Fig. 3

HES1 promotes cell proliferation and regulates cellular apoptosis in vitro. a, b Forty-eight hours after siRNA transfection, HES1 expression in SACC cells was measured by real-time PCR (a) and western blotting (b). c, d After siRNA transfection, SACC cell proliferation was detected by CCK-8 (C, P < 0.001 on days 3, 4 and 5) and colony formation assay (d). e The percentages of early (Annexin V-positive and PI-negative) and late-apoptosis cells (Annexin V- and PI-positive) were analyzed by flow cytometry. F, The expression of the apoptosis-related genes CASP3 and CASP9 was measured by western blotting in HES1-knockdown cells