Fig. 2

HER2 down-regulation induces autophagy in primary and dormant tumor cells in vivo. (A) HER2 and p62 levels evaluated by western blotting in orthotopic MTB/TAN primary tumors in the presence of doxycycline or following doxycycline withdrawal for 2 d. β-tubulin is shown as a loading control. (B) Representative images of subcellular localization of EGFP-LC3 in MTB/TAN primary orthotopic tumors or orthotopic tumors subjected to 2 d or 28 d of doxycycline withdrawal. Original magnification, x400