Fig. 1

c-MET and PDGFRα signals are crucial for the proliferation of SS cells. a Phosphorylation status of RTKs in 3 SS cell lines. b Yamato-SS (3 × 10³), SYO-1 (5 × 10³) and HS-SY-II (1 × 10⁴) cells were transfected with siRNAs against c-MET. Transfected cells were cultured for 96 h and relative cell proliferation rates were measured using a WST-1 assay. Bars represent the SD. * p < 0.05. c Growth of Yamato-SS (3 × 10³), SYO-1 (5 × 10³) and HS-SY-II (1 × 10⁴) cells transfected with siRNAs against PDGFRα. Relative cell proliferation rates were determined using a WST-1 assay after 96 h. Bars represent the SD. * p < 0.05