A: Immunofluorescent staining of BRAFV600E and KRASG12D driven lung tumors using antibodies against Surfactant Protein C (SP-C, red) and Aquaporin 5 (AQP5, green).
B: Electron microscopy image of a BRAFV600E-driven lung tumor demonstrating AT2-like cells with prominent lamellar body (red arrow). Bar represents 2μm.
C: BRAFV600E- driven tumors from mice either wild type or null for AQP5 stained with anti-AQP5 antiserum.