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- Jensen, Poul Erik H., et al.
(author)
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Detection and kinetics of persistent neutralizing anti-interferon-beta antibodies in patients with multiple sclerosis : Results from the ABIRISK prospective cohort study
- 2019
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In: Journal of Neuroimmunology. - : Elsevier. - 0165-5728 .- 1872-8421. ; 326, s. 19-27
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Journal article (peer-reviewed)abstract
- Two validated assays, a bridging ELISA and a luciferase-based bioassay, were compared for detection of anti-drug antibodies (ADA) against interferon-beta (IFN-β) in patients with multiple sclerosis. Serum samples were tested from patients enrolled in a prospective study of 18 months. In contrast to the ELISA, when IFN-β-specific rabbit polyclonal and human monoclonal antibodies were tested, the bioassay was the more sensitive to detect IFN-β ADA in patients' sera. For clinical samples, selection of method of ELISA should be evaluated prior to the use of a multi-tiered approach. A titer threshold value is reported that may be used as a predictor for persistently positive neutralizing ADA.
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