Piórkowska et al. reported that Parvalbumin (PVALB), calcium and integrin-binding family member 2 (CIB2), choline phosphotransferase 1 (CHPT1), transcription factor Dp-2 (TFDP2) and breast cancer anti-estrogen resistance protein 3 (BCAR3) were DE amid pigs of Polish Landrace and Pulawska breeds [12]. This evidence concerns the gene BCAR3 and breast cancer.