miR-331-3p regulates expression of neuropilin-2 in glioblastoma.
miR-331-3p regulates expression of neuropilin-2 in glioblastoma.
复制标题
miR-331-3p调节神经蛋白-2在胶质母细胞瘤中的表达。
DOI:
10.1007/s11060-013-1271-7
复制
发表时间:
2014-01
影响因子:
3.9
通讯作者:
Leedman, Peter J.
中科院分区:
文献类型:
--
作者:
Epis, Michael R.;Giles, Keith M.;Candy, Patrick A.;Webster, Rebecca J.;Leedman, Peter J.
Aberrant expression of microRNAs (miRNAs), a class of small non-coding regulatory RNAs, has been implicated in the development and progression of high-grade gliomas. However, the precise mechanistic role of many miRNAs in this disease remains unclear. Here, we investigate the functional role of miR-331-3p in glioblastoma multiforme (GBM). We found that miR-331-3p expression in GBM cell lines is significantly lower than in normal brain, and that transient overexpression of miR-331-3p inhibits GBM cell line proliferation and clonogenic growth, suggesting a possible tumor suppressor role for miR-331-3p in this system. Bioinformatics analysis identified neuropilin-2 (NRP-2) as a putative target of miR-331-3p. Using transfection studies, we validated NRP-2 mRNA as a target of miR-331-3p in GBM cell lines, and show that NRP-2 expression is regulated by miR-331-3p. RNA interference (RNAi) to inhibit NRP-2 expression in vitro decreased the growth and clonogenic growth of GBM cell lines, providing further support for an oncogenic role for NRP-2 in high-grade gliomas. We also show that miR-331-3p inhibits GBM cell migration, an effect due in part to reduced NRP-2 expression. Finally, we identified a significant inverse correlation between miR-331-3p and NRP-2 expression in The Cancer Genome Atlas GBM cohort of 491 patients. Together, our results suggest that a loss of miR-331-3p expression contributes to GBM development and progression, at least in part via upregulating NRP-2 expression and increasing cell proliferation and clonogenic growth.
登录
查看更多内容
影响因子:
4
作者:
Goel, Hira Lal;Pursell, Bryan;Mercurio, Arthur M.
通讯作者:
Mercurio, Arthur M.
影响因子:
4.8
作者:
Epis, Michael R.;Giles, Keith M.;Leedman, Peter J.
通讯作者:
Leedman, Peter J.
影响因子:
3.9
作者:
Purow, Benjamin
通讯作者:
Purow, Benjamin
DOI:
10.1093/jnci/djm279
发表时间:
2008-01-16
期刊:
JOURNAL OF THE NATIONAL CANCER INSTITUTE
影响因子:
--
作者:
Gray, Michael J.;Van Buren, George;Ellis, Lee M.
通讯作者:
Ellis, Lee M.
影响因子:
3.7
作者:
Preukschas M;Hagel C;Schulte A;Weber K;Lamszus K;Sievert H;Pällmann N;Bokemeyer C;Hauber J;Braig M;Balabanov S
通讯作者:
Balabanov S