Rare Variable M. tuberculosis Antigens induce predominant Th17 responses in human infection
CD4 T cells are essential for immunity to M. tuberculosis (Mtb), and emerging evidence indicates that IL-17-producing Th17 cells contribute to immunity to Mtb. While identifying protective T cell effector functions is important for TB vaccine design, T cell antigen specificity is also likely to be important. To identify antigens that induce protective immunity, we reasoned that as in other pathogens, effective immune recognition drives sequence diversity in individual Mtb antigens. We previously identified Mtb genes under evolutionary diversifying selection pressure whose products we term Rare Variable Mtb Antigens (RVMA). Here, in two distinct human cohorts with recent exposure to TB, we found that RVMA preferentially induce CD4 T cells that express RoRγt and produce IL-17, in contrast to 'classical' Mtb antigens that induce T cells that produce IFNγ. Our results suggest that RVMA can be valuable antigens in vaccines for those already infected with Mtb to amplify existing antigen-specific Th17 responses to prevent TB disease.
| Medienart: |
E-Artikel |
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| Erscheinungsjahr: |
2024 |
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| Erschienen: |
2024 |
| Enthalten in: |
Zur Gesamtaufnahme - year:2024 |
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| Enthalten in: |
bioRxiv : the preprint server for biology - (2024) vom: 06. März |
| Sprache: |
Englisch |
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| Beteiligte Personen: |
Ogongo, Paul [VerfasserIn] |
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| Anmerkungen: |
Date Revised 25.03.2024 published: Electronic Citation Status PubMed-not-MEDLINE |
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| doi: |
10.1101/2024.03.05.583634 |
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| Förderinstitution / Projekttitel: |
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| PPN (Katalog-ID): |
NLM36986204X |
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| 520 | |a CD4 T cells are essential for immunity to M. tuberculosis (Mtb), and emerging evidence indicates that IL-17-producing Th17 cells contribute to immunity to Mtb. While identifying protective T cell effector functions is important for TB vaccine design, T cell antigen specificity is also likely to be important. To identify antigens that induce protective immunity, we reasoned that as in other pathogens, effective immune recognition drives sequence diversity in individual Mtb antigens. We previously identified Mtb genes under evolutionary diversifying selection pressure whose products we term Rare Variable Mtb Antigens (RVMA). Here, in two distinct human cohorts with recent exposure to TB, we found that RVMA preferentially induce CD4 T cells that express RoRγt and produce IL-17, in contrast to 'classical' Mtb antigens that induce T cells that produce IFNγ. Our results suggest that RVMA can be valuable antigens in vaccines for those already infected with Mtb to amplify existing antigen-specific Th17 responses to prevent TB disease | ||
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| 700 | 1 | |a Wassie, Liya |e verfasserin |4 aut | |
| 700 | 1 | |a Tran, Anthony |e verfasserin |4 aut | |
| 700 | 1 | |a Columbus, Devin |e verfasserin |4 aut | |
| 700 | 1 | |a Sharling, Lisa |e verfasserin |4 aut | |
| 700 | 1 | |a Ouma, Gregory |e verfasserin |4 aut | |
| 700 | 1 | |a Ouma, Samuel Gurrion |e verfasserin |4 aut | |
| 700 | 1 | |a Bobosha, Kidist |e verfasserin |4 aut | |
| 700 | 1 | |a Lindestam Arlehamn, Cecilia S |e verfasserin |4 aut | |
| 700 | 1 | |a Gandhi, Neel R |e verfasserin |4 aut | |
| 700 | 1 | |a Auld, Sara C |e verfasserin |4 aut | |
| 700 | 1 | |a Rengarajan, Jyothi |e verfasserin |4 aut | |
| 700 | 1 | |a Day, Cheryl L |e verfasserin |4 aut | |
| 700 | 1 | |a Altman, John D |e verfasserin |4 aut | |
| 700 | 1 | |a Blumberg, Henry M |e verfasserin |4 aut | |
| 700 | 1 | |a Ernst, Joel D |e verfasserin |4 aut | |
| 700 | 0 | |a TBRU ASTRa Study Group |e verfasserin |4 aut | |
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