Helminth-induced immunoregulation: an update

Helminth infections, which have been reduced or eradicated from most developed countries, produce important changes in the immune system. Especially, when chronic and intense, they cause immunosuppression. Although parasites can directly impair health, they may also protect from chronic inflammatory...

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Main Author: Zakzuk, Josefina
Format: Article
Language:Spanish
Published: Universidad de Antioquia 2016-04-01
Series:Iatreia
Subjects:
Online Access:http://www.iatreia.udea.edu.co/index.php/iatreia/article/view/21989/20779390
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author Zakzuk, Josefina
author_facet Zakzuk, Josefina
author_sort Zakzuk, Josefina
collection DOAJ
description Helminth infections, which have been reduced or eradicated from most developed countries, produce important changes in the immune system. Especially, when chronic and intense, they cause immunosuppression. Although parasites can directly impair health, they may also protect from chronic inflammatory diseases due to induction of immunoregulatory mechanisms, such as regulatory-B and -T cell development which inhibit proliferation of auto-reactive and allergen-specific clones. Innate immune system modulation has also been recognized, highlighting that, besides increasing the number of cells involved in parasite clearance, they also may use them as a target for evasion mechanisms. Some cells, important in the defense against bacteria and other pathogens, also respond to helminths, but with a genetic program highly different from the type-1 classical profile. Parallel to immunosuppression, helminthiasis induce strong type 2 responses in the host; thus, it becomes a concern the situation of some human populations living in places where they are partially controlled, then, slight infection/re-infection cycles prevail and immunosuppression is rather not observed. Ascaris lumbricoides, the most common helminthiasis in the planet, is one of the least studied in terms of immunoregulation and also the most frequently associated to asthma and other allergic conditions.
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spelling doaj.art-8f654fe17c66438f94523827876a8ebd2022-12-21T22:01:45ZspaUniversidad de AntioquiaIatreia0121-07932011-79652016-04-0129218219310.17533/udea.iatreia.v29n2a07Helminth-induced immunoregulation: an updateZakzuk, Josefina0Grupo de Alergología Experimental e Inmunogenética, Instituto de Investigaciones Inmunológicas Universidad de Cartagena. ColombiaHelminth infections, which have been reduced or eradicated from most developed countries, produce important changes in the immune system. Especially, when chronic and intense, they cause immunosuppression. Although parasites can directly impair health, they may also protect from chronic inflammatory diseases due to induction of immunoregulatory mechanisms, such as regulatory-B and -T cell development which inhibit proliferation of auto-reactive and allergen-specific clones. Innate immune system modulation has also been recognized, highlighting that, besides increasing the number of cells involved in parasite clearance, they also may use them as a target for evasion mechanisms. Some cells, important in the defense against bacteria and other pathogens, also respond to helminths, but with a genetic program highly different from the type-1 classical profile. Parallel to immunosuppression, helminthiasis induce strong type 2 responses in the host; thus, it becomes a concern the situation of some human populations living in places where they are partially controlled, then, slight infection/re-infection cycles prevail and immunosuppression is rather not observed. Ascaris lumbricoides, the most common helminthiasis in the planet, is one of the least studied in terms of immunoregulation and also the most frequently associated to asthma and other allergic conditions.http://www.iatreia.udea.edu.co/index.php/iatreia/article/view/21989/20779390Ascaris LumbricoidesHelminthiasisImmunomodulationImmunosuppression
spellingShingle Zakzuk, Josefina
Helminth-induced immunoregulation: an update
Iatreia
Ascaris Lumbricoides
Helminthiasis
Immunomodulation
Immunosuppression
title Helminth-induced immunoregulation: an update
title_full Helminth-induced immunoregulation: an update
title_fullStr Helminth-induced immunoregulation: an update
title_full_unstemmed Helminth-induced immunoregulation: an update
title_short Helminth-induced immunoregulation: an update
title_sort helminth induced immunoregulation an update
topic Ascaris Lumbricoides
Helminthiasis
Immunomodulation
Immunosuppression
url http://www.iatreia.udea.edu.co/index.php/iatreia/article/view/21989/20779390
work_keys_str_mv AT zakzukjosefina helminthinducedimmunoregulationanupdate