MUC1 and hepatocellular carcinoma: Additional examples of antigen masking include the inability of DCs to process and present post-translationally hypoglycosylated MUC1 (hgMUC1) to T cells [30] and the ability of the hepatocellular carcinoma (HCC)-derived fucosylated variant of the oncofoetal tumour antigen, α-fetoprotein (AFP), to reduce DC maturation marker levels, pro-inflammatory mediator expression, and dampen T cell proliferative responses [31].