Journal article
Epithelial Proinflammatory Response and Curcumin-Mediated Protection from Staphylococcal Toxic Shock Syndrome Toxin-1
PloS one, Vol.7(3), pp.e32813-e32813
03/14/2012
DOI: 10.1371/journal.pone.0032813
PMCID: PMC3303796
PMID: 22431984
Abstract
Staphylococcus aureus initiates infections and produces virulence factors, including superantigens (SAgs), at mucosal surfaces. The SAg, Toxic Shock Syndrome Toxin-1 (TSST-1) induces cytokine secretion from epithelial cells, antigen presenting cells (APCs) and T lymphocytes, and causes toxic shock syndrome (TSS). This study investigated the mechanism of TSST-1-induced secretion of proinflammatory cytokines from human vaginal epithelial cells (HVECs) and determined if curcumin, an anti-inflammatory agent, could reduce TSST-1-mediated pathology in a rabbit vaginal model of TSS. TSST-1 caused a significant increase in NF-κB-dependent transcription in HVECs that was associated with increased expression of TNF- α, MIP-3α, IL-6 and IL-8. Curcumin, an antagonist of NF-κB-dependent transcription, inhibited IL-8 production from ex vivo porcine vaginal explants at nontoxic doses. In a rabbit model of TSS, co-administration of curcumin with TSST-1 intravaginally reduced lethality by 60% relative to 100% lethality in rabbits receiving TSST-1 alone. In addition, TNF-α was undetectable from serum or vaginal tissue of curcumin treated rabbits that survived. These data suggest that the inflammatory response induced at the mucosal surface by TSST-1 is NF-κB dependent. In addition, the ability of curcumin to prevent TSS in vivo by co-administration with TSST-1 intravaginally suggests that the vaginal mucosal proinflammatory response to TSST-1 is important in the progression of mTSS.
Details
- Title: Subtitle
- Epithelial Proinflammatory Response and Curcumin-Mediated Protection from Staphylococcal Toxic Shock Syndrome Toxin-1
- Creators
- Matthew M Schaefers - The University of Hong Kong, Hong KongLaura M Breshears - The University of Hong Kong, Hong KongMichele J Anderson - The University of Hong Kong, Hong KongYing-Chi Lin - The University of Hong Kong, Hong KongAlex E Grill - The University of Hong Kong, Hong KongJayanth Panyam - The University of Hong Kong, Hong KongPeter J Southern - The University of Hong Kong, Hong KongPatrick M Schlievert - The University of Hong Kong, Hong KongMarnie L Peterson - The University of Hong Kong, Hong Kong
- Resource Type
- Journal article
- Publication Details
- PloS one, Vol.7(3), pp.e32813-e32813
- DOI
- 10.1371/journal.pone.0032813
- PMID
- 22431984
- PMCID
- PMC3303796
- NLM abbreviation
- PLoS One
- ISSN
- 1932-6203
- eISSN
- 1932-6203
- Publisher
- Public Library of Science; San Francisco, USA
- Alternative title
- Curcumin Stops Staphylococcal Toxic Shock Syndrome
- Language
- English
- Date published
- 03/14/2012
- Academic Unit
- Microbiology and Immunology; Internal Medicine
- Record Identifier
- 9984001216402771
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