Pseudomonas aeruginosa injects type III effector ExoS into epithelial cells through the function of type IV pili.

@article{Hayashi2015PseudomonasAI,
  title={Pseudomonas aeruginosa injects type III effector ExoS into epithelial cells through the function of type IV pili.},
  author={Naoki Hayashi and Hideyuki Nishizawa and Seiya Kitao and Sakurako Deguchi and Takano Nakamura and Akiyo Fujimoto and Mototsugu Shikata and Naomasa Gotoh},
  journal={FEBS letters},
  year={2015},
  volume={589 8},
  pages={890-6}
}
Translocation of Pseudomonas aeruginosa through epithelial tissues can cause sepsis. Here, we examined whether P. aeruginosa penetrates epithelial cell layers using type IV pili (TFP). Deletion of TFP (pilA) did not affect association with Caco-2 cells, although it decreased penetration through, and disruption of, Caco-2 cell monolayers. We found that TFP are necessary for injection of the type III effector ExoS, which impairs defense against P. aeruginosa penetration, into host cells. Deletion… CONTINUE READING
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