Figure 4From: In vitromodeling of host-parasite interactions: the 'subgingival' biofilm challenge of primary human epithelial cellsCytokine production in biofilm-challenged HGEC cultures. (A) Supernatant IL-1 and IL-6 levels, and (B) IL-8 levels in challenged HGEC cultures and controls. Unchallenged cells were used as a negative control. Values represent the mean ± SD of triplicate ELISA assays performed after 4 and 24 h of co-culture.Back to article page