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Antibodies to Interferon Beta in Patients With Multiple Sclerosis Receiving Cinnovex, Rebif, and Betaferon Publisher Pubmed



Zare N1 ; Zarkeshesfahani SH2, 3 ; Gharagozloo M1 ; Shaygannejad V4
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Authors Affiliations
  1. 1. Deparment of Immunology, School of Medicine, Isfahan University of Medical Sciences, Isfahan, Iran
  2. 2. Deparment of Immunology, School of Medicine, Applied Physiology Research Center, Isfahan University of Medical Sciences, Isfahan, Iran
  3. 3. Department of Biology, Faculty of Sciences, University of Isfahan, Isfahan, Iran
  4. 4. Department of Neurology, School of Medicine, Isfahan University of Medical Sciences, Isfahan, Iran

Source: Journal of Korean Medical Science Published:2013


Abstract

Treatment with interferon beta (IFN-β) induces the production of binding antibodies (BAbs) and neutralizing antibodies (NAbs) in patients with multiple sclerosis (MS). NAbs against IFN-β are associated with a loss of IFN-β bioactivity and decreased clinical efficacy of the drug. The objective of this study was to evaluate the incidence and the prevalence of binding antibodies (BAbs) and neutralizing antibodies (NAbs) to IFN-β in MS patients receiving CinnoVex, Rebif, or Betaferon. The presence of BAbs was studied in serum samples from 124 MS patients using one of these IFN-β medications by ELISA. The NAbs against IFN-β were measured in BAb-positive MS patients receiving IFN-β using an MxA gene expression assay (real-time RT-PCR). Of the 124 patients, 36 (29.03%) had BAbs after at least 12 months of IFN-β treatment. The proportion of BAb+ was 38.1% for Betaferon, 21.9% for Rebif, and 26.8% for CinnoVex. Five BAb-positive MS patients were lost to follow-up; thus 31 BAb-positive MS patients were studied for NAbs. NAbs were present in 25 (80.6%) of BAb-positive MS patients receiving IFN-β. In conclusion, the three IFN-β preparations have different degrees of immunogenicity. © 2013 The Korean Academy of Medical Sciences.
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