Abstract
TNFalpha is expressed in high amounts at the site of inflammation in ankylosing spondylitis, which provided the basis to initiate treatment studies with TNF-blocking agents. We could show that the immunological effects of infliximab and etanercept differ in patients with AS, although the clinical effect was similarly good. While infliximab induced a downregulation of the production of the T-helper 1-cytokines IFNgamma and TNFalpha, etanercept treatment triggered rather an upregulation of these cytokines secreted by T cells after in vitro stimulation.
MeSH terms
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Antibodies, Monoclonal / therapeutic use*
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Antirheumatic Agents / therapeutic use*
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Down-Regulation
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Etanercept
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Humans
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Immunoglobulin G / therapeutic use*
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Infliximab
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Interferon-gamma / metabolism
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Receptors, Tumor Necrosis Factor / therapeutic use*
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Spondylitis, Ankylosing / drug therapy*
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Spondylitis, Ankylosing / immunology*
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Spondylitis, Ankylosing / physiopathology
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Treatment Outcome
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Tumor Necrosis Factor-alpha / antagonists & inhibitors*
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Tumor Necrosis Factor-alpha / metabolism
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Up-Regulation
Substances
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Antibodies, Monoclonal
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Antirheumatic Agents
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Immunoglobulin G
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Receptors, Tumor Necrosis Factor
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Tumor Necrosis Factor-alpha
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Interferon-gamma
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Infliximab
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Etanercept