Considering mucin autoantibodies as potential biomarkers in CRC patients, Pedersen et al. developed an array comprising of glycopeptides and glycoproteins corresponding to a MUC1, MUC2, MUC4, MUC5AC, MUC6 and MUC7 for seromic profiling of CRC patients [295]. Here, MUC4 is linked to colorectal carcinoma.