Dot-immunobinding assay as an accurate and versatile technique for the quantification of human IgG subclasses |
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Authors: | C M Jol-Van der Zijde J Labadie A Vlug J Radl J M Vossen M J Van Tol |
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Institution: | Department of Pediatrics, University Hospital, Leiden, The Netherlands. |
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Abstract: | A dot-immunobinding assay on nitrocellulose membranes has been developed for the quantification of human IgG subclasses using subclass-specific monoclonal antibodies. The advantages of this technique can be summarized as follows: (1) possibility of rapid semi-quantitative evaluation and/or precise quantitation from the same dot-pattern; (2) simple procedure with very good reproducibility; (3) sensitivity for nanogram concentrations of individual subclasses, therefore applicable not only to serum but also to other body fluids with a low content of IgG; (4) very small amounts of test material needed; (5) very good correlation of results with other techniques (ELISA, radial immunodiffusion) but without some of the inherent problems of the latter methods. |
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