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Pseudomonas aeruginosa (P. aeruginosa) is a common pathogen affecting immunocompromised patients with acute diseases such as pneumonia and vasculitis or chronic diseases such as cystic fibrosis. It produces several phenazine toxic metabolites, the most predominant of which is a blue pigment, pyocyanin. Pyocyanin, which can reach concentrations of 100 µM in cystic fibrosis patients infected with P. aeruginosa, activates the aryl hydrocarbon receptor with a Ki value of 5.4 µM. This induces the expression of both detoxifying enzymes, resulting in pyocyanin degradation, and cytokines that facilitate the clearance of bacteria. Pyocyanin has been shown to accelerate neutrophil apoptosis in vitro, resulting in resolution of acute inflammation, which is beneficial for bacterial survival. It also induces a 10-fold acceleration of neutrophil apoptosis in vivo. Pyocyanin production results in reduced bacterial clearance from the lungs of immunocompromised patients. It has also been reported to induce apoptosis in human lung epithelial cells and to induce premature cellular senescence in mammalian cells. Pyocyanin undergoes nonenzymatic reduction by NADPH, which produces hydrogen peroxide and depletes intracellular glutathione levels, causing oxidative stress in susceptible cells.Formal Name: 5-methyl-1(5H)-phenazinone. CAS Number: 85-66-5. Synonyms: Sanasin, Sanazin, Pyocyanine. Molecular Formula: C13H10N2O. Formula Weight: 210.2. Purity: >98%. Formulation: (Request formulation change), A crystalline solid. Solubility: DMF: 2 mg/ml, DMSO: 5 mg/ml, Ethanol: 5 mg/ml, Ethanol:PBS (pH 7.2) (1:1): 0.5 mg/ml. lambdamax: 238, 322, 720 nm. SMILES: Cn1c2ccccc2nc2c(=O)cccc12. InChi Code: InChI=1S/C13H10N2O/c1-15-10-6-3-2-5-9(10)14-13-11(15)7-4-8-12(13)16/h2-8H,1H3. InChi Key: YNCMLFHHXWETLD-UHFFFAOYSA-N.
This website uses cookies, which are necessary for the technical operation of the website and are always set. Other cookies, which increase the usability of this website, serve for direct advertising or simplify interaction with other websites and social networks, will only be used with your consent.
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