Moreover, reduced TGF-β1 concentration and significant differences between eosinophils that were subject to integrin-blocking and eosinophils that were not subject to integrin-blocking following a 24-h incubation suggest that integrin suppression may be a potential method to control eosinophil-induced TGF-β1 expression in ASM cells in asthma. This evidence concerns the gene TGFB1 and asthma.