1. Greater induction of apoptosis following EGFR TKI treatment correlates with higher basal BIM expression across a panel of EGFR-mutant lung cancers.
Greater induction of apoptosis following EGFR TKI treatment correlates with higher basal BIM expression across a panel of EGFR-mutant lung cancers. A, indicated EGFR-mutant lung cancer cell lines were treated with (+TKI) or without (−TKI) 1 μM gefitinib (2 μM CL-387,785 for H1975 cells) for 24 hours and lysates were probed with the indicated antibodies. Red type indicates high BIM-expressing cells, blue indicates low BIM-expressing cells. B, BIM RNA levels were quantified by qRT-PCR, normalized to β-actin, and plotted against the amount of apoptosis induced by the TKI (over vehicle-control) as determined by annexin FACS. Both RNA values and apoptosis are the mean of at least 3 experiments (see Supplementary Table S1). For linear regression analysis, the r2 value was 0.83 and P =
Anthony C. Faber et al. Cancer Discovery 2011;1:
©2011 by American Association for Cancer Research