qPCR	Quantitative real-time PCR
EMT	epithelial-mesenchymal transition
Gas6	growth arrest-specific protein 6
ECs	epithelial cells
PGE2	prostaglandin E2
ECM	extracellular matrix
IPF	idiopathic pulmonary fibrosis
TAM	Tyro3/Axl/Mer
ATII	alveolar type II
COX-2	cyclooxygenase-2
FBS	foetal bovine serum
EP2	E-prostanoid-2 receptor
HPRT	hypoxanthine-guanine phosphoribosyltransferase
ELISA	enzyme-linked immunosorbent assay
ERK	extracellular signal-regulated kinase
HCC	hepatocellular carcinoma
DMEM	Dulbecco’s modified Eagle’s medium
TGF	transforming growth factor