Plasmodium berghei: plasmodium perforin-like protein 5 is required for mosquito midgut invasion in Anopheles stephensi.

During its life cycle the malarial parasite Plasmodium forms three invasive stages which have to invade different and specific cells for replication to ensue. Invasion is vital to parasite survival and consequently proteins responsible for invasion are considered to be candidate vaccine/drug targets...

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Principais autores: Ecker, A, Pinto, S, Baker, K, Kafatos, F, Sinden, R
Formato: Journal article
Idioma:English
Publicado em: 2007
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author Ecker, A
Pinto, S
Baker, K
Kafatos, F
Sinden, R
author_facet Ecker, A
Pinto, S
Baker, K
Kafatos, F
Sinden, R
author_sort Ecker, A
collection OXFORD
description During its life cycle the malarial parasite Plasmodium forms three invasive stages which have to invade different and specific cells for replication to ensue. Invasion is vital to parasite survival and consequently proteins responsible for invasion are considered to be candidate vaccine/drug targets. Plasmodium perforin-like proteins (PPLPs) have been implicated in invasion because they contain a predicted pore-forming domain. Ookinetes express three PPLPs, and one of them (PPLP3) has previously been shown to be essential for mosquito midgut invasion. In this study we show through phenotypic analysis of loss-of-function mutants that PPLP5 is equally essential for mosquito infection. Deltapplp5 ookinetes cannot invade midgut epithelial cells, but subsequent parasite development is rescued if the midgut is bypassed by injection of ookinetes into the hemocoel. The indistinguishable phenotypes of Deltapplp5 and Deltapplp3 ookinetes strongly suggest that these two proteins contribute to a common process.
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spelling oxford-uuid:e99c05aa-a6ca-4dd5-a86b-d12d8da8c6e42022-03-27T10:55:31ZPlasmodium berghei: plasmodium perforin-like protein 5 is required for mosquito midgut invasion in Anopheles stephensi.Journal articlehttp://purl.org/coar/resource_type/c_dcae04bcuuid:e99c05aa-a6ca-4dd5-a86b-d12d8da8c6e4EnglishSymplectic Elements at Oxford2007Ecker, APinto, SBaker, KKafatos, FSinden, RDuring its life cycle the malarial parasite Plasmodium forms three invasive stages which have to invade different and specific cells for replication to ensue. Invasion is vital to parasite survival and consequently proteins responsible for invasion are considered to be candidate vaccine/drug targets. Plasmodium perforin-like proteins (PPLPs) have been implicated in invasion because they contain a predicted pore-forming domain. Ookinetes express three PPLPs, and one of them (PPLP3) has previously been shown to be essential for mosquito midgut invasion. In this study we show through phenotypic analysis of loss-of-function mutants that PPLP5 is equally essential for mosquito infection. Deltapplp5 ookinetes cannot invade midgut epithelial cells, but subsequent parasite development is rescued if the midgut is bypassed by injection of ookinetes into the hemocoel. The indistinguishable phenotypes of Deltapplp5 and Deltapplp3 ookinetes strongly suggest that these two proteins contribute to a common process.
spellingShingle Ecker, A
Pinto, S
Baker, K
Kafatos, F
Sinden, R
Plasmodium berghei: plasmodium perforin-like protein 5 is required for mosquito midgut invasion in Anopheles stephensi.
title Plasmodium berghei: plasmodium perforin-like protein 5 is required for mosquito midgut invasion in Anopheles stephensi.
title_full Plasmodium berghei: plasmodium perforin-like protein 5 is required for mosquito midgut invasion in Anopheles stephensi.
title_fullStr Plasmodium berghei: plasmodium perforin-like protein 5 is required for mosquito midgut invasion in Anopheles stephensi.
title_full_unstemmed Plasmodium berghei: plasmodium perforin-like protein 5 is required for mosquito midgut invasion in Anopheles stephensi.
title_short Plasmodium berghei: plasmodium perforin-like protein 5 is required for mosquito midgut invasion in Anopheles stephensi.
title_sort plasmodium berghei plasmodium perforin like protein 5 is required for mosquito midgut invasion in anopheles stephensi
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AT pintos plasmodiumbergheiplasmodiumperforinlikeprotein5isrequiredformosquitomidgutinvasioninanophelesstephensi
AT bakerk plasmodiumbergheiplasmodiumperforinlikeprotein5isrequiredformosquitomidgutinvasioninanophelesstephensi
AT kafatosf plasmodiumbergheiplasmodiumperforinlikeprotein5isrequiredformosquitomidgutinvasioninanophelesstephensi
AT sindenr plasmodiumbergheiplasmodiumperforinlikeprotein5isrequiredformosquitomidgutinvasioninanophelesstephensi