Figure 1From: Upregulation of Claudin-4, CAIX and GLUT-1 in distant breast cancer metastases Representative IHC staining in primary breast tumors (left; no membrane staining for Claudin-4, CAIX and GLUT-1 (significant negative to positive conversion), positive membrane staining for EGFR and IGF1R (negative to positive conversion n.s.) and metastases (right; positive membrane staining). Magnification: 20× (inlet 40×).Back to article page