title: Monoclonal antibody reactive with the sialyl-sugar residue of a high molecular weight glycoprotein in sera of cancer patients.
abstract: A monoclonal antibody, ST-4-39, was obtained by means of a unique immunization procedure using a gastric cancer xenograft as an immunogen. ST-4-39 reacted immunohistochemically with various cancers and a limited number of normal tissues. The antigen reactive with ST-4-39 was detected in sera of cancer patients, and possessed a molecular weight of greater than or equal to 1 X 10(6). The antigenic determinant was a sialyl-sugar residue different from sialyl-Lewis a recognized by NS 19-9.
mesh_terms: D000911:Antibodies, Monoclonal; D000951:Antigens, Neoplasm / Q000032:analysis*; D000939:Epitopes; D006023:Glycoproteins / Q000032:analysis* / Q000276:immunology; D006801:Humans; D008970:Molecular Weight; D010190:Pancreatic Neoplasms / Q000276:immunology*
chemical_list: D000911:Antibodies, Monoclonal; D000951:Antigens, Neoplasm; D000939:Epitopes; D006023:Glycoproteins