HG/miR-137 reduces viability and proliferation of HTR-8/Svneo cells. The viability and proliferation of HTR-8/SVneo cells were assessed using CCK-8 and colony formation assays. LV-NC and LV-miR-137 HTR-8/SVneo cell groups were treated with normal and HG medium for 10 days for the colony formation assay. (A) Images of the colony formation assay. (B) miR-137/HG suppressed proliferation of HTR-8/SVneo cells. (C) CCK-8 assay demonstrated decreased viability of miR-137-overexpressing HTR-8/SVneo cells. Data are presented as the mean ± standard error of the mean; statistical significance (P<0.05) was determined using Student's t-test, **P<0.01, ***P<0.001. CCK-8, Cell Counting Kit-8; HG, high glucose; miR-137, microRNA-137; LV, lentiviral vector; NC, negative control.