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TMEM121 suprime la proliferación y migración de las células de cáncer de cuello uterino a través de la interacción
Haochen Wang1, Siting Xu1, Sihui Li2
1College of Life Sciences, Hunan Normal University Changsha 410081, Hunan, China.
American journal of cancer research
|February 9, 2026
Resumen
La proteína transmembrana 121 (TMEM121) inhibe el crecimiento del cáncer cervical al interactuar con ERK, regulando a la baja los niveles de p-ERK1/2. Esta interacción ofrece nuevas dianas terapéuticas para el cáncer de cuello uterino.
Área de la Ciencia:
- Oncología Oncología.
- Biología Molecular Biología Molecular
- Biología celular Biología celular.
Sus antecedentes:
- El cáncer de cuello uterino sigue siendo un desafío significativo para la salud mundial.
- La vía de señalización de MAPK con frecuencia está desregulada en varios tipos de cáncer, incluido el cáncer de cuello uterino.
- Comprender los nuevos mecanismos moleculares que regulan la progresión del cáncer es crucial para desarrollar terapias efectivas.
Objetivo del estudio:
- Para investigar el papel de la proteína transmembrana 121 (TMEM121) en el cáncer cervical.
- Para dilucidar las interacciones moleculares y vías de señalización que implican TMEM121 en el cáncer de cuello uterino.
- Explorar el potencial de TMEM121 como objetivo terapéutico para el cáncer de cuello uterino.
Principales métodos:
- Análisis bioinformático de bases de datos de acceso público.
- Predicción de la interacción de las proteínas usando AlphaFold3.3.
- Validación experimental que incluye co-inmunoprecipitación e inmunofluorescencia.
- Secuenciación de ARN y análisis de citometría de flujo.
Principales resultados:
- La expresión de TMEM121 está negativamente correlacionada con la expresión de ERK en tejidos de cáncer cervical.
- TMEM121 interactúa directamente con ERK1/2, lo que lleva a la regulación a la baja de p-ERK1/2.2.
- Tanto el TMEM121 de longitud completa como su dominio transmembrana inhiben la proliferación e invasión de las células de cáncer de cuello uterino.
- La sobreexpresión de TMEM121 induce la detención del ciclo celular en fase S, que es reversible por un inhibidor de ERK.
Conclusiones:
- TMEM121 inhibe el crecimiento, la proliferación y la invasión de las células de cáncer de cuello uterino a través de su interacción con ERK y la posterior modulación de la vía de señalización MAPK.
- El dominio transmembranar de TMEM121 es crítico para sus funciones supresoras de tumores.
- TMEM121 representa un nuevo objetivo prometedor para el desarrollo de estrategias diagnósticas y terapéuticas para el cáncer de cuello uterino.
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