CA242 is related to the sialylated Lewis (a) blood group antigen (CA19-9) and is found on the same mucin complex as CA50 and sialylated Lewis A (CA19-9), but it is chemically and immunologically distinct. CA242 and CA19-9 are co-expressed on different epitopes but on the same carbohydrate macromolecule and similar to CA19-9, CA242 is used as a tumor marker for the early diagnosis of pancreatic cancer. Compared to CA19-9, CA242 has high specificity but lower sensitivity in diagnosing pancreatic cancer and so it is generally used in combination with CA50 or CEA to optimize the assay performance.
Have questions about a product?
Contact us to learn more about Meridian’s molecular or immunoassay reagent portfolio. We want to hear from you!
Request a Sample
Get In Touch With A Specialist
Have questions about a product? Want to learn more about Meridian’s molecular or immunoassay reagent portfolio? We want to hear from you!