First Author | Yoshida H | Year | 2001 |
Journal | Immunity | Volume | 15 |
Issue | 4 | Pages | 569-78 |
PubMed ID | 11672539 | Mgi Jnum | J:89509 |
Mgi Id | MGI:3040562 | Doi | 10.1016/s1074-7613(01)00206-0 |
Citation | Yoshida H, et al. (2001) WSX-1 is required for the initiation of Th1 responses and resistance to L. major infection. Immunity 15(4):569-78 |
abstractText | WSX-1 is a class I cytokine receptor with homology to the IL-12 receptors. The physiological role of WSX-1, which is expressed mainly in T cells, was investigated in gene-targeted WSX-1-deficient mice. IFN-gamma production was reduced in isolated WSX-1(-/-) T cells subjected to primary stimulation in vitro to induce Th1 differentiation but was normal in fully differentiated and activated WSX-1(-/-) Th1 cells that had received secondary stimulation. WSX-1(-/-) mice were remarkably susceptible to Leishmania major infection, showing impaired IFN-gamma production early in the infection. However, IFN-gamma production during the later phases of the infection was not impaired in the knockout. WSX-1(-/-) mice also showed poorly differentiated granulomas with dispersed accumulations of mononuclear cells when infected with bacillus Calmette-Guerin (BCG). Thus, WSX-1 is essential for the initial mounting of Th1 responses but dispensable for their maintenance. |