Cited by 344Cancer Immunotherapy and BiomarkersT-cell and B-cell ImmunologyImmunotherapy and Immune Responses

Systematic Immunotherapy Target Discovery Using Genome-Scale In Vivo CRISPR Screens in CD8 T Cells

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Dong, Matthew B., Wang, Guangchuan, Chow, Ryan D., Ye, Lupeng, Zhu, Lvyun, Dai, Xiaoyun, Park, Jonathan J., Kim, Hyunu R. +12 more·2019·Cell

Abstract

CD8 T cells play essential roles in anti-tumor immune responses. Here, we performed genome-scale CRISPR screens in CD8 T cells directly under cancer immunotherapy settings and identified regulators of tumor infiltration and degranulation. The in vivo screen robustly re-identified canonical immunotherapy targets such as PD-1 and Tim-3, along with genes that have not been characterized in T cells. The infiltration and degranulation screens converged on an RNA helicase Dhx37. Dhx37 knockout enhanced the efficacy of antigen-specific CD8 T cells against triple-negative breast cancer in vivo. Immunological characterization in mouse and human CD8 T cells revealed that DHX37 suppresses effector functions, cytokine production, and T cell activation. Transcriptomic profiling and biochemical interrogation revealed a role for DHX37 in modulating NF-κB. These data demonstrate high-throughput in vivo genetic screens for immunotherapy target discovery and establishes DHX37 as a functional regulator of CD8 T cells.

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Crossref · 10.1016/j.cell.2019.07.044

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  • Genome-scale pooled CRISPR loss-of-function screens allow forward genetic studies in many mammalian cell types, including primary T cells, where they have identified genes that may be targeted in future immunotherapies.

    “Genome-scale pooled CRISPR loss-of-function screens now allow forward genetic studies in many mammalian cell types (Wang et al., 2014; Shalem et al., 2014) including primary T cells where they have identified genes that may be targeted in future immunotherapies (Dong et al., 2019; Shifrut et al., 2018; Wei et al., 2019).”

    From Pooled Knockin Targeting for Genome Engineering of Cellular Immunotherapies (2020) · cites this paper as Dong et al., 2019

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Authors
Dong, M. B., Wang, G., Chow, R. D., Ye, L., Zhu, L., Dai, X., Park, J. J., Kim, H. R., Errami, Y., Guzman, C. D., Zhou, X., Chen, K. Y., Renauer, P. A., Du, Y., Shen, J., Lam, S. Z., Zhou, J. J., Lannin, D. R., Herbst, R. S., & Chen, S.
Affiliations
  • Yale University (US)
  • Yale Cancer Center (US)
Corresponding author
Chen, Sidi
Venue
Cell
Publisher
Elsevier BV
Published
2019-08
Volume
178
Issue
5
Pages
1189-1204.e23
ISSN
0092-8674 (ISSN-L)
OpenAlex
W2969378520
Cited by
330
References
116
Citations by year
2026: 27 · 2025: 63 · 2024: 54 · 2023: 44 · 2022: 60 · 2021: 43 · 2020: 37 · 2019: 2
FWCI
15.02
Type
journal article
Language
en
Open access
Locations
  • Cell (publishedVersion)
  • PubMed (publishedVersion)
  • PubMed Central (acceptedVersion)
Funders
National Institutes of Health
Topics
  • Health Sciences › Medicine › Oncology › Cancer Immunotherapy and Biomarkers
  • Life Sciences › Immunology and Microbiology › Immunology › T-cell and B-cell Immunology
  • Life Sciences › Immunology and Microbiology › Immunology › Immunotherapy and Immune Responses
Keywords
CD8+ T cells, cancer immunotherapy, in vivo CRISPR screen, tumor infiltration, T cell degranulation, PD-1, TIM-3, DHX37, RNA helicase, NF-κB signaling, triple-negative breast cancer, T cell effector function, cytokine production, T cell activation
MeSH terms
RNA, Guide, CRISPR-Cas Systems, Animals, Breast Neoplasms, Female, Humans, Immunologic Memory, Immunotherapy, Male, Cytokines, NF-kappa B, Mice, Knockout, CD8-Positive T-Lymphocytes, RNA Helicases, Cell Line, Tumor, Mice, Transcriptome, Programmed Cell Death 1 Receptor, Clustered Regularly Interspaced Short Palindromic Repeats

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