JAK2 tyrosine kinase inhibitor AG490 suppresses cell growth and invasion of gallbladder cancer cells via inhibition of JAK2/STAT3 signaling.
J Biol Regul Homeost Agents
; 31(1): 51-58, 2017.
Article
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| MEDLINE
| ID: mdl-28337870
ABSTRACT
The Janus kinase-signal transducers and activators of transcription signaling pathway (JAK/STAT pathway) have displayed a critical role in tumor development and progression in multiple malignancies. Previous studies showed that inhibition of JAK/STAT signaling blocked cell growth and metastasis in cancer cells, however, the antitumor effects of JAK inhibitor AG490 on gallbladder cancer (GBC) have not been reported. Our present study aimed to investigate the effects and associated mechanisms of JAK inhibitor AG490 on cell growth, invasive potential and apoptosis in GBC cells (GBC-SD and SGC-996) indicated by MTT, cell colony formation, Transwell and flow cytometry. As a consequence, we found that JAK2 inhibitor AG490 inhibited cell growth and invasion, and induced cell apoptosis and cycle arrest in GBC-SD and SGC-996 cells. Furthermore, the expression levels of p-JAK2, p-STAT3, VEGFC-/-D and cyclinD1 were downregulated, while p53 expression was upregulated in AG490-treated GBC cells indicated by Western blot assay. Therefore, our findings demonstrate that JAK inhibitor AG490 inhibits growth and invasion of GBC cells via blockade of JAK2/STAT3 signaling and provides the potential therapeutic strategy for the treatment of GBC patients.
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Base de datos:
MEDLINE
Asunto principal:
Regulación Neoplásica de la Expresión Génica
/
Tirfostinos
/
Inhibidores de Proteínas Quinasas
/
Células Epiteliales
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Factor de Transcripción STAT3
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Janus Quinasa 2
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Antineoplásicos
Límite:
Humans
Idioma:
En
Revista:
J Biol Regul Homeost Agents
Asunto de la revista:
BIOLOGIA
/
BIOQUIMICA
Año:
2017
Tipo del documento:
Article