ArticleDiabetes2024
CD4+ T Cells From Individuals With Type 1 Diabetes Respond to a Novel Class of Deamidated Peptides Formed in Pancreatic Islets.
Article in Diabetes, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 10 papers.
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Who cites it
10 citing papers in PubMed, 5 citations in OpenAlex.
- Oxidative Stress, Post-Translational Modifications, and Type 1 Diabetes Pathogenesis.Immunological reviews · 2026Review
- Discovery of Post-Translationally Modified Epitopes in Autoimmunity: Someone Has to Fish so Everyone Can Eat.Immunological reviews · 2026Review
- From Disposal to Display: Crinophagy as a β-Cell Source of Neoantigens in Type 1 Diabetes.Immunological reviews · 2026Review
- Beyond Sequence: Posttranslational Remodeling of Antigens in Autoimmunity.Immunological reviews · 2026Review
- Citrullination and Deamidation in Type 1 Diabetes: Linking Beta Cell Stress to Neoantigen-Driven Autoimmunity.Immunological reviews · 2026Review
- Structural Remodeling of TCR-HLA-DQ8 Recognition by a β-Cell Stress-Associated C19S Insulin Neoepitope in Type 1 Diabetes.International journal of molecular sciences · 2026Article
- Beyond bystanders: How β cell stress shapes the autoimmune response in T1D.Science translational medicine · 2026Review
- Immune signaling as a determinant of cellular identity and tissue function.Frontiers in immunology · 2026Review
- Article
- Immunopeptidomics for autoimmunity: unlocking the chamber of immune secrets.NPJ systems biology and applications · 2025Review
Corrections and comments
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Authors and funding
15 authors at 5 institutions in 3 countries.
Funding
Abstract
The β-cell plays a crucial role in the pathogenesis of type 1 diabetes, in part through the posttranslational modification of self-proteins by biochemical processes such as deamidation. These neoantigens are potential triggers for breaking immune tolerance. We report the detection by LC-MS/MS of 16 novel Gln and 27 novel Asn deamidations in 14 disease-related proteins within inflammatory cytokine-stressed human islets of Langerhans. T-cell clones responsive against one Gln- and three Asn-deamidated peptides could be isolated from peripheral blood of individuals with type 1 diabetes. Ex vivo HLA class II tetramer staining detected higher T-cell frequencies in individuals with the disease compared with control individuals. Furthermore, there was a positive correlation between the frequencies of T cells specific for deamidated peptides, insulin antibody levels at diagnosis, and duration of disease. These results highlight that stressed human islets are prone to enzymatic and biochemical deamidation and suggest that both Gln- and Asn-deamidated peptides can promote the activation and expansion of autoreactive CD4+ T cells. These findings add to the growing evidence that posttranslational modifications undermine tolerance and may open the road for the development of new diagnostic and therapeutic applications for individuals living with type 1 diabetes. ARTICLE HIGHLIGHTS:
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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.