BSO+AUR sensitized HNSCC cells to Erlotinib.

<p>Confluent FaDu, Cal-27, SCC-25 and SQ20B cells were treated with 1 mM BSO and or 0.5 µM AUR in combination with 10 µM Erlotinib (ERL) for 24 h. Clonogenic cell survival data were normalized to control (CON) cells. Error bars represent the standard error of the mean (SEM) of N = 3 experiments. *, p<0.05 versus CON; ¥, p<0.05 versus CON, BSO and AUR; £, p<0.05 versus ERL; §, p<0.05 versus all other treatment groups.