Chapter title |
Inflammasome Signaling and Bacterial Infections
|
---|---|
Chapter number | 5 |
Book title |
Inflammasome Signaling and Bacterial Infections
|
Published in |
Current topics in microbiology and immunology, January 2016
|
DOI | 10.1007/978-3-319-41171-2_5 |
Pubmed ID | |
Book ISBNs |
978-3-31-941170-5, 978-3-31-941171-2
|
Authors |
Hermansson, Anna-Karin, Paciello, Ida, Bernardini, Maria Lina, Anna-Karin Hermansson, Ida Paciello, Maria Lina Bernardini |
Abstract |
Shigella spp. are the causative agents of bacillary dysentery, leading to extensive mortality and morbidity worldwide. These facultative intracellular bacteria invade the epithelium of the colon and the rectum, inducing a severe inflammatory response from which the symptoms of the disease originate. Shigella are human pathogens able to manipulate and subvert the innate immune system surveillance. Shigella dampens inflammasome activation in epithelial cells. In infected macrophages, inflammasome activation and IL-1β and IL-18 release lead to massive neutrophil recruitment and greatly contribute to inflammation. Here, we describe how Shigella hijacks and finely tunes inflammasome activation in the different cell populations involved in pathogenesis: epithelial cells, macrophages, neutrophils, DCs, and B and T lymphocytes. Shigella emerges as a "sly" pathogen that switches on/off the inflammasome mechanisms in order to optimize the interaction with the host and establish a successful infection. |
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