TGF-ß1 alters microRNA profile in human gastric cancer cells.
Chin J Cancer Res
; 25(1): 102-11, 2013 Feb.
Article
en En
| MEDLINE
| ID: mdl-23372348
ABSTRACT
OBJECTIVE:
MicroRNAs (miRNAs) are important regulators that play a key role in tumorigenesis and tumor progression. Transforming growth factor-ß1 (TGF-ß1) is involved in invasion and metastasis in many tumors. In this study, we investigated the microRNAs (miRNA) profiles altered by TGF-ß1 in gastric cancer (GC) cells.METHODS:
We detected the expression profiles of miRNA by miRNA microarray and quantitative real-time polymerase chain reaction. Migration and invasion, wound-healing assay, prediction of miRNA targets, Western blot and qRT-PCR analysis were carried out to determine the role of one selected miRNA, namely miR-193b, in affecting the biological behaviors of GC BGC823 cells.RESULTS:
Among 847 human miRNAs in the microarray, three miRNAs (miR-27a, miR-29b-1 and miR-194) were up-regulated and three (miR-574-3p, miR-193b and miR-130b) were down-regulated in BGC823 cells treated with TGF-ß1 compared with control. miR-193b suppressed the invasion and metastasis of GC cells in vivo and in vitro, and down-regulated urokinase-type plasminogen activator (uPA) protein in GC cells.CONCLUSIONS:
TGF-ß1 altered miRNA expression profile in BGC823 cells. Among the altered miRNAs, TGF-ß1 induced the down-regulation of miR-193b, which inhibited cell invasion and metastasis in vivo and in vitro, and down-regulated uPA protein in GC cells.
Texto completo:
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Bases de datos:
MEDLINE
Tipo de estudio:
Prognostic_studies
Idioma:
En
Revista:
Chin J Cancer Res
Año:
2013
Tipo del documento:
Article
País de afiliación:
China