MUC5AC and neoplasm: At the histo-pathological evaluation (H&E, Fig 7C–7F) in control mice, tumor xenographts were composed of densely packed tumor cells (Fig 7C mixed-IHCCA, Fig 7E mucin-IHCCA) while in mice treated with Abraxane or NVP-BEZ235 (Fig 7D mixed-IHCCA, Fig 7F mucin-IHCCA) necrotic areas were seen within the tumor mass.