Abstract Title:

Toxoplasma gondii mitogen-activated protein kinases are associated with inflammasome activation in infected mice.

Abstract Source:

Microbes Infect. 2016 Jul 27. Epub 2016 Jul 27. PMID: 27475900

Abstract Author(s):

Shuchao Wang, Zedong Wang, Yi Gu, Zhongyu Li, Zhongyuan Li, Feng Wei, Quan Liu

Article Affiliation:

Shuchao Wang

Abstract:

Toxoplasma gondii can activate the nucleotide-binding domain and leucine-rich repeat-containing proteins NLRP1/3 inflammasomes, which mediate host resistance to the infection. Here we showed that deletion of mitogen-activated protein kinases MAPK1 and MAPK2 of type I parasite decreases acute virulence in mice, characterized by low levels of interleukin (IL)-18, NLRP1/3, ASC, and caspase-1, and high levels of IL-10 and interferon (IFN)-β transcripts. Additionally, the mutants increased phosphorylation of STAT1, and decreased phosphorylation of STAT3. These findings suggest that MAPKs are associated with inflammasome activation in T. gondii-infected mice, which may contribute to new insight into the pathogenesis of T. gondii infection.

Study Type : Animal Study

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