Cited by 1,677Cancer Immunotherapy and BiomarkersT-cell and B-cell ImmunologyImmunotherapy and Immune Responses

Up-Regulation of PD-L1, IDO, and T regs in the Melanoma Tumor Microenvironment Is Driven by CD8 + T Cells

Open access
Spranger, Stefani, Spaapen, Robbert M., Zha, Yuanyuan, Williams, Jason, Meng, Yuru, Ha, Thanh T., Gajewski, Thomas F.·2013·Science Translational Medicine

Abstract

Tumor escape from immune-mediated destruction has been associated with immunosuppressive mechanisms that inhibit T cell activation. Although evidence for an active immune response, including infiltration with CD8(+) T cells, can be found in a subset of patients, those tumors are nonetheless not immunologically rejected. In the current report, we show that it is the subset of T cell-inflamed tumors that showed high expression of three defined immunosuppressive mechanisms: indoleamine-2,3-dioxygenase (IDO), PD-L1/B7-H1, and FoxP3(+) regulatory T cells (T(regs)), suggesting that these inhibitory pathways might serve as negative feedback mechanisms that followed, rather than preceded, CD8(+) T cell infiltration. Mechanistic studies in mice revealed that up-regulated expression of IDO and PD-L1, as well as recruitment of T(regs), in the tumor microenvironment depended on the presence of CD8(+) T cells. The former was driven by interferon-γ and the latter by a production of CCR4-binding chemokines along with a component of induced proliferation. Our results argue that these major immunosuppressive pathways are intrinsically driven by the immune system rather than being orchestrated by cancer cells, and imply that cancer immunotherapy approaches targeting negative regulatory immune checkpoints might be preferentially beneficial for patients with a preexisting T cell-inflamed tumor microenvironment.

The claims and statistics of this paper haven’t been checked yet.

Run the check — free, no account needed. It reads the open-access text and checks the sources it cites.

A few free checks a day · papers already verified open instantly · results are public

Integrity signals

Registry

Crossref · 10.1126/scitranslmed.3006504

Cites

50 of 50 references verified0 citation errors · 0 not checkable

Statistics

Claims the paper makes

The claims and statistics of this paper haven’t been checked yet.

Run the check — free, no account needed. It reads the open-access text and checks the sources it cites.

A few free checks a day · papers already verified open instantly · results are public

Claims other papers make about this one

Each is checked against this paper’s own text: does it say what the citing paper says it does?

Self-check

Percentages, sums and reported differences re-computed from the paper’s own numbers.

The self-check needs the paper’s full text.

Cites

1 retracted

Flagged first, then by citations

Cited by

Sorted by citations

Authors
Spranger, S., Spaapen, R. M., Zha, Y., Williams, J., Meng, Y., Ha, T. T., & Gajewski, T. F.
Affiliations
University of Chicago (US)
Corresponding author
  • Spranger, Stefani
  • Spaapen, Robbert M.
  • Gajewski, Thomas F.
Venue
Science Translational Medicine
Published
2013-08-28
Volume
5
Issue
200
Pages
200ra116-200ra116
ISSN
  • 1946-6234 (ISSN-L)
  • 1946-6242
OpenAlex
W2136731993
Cited by
1,677
References
50
Citations by year
2026: 49 · 2025: 76 · 2024: 112 · 2023: 122 · 2022: 136 · 2021: 173 · 2020: 158 · 2019: 162 · 2018: 171 · 2017: 176 · 2016: 155 · 2015: 111 · 2014: 70 · 2013: 6
FWCI
61.01
Type
journal article
Language
en
Open access
Locations
  • Science Translational Medicine (publishedVersion)
  • PubMed (publishedVersion)
  • PubMed Central (acceptedVersion)
Funders
National Cancer Institute (R01CA127475, R01CA118153)
Topics
  • Health Sciences › Medicine › Oncology › Cancer Immunotherapy and Biomarkers
  • Life Sciences › Immunology and Microbiology › Immunology › T-cell and B-cell Immunology
  • Life Sciences › Immunology and Microbiology › Immunology › Immunotherapy and Immune Responses
Keywords
melanoma, tumor microenvironment, PD-L1, indoleamine 2,3-dioxygenase, regulatory T cells, CD8+ T cells, immunosuppression, immune checkpoint, interferon-gamma, cancer immunotherapy, tumor immune evasion
MeSH terms
Animals, Humans, Interferon-gamma, Lymphocyte Activation, Melanoma, Melanoma, Experimental, Neoplasm Metastasis, Up-Regulation, CD8-Positive T-Lymphocytes, Chemokines, Xenograft Model Antitumor Assays, Cell Proliferation, T-Lymphocytes, Regulatory, Mice, Forkhead Transcription Factors, Tumor Microenvironment, B7-H1 Antigen

About these checks

Registry, retraction, Cites and statistics results are computed, not judged, with one exception: a printed reference that no index lists is read once by a model before it counts as a citation error. Claims are extracted by a model and kept only when their quote appears verbatim in the text; each cited source is then checked, with a model’s help, for whether it says what the claim relies on. Those verdicts can be wrong — read the claim’s quote and the cited source before relying on one.

Statistics and arithmetic are recomputed, not judged.

Confidence bands are shown only for fields calibrated on our annotated test set. None is calibrated yet, so no band is shown.

What counts as a claim ›How we measure confidence ›How we check this ›

Are you an author, or do you see a problem with this page? Request a review