Tumor suppressor function of miR-483-3p on squamous cell carcinomas due to its pro-apoptotic properties.
Cell Cycle
; 12(14): 2183-93, 2013 Jul 15.
Article
em En
| MEDLINE
| ID: mdl-24067364
ABSTRACT
The frequent alteration of miRNA expression in many cancers, together with our recent reports showing a robust accumulation of miR-483-3p at the final stage of skin wound healing, and targeting of CDC25A leading to an arrest of keratinocyte proliferation, led us to hypothesize that miR-483-3p could also be endowed with antitumoral properties. We tested that hypothesis by documenting the in vitro and in vivo impacts of miR-483-3p in squamous cell carcinoma (SCC) cells. miR-483-3p sensitized SCC cells to serum deprivation- and drug-induced apoptosis, thus exerting potent tumor suppressor activities. Its pro-apoptotic activity was mediated by a direct targeting of several anti-apoptotic genes, such as API5, BIRC5, and RAN. Interestingly, an in vivo delivery of miR-483-3p into subcutaneous SCC xenografts significantly hampered tumor growth. This effect was explained by an inhibition of cell proliferation and an increase of apoptosis. This argues for its further use as an adjuvant in the many instances of cancers characterized by a downregulation of miR-483-3p.
Palavras-chave
Texto completo:
1
Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Neoplasias Bucais
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Carcinoma de Células Escamosas
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Regulação Neoplásica da Expressão Gênica
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Apoptose
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MicroRNAs
Limite:
Animals
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Female
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Humans
Idioma:
En
Revista:
Cell Cycle
Ano de publicação:
2013
Tipo de documento:
Article