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Bacteria tune interferon responses by playing with chromatin.
MedLine Citation:
PMID:  22286704     Owner:  NLM     Status:  Publisher    
Abstract/OtherAbstract:
Bacterial infections, like their viral counterparts, trigger the onset of innate immune defense mechanisms through the release of cytokines, including interferons (IFNs). While type I and II IFN responses to bacteria have long been explored, type III remains poorly addressed. We have recently reported that the pathogen Listeria monocytogenes triggers the expression of type I and III IFN genes in epithelial cells, and is able to fine-tune downstream signaling at the chromatin level. This bacterium can negatively or positively modulate the expression of interferon-stimulated genes (ISGs) by manipulating the function of BAHD1, a component of a host chromatin-silencing complex. To this end, L. monocytogenes tightly controls the secretion of a BAHD1 inhibitory factor, LntA. Here, we further document the current knowledge about chromatin mechanisms modulating interferon responses during host-bacteria interplay, and discuss their physiological consequences.
Authors:
Alice Lebreton; Pascale Cossart; Hélène Bierne
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Publication Detail:
Type:  JOURNAL ARTICLE     Date:  2012-1-01
Journal Detail:
Title:  Virulence     Volume:  3     ISSN:  2150-5608     ISO Abbreviation:  -     Publication Date:  2012 Jan 
Date Detail:
Created Date:  2012-1-30     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  101531386     Medline TA:  Virulence     Country:  -    
Other Details:
Languages:  ENG     Pagination:  -     Citation Subset:  -    
Affiliation:
Unité des Interactions Bactéries-Cellules; Institut Pasteur; and INSERM U604; and INRA USC2020; Paris, France.
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