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Los progenitores renales regulados por el estrógeno determinan la adaptación al embarazo y la preeclampsia
Carolina Conte1, Maria Lucia Angelotti1, Benedetta Mazzinghi2
1Department of Biomedical, Experimental and Clinical Sciences "Mario Serio," University of Florence, Florence, Italy.
Science (New York, N.Y.)
|September 4, 2025
Resumen
La señalización de estrógenos en los riñones femeninos mejora la función renal progenitora, protegiendo contra lesiones y apoyando el embarazo. La interrupción de esta vía conduce a complicaciones en el embarazo y a enfermedades renales a largo plazo en las madres y la descendencia.
Área de la Ciencia:
- Nefrología
- Endocrinología
- Biología del desarrollo
Sus antecedentes:
- La enfermedad renal exhibe un dimorfismo sexual significativo a nivel mundial.
- El papel del estrógeno en la salud renal y la adaptación al embarazo no se comprende completamente.
Objetivo del estudio:
- Investigar el papel de la señalización del estrógeno en las células progenitoras renales durante el desarrollo del riñón femenino y el embarazo.
- Para aclarar el impacto de la alteración alfa del receptor de estrógeno en los resultados del embarazo y la salud renal de la descendencia.
Principales métodos:
- Utilizó el rastreo de linaje y la secuenciación de ARN de una sola célula en modelos de ratón.
- Se examinaron los efectos de la deleción alfa del receptor de estrógeno en progenitores renales.
Principales resultados:
- La señalización de estrógenos promueve la autorrenovación y diferenciación de los progenitores renales, aumentando la capacidad de filtración renal en las hembras después de la pubertad.
- La eliminación del receptor alfa de estrógeno en progenitores renales dio lugar a preeclampsia, restricción del crecimiento fetal y aumento de la hipertensión materna y enfermedad renal crónica.
- La descendencia de las madres afectadas exhibió un número reducido de nefronas, lo que condujo a hipertensión temprana y mayor susceptibilidad a la enfermedad renal.
Conclusiones:
- La aptitud renal, impulsada por los progenitores renales, es crucial para el éxito del embarazo y la prevención de la preeclampsia.
- La señalización de estrógenos en los progenitores renales es un determinante clave del dimorfismo sexual en la enfermedad renal.
- Estos hallazgos tienen implicaciones para comprender y tratar potencialmente las enfermedades renales en las mujeres y durante el embarazo.
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