Anthrax is a severe bacterial infection that occurs when Bacillus anthracis spores gain access into the body and germinate in macrophages, causing septicemia and toxemia. Anthrax toxin is a binary A-B toxin composed of protective antigen (PA), lethal factor (LF), and edema factor (EF). PA mediates the entry of either LFor EF into the cytosol of host cells. LF is a zinc metalloprotease that inactivates mitogen-activated protein kinase kinase inducing cell death, and EF is an adenylyl cyclase impairing host defences. Inhibitors targeting di¡erent steps of toxin activity have recently been developed. Anthrax toxin has also been exploited as a therapeutic agent against cancer.

Anthrax toxin: a tripartite lethal combination

SPALLAROSSA, ANDREA;
2002

Abstract

Anthrax is a severe bacterial infection that occurs when Bacillus anthracis spores gain access into the body and germinate in macrophages, causing septicemia and toxemia. Anthrax toxin is a binary A-B toxin composed of protective antigen (PA), lethal factor (LF), and edema factor (EF). PA mediates the entry of either LFor EF into the cytosol of host cells. LF is a zinc metalloprotease that inactivates mitogen-activated protein kinase kinase inducing cell death, and EF is an adenylyl cyclase impairing host defences. Inhibitors targeting di¡erent steps of toxin activity have recently been developed. Anthrax toxin has also been exploited as a therapeutic agent against cancer.
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Utilizza questo identificativo per citare o creare un link a questo documento: http://hdl.handle.net/11567/214702
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