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Immunoassays that measure glycosylation-related changes in CRC
| Assay | GlycoEpitope | Changes in CRC | Clinical utility |
| CEA (150–152) | CD66 family of glycoproteins | Elevated in certain cases of CRC | Limited or no utility |
| CA19-9 (153–155) | Sialyl-LewisA | Elevated in metastatic CRC | Limited or no utility |
| CA-125 (156–158) | Heavily O-glycosylated MUC16 | Unclear or mixed results | May be useful for prognostication |
CEA, carcinoembryonic antigen; CRC, colorectal cancer; MUC16, Mucin-16.
