Expression of CXCR4 and CB2 receptors in primary breast cancer tissues and cell lines.

(A) Representative photomicrographs of immunohistochemical staining of primary breast cancer tissues showing CXCR4 and CB2 staining. Scale bars 50 µm and 200 µm. (B). FACS analysis of cell surface expression of CXCR4 and CB2 in MCF-7/CXCR4, SCP2 and MMTV-neu (NT 2.5) cells.