Report

Genome-Wide RNAi Screen for Host Factors Required for Intracellular Bacterial Infection

Science  19 Aug 2005:
Vol. 309, Issue 5738, pp. 1248-1251
DOI: 10.1126/science.1116008

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Abstract

Most studies of host-pathogen interactions have focused on pathogen-specific virulence determinants. Here, we report a genome-wide RNA interference screen to identify host factors required for intracellular bacterial pathogenesis. Using Drosophila cells and the cytosolic pathogen Listeria monocytogenes, we identified 305 double-stranded RNAs targeting a wide range of cellular functions that altered L. monocytogenes infection. Comparison to a similar screen with Mycobacterium fortuitum, a vacuolar pathogen, identified host factors that may play a general role in intracellular pathogenesis and factors that specifically affect access to the cytosol by L. monocytogenes.

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