FGF19 amplification in liver cancer cell lines is associated with response to NVP-BGJ398. FGF19 amplification in liver cancer cell lines is associated.

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FGF19 amplification in liver cancer cell lines is associated with response to NVP-BGJ398. FGF19 amplification in liver cancer cell lines is associated with response to NVP-BGJ398. A, scatter plot showing the correlation between FGF19 copy number and transcript expression of FGF19, FGFR4, and β-Klotho (KLB) in liver cancer cell lines. B, effect of NVP-BGJ398 on FGFR downstream signaling as measured by FRS2 Tyr-phosphorylation and Erk1/2 activation by Western blot analysis after 40 minutes of FGFR inhibitor treatment. Expression of α-actinin indicates equal loading. C, effect of 3 different shRNAs targeting FGFR4 in JHH7 cells upon induction with doxycycline (Dox), compared with a nontargeting shRNA. FGFR4 expression and FRS2 Tyr-phosphorylation are shown in doxycycline-induced and noninduced cell lines. Western blot analysis shows α-actin as a loading control. D, effect of FGFR4 downregulation on monolayer cell proliferation assays at day 7 after cell seeding. Vito Guagnano et al. Cancer Discovery 2012;2:1118-1133 ©2012 by American Association for Cancer Research