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. Author manuscript; available in PMC: 2009 Oct 12.
Published in final edited form as: Mol Cancer Ther. 2007 Dec;6(12 Pt 1):3271–3278. doi: 10.1158/1535-7163.MCT-07-0352

Figure 1. Activity of compounds in pheophorbide a screening assay.

Figure 1

The compounds listed were assayed for their ability to cause ABCG2-overexpressing cells (NCI-H460/MX20 cells) to accumulate PhA. Each compound was tested at 10 μM (final concentration - bars) and, after resupply, in a dose-response format. Activity for each compound was normalized to the response of 10 μM FTC control wells on the same plate. Error bars represent se (n = 7-9). IC50 values are averages of duplicate determinations for each dose.