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Sensitive radioimmunoassay for detection of antibodies to recombinant human interferon-alpha A

Journal Article · · J. Interferon Res.; (United States)

A radioimmunoassay (RIA) for the detection of antibodies to recombinant human leukocyte interferon A (rHuIFN-alpha A) in human serum has been developed and validated against the standard antiviral neutralization bioassay (ANB). The assay measures the binding of /sup 125/I-labeled rHuIFN-alpha A to immunoglobulins in serum. Aliquots of patients' sera are incubated with /sup 125/I-rHuIFN-alpha A and the complexes formed between antibodies in the sera and the /sup 125/I-rHuIFN-alpha A are precipitated with goat anti-human IgG serum. The radioactivity in the immune precipitate is a measure of the quantity of antibody (if present) in the serum. The sensitivity of this RIA is 5 ng of IgG/ml of serum.

Research Organization:
Hoffmann-La Roche Inc., Nutley, NJ
OSTI ID:
6409021
Journal Information:
J. Interferon Res.; (United States), Journal Name: J. Interferon Res.; (United States) Vol. 6; ISSN JIRED
Country of Publication:
United States
Language:
English