HNRNPD and chronic obstructive pulmonary disease: Changes in AUF-1 target expression in multiple epithelial COPD transcriptomic profiles - from lung tissue, bronchiolar epithelium and single-cell sequencing databases - are consistent with its relevant participation to epithelial responses during chronic inflammation and underscore the need of further knowledge on AUF-1 and general RBP-mediated gene regulation in human inflammatory diseases.