Tau displays a strong growth-inhibitory effect on multiple cancer types including colon cancer [21,22], lung cancer [23], hepatocarcinoma [24], pancreatic cancer [25], glioma [26], melanoma [27], breast cancer [28,29,30,31], nasopharyngeal carcinoma [32], prostate cancer [33,34] and ovarian cancer [35]. This evidence concerns the gene MAPT and breast cancer.