CD4+ T cells in the lungs of acute sarcoidosis patients recognize an Aspergillus nidulans epitope.
CD4+ T cells in the lungs of acute sarcoidosis patients recognize an Aspergillus nidulans epitope.
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DOI:
10.1084/jem.20210785
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发表时间:
2021-10-04
期刊:
影响因子:
--
通讯作者:
Fontenot AP
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文献类型:
--
作者:
Greaves SA;Ravindran A;Santos RG;Chen L;Falta MT;Wang Y;Mitchell AM;Atif SM;Mack DG;Tinega AN;Maier LA;Dai S;Pinilla C;Grunewald J;Fontenot AP
We identify a peptide derived from Aspergillus nidulans recognized by CD4+ T cells derived from the lungs of Löfgren’s syndrome (LS) patients and provide evidence that A. nidulans plays a role in the pathogenesis of LS. Löfgren’s syndrome (LS) is an acute form of sarcoidosis characterized by a genetic association with HLA-DRB1*03 (HLA-DR3) and an accumulation of CD4+ T cells of unknown specificity in the bronchoalveolar lavage (BAL). Here, we screened related LS-specific TCRs for antigen specificity and identified a peptide derived from NAD-dependent histone deacetylase hst4 (NDPD) of Aspergillus nidulans that stimulated these CD4+ T cells in an HLA-DR3–restricted manner. Using ELISPOT analysis, a greater number of IFN-γ– and IL-2–secreting T cells in the BAL of DR3+ LS subjects compared with DR3+ control subjects was observed in response to the NDPD peptide. Finally, increased IgG antibody responses to A. nidulans NDPD were detected in the serum of DR3+ LS subjects. Thus, our findings identify a ligand for CD4+ T cells derived from the lungs of LS patients and suggest a role of A. nidulans in the etiology of LS.
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DOI:
10.1126/science.aad2791
发表时间:
2016-02-12
期刊:
Science (New York, N.Y.)
影响因子:
--
作者:
Delong T;Wiles TA;Baker RL;Bradley B;Barbour G;Reisdorph R;Armstrong M;Powell RL;Reisdorph N;Kumar N;Elso CM;DeNicola M;Bottino R;Powers AC;Harlan DM;Kent SC;Mannering SI;Haskins K
通讯作者:
Haskins K
影响因子:
24.3
作者:
Gupta, D.;Agarwal, R.;Jindal, S. K.
通讯作者:
Jindal, S. K.
DOI:
10.1164/rccm.200608-1197oc
发表时间:
2007-01-01
影响因子:
24.7
作者:
Grunewald, Johan;Eklund, Anders
通讯作者:
Eklund, Anders
DOI:
10.1073/pnas.1001772107
发表时间:
2010-04-20
影响因子:
11.1
作者:
Dai, Shaodong;Murphy, Guinevere A.;Fontenot, Andrew P.
通讯作者:
Fontenot, Andrew P.
DOI:
10.1164/rccm.202002-0251st
发表时间:
2020-04-15
影响因子:
24.7
作者:
Crouser, Elliott D.;Maier, Lisa A.;Baughman, Robert P.
通讯作者:
Baughman, Robert P.