Native Human Cancer Antigen 19-9
Native Human Cancer Antigen 19-9 was purified from Human Liver Metastases.
Cancer Antigen 19-9 is a tumor marker elevated in blood of patients with carcinoma of the gastro-intestinal tract. Primarily used distinguishing pancreatic cancer from pancreatitis, CA 19-9 is not sufficiently specific for use as a cancer screening test. The specificity for pancreatic cancer increases with increasing levels, high levels showing a specificity of >97% for tumor presence. CA 19-9 can be elevated in many types of gastrointestinal cancer, such as colorectal cancer, esophageal cancer and hepatocellular carcinoma.
Human Liver Metastases
Liquid in phosphate buffered saline, pH 7.4 with sucrose and 0.05% sodium azide
Typically > 500 kU/mL (Roche Elecsys EIA)
Store at -20 centigrade.