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Comparison between the effect of Lin28A overexpression in the mesenchymal and the epithelial cells of the lungs. A) Lungs of Wt1-Cre–derived transgenic embryos and their littermate controls stained with H&E (upper panel) or anti-PDPN (red) and anti-proSFTPC (green) (lower panel). B) Lungs of Nkx2.1-Cre–derived transgenic embryos and their littermate controls stained with H&E (upper panel) or anti-PDPN (red) and anti-proSFTPC (green) (lower panel). Blue, DAPI. Scale bars, 25 μM.
