IL6 and asthma: Interestingly, IL‐6, which is shown to be increased following fibrocyte/ASM co‐culture both in this study and by Lin et al. in 2014,19 can prime smooth muscle contraction in rat models and enhance ASM cell contraction in the presence of mast cells that are localised to ASM in asthma and implicated in AHR.23, 24, 25, 26