Downregulation of TGF-ß1 suppressed proliferation and increased chemosensitivity of ovarian cancer cells by promoting BRCA1/Smad3 signaling
Biol. Res
;
51: 58, 2018. graf
Artículo
en Inglés
| LILACS
| ID: biblio-1011402
ABSTRACT
BACKGROUND:
Studies have demonstrated that transforming growth factor beta-1 (TGF-ß1) exhibits oncogenic activity in different types of cancer, including ovarian cancer (OC). However, its regulatory mechanism in OC and whether TGF-ß1 is involved in chemosensitivity regulation remains unclear. Thus, the aim of this study was to investigate the role of TGF-ß1 in OC.METHODS:
The OC cell line SKOV3 was employed, and TGF-ß1 overexpression or knockdown vectors were constructed. The cell proliferation of SKOV3 was evaluated with the cell counting kit (CCK8) kit after treatment with different concentrations of cis-platinum. Western blot and protein immunoprecipitation were employed to detect changes in BRCA1 and Smad3 expression and their interactions. Tumor growth in nude mice was evaluated.RESULTS:
The results showed that TGF-ß1 knockdown increased chemosensitivity by promoting BRCA1 expression and Smad3 phosphorylation. In vivo studies showed that TGF-ß1 knockdown significantly inhibited the growth of tumors, also by upregulating BRCA1 expression and Smad3 phosphorylation.CONCLUSION:
Taken together, our results suggest that TGF-ß1 knockdown inhibits tumor growth and increases chemosensitivity by promotion of BRCA1/Smad3 signaling.
Texto completo:
Disponible
Índice:
LILACS (Américas)
Asunto principal:
Neoplasias Ováricas
/
Regulación hacia Abajo
/
Genes BRCA1
/
Proteína smad3
/
Factor de Crecimiento Transformador beta1
Límite:
Animales
/
Femenino
/
Humanos
/
Masculino
Idioma:
Inglés
Revista:
Biol. Res
Asunto de la revista:
Biologia
Año:
2018
Tipo del documento:
Artículo
País de afiliación:
China
Institución/País de afiliación:
Tongji University School of Medicine/CN
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