Approaches to the production of monoclonal antibodies specific for concanavalin A binding and non-binding forms of alphafetoprotein. 1984

D J Brock, and L Barron, and V Van Heyningen

Attempts have been made to make monoclonal antibodies which would react preferentially with either the concanavalin A (con A) binding or non-binding from of human alphafetoprotein (AFP). Mice were immunised with con A non-binding AFP in a variety of schedules, and their spleens used in four separate fusions. Despite identification of 467 hybridomas secreting anti-AFP antibodies, no monoclonals could be found with consistent or reproducible specificity for either con A binding or non-binding AFP. Ten of the hybridomas were grown as ascitic tumours. The resulting ascitic fluids defined 4 discrete epitopes on the AFP molecule. There was no apparent difference in the binding of a particular monoclonal antibody to its target epitope in the con A binding and non-binding forms of AFP. This finding is discussed in the light of current knowledge of the molecular structure of the carbohydrate chains of con A binding and non-binding forms of AFP.

UI MeSH Term Description Entries
D003208 Concanavalin A A MANNOSE/GLUCOSE binding lectin isolated from the jack bean (Canavalia ensiformis). It is a potent mitogen used to stimulate cell proliferation in lymphocytes, primarily T-lymphocyte, cultures.
D006801 Humans Members of the species Homo sapiens. Homo sapiens,Man (Taxonomy),Human,Man, Modern,Modern Man
D000509 alpha-Fetoproteins The first alpha-globulins to appear in mammalian sera during FETAL DEVELOPMENT and the dominant serum proteins in early embryonic life. alpha-Fetoprotein,alpha Fetoprotein,alpha Fetoproteins
D000911 Antibodies, Monoclonal Antibodies produced by a single clone of cells. Monoclonal Antibodies,Monoclonal Antibody,Antibody, Monoclonal
D000918 Antibody Specificity The property of antibodies which enables them to react with some ANTIGENIC DETERMINANTS and not with others. Specificity is dependent on chemical composition, physical forces, and molecular structure at the binding site. Antibody Specificities,Specificities, Antibody,Specificity, Antibody
D000939 Epitopes Sites on an antigen that interact with specific antibodies. Antigenic Determinant,Antigenic Determinants,Antigenic Specificity,Epitope,Determinant, Antigenic,Determinants, Antigenic,Specificity, Antigenic

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