CD155 (PVR/Necl5) mediates a costimulatory signal in CD4+ T cells and regulates allergic inflammation.
J Immunol
; 194(12): 5644-53, 2015 Jun 15.
Article
em En
| MEDLINE
| ID: mdl-25972481
Although Th1 and Th2 cells are known to be involved in allergic inflammatory diseases, the molecular mechanisms underlying their differentiation are incompletely understood. In this study, we identified CD155 as a costimulatory molecule on CD4(+) T cells. Importantly, CD155-mediated signaling induced Th1 development in both humans and mice, as evidenced by production of IFN-γ and upregulation of Tbx21 transcription; these effects were independent of IL-12 but dependent on NF-κB-induced autocrine IFN-γ that triggered positive feedback via STAT1 activation. Mice genetically deficient in CD155 or treated with anti-CD155 Ab exhibited attenuated Th1-type contact hypersensitivity. Thus, CD155 plays an important regulatory role in helper T cell differentiation and allergic diseases.
Texto completo:
1
Base de dados:
MEDLINE
Assunto principal:
Receptores Virais
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Linfócitos T CD4-Positivos
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Transdução de Sinais
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Hipersensibilidade
Tipo de estudo:
Prognostic_studies
Limite:
Animals
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Humans
Idioma:
En
Ano de publicação:
2015
Tipo de documento:
Article