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Original Articles

Pancreatic Juice Protein Associated with Chronic Pancreatitis and Adenocarcinoma of the Pancreas

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Pages 139-144 | Received 27 Dec 1982, Accepted 16 Apr 1983, Published online: 30 Apr 2018
 

Abstract

125I-protein-radioiodinated pure pancreatic juice samples from patients with adenocarcinoma of the pancreas, chronic pancreatitis, or intact pancreas were analysed by high-resolution SDS-polyacrylamide gel electrophoresis and subsequent autoradiography. Experiments resulted in the detection of a 180K protein, probably a glycoprotein, in the pure pancreatic juice from pancreatic carcinoma (93%) and chronic pancreatitis (73%) patients, which was completely absent from pancreatic juice from intact pancreas. Sephadex G-200-isolated 18UK protein was found to be different from carcinoembryonic antigen (CEA) when traced by a commercial CEA radioimmunoassay, but it seemed identical in pancreatic juice samples from patients with pancreatic carcinoma and chronic pancreatitis, at least with regard to isoelectric point. In brief, the present results suggest that 180K protein identification in pancreatic juice permits adenocarcinoma of the pancreas and chronic pancreatitis to be differentiated from normal conditions but that distinction between pancreatic carcinoma and chronic pancreatitis is unlikely.

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