Fig. 3
From: Bronchoscopic biopsies - a novel source for primary airway epithelial cells in respiratory research
Cell morphology before and after air exposure. Cell morphology after thawing (day 0). After the expansion phase (day 8), cells were approximately 80–90% confluent and were transferred to the inserts. The morphology of airway epithelial cells during cultivation after 1, 2, and 3 weeks in ALI. Scale bar 100 μm