Interestingly, the FGFR1/3-specific inhibitor PD173074 not only exhibited a similar inhibitory effect on macrophage-induced BCC growth as BGJ398 (Fig. 7a,b) but also caused a loss of pERK1/2 and pAKT (Fig. 7c). Here, FGFR1 is linked to skin basal cell carcinoma.