Cited by 52CAR-T cell therapy researchCancer Immunotherapy and BiomarkersGlioma Diagnosis and Treatment

Combined antitumor effects of anti-EGFR variant III CAR-T cell therapy and PD-1 checkpoint blockade on glioblastoma in mouse model

Song, Yujie, Liu, Qingtian, Zuo, Tong, Wei, Guoyan, Jiao, Shunchang·2020·Cellular Immunology

Abstract

Glioblastoma is one of the deadliest cancers. Chimeric antigen receptor (CAR)-T cell therapy against solid tumors has been far from satisfactory largely due to the immunosuppressive tumor microenvironment, such as PD-1 mediated T cell exhaustion. In the present study, we investigated the combined antitumor effects of anti-EGFR variant III CAR-T cell therapy and PD-1 checkpoint blockade on glioblastoma in mouse model. The results demonstrated that CAR-T cells with PD-1 blockade exhibit higher killing efficiency in vitro. Additionally, CAR-T cells with PD-1 blockade showed more effective and persistent therapeutic effects on glioblastoma and led to significantly increased number of tumor infiltrating lymphocytes (TILs) in the mouse model. In conclusion, PD-1 checkpoint blockade significantly enhanced the antitumor activity of anti-human EGFRvIII CAR-T cells by overcoming TILs exhaustion. The outcomes of the present study provide a novel strategy for improving the potency of CAR-T cell therapies in solid tumors.

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Crossref · 10.1016/j.cellimm.2020.104112

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Authors
Song, Y., Liu, Q., Zuo, T., Wei, G., & Jiao, S.
Affiliations
Chinese PLA General Hospital (CN)
Corresponding author
Jiao, Shunchang
Venue
Cellular Immunology
Publisher
Elsevier BV
Published
2020-06
Volume
352
Pages
104112
ISSN
0008-8749 (ISSN-L)
OpenAlex
W3015923357
Cited by
52
References
26
Citations by year
2026: 5 · 2025: 7 · 2024: 13 · 2023: 6 · 2022: 12 · 2021: 6 · 2020: 3
FWCI
2.45
Type
journal article
Language
en
Open access
closed
Locations
  • Cellular Immunology (publishedVersion)
  • PubMed (publishedVersion)
Topics
  • Health Sciences › Medicine › Oncology › CAR-T cell therapy research
  • Health Sciences › Medicine › Oncology › Cancer Immunotherapy and Biomarkers
  • Health Sciences › Medicine › Genetics › Glioma Diagnosis and Treatment
Keywords
glioblastoma, CAR T-cell therapy, anti-PD-1 therapy, T cell exhaustion, tumor microenvironment, tumor-infiltrating lymphocytes, combination immunotherapy, solid tumor immunotherapy
MeSH terms
Receptors, Chimeric Antigen, Animals, Disease Models, Animal, Female, Glioblastoma, Humans, Mice, Nude, T-Lymphocytes, Immunotherapy, Adoptive, Lymphocytes, Tumor-Infiltrating, Xenograft Model Antitumor Assays, Cell Line, Tumor, Mice, Tumor Microenvironment, Programmed Cell Death 1 Receptor, ErbB Receptors

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