The ERK5 pathway in BRAFV600E melanoma cells plays a role in development of acquired resistance to dabrafenib but not vemurafenib.
FEBS Lett
; 598(16): 2011-2027, 2024 Aug.
Article
en En
| MEDLINE
| ID: mdl-38977937
ABSTRACT
Malignant melanoma, an aggressive skin cancer with a poor prognosis, frequently features BRAFV600E mutation resulting in activation of the MAPK pathway and melanocyte proliferation and survival. BRAFV600E inhibitors like vemurafenib and dabrafenib have enhanced patient survival, yet drug resistance remains a significant challenge. We investigated the role of the ERK5 pathway in BRAFV600E melanoma cells and cells with acquired resistance to PLX4720 (vemurafenib) and dabrafenib. In BRAFV600E melanoma, ERK5 inhibition minimally affected viability compared to ERK1/2 inhibition. In vemurafenib-resistant cells, ERK5 inhibition alone didn't impact viability or restore drug sensitivity to vemurafenib. However, in dabrafenib-resistant cells, ERK5 inhibition reduced viability and enhanced the anti-proliferative effect of MEK1/2 inhibition. Targeting the ERK5 pathway may represent a therapeutic opportunity in dabrafenib-resistant melanoma.
Palabras clave
Texto completo:
1
Colección:
01-internacional
Base de datos:
MEDLINE
Asunto principal:
Oximas
/
Resistencia a Antineoplásicos
/
Proteínas Proto-Oncogénicas B-raf
/
Proteína Quinasa 7 Activada por Mitógenos
/
Vemurafenib
/
Imidazoles
/
Melanoma
Límite:
Humans
Idioma:
En
Revista:
FEBS Lett
Año:
2024
Tipo del documento:
Article
Pais de publicación:
Reino Unido