ArticleOncology letters2024
Implication of PD‑L1 polymorphisms rs2297136 on clinical outcomes of patients with advanced NSCLC who received PD‑1 blockades: A retrospective exploratory study.
Article in Oncology letters, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 5 papers.
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Who cites it
5 citing papers in PubMed, 4 citations in OpenAlex.
- Do Asian patients with HCC derive greater benefit from anti-PD-L1 plus anti-CTLA-4 therapy?Hepatobiliary surgery and nutrition · 2025Article
- Genetic Variants and Soluble Isoforms of PD-1/PD-L1 as Novel Biomarkers for Pancreatic Ductal Adenocarcinoma (PDAC) Susceptibility and Prognosis.Biomedicines · 2025Article
- Unlocking the Potential of Immune Checkpoint Inhibitors in HR+/HER2- Breast Cancer: A Systematic Review.Cancers · 2025Review
- GermlineBiomolecules · 2025Article
- Relationship between single-nucleotide polymorphisms and cancer immunotherapy efficacy and toxicity: a systematic review.Frontiers in oncology · 2025Review
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Authors and funding
4 authors at 1 institution in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Clinically, programmed death-1 (PD-1) blockades have demonstrated promising therapeutic outcomes for patients with advanced non-small cell lung cancer (NSCLC). The present study aimed to examine the impact of programmed death-ligand 1 (PD-L1) polymorphism on clinical outcomes of patients with advanced NSCLC who were treated with PD-1 blockades therapy. The present study was designed as a retrospective analysis, where a consecutive screening of 89 patients with advanced NSCLC who received PD-1 blockades monotherapy were screened. Biological specimens were collected to determine the presence of polymorphism and PD-L1 mRNA expression through genotyping. The analysis focused on examining the relationship between the genotype status of PD-L1 polymorphism and clinical outcomes. Among the 89 patients with advanced NSCLC, the use of PD-1 blockades monotherapy resulted in objective response rate (ORR) of 22.5%, a median progression-free survival (PFS) of 3.4 months [95% Confidence Interval (CI): 1.80-5.00) and a median overall survival (OS) of 11.3 months (95% CI: 7.93-14.67). The analysis of polymorphism indicated that only rs2297136 had clinical significance. Among the 89 patients with NSCLC, the prevalence of rs2297136 was as follows: A total of 58 cases (65.2%) had the AA genotype, 28 cases (31.5%) had the AG genotype and 3 cases (3.4%) had the GG genotype. This resulted in a minor allele frequency of 0.19, which was in consistent with Hardy-Weinberg Equilibrium (P=0.865). The correlation analysis between genotype status of rs2297136 and clinical outcomes indicated that patients with the AA genotype had an ORR of 19.0%, while those with the AG/GG genotype had an ORR of 29.0% (P=0.278). Additionally, the median PFS for the AA genotype was 2.95 months, compared with 5.30 months for the AG/GG genotype (P=0.038). Accordingly, median OS of the AA and AG/GG genotypes was 8.8 and 18.4 months, respectively (P=0.011). The mRNA expression of PD-L1 was significantly higher in patients with AG/GG genotype compared with those with AA genotype (P<0.001). In clinical practice, PD-1 blockades demonstrated promising effectiveness in treating patients with advanced NSCLC. The presence of the rs2297136 variant in PD-L1 gene could potentially be used as a biomarker to predict the clinical outcomes of PD-1 blockades.
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