MiRNA 17 family regulates cisplatin-resistant and metastasis by targeting TGFbetaR2 in NSCLC.
PLoS One
; 9(4): e94639, 2014.
Article
em En
| MEDLINE
| ID: mdl-24722426
ABSTRACT
MicroRNAs (miRNAs) have been proven to play crucial roles in cancer, including tumor chemotherapy resistance and metastasis of non-small-cell lung cancer (NSCLC). TGFß signal pathway abnormality is widely found in cancer and correlates with tumor proliferation, apoptosis and metastasis. Here, miR-17, 20a, 20b were detected down-regulated in A549/DDP cells (cisplatin resistance) compared with A549 cells (cisplatin sensitive). Over-expression of miR-17, 20a, 20b can not only decrease cisplatin-resistant but also reduce migration by inhibiting epithelial-to-mesenchymal transition (EMT) in A549/DDP cells. These functions of miR-17, 20a, 20b may be caused at least in part via inhibition of TGFß signal pathway, as miR-17, 20a, 20b are shown to directly target and repress TGF-beta receptor 2 (TGFßR2) which is an important component of TGFß signal pathway. Consequently, our study suggests that miRNA 17 family (including miR-17, 20a, 20b) can act as TGFßR2 suppressor for reversing cisplatin-resistant and suppressing metastasis in NSCLC.
Texto completo:
1
Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Cisplatino
/
Proteínas Serina-Treonina Quinases
/
Receptores de Fatores de Crescimento Transformadores beta
/
Carcinoma Pulmonar de Células não Pequenas
/
Resistencia a Medicamentos Antineoplásicos
/
MicroRNAs
/
Neoplasias Pulmonares
/
Metástase Neoplásica
Limite:
Humans
Idioma:
En
Ano de publicação:
2014
Tipo de documento:
Article