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Despite decades of research, efficient therapies for most enteropathogenic bacteria are still lacking. In this review, we focus on Salmonella enterica Typhimurium (S. Typhimurium), a frequent cause of acute, self-limiting food-borne diarrhea and a model that has revealed key principles of enteropathogen infection. We review the steps of gut infection and the mucosal innate-immune defenses limiting...
Gene inactivation by transposon insertion or allelic exchange is a powerful approach to probe gene function. Unfortunately, many microbes, including Chlamydia, are not amenable to routine molecular genetic manipulations. Here we describe an arrayed library of chemically induced mutants of the genetically intransigent pathogen Chlamydia trachomatis, in which all mutations have been identified by whole-genome...
A potential approach to activate tumor-specific T cells is to use live bacterial vectors to deliver appropriate antigens in a highly immunostimulatory context. We constructed a recombinant strain of Listeria monocytogenes (rLM) expressing murine tyrosinase-related protein-2 (TRP-2), a nonmutated melanocyte-derived differentiation antigen highly expressed in melanomas. Immunization of C57Bl/6 mice...
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