High-content CRISPR activation screens identify synthetically lethal RNA-based mechanisms to sensitize cancer cells to targeted T cell cytotoxicity (opens in new tab)

T cells recognize their target cells through the T cell receptor (TCR). Combining gain-of-function, single-cell and optical high-content screens, we identified RNA-based mechanisms that selectively sensitize target cells to TCR-specific T cell cytotoxicity. First, CRISPR activation screens in melanoma cells identify functionally diverse regulators of TCR-specific cytotoxicity, including SAFB, KHDRBS1, MYC, CD44, WNT3A, WNT1 and others. Expressing sensitizing hits in cancer and virally infecte...