A high-affinity human TCR-like antibody detects celiac disease gluten peptide-MHC complexes and inhibits T cell activation.
A high-affinity human TCR-like antibody detects celiac disease gluten peptide-MHC complexes and inhibits T cell activation.
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高亲和力人TCR样抗体检测乳糜泻谷蛋白肽-MHC复合物并抑制T细胞活化。
DOI:
10.1126/sciimmunol.abg4925
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发表时间:
2021-08-20
影响因子:
24.8
通讯作者:
Løset GÅ
中科院分区:
文献类型:
--
作者:
Frick R;Høydahl LS;Petersen J;du Pré MF;Kumari S;Berntsen G;Dewan AE;Jeliazkov JR;Gunnarsen KS;Frigstad T;Vik ES;Llerena C;Lundin KEA;Yaqub S;Jahnsen J;Gray JJ;Rossjohn J;Sollid LM;Sandlie I;Løset GÅ
Antibodies specific for peptides bound to human leukocyte antigen (HLA) molecules are valuable tools for studies of antigen presentation and may have therapeutic potential. Here, we generated human T-cell receptor (TCR)-like antibodies towards the immunodominant signature gluten epitope DQ2.5-glia-α2 in celiac disease (CeD). Phage display selection combined with secondary targeted engineering was used to obtain highly specific antibodies with picomolar affinity. The crystal structure of a Fab fragment of the lead antibody 3.C11 in complex with HLA-DQ2.5:DQ2.5-glia-α2 revealed a binding geometry and interaction mode highly similar to prototypic TCRs specific for the same complex. Assessment of CeD biopsy material confirmed disease specificity and reinforced the notion that abundant plasma cells present antigen in the inflamed CeD gut. Further, 3.C11 specifically inhibited activation and proliferation of gluten-specific CD4+ T cells in vitro and in HLA-DQ2.5 humanized mice, suggesting a potential for targeted intervention without compromising systemic immunity. A human TCR-like antibody blocks gluten-dependent activation of celiac disease T-cells in vitro and in HLA-DQ2.5 humanized mice.
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影响因子:
--
作者:
Straetemans T;van Brakel M;van Steenbergen S;Broertjes M;Drexhage J;Hegmans J;Lambrecht BN;Lamers C;van Der Bruggen P;Coulie PG;Debets R
通讯作者:
Debets R
影响因子:
3.7
作者:
Beitnes, A. -C. R.;Raki, M.;Jahnsen, F. L.
通讯作者:
Jahnsen, F. L.
影响因子:
--
作者:
Bentley G;Higuchi R;Hoglund B;Goodridge D;Sayer D;Trachtenberg EA;Erlich HA
通讯作者:
Erlich HA
DOI:
10.1107/s0907444904019158
发表时间:
2004-12-01
影响因子:
2.2
作者:
Emsley, P;Cowtan, K
通讯作者:
Cowtan, K
影响因子:
3.5
作者:
Gunnarsen, Kristin S.;Lunde, Elin;Loset, Geir A.
通讯作者:
Loset, Geir A.