Abstract:The presence of tumor-infiltrating T cells is associated with favorable patient outcomes, yet most pancreatic cancers are immunologically silent and resistant to currently available immunotherapy. In this study, a syngeneic orthotopic implantation model of pancreatic cancer was used to show that PI3K/Akt signaling in tumor cells down-regulate immunogenicity to evade T cell surveillance. Genetic silencing of PI3K catalytic isoform Pik3ca in KrasG12D/Trp53R172H-driven pancreatic tumors leads to infiltration of T… Show more
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