ArticleBalkan medical journal2025
Potential Roles of Serum Exosomal CD155 and its Impact on NK Cell Immunosuppression in Hepatocellular Carcinoma.
Article in Balkan medical journal, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.
What it found
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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.
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.
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Who cites it
1 citing paper in PubMed.
- Immunotherapeutic strategies targeting the PVR-TIGIT/CD96/CD226 signaling pathway in glioma treatment.Annals of medicine · 2025Review
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Authors and funding
16 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Background: Targeted therapies directed at tumor immune checkpoint, like programmed death-ligand (PD-L)1/programmed death (PD)-1, have shown remarkable progress. Nevertheless, treatment efficacy in hepatocellular carcinoma (HCC) is notably compromised due to the intricate immune microenvironment. Exploring alternative checkpoints beyond PD-L1/PD-1, including those not located on the cell surface, may improve our understanding of their roles in areas like diagnostic potential and immune tolerance in HCC. Aims: To explore the roles of serum exosomal CD155 (exo-CD155) in HCC. Study Design: Experimental study. Methods: We separated and analyzed serum exosomes from HCC patients. We quantified the concentrations of serum soluble CD155 (sCD155) and serum exo-CD155, and examined their association with disease progression, hepatitis B surface antigen (HBsAg) presence, and the concentrations of α-fetoprotein fraction L3 (AFP-L3) or alpha-fetoprotein (AFP). Additionally, we assessed the diagnostic effect through the receiver operating characteristic (ROC) curve, and the immune suppressive effect on natural killer (NK) cells of exo-CD155. Results: This study reveal elevated exo-CD155 levels in all HCC patients, with a significant increase in early-stage patients, exhibiting normal AFP/AFP-L3 or HBsAg-positive status. Exo-CD155 is linked to the progression of HCC and shows significant diagnostic effectiveness for the disease. Furthermore, the incubation of NK-92MI with exosomes derived from HCC patients leads to a substantial reduction in immune function, which can be partially counteracted with an antibody that blocks T cell immune receptor immunoglobulin and ITIM domains, (TIGIT)-blocking antibody. Conclusion: These results disclose exo-CD155 shows promise for serving as a biomarker for HCC, especially in early-stage patients or those with normal AFP/AFP-L3 levels. Moreover, serum exosomes from HCC patients suppress NK cell immune functions through the TIGIT/CD155 pathway, contributing to immune tolerance in HCC.
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