The British Journal of Rheumatology, Vol 37, 484-490, Copyright © 1998 by British Society for Rheumatology
EH Choy, GH Kingsley and GS Panayi
Monoclonal antibodies bind to their targets with high specificity and
therefore have excellent potential as therapeutic agents. Biotechnological
advances have allowed the production of large quantities of engineered
monoclonal antibodies for therapeutic use. Recent research in rheumatoid
arthritis has identified important mediators of synovitis. Monoclonal
antibodies targeting these have been tested in clinical trials over the
last decade. Anti-cytokine therapies, in particular anti-tumour necrosis
factor alpha monoclonal antibodies, suppressed inflammation and produced
rapid symptomatic improvement. Anti-lymphocyte monoclonal antibodies
produced long- lasting disease suppression in animal models of rheumatoid
arthritis. The use of depleting anti-lymphocyte monoclonal antibodies in
rheumatoid arthritis had been disappointing as they did not penetrate the
synovial joint in sufficient quantity to suppress disease without producing
severe and protracted peripheral blood lymphopenia. Consequently, their use
in rheumatoid arthritis had been abandoned. In contrast, clinical trials of
non-depleting anti-CD4 monoclonal antibodies in rheumatoid arthritis showed
that they could suppress synovitis. However, it remains unclear whether
they could lead to prolonged disease improvement.
REVIEWS
Monoclonal antibody therapy in rheumatoid arthritis
Rheumatology Unit, Guy's Hospital, London.
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