Uptake of macromolecules by cercariae during skin penetration and transformation to schistosomula (Schistosoma mansoni)

Here, we observed the uptake of membrane-impermeant molecules by cercariae as they penetrate the skin and are transformed into schistosomula. We propose that membrane-impermeant molecules, Lucifer Yellow, Propidium iodide and Hoechst 33258 enter the parasite through both thenephridiopore and the sur...

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Main Authors: Joyce Thornhill, John Kusel, Fabricia Alvisi de Oliviera, Fabio Ribeiro, Symone Fulgêncio Lima, Paulo Marcos Zech Coelho, Paul McVeigh, Ana Carolina Alves Mattos
Format: Article
Language:English
Published: Fundação Oswaldo Cruz (FIOCRUZ) 2010-07-01
Series:Memorias do Instituto Oswaldo Cruz
Subjects:
Online Access:http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0074-02762010000400007
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author Joyce Thornhill
John Kusel
Fabricia Alvisi de Oliviera
Fabio Ribeiro
Symone Fulgêncio Lima
Paulo Marcos Zech Coelho
Paul McVeigh
Ana Carolina Alves Mattos
author_facet Joyce Thornhill
John Kusel
Fabricia Alvisi de Oliviera
Fabio Ribeiro
Symone Fulgêncio Lima
Paulo Marcos Zech Coelho
Paul McVeigh
Ana Carolina Alves Mattos
author_sort Joyce Thornhill
collection DOAJ
description Here, we observed the uptake of membrane-impermeant molecules by cercariae as they penetrate the skin and are transformed into schistosomula. We propose that membrane-impermeant molecules, Lucifer Yellow, Propidium iodide and Hoechst 33258 enter the parasite through both thenephridiopore and the surface membrane and then diffuse throughout the body of the parasite. We present a hypothesis that the internal cells of the body of the schistosomulum represent a new host-parasite interface, at which skin-derived growth factors may stimulate receptors on internal membranes during transformation of the cercariae into the schistosomulum.
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spelling doaj.art-bfd353ce25ee4aebae07518254ff07462023-08-02T08:19:33ZengFundação Oswaldo Cruz (FIOCRUZ)Memorias do Instituto Oswaldo Cruz0074-02761678-80602010-07-01105438739010.1590/S0074-02762010000400007Uptake of macromolecules by cercariae during skin penetration and transformation to schistosomula (Schistosoma mansoni)Joyce ThornhillJohn KuselFabricia Alvisi de OlivieraFabio RibeiroSymone Fulgêncio LimaPaulo Marcos Zech CoelhoPaul McVeighAna Carolina Alves MattosHere, we observed the uptake of membrane-impermeant molecules by cercariae as they penetrate the skin and are transformed into schistosomula. We propose that membrane-impermeant molecules, Lucifer Yellow, Propidium iodide and Hoechst 33258 enter the parasite through both thenephridiopore and the surface membrane and then diffuse throughout the body of the parasite. We present a hypothesis that the internal cells of the body of the schistosomulum represent a new host-parasite interface, at which skin-derived growth factors may stimulate receptors on internal membranes during transformation of the cercariae into the schistosomulum.http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0074-02762010000400007Schistosoma mansonimembrane impermeant Lucifer Yellownephridioporehostlinoleic acid
spellingShingle Joyce Thornhill
John Kusel
Fabricia Alvisi de Oliviera
Fabio Ribeiro
Symone Fulgêncio Lima
Paulo Marcos Zech Coelho
Paul McVeigh
Ana Carolina Alves Mattos
Uptake of macromolecules by cercariae during skin penetration and transformation to schistosomula (Schistosoma mansoni)
Memorias do Instituto Oswaldo Cruz
Schistosoma mansoni
membrane impermeant Lucifer Yellow
nephridiopore
host
linoleic acid
title Uptake of macromolecules by cercariae during skin penetration and transformation to schistosomula (Schistosoma mansoni)
title_full Uptake of macromolecules by cercariae during skin penetration and transformation to schistosomula (Schistosoma mansoni)
title_fullStr Uptake of macromolecules by cercariae during skin penetration and transformation to schistosomula (Schistosoma mansoni)
title_full_unstemmed Uptake of macromolecules by cercariae during skin penetration and transformation to schistosomula (Schistosoma mansoni)
title_short Uptake of macromolecules by cercariae during skin penetration and transformation to schistosomula (Schistosoma mansoni)
title_sort uptake of macromolecules by cercariae during skin penetration and transformation to schistosomula schistosoma mansoni
topic Schistosoma mansoni
membrane impermeant Lucifer Yellow
nephridiopore
host
linoleic acid
url http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0074-02762010000400007
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