Influence of cetirizine and levocetirizine on two cytokines secretion in human airway epithelial cells

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Abstract:

Recent studies suggest that several second-generation antihistamines can modulate various inflammatory reactions besides their H1-receptor antagonism. The antihistamine cetirizine is a racemic mixture of levocetirizine and dextrocetirizine. The aim of this study was to investigate the effects of these two antihistamines (cetirizine and levocetirizine) on granulocyte-macrophage colony-stimulating factor (GM-CSF) and interleukin (IL)-8 secretion in A549 human airway epithelial cells. A549 cells were preincubated with cetirizine (0.1, 1, 2.5, 5, and 10 M) or levocetirizine (0.1, 1, 2.5, 5, and 10 M) individually for 16 hours and were then stimulated with IL-1beta for 8 hours. The levels of GM-CSF and IL-8 in cultured supernatants were measured by enzyme-linked immunosorbent assay (ELISA). Our data showed that cetirizine (5 and 10 M) and levocetirizine (2.5, 5, and 10 M) significantly suppressed GM-CSF secretion from A549 cells stimulated with IL-1 (p < 0.05). Cetirizine (10 M) and levocetirizine (5 and 10 M) significantly suppressed IL-8 secretion after A549 was stimulated. The suppressive effect was comparable between levocetirizine, 2.5 M, and cetirizine, 5 M, as well as levocetirizine, 5 M, and cetirizine, 10 M. Moreover, levocetirizine, 5 M, was better than cetirizine, 5 M, on suppressing IL-8 secretion, but such a difference did not appear in other conditions. Our results suggest that cetirizine and levocetirizine at higher concentrations can reduce the release of GM-CSF and IL-8 from A549 cells stimulated with IL-1. These observations indicate that the two second-generation antihistamines may exert anti-inflammatory effects beyond histamine H1-receptor antagonist, and levocetirizine plays a major role in terms of this activity.

Keywords: A549 cells; cetirizine; cytokines; granulocyte-macrophage colony-stimulating factor; interleukin-1beta; interleukin-8; levocetirizine; secondary generation antihistamines

Document Type: Research Article

DOI: http://dx.doi.org/10.2500/aap.2008.29.3156

Affiliations: 1: From the Division of Immunology and Nephrology, Department of Pediatrics, 2: Division of Chest Medicine, Department of Internal Medicine, Taichung Veterans General Hospital, Taichung, Taiwan, and , Institute of Medicine, Chung Shan Medical University, Taichung, Taiwan

Publication date: September 1, 2008

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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