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Análisis de los mecanismos genéticos de comorbilidad de la diabetes tipo 2, la enfermedad de Alzheimer y la

Siwei Tian^1,2, Wenjing Zong³, Ziling Zeng¹

¹Institute of Chinese Materia Medica, China Academy of Chinese Medical Sciences, Beijing, China, cacms.ac.cn.

BioMed research international

|February 20, 2026

Resumen

Este estudio identificó vías genéticas comunes y ocho genes clave que vinculan la diabetes mellitus tipo 2 (DMT2), la enfermedad de Alzheimer (EA) y la hipertensión (HTN). Estos hallazgos ofrecen información sobre los mecanismos de comorbilidad y posibles objetivos terapéuticos para estas enfermedades interconectadas.

Área de la Ciencia:

La genómica y la bioinformática.
Biología Molecular Biología Molecular
Biología de Sistemas Biología de Sistemas.

Sus antecedentes:

La diabetes mellitus tipo 2 (T2DM), la enfermedad de Alzheimer (AD) y la hipertensión (HTN) son frecuentemente condiciones comórbidas.
Los mecanismos moleculares subyacentes que conectan estas enfermedades siguen siendo en gran medida desconocidos.
Comprender estos fundamentos genéticos compartidos es crucial para desarrollar estrategias de tratamiento integradas.

Objetivo del estudio:

Identificar los genes asociados con la susceptibilidad a la DMT2, la DA y la NHT.
Aclarar los mecanismos y vías moleculares compartidos involucrados en la comorbilidad de estas tres enfermedades.
Descubrir posibles biomarcadores para estas condiciones interconectadas.

Principales métodos:

Análisis de datos del transcriptoma para identificar genes expresados diferencialmente (DEG) para cada enfermedad.
Análisis ponderado de la red de coexpresión génica (WGCNA) para detectar módulos de coexpresión específicos de la enfermedad.
Z_summary algoritmo para identificar módulos comunes a través de T2DM, AD y HTN.
Los índices de centralidad de flujo (FC) y de distancia más corta para identificar los genes de los conductores.
Análisis de enriquecimiento del conjunto de genes (GSEA) para la vía y el enriquecimiento funcional.
Atlas de Proteína Humana (HPA) y CIBERSORT para el análisis de tipo celular y de infiltración inmune.

Principales resultados:

Se identificaron cuatro módulos comunes y 343 DEGs superpuestos entre AD, T2DM y HTN.
Las vías de señalización MAPK y mTOR se enriquecieron significativamente.
Se identificaron ocho genes clave (ACTN4, BGN, PRELP, TSFM, UBC, ELAVL1, NRF1 y SUMO2) como potenciales impulsores de la comorbilidad.
Estos genes clave mostraron una expresión diferencial y estaban localizados principalmente en las células endoteliales, las células de Langerhans, las células del músculo liso y las células T.
El análisis de infiltración inmune indicó asociaciones con cinco tipos de células inmunes, incluidos los T-regs y los monocitos no clásicos.

Conclusiones:

Este estudio identificó con éxito módulos moleculares comunes y ocho genes de susceptibilidad clave que vinculan la DMT2, la EA y la NHT.
Estos hallazgos proporcionan nuevos conocimientos sobre los mecanismos etiológicos compartidos de estas comorbilidades.
Los genes y vías identificados representan objetivos potenciales para futuras intervenciones terapéuticas y el desarrollo de biomarcadores.

Palabras clave:

La enfermedad de Alzheimer es la enfermedad de Alzheimer.La diabetes tipo 2 es la diabetes tipo 2.La hipertensión es la hipertensión.El mecanismo molecular del mecanismo molecular.El módulo de red es el módulo de red.

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