ArticleScientific reports2020
Increased expression of PD-1 and PD-L1 in oral lesions progressing to oral squamous cell carcinoma: a pilot study.
Article in Scientific reports, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 53 papers, 2 of them syntheses that pooled it.
What it found
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The trial behind it
Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.
Who cites it
53 citing papers in PubMed, 2 syntheses or guidelines pooled it, 94 citations in OpenAlex.
- PD-L1 in oral squamous cell carcinoma: A key biomarker from the laboratory to the bedside.Clinical and experimental dental research · 2022Pooled it
- Prognostic value of PD-1, PD-L1 and PD-L2 deserves attention in head and neck cancer.Frontiers in immunology · 2022Pooled it
- Immunotherapy for oral cavity tumors: recent advances, key challenges, and future perspectives.Molecular biology reports · 2026Review
- PD-L1 Expression and Immune Microenvironment Remodeling During Laryngeal Carcinogenesis: Implications for Malignant Progression of Laryngeal Dysplasia.International journal of molecular sciences · 2026Article
- Programmed cell death ligand 1(PD-L1) association in metastatic and non-metastatic oral squamous cell carcinoma: clinicopathologic and immunohistochemical study.Scientific reports · 2026Article
- Assessment of Programmed Cell Death Ligand-1 Expression in Oral Potentially Malignant Disorders and Tumor-Free Surgical Margins of Oral Squamous Cell Carcinoma: Protocol for a Retrospective Cross-Sectional Study.JMIR research protocols · 2026Article
- Molecular Mechanisms in Oral Squamous Cell Carcinoma: Integrative Roles of Cancer-Associated Fibroblasts, Immune Microenvironment, and Precision Therapeutic Opportunities.International journal of molecular sciences · 2026Review
- Review
- Molecular and microenvironmental drivers of malignant transformation from oral potentially malignant disorders to oral squamous cell carcinoma.Frontiers in oncology · 2026Review
- A spatial-microbial-metabolic-immune framework for high-risk oral potentially malignant disorders: an evidence-ranked review for malignant transformation risk stratification.Frontiers in cellular and infection microbiology · 2026Review
- Current and Emerging Protein Biomarkers for the Diagnosis and Prognosis of Head and Neck Cancer.Genes · 2025Review
- Immune Microenvironment in Oral Potentially Malignant Disorders and Oral Cancer: A Narrative Review.International journal of molecular sciences · 2025Review
- Influence of Different Nicotine Sources on Exercise-Driven Immune Responses of Peripheral Blood Monocytes.Toxics · 2025Article
- High-Sensitivity PD-L1 Staining Using Clone 73-10 Antibody and Spatial Transcriptomics for Precise Expression Analysis in Non-Tumorous, Intraepithelial Neoplasia, and Squamous Cell Carcinoma of Head and Neck.Head and neck pathology · 2025Article
- Salivary biomarkers: a promising approach for predicting immunotherapy response in head and neck cancers.Clinical & translational oncology : official publication of the Federation of Spanish Oncology Societies and of the National Cancer Institute of Mexico · 2025Review
- Neutrophil proteins as potential biomarkers for a sputum-based tuberculosis screening test.Frontiers in immunology · 2025Article
- Research progress on the role of decorin in the development of oral mucosal carcinogenesis.Oncology research · 2025Review
- Unravelling molecular mechanism of oral squamous cell carcinoma and genetic landscape: an insight into disease complexity, available therapies, and future considerations.Frontiers in immunology · 2025Review
- The expression of immune checkpoint proteins PD-L1 and TIM3 in mouse and human head and neck squamous cell carcinoma.European journal of oral sciences · 2024Article
- Article
Corrections and comments
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Authors and funding
3 authors at 1 institution in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Oral cancer is a devastating disease and is commonly preceded by a range of oral premalignant disorders. We investigated the expression of PD-1 and PD-L1 in oral epithelial dysplasia (OED) that progressed to oral squamous cell carcinoma (OSCC) compared to non-progressing dysplasia. 49 oral biopsies were analyzed, including 19 progressing cases, 20 cases did not progress, and 10 OSCC. Samples were stained with monoclonal antibodies for PD-1 and PD-L1, followed by conventional peroxidase reaction immunohistochemistry (IHC) imaged under light microscopy or fluorescent immunohistochemistry (FIHC) imaged using a confocal microscope. Images were analyzed using a novel semi-automated analysis protocol. PD-1/PD-L1 expression was assessed at the epithelium/tumor cells (TC) and at inflammatory cells in lamina propria. Our results show a significant increase in PD-L1 expression in progressing compared to non-progressing dysplasia. Using FIHC, we showed increased PD-L1 expression, increased nuclear density in progressing dysplasia and a better interobserver agreement compared with IHC. We developed a new FIHC-based quantitative method to study PD-1/PD-L1 expression in FFPE samples and showed that PD-L1 is highly expressed in premalignant lesions progressing to cancer. Our results suggest that immunomodulation via PD-L1/PD-1 pathway occurs prior to malignant transformation.
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Registered trials
Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.