Oral epithelial cell responses to multispecies microbial biofilms

J Dent Res. 2013 Mar;92(3):235-40. doi: 10.1177/0022034512472508. Epub 2013 Jan 8.

Abstract

This report describes the use of a novel model of multispecies biofilms to stimulate profiles of cytokines/chemokines from oral epithelial cells that contribute to local inflammation in the periodontium. Streptococcus gordonii (Sg)/S. oralis (So)/S. sanguinis (Ss) and Sg/Fusobacterium nucleatum (Fn)/Porphyromonas gingivalis (Pg) biofilms elicited significantly elevated levels of IL-1α and showed synergistic stimulatory activity compared with an additive effect of the 3 individual bacteria. Only the Sg/Actinomyces naeslundii (An)/Fn multispecies biofilms elicited IL-6 levels above those of control. IL-8 was a primary response to the Sg/An/Fn biofilms, albeit the level was not enhanced compared with a predicted composite level from the monospecies challenges. These results represent some of the first data documenting alterations in profiles of oral epithelial cell responses to multispecies biofilms.

Publication types

  • Research Support, N.I.H., Extramural

MeSH terms

  • Biofilms* / growth & development
  • Cell Line, Transformed
  • Cytokines / biosynthesis*
  • Epithelial Cells / microbiology
  • Fusobacterium nucleatum / physiology
  • Host-Pathogen Interactions*
  • Humans
  • Interleukin-1alpha / biosynthesis
  • Interleukin-6 / biosynthesis
  • Microbial Consortia / physiology*
  • Mouth Mucosa / cytology
  • Mouth Mucosa / metabolism
  • Mouth Mucosa / microbiology*
  • Periodontitis / microbiology*
  • Porphyromonas gingivalis / physiology
  • Streptococcus / physiology

Substances

  • Cytokines
  • Interleukin-1alpha
  • Interleukin-6