Cutting Edge: Susceptibility to the Larval Stage of the Helminth Parasite Taenia crassiceps Is Mediated by Th2 Response Induced Via STAT6 Signaling

Using STAT6(-/-) BALB/c mice, we analyzed the role of STAT6-induced Th2 response in determining the outcome of murine cysticercosis caused by the helminth parasite Taenia crassiceps. After T. crassiceps infection, wild-type BALB/c mice developed a strong Th2-like response; produced high levels of Ig...

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Published in:The Journal of immunology (1950) 2002-04, Vol.168 (7), p.3135-3139
Main Authors: Rodriguez-Sosa, Miriam, David, John R, Bojalil, Rafael, Satoskar, Abhay R, Terrazas, Luis I
Format: Article
Language:English
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Summary:Using STAT6(-/-) BALB/c mice, we analyzed the role of STAT6-induced Th2 response in determining the outcome of murine cysticercosis caused by the helminth parasite Taenia crassiceps. After T. crassiceps infection, wild-type BALB/c mice developed a strong Th2-like response; produced high levels of IgG1, IgE, IL-4, as well as IL-13; and remained susceptible to T. crassiceps. In contrast, similarly infected STAT6(-/-) mice mounted a strong Th1-like response; produced high levels of IgG2a, IL-12, IFN-gamma, as well as nitric oxide; and efficiently controlled T. crassiceps infection. These findings demonstrate that Th2-like response induced via STAT6-mediated signaling pathway mediates susceptibility to T. crassiceps and, furthermore, that unlike the case in most helminths, immunity against T. crassiceps is mediated by a Th1-like rather than Th2-like response.
ISSN:0022-1767
1550-6606
DOI:10.4049/jimmunol.168.7.3135