• Curr Opin Pharmacol · Aug 2011

    Review

    The role of TLRs in neutrophil activation.

    • Lynne R Prince, Moira K Whyte, Ian Sabroe, and Lisa C Parker.
    • Department of Infection and Immunity, University of Sheffield, Sheffield, United Kingdom.
    • Curr Opin Pharmacol. 2011 Aug 1;11(4):397-403.

    AbstractNeutrophils are key innate immune effector cells that are rapidly recruited to sites of infection and inflammation to provide early defence against invading microorganisms. This function is facilitated by the expression of Toll-like receptor (TLR) family members by neutrophils, allowing the recognition of an extensive repertoire of pathogen-associated molecular patterns (PAMPs) and thus triggering the response to invading pathogens. TLR activation leads to important cellular processes including reactive oxygen species (ROS) generation, cytokine production and increased survival, all of which can contribute to the pathogenesis of chronic inflammation when signalling becomes dysregulated. In turn, inflammation and tissue injury results in the release of endogenous TLR ligands, known as damage-associated molecular patterns (DAMPs), which are a rapidly growing class of potent inflammatory stimuli. DAMPs act in an autocrine manner, alerting the host of damage, but can also amplify inflammation leading to further tissue damage. This review highlights recent literature on neutrophil TLR function and regulation during disease, and provides an overview of the recently emerging area of neutrophil responses to DAMPs.Copyright © 2011 Elsevier Ltd. All rights reserved.

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