CCND1 and infection: After infection with H. pylori strains, qRT-PCR results indicated a significant decrease of mRNA expression of CCND1 (Figure 2B, p < 0.001 for both J166 and 7.13 strains) and c-MYC (Figure 2C, p < 0.01 and p < 0.001 for J166 and 7.13 strains, respectively) in TFF1 expressing cells as compared to control cells.