Induction of expression of HGF and c-Met by H. pylori (ATCC43504 strain) in (A) non-malignant GES-1 and (B) malignant AGS gastric cell lines, as determined by western blotting and quantified in the histograms. *P<0.05 vs. 0h group. HGF, hepatocyte growth factor; CNGS, chronic gastritis; IM, intestinal metaplasia; Dysp, dysplasia; GC, gastric cancer.