Gram negative bacteria utilize N-acylated homoserine lactones to coordinate expression of virulence in response to the density of the surrounding bacterial population in a process termed quorum sensing. By interfering with this communication and thereby disrupting virulence expression, quorum sensing inhibitors are...

Anibiotic mycotoxin produced by various strains of Penicillium and Aspergillus. It has been found in corn and tabacco. Induces DNA single-strand breaks.

Description: Penicillic acid, a polyketide mycotoxin, synthesized by various species of Aspergillus and Penicillium, acts as an inhibitor of Fas ligand-induced apoptosis by impeding self-processing of caspase-8. Additionally, in vitro studies have shown that Penicillic acid displays cytotoxic properties in rat...