Article
Tumor heterogeneity and clonal cooperation influence the immune selection of IFN-γ-signaling mutant cancer cells.
Nature communications - 30 Jan 2020
Williams Jason B, Li Shuyin, Higgs Emily F, Cabanov Alexandra, Wang Xiaozhong, Huang Haochu, Gajewski Thomas F
Abstract excerpt
PD-1/PD-L1 blockade can promote robust tumor regression yet secondary resistance often occurs as immune selective pressure drives outgrowth of resistant tumor clones. Here using a genome-wide CRISPR screen in B16.SIY melanoma cells, we confirm Ifngr2 and Jak1 as important genes conferring sensitivity to T cell-mediated killing in vitro. However, when implanted into mice, these Ifngr2- and Jak1-deficient tumors...
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