Matrix metalloproteinase 13: a potential intermediate between low expression of microRNA-125b and increasing metastatic potential of non-small cell lung cancer.
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| Abstract |
Recent findings have suggested that microRNAs may be involved in the regulation of metastasis in malignant cancers such as non-small cell lung cancer (NSCLC). This study aimed to determine the relationship between expression of miR-125b and matrix metalloproteinase 13 (encoded by MMP-13) and the metastatic potential of cancer cells in NSCLC. Expression levels of miR-125b transcripts and MMP-13 proteins were analyzed by quantitative real-time PCR and immunohistochemistry, respectively, in tumor tissues and adjacent nontumor tissues from 42 patients with NSCLC. The interaction between miR-125b and MMP-13 expression and the associations between miR-125b and clinicopathologic data were analyzed. MiR-125 b expression levels were decreased in NSCLC tumor tissue samples, which correlated with an increased incidence of lymph node metastases, increased pathologic stage, increased MMP-13 expression levels, and decreased early progression-free survival. Additionally, we have demonstrated that increased levels of miR-125b can directly downregulate MMP-13 protein expression and inhibit the invasive capabilities of cancer cells. Expression levels of miR-125b were negatively correlated with metastatic potential of NSCLC tumors, which may function through regulation of MMP-13.
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| Authors | Xiaozhou Yu, Feng Wei, Jinpu Yu, Hua Zhao, Lei Jia, Yingnan Ye, Ruijuan Du, Xiubao Ren, Hui Li |
| Journal | Cancer genetics (Cancer Genet) Vol. 208 Issue 3 Pg. 76-84 (Mar 2015) ISSN: 2210-7762 [Print] United States |
| PMID | 25772251 (Publication Type: Journal Article, Research Support, Non-U.S. Gov't) |
| Copyright | Copyright © 2015 Elsevier Inc. All rights reserved. |
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