Figure 4From: Leptin/HER2 crosstalk in breast cancer: in vitro study and preliminary in vivoanalysis Expression of the leptin/ObR system in HER2-positive and -negative breast cancer. The expression of leptin and ObR was studied by IHC, as described in Materials and Methods in HER2-positive and HER-2-negative samples. The magnification level is 40x. Arrows indicate the example areas of leptin and ObR staining.Back to article page