Cell-of-Origin, not Oncogenic Effect, Determines esmoplastic Immune Exclusion in KRAS-Driven Liver Cancer
This study demonstrates that in KRAS-driven liver cancer, the cell-of-origin (cholangiocyte versus hepatocyte) rather than the oncogenic driver itself dictates the formation of a desmoplastic, immune-excluded tumor microenvironment, a process mediated by cholangiocyte-specific secreted factors LAMC2 and uPA that activate cancer-associated fibroblasts.