Examples of such shared TFs between NEPC and SCLC subtypes included ASCL1, HOXB5, ETS2, ELF3, XBP1, and PROX1 (ASCL1 subtype), and NEUROD1, HES6, TCF4, NFIA, and JARID2 (NEUROD1 subtype). This evidence concerns the gene NEUROD1 and small cell lung carcinoma.