Downregulation of TGF-ß1 suppressed proliferation and increased chemosensitivity of ovarian cancer cells by promoting BRCA1/Smad3 signaling
Biol. Res
;
51: 58, 2018. graf
Article
Dans Anglais
| 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.
Texte intégral:
Disponible
Indice:
LILAS (Amériques)
Sujet Principal:
Tumeurs de l'ovaire
/
Régulation négative
/
Gène BRCA1
/
Protéine Smad-3
/
Facteur de croissance transformant bêta-1
Limites du sujet:
Animaux
/
Femelle
/
Humains
/
Mâle
langue:
Anglais
Texte intégral:
Biol. Res
Thème du journal:
Biologie
Année:
2018
Type:
Article
Pays d'affiliation:
Chine
Institution/Pays d'affiliation:
Tongji University School of Medicine/CN
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