Colección SciELO Chile

Departamento Gestión de Conocimiento, Monitoreo y Prospección
Consultas o comentarios: productividad@anid.cl
Búsqueda Publicación
Búsqueda por Tema Título, Abstract y Keywords



Plasmodium falciparum alters the trophoblastic barrier and stroma villi organization of human placental villi explants
Indexado
WoS WOS:001220783400001
Scopus SCOPUS_ID:85191752763
DOI 10.1186/S12936-024-04960-9
Año 2024
Tipo artículo de investigación

Citas Totales

Autores Afiliación Chile

Instituciones Chile

% Participación
Internacional

Autores
Afiliación Extranjera

Instituciones
Extranjeras


Abstract



Background The sequestration of Plasmodium falciparum infected erythrocytes in the placenta, and the resulting inflammatory response affects maternal and child health. Despite existing information, little is known about the direct impact of P. falciparum on the placental barrier formed by trophoblast and villous stroma. This study aimed to assess placental tissue damage caused by P. falciparum in human placental explants (HPEs). Methods HPEs from chorionic villi obtained of human term placentas (n = 9) from normal pregnancies were exposed to P. falciparum-infected erythrocytes (IE) for 24 h. HPEs were embedded in paraffin blocks and used to study tissue damage through histopathological and histochemical analysis and apoptosis using TUNEL staining. Culture supernatants were collected to measure cytokine and angiogenic factors and to determine LDH activity as a marker of cytotoxicity. A subset of archived human term placenta paraffin-embedded blocks from pregnant women with malaria were used to confirm ex vivo findings. Results Plasmodium falciparum-IE significantly damages the trophoblast layer and the villous stroma of the chorionic villi. The increased LDH activity and pathological findings such as syncytial knots, fibrin deposits, infarction, trophoblast detachment, and collagen disorganization supported these findings. The specific damage to the trophoblast and the thickening of the subjacent basal lamina were more pronounced in the ex vivo infection. In contrast, apoptosis was higher in the in vivo infection. This disparity could be attributed to the duration of exposure to the infection, which significantly varied between individuals naturally exposed over time and the 24-h exposure in the ex vivo HPE model. Conclusion Exposure to P. falciparum-IE induces a detachment of the syncytiotrophoblast, disorganization of the stroma villi, and an increase in apoptosis, alterations that may be associated with adverse results such as intrauterine growth restriction and low birth weight.

Revista



Revista ISSN
Malaria Journal 1475-2875

Métricas Externas



PlumX Altmetric Dimensions

Muestra métricas de impacto externas asociadas a la publicación. Para mayor detalle:

Disciplinas de Investigación



WOS
Infectious Diseases
Parasitology
Tropical Medicine
Scopus
Sin Disciplinas
SciELO
Sin Disciplinas

Muestra la distribución de disciplinas para esta publicación.

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

Colaboración Institucional



Muestra la distribución de colaboración, tanto nacional como extranjera, generada en esta publicación.


Autores - Afiliación



Ord. Autor Género Institución - País
1 Lopez-Guzman, Carolina - UNIV ANTIOQUIA - Colombia
Universidad de Antioquia - Colombia
2 Garcia, Ana Maria - UNIV ANTIOQUIA - Colombia
Universidad de Antioquia - Colombia
3 Ramirez, Juan Diego - UNIV ANTIOQUIA - Colombia
Universidad de Antioquia - Colombia
4 Aliaga, Trinidad Torres - Universidad de Chile - Chile
5 Fernandez-Moya, Alejandro Hombre Universidad de Chile - Chile
6 KEMMERLING-WEIS, ULRIKE Mujer Universidad de Chile - Chile
7 Vasquez, Ana Maria - UNIV ANTIOQUIA - Colombia
Universidad de Antioquia - Colombia

Muestra la afiliación y género (detectado) para los co-autores de la publicación.

Financiamiento



Fuente
Minciencias (Ministerio de Ciencia Tecnologia e Innovacion), Colombia
Clínica El Rosario, Poblado and Central branch

Muestra la fuente de financiamiento declarada en la publicación.

Agradecimientos



Agradecimiento
This study was supported by Minciencias (Ministerio de Ciencia Tecnologia e Innovacion), Colombia, project code 111584467585, CT 921-2019.
We would like to thank Cl\u00EDnica El Rosario, Poblado and Central branch, with whom it was possible to obtain approval from the Bioethics Committee for the inclusion of placentas donated by patients who signed informed consent.

Muestra la fuente de financiamiento declarada en la publicación.