p21-Activated Kinase 4 (PAK4) as a Predictive Marker of Gemcitabine Sensitivity in Pancreatic Cancer Cell Lines / Journal of the Korean Cancer Association, 대한암학회지
Cancer Research and Treatment
;
: 501-508, 2015.
Artículo
en Inglés
| WPRIM
| ID: wpr-189080
ABSTRACT
PURPOSE:
p21-activated kinases (PAKs) are involved in cytoskeletal reorganization, gene transcription, cell proliferation and survival, and oncogenic transformation. Therefore, we hypothesized that PAK expression levels could predict the sensitivity of pancreatic cancer cells to gemcitabine treatment, and PAKs could be therapeutic targets. MATERIALS ANDMETHODS:
Cell viability inhibition by gemcitabine was evaluated in human pancreatic cancer cell lines (Capan-1, Capan-2, MIA PaCa-2, PANC-1, Aspc-1, SNU-213, and SNU-410). Protein expression and mRNA of molecules was detected by immunoblot analysis and reverse transcription polymerase chain reaction. To define the function of PAK4, PAK4 was controlled using PAK4 siRNA.RESULTS:
Capan-2, PANC-1, and SNU-410 cells were resistant to gemcitabine treatment. Immunoblot analysis of signaling molecules reported to indicate gemcitabine sensitivity showed higher expression of PAK4 and lower expression of human equilibrative nucleoside transporter 1 (hENT1), a well-known predictive marker for gemcitabine activity, in the resistant cell lines. Knockdown of PAK4 using siRNA induced the upregulation of hENT1. In resistant cell lines (Capan-2, PANC-1, and SNU-410), knockdown of PAK4 by siRNA resulted in restoration of sensitivity to gemcitabine.CONCLUSION:
PAK4 could be a predictive marker of gemcitabine sensitivity and a potential therapeutic target to increase gemcitabine sensitivity in pancreatic cancer.
Texto completo:
Disponible
Índice:
WPRIM (Pacífico Occidental)
Asunto principal:
Neoplasias Pancreáticas
/
Fosfotransferasas
/
ARN Mensajero
/
Regulación hacia Arriba
/
Línea Celular
/
Supervivencia Celular
/
Reacción en Cadena de la Polimerasa
/
Tranportador Equilibrativo 1 de Nucleósido
/
ARN Interferente Pequeño
/
Proliferación Celular
Tipo de estudio:
Estudio diagnóstico
/
Estudio pronóstico
Límite:
Humanos
Idioma:
Inglés
Revista:
Cancer Research and Treatment
Año:
2015
Tipo del documento:
Artículo
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