Fig. 4From: Type IV secretion of Helicobacter pylori CagA into oral epithelial cells is prevented by the absence of CEACAM receptor expressionIL-8 secretion is demonstrated for all four infected cell lines. Cells were infected with all seven H. pylori strains and the isogenic mutant as above and after 6 h the medium was subjected to ELISA to quantify secreted IL-8, for AGS (a), HN (b), CAL-27 (c) and BHY (d) cells (ns, not significant)Back to article page