COL17A1 and pancreatic adenocarcinoma: These genes include many not previously associated with pancreatic adenocarcinoma, such as galectin-4 (LGALS4), mucin 13 (MUC13), secretory leukocyte protease inhibitor (SLPI), collagen 17A1 (COL17A1), and ropporin 1-like (ROPN1L).