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Cytokine expression in peripheral blood lymphocytes before and after aspirin desensitization in aspirin-exacerbated respiratory disease

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Aspirin intolerance is the hallmark of aspirin-exacerbated respiratory disease (AERD). Overproduction of cysteinyl-leukotrienes (Cys-LTs) has been implicated as major mediators of AERD; however, the LT receptor antagonist montelukast is only partially effective in inhibiting aspirin responses. Several studies have documented the importance of cytokine production by T lymphocytes in asthma. Peripheral blood lymphocyte (PBL) cytokine expression and its relation to aspirin desensitization in aspirin-sensitive patients with asthma have not been studied. This study was performed to examine PBL cytokine expression in aspirin-sensitive patients who have asthma before and after aspirin desensitization. A 42-year-old white woman with a history of severe asthma, nasal polyps, aspirin sensitivity, and chronic sinusitis was treated with aspirin desensitization. Blood was taken before and after aspirin desensitization, and PBL cytokine expression was studied by flow cytometry. Aspirin desensitization differentially affects interferon (IFN) gamma expression. This effect results in an increase in IFN-gamma expression by CD4+ lymphocytes and a decrease in IFN-gamma expression by CD8+ lymphocytes. Aspirin desensitization in an aspirin-sensitive patient with asthma resulted in an increase in IFN-gamma expression by CD4+ lymphocytes and a decrease in IFN-gamma expression by CD8+ lymphocytes, the significance of which needs additional investigation.
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Keywords: Aspirin desensitization; T lymphocyte; Th1 response; Th2 response; aspirin sensitivity; aspirin tolerance; aspirin-exacerbated respiratory disease; asthma; cytokine; interferon

Document Type: Research Article

Affiliations: 1: Division of Allergy and Immunology, Texas Tech University Health Sciences Center, Lubbock, Texas 2: Department of Microbiology and Immunology, Texas Tech University Health Sciences Center, Lubbock, Texas

Publication date: 01 November 2007

More about this publication?
  • Allergy and Asthma Proceedings is a peer reviewed publication dedicated to distributing timely scientific research regarding advancements in the knowledge and practice of allergy, asthma and immunology. Its primary readership consists of allergists and pulmonologists.

    The goal of the Proceedings is to publish articles with a predominantly clinical focus which directly impact quality of care for patients with allergic disease and asthma.

    Featured topics include asthma, rhinitis, sinusitis, food allergies, allergic skin diseases, diagnostic techniques, allergens, and treatment modalities. Published material includes peer-reviewed original research, clinical trials and review articles.

    Articles marked "F" offer free full text for personal noncommercial use only.

    The journal is indexed in Thomson Reuters Web of Science and Science Citation Index Expanded, plus the National Library of Medicine's PubMed service.
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