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Induction and Analysis of Epithelial to Mesenchymal Transition
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Decodificación del Código Regulatorio: O-GlcNAcilación en la Transición Epitelio-Mesénquima (EMT)
Shisheng Zhou1, Wenhui Lou1, Zijun Wei1
1Jiangsu Key Laboratory of Medical Science and Laboratory Medicine, School of Medicine, Jiangsu University, 301 Xuefu Road, Zhenjiang, 212013, Jiangsu, China.
The Journal of biological chemistry
|February 8, 2026
Resumen
La modificación de N-acetilglucosamina O-ligada (O-GlcNAc) regula la transición epitelio-mesénquima (EMT), afectando la fibrosis y la metástasis. La comprensión del ciclo O-GlcNAc ofrece nuevas estrategias terapéuticas para enfermedades asociadas a EMT.
Área de la Ciencia:
- Bioquímica
- Biología Celular
- Biología Molecular
Sus antecedentes:
- La N-acetilglucosamina O-ligada (O-GlcNAc) es una modificación postraduccional dinámica que regula la función de las proteínas.
- El ciclo O-GlcNAc, controlado por la O-GlcNAc transferasa (OGT) y la O-GlcNAc hidrolasa (OGA), responde a la nutrición y el estrés celular.
- La transición epitelio-mesénquima (EMT) es crucial para el desarrollo, la fibrosis y la metástasis tumoral, e implica cambios en la adhesión y motilidad celular.
Objetivo del estudio:
- Revisar los roles de O-GlcNAc en la regulación de la EMT.
- Explorar las conexiones funcionales entre la O-GlcNAcilación y la EMT.
- Identificar proteínas clave O-GlcNAciladas involucradas en la EMT y comprender los mecanismos que impulsan estos cambios.
Principales métodos:
- Revisión de literatura de perspectivas recientes sobre la modificación O-GlcNAc y la EMT.
- Examen sistemático de las conexiones funcionales entre la O-GlcNAcilación y la EMT.
- Análisis de los mecanismos regulatorios transcripcionales y postraduccionales mediados por O-GlcNAc.
Principales resultados:
- La O-GlcNAcilación es central para la EMT, detectando señales de nutrientes y estrés para modular la plasticidad celular.
- El ciclo O-GlcNAc influye en aspectos clave de la EMT, incluida la supresión de E-cadherina y la sobreexpresión de N-cadherina/Vimentina.
- Esta modificación impacta tanto las vías canónicas como las no canónicas involucradas en la EMT.
Conclusiones:
- El ciclo O-GlcNAc es un mecanismo postraduccional significativo involucrado en varias facetas de la EMT.
- Comprender la interacción entre la O-GlcNAcilación y la EMT proporciona información mecanicista sobre la plasticidad celular.
- La orientación de las vías O-GlcNAc puede ofrecer nuevas estrategias terapéuticas para la metástasis y otras patologías asociadas a la EMT.
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