267 Adapting orthotopic murine models of pancreatic cancer to enhance adoptive T cell immunotherapy by Gregory B Lesinski, Chrystal M Paulos, Cameron Herting, Maggie Phillips, Megan M Wyatt, Natalie K Horvat, Jacklyn Hammons, Isaac Karpovsky, Zaid Mahdi

823 Repurposing CD26/DPP4 inhibitors to enhance immunotherapy response in pancreatic ductal adenocarcinoma by Thomas Mace, Gregory B Lesinski, Chrystal M Paulos, Michael Ware, Olatunji Alese, Juan Sarmiento, Shishir Maithel, Maggie Phillips, Megan M Wyatt, Natalie K Horvat, Jacklyn Hammons, Bassel FEl Reyes

1507 The Galectin-9-Tim-3 pathway is a novel checkpoint target for patients with biliary tract cancer by Yuan Liu, Gregory B Lesinski, Chrystal M Paulos, Shishir Maithel, Brian Robinson, Megan M Wyatt, Jacklyn Hammons, Emilie AK Warren, Jessica Keilson, Guillermo O Rangel-Rivera, Caroline R Goel, Curtis J Henry, Sarah Kulkarni, Alyssa Krasinskas

629 Neoadjuvant SEMA4D inhibitor pepinemab combination with nivolumab increases crosstalk between B cell and CD26hi T cell in patients with resectable stage III melanoma by Brian Burns, Elizabeth Evans, Ragini Kudchadkar, Crystal Mallow, Christine Reilly, Maurice Zauderer, Gregory B Lesinski, Keith A Delman, Chrystal M Paulos, Brian Olson, Terrence Fisher, Jayden Kim, Michael C Lowe, Ayana T Ruffin, Jacklyn Hammons, Agnes Harutyunyan, Melinda Yushak, Ali Mokhtari, Douglas Parker