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QTL Mapping and CRISPR/Cas9 Editing to Identify a Drug Resistance Gene in Toxoplasma gondii
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Exosomes derived from Toxoplasma gondii stimulate an inflammatory response through JNK signaling pathway

Yawen Li1, Fangming Xiu2, Zezhong Mou3

  • 1Department of Pathogen Biology, School of Basic Medical Sciences, Shandong University, Jinan, PR China.

Nanomedicine (London, England)
|March 16, 2018
PubMed
Abstract

Insights

Toxoplasma gondii exosomes activate the JNK pathway in macrophages, increasing innate immune responses. This highlights their role in host-pathogen interactions.

Area of Science:

  • Cell Biology
  • Immunology
  • Parasitology

Background:

  • Exosomes are key mediators of intercellular communication, transferring bioactive molecules between cells.
  • Toxoplasma gondii, an intracellular parasite, interacts extensively with host cells.

Purpose of the Study:

  • To characterize exosomes derived from Toxoplasma gondii.
  • To investigate the immune response elicited by T. gondii exosomes in macrophages.

Main Methods:

  • Exosome identification using transmission electron microscopy, nanotracking analysis, and western blotting.
  • Functional assays in RAW264.7 cells to assess cytokine and mRNA induction.
  • Analysis of MAPK pathway activation, including JNK phosphorylation and translocation.

Main Results:

  • T. gondii exosomes were successfully identified and characterized.
  • Activation of the JNK pathway was observed in macrophages upon exposure to T. gondii exosomes.
  • Significant increases in IL-12, IFN-γ, and TNF-α production were detected.

Conclusions:

  • T. gondii exosomes stimulate innate immunity via JNK pathway activation.
  • These findings offer new insights into the regulatory mechanisms governing host-pathogen interactions during T. gondii infection.
Keywords:
JNK/MAPK signalingToxoplasma gondiicytokinesexosomes

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