Cysteine carboxyethylation generates neoantigens to induce HLA-restricted autoimmunity.
Journal
Science (New York, N.Y.)
ISSN: 1095-9203
Titre abrégé: Science
Pays: United States
ID NLM: 0404511
Informations de publication
Date de publication:
17 03 2023
17 03 2023
Historique:
entrez:
17
3
2023
pubmed:
18
3
2023
medline:
21
3
2023
Statut:
ppublish
Résumé
Autoimmune diseases such as ankylosing spondylitis (AS) can be driven by emerging neoantigens that disrupt immune tolerance. Here, we developed a workflow to profile posttranslational modifications involved in neoantigen formation. Using mass spectrometry, we identified a panel of cysteine residues differentially modified by carboxyethylation that required 3-hydroxypropionic acid to generate neoantigens in patients with AS. The lysosomal degradation of integrin αIIb [ITGA2B (CD41)] carboxyethylated at Cys96 (ITGA2B-ceC96) generated carboxyethylated peptides that were presented by HLA-DRB1*04 to stimulate CD4
Identifiants
pubmed: 36927018
doi: 10.1126/science.abg2482
doi:
Substances chimiques
Autoantibodies
0
Cysteine
K848JZ4886
HLA-DRB1 Chains
0
Integrin alpha2
0
3-hydroxypropionaldehyde
2134-29-4
Types de publication
Journal Article
Langues
eng
Sous-ensembles de citation
IM
Pagination
eabg2482Commentaires et corrections
Type : CommentIn