First Author | Fang D | Year | 2002 |
Journal | Nat Immunol | Volume | 3 |
Issue | 3 | Pages | 281-7 |
PubMed ID | 11828324 | Mgi Jnum | J:108987 |
Mgi Id | MGI:3625559 | Doi | 10.1038/ni763 |
Citation | Fang D, et al. (2002) Dysregulation of T lymphocyte function in itchy mice: a role for Itch in TH2 differentiation. Nat Immunol 3(3):281-7 |
abstractText | Itch is an E3 ubiquitin ligase that is disrupted in nonagouti-lethal or itchy mice. Itch deficiency leads to severe immune and inflammatory disorders and constant itching of the skin. Here we show that Itchminus sign/minus sign T cells show an activated phenotype and enhanced proliferation. Production of the type 2 T helper (TH2) cell cytokines interleukin 4 (IL-4) and IL-5 by Itchminus sign/minus sign T cells was augmented upon stimulation, and the TH2-dependent serum concentrations of immunoglobulin G1 (IgG1) and IgE in itchy mice were also increased. Molecularly, Itch associated with and induced ubiquitination of JunB, a transcription factor that is involved in TH2 differentiation. These results provide a molecular link between Itch deficiency and the aberrant activation of immune responses in itchy mice. |