Western blotting was performed as described in previous publications 76 (link)–78 (link). Antibodies used were rabbit anti-human FOXM1 (1:1000, 5436; Cell Signaling Technology), rabbit anti-human cyclin B1 (1:1000, 12231, Cell Signaling Technology), and rabbit anti-human β-actin (1:2000, 4970; Cell Signaling Technology). Resultant immunological bands were observed using the ChemiDoc XRS Plus System (Bio-Rad Laboratories). The intensity of the bands was quantified using ImageJ software (National Institutes of Health, Bethesda, MD). Uncropped, full-length original gel images are shown in Supplementary Figs. S1 and S2.
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