CAV1 and invasive breast carcinoma: Despite the controversy about the distribution of CAV1 and CAV2 in normal and invasive breast cancer (Yang et al, 1998; Hurlstone et al, 1999; Chen et al, 2004; Sagara et al, 2004; Park et al, 2005; Van den Eynden et al, 2006), recent studies confirmed the preferential expression of both genes and their proteins in normal myoepithelial cells (Pinilla et al, 2006; Savage et al, 2007, 2008).