Defense peptides secreted by helminth pathogens: antimicrobial and/or immunomodulator molecules?

Host defense peptides (HDPs) are an evolutionarily conserved component of the innate immune response found in all living species. They possess antimicrobial activities against a broad range of organisms including bacteria, fungi, eukaryotic parasites and viruses. HDPs also have the ability to enhanc...

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Main Authors: Sophie eCotton, Sheila eDonnelly, Mark W. Robinson, John P. Dalton, Karine eThivierge
Format: Article
Language:English
Published: Frontiers Media S.A. 2012-08-01
Series:Frontiers in Immunology
Subjects:
Online Access:http://journal.frontiersin.org/Journal/10.3389/fimmu.2012.00269/full
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author Sophie eCotton
Sheila eDonnelly
Mark W. Robinson
Mark W. Robinson
John P. Dalton
Karine eThivierge
Karine eThivierge
author_facet Sophie eCotton
Sheila eDonnelly
Mark W. Robinson
Mark W. Robinson
John P. Dalton
Karine eThivierge
Karine eThivierge
author_sort Sophie eCotton
collection DOAJ
description Host defense peptides (HDPs) are an evolutionarily conserved component of the innate immune response found in all living species. They possess antimicrobial activities against a broad range of organisms including bacteria, fungi, eukaryotic parasites and viruses. HDPs also have the ability to enhance immune responses by acting as immunomodulators. We discovered a new family of HDPs derived from pathogenic helminthes (worms) that cause enormous disease in animals and humans worldwide. The discovery of these peptides was based on their similar biochemical and functional characteristics to the human defense peptide LL-37. We propose that these new peptides modulate the immune response via molecular mimicry of mammalian HDPs thus providing a mechanism behind the anti-inflammatory properties of helminth infections.
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spelling doaj.art-5fa6aaf1e66b491fbe96d0cbe9c389032022-12-21T19:53:44ZengFrontiers Media S.A.Frontiers in Immunology1664-32242012-08-01310.3389/fimmu.2012.0026931980Defense peptides secreted by helminth pathogens: antimicrobial and/or immunomodulator molecules?Sophie eCotton0Sheila eDonnelly1Mark W. Robinson2Mark W. Robinson3John P. Dalton4Karine eThivierge5Karine eThivierge6McGill UniversityUniversity of Technology Sydney (UTS)University of Technology Sydney (UTS)Queen's University BelfastMcGill UniversityMcGill UniversityInstitut national de santé publique du QuébecHost defense peptides (HDPs) are an evolutionarily conserved component of the innate immune response found in all living species. They possess antimicrobial activities against a broad range of organisms including bacteria, fungi, eukaryotic parasites and viruses. HDPs also have the ability to enhance immune responses by acting as immunomodulators. We discovered a new family of HDPs derived from pathogenic helminthes (worms) that cause enormous disease in animals and humans worldwide. The discovery of these peptides was based on their similar biochemical and functional characteristics to the human defense peptide LL-37. We propose that these new peptides modulate the immune response via molecular mimicry of mammalian HDPs thus providing a mechanism behind the anti-inflammatory properties of helminth infections.http://journal.frontiersin.org/Journal/10.3389/fimmu.2012.00269/fullHelminthsImmunomodulationParasitesInnate immune systemantimicrobial peptidesDefense peptides
spellingShingle Sophie eCotton
Sheila eDonnelly
Mark W. Robinson
Mark W. Robinson
John P. Dalton
Karine eThivierge
Karine eThivierge
Defense peptides secreted by helminth pathogens: antimicrobial and/or immunomodulator molecules?
Frontiers in Immunology
Helminths
Immunomodulation
Parasites
Innate immune system
antimicrobial peptides
Defense peptides
title Defense peptides secreted by helminth pathogens: antimicrobial and/or immunomodulator molecules?
title_full Defense peptides secreted by helminth pathogens: antimicrobial and/or immunomodulator molecules?
title_fullStr Defense peptides secreted by helminth pathogens: antimicrobial and/or immunomodulator molecules?
title_full_unstemmed Defense peptides secreted by helminth pathogens: antimicrobial and/or immunomodulator molecules?
title_short Defense peptides secreted by helminth pathogens: antimicrobial and/or immunomodulator molecules?
title_sort defense peptides secreted by helminth pathogens antimicrobial and or immunomodulator molecules
topic Helminths
Immunomodulation
Parasites
Innate immune system
antimicrobial peptides
Defense peptides
url http://journal.frontiersin.org/Journal/10.3389/fimmu.2012.00269/full
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