Volume 124, Issue 1 pp. 134-141

Prophylactic and therapeutic effects of a humanized monoclonal antibody against the IL-2 receptor (DACLIZUMAB) on collagen-induced arthritis (CIA) in rhesus monkeys

H. P. M. Brok

H. P. M. Brok

Department of Immunobiology, Biomedical Primate Research Centre, Rijswijk,

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J. M. Tekoppele

J. M. Tekoppele

Division of Vascular and Connective Tissue Research, TNO Prevention and Health, Leiden,

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J. Hakimi

J. Hakimi

Department of Inflammation/Autoimmune Diseases, Hoffmann-La Roche Inc., Nutley, NJ, USA

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J. A. Kerwin

J. A. Kerwin

Department of Inflammation/Autoimmune Diseases, Hoffmann-La Roche Inc., Nutley, NJ, USA

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E. M. Nijenhuis

E. M. Nijenhuis

Department of Psychological and Research Methodology, Faculty of Social Sciences, Leiden University, Leiden, The Netherlands and

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C. W. De Groot

C. W. De Groot

Department of Immunobiology, Biomedical Primate Research Centre, Rijswijk,

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R. E. Bontrop

R. E. Bontrop

Department of Immunobiology, Biomedical Primate Research Centre, Rijswijk,

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B. A. ‘t Hart

B. A. ‘t Hart

Department of Immunobiology, Biomedical Primate Research Centre, Rijswijk,

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First published: 12 January 2002
Citations: 37
Dr Bert A. ‘t Hart, Biomedical Primate Research Centre, Department of Immunobiology, PO Box 3306, 2280 GH Rijswijk, The Netherlands.  E-mail: [email protected]

Abstract

CIA in the rhesus monkey is an autoimmune-based polyarthritis with inflammation and erosion of synovial joints that shares various features with human rheumatoid arthritis (RA). The close phylogenetic relationship between man and rhesus monkey makes the model very suitable for preclinical safety and efficacy testing of new therapeutics with exclusive reactivity in primates. In this study we have investigated the prophylactic and therapeutic effects of a humanized monoclonal antibody (Daclizumab) against the α-chain of the IL-2 receptor (CD25). When Daclizumab treatment was started well after immunization but before the expected onset of CIA a significant reduction of joint-inflammation and joint-erosion was observed. A therapeutic treatment, initiated as soon as the first clinical signs of CIA were observed, proved also effective since joint-degradation was abrogated. The results of this study indicate that Daclizumab has clinical potential for the treatment of RA during periods of active inflammation and suppression of the destruction of the joint tissues.

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