Tumorigenicity assay in nude mice.
A: The growth rates of tumors formed from untransfected MFE-296 cells (MFE-296) and MFE-296 cells transfected with NC (MFE-296/NC) or shFOXA1 (MFE-296/shFOXA1). After injection, tumor volumes were calculated every seven days. B and C: Six weeks after injection of MFE-296, MFE-296-NC, and MFE-296-shFOXA1 cells, tumors were removed, and the tumor weights and volumes were determined. Arithmetic means and SD are shown. D: Staining with hematoxylin and eosin (H&E) or immunohistochemical staining for FOXA1, AR, Notch1, Hes1, Ki67, and PCNA in mouse tumor tissues (immunohistochemical staining, 200×). *p < 0.05 compared with the NC group.