| First Author | Iijima H | Year | 1999 |
| Journal | J Exp Med | Volume | 190 |
| Issue | 5 | Pages | 607-15 |
| PubMed ID | 10477546 | Mgi Jnum | J:57609 |
| Mgi Id | MGI:1345003 | Doi | 10.1084/jem.190.5.607 |
| Citation | Iijima H, et al. (1999) Alteration of interleukin 4 production results in the inhibition of T helper type 2 cell-dominated inflammatory bowel disease in T cell receptor alpha chain-deficient mice. J Exp Med 190(5):607-15 |
| abstractText | T cell receptor alpha chain-deficient (TCR-alpha(-/-)) mice are known to spontaneously develop inflammatory bowel disease (IBD). The colitis that develops in these mice is associated with increased numbers of T helper cell (Th)2-type CD4(+)TCR-betabeta (CD4(+)betabeta) T cells producing predominantly interleukin (IL)-4. To investigate the role of these Th2-type CD4(+)betabeta T cells, we treated TCR-alpha(-/-) mice with anti-IL-4 monoclonal antibody (mAb). Approximately 60% of TCR-alpha(-/-) mice, including those treated with mock Ab and those left untreated, spontaneously developed IBD. However, anti-IL-4 mAb-treated mice exhibited no clinical or histological signs of IBD, and their levels of mucosal and systemic Ab responses were lower than those of mock Ab-treated mice. Although TCR-alpha(-/-) mice treated with either specific or mock Ab developed CD4(+)betabeta T cells, only those treated with anti-IL-4 mAb showed a decrease in Th2-type cytokine production at the level of mRNA and protein and an increase in interferon gamma-specific expression. These findings suggest that IL-4-producing Th2-type CD4(+)betabeta T cells play a major immunopathological role in the induction of IBD in TCR-alpha(-/-) mice, a role that anti-IL-4 mAb inhibits by causing Th2-type CD4(+)betabeta T cells to shift to the Th1 type. |
