ArticleScientific reports2024
Association of PD-L1 positivity with Epstein Barr virus infection and microsatellite instability in gastric carcinomas with lymphoid stroma.
Article in Scientific reports, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 5 papers, 1 of them a synthesis that pooled it.
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Who cites it
5 citing papers in PubMed, 1 synthesis or guideline pooled it.
- Prognostic implications of PD-L1 expression in gastric cancer: systematic review and meta-analysis of studies published between 2018 and 2025.BMC cancer · 2026Pooled it
- Meta-Merging the Transcriptomes of Gastric Tumors Redefines the Connections among Molecular and Clinical Subtypes.Asian Pacific journal of cancer prevention : APJCP · 2026Article
- Immunotherapy rechallenge in gastric cancer: resistance mechanisms, molecular stratification, and precision decision-making.Frontiers in immunology · 2026Review
- Gastrointestinal cancer: molecular pathogenesis and targeted therapy.Molecular biomedicine · 2025Review
- Mapping immune trajectories fromFrontiers in immunology · 2025Review
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Authors and funding
2 authors.
Funding
Abstract
Gastric carcinoma with lymphoid stroma (GCLS) is characterized by dense intra-and peritumoral lymphocytic infiltration and a high rate of Epstein Barr Virus (EBV) infection, suggesting being a promising candidate for immunotherapy. We investigated correlations between PD-L1 expression and clinicopathologic factors, including EBV positivity and microsatellite instability (MSI) status in GCLSs. The study included resected 214 GCLSs and 300 gastric adenocarcinomas (GACs) for control. Epstein Barr Virus encoding region in situ hybridization (EBER ISH), immunohistochemistry for PD-L1 and HER2, dual-colored in situ hybridization for HER2, and MSI analysis were performed. EBV positivity was found in 181 (85%) of 214 GCLSs. MSI analysis demonstrated that 0.6% of EBV + GCLSs and 54.5% of EBV-GCLSs were MSI-high compared to 7% of EBV-GACs. Approximately 3% and 3.9% of HER2 amplifications were found in EBV- and EBV + GCLSs compared to 13% of EBV-GACs. PD-L1 expression with ≥ 1, ≥ 5, and ≥ 10 combined positive scores (CPS) were observed in 81.8%, 70.2%, and 55.3% of EBV + GCLSs. PD-L1 expression with ≥ 10 CPS was observed in 21.2% of EBV-GCLSs, predominantly in MSI-H tumors (85.7%). EBV positivity and MSI are associated with PD-L1 positivity rates in patients with GCLS who may respond better to PD-1/PD-L1 inhibitors but not anti-HER2 inhibitors.
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