Sci. STKE, 8 November 2005
IMMUNOLOGY A Gut Oxidase Reaction
The mucosal surfaces of the body are constantly exposed to microorganisms and have evolved a variety of protective innate immune mechanisms, including the generation of antimicrobial peptides throughout the animal kingdom. Another hallmark of the innate immune response is the generation of microbicidal reactive oxygen species (ROS) by phagocytes. Ha et al. observe that gut mucosal epithelial cells of Drosophila expressed dual oxidase (dDuox) upon bacterial infection. Flies in which dDuox expression had been silenced were significantly more susceptible to infection, and protection could be restored upon dDuox reexpression. Similar mucosal ROS production mechanisms may be exploited in host defense across different species.
Citation: A Gut Oxidase Reaction. Sci. STKE 2005, tw399 (2005).
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