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The aim of this study was to explore the effect of IL-29 on the progression of airway allergic disease by detecting the level of IL-29 in airway allergic cell models stimulated by house dust mite(HDM) in the presence or absence of dexamethasone(DEX). The same batch of human bronchial epithelial cells in exponential growth phase was randomly divided into five groups: blank group(A), 300 ng/m L HDM group(B), 1000 ng/m L HDM group(C), 3000 ng/m L HDM group(D), and 300 ng/m L HDM+100 ng/m L DEX group(E). The IL-29 m RNA expression was detected by quantitative reverse transcription polymerase chain reaction(q RT-PCR). The IL-29 protein expression in cell suspension was detected by ELISA. The results showed that after stimulation with HDM for 24 h, the expression of IL-29 was increased significantly, and after co-stimulation with HDM and DEX for 24 h, the expression of IL-29 in group E was significantly lower than that in the groups stimulated by HDM alone but higher than that in the group A. The differences between the different groups were significant(F=132.957, P<0.01). Additionally, the higher the concentration of HDM was, the more significant the increase in the IL-29 expression was. In conclusion, IL-29 may play a role in the progression of airway allergic disease including asthma.
The aim of this study was to explore the effect of IL-29 on the progression of airway allergic disease by detecting the level of IL-29 in airway allergic cell models stimulated by house dust mite (HDM) in the presence or absence of dexamethasone ( DEX). The same batch of human bronchial epithelial cells in exponential growth phase was randomly divided into five groups: blank group (A), 300 ng / ml HDM group (B), 1000 ng / ml HDM group 3000 ng / ml HDM group (D), and 300 ng / ml HDM + 100 ng / ml DEX group (E). The IL-29 m RNA expression was detected by quantitative reverse transcription polymerase chain reaction PCR). The results showed that after stimulation with HDM for 24 h, the expression of IL-29 was significantly increased, and after co-stimulation with HDM and DEX for 24 h, the expression of IL-29 in group E was significantly lower than that in the groups stimulated by HDM alone but higher than that in group A In addition, the higher the concentration of HDM was, the more significant the increase in the different groups were significant (F = 132.957, P <0.01). In conclusion, IL-29 may play a role in the progression of airway allergic disease including asthma.