Th17 cells carrying TCR recognizing epidermal autoantigen induce psoriasis-like skin inflammation.
J Immunol
; 191(6): 3065-72, 2013 Sep 15.
Article
em En
| MEDLINE
| ID: mdl-23956432
ABSTRACT
Psoriasis is considered a Th17-type autoimmune skin inflammatory disease; however, involvement of an autoantigen-specific TCR has not been established. In this study, we show that psoriasis-like skin inflammation can be induced by autoreactive Th17 cells. We previously developed the desmoglein 3-specific TCR-transgenic (Dsg3H1) mouse, in which CD4⺠T cells recognize physiological epidermal autoantigen. T cells from Dsg3H1 mice were polarized into Th17 cells in vitro and then adoptively transferred into Rag2â»/â» mice. Dsg3H1-Th17 cells induced severe psoriasis-like skin inflammation within 2 wk after transfer in the tissues in which desmoglein 3 is expressed. Such pathology was not observed when wild-type Th17 cells or Th1-skewed Dsg3H1 T cells were transferred, and it was strongly suppressed by anti-IL-12/23 and anti-IL-17 Abs. Although IFN-γâº/IL-17⺠T cells accumulated in the skin lesions of mice that received Dsg3H1-Th17 cells, IFN-γ-deficient Dsg3H1-Th17 cells were fully pathogenic. These results demonstrate that cutaneous psoriasis-like immunopathology can be developed by epidermis-specific recognition of Th17 cells, which is strictly dependent on IL-17 but not IFN-γ.
Texto completo:
1
Base de dados:
MEDLINE
Assunto principal:
Psoríase
/
Pele
/
Autoantígenos
/
Receptores de Antígenos de Linfócitos T
/
Células Th17
Limite:
Animals
Idioma:
En
Ano de publicação:
2013
Tipo de documento:
Article