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Let-7i-3p inhibe la progresión del cáncer gástrico al dirigirse a CCND1 y suprimir la vía de señalización NF-κB

  • 0School of Forensic Medicine, Xinxiang Medical University, Xinxiang, China; Xinxiang Engineering Technology Research Center of immune checkpoint drug for Liver-Intestinal Tumors, Xinxiang Medical University, Xinxiang, China; School of Basic Medical Sciences, Xinxiang Medical University, Xinxiang, China.
International Journal of Biological Macromolecules +

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21 de agosto de 2025

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21 de agosto de 2025

Ver abstracta en PubMed

Resumen

Este resumen es generado por máquina.

El microARN Let-7i-3p inhibe la progresión del cáncer gástrico inhibiendo la proliferación y la migración. Se dirige a la ciclina D1 (CCND1), afectando la vía NF-κB, ofreciendo una estrategia terapéutica potencial para la GC.

Área De La Ciencia

  • En el campo de la oncología
  • Biología molecular
  • La genética

Sus Antecedentes

  • El cáncer gástrico (GC) es una malignidad significativa del sistema digestivo humano.
  • El papel de Let-7i-3p en la patogénesis de GC es actualmente desconocido.
  • Comprender la participación del microARN es crucial para las nuevas estrategias terapéuticas.

Objetivo Del Estudio

  • Para aclarar las funciones biológicas y los mecanismos de Let-7i-3p en el cáncer gástrico.
  • Investigar Let-7i-3p como un objetivo terapéutico potencial para el GC.

Principales Métodos

  • Los ensayos in vitro (CCK-8, formación de colonias, ciclo celular, transwell, cicatrización de heridas) evaluaron la proliferación y la migración.
  • El ensayo de doble Luciferasa identificó objetivos genéticos directos.
  • Se evaluó la eficacia in vivo en modelos de ratón con xenotransplante.
  • Se analizaron las vías de señalización de Western blotting y RT-qPCR.

Principales Resultados

  • Let-7i-3p inhibió significativamente la proliferación, la migración y la transición epitelial-mesenquimal (EMT) de las células GC in vitro.
  • Let-7i-3p suprimió el crecimiento tumoral in vivo.
  • La ciclina D1 (CCND1) fue identificada como un objetivo directo de Let-7i-3p.
  • Let-7i-3p suprimió la vía de señalización NF-κB mediante la regulación a la baja de CCND1.

Conclusiones

  • Let-7i-3p actúa como supresor de tumores en el cáncer gástrico.
  • El eje Let-7i-3p/CCND1/NF-κB es un mecanismo clave que regula la progresión de la GC.
  • Let-7i-3p representa un objetivo terapéutico prometedor para el tratamiento del cáncer gástrico.

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