title: [Significance of Pseudomonas aeruginosa virulence factors in acute and chronic Pseudomonas aeruginosa infections].
abstract: The virulence of Pseudomonas aeruginosa is multifactorial and caused by several extracellular enzymes and other substances. The importance of these virulence factors for the pathogenesis of human P. aeruginosa infections is dependent on the type of infection. For acute, systemic infections in immunocompromised patients, exotoxin A, alkaline protease and elastase are essential virulence factors. In localized infections (e.g., cystic fibrosis) they seem to be of minor importance, since they are neutralized by specific antibodies in immune complexes, and in the case of exotoxin A cleavage by proteinases from polymorphonuclear leukocytes occurs. The rhamnolipid of P. aeruginosa which has been detected in sputa of patients with cystic fibrosis evades the host's immune response and has to be regarded as a potential virulence factor together with the phenazine pigments, also in chronic P. aeruginosa infections.
mesh_terms: D036002:ADP Ribose Transferases; D001427:Bacterial Toxins; D010450:Endopeptidases / Q000378:metabolism; D005098:Exotoxins / Q000378:metabolism; D006017:Glycolipids / Q000378:metabolism; D006801:Humans; D011552:Pseudomonas Infections / Q000382:microbiology*; D011550:Pseudomonas aeruginosa / Q000472:pathogenicity; D012210:Rhamnose / Q000378:metabolism; D014774:Virulence; D037521:Virulence Factors; D000097668:Pseudomonas aeruginosa Exotoxin A
chemical_list: D036002:ADP Ribose Transferases; D001427:Bacterial Toxins; D010450:Endopeptidases; D005098:Exotoxins; D006017:Glycolipids; D012210:Rhamnose; D037521:Virulence Factors; D000097668:Pseudomonas aeruginosa Exotoxin A; C051310:rhamnolipid hemolysin, Pseudomonas aeruginosa
vernacular_title: Die Bedeutung der Virulenzfaktoren von Pseudomonas aeruginosa für akute und chronische Pseudomonas aeruginosa-Infektionen.