PLEKHA7 and breast carcinoma: Here we aimed to characterize the expression and localization of PLEKHA7 in human breast carcinomas, based on the notions that i) PLEKHA7 participates in the stabilization of the E-cadherin-associated zonular junctional protein complex, and ii) E-cadherin plays a fundamental role in the formation and metastatic spread of epithelial tumors.