Carbohydrate Antigen 19-9 (CA19-9)

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sialylated Lewis(a)Antigen; Cancer Antigen 19-9

Carbohydrate Antigen 19-9 (CA19-9)

CA19-9 is a blood test from the tumor marker category. It was discovered in patients with colon cancer and pancreatic cancer in 1981. Increased levels of CA19-9 are also found in non-malignant conditions, such as Mirizzi's syndrome and diseases of the bile ducts and liver. Guidelines from the American Society of Clinical Oncology discourage the use of CA19-9 as a test for cancer, particularly pancreatic cancer. The main use of CA19-9 is therefore to see whether a pancreatic tumor is secreting it; if that is the case, then the levels should fall when the tumor is treated, and they may rise again if the disease recurs.In patients who lack the Lewis antigen, which is about 5% of the population, CA19-9 is not elevated in pancreatic cancer even with large tumors because they have a deficiency of a fucosyltransferase enzyme that is needed to produce CA19-9 as well as the Lewis antigen.

Organism species: Homo sapiens (Human)

CATALOG NO. PRODUCT NAME APPLICATIONS
Proteins RPA156Hu01 Recombinant Carbohydrate Antigen 19-9 (CA19-9) Positive Control; Immunogen; SDS-PAGE; WB.
Antibodies PAA156Hu01 Polyclonal Antibody to Carbohydrate Antigen 19-9 (CA19-9) WB; IHC; ICC; IP.
LAA156Hu71 Biotin-Linked Polyclonal Antibody to Carbohydrate Antigen 19-9 (CA19-9) WB; IHC; ICC.
LAA156Hu81 FITC-Linked Polyclonal Antibody to Carbohydrate Antigen 19-9 (CA19-9) WB; IHC; ICC; IF.
MAA156Hu21 Monoclonal Antibody to Carbohydrate Antigen 19-9 (CA19-9) WB; IHC; ICC; IP.
Assay Kits SEA156Hu ELISA Kit for Carbohydrate Antigen 19-9 (CA19-9) Enzyme-linked immunosorbent assay for Antigen Detection.
SCA156Hu CLIA Kit for Carbohydrate Antigen 19-9 (CA19-9) Chemiluminescent immunoassay for Antigen Detection.