in our studies cloned lung epithelial cells ( l2 cells ) , lung fibroblasts , and pulmonary artery endothelial cells were cultured under either ambient ( po ( 2 ) approximately 140 torr ) or hyperoxic ( po ( 2 ) approximately 630 torr ) conditions for 48 h ( 24 h for endothelial cells ) .
C0024109
lung
C0034052
pulmonary artery