MAP2K7 and neoplasm: To investigate how the loss of TAp73 contributes to tumor progression and to correlate tumor grading by GLASS-AI with molecular indicators of progression, we performed immunohistochemistry (IHC) for phosphorylated Mek (p-Mek) and phosphorylated Mapk/Erk (p-Erk) on mouse lung sections with adjacent H&E sections graded by GLASS-AI.