Particulate matter-related ITIH4 deficiency is associated with an emphysema phenotype of COPD through JNK-dependent and JNK-independent signalling. - Wu SM; Chen KY; Chuang HC; Ho SC; Lin CW; Han CL; Sun WL; Feng PH; Lin SF; Chen YH; Chen TT; Tseng CH; et al. (The European respiratory journal, 2025)