Cited by 723Cancer Immunotherapy and BiomarkersChemokine receptors and signalingT-cell and B-cell Immunology

Intratumoral activity of the cxcr3 chemokine system is required for the efficacy of anti-PD-1 therapy

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Chow, Melvyn T., Ozga, Aleksandra J., Servis, Rachel L., Frederick, Dennie T., Lo, Jennifer A., Fisher, David E., Freeman, Gordon J., Boland, Genevieve M. +1 more·2019·Immunity

Abstract

Despite compelling rates of durable clinical responses to programmed cell death-1 (PD-1) blockade, advances are needed to extend these benefits to resistant tumors. We found that tumor-bearing mice deficient in the chemokine receptor CXCR3 responded poorly to anti-PD-1 treatment. CXCR3 and its ligand CXCL9 were critical for a productive CD8+ T cell response in tumor-bearing mice treated with anti-PD-1 but were not required for the infiltration of CD8+ T cells into tumors. The anti-PD-1-induced anti-tumor response was facilitated by CXCL9 production from intratumoral CD103+ dendritic cells, suggesting that CXCR3 facilitates dendritic cell-T cell interactions within the tumor microenvironment. CXCR3 ligands in murine tumors and in plasma of melanoma patients were an indicator of clinical response to anti-PD-1, and their induction in non-responsive murine tumors promoted responsiveness to anti-PD-1. Our data suggest that the CXCR3 chemokine system is a biomarker for sensitivity to PD-1 blockade and that augmenting the intratumoral function of this chemokine system could improve clinical outcomes.

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Authors
Chow, M. T., Ozga, A. J., Servis, R. L., Frederick, D. T., Lo, J. A., Fisher, D. E., Freeman, G. J., Boland, G. M., & Luster, A. D.
Affiliations
Harvard University (US)
Corresponding author
Luster, Andrew D.
Venue
Immunity
Publisher
Elsevier BV
Published
2019-06
Volume
50
Issue
6
Pages
1498-1512.e5
ISSN
1074-7613 (ISSN-L)
OpenAlex
W2945224722
Cited by
716
References
57
Citations by year
2026: 83 · 2025: 98 · 2024: 120 · 2023: 128 · 2022: 96 · 2021: 90 · 2020: 81 · 2019: 19
FWCI
30.30
Type
journal article
Language
en
Open access
Locations
  • Immunity (publishedVersion)
  • PubMed (publishedVersion)
  • PubMed Central (acceptedVersion)
Funders
  • Schweizerischer Nationalfonds zur Förderung der Wissenschaftlichen Forschung (AR043369)
  • Dr. Miriam and Sheldon G. Adelson Medical Research Foundation
  • National Institutes of Health (AR043369, CA204028, AI112521, CA222871, CA163222)
  • Melanoma Research Alliance
  • Cancer Research Institute
Topics
  • Health Sciences › Medicine › Oncology › Cancer Immunotherapy and Biomarkers
  • Health Sciences › Medicine › Oncology › Chemokine receptors and signaling
  • Life Sciences › Immunology and Microbiology › Immunology › T-cell and B-cell Immunology
Keywords
CXCR3, CXCL9, anti-PD-1 therapy, chemokine system, CD8+ T cells, CD103+ dendritic cells, dendritic cell-T cell interaction, tumor microenvironment, melanoma, predictive biomarkers, immunotherapy resistance
MeSH terms
Antineoplastic Agents, Immunological, Animals, Disease Models, Animal, Humans, Lymphocyte Activation, Neoplasms, Biomarkers, T-Lymphocyte Subsets, Mice, Knockout, CD8-Positive T-Lymphocytes, Xenograft Model Antitumor Assays, Epigenesis, Genetic, Mice, Receptors, CXCR3, Immunomodulation, Molecular Targeted Therapy, Tumor Microenvironment, Programmed Cell Death 1 Receptor

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