Statistical analysis
All data were analyzed with GraphPad Prism 7 software (GraphPad Software, La Jolla, Calif). Fisher’s exact test, Mann-Whitney U test and Wilcoxon signed-rank test were used to analyze differences between two groups. Two-way ANOVA was used to analyzed differences between hNECs with or without IL-13 treatment. Fold change was quantified with reference to untreated hNECs. Data were presented as Mean ± SEM or Median with interquartile range (25%-75%). Correlation analysis was performed using Spearman r characteristic. P <.05 was considered statistically significant.