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    The helminth product ES-62 protects against septic shock via Toll-like receptor 4-dependent autophagosomal degradation of the adaptor MyD88

    Access Status
    Fulltext not available
    Authors
    Puneet, P.
    McGrath, M.
    Tay, H.
    Al-Riyami, L.
    Rzepecka, J.
    Moochhala, S.
    Pervaiz, Shazib
    Harnett, M.
    Harnett, W.
    Melendez, A.
    Date
    2011
    Type
    Journal Article
    
    Metadata
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    Citation
    Puneet, P. and McGrath, M. and Tay, H. and Al-Riyami, L. and Rzepecka, J. and Moochhala, S. and Pervaiz, S. et al. 2011. The helminth product ES-62 protects against septic shock via Toll-like receptor 4-dependent autophagosomal degradation of the adaptor MyD88. Nature Immunology. 12 (4): pp. 344-353.
    Source Title
    Nature Immunology
    DOI
    10.1038/ni.2004
    ISSN
    1529-2908
    School
    School of Biomedical Sciences
    URI
    http://hdl.handle.net/20.500.11937/51243
    Collection
    • Curtin Research Publications
    Abstract

    Sepsis is one of the most challenging health problems worldwide. Here we found that phagocytes from patients with sepsis had considerable upregulation of Toll-like receptor 4 (TLR4) and TLR2; however, shock-inducing inflammatory responses mediated by these TLRs were inhibited by ES-62, an immunomodulator secreted by the filarial nematode Acanthocheilonema viteae. ES-62 subverted TLR4 signaling to block TLR2- and TLR4-driven inflammatory responses via autophagosome-mediated downregulation of the TLR adaptor-transducer MyD88. In vivo, ES-62 protected mice against endotoxic and polymicrobial septic shock by TLR4-mediated induction of autophagy and was protective even when administered after the induction of sepsis. Given that the treatments for septic shock at present are inadequate, the autophagy-dependent mechanism of action by ES-62 might form the basis for urgently needed therapeutic intervention against this life-threatening condition. © 2011 Nature America, Inc. All rights reserved.

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