MUC1 and gastric cancer: In gastric cancer tissues, a large variety of oligosaccharides have been detected, including both sialylated and fucosylated core 1 and 2 structures as well as large amount of oligosaccharides on MUC1 with α6-linked sialic acid, (NeuAcα6)GalNAc-ol and Galβ3(NeuAcα6)GalNAc-ol [36].