Bacillus anthracis Edema Toxin Inhibits Staphylococcus aureus Enterotoxin B Effects In Vitro: a Potential Protein Therapeutic?

Author:

Krakauer Teresa1,Little Stephen F.2,Stiles Bradley G.1

Affiliation:

1. Integrated Toxicology

2. Bacteriology Divisions, U.S. Army Medical Research Institute of Infectious Diseases, Fort Detrick, Maryland 21702-5011

Abstract

ABSTRACT Various in vitro effects of staphylococcal enterotoxin B (SEB) on human peripheral blood mononuclear cells were mitigated by Bacillus anthracis edema toxin. In particular, levels of some SEB-induced cytokines (tumor necrosis factor alpha, gamma interferon) and chemokines (monocyte chemoattractant protein 1, macrophage inflammatory protein 1 alpha [MIP-1α], MIP-1β) were significantly diminished or even nonexistent, depending upon the timing of edema toxin administration. Overall, these results suggest a novel use of B. anthracis edema toxin against a bacterial superantigen.

Publisher

American Society for Microbiology

Subject

Infectious Diseases,Immunology,Microbiology,Parasitology

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