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Long noncoding RNA SNHG15 promotes human breast cancer proliferation, migration and invasion by sponging miR-211-3p.

Long noncoding RNA SNHG15 promotes human breast cancer proliferation, migration and invasion by sponging miR-211-3p.
Author Information (click to view)

Kong Q, Qiu M,


Kong Q, Qiu M, (click to view)

Kong Q, Qiu M,

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Biochemical and biophysical research communications 2017 12 04() pii 10.1016/j.bbrc.2017.12.013

Abstract

Long non-coding RNAs (lncRNA) have been demonstrated to act as essential regulators in the development and progression of breast cancer. In our study, we found that long noncoding RNA SNHG15 was highly expressed in breast cancer tissues and cell lines. And the expression of SNHG15 was correlated with TNM stage, lymphnode metastasis and survival in breast cancer patients. SNHG15 knockdown significantly inhibited the proliferation and induced apoptosis in breast cancer cells in vitro and in vivo. Besides, SNHG15 downregulation suppressed cell migration and invasion in MCF-7 and BT-20 cells, and inhibited epithelial-mesenchymal transition (EMT). In mechanism, we found that SNHG15 acted as a competing endogenous RNA to sponge miR-211-3p, which was downregulated in breast cancers and inhibited cell proliferation and migration. Our results showed that there was a negative correlation between SNHG15 and miR-211-3p expression in breast cancer patients. Collectively, we, for the first time, revealed the functions of SNHG15 and miR-211-3p in breast cancer.

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