Cited by 970Cancer Immunotherapy and BiomarkersImmunotherapy and Immune ResponsesT-cell and B-cell Immunology

The DOI matches its Crossref record; 61 of the 62 references it cites were found in a registry or an index; none of the 21 sources its claims cite is checked for support yet.

Successful Anti-PD-1 Cancer Immunotherapy Requires T Cell-Dendritic Cell Crosstalk Involving the Cytokines IFN-γ and IL-12

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Abstract

&NA; Anti‐PD‐1 immune checkpoint blockers can induce sustained clinical responses in cancer but how they function in vivo remains incompletely understood. Here, we combined intravital real‐time imaging with single‐cell RNA sequencing analysis and mouse models to uncover anti‐PD‐1 pharmacodynamics directly within tumors. We showed that effective antitumor responses required a subset of tumor‐infiltrating dendritic cells (DCs), which produced interleukin 12 (IL‐12). These DCs did not bind anti‐PD‐1 but produced IL‐12 upon sensing interferon &ggr; (IFN‐&ggr;) that was released from neighboring T cells. In turn, DC‐derived IL‐12 stimulated antitumor T cell immunity. These findings suggest that full‐fledged activation of antitumor T cells by anti‐PD‐1 is not direct, but rather involves T cell:DC crosstalk and is licensed by IFN‐&ggr; and IL‐12. Furthermore, we found that activating the non‐canonical NF‐&kgr;B transcription factor pathway amplified IL‐12‐producing DCs and sensitized tumors to anti‐PD‐1 treatment, suggesting a therapeutic strategy to improve responses to checkpoint blockade. Graphical Abstract Figure. No caption available. HighlightsEffective anti‐PD‐1 anti‐tumor responses require IL‐12‐producing dendritic cellsAnti‐PD‐1 indirectly activates IL‐12 through IFN‐&ggr; produced from CD8+ T cellsAgonizing the non‐canonical NF‐&kgr;B pathway enhances dendritic cell IL‐12 productionCombining aPD‐1 with non‐canonical NF‐&kgr;B agonism enhances checkpoint immunotherapy &NA; Anti‐PD‐1 mAbs can induce sustained clinical responses in cancer but how they function in vivo remains incompletely understood. Garris et al. show that effective anti‐PD‐1 immunotherapy requires intratumoral dendritic cells (DCs) producing IL‐12. Anti‐PD‐1 indirectly activates DCs through IFN‐&ggr; released from drug‐activated T cells. Furthermore, agonizing the non‐canonical NF‐&kgr;B pathway activates DCs and enhances aPD‐1 therapy in an IL‐12‐dependent manner.

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Crossref · 10.1016/j.immuni.2018.09.024

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    B cell depletion did not affect anti-CD40 therapy in this experimental model.

    “We found that B cell depletion had no effect on aCD40 therapy , suggesting that B cells are not necessary for aCD40 treatment in this experimental model (data not shown).”
  • The paper relies on this without support.

    The MC38 tumor model responds to anti-PD-1 treatment.

    “Here, we initially used the MC38 mouse tumor model because it is sensitive to aPD-1 treatment and thus is relevant to define mechanisms dictating treatment success.”
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Metadata

Authors
Garris, C. S., Arlauckas, S. P., Kohler, R. H., Trefny, M. P., Garren, S., Piot, C., Engblom, C., Pfirschke, C., Siwicki, M., Gungabeesoon, J., Freeman, G. J., Warren, S. E., Ong, S., Browning, E., Twitty, C. G., Pierce, R. H., Le, M. H., Algazi, A. P., Daud, A. I., Pai, S. I., Zippelius, A., Weissleder, R., & Pittet, M. J.
Affiliations
  • Harvard University (US)
  • Massachusetts General Hospital (US)
  • University Hospital of Basel (CH)
  • Nanostring Technologies (United States) (US)
  • University of California, San Francisco (US)
Venue
Immunity
Publisher
Elsevier BV
Published
2018-12
Volume
49
Issue
6
Pages
1148-1161.e7
ISSN
1074-7613 (ISSN-L)
OpenAlex
W2904099327
Cited by
966
References
62
Citations by year
2026: 101 · 2025: 118 · 2024: 130 · 2023: 138 · 2022: 146 · 2021: 150 · 2020: 124 · 2019: 57 · 2018: 1
FWCI
30.99
Type
journal article
Language
en
Update notices
erratum (2022-09-13)
Open access
Locations
  • Immunity (publishedVersion)
  • PubMed (publishedVersion)
  • Archive ouverte UNIGE (University of Geneva) (acceptedVersion, other-oa)
  • Europe PMC (PubMed Central) (acceptedVersion)
  • PubMed Central (acceptedVersion)
  • eScholarship (California Digital Library) (submittedVersion)
  • Archive ouverte UNIGE (University of Geneva) (submittedVersion, cc-by)
Funders
  • Samana Cay MGH Research Scholar Fund
  • Robert Wenner Award from the Swiss Cancer League
  • NIH (R01-AI084880, R01-CA218579, R01-AI123349, R01-CA206890, R33-CA202064, U01CA206997, P01 AI056299, P50CA101942, F31-CA196035, T32-CA79443)
  • Swiss National Cancer Foundation (320030_162575)
  • MGH ECOR Tosteson Postdoctoral Fellowship
Topics
  • Health Sciences › Medicine › Oncology › Cancer Immunotherapy and Biomarkers
  • Life Sciences › Immunology and Microbiology › Immunology › Immunotherapy and Immune Responses
  • Life Sciences › Immunology and Microbiology › Immunology › T-cell and B-cell Immunology
Keywords
anti-PD-1 therapy, immune checkpoint blockade, tumor-infiltrating dendritic cells, IL-12, interferon-gamma, T cell-mediated antitumor immunity, NF-κB signaling, intravital imaging, single-cell RNA sequencing, pharmacodynamics, cancer immunotherapy
MeSH terms
Adult, Aged, Aged, 80 and over, Animals, Antibodies, Monoclonal, Dendritic Cells, Female, Humans, Immunotherapy, Interferon-gamma, Male, Mice, Inbred C57BL, Mice, Transgenic, Middle Aged, Neoplasms, T-Lymphocytes, Signal Transduction, NF-kappa B, Interleukin-12, Programmed Cell Death 1 Receptor

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