ThaweboonSuwan ChoonharuangdejPrapan SuppakpatanaMahidol University2018-08-202018-08-202006-12-01Southeast Asian Journal of Tropical Medicine and Public Health. Vol.37, No.3 (2006), 523-527012515622-s2.0-33845764285https://repository.li.mahidol.ac.th/handle/20.500.14594/23408The objective of this study was to determine the effects of Prevotella intermedia, Fusobacterium nucleatum and Lactobacillus casei on the production of IL-8 by human dental pulp cells. Human dental pulp cells from teeth of young patients (aged 18-25 years) were cultured and tested with sonicated P. intermedia ATCC 25611, F. nucleatum ATCC 25586 and L. casei ATCC 4646 extracts. IL-8 secreted into the culture supernatants were measured at 6, 12 and 24 hours using a quantitative sandwich enzyme immunoassay technique. Cell viability was evaluated using trypan blue exclusion technique. IL-8 production by human dental pulp cells increased significantly at 12 and 24 hours after exposure to P. intermedia and F. nucleatum, whereas L. casei extract exhibited low IL-8 production. The sonicated bacterial extracts did not significantly affect viability or total number of dental pulp cells.Mahidol UniversityMedicineEffects of sonicated Prevotella intermedia, Fusobacterium nucleatum and Lactobacillus casei extracts on interleukin-8 production by human dental pulp cellsArticleSCOPUS