Cited by 3,955Cancer Immunotherapy and BiomarkersImmunotherapy and Immune ResponsesT-cell and B-cell Immunology

Enhancement of Antitumor Immunity by CTLA-4 Blockade

Leach, Dana R., Krummel, Matthew F., Allison, James P.·1996·Science

Abstract

One reason for the poor immunogenicity of many tumors may be that they cannot provide signals for CD28-mediated costimulation necessary to fully activate T cells. It has recently become apparent that CTLA-4, a second counterreceptor for the B7 family of costimulatory molecules, is a negative regulator of T cell activation. Here, in vivo administration of antibodies to CTLA-4 resulted in the rejection of tumors, including preestablished tumors. Furthermore, this rejection resulted in immunity to a secondary exposure to tumor cells. These results suggest that blockade of the inhibitory effects of CTLA-4 can allow for, and potentiate, effective immune responses against tumor cells.

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Crossref · 10.1126/science.271.5256.1734

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3 of 3 references verified0 citation errors · 0 not checkable

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  • Overcoming checkpoints through therapeutic antibodies targeting CTLA-4, PD-1, or PD-L1 promotes anti-tumor T cell responses in mice and cancer patients.

    “Overcoming such checkpoints through the use of therapeutic antibodies targeting the CTLA-4, PD-1, or PD-L1 cell-surface receptors was shown to be instrumental in promoting anti-tumor T cell responses in mice and in cancer patients”

    From LXR/ApoE Activation Restricts Innate Immune Suppression in Cancer (2018) · cites this paper as Leach et al., 1996

  • In murine colon carcinoma and fibrosarcoma models, co-administration of anti-CTLA-4 antibodies with tumor lysate-loaded dendritic cells can reduce Tregs, increase CD8+ lymphocytes, inhibit metastatic growth, and prolong survival.

    “Additionally, studies by Allison et al. using murine colon carcinoma and fibrosarcoma models demonstrated that co-administration of anti-CTLA-4 antibodies with tumor lysate-loaded dendritic cells can reduce Tregs, increase CD8+ lymphocytes, inhibit metastatic growth, and prolong survival [121].”
  • CTLA-4 is expressed on CD4+ Treg and activated CD8+ T cells, restrains T cell costimulation, and serves as an immune checkpoint.

    “CTLA-4, another inhibitory receptor that is expressed on CD4+ Treg and activated CD8+ T cells, restrains costimulation of T cells and thus also serves as immune checkpoint357,358.”

    From TGFβ biology in cancer progression and immunotherapy (2021) · cites this paper as [358]

  • Immune checkpoint therapy can produce durable clinical responses and improve overall survival in some patients with cancer.

    “Immune checkpoint therapy (ICT) can provide durable clinical responses and improve overall survival.”

    From The Next Decade of Immune Checkpoint Therapy (2021) · cites this paper as [1]

  • In early studies, anti-CTLA4 antibody prevented CTLA4 from engaging B7, prolonging T-cell responses and eradicating cancer cells.

    “In early studies, an anti-CTLA4 antibody prevented CTLA4 from engaging B7, leading to prolonged T-cell responses and eradication of cancer cells (1).”

    From The Next Decade of Immune Checkpoint Therapy (2021) · cites this paper as [1]

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Authors
Leach, D. R., Krummel, M. F., & Allison, J. P.
Affiliations
University of California, Berkeley (US)
Corresponding author
Allison, James P.
Venue
Science
Published
1996-03-22
Volume
271
Issue
5256
Pages
1734-1736
ISSN
  • 0036-8075 (ISSN-L)
  • 1095-9203
OpenAlex
W2094366129
Cited by
3,955
References
3
Citations by year
2026: 114 · 2025: 210 · 2024: 248 · 2023: 271 · 2022: 254 · 2021: 327 · 2020: 331 · 2019: 317 · 2018: 243 · 2017: 216 · 2016: 204 · 2015: 188 · 2014: 88 · 2013: 113 · 2012: 87
FWCI
20.64
Type
journal article
Language
en
Open access
closed
Locations
  • Science (publishedVersion)
  • PubMed (publishedVersion)
Funders
National Cancer Institute (CA40041, CA 09179, R01CA057986, T32CA009179, CA57986)
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
CTLA-4, CTLA-4 blockade, antitumor immunity, tumor immunogenicity, CD28 costimulation, B7 costimulatory molecules, T cell activation, tumor rejection, anti-CTLA-4 antibody
MeSH terms
Abatacept, Animals, Antibodies, Antigens, Differentiation, Female, Graft Rejection, Immunologic Memory, Lymphocyte Activation, Mice, Inbred A, Mice, Inbred BALB C, Neoplasm Transplantation, Neoplasms, Experimental, T-Lymphocytes, Transfection, Tumor Cells, Cultured, Antigens, CD, CD28 Antigens, B7-1 Antigen, Immunoconjugates, Mice, CTLA-4 Antigen

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