Cited by 53Cancer Immunotherapy and BiomarkersT-cell and B-cell ImmunologyImmunotherapy and Immune Responses

Combinatorial blockade for cancer immunotherapy: targeting emerging immune checkpoint receptors

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Roy, Dia, Gilmour, Cassandra, Patnaik, Sachin, Wang, Li Lily·2023·Frontiers in Immunology

Abstract

The differentiation, survival, and effector function of tumor-specific CD8+ cytotoxic T cells lie at the center of antitumor immunity. Due to the lack of proper costimulation and the abundant immunosuppressive mechanisms, tumor-specific T cells show a lack of persistence and exhausted and dysfunctional phenotypes. Multiple coinhibitory receptors, such as PD-1, CTLA-4, VISTA, TIGIT, TIM-3, and LAG-3, contribute to dysfunctional CTLs and failed antitumor immunity. These coinhibitory receptors are collectively called immune checkpoint receptors (ICRs). Immune checkpoint inhibitors (ICIs) targeting these ICRs have become the cornerstone for cancer immunotherapy as they have established new clinical paradigms for an expanding range of previously untreatable cancers. Given the nonredundant yet convergent molecular pathways mediated by various ICRs, combinatorial immunotherapies are being tested to bring synergistic benefits to patients. In this review, we summarize the mechanisms of several emerging ICRs, including VISTA, TIGIT, TIM-3, and LAG-3, and the preclinical and clinical data supporting combinatorial strategies to improve existing ICI therapies.

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Crossref · 10.3389/fimmu.2023.1264327

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Authors
Roy, D., Gilmour, C., Patnaik, S., & Wang, L. L.
Affiliations
Cleveland Clinic (US)
Corresponding author
Wang, Li Lily
Venue
Frontiers in Immunology
Published
2023-10-19
Volume
14
Pages
1264327-1264327
ISSN
1664-3224 (ISSN-L)
OpenAlex
W4387777058
Cited by
53
References
226
Citations by year
2026: 15 · 2025: 24 · 2024: 13 · 2023: 1
FWCI
1.71
Type
journal article
Language
en
Open access
Locations
  • Frontiers in Immunology (publishedVersion, cc-by)
  • PubMed Central (publishedVersion, cc-by)
  • PubMed (publishedVersion)
  • DOAJ (DOAJ: Directory of Open Access Journals) (submittedVersion, cc-by-sa)
Funders
  • U.S. Department of Defense (W81XWH)
  • National Cancer Institute (R01CA223804, R21CA258618, R01CA164225, F31CA257276)
  • Congressionally Directed Medical Research Programs (W81XWH-21-MRP-MCAA ME210229, W81XWH-21-LCRP-IITRA LC210336)
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
immune checkpoint receptors, immune checkpoint inhibitors, combination immunotherapy, T cell exhaustion, PD-1, CTLA-4, VISTA, TIGIT, TIM-3, LAG-3, cytotoxic T lymphocytes, antitumor immunity, costimulation
MeSH terms
Hepatitis A Virus Cellular Receptor 2, Humans, Immunotherapy, Neoplasms, Receptors, Immunologic, T-Lymphocytes, Cytotoxic

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