Journal
RESPIRATORY RESEARCH
Volume 6, Issue 8-9, Pages -Publisher
BMC
DOI: 10.1186/1465-9921-6-9
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Funding
- NHLBI NIH HHS [2R01-HL064063, R01-HL55301, R01 HL064063, R01 HL055301] Funding Source: Medline
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Background: Growing evidence shows that interleukin 13 (IL-13) may play an essential role in the development of airway inflammation and bronchial hyper-responsiveness (BHR), two defining features of asthma. Although the underlying mechanisms remain unknown, a number of reports have shown that IL-13 may exert its deleterious effects in asthma by directly acting on airway resident cells, including epithelial cells and airway smooth muscle cells. In this report, we hypothesize that IL-13 may participate in the pathogenesis of asthma by activating a set of proasthmatic genes in airway smooth muscle (ASM) cells. Methods: Microarray technology was used to study the modulation of gene expression of airway smooth muscle by IL-13 and IL-13R130Q. TaqMan(TM) Real Time PCR and flow cytometry was used to validate the gene array data. Results: IL-13 and the IL-13 polymorphism IL-13R130Q (Arg130Gln), recently associated with allergic asthma, seem to modulate the same set of genes, which encode many potentially interesting proteins including vascular cellular adhesion molecule (VCAM)-1, IL-13R alpha 2, Tenascin C and Histamine Receptor H1, that may be relevant for the pathogenesis of asthma. Conclusions: The data supports the hypothesis that gene modulation by IL-13 in ASM may be essential for the events leading to the development of allergic asthma.
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