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. 2017 Oct 30;15(1):109–114. doi: 10.3892/ol.2017.7293

Figure 4.

Figure 4.

The effect of combined SFN and gefitinib therapy on PC9GT cells was determined using a cell proliferation assay and western blotting. (A) Combined treatment markedly decreased PC9GT cell proliferation, when compared with SFN or gefitinib monotherapy, at 48 and 72 h (*P<0.05, compared with SFN, gefitinib and the control). (B) SFN combined with gefitinib markedly inhibited the expression of SHH, SMO, GLI1, CD133 and CD44 in PC9GT cells, as compared with SFN or gefitinib administered alone. SFN, sulforaphane; PC9GT, gefitinib-tolerant PC9 cells; EGFR, epidermal growth factor receptor; SHH, sonic hedgehog; SMO, Smoothened; GLI1, zinc finger protein GLI1.