suppresses proliferation and invasion and promotes apoptosis of meningioma by targeting AEG-1.

BACKGROUND

has been indicated to act as a tumor suppressor in various cancers. However, the function and molecular mechanism of in meningioma progression have not been elucidated.

MATERIALS AND METHODS

Quantitative real-time polymerase chain reaction (qRT-PCR) was performed to detect the expression levels of and AEG-1 mRNA in meningioma tissues and cell lines. The protein level of AEG-1 was measured by Western blot analysis. MTT assay, Transwell invasion assay and flow cytometry analysis were carried out to determine the proliferation, invasion and apoptosis of IOMM-Lee and CH-157MN cells, respectively. Target gene of was verified by luciferase reporter analysis.

RESULTS

expression was downregulated, and AEG-1 expression was upregulated in meningioma tumor tissues. overexpression suppressed proliferation and invasion and induced apoptosis in IOMM-Lee and CH-157MN cells. Moreover, AEG-1 was a direct target of . Restoration of AEG-1 expression reversed -mediated suppression of the proliferation and invasion and -induced apoptosis in IOMM-Lee and CH-157MN cells.

CONCLUSION

repressed proliferation and invasion and promoted apoptosis of meningioma cells by targeting AEG-1. The present study provided a better understanding of the meningioma pathogenesis and a promising therapeutic target for meningioma patients.