In accordance with mRNA results and after infection with H. pylori strains, J166 and 7.13, Western blot analysis demonstrated a decrease of phospho-β-catenin (S552), β-catenin, c-Myc and cyclin D1 protein levels in MKN28 cells expressing TFF1 as compared to control cells (Figure 3A). This evidence concerns the gene MYC and infection.