How lung epithelium and endothelium co-develop to maintain structural integrity of alveoli remains unclear. In this issue of Developmental Cell, Ellis et al. define how epithelial Vegfa directs development of a distinct endothelial cell population that ultimately plays a critical role in ensuring appropriate alveolar septation during alveologenesis.
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| http://dx.doi.org/10.1016/j.devcel.2020.02.009 | DOI Listing |
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