Abstract:
:Accumulating evidences have assigned a central role to parasite-derived proteins in immunomodulation. Here, we report on the proteomic identification and characterization of immunomodulatory excretory-secretory (ES) products from the metacestode larva (tetrathyridium) of the tapeworm Mesocestoides corti (syn. M. vogae). We demonstrate that ES products but not larval homogenates inhibit the stimuli-driven release of the pro-inflammatory, Th1-inducing cytokine IL-12p70 by murine bone marrow-derived dendritic cells (BMDCs). Within the ES fraction, we biochemically narrowed down the immunosuppressive activity to glycoproteins since active components were lipid-free, but sensitive to heat- and carbohydrate-treatment. Finally, using bioassay-guided chromatographic analyses assisted by comparative proteomics of active and inactive fractions of the ES products, we defined a comprehensive list of candidate proteins released by M. corti tetrathyridia as potential suppressors of DC functions. Our study provides a comprehensive library of somatic and ES products and highlight some candidate parasite factors that might drive the subversion of DC functions to facilitate the persistence of M. corti tetrathyridia in their hosts.
journal_name
PLoS Negl Trop Disjournal_title
PLoS neglected tropical diseasesauthors
Vendelova E,Camargo de Lima J,Lorenzatto KR,Monteiro KM,Mueller T,Veepaschit J,Grimm C,Brehm K,Hrčková G,Lutz MB,Ferreira HB,Nono JKdoi
10.1371/journal.pntd.0005061subject
Has Abstractpub_date
2016-10-13 00:00:00pages
e0005061issue
10eissn
1935-2727issn
1935-2735pii
PNTD-D-16-00900journal_volume
10pub_type
杂志文章abstract::Parasitic infections are a major source of human suffering, mortality, and economic loss, but drug development for these diseases has been stymied by the significant expense involved in bringing a drug though clinical trials and to market. Identification of single compounds active against multiple parasitic pathogens ...
journal_title:PLoS neglected tropical diseases
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journal_title:PLoS neglected tropical diseases
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pub_type: 临床试验,杂志文章,多中心研究
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journal_title:PLoS neglected tropical diseases
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journal_title:PLoS neglected tropical diseases
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journal_title:PLoS neglected tropical diseases
pub_type: 杂志文章
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journal_title:PLoS neglected tropical diseases
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