part_of part of part of lung development cell-cell signaling involved in lung development epithelial-mesenchymal cell signaling epithelial-mesenchymal cell signaling involved in lung development 2010-05-05T11:14:38Z epithelial-mesenchymal cell signalling involved in lung development GO:0061111 biological_process Any process that results in the transfer of information from an epithelial cell to a mesenchymal cell and contributes to the progression of the lung over time from its initial formation to the mature organ.