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| Indexado |
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| 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
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.
| 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 |
| 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 |
| 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. |