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Articolul precedent |
Articolul urmator |
140 1 |
Ultima descărcare din IBN: 2024-03-07 09:10 |
SM ISO690:2012 PANDA, Sudhasini, MORGAN, Jeffrey, CHENG, Catherine, SAITO, Mayuko, GILMAN, Robert Hugh, CIOBANU, Nelly, KRUDU, V., CATANZARO, Antonino, CATANZARO, Donald G., RODWELL, Timothy C., PERERA, Judy S. B., CHATHURANGA, Teshan, NOI, Autori. Identification of differentially recognized T cell epitopes in the spectrum of tuberculosis infection. In: Nature Communications, 2024, vol. 15, pp. 1-14. ISSN 2041-1723. DOI: https://doi.org/10.1038/s41467-024-45058-9 |
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Nature Communications | |
Volumul 15 / 2024 / ISSN 2041-1723 | |
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DOI:https://doi.org/10.1038/s41467-024-45058-9 | |
Pag. 1-14 | |
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Rezumat | |
There is still incomplete knowledge of which Mycobacterium tuberculosis (Mtb) antigens can trigger distinct T cell responses at different stages of infection. Here, a proteome-wide screen of 20,610 Mtb-derived peptides in 21 patients mid-treatment for active tuberculosis (ATB) reveals IFNγ-specific T cell responses against 137 unique epitopes. Of these, 16% are recognized by two or more participants and predominantly derived from cell wall and cell processes antigens. There is differential recognition of antigens, including TB vaccine candidate antigens, between ATB participants and interferon-gamma release assay (IGRA + /−) individuals. We developed an ATB-specific peptide pool (ATB116) consisting of epitopes exclusively recognized by ATB participants. This pool can distinguish patients with pulmonary ATB from IGRA + /− individuals from various geographical locations, with a sensitivity of over 60% and a specificity exceeding 80%. This proteome-wide screen of T cell reactivity identified infection stage-specific epitopes and antigens for potential use in diagnostics and measuring Mtb-specific immune responses. |
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Cuvinte-cheie adult, article, controlled study, Diagnosis, human, immune response, interferon gamma release assay, Male, Mycobacterium tuberculosis, nonhuman, T lymphocyte, tuberculosis |
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