ArticleJournal for immunotherapy of cancer2020
Identification of PD1-mediated regulation of antitumor antigen response in patients with NSCLC using the trans vivo DTH assay.
Article in Journal for immunotherapy of cancer, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.
What it found
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
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Who cites it
1 citing paper in PubMed, 26 citations in OpenAlex.
- Co-stimulatory signal deficiency impairs cytotoxic T lymphocyte function in tumor immune evasion: molecular mechanisms and therapeutic implications.Journal of translational medicine · 2026Review
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Authors and funding
5 authors at 1 institution in 1 country.
Funding
Abstract
objectivesEmerging evidence has shown a role for tumor antigen-specific regulation in cancer. Identifying individuals with pre-existing regulatory responses may be key to understand those who are more likely to respond to Programmed Death-1 (PD-1) or PD-1 Ligand 1 (PD-L1) checkpoint blockade. We hypothesized that a functional assay could identify the role of PD-1/PD-L1 interactions on tumor-specific immune cells in the peripheral blood in patients with advanced non-small-cell lung cancer (NSCLC).
methodsWe performed the trans vivo delayed-type hypersensitivity assay to identify the role of PD-1/PD-L1-mediated tumor-specific immune regulation in ten patients with advanced NSCLC.
resultsThe majority of patients had PD-1-mediated anergic immune responses towards their tumor antigens. Eight out of nine of these patients did not respond to their own tumor antigens but responded in the presence of anti-PD-1 antibody ('PD-1 anergy' phenotype). A minority (3/9) also had 'active' PD-1-mediated immune suppressive regulatory responses. Our results suggest that PD-1-anergy is a common feature of NSCLC immune responses, whereas PD-1-mediated immune suppression is present only in a minority of patients. The latter was associated with poor clinical outcomes in our sample.
conclusionsOverall, our results indicate that bystander suppression or the 'anergy-only' phenomenon may be novel biomarkers in NSCLC and suggest prediction value based on these phenotypes.
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