ArticleBritish journal of cancer2025
Claudin18.2-positive gastric cancer-specific changes in neoadjuvant chemotherapy-driven immunosuppressive tumor microenvironment.
Article in British journal of cancer, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 10 papers.
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Who cites it
10 citing papers in PubMed.
- Diagnostic discordance and treatment-associated change of PD-L1 and CLDN18.2 in gastric cancer: a real-world analysis of paired biopsy-resection samples.Gastric cancer : official journal of the International Gastric Cancer Association and the Japanese Gastric Cancer Association · 2026Article
- Claudin18.2 and the PD-1/PD-L1 axis in gastric cancer: mechanistic insights and implications for combination immunotherapy.Journal of translational medicine · 2026Review
- Claudin proteins as emerging therapeutic targets for solid tumours.Nature reviews. Cancer · 2026Review
- Claudin18.2 positive gastric cancer: biology, tumor microenvironment, and therapeutic strategies.Journal of hematology & oncology · 2026Review
- Tumor microenvironment in gastric cancer immune tolerance and its therapeutic relevance in immunomodulation (Review).Oncology letters · 2026Review
- CLDN18.2-Directed Therapeutics in Gastric and Gastroesophageal Junction Adenocarcinoma: Biomarker Assessment, Expression Dynamics, and Treatment Sequencing.Cancer management and research · 2026Review
- Systematic optimization of PD-L1 and CLDN18.2 CAR-T designs identifies a bicistronic dual-target, double-CD3ζ architecture with enhanced antitumor activity in gastric cancer.Frontiers in immunology · 2026Article
- Exosome-Mediated Macrophage Polarization in Gastric Cancer: Inflammatory and Neuroinflammatory Mechanisms and Therapeutic Potential.International journal of general medicine · 2026Review
- uPAR expression in M-MDSCs under high LDHA activity in pancreatic ductal adenocarcinoma.Scientific reports · 2025Article
- CLDN18.2-Targeted Therapy in Gastrointestinal Cancers.Cancers · 2025Review
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Authors and funding
18 authors.
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Abstract
backgroundClaudin 18 isoform 2 (CLDN18.2) is a potential therapeutic target in gastric cancer (GC). However, combining chemotherapy with anti-CLDN18.2 antibodies has shown limited efficacy in CLDN18.2-positive GC, and chemotherapy-induced changes in the tumor microenvironment (TME) remain unclear.
methodsThis study analyzed 37 GC samples, including 11 CLDN18.2-positive cases, using single-cell RNA sequencing and multiplex immunofluorescence to assess chemotherapy-driven TME changes in CLDN18.2-positive GC.
resultsIn chemotherapy-treated CLDN18.2-positive GC, cytotoxic natural killer (NK) cells displayed antibody-dependent cytotoxicity (ADCC)-related genes at lower levels than in untreated CLDN18.2-positive GC, while regulatory T cells (Tregs) and tumor-associated macrophages (TAMs) showed TGFB1 expression at higher levels. Additionally, NK cells, Tregs, and TAMs were more abundant in chemotherapy-treated than untreated CLDN18.2-positive GC. These chemotherapy-induced changes were absent in CLDN18.2-negative GC. Cell-cell interaction analysis identified unique interactions in chemotherapy-treated CLDN18.2-positive GC, including CCL5-CCR5 signaling between cytotoxic NK cells (Sender) and effector Tregs (Receptor) and TGFB1-TGFBR signaling between effector Tregs (Sender) and TAMs (Receptor). Cytotoxic NK cells expressed CCL5 at higher levels, CCR5-positive Tregs were more prevalent, and TAMs exhibited higher TGF-β receptor signature scores in chemotherapy-treated than untreated CLDN18.2-positive GC.
conclusionsOur findings indicate that chemotherapy can drive immunosuppressive TME modifications specific to CLDN18.2-positive GC.
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