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.
Article
in Chinese
| 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>
Full text:
Available
Index:
WPRIM (Western Pacific)
Main subject:
Pathology
/
Apoptosis
/
Colonic Neoplasms
/
MicroRNAs
/
Cell Line, Tumor
/
Cell Proliferation
/
Genetics
Limits:
Humans
Language:
Chinese
Journal:
Journal of Southern Medical University
Year:
2014
Type:
Article
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