KL and neoplasm: Our analysis of tumor RNA-seq data from the mouse AST model (KrasG12D/+; Lkb1fl/fl, KL) showed that multiple epigenetic regulators including LSD1 (lysine-specific histone demethylase 1, also known as KDM1A) were up-regulated in squamous lesions compared to adenomatous lesions (Fig. S7E).