SynthesisCells2021
What Do We Have to Know about PD-L1 Expression in Prostate Cancer? A Systematic Literature Review. Part 1: Focus on Immunohistochemical Results with Discussion of Pre-Analytical and Interpretation Variables.
Synthesis in Cells, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 31 papers, 5 of them syntheses that pooled it.
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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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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.
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Who cites it
31 citing papers in PubMed, 5 syntheses or guidelines pooled it, 39 citations in OpenAlex.
- Correlation between PD-L1 expression and clinical pathology, immunobiological markers, and prognosis in gastroenteropancreatic neuroendocrine neoplasms: a systematic review and meta-analysis.Frontiers in immunology · 2026Pooled it
- What Do We Have to Know about PD-L1 Expression in Prostate Cancer? A Systematic Literature Review. Part 3: PD-L1, Intracellular Signaling Pathways and Tumor Microenvironment.International journal of molecular sciences · 2021Pooled it
- What Do We Have to Know about PD-L1 Expression in Prostate Cancer? A Systematic Literature Review. Part 5: Epigenetic Regulation of PD-L1.International journal of molecular sciences · 2021Pooled it
- Pooled it
- What Do We Have to Know about PD-L1 Expression in Prostate Cancer? A Systematic Literature Review. Part 4: Experimental Treatments in Pre-Clinical Studies (Cell Lines and Mouse Models).International journal of molecular sciences · 2021Pooled it
- Association Between Biopsy PD-L1 Combined Positive Score and Pathological Upgrading at Radical Prostatectomy in Grade Group 1 Prostate Cancer: A Retrospective Study.International journal of molecular sciences · 2026Article
- The landscape of genitourinary cancer vaccines: clinical advances and future opportunities.Journal of advanced research · 2026Review
- Multidimensional explanations and future perspectives on the limited efficacy of immunotherapy in prostate cancer.Asian journal of andrology · 2026Review
- Prognostic significance of neuroendocrine differentiation and PD-L1 expression in treatment-naïve prostate cancer.BMC urology · 2026Article
- Topographical and stage-related expression of nectin-4 in prostate cancer.Central European journal of urology · 2026Article
- Review
- Review
- Prostate cancer immunotherapy-based strategies: an updated review emphasizing immune checkpoint inhibitors.Frontiers in immunology · 2025Review
- Senescence-associated secretory phenotype in lung cancer: remodeling the tumor microenvironment for metastasis and immune suppression.Frontiers in oncology · 2025Review
- Article
- Digital analysis of the prostate tumor microenvironment with high-order chromogenic multiplexing.Journal of pathology informatics · 2024Article
- The multifaceted role of the stroma in the healthy prostate and prostate cancer.Journal of translational medicine · 2024Review
- Programmed Death Ligand 1 (PD-L1) Expression in Lymphomas: State of the Art.International journal of molecular sciences · 2024Review
- Immunosuppressive role of BDNF in therapy-induced neuroendocrine prostate cancer.Molecular oncology · 2024Article
- Androgen Insensitivity Syndrome with Bilateral Gonadal Sertoli Cell Lesions, Sertoli-Leydig Cell Tumor, and Paratesticular Leiomyoma: A Case Report and First Systematic Literature Review.Journal of clinical medicine · 2024Article
Corrections and comments
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Authors and funding
29 authors at 11 institutions in 5 countries.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Immunotherapy targeting the PD-1-PD-L1 axis yielded good results in treating different immunologically ''hot'' tumors. A phase II study revealed good therapeutic activity of pembrolizumab in selected prostatic carcinoma (PC)-patients. We performed a systematic literature review (PRISMA guidelines), which analyzes the immunohistochemical expression of PD-L1 in human PC samples and highlights the pre-analytical and interpretation variables. Interestingly, 29% acinar PCs, 7% ductal PCs, and 46% neuroendocrine carcinomas/tumors were PD-L1+ on immunohistochemistry. Different scoring methods or cut-off criteria were applied on variable specimen-types, evaluating tumors showing different clinic-pathologic features. The positivity rate of different PD-L1 antibody clones in tumor cells ranged from 3% (SP142) to 50% (ABM4E54), excluding the single case tested for RM-320. The most tested clone was E1L3N, followed by 22C3 (most used for pembrolizumab eligibility), SP263, SP142, and 28-8, which gave the positivity rates of 35%, 11-41% (depending on different scoring systems), 6%, 3%, and 15%, respectively. Other clones were tested in <200 cases. The PD-L1 positivity rate was usually higher in tumors than benign tissues. It was higher in non-tissue microarray specimens (41-50% vs. 15%), as PC cells frequently showed heterogenous or focal PD-L1-staining. PD-L1 was expressed by immune or stromal cells in 12% and 69% cases, respectively. Tumor heterogeneity, inter-institutional preanalytics, and inter-observer interpretation variability may account for result biases.
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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.