Rheumatology Advance Access originally published online on May 20, 2008
Rheumatology 2008 47(7):1104-1105; doi:10.1093/rheumatology/ken175
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© The Author 2008. Published by Oxford University Press on behalf of the British Society for Rheumatology. All rights reserved. For Permissions, please email: journals.permissions@oxfordjournals.org
Rituximab is effective in the treatment of refractory Churg–Strauss syndrome and is associated with diminished T-cell interleukin-5 production
1Renal Section, Division of Medicine, Imperial College London, Hammersmith Hospital, 2Moorfields Eye Hospital, London and 3Renal Unit, Addenbrooke's Hospital, Cambridge, UK
Correspondence to: A. D. Salama, Renal Section, Division of Medicine, Imperial College London, Hammersmith Hospital, Ducane Road, London W12 0NN, UK. E-mail: A.salama@imperial.ac.uk
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SIR, Churg–Strauss syndrome (CSS) is a necrotizing small-vessel vasculitis characterized by eosinophil recruitment and inflammation. IL-5 is a Th2 cytokine implicated in the pathogenesis of CSS by mediating eosinophil maturation, chemotaxis and adhesion to the vascular endothelium. Elevated levels of IL-5 are found in patients with active CSS, demonstrating that T-cell activation correlates with disease activity [1, 2]. Traditionally, treatment of CSS has consisted of immunosuppression with corticosteroids, and in more severe cases, the addition of agents such as AZA or cyclophosphamide