Cited by 1,300Cancer Immunotherapy and BiomarkersImmunotherapy and Immune ResponsesT-cell and B-cell Immunology

Loss of IFN-γ pathway genes in tumor cells as a mechanism of resistance to anti-CTLA-4 therapy

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Gao, Jianjun, Shi, Lewis Zhichang, Zhao, Hao, Chen, Jianfeng, Xiong, Liangwen, He, Qiuming, Chen, Tenghui, Roszik, Jason +8 more·2016·Cell

Abstract

Antibody blockade of the inhibitory CTLA-4 pathway has led to clinical benefit in a subset of patients with metastatic melanoma. Anti-CTLA-4 enhances T cell responses, including production of IFN-γ, which is a critical cytokine for host immune responses. However, the role of IFN-γ signaling in tumor cells in the setting of anti-CTLA-4 therapy remains unknown. Here, we demonstrate that patients identified as non-responders to anti-CTLA-4 (ipilimumab) have tumors with genomic defects in IFN-γ pathway genes. Furthermore, mice bearing melanoma tumors with knockdown of IFN-γ receptor 1 (IFNGR1) have impaired tumor rejection upon anti-CTLA-4 therapy. These data highlight that loss of the IFN-γ signaling pathway is associated with primary resistance to anti-CTLA-4 therapy. Our findings demonstrate the importance of tumor genomic data, especially IFN-γ related genes, as prognostic information for patients selected to receive treatment with immune checkpoint therapy.

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Crossref · 10.1016/j.cell.2016.08.069

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Authors
Gao, J., Shi, L. Z., Zhao, H., Chen, J., Xiong, L., He, Q., Chen, T., Roszik, J., Bernatchez, C., Woodman, S. E., Chen, P.-L., Hwu, P., Allison, J. P., Futreal, A., Wargo, J. A., & Sharma, P.
Affiliations
The University of Texas MD Anderson Cancer Center (US)
Corresponding author
Sharma, Padmanee
Venue
Cell
Publisher
Elsevier BV
Published
2016-10
Volume
167
Issue
2
Pages
397-404.e9
ISSN
0092-8674 (ISSN-L)
OpenAlex
W2522313999
Cited by
1,300
References
41
Citations by year
2026: 83 · 2025: 107 · 2024: 128 · 2023: 158 · 2022: 137 · 2021: 174 · 2020: 162 · 2019: 128 · 2018: 121 · 2017: 89 · 2016: 8 · 2015: 2
FWCI
62.21
Type
journal article
Language
en
Open access
Locations
  • Cell (publishedVersion)
  • PubMed (publishedVersion)
  • Europe PMC (PubMed Central) (acceptedVersion)
  • PubMed Central (acceptedVersion)
Funders
National Cancer Institute (L30 CA117817, R01CA163793, K08CA160692, P30CA016672, K12CA088084)
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
interferon-gamma signaling, IFNGR1, CTLA-4 blockade, ipilimumab, metastatic melanoma, immune checkpoint therapy, tumor rejection, prognostic factors, T cell response
MeSH terms
Ipilimumab, Interferon gamma Receptor, Animals, Antibodies, Monoclonal, Humans, Interferon-gamma, Melanoma, Melanoma, Experimental, Mice, Inbred C57BL, Skin Neoplasms, T-Lymphocytes, Cytokines, Receptors, Interferon, Drug Resistance, Neoplasm, Cell Line, Tumor, Mice, Gene Knockdown Techniques, CTLA-4 Antigen

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