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Cytokine and Anti-cytokine Therapies for Inflammatory Bowel Disease

Author(s): Haruhiko Ogata and Toshifumi Hibi

Affiliation: Department of InternalMedicine, Keio University School of Medicine, Tokyo, Japan

Abstract:

Although the pathogenesis of inflammatory bowel disease (IBD) remains elusive, it appears that there is chronic activation of the immune and inflammatory cascade in genetically susceptible individuals. Current disease management guidelines have therefore focused on the use of anti-inflammatory agents, aminosalicylates and corticosteroids. These conventional therapies continue to be a first choice in the management of IBD. Immunomodulators, such as azathioprine, 6-mercaptopurine, methotrexate or cyclosporin, are demonstrating increasing importance against steroid-resistant and steroid-dependent patients. However, some patients are still refractory to these therapies. Recent advances in the understanding of the pathophysiological conditions of IBD have provided new immune system modulators as therapeutic tools. Other immunosuppressive agents including FK506 and thalidomide have expanded the choice of medical therapies available for certain subgroups of patients. Furthermore, biological therapies have begun to assume a prominent role. Studies with chimeric monoclonal anti-TNF-α antibody treatment have been reported with dramatic successes. However, observations in larger numbers of treated patients are needed to explicate fully the safety of or risks posed by this agent such as developing lymphoma, or other malignancies. Another anti-inflammatory cytokinetherapy includes anti anti-IL-6R, anti-IL-12 or toxin-conjugated anti IL-7R, recombinant cytokines (IL-10 or IL-11). Given the diversity of proinflammatory products under its control, NF-κB may be viewed as a master switch in lymphocytes and macrophages, regulating inflammation and immunity. Although some of them still need more confirmatory studies, those immune therapies will provide new insights into cell-based and gene-based treatment against IBD in near future.

Keywords: cytokine, inflammatory bowel disease, crohns disease, ulcerative colitis

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Article Details

VOLUME: 9
ISSUE: 14
Page: [1107 - 1113]
Pages: 7
DOI: 10.2174/1381612033455035
Price: $58