Figure 7

Histological and immunohistochemical appearance of tumors from CT26 cell-injected mice. Mice were subcutaneously injected with CT26 cells into the right flank. Four days later, mice were treated with either PBS (control) or EGCG for 7 days. (A) H & E staining and immunohistochemical staining of PCNA, HSP70, and HSP90 for tumor sections. (B) The levels of HSP70 and HSP90 in the lysates of tumor tissues were analyzed by Western blot analysis. Western blot data were quantified by densitometry. The data were expressed as the mean ± SD of three individual experiments.