FUT2 and colorectal carcinoma: Interestingly, FUT2/3 showed a positive correlation with (A/B) LeB/Y antigens on GSL glycans, whereas no correlations were observed between FUT2/3 and LeB/Y antigens on N- and O-glycans (Fig. 3A), which might suggest GSLs as major substrates of GTs FUT2/3 for biosynthesis of LeB/Y antigens in CRC cell line.