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Alteraciones vasculares relacionadas con la edad en el plexo coroideo: nuevas perspectivas de estudios de

Zhe Sun^1,2, Chenyang Li¹, Dominique Leitner³

¹Department of Radiology, NYU Grossman School of Medicine, New York, NY, USA.

Aging and disease

|September 3, 2025

Resumen

El envejecimiento del plexo coroideo (ChP) muestra cambios vasculares y estructurales que afectan el fluido cerebral y las funciones inmunes. Estas alteraciones están relacionadas con enfermedades neurodegenerativas como la enfermedad de Alzheimer, lo que pone de relieve la necesidad de realizar más investigaciones.

Área de la Ciencia:

La neurociencia
Biología vascular
Investigación sobre el envejecimiento

Sus antecedentes:

El plexo coroideo (PC) produce líquido cefalorraquídeo (LCR), pero sus cambios vasculares y estructurales de envejecimiento son poco estudiados.
Estos cambios pueden alterar la homeostasis del fluido cerebral, la regulación inmune y la eliminación de desechos, lo que contribuye a la neurodegeneración.
La ChP actúa como una interfaz crítica entre la sangre y el LCR, por lo que su envejecimiento es un factor clave en la salud del cerebro.

Objetivo del estudio:

Revisar las alteraciones vasculares y estructurales relacionadas con la edad en la PC.
Explorar el impacto de estos cambios en la dinámica del LCR, la función inmune y la barrera sangre-LCR (BCSFB).
Discutir las implicaciones para las enfermedades neurodegenerativas e identificar las direcciones de investigación futuras.

Principales métodos:

Análisis histopatológico del envejecimiento de la ChP.
Técnicas de neuroimagen, incluida la resonancia magnética volumétrica y la resonancia magnética con contraste de alta resolución.
Estudios proteómicos en demencia, específicamente en la enfermedad de Alzheimer (EA).

Principales resultados:

El ChP envejecido a menudo se agranda, al contrario de la contracción, debido a cambios distróficos.
La histología muestra degeneración epitelial, membrana basal engrosada y fibrosis estromal.
La proteómica en la EA revela alteraciones en las proteínas relacionadas con el sistema inmunitario y en las relacionadas con el aclaramiento del LCR.

Conclusiones:

Los cambios vasculares y estructurales de la CHP relacionados con la edad tienen un impacto significativo en la homeostasis cerebral y la integridad de la BCSFB.
Estas alteraciones están implicadas en la patogénesis de enfermedades neurodegenerativas como AD, PD, NPH y ELA.
Una mayor investigación sobre el envejecimiento de la CHP es crucial para desarrollar estrategias diagnósticas y terapéuticas para los trastornos neurológicos.

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