miR-335 inhibited cell proliferation of lung cancer cells by target Tra2ß.
Cancer Sci
; 109(2): 289-296, 2018 Feb.
Article
em En
| MEDLINE
| ID: mdl-29161765
ABSTRACT
Accumulating evidence has suggested that the dysregulation of miRNA is an important factor in the pathogenesis of lung cancer. Here, we demonstrate that miR-335 expression is reduced in non-small cell lung cancer (NSCLC) tumors relative to non-cancerous adjacent tissues, while the expression of Tra2ß is increased. In addition, clinical data revealed that the increased Tra2ß and decreased miR-335 expression observed in NSCLC cells was associated with poor patient survival rates. In vitro experimentation showed that the overexpression of miR-335 inhibited the growth, invasion and migration capabilities of A459 lung cancer cells, by targeting Tra2ß. In contrast, inhibition of miR-335 or overexpression of the Tra2ß target gene stimulated the growth, invasion and migratory capabilities of A459 lung cancer cells in vitro. Furthermore, overexpression of miR-335 or inhibition of Tra2ß decreased the phosphorylation of Rb-S780 and Rb-AKT. Overall, these findings suggest that the downregulation of miR-335 in A459 lung cancer cells promoted cell proliferation through upregulation of Tra2ß, mediated via activation of the AKT/mTOR signaling pathway, and suggest that miR-335 may have potential as a novel therapeutic target for NSCLC.
Palavras-chave
Texto completo:
1
Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Carcinoma Pulmonar de Células não Pequenas
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MicroRNAs
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Fatores de Processamento de Serina-Arginina
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Neoplasias Pulmonares
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Proteínas do Tecido Nervoso
Tipo de estudo:
Prognostic_studies
Limite:
Humans
Idioma:
En
Ano de publicação:
2018
Tipo de documento:
Article