MiR-146b-5p suppresses EGFR expression and reduces in vitro migration and invasion of glioma.

MiR-146b-5p suppresses EGFR expression and reduces in vitro migration and invasion of glioma.
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DOI:
10.3109/07357907.2010.512596
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发表时间:
2010-12
影响因子:
2.4
通讯作者:
Chopp M
Chopp M
中科院分区:
医学4区
文献类型:
--
作者:
Katakowski M;Zheng X;Jiang F;Rogers T;Szalad A;Chopp M

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人miR-146 b-5 p位于染色体10q24.3上。10 q24 -26区域的丢失在胶质瘤中经常观察到。在这里,我们报告了miR-146 b-5 p抑制人胶质母细胞瘤细胞系中表皮生长因子受体(EGFR)的表达。miR-146 B-5 p的引入降低了细胞侵袭、迁移和蛋白激酶B(AKT)的磷酸化。miR-146 b-5 p抑制EGFR的翻译,并结合EGFR 3′-UTR。此外,对荷瘤小鼠中U87-MG激光捕获显微切割细胞的分析表明,miR-146 b-5 p的表达与距肿瘤中心的距离呈负相关。这些发现表明,miR-146 b-5 p的重建可能有助于治疗这种侵袭性肿瘤。
Human miR-146b-5p is located on chromosome 10q24.3. Loss of the 10q24-26 region is frequently observed in gliomas. Here, we report that miR-146b-5p suppresses expression of epidermal growth factor receptor (EGFR) in human glioblastoma cell lines. Introduction of miR-146b-5p decreases cell invasion, migration and phosphorylation of protein kinase B (AKT). MiR-146b-5p suppresses translation of EGFR, and binds to the EGFR 3′-UTR. Furthermore, analysis of U87-MG laser-capture micro-dissected cells in tumor-bearing mice indicated that expression of miR-146b-5p was inversely correlated with distance from the tumor core. These findings suggest that reconstitution of miR-146b-5p may be useful for treatment of this invasive tumor.
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