<i>H. pylori</i> adhesion and internalization.

<p><b>A</b>. <b>Percentage of <i>H. pylori</i> adhesion and B. internalization in biliary (KKU-100 and KKU-M156) and gastric (AGS) cells incubated with <i>H. pylori</i> wild type, <i>cagA</i>^-, <i>cagL</i>^- or <i>cag</i>PAI^- mutant strains for 6 h</b>. <i>H. pylori</i> adhesion or internalization was determined by bacterial culture and interpreted as the percentage adherence or internalization compared with the starting number of <i>H. pylori</i>. Data represent the mean ± SEM in triplicate experiments. * <i>p</i> < 0.05 confirmed a significant difference between the <i>H. pylori</i> wild type internalization and <i>cag</i>PAI^- internalization. ^##<i>p</i> < 0.01 indicated a significant difference between <i>Shigella</i> internalization and <i>H. pylori</i> wild type internalization.