Serum CA199

The glycosyl antigen CA199 is a mucin-type glycoprotein tumor marker, which is a glycolipid on the cell membrane and named after being recognized by the murine monoclonal antibody 116NS19-9. It is the most sensitive marker for pancreatic cancer reported to date. It exists in the form of salivary mucin in serum, and is distributed in the normal fetal pancreas, gallbladder, liver, intestine, and normal adult pancreas, bile duct epithelium, etc. Gastrointestinal tumor-associated antigen present in the blood circulation.

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