RT Journal Article SR Electronic T1 Epithelial–mesenchymal transition in lung development and disease: does it exist and is it important? JF Thorax JO Thorax FD BMJ Publishing Group Ltd and British Thoracic Society SP 760 OP 765 DO 10.1136/thoraxjnl-2013-204608 VO 69 IS 8 A1 Domokos Bartis A1 Nikica Mise A1 Rahul Y Mahida A1 Oliver Eickelberg A1 David R Thickett YR 2014 UL http://thorax.bmj.com/content/69/8/760.abstract AB Epithelial–mesenchymal transition (EMT) is a process when epithelial cells gradually transform into mesenchymal-like cells losing their epithelial functionality and characteristics. EMT is thought to be involved in the pathogenesis of numerous lung diseases ranging from developmental disorders, fibrotic tissue remodelling to lung cancer. The most important question—namely what is the importance and contribution of EMT in the pathogenesis of several chronic lung conditions (asthma, COPD, bronchiolitis obliterans syndrome and lung fibrosis)—is currently intensely debated. This review gives a brief insight into the mechanism and assessment methods of EMT in various pulmonary diseases and summarises the recent literature highlighting the controversial experimental data and conclusions.