Fig. 4From: Upregulation of IL-15 in the placenta alters trophoblasts behavior contributing to gestational diabetes mellitusIL-15 promoted trophoblasts proliferation in vitro. a The proliferation of HTR8/SVneo, JEG-3 and JAR in different groups was measured using CCK-8 assay. b, c Representative images of colony formation and mean number of colonies formed of HTR8/SVneo, JEG-3 and JAR in different groups. **P < 0.01, ***P < 0.001Back to article page