Scientific evidence of a tumour suppressive role of Caveolin-1 in breast cancer supported by some researchers [26] is contrasted by recent results which strengthen the role of Caveolin-1 overexpression to promote certain steps of tumourigenesis: Caveolin-1 has been shown to inhibit anoikis in MCF7 breast cancer cells [27]. This evidence concerns the gene CAV1 and breast cancer.