ArticleFrontiers in immunology2023
Deficiency of N-linked glycosylation impairs immune function of B7-H6.
Article in Frontiers in immunology, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 6 papers.
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Who cites it
6 citing papers in PubMed.
- B7-H6/NKp30 Axis in Melanoma: Translational Rationale, Evidence Gaps, and Therapeutic Considerations.Biomolecules · 2026Review
- Comprehensive analysis and validation of the prognostic value of glycosylation- and mitophagy-related genes for head and neck squamous cell carcinoma.Translational cancer research · 2026Article
- Analysis of the Functional Impact of Glycosylation on Immune Checkpoint Proteins.Methods in molecular biology (Clifton, N.J.) · 2026Article
- Attenuation of natural killer cell cytotoxicity by interaction between NKp30 of NK cells and dipeptidase 1 of colon cancer cells.Scientific reports · 2025Article
- Post-translational modifications of cancer immune checkpoints: mechanisms and therapeutic strategies.Molecular cancer · 2025Review
- Natural Killer Cell Immune Checkpoints and Their Therapeutic Targeting in Cancer Treatment.Research (Washington, D.C.) · 2025Article
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Authors and funding
8 authors.
Funding
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Abstract
B7-H6 is a novel immune checkpoint molecule that triggers NK cell cytotoxicity, but the role of N-glycosylation in B7-H6 is poorly understood. We here identified the existence of N-glycosylation of B7-H6 in different cell lines and exogenous expression cells by PNGase F digestion and tunicamycin blockage. Subsequently, we demonstrated that B7-H6 contains 6 functional N-linked glycosylation sites by single site mutation and electrophoresis. Phylogenetical and structural analysis revealed that N43 and N208 glycan are conserved in jawed vertebrates and may thus contribute more to the biological functions. We further demonstrated that N43 and N208 glycosylation are essential for B7-H6 to trigger NK cell activation. Mechanistically, we found that N43 and N208 glycan contributed to the stability and membrane expression of B7-H6 protein. Lack of N208 glycosylation led to membrane B7-H6 shedding, while N43 mutation resulted in impaired B7-H6/NKp30 binding affinity. Together, our findings highlight the significance of N-linked glycosylation in B7-H6 biological functions and suggest potential targets for modulating NK cell-mediated immunity.
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