Cited by 1,040Cancer Immunotherapy and BiomarkersImmunotherapy and Immune Responsesinterferon and immune responses

Manganese is critical for antitumor immune responses via cGAS-STING and improves the efficacy of clinical immunotherapy

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Lv, Mengze, Chen, Meixia, Zhang, Rui, Zhang, Wen, Wang, Chenguang, Zhang, Yan, Wei, Xiaoming, Guan, Yukun, Liu, Jiejie, Feng, Kaichao, Jing, Miao, Wang, Xurui, Liu, Yun-Cai, Mei, Qian, Han, Weidong, Jiang, Zhengfan·2020·Cell Research

Abstract

CD8 + T cell-mediated cancer clearance is often suppressed by the interaction between inhibitory molecules like PD-1 and PD-L1, an interaction acts like brakes to prevent T cell overreaction under normal conditions but is exploited by tumor cells to escape the immune surveillance. Immune checkpoint inhibitors have revolutionized cancer therapeutics by removing such brakes. Unfortunately, only a minority of cancer patients respond to immunotherapies presumably due to inadequate immunity. Antitumor immunity depends on the activation of the cGAS-STING pathway, as STING-deficient mice fail to stimulate tumor-infiltrating dendritic cells (DCs) to activate CD8 + T cells. STING agonists also enhance natural killer (NK) cells to mediate the clearance of CD8 + T cell-resistant tumors. Therefore STING agonists have been intensively sought after. We previously discovered that manganese (Mn) is indispensable for the host defense against cytosolic dsDNA by activating cGAS-STING. Here we report that Mn is also essential in innate immune sensing of tumors and enhances adaptive immune responses against tumors. Mn-insufficient mice had significantly enhanced tumor growth and metastasis, with greatly reduced tumor-infiltrating CD8 + T cells. Mechanically, Mn 2+ promoted DC and macrophage maturation and tumor-specific antigen presentation, augmented CD8 + T cell differentiation, activation and NK cell activation, and increased memory CD8 + T cells. Combining Mn 2+ with immune checkpoint inhibition synergistically boosted antitumor efficacies and reduced the anti-PD-1 antibody dosage required in mice. Importantly, a completed phase 1 clinical trial with the combined regimen of Mn 2+ and anti-PD-1 antibody showed promising efficacy, exhibiting type I IFN induction, manageable safety and revived responses to immunotherapy in most patients with advanced metastatic solid tumors. We propose that this combination strategy warrants further clinical translation.

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  • Preliminary data showed that some combination therapies (ADU-S100 plus spartalizumab, MK-1454 plus pembrolizumab, manganese plus α-PD-1) had encouraging antitumor activity with a tolerable safety profile.

    “The preliminary data showed that some combination therapies (e.g. ADU-S100 plus spartalizumab, MK-1454 plus pembrolizumab, manganese plus α-PD-1) had encouraging antitumor activity with a tolerable safety profile [270, 275, 276].”

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Authors
Lv, M., Chen, M., Zhang, R., Zhang, W., Wang, C., Zhang, Y., Wei, X., Guan, Y., Liu, J., Feng, K., Jing, M., Wang, X., Liu, Y.-C., Mei, Q., Han, W., & Jiang, Z.
Affiliations
  • Peking University (CN)
  • Chinese PLA General Hospital (CN)
  • Cornell University (US)
  • National Institutes of Health (US)
  • Center for Life Sciences (CN)
Corresponding author
  • Mei, Qian
  • Han, Weidong
  • Jiang, Zhengfan
Venue
Cell Research
Published
2020-08-24
Volume
30
Issue
11
Pages
966-979
ISSN
  • 1001-0602 (ISSN-L)
  • 1748-7838
OpenAlex
W3080399909
Cited by
1,040
References
81
Citations by year
2026: 190 · 2025: 260 · 2024: 252 · 2023: 154 · 2022: 129 · 2021: 53 · 2020: 1
FWCI
30.88
Type
journal article
Language
en
Open access
Locations
  • Cell Research (publishedVersion, cc-by)
  • PubMed Central (publishedVersion, cc-by)
  • PubMed (publishedVersion)
  • Greater South Information System
Funders
  • National Natural Science Foundation of China (31830022, 81621001, 81830002, 81773248)
  • Ministry of Science and Technology of the People’s Republic of China (2019YFA0508500)
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 › interferon and immune responses
Keywords
manganese, cGAS-STING pathway, antitumor immunity, immune checkpoint inhibitors, anti-PD-1 therapy, CD8+ T cells, dendritic cell maturation, macrophage maturation, NK cell activation, tumor-infiltrating lymphocytes, type I interferon, cancer immunotherapy, manganese deficiency, metastatic solid tumors
MeSH terms
STING Protein, Cyclic Guanosine Monophosphate-Adenosine Monophosphate Synthase, Adjuvants, Pharmaceutic, Adult, Aged, Animals, Dendritic Cells, Female, Humans, Immunity, Immunotherapy, Interferon Type I, Killer Cells, Natural, Lung, Lymphocyte Activation, Male, Manganese, Melanoma, Experimental, Membrane Proteins, Mice, Inbred C57BL, Middle Aged, Neoplasms, Nucleotidyltransferases, Organ Size, Signal Transduction, Treatment Outcome, Antigen Presentation, CD8-Positive T-Lymphocytes, Drug Resistance, Multiple, Drug Resistance, Neoplasm, Tumor Burden, Carcinogenesis

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