Next, we dissected the mice and found tumor nodules only in the lungs of the combined treatment group of urethane and LNC CRYBG3 (Table S2), which were confirmed pathologically as lung adenocarcinoma and carried the biomarkers CK7/ TTF-1, which is highly specific for lung adenocarcinoma (Fig. 1D). Here, KRT7 is linked to lung adenocarcinoma.