Research Article: Elevated serum CA199 levels in patients suffering type 2 diabetes vs. various types of cancer
Introduction:
Carbohydrate antigen 199 (CA199) is a type of mucin protein that serves as a tumor marker and is found on the glycolipids of cell membranes. It was named CA199 because it was identified and isolated through its binding affinity to the mouse monoclonal antibody 116NS19-9 [1]. CA199 is a member of the Lewis antigen family and a standard tumor marker [2]. The serum CA199 level is elevated in cancer patients, especially in digestive system tumors such as pancreatic, liver, colon, and rectal [3].
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