The inhibition of miR-30b increased esophageal cancer cell proliferation, inhibited cell apoptosis, and promoted cell migration. TE-1 cells were transfected with miR-30b inhibitor and inhibitor control, while TE-2 cells were transfected with miR-30b mimic and mimic control. A: The expression levels of miR-30b in different transfected cells. B: MTT assay showing the cell viability of different transfected cells. C: Colony formation assay showing the colony formation number of different transfected cells. D: Flow cytometry showing the apoptotic cells in different transfected groups. E: The Western blot showing the expression of BAX/BCL2 in different transfected cells. F: Transwell assay showing the number of migratory cells in different transfected groups. Compared with corresponding control, *P<0.05, **P<0.01 and ***P<0.001.