ArticleThe Journal of experimental medicine2025
Identification of α-galactosylceramide as an endogenous mammalian antigen for iNKT cells.
Article in The Journal of experimental medicine, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 6 papers.
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.
Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.
Who cites it
6 citing papers in PubMed.
- Dynamic Lipidomic Remodeling and Clinical Correlations after Sleeve Gastrectomy in Obese Subjects.Diabetes & metabolism journal · 2026Article
- Innate-like T Cell Biology in the Tumor Microenvironment Implications for Cancer Immunotherapy.Cells · 2026Review
- A trivalent gastric cancer antigen conjugated to a diphtheria toxin epitope synergizes with an NKT cell agonist to boost antitumor immunity.Frontiers in immunology · 2026Article
- In Vivo Iterative Adjuvant Screening Identifies an Intranasal Vaccine Formulation for Elicitation of Protective Mucosal Immune Responses Against SARS-CoV-2.Pharmaceutics · 2025Article
- CAR-iNKT cells: redefining the frontiers of cellular immunotherapy.Frontiers in immunology · 2025Review
- Peripheral blood iNKT cells display an activated profile with both increased apoptosis and dysfunction in obesity.Frontiers in immunology · 2025Article
Corrections and comments
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Authors and funding
13 authors.
Funding
Abstract
Invariant natural killer T (iNKT) cells are unconventional T cells recognizing lipid antigens in a CD1d-restricted manner. Among these lipid antigens, α-galactosylceramide (α-GalCer), which was originally identified in marine sponges, is the most potent antigen. Although the presence of α-anomeric hexosylceramide and microbiota-derived branched α-GalCer is reported, antigenic α-GalCer has not been identified in mammals. Here, we developed a high-resolution separation and detection system, supercritical fluid chromatography tandem mass spectrometry (SFC/MS/MS), that can discriminate hexosylceramide diastereomers (α-GalCer, α-GlcCer, β-GalCer, or β-GlcCer). The B16 melanoma tumor cell line does not activate iNKT cells; however, ectopic expression of CD1d was sufficient to activate iNKT cells without adding antigens. B16 melanoma was unlikely to generate iNKT cell antigens; instead, antigen activity was detected in cell culture serum. Activity-based purification and SFC/MS/MS identified dihydrosphingosine-based saturated α-GalCer as an antigenic component in serum, bile, and lymphoid tissues. These results show the first evidence for the presence of potent antigenic α-GalCer in mammals.
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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.