The effects of miR-203 on invasion and related molecule expressions in SGC7901 cells. SGC7901 cells were transfected with miR-203 mimic or inhibitor. (A) The level of miR-203 analyzed by qRT-PCR. (B) The invasion of SGC7901 cells was assessed by Transwell assay. (C) Levels of total MMP-2, MMP-9, and TIMP-1 were detected in the culture supernatants of cultured SGC7901 cells by ELISA assay. (D) The protein expressions of MMP-2, MMP-9, and TIMP-1 were examined by Western blot. All data are presented as mean ± SEM, n = 4. #p < 0.05, ##p < 0.01, ###p < 0.001 versus miR-NC or inhibitor-NC.