Figure 1.

Sensitivity to erlotinib in cell lines. Sensitivity to EGFR tyrosine kinase inhibitors was determined by treating cells with 1 μM erlotinib for 72 hours under serum-starved conditions. Apoptosis was assessed by integration of the sub-G1 peak and compared to cells treated with equal volume of vehicle (DMSO). Experiments were repeated in triplicate with error bars representing standard deviation. : denotes statistical significance (p < 0.05, two sided t-test for unequal variances).

Balko et al. BMC Genomics 2006 7:289   doi:10.1186/1471-2164-7-289
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