MiR-646 suppresses proliferation and metastasis of non-small cell lung cancer by repressing FGF2 and CCND2.
Cancer Med
; 9(12): 4360-4370, 2020 06.
Article
en En
| MEDLINE
| ID: mdl-32347652
ABSTRACT
MicroRNA-646 (miR-646) has been implicated in several other cancers; however, its functional mechanism in non-small cell lung cancer (NSCLC) remains unclear. In this study, we observed the downregulation of miR-646 expression in NSCLC tissues and cell lines. Low-level expression of miR-646 was associated with metastasis and stage of NSCLCs. Functional assays showed that overexpression of miR-646 could suppress NSCLC cell proliferation, clonogenicity, invasion, and inhibit epithelial-mesenchymal transition (EMT), whereas decreased miR-646 expression showed the opposite effects. Importantly, miR-646 overexpression attenuated in vivo tumor growth and metastasis in nude mice models. Mechanically, miR-646 directly targeted and suppressed fibroblast growth factor 2 (FGF2) and cyclin D2 (CCND2) expression. Reintroduction of FGF2 and CCND2 attenuated miR-646-mediated suppression of proliferation and invasion in NSCLC. Collectively, these results demonstrate that miR-646 acts as a tumor suppressor in NSCLC by targeting FGF2 and CCND2, and may serve as a therapeutic target for patients with NSCLC.
Palabras clave
Texto completo:
1
Banco de datos:
MEDLINE
Asunto principal:
Biomarcadores de Tumor
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Regulación Neoplásica de la Expresión Génica
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Factor 2 de Crecimiento de Fibroblastos
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Carcinoma de Pulmón de Células no Pequeñas
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MicroARNs
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Ciclina D2
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Neoplasias Pulmonares
Tipo de estudio:
Prognostic_studies
Límite:
Animals
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Female
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Humans
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Male
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Middle aged
Idioma:
En
Año:
2020
Tipo del documento:
Article