Single-cell functional genomics reveals determinants of sensitivity and resistance to natural killer cells in blood cancers

Immunity. 2023 Dec 12;56(12):2816-2835.e13. doi: 10.1016/j.immuni.2023.11.008.

Abstract

Cancer cells can evade natural killer (NK) cell activity, thereby limiting anti-tumor immunity. To reveal genetic determinants of susceptibility to NK cell activity, we examined interacting NK cells and blood cancer cells using single-cell and genome-scale functional genomics screens. Interaction of NK and cancer cells induced distinct activation and type I interferon (IFN) states in both cell types depending on the cancer cell lineage and molecular phenotype, ranging from more sensitive myeloid to less sensitive B-lymphoid cancers. CRISPR screens in cancer cells uncovered genes regulating sensitivity and resistance to NK cell-mediated killing, including adhesion-related glycoproteins, protein fucosylation genes, and transcriptional regulators, in addition to confirming the importance of antigen presentation and death receptor signaling pathways. CRISPR screens with a single-cell transcriptomic readout provided insight into underlying mechanisms, including regulation of IFN-γ signaling in cancer cells and NK cell activation states. Our findings highlight the diversity of mechanisms influencing NK cell susceptibility across different cancers and provide a resource for NK cell-based therapies.

Keywords: CRISPR screening; CROP-seq; NK cell; cancer; functional genomics; immunotherapy resistance; leukemia; lymphoma; myeloma; single-cell RNA sequencing.

MeSH terms

  • Antigen Presentation
  • Cell Line, Tumor
  • Cytotoxicity, Immunologic / genetics
  • Genomics
  • Hematologic Neoplasms*
  • Humans
  • Killer Cells, Natural
  • Neoplasms* / genetics