DUSP6 and chronic obstructive pulmonary disease: In a study involving the pathogenesis of cigarette smoke-induced COPD, lncRNA TUG1 promoted airway inflammation and airway remodeling by downregulating miR-145-5p/dual-specificity phosphatase 6 (DUSP6) axis in CS extract (CSE)‐treated human bronchial epithelial cells and lung fibroblasts [100].