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General Physiology and Biophysics Vol.38, No.4, p.295–304, 2019 |
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Title: Knockdown long non-coding RNA PEG10 inhibits proliferation, migration and invasion of glioma cell line U251 by regulating miR-506 | ||
Author: Junjun Liang, Nina Liu, Haibin Xin | ||
Abstract: Glioma is a serious malignant tumor without effective therapies till now. lncRNA PEG10 was reported to have some biological activities in cancers. Hence, we explored the effects of PEG10 on the human glioma cell line U251 cells. U251 cells were transfected with sh-PEG10 and/or miR-506 inhibitor. The expression of PEG10 and miR-506 was measured by qRT-PCR. Cell viability, cell apoptosis, cell migration and invasion were detected by CCK-8 assay, flow cytometry and Transwell chamber assay, respectively. The cell proliferation and apoptosis related p16, p53, Bcl-2, Bax, and pro-/Cleaved-Caspase-3/9, migration and invasion related-protein: matrix metalloproteinases MMP-2, MMP-9 and vimentin, and Raf/MEK/ERK and JAK1/STAT3 pathways-related proteins were accessed by Western blot. Transfection with sh-PEG10 inhibited cell viability, migration and invasion, and increased cell apoptosis. Meanwhile, PEG10 silence upregulated the expression of p16 and p53, Bax, cleaved-Caspase-3/9 expression, and downregulated Bcl-2 expression. PEG10 silence upregulated miR-506 expression. Co-transfection with sh-PEG10 and miR-506 inhibitor impaired the tumor suppressive effects. PEG10 knockdown decreased the phosphorylation of Raf/MEK/ERK and JAK1/STAT3-related proteins Raf, MEK, ERK, JAK1 and STAT3. PEG10 knockdown inhibited cell viability, migration and invasion, induced cell apoptosis through miR-506 upregulation, as well as inactivation of Raf/MEK/ERK and JAK1/STAT3 signal pathways. |
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Keywords: Glioma — PEG10 — miR-506 — Raf/MEK/ERK — JAK1/STAT3 | ||
Published online: 15-Jul-2019 | ||
Year: 2019, Volume: 38, Issue: 4 | Page From: 295, Page To: 304 | |
doi:10.4149/gpb_2019018 |
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