Our previous study focusing on TNF‐related apoptosis‐inducing ligand (TRAIL) signalling in EoE employed silencing (si)‐RNA technology to downregulate the expression of Midline (MID)‐1 in the oesophagi of Aspergillus fumigatus (A. fumigatus)‐challenged mice.7 The gene discussed is TNFSF10; the disease is eosinophilic esophagitis.