Cited by 328Cancer Immunotherapy and BiomarkersImmunotherapy and Immune ResponsesT-cell and B-cell Immunology

Inhibition of the B7-H3 immune checkpoint limits tumor growth by enhancing cytotoxic lymphocyte function

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Lee, Young-hee, Martin-Orozco, Natalia, Zheng, Peilin, Li, Jing, Zhang, Peng, Tan, Haidong, Park, Hyun Jung, Jeong, Mira +18 more·2017·Cell Research

Abstract

The interaction between tumor and the immune system is still poorly understood. Significant clinical responses have been achieved in cancer patients treated with antibodies against the CTLA4 and PD-1/PD-L1 checkpoints; however, only a small portion of patients responded to the therapies, indicating a need to explore additional co-inhibitory molecules for cancer treatment. B7-H3, a member of the B7 superfamily, was previously shown by us to inhibit T-cell activation and autoimmunity. In this study, we have analyzed the function of B7-H3 in tumor immunity. Expression of B7-H3 was found in multiple tumor lines, tumor-infiltrating dendritic cells, and macrophages. B7-H3-deficient mice or mice treated with an antagonistic antibody to B7-H3 showed reduced growth of multiple tumors, which depended on NK and CD8+ T cells. With a putative receptor expressed by cytotoxic lymphocytes, B7-H3 inhibited their activation, and its deficiency resulted in increased cytotoxic lymphocyte function in tumor-bearing mice. Combining blockades of B7-H3 and PD-1 resulted in further enhanced therapeutic control of late-stage tumors. Taken together, our results indicate that the B7-H3 checkpoint may serve as a novel target for immunotherapy against cancer.

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Crossref · 10.1038/cr.2017.90

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  • B7H3 promotes tumor metastasis and invasion via suppression of both CD8+ and CD4+ T cell proliferation and activity.

    “B7H3 has been shown to promote tumor metastasis and invasion via suppression of both CD8+ and CD4 + T cell proliferation and activity86,87.”

    From The evolving landscape of antibody-drug conjugates (ADCs) for treatment of prostate cancer (2025) · cites this paper as [86]

    The ‘B7-H3 regulates anti-tumor CD8+ T cells’ section reports increased CD8+ T-cell proliferation and activity when B7-H3 is absent, and the tumor experiments report fewer lung tumor foci after B7-H3 inhibition. The paper does not establish tumor invasion or suppression of CD4+ T-cell proliferation as part of that mechanism; its ‘NK and CD8+ T cells’ section says CD4+ T-cell depletion did not affect tumor growth in B7-H3-knockout mice. Page numbers were unavailable in our copy. (LLM, conf=0.88)

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Authors
Lee, Y.-H., Martin-Orozco, N., Zheng, P., Li, J., Zhang, P., Tan, H., Park, H. J., Jeong, M., Chang, S. H., Kim, B.-S., Xiong, W., Zang, W., Guo, L., Liu, Y., Dong, Z.-J., Overwijk, W. W., Hwu, P., Yi, Q., Kwak, L., Yang, Z., Mak, T. W., Li, W., Radvanyi, L. G., Ni, L., Liu, D., & Dong, C.
Affiliations
  • Houston Methodist (US)
  • Tsinghua University (CN)
  • Children's National (US)
  • China-Japan Friendship Hospital (CN)
  • Baylor College of Medicine (US)
  • Central South University (CN)
  • Cleveland Clinic (US)
  • City Of Hope National Medical Center (US)
  • University Health Network (CA)
  • EMD Serono, Inc. (United States) (US)
Corresponding author
Dong, Chen
Venue
Cell Research
Published
2017-07-07
Volume
27
Issue
8
Pages
1034-1045
ISSN
  • 1001-0602 (ISSN-L)
  • 1748-7838
OpenAlex
W2725962181
Cited by
328
References
32
Citations by year
2026: 20 · 2025: 36 · 2024: 33 · 2023: 44 · 2022: 60 · 2021: 49 · 2020: 43 · 2019: 24 · 2018: 14 · 2017: 5
FWCI
10.37
Type
journal article
Language
en
Open access
Locations
  • Cell Research (publishedVersion)
  • Europe PMC (PubMed Central) (publishedVersion)
  • PubMed Central (publishedVersion)
  • PubMed (publishedVersion)
Funders
  • National Science Foundation
  • National Natural Science Foundation of China (81502462)
  • Tsinghua University
  • EMD Serono
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
B7-H3, immune checkpoint, tumor immunology, cytotoxic lymphocytes, natural killer cells, CD8+ T cells, tumor-infiltrating dendritic cells, tumor-associated macrophages, anti-PD-1 therapy, cancer immunotherapy, tumor growth inhibition
MeSH terms
Animals, Female, Humans, Immunity, Cellular, Killer Cells, Natural, Male, Mice, Inbred BALB C, Neoplasm Proteins, Neoplasms, Mice, Knockout, CD8-Positive T-Lymphocytes, Cell Line, Tumor, Mice, B7 Antigens

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