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https://www.arca.fiocruz.br/handle/icict/5896
UPTAKE OF MACROMOLECULES BY CERCARIAE DURING SKIN PENETRATION AND TRANSFORMATION TO SCHISTOSOMULA (SCHISTOSOMA MANSONI)
membrane impermeant Lucifer yellow
nephridiopore
host/parasite interface
linoleic acid
Author
Affilliation
University of Glasgow. Glasgow, Scotland. UK
University of Glasgow. Glasgow, Scotland. UK
Fundação Oswaldo Cruz. Centro de Pesquisas René Rachou. Belo Horizonte, MG, Brasil
Fundação Oswaldo Cruz. Centro de Pesquisas René Rachou. Belo Horizonte, MG, Brasil
Fundação Oswaldo Cruz. Centro de Pesquisas René Rachou. Belo Horizonte, MG, Brasil
Fundação Oswaldo Cruz. Centro de Pesquisas René Rachou. Belo Horizonte, MG, Brasil
Queen’s University Belfast. Belfast, Northern Ireland, UK
Fundação Oswaldo Cruz. Centro de Pesquisas René Rachou. Belo Horizonte, MG, Brasil
University of Glasgow. Glasgow, Scotland. UK
Fundação Oswaldo Cruz. Centro de Pesquisas René Rachou. Belo Horizonte, MG, Brasil
Fundação Oswaldo Cruz. Centro de Pesquisas René Rachou. Belo Horizonte, MG, Brasil
Fundação Oswaldo Cruz. Centro de Pesquisas René Rachou. Belo Horizonte, MG, Brasil
Fundação Oswaldo Cruz. Centro de Pesquisas René Rachou. Belo Horizonte, MG, Brasil
Queen’s University Belfast. Belfast, Northern Ireland, UK
Fundação Oswaldo Cruz. Centro de Pesquisas René Rachou. Belo Horizonte, MG, Brasil
Abstract
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 schisto-somulum 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
Keywords
Schistosoma mansonimembrane impermeant Lucifer yellow
nephridiopore
host/parasite interface
linoleic acid
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