| Disturbed Cytokine Production at the Systemic Level in Difficult-to-Control Atopic Asthma: Evidence for Raised Interleukin-4 and Decreased Interferon-γ Release following Lipopolysaccharide Stimulation. | |
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MedLine Citation:
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PMID: 22205180 Owner: NLM Status: Publisher |
Abstract/OtherAbstract:
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Background: Disturbed cytokine production is thought to govern inflammation in asthma, which, in its turn, may lead to uncontrolled disease. The aim of this study was to assess the relationship between cytokine production from blood leucocytes and the level of asthma control. Methods: We compared the production of interleukin (IL)-4, IL-6, IL-10, interferon (IFN)-γ and tumour necrosis factor-α from peripheral blood leucocytes in non-atopic healthy subjects (n = 22), atopic non-asthmatics (n = 10), well-controlled asthmatics [Juniper asthma control questionnaire (ACQ) score <1.5; n = 20] and patients with uncontrolled asthma despite inhaled or oral corticoids (ACQ score ≥1.5; n = 20). Fifty microlitres of peripheral blood was incubated for 24 h with RPMIc, lipopolysaccharide (LPS; 1 ng/ml) or phytohaemagglutinin (1 μg/ml), and cytokines were measured by immunotrapping (ELISA). Results: Both controlled and uncontrolled asthmatics as well as atopic non-asthmatics spontaneously produced more IL-4 than non-atopic healthy subjects (p < 0.001). IL-4 production induced by LPS was significantly greater (p < 0.05) in both asthma groups compared to atopic non-asthmatics and non-atopic healthy subjects. By contrast, IFN-γ release induced by LPS was lower in uncontrolled asthmatics than in non-atopic healthy subjects (p < 0.05) and controlled asthmatics (p < 0.05). IL-10 release after LPS was greater in uncontrolled asthmatics than in atopic non-asthmatics (p < 0.05). No difference was observed regarding other cytokines. Conclusion: Blood cells from patients with difficult-to-control atopic asthma display highly skewed Th2 cytokine release following LPS stimulation. |
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Authors:
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M Manise; F Schleich; V Quaedvlieg; C Moermans; M Henket; J Sele; J L Corhay; R Louis |
Publication Detail:
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Type: JOURNAL ARTICLE Date: 2011-12-28 |
Journal Detail:
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Title: International archives of allergy and immunology Volume: 158 ISSN: 1423-0097 ISO Abbreviation: - Publication Date: 2011 Dec |
Date Detail:
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Created Date: 2011-12-29 Completed Date: - Revised Date: - |
Medline Journal Info:
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Nlm Unique ID: 9211652 Medline TA: Int Arch Allergy Immunol Country: - |
Other Details:
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Languages: ENG Pagination: 1-8 Citation Subset: - |
Copyright Information:
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Copyright © 2011 S. Karger AG, Basel. |
Affiliation:
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Department of Respiratory Medicine, CHU Sart-Tilman, GIGA Research Group i3, Liège, Belgium. |
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From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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