期刊
CELLULAR AND MOLECULAR BIOLOGY
卷 63, 期 5, 页码 7-10出版社
C M B ASSOC
DOI: 10.14715/cmb/2017.63.5.2
关键词
miR-675; NF-kappa B; Non-small cell lung cancer
Non-small cell lung cancer (NSCLC) is a major type of lung cancer significantly affected human life. Current studies have revealed potential role of miR-675 in the etiology of lung cancer. Therefore, in this study, we aimed to investigate the role of miR-675 in NSCLC cell line. We recruited 92 cases of NSCLC patients from July 2009 to February 2011 in the oncology department. Tumor and peripheral tissue was collected for miR-675 expression. NSCLC cell lines with either miR-675 over-expression or low-expression were established. Western blotting and immunofluorescence staining were used for detecting P65 and pP65 expression and translocation in the nuclei. MiR-675 expression was significantly higher in the lung cancer tissue than the peripheral normal tissue (P < 0.001). The gene expression of pP65 was also increased and decreased in cells with over-expression or low-expression of miR-675, respectively (both P < 0.05). Whereas the trend of P65 expression was on the opposite (both P < 0.05), indicating the NF-kappa B signaling pathway was activated when miR-675 was expressed and vice versa. Immunofluorescence staining showed that more pP65 expression was clustered in the nuclei in miR-675 over-expressed cells, which further demonstrated NF-kappa B signaling pathway activation. Increased miR-675 expression is associated with NSCLC progression through activation of NF-kappa B signaling pathway.
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