Fig. 3From: Blockage of glycolysis by targeting PFKFB3 suppresses tumor growth and metastasis in head and neck squamous cell carcinomaPFK15 suppresses cell proliferation, halts cell cycle and induces cell apoptosis in HNSCC cells. a PFK15 suppressed the colony formation of Cal27 cells in 2 weeks. b EdU incorporation assays indicated PFK15 inhibited the cell proliferation of Cal27 cells. c The quantitative data of the EdU incorporation assays. d PI staining revealed that PFK15 halted cell cycle progression and induced G2 phase arrest. e The quantitative data of cell cycle analysis based on Dean-Jett-Fox model. f Tumor sphere formation assays indicated PFK15 decreased the cancer stem cell population in Cal27 cells. g Annexin V-FITC/PI double staining demonstrated PFK15 induced moderate cell apoptosis of Cal27 cells. h TUNEL assays indicated PFK15 induced apoptotic cell death of Cal27 cells. i Protein expressions of phosphor-Rb (pRb), cyclin D1, Bcl2 and cleaved caspase3 (CL-caspase3) in PFK15 treated Cal27 cells were measured by western blots. Mean ± S.E.M.; **P < 0.01, ***P < 0.001Back to article page