Increased immunostaining for NQO1 in 16HBE cells following treatment with β-lapachone.

<p>16HBE cells were treated with DMSO or β-lapachone (10μM) for the indicated times then processed for immunocytochemistry and confocal analysis as described in <i>Materials and Methods</i>. Immunostaining for NQO1 was performed under non-denaturing conditions using the A180 antibody combined with DAPI nuclear staining.</p>