Relative expression of miR-10b and KLF4 mRNA in gastric tumor cells. The expression levels of miR-10b was substantially up-regulated in MGC-803, AGS, BGC-823, MKN-45, SGC-7901 cells while the expression levels of KLF4 mRNA was inversely down regulated in MGC-803, AGS, BGC-823, MKN-45, SGC-7901 cells one by one.