CHI3L1 and asthma: Cultured cells: IL‐13 treated versus controls: 6522 CpG‐sites, 3771 genes: Notably TNXB (associated with multiple CpGs), CHI3L1 (asthma biomarker), POSTN & SERPINB2 (markers of Th2‐high asthma phenotype), overal significantly enriched for genes associated with asthma. Gene expression: ↓:48% ↑:52%