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| DOI | 10.3389/FCIMB.2024.1437339 | ||
| Año | 2024 | ||
| Tipo |
Citas Totales
Autores Afiliación Chile
Instituciones Chile
% Participación
Internacional
Autores
Afiliación Extranjera
Instituciones
Extranjeras
Trypanosoma cruzi, the causative agent of Chagas disease, can be congenitally transmitted by crossing the placental barrier. This study investigates the role of T. cruzi-derived exovesicles (TcEVs) in facilitating parasite infection and the consequent tissue damage and apoptotic cell death in human placental explants (HPEs). Our findings demonstrate that TcEVs significantly enhance the parasite load and induce tissue damage in HPEs, both in the presence and absence of the parasite. Through histopathological and immunohistochemical analyses, we show that TcEVs alone can disrupt the placental barrier, affecting the basal membrane and villous stroma. The induction of apoptotic cell death is evidenced by DNA fragmentation, caspase 8 and 3, and p18 fragment immunodetection. This damage is exacerbated when TcEVs are combined with T. cruzi infection. These findings suggest that TcEVs play a critical role in the pathogenesis of congenital Chagas disease by disrupting the placental barrier and facilitating parasite transmission to the fetus. This study provides new insights into the mechanisms of transplacental transmission of T. cruzi and highlights the potential of targeting TcEVs as a therapeutic strategy against congenital Chagas disease.
| Ord. | Autor | Género | Institución - País |
|---|---|---|---|
| 1 | Fernández-Moya, Alejandro | - |
Universidad de Chile - Chile
Universidad de Las Américas Chile - Chile |
| 2 | Oviedo, Bielca | - |
Universidad de Chile - Chile
|
| 3 | LIEMPI-MANQUEL, ANA ISABEL | Mujer |
Universidad de Chile - Chile
|
| 4 | Guerrero-Muñoz, Jesús | - |
Universidad de Chile - Chile
|
| 5 | Rivas, Cristian | - |
Universidad de Chile - Chile
|
| 6 | Arregui, Rocío | - |
Universidad de Chile - Chile
|
| 7 | Araneda, Sebastián | Hombre |
Universidad de Chile - Chile
Universidad San Sebastián - Chile |
| 8 | Cornet-Gomez, Alberto | - |
Universidad de Granada - España
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| 9 | Maya, Juan Diego | - |
Universidad de Chile - Chile
|
| 10 | MULLER-SOBARZO, MARIOLY ANNELIESE | - |
Universidad de Chile - Chile
|
| 11 | Osuna, Antonio | Hombre |
Universidad de Granada - España
|
| 12 | Castillo, Christian | Hombre |
Universidad de Chile - Chile
|
| 13 | KEMMERLING-WEIS, ULRIKE | Mujer |
Universidad de Chile - Chile
|
| Agradecimiento |
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| The author(s) declare financial support was received for the research, authorship, and/or publication of this article. UK, JM, and CC received grants from the National Fund for Scientific and Technological Development (FONDECYT; grant numbers 1220105, 1210159, and 11220310, respectively). AF-M is supported by a PhD scholarship from the same agency (Beca ANID 21201823). |