title: Indirect immunofluorescence labelling with complexes of phycoerythrin and monoclonal anti-phycoerythrin antibodies (PEAPE complexes).
abstract: We describe a method of immunofluorescence which is a lateral application of the principles of the APAAP immunohistochemical technique. Immune complexes of R-phycoerythrin and monoclonal anti-R-phycoerythrin (PEAPE complexes) were used in an indirect immunofluorescence technique to detect the binding to cells of monoclonal antibodies directed to IgM, HLA-DR and B cell activation and differentiation antigens. PEAPE complexes were linked to cell surface bound mAbs by unlabelled anti-mouse Ig antibodies to produce high levels of fluorescent staining. The sensitivity of this method of indirect immunofluorescence was enhanced by the sequential application of several cycles of anti-mouse Ig and PEAPE complexes.
mesh_terms: D000818:Animals; D000911:Antibodies, Monoclonal / Q000276:immunology*; D000936:Antigen-Antibody Complex; D000954:Antigens, Surface / Q000032:analysis; D005455:Fluorescent Antibody Technique; D006801:Humans; D051379:Mice; D010799:Phycoerythrin / Q000276:immunology*; D010860:Pigments, Biological / Q000276:immunology*
chemical_list: D000911:Antibodies, Monoclonal; D000936:Antigen-Antibody Complex; D000954:Antigens, Surface; D010860:Pigments, Biological; D010799:Phycoerythrin