Expression of miR-146a in colon cancer and its significance / 南方医科大学学报
Journal of Southern Medical University
;
(12): 396-400, 2014.
Artigo
em Chinês
| WPRIM
| ID: wpr-356913
ABSTRACT
<p><b>OBJECTIVE</b>To investigate miR-146a expression in colonic cancer and its clinical implications.</p><p><b>METHODS</b>Quantitative real-time PCR was employed to detect the levels of miR-146a expression in colonic cancer tissues, pair-matched adjacent normal tissues and different colonic cancer cell lines. MTT essay was used to evaluate the proliferation of colonic cancer SW260 cells transfected with miR-146a mimics, and the cell cycle and apoptosis of the cells were analyzed with flow cytometry.</p><p><b>RESULTS</b>Compared with the normal tissues, 38 of the 43 colonic cancer samples showed down-regulated miR-146a expression, which was associated with poor tumor differentiation. The expression of miR-146a in the tumor tissues was significantly correlated with tumor size and clinical stages. The patients with high miR-146a expression levels had significantly longer total survival time than those with low expression of miR-146a. In SW260 cell cultures, transfection with miR-146a mimics significantly inhibited cell growth (P<0.05) and increased the cell apoptosis rate (11.9% vs 5.9%) but produced no obvious effect on cell cycle.</p><p><b>CONCLUSIONS</b>miR-146a may serve as a potential therapeutic target for colonic cancer for its role in inhibiting colonic cancer cell proliferation.</p>
Texto completo:
DisponíveL
Índice:
WPRIM (Pacífico Ocidental)
Assunto principal:
Patologia
/
Apoptose
/
Neoplasias do Colo
/
MicroRNAs
/
Linhagem Celular Tumoral
/
Proliferação de Células
/
Genética
Limite:
Humanos
Idioma:
Chinês
Revista:
Journal of Southern Medical University
Ano de publicação:
2014
Tipo de documento:
Artigo
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