FUT8 expression was found to be associated with a poor prognosis, advanced tumour stage and type of molecular classification (positive progesterone receptor and oestrogen receptor status), but was less associated with histological grade in breast cancer (BC) 21, 68, and two core fucosylated and agalactosylated glycans (m/z 1591, 1794) in IgG can clearly distinguish stage II patients from NCs 69. This evidence concerns the gene FUT8 and breast cancer.