A rapid radioassay for human IgG produced in lymphocyte in vitro culture systems

Protein A bearing Staphylococcus aureus was used to develop a solid-phase radioassay for IgG immunoglobulins. The assay was specifically optimised for use with in vitro human lymphocyte culture work. Compared with a solid-phase radioimmunoassay for IgG produced in lymphocyte culture, this assay had similar performance profile and the advantages of rapidly and technical ease.