Additional file 1: of The hypoxic tumor microenvironment in vivo selects the cancer stem cell fate of breast cancer cells

Figure S1. The hypoxia-sensing human breast cancer xenograft model. A FACS analysis of EGFP+ populations in the selected MDA-MB-231 cells stably expressing the HRE-EGPF reporter gene after exposure to hypoxia in vitro at 1% O2. B Co-localization of the EGFP+ tumor cells with immunofluorescent stains (red) of the Hypoxyprobe in MCF7/HRE-EGFP xenografts. (TIFF 9624 kb)