5ks9 Citations

Diverse T Cell Receptor Gene Usage in HLA-DQ8-Associated Celiac Disease Converges into a Consensus Binding Solution.

Structure 24 1643-1657 (2016)
Related entries: 5ksa, 5ksb

Cited: 36 times
EuropePMC logo PMID: 27568928

Abstract

In HLA-DQ8-associated celiac disease, TRAV26-2+-TRBV9+ and TRAV8-3+-TRBV6+ T cells recognize the immunodominant DQ8-glia-α1 epitope, whereupon a non-germline-encoded arginine residue played a key role in binding HLA-DQ8-glia-α1. Whether distinct T cell receptor (TCR) recognition modes exist for gliadin epitopes remains unclear. TCR repertoire analysis revealed populations of HLA-DQ8-glia-α1 and HLA-DQ8.5-glia-γ1 restricted TRAV20+-TRBV9+ T cells that did not possess a non-germline-encoded arginine residue. The crystal structures of a TRAV20+-TRBV9+ TCR-HLA-DQ8-glia-α1 complex and two TRAV20+-TRBV9+ TCR-HLA-DQ8.5-glia-γ1 complexes were determined. This revealed that the differential specificity toward DQ8-glia-α1 and DQ8.5-glia-γ1 was governed by CDR3β-loop-mediated interactions. Surprisingly, a germline-encoded arginine residue within the CDR1α loop of the TRAV20+ TCR substituted for the role of the non-germline-encoded arginine in the TRAV26-2+-TRBV9+ and TRAV8-3+-TRBV6+ TCRs. Thus, in celiac disease, the responding TCR repertoire is driven by a common mechanism that selects for structural elements within the TCR that have convergent binding solutions in HLA-DQ8-gliadin recognition.

Reviews - 5ks9 mentioned but not cited (3)

  1. Emerging Concepts in TCR Specificity: Rationalizing and (Maybe) Predicting Outcomes. Singh NK, Riley TP, Baker SCB, Borrman T, Weng Z, Baker BM. J Immunol 199 2203-2213 (2017)
  2. The Many Faces of CD4+ T Cells: Immunological and Structural Characteristics. Chatzileontiadou DSM, Sloane H, Nguyen AT, Gras S, Grant EJ. Int J Mol Sci 22 E73 (2020)
  3. Molecular Basis for Global Incidence of Pemphigoid Diseases and Differences in Phenotypes. Ahmed AR, Anwar S, Reche PA. Front Immunol 13 807173 (2022)

Articles - 5ks9 mentioned but not cited (2)



Reviews citing this publication (6)

  1. T Cells in Celiac Disease. Jabri B, Sollid LM. J Immunol 198 3005-3014 (2017)
  2. Update 2020: nomenclature and listing of celiac disease-relevant gluten epitopes recognized by CD4+ T cells. Sollid LM, Tye-Din JA, Qiao SW, Anderson RP, Gianfrani C, Koning F. Immunogenetics 72 85-88 (2020)
  3. The roles of MHC class II genes and post-translational modification in celiac disease. Sollid LM. Immunogenetics 69 605-616 (2017)
  4. CRISPR/Cas9 Gene Editing of Gluten in Wheat to Reduce Gluten Content and Exposure-Reviewing Methods to Screen for Coeliac Safety. Jouanin A, Gilissen LJWJ, Schaart JG, Leigh FJ, Cockram J, Wallington EJ, Boyd LA, van den Broeck HC, van der Meer IM, America AHP, Visser RGF, Smulders MJM. Front Nutr 7 51 (2020)
  5. Recent Progress and Recommendations on Celiac Disease From the Working Group on Prolamin Analysis and Toxicity. Scherf KA, Catassi C, Chirdo F, Ciclitira PJ, Feighery C, Gianfrani C, Koning F, Lundin KEA, Schuppan D, Smulders MJM, Tranquet O, Troncone R, Koehler P. Front Nutr 7 29 (2020)
  6. Single-cell approaches to dissect adaptive immune responses involved in autoimmunity: the case of celiac disease. Lindeman I, Sollid LM. Mucosal Immunol 15 51-63 (2022)

Articles citing this publication (25)