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Fruit flies show how salmonella escapes immune defenses
Date:4/16/2008

orm of the salmonella lacking the AvrA protein caused an enhanced inflammatory immune response and markedly more cell death in the mouse intestine.

"Using drosophila genetics, we found a biochemical crossroad required for both immune and apoptotic pathways," says Neish. "The AvrA protein is able to key in on the exact site of the biochemical network and allow it to suppress both the inflammatory response and the apoptotic immune response at the same time. We suspect that other pathogens may target the same biochemical network to avoid elimination. These immune pathways in drosophila have been preserved across evolution and are remarkably similar to human immune pathways. This is such a powerful research system that any bacterial or viral genes would be amenable to study through this approach."


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Contact: Sarah Goodwin
sgoodwi@emory.edu
404-727-3366
Emory University
Source:Eurekalert

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