Journal
MOLECULAR CELL
Volume 54, Issue 2, Pages 321-328Publisher
CELL PRESS
DOI: 10.1016/j.molcel.2014.03.010
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Funding
- National Institutes of Health (NIAID) [1F32AI098384, R01AI083359]
- National Institutes of Health (NIGMS) [R01GM100486]
- Welch Foundation [I-1704]
- Burroughs Wellcome Fund
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The innate immune system has evolved under selective pressure since the radiation of multicellular life approximately 600 million years ago. Because of this long history, innate immune mechanisms found in modern eukaryotic organisms today are highly complex but yet built from common molecular strategies. It is now clear that evolution has selected a conserved set of antimicrobial peptides as well as pattern-recognition receptors (PRRs) that initiate cellular-based signals as a first line of defense against invading pathogens. Conversely, microbial pathogens employ their own strategies in order to evade, inhibit, or otherwise manipulate the innate immune response. Here, we discuss recent discoveries that have changed our view of immune modulatory mechanisms employed by bacterial pathogens, focusing specifically on the initial sites of microbial recognition and extending to host cellular signal transduction, proinflammatory cytokine production, and alteration of protein trafficking and secretion.
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