title: Measurement of the concentration of murine IgG monoclonal antibody in hybridoma supernatants and ascites in absolute units by sensitive and reliable enzyme-linked immunosorbent assays (ELISA).
abstract: We have investigated an enzyme-linked immunosorbent assay (ELISA) for mouse IgG using affinity-purified goat anti-mouse antibodies for capture and detection. This assay was used to measure the absolute or weight/volume concentration of murine monoclonal antibody in hybridoma supernatants. Bovine or subclasses except IgG3 in the 1-20 ng/ml range. Antibody capture was essentially complete in the optimized assay. In combination with an antigen-dependent ELISA, the assay allowed estimation of the absolute concentration of specific monoclonal antibody in ascites. These rapid and relatively simple assays may be applicable in many situations in which a practical means of measuring murine monoclonal antibodies in weight/volume units is needed.
authors.affiliation: Department of Neurology, USC School of Medicine, Los Angeles 90033.
authors.forename: J O
authors.initials: JO
authors.lastname: Fleming
authors.forename: L B
authors.initials: LB
authors.lastname: Pen
mesh_terms: D000818:Animals; D000911:Antibodies, Monoclonal / Q000032:analysis*; D000914:Antibodies, Viral / Q000032:analysis; D001202:Ascitic Fluid / Q000276:immunology*; D004797:Enzyme-Linked Immunosorbent Assay / Q000379:methods*; D006041:Goats / Q000276:immunology; D006825:Hybridomas / Q000276:immunology*; D007074:Immunoglobulin G / Q000032:analysis* / Q000145:classification; D051379:Mice; D008807:Mice, Inbred BALB C / Q000276:immunology; D008810:Mice, Inbred C57BL / Q000276:immunology; D006517:Murine hepatitis virus / Q000032:analysis
chemical_list: D000911:Antibodies, Monoclonal; D000914:Antibodies, Viral; D007074:Immunoglobulin G