MTOR and colorectal carcinoma: FUT6 was associated with the cell adhesion and metastasis mediated by E-selectin in CRC cells, which might be attributed to the regulation of α1, 3-fucosylation of E-selectin ligand, CD44, further triggering phosphoinositide 3-kinase (PI3K)/protein kinase B (AKT)/mammalian target of rapamycin (mTOR) pathway.77