First Author | Ramon HE | Year | 2012 |
Journal | J Immunol | Volume | 188 |
Issue | 8 | Pages | 4023-31 |
PubMed ID | 22403444 | Mgi Jnum | J:184081 |
Mgi Id | MGI:5320235 | Doi | 10.4049/jimmunol.1102779 |
Citation | Ramon HE, et al. (2012) The E3 ubiquitin ligase adaptor Ndfip1 regulates Th17 differentiation by limiting the production of proinflammatory cytokines. J Immunol 188(8):4023-31 |
abstractText | Ndfip1 is an adaptor for the E3 ubiquitin ligase Itch. Both Ndfip1- and Itch-deficient T cells are biased toward Th2 cytokine production. In this study, we demonstrate that lungs from Ndfip1(-/-) mice showed increased numbers of neutrophils and Th17 cells. This was not because Ndfip1(-/-) T cells are biased toward Th17 differentiation. In fact, fewer Ndfip1(-/-) T cells differentiated into Th17 cells in vitro due to high IL-4 production. Rather, Th17 differentiation was increased in Ndfip1(-/-) mice due to increased numbers of IL-6-producing eosinophils. IL-6 levels in mice that lacked both Ndfip1 and IL-4 were similar to wild-type controls, and these mice had fewer Th17 cells in their lungs. These results indicate that Th2 inflammation, such as that observed in Ndfip1(-/-) mice, can increase Th17 differentiation by recruiting IL-6-producing eosinophils into secondary lymphoid organs and tissues. This may explain why Th17 cells develop within an ongoing Th2 inflammatory response. |