Thus, FASN is overexpressed in breast cancer [11] but also in many other types of cancers: colorectal [12], prostate [13], stomach [14], esophageal [15], lung [16], pancreatic [17], ovarian [18], hepatic [19, 20], melanoma [21], glioma [22] and in primary effusion lymphoma (PEL) [23]. This evidence concerns the gene FASN and breast cancer.