Fig. 3

Treatment-related infiltration of lymphocytes in bladders of female mice bearing tumors. No difference in the number of infiltrating CD4⁺ and CD8⁺ T cells was noted in any of the treatment groups compared to PBS control. No CD161/KLRB1 (NK) immune-positive cells were found in any group. Original magnification, ×200. Insert, panel positive and negative control cells from mouse spleen at ×400