[HTML][HTML] Characterization of hydrogen peroxide production by Duox in bronchial epithelial cells exposed to Pseudomonas aeruginosa
B Rada, TL Leto - FEBS letters, 2010 - Elsevier
B Rada, TL Leto
FEBS letters, 2010•ElsevierHydrogen peroxide production by the NADPH oxidase Duox1 occurs during activation of
respiratory epithelial cells stimulated by purified bacterial ligands, such as
lipopolysaccharide. Here, we characterize Duox activation using intact bacterial cells of
several airway pathogens. We found that only Pseudomonas aeruginosa, not Burkholderia
cepacia or Staphylococcus aureus, triggers H2O2 production in bronchial epithelial cells in
a calcium-dependent but predominantly ATP-independent manner. Moreover, by comparing …
respiratory epithelial cells stimulated by purified bacterial ligands, such as
lipopolysaccharide. Here, we characterize Duox activation using intact bacterial cells of
several airway pathogens. We found that only Pseudomonas aeruginosa, not Burkholderia
cepacia or Staphylococcus aureus, triggers H2O2 production in bronchial epithelial cells in
a calcium-dependent but predominantly ATP-independent manner. Moreover, by comparing …
Hydrogen peroxide production by the NADPH oxidase Duox1 occurs during activation of respiratory epithelial cells stimulated by purified bacterial ligands, such as lipopolysaccharide. Here, we characterize Duox activation using intact bacterial cells of several airway pathogens. We found that only Pseudomonas aeruginosa, not Burkholderia cepacia or Staphylococcus aureus, triggers H2O2 production in bronchial epithelial cells in a calcium-dependent but predominantly ATP-independent manner. Moreover, by comparing mutant Pseudomonas strains, we identify several virulence factors that participate in Duox activation, including the type-three secretion system. These data provide insight on Duox activation by mechanisms unique to P. aeruginosa.
Elsevier
