To investigate whether Akt isoform ablation had an effect on the cellular composition of the tumor, lung sections were stained with a surfactant protein C (SPC) specific antibody as a marker for ATII cells and a Clara cell secretory protein (CC10) specific antibody as a marker for non-ciliated secretory epithelial cells lining the primary bronchioles of the lung. The gene discussed is SCGB1A1; the disease is neoplasm.