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- Publisher Website: 10.1002/eji.201040473
- Scopus: eid_2-s2.0-77956471264
- PMID: 20690181
- WOS: WOS:000282305400015
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Article: Fixing an irrelevant TCRα chain reveals the importance of TCRβ diversity for optimal TCRαβ pairing and function of virus-specific CD8+ T cells
Title | Fixing an irrelevant TCRα chain reveals the importance of TCRβ diversity for optimal TCRαβ pairing and function of virus-specific CD8<sup>+</sup> T cells |
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Authors | |
Keywords | Influenza Viral infection CD8 T cells + TCR repertoire |
Issue Date | 2010 |
Citation | European Journal of Immunology, 2010, v. 40, n. 9, p. 2470-2481 How to Cite? |
Abstract | TCR repertoire diversity can influence the efficacy of CD8+ T-cell populations, with greater breadth eliciting better protection. We analyzed TCRβ diversity and functional capacity for influenza-specific CD8+ T cells expressing a single TCRα chain. Mice (A7) transgenic for the H2KbOVA257-264-specific Vα2.7 TCR were challenged with influenza to determine how fixing this "irrelevant" TCRα affects the "public" and restricted DbNP366+CD8+ versus the "private" and diverse DbPA224+CD8+ responses. Though both DbNP 366+CD8+ and DbPA224+CD8+ sets are generated in virus-primed A7 mice, the constrained DbNP366+CD8+ population lacked the characteristic, public TCRVβ8.3, and consequently was reduced in magnitude and pMHC-I avidity. For the more diverse DbPA 224+CD8+ T cells, this particular forcing led to a narrowing and higher TCRβ conservation of the dominant Vβ7, though the responses were of comparable magnitude to C57BL/6J controls. Interestingly, although both the TCRβ diversity and the cytokine profiles were reduced for the DbNP366+CD8+ and DbPA224+CD8+ sets in spleen, the latter measure of polyfunctionality was comparable for T cells recovered from the infected lungs of A7 and control mice. Even "sub-optimal" TCRαβ pairs can operate effectively when exposed in amilieu of high virus load. Thus, TCRβ diversity is important for optimal TCRαβ pairing and function when TCRα is limiting. © 2010 Wiley-VCH Verlag GmbH & Co. KGaA. |
Persistent Identifier | http://hdl.handle.net/10722/241189 |
ISSN | 2021 Impact Factor: 6.688 2020 SCImago Journal Rankings: 2.272 |
ISI Accession Number ID |
DC Field | Value | Language |
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dc.contributor.author | Valkenburg, Sophie A. | - |
dc.contributor.author | Day, E. Bridie | - |
dc.contributor.author | Swan, Natasha G. | - |
dc.contributor.author | Croom, Hayley A. | - |
dc.contributor.author | Carbone, Francis R. | - |
dc.contributor.author | Doherty, Peter C. | - |
dc.contributor.author | Turner, Stephen J. | - |
dc.contributor.author | Kedzierska, Katherine | - |
dc.date.accessioned | 2017-05-26T03:37:03Z | - |
dc.date.available | 2017-05-26T03:37:03Z | - |
dc.date.issued | 2010 | - |
dc.identifier.citation | European Journal of Immunology, 2010, v. 40, n. 9, p. 2470-2481 | - |
dc.identifier.issn | 0014-2980 | - |
dc.identifier.uri | http://hdl.handle.net/10722/241189 | - |
dc.description.abstract | TCR repertoire diversity can influence the efficacy of CD8+ T-cell populations, with greater breadth eliciting better protection. We analyzed TCRβ diversity and functional capacity for influenza-specific CD8+ T cells expressing a single TCRα chain. Mice (A7) transgenic for the H2KbOVA257-264-specific Vα2.7 TCR were challenged with influenza to determine how fixing this "irrelevant" TCRα affects the "public" and restricted DbNP366+CD8+ versus the "private" and diverse DbPA224+CD8+ responses. Though both DbNP 366+CD8+ and DbPA224+CD8+ sets are generated in virus-primed A7 mice, the constrained DbNP366+CD8+ population lacked the characteristic, public TCRVβ8.3, and consequently was reduced in magnitude and pMHC-I avidity. For the more diverse DbPA 224+CD8+ T cells, this particular forcing led to a narrowing and higher TCRβ conservation of the dominant Vβ7, though the responses were of comparable magnitude to C57BL/6J controls. Interestingly, although both the TCRβ diversity and the cytokine profiles were reduced for the DbNP366+CD8+ and DbPA224+CD8+ sets in spleen, the latter measure of polyfunctionality was comparable for T cells recovered from the infected lungs of A7 and control mice. Even "sub-optimal" TCRαβ pairs can operate effectively when exposed in amilieu of high virus load. Thus, TCRβ diversity is important for optimal TCRαβ pairing and function when TCRα is limiting. © 2010 Wiley-VCH Verlag GmbH & Co. KGaA. | - |
dc.language | eng | - |
dc.relation.ispartof | European Journal of Immunology | - |
dc.subject | Influenza | - |
dc.subject | Viral infection | - |
dc.subject | CD8 T cells + | - |
dc.subject | TCR repertoire | - |
dc.title | Fixing an irrelevant TCRα chain reveals the importance of TCRβ diversity for optimal TCRαβ pairing and function of virus-specific CD8<sup>+</sup> T cells | - |
dc.type | Article | - |
dc.description.nature | link_to_OA_fulltext | - |
dc.identifier.doi | 10.1002/eji.201040473 | - |
dc.identifier.pmid | 20690181 | - |
dc.identifier.scopus | eid_2-s2.0-77956471264 | - |
dc.identifier.volume | 40 | - |
dc.identifier.issue | 9 | - |
dc.identifier.spage | 2470 | - |
dc.identifier.epage | 2481 | - |
dc.identifier.eissn | 1521-4141 | - |
dc.identifier.isi | WOS:000282305400015 | - |
dc.identifier.issnl | 0014-2980 | - |