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Antisense interleukin-5 reduces eosinophil infiltration and hyperrespon-siveness in an allergic asthma model.
Article in English | IMSEAR | ID: sea-136273
ABSTRACT
Interleukin-5 (IL-5) involves in the development of airway inflammation and hyperresponsiveness through activation of eosinophils. Thus, inhibition of IL-5 expression seems to be an attractive approach for asthma therapy. In this study, an antisense IL-5 gene transferred by recombinant adeno-associated virus (asIL-5) was constructed to transfect murine allergic asthma model. Our results showed that asIL-5 efficiently inhibited the IL-5 mRNA expression and significantly attenuated the inflammation in lung tissues. Significant decreasing of eosino-phils and inflammatory cells were found in peripheral blood and bronchoalveolar lavage fluid (BALF). In addition, significant inhibition of airway hyperresponsiveness (AHR) was also found in the mice treated with asIL-5. These observations demonstrate that antisense oligonucleotid against IL-5 delivered by adeno-associated virus system is possibly an efficacious therapeutic strategy for allergic asthma and other eosinophil-related disorders.
Full text: Available Index: IMSEAR (South-East Asia) Language: English Year: 2009 Type: Article

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Full text: Available Index: IMSEAR (South-East Asia) Language: English Year: 2009 Type: Article