ReviewCancers2021
Soluble Programmed Death Ligand-1 (sPD-L1): A Pool of Circulating Proteins Implicated in Health and Diseases.
Review in Cancers, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 77 papers, 2 of them syntheses that pooled it.
What it found
Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.
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.
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
77 citing papers in PubMed, 2 syntheses or guidelines pooled it, 116 citations in OpenAlex.
- Prognostic and clinicopathological value of soluble programmed cell death ligand-1 (sPD-L1) in patients with peripheral T-cell lymphoma: a meta-analysis.Annals of medicine · 2025Pooled it
- Prognostic value of soluble programmed cell death-1 (sPD-1) and soluble programmed cell death ligand-1 (sPD-L1) for hepatocellular carcinoma: a systematic review and meta-analysis.Cancer immunology, immunotherapy : CII · 2022Pooled it
- Paracetamol and Metformin Reduce NK-Cell Susceptibility in MCF-7 Breast Cancer Cells in Association with Enrichment of Immune-Evasive CD44International journal of molecular sciences · 2026Article
- A novel strategy to prolong heart allograft survival in a mouse model using soluble programmed death ligand-1 combined with tacrolimus.Scientific reports · 2026Article
- Engineering strategies and binding mechanisms of therapeutic anti-PD-1 antibodies approved by regulatory agencies globally.Frontiers in immunology · 2026Review
- Huaier Polysaccharides Sensitize Anti-PD-L1 Therapy via Promoting Antitumor Immune Response in Triple-Negative Breast Cancer.International journal of biological sciences · 2026Article
- PD-L1 and the risk of bacterial infection in patients with chronic liver diseases: An international multicohort study.JHEP reports : innovation in hepatology · 2025Article
- Soluble programmed cell death ligand-1 as a predictive biomarker for severity and poor prognosis in pulmonary tuberculosis.Annals of medicine · 2025Article
- ADAM9 drives PD-L1 shedding via IL-6 suppression and exploring therapeutic role of Bufalin treatment in hepatocellular carcinoma.Discover oncology · 2025Article
- Immune Checkpoint Dysregulation in Aneurysmal Subarachnoid Hemorrhage: A Prospective Study of sCTLA-4 and sPD-L1 as Biomarkers of Symptomatic Vasospasm.International journal of molecular sciences · 2025Article
- Mesenchymal stromal cells conditioned by peripheral blood mononuclear cells exert enhanced immunomodulation capacities and alleviate a model of Myasthenia Gravis.Stem cell research & therapy · 2025Article
- Article
- Immunoinformatics based designing of a multi-epitope cancer vaccine targeting programmed cell death ligand 1.Scientific reports · 2025Article
- Soluble PD-L1: From Immune Evasion to Cancer Therapy.Life (Basel, Switzerland) · 2025Review
- Unravelling Plasma Extracellular Vesicle Diversity With Optimised Spectral Flow Cytometry.Journal of extracellular biology · 2025Article
- High serum levels of soluble PD‑1 and PD‑L1 are associated with advanced clinical stages in patients with cervical cancer.Biomedical reports · 2025Article
- The intersection of epigenetics and immune thrombocytopenia: new insights into disease mechanisms and treatments.Molecular biology reports · 2025Review
- Assessing the Clinical Relevance of Soluble PD-1 and PD-L1: A Multi-Cohort Study Across Diverse Tumor Types and Prognostic Implications.Biomedicines · 2025Article
- Article
- Lymphocyte Inhibition Mechanisms and Immune Checkpoints in COVID-19: Insights into Prognostic Markers and Disease Severity.Medicina (Kaunas, Lithuania) · 2025Observational
17 more citing papers are in PubMed but not listed here.
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
3 authors at 2 institutions in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Upon T-cell receptor stimulation, the Programmed cell Death-1 receptor (PD-1) expressed on T-cells can interact with its ligand PD-L1 expressed at the surface of cancer cells or antigen-presenting cells. Monoclonal antibodies targeting PD-1 or PD-L1 are routinely used for the treatment of cancers, but their clinical efficacy varies largely across the variety of tumor types. A part of the variability is linked to the existence of several forms of PD-L1, either expressed on the plasma membrane (mPD-L1), at the surface of secreted cellular exosomes (exoPD-L1), in cell nuclei (nPD-L1), or as a circulating, soluble protein (sPD-L1). Here, we have reviewed the different origins and roles of sPD-L1 in humans to highlight the biochemical and functional heterogeneity of the soluble protein. sPD-L1 isoforms can be generated essentially by two non-exclusive processes: (i) proteolysis of m/exoPD-L1 by metalloproteases, such as metalloproteinases (MMP) and A disintegrin and metalloproteases (ADAM), which are capable of shedding membrane PD-L1 to release an active soluble form, and (ii) the alternative splicing of PD-L1 pre-mRNA, leading in some cases to the release of sPD-L1 protein isoforms lacking the transmembrane domain. The expression and secretion of sPD-L1 have been observed in a large variety of pathologies, well beyond cancer, notably in different pulmonary diseases, chronic inflammatory and autoimmune disorders, and viral diseases. The expression and role of sPD-L1 during pregnancy are also evoked. The structural heterogeneity of sPD-L1 proteins, and associated functional/cellular plurality, should be kept in mind when considering sPD-L1 as a biomarker or as a drug target. The membrane, exosomal and soluble forms of PD-L1 are all integral parts of the highly dynamic PD-1/PD-L1 signaling pathway, essential for immune-tolerance or immune-escape.
Indexed as
Identifiers
What OpenQuestion holds
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.