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Interleukin-5 Messenger RNA Expression in Peripheral Blood Mononuclear Cells From Patients with Bronchial Asthma and Eosinophilia

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Interleukin-5 (IL-5) plays an important role in allergic diseases accompanied by eosinophilia. We examined IL-5 messenger RNA (mRNA) expression in peripheral blood mononuclear cells (PBMC) isolated from 13 patients with bronchial asthma, 1 patient with chronic eosinophilic pneumonia, 2 patients with idiopathic eosinophilia, and 5 control subjects. IL-5 mRNA was expressed in PBMC from 2 of 13 patients with asthma, 1 patient with chronic eosinophilic pneumonia, and 1 of 2 patients with idiopathic eosinophilia. IL-5 mRNA expression was not detected in PBMC from control subjects. PBMC from a patient with chronic eosinophilic pneumonia expressed IL-5 mRNA spontaneously. Prednisolone treatment decreased his clinical symptoms and IL-5 mRNA expression. IL-5 mRNA expression preceded revival of the disease. These observations show that IL-5 plays a role in the condition, accompanied by eosinophilia, and IL-5 mRNA examination in PBMC by means of reverse transcription-polymerase chain reaction may be useful to predict the activity of eosinophilia.
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Document Type: Regular Paper

Publication date: 2002-05-01

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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