First Author | Urban JF Jr | Year | 1998 |
Journal | Immunity | Volume | 8 |
Issue | 2 | Pages | 255-64 |
PubMed ID | 9492006 | Mgi Jnum | J:110429 |
Mgi Id | MGI:3640223 | Doi | 10.1016/s1074-7613(00)80477-x |
Citation | Urban JF Jr, et al. (1998) IL-13, IL-4Ralpha, and Stat6 are required for the expulsion of the gastrointestinal nematode parasite Nippostrongylus brasiliensis. Immunity 8(2):255-64 |
abstractText | Although IL-4 induces expulsion of the gastrointestinal nematode parasite, Nippostrongylus brasiliensis, from immunodeficient mice, this parasite is expelled normally by IL-4-deficient mice. This apparent paradox is explained by observations that IL-4 receptor alpha chain (IL-4Ralpha)-deficient mice and Stat6-deficient mice fail to expel N. brasiliensis, and a specific antagonist for IL-13, another activator of Stat6 through IL-4Ralpha, prevents worm expulsion. Thus, N. brasiliensis expulsion requires signaling via IL-4Ralpha and Stat6, and IL-13 may be more important than IL-4 as an inducer of the Stat6 signaling that leads to worm expulsion. Additional observations made in the course of these experiments demonstrate that Stat6 signaling is not required for IL-4 enhancement of IgG1 production and actually inhibits IL-4-induction of mucosal mastocytosis. |