Isolation of glycoprotein antigen from ascites fluid of pancreatic carcinoma.
Cancer Res
; 37(5): 1525-9, 1977 May.
Article
en En
| MEDLINE
| ID: mdl-856467
ABSTRACT
A glycoprotein antigen from the ascites fluid of pancreatic carcinoma has been isolated with the use of perchloric acid extraction and chromatographies on Sepharose 4B, DEAE-Sephadex, and DE52, followed by Sephadex G-200. The purified glycoprotein was found to be homogenous by sodium dodecyl sulfate polyacrylamide gel electrophoresis. A molecular weight of 185,000 dattons was determined by gel filtration. The molecule contained 55% protein and 45% carbohydrate. Both the amino acid and carbohydrate compositions were different from those of carcinoembryonic antigen. This glycoprotein antigen of pancreatic cancer cross-reacted with anticarcinoembryonic antigen; however, the antiserum prepared from this antigen did not react with carcinoembryonic antigen. The biological significance of this glycoprotein in pancreatic cancer is being studied.
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Bases de datos:
MEDLINE
Asunto principal:
Neoplasias Pancreáticas
/
Glicoproteínas
/
Antígenos de Neoplasias
Límite:
Humans
Idioma:
En
Revista:
Cancer Res
Año:
1977
Tipo del documento:
Article