To view this video please enable JavaScript, and consider upgrading to a web browser that supports HTML5 video Movie 1. 3D reconstructed self-renewing organoid to show cell arrangement. Stained with F-actin (yellow), SOX9 (magenta) and DAPI (blue). RTK signalling promotes epithelial columnar cell shape and apical junction maintenance in human lung progenitor cells Shuyu Liu, Dawei Sun, Richard Butler, and Emma L. Rawlins Development 2023. 150:None-None; doi: 10.1242/dev.201284 Download Original Video