Background: Bone morphogenetic protein 2 (BMP-2) is a member of the TGF-β superfamily that is closely correlated with many malignancies, particularly lung cancer. However, the effects of silenced BMP-2 on lung cancer cell proliferation and migration are not clear.Methods: Using quantitative real-time RT-PCR, BMP-2 mRNA expression was detected in 61 non-small cell lung cancer (NSCLC) samples. Survival curves were generated using follow-up data. Relationships between clinical or pathological characteristics and prognosis were analyzed. Cell viability assays and transwell migration assays were used to evaluate the effects of BMP-2 silencing on cell proliferation and migration of A549 and H460 cells.Results: BMP-2 mRNA expression was higher in NSCLC tissues compared to matched adjacent normal tissues (P < 0.01). High BMP-2 expression levels were significantly associated with the occurrence of lymph node metastases and tumor stage (P < 0.05). There were significant differences in survival curves between groups with metastatic lymph nodes and non-metastatic lymph nodes, as well as between groups with low BMP-2 expression and groups with high BMP-2 expression. In addition, we observed decreased proliferation and migration rates of the NSCLC-derived cell lines A549 and H460 that were transfected with siBMP-2 (P < 0.05).Conclusion: BMP-2 mRNA is overexpressed in NSCLC samples and is a risk factor for survival in patients with NSCLC. BMP-2 silencing can significantly inhibit A549 and H460 cell proliferation and migration.The virtual slide(s) for this article can be found here: http://www.diagnosticpathology.diagnomx.eu/vs/4263254471298866. © 2014 Chu et al.; licensee BioMed Central Ltd.
CITATION STYLE
Chu, H., Luo, H., Wang, H., Chen, X., Li, P., Bai, Y., … Zhang, G. (2014). Silencing BMP-2 expression inhibits A549 and H460 cell proliferation and migration. Diagnostic Pathology, 9(1). https://doi.org/10.1186/1746-1596-9-123
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