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ERM Proteins Play Distinct Roles in Cell Invasion by Extracellular Amastigotes of Trypanosoma cruzi
Indexado
WoS WOS:000415793400001
Scopus SCOPUS_ID:85034628249
DOI 10.3389/FMICB.2017.02230
Año 2017
Tipo artículo de investigación

Citas Totales

Autores Afiliación Chile

Instituciones Chile

% Participación
Internacional

Autores
Afiliación Extranjera

Instituciones
Extranjeras


Abstract



The protozoan parasite Trypanosoma cruzi is the causative agent of Chagas' disease. In mammalian hosts, T. cruzi alternates between trypomastigote and amastigote forms. Additionally, trypomastigotes can differentiate into amastigotes in the extracellular environment generating infective extracellular amastigotes (EAs). Ezrin-radixin-moesin (ERM) are key proteins linking plasma membrane to actin filaments, the major host cell component responsible for EA internalization. Our results revealed that depletion of host ezrin and radixin but not moesin inhibited EAs invasion in HeLa cells. ERM are recruited and colocalize with F-actin at EA invasion sites as shown by confocal microscopy. Invasion assays performed with cells overexpressing ERM showed increased EAs invasion in ezrin and radixin but not moesin overexpressing cells. Finally, time-lapse experiments have shown altered actin dynamics leading to delayed EA internalization in ezrin and radixin depleted cells when compared to control or moesin depleted cells. Altogether, these findings show distinct roles of ERM during EAs invasion, possibly regulating F-actin dynamics and plasma membrane interplay.

Revista



Revista ISSN
Frontiers In Microbiology 1664-302X

Métricas Externas



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Disciplinas de Investigación



WOS
Microbiology
Scopus
Sin Disciplinas
SciELO
Sin Disciplinas

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Publicaciones WoS (Ediciones: ISSHP, ISTP, AHCI, SSCI, SCI), Scopus, SciELO Chile.

Colaboración Institucional



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Autores - Afiliación



Ord. Autor Género Institución - País
1 Ferreira, Eden R. Mujer Univ Fed Sao Paulo - Brasil
Universidade Federal de São Paulo - Brasil
2 Bonfim-Melo, Alexis Hombre Univ Fed Sao Paulo - Brasil
Universidade Federal de São Paulo - Brasil
3 Cordero, Esteban Hombre Univ Fed Sao Paulo - Brasil
Universidad Mayor - Chile
Universidade Federal de São Paulo - Brasil
4 Mortara, Renato Arruda Hombre Univ Fed Sao Paulo - Brasil
Universidade Federal de São Paulo - Brasil

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Financiamiento



Fuente
CAPES
FAPESP
Conselho Nacional de Desenvolvimento Científico e Tecnológico
Fundação de Amparo à Pesquisa do Estado de São Paulo
Coordenação de Aperfeiçoamento de Pessoal de Nível Superior
University of Virginia
National Cancer Institute
CNPq fellowship

Muestra la fuente de financiamiento declarada en la publicación.

Agradecimientos



Agradecimiento
The authors wish to thank the financial support of FAPESP (2011/51475-3; 2012/25282-6) and CAPES. RM is the recipient of a CNPq fellowship (302068/2016-3). Authors also would like to thank Drs. Chand Khanna (National Cancer Institute) and Kodi Ravichandran (University of Virginia) for plasmid constructs and Dr. Nobuko Yoshida for critically reading the manuscript.
The authors wish to thank the financial support of FAPESP (2011/51475-3; 2012/25282-6) and CAPES. RM is the recipient of a CNPq fellowship (302068/2016-3). Authors also would like to thank Drs. Chand Khanna (National Cancer Institute) and Kodi Ravichandran (University of Virginia) for plasmid constructs and Dr. Nobuko Yoshida for critically reading the manuscript.

Muestra la fuente de financiamiento declarada en la publicación.