Abstract | BACKGROUND:
Antihistamines have been evaluated for usefulness in the treatment of asthma for more than 50 years. Interest was limited until the introduction of newer compounds that were free of much of the dose-limiting sedation associated with the earlier drugs. OBJECTIVE: METHODS: Mice were sensitized and challenged to an allergen, ovalbumin, which elicited marked airway and tissue eosino-philia and airway hyperresponsiveness. Fexofenadine was administered before challenge, and airway responsiveness to inhaled methacholine, airway and tissue eosinophilia, bronchoalveolar lavage fluid cytokine levels, and serum IgE levels were assayed. In a second group of experiments, sensitized and challenged mice were treated or not treated with fexofenadine before challenge. T cells were isolated from the lungs and adoptively transferred into naive recipients before exposure to limited airway allergen challenge, and lung function and inflammation were evaluated. RESULTS:
Fexofenadine treatment of sensitized mice prevented the development of airway hyperresponsiveness in both the primary sensitization and challenge, as well as in the adoptive transfer experiments. These changes were accompanied by decreases in bronchoalveolar lavage and tissue eosinophilia, lymphocyte numbers, and T(H)2 cytokine production. CONCLUSION:
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Authors | Erwin W Gelfand, Zhi-Hua Cui, Katsuyuki Takeda, Arihiko Kanehiro, Anthony Joetham |
Journal | The Journal of allergy and clinical immunology
(J Allergy Clin Immunol)
Vol. 110
Issue 1
Pg. 85-95
(Jul 2002)
ISSN: 0091-6749 [Print] United States |
PMID | 12110826
(Publication Type: Journal Article, Research Support, Non-U.S. Gov't, Research Support, U.S. Gov't, P.H.S.)
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Chemical References |
- Allergens
- Anti-Allergic Agents
- Cytokines
- Terfenadine
- fexofenadine
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Topics |
- Adoptive Transfer
- Allergens
(immunology)
- Animals
- Anti-Allergic Agents
(pharmacology, therapeutic use)
- Bronchial Hyperreactivity
(drug therapy, immunology, physiopathology)
- Bronchoalveolar Lavage Fluid
(cytology, immunology)
- Cytokines
(biosynthesis)
- Disease Models, Animal
- Female
- Inflammation
(drug therapy, immunology, physiopathology)
- Lung
(cytology)
- Mice
- Mice, Inbred BALB C
- T-Lymphocytes
(drug effects, immunology, metabolism)
- Terfenadine
(analogs & derivatives, pharmacology, therapeutic use)
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