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Frick R, Gunnarsen KS, Dahal-Koirala S, Risnes LF, Sollid LM, Sandlie I, Høydahl LS, Løset GÅ. A TRAV26-1-encoded recognition motif focuses the biased T cell response in celiac disease. Eur J Immunol 2019; 50:142-145. [PMID: 31580480 DOI: 10.1002/eji.201948235] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2019] [Revised: 07/10/2019] [Indexed: 11/08/2022]
Abstract
The semi-public T-cell response towards the gluten epitope DQ2.5-glia-α2 uses a prototypic TCR encoded by the germline segments TRAV26-1 and TRBV7-2. Through mutagenesis experiments, we show that a TRAV26-1encoded recognition motif contacts the MHC β-chain and the TCR CDR3β loop underpinning this conserved T-cell response restricted to the prototypic TCRs.
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Affiliation(s)
- Rahel Frick
- Department of Immunology, University of Oslo and Oslo University Hospital, Oslo, Norway.,Department of Biosciences, University of Oslo, Oslo, Norway
| | - Kristin Støen Gunnarsen
- Department of Immunology, University of Oslo and Oslo University Hospital, Oslo, Norway.,Department of Biosciences, University of Oslo, Oslo, Norway
| | - Shiva Dahal-Koirala
- Department of Immunology, University of Oslo and Oslo University Hospital, Oslo, Norway.,KG Jebsen Coeliac Disease Research Centre, University of Oslo, Oslo, Norway
| | - Louise Fremgaard Risnes
- Department of Immunology, University of Oslo and Oslo University Hospital, Oslo, Norway.,KG Jebsen Coeliac Disease Research Centre, University of Oslo, Oslo, Norway
| | - Ludvig M Sollid
- Department of Immunology, University of Oslo and Oslo University Hospital, Oslo, Norway.,KG Jebsen Coeliac Disease Research Centre, University of Oslo, Oslo, Norway
| | - Inger Sandlie
- Department of Immunology, University of Oslo and Oslo University Hospital, Oslo, Norway.,Department of Biosciences, University of Oslo, Oslo, Norway
| | - Lene Støkken Høydahl
- Department of Immunology, University of Oslo and Oslo University Hospital, Oslo, Norway.,Department of Biosciences, University of Oslo, Oslo, Norway.,KG Jebsen Coeliac Disease Research Centre, University of Oslo, Oslo, Norway
| | - Geir Åge Løset
- Department of Biosciences, University of Oslo, Oslo, Norway.,Nextera AS, Oslo, Norway
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