Figure 3From: The influence of P-glycoprotein expression and its inhibitors on the distribution of doxorubicin in breast tumors Distribution of doxorubicin in solid tumors. Murine AR1 tumors were treated with either doxorubicin (A) or PSC 833 and doxorubicin (C). Similarly, BC19 xenografts were treated with either doxorubicin (B) or PSC 833 and doxorubicin (D). Doxorubicin is shown in blue and blood vessels are shown in red. (Scale bars = 100 μm)Back to article page