Dysregulation of microRNA-128 expression in WHO grades 2 glioma is associated with glioma-associated epilepsy: Down-regulation of miR-128 induces glioma-associated seizure.

Abstract:

OBJECTIVE:Approximately 80% of glioma patients will experience at least one seizure activity during the course of the disease, and because the etiology of glioma-related seizure is most likely multifactorial and complex, it remains poorly understood. MicroRNAs are a class of small noncoding RNAs that function as critical gene regulators. MicroRNA-128 was found to be decreased in glioblastoma, and knockout of the microRNA-128a gene could induce epilepsy in mice. Based on the Chinese Glioma Genome Atlas and previous study, we hypothesized that dysregulation of miR-128 expression may play a role in the pathogenesis of TAE in low-grade glioma. METHODS:Fifty-three low-grade glioma samples were analyzed for the expression levels of miR-128 using qRT-PCR, and candidate targets of miR-128 (Cacnge2, GRIK3, and GRIN2D) were detected by the 3'-UTR luciferase reporter assay. Four other miRs (miR-9, miR-192a, miR-92a, and miR-451) that showed dysregulation of glioblastoma in the CGGA data were also analyzed. RESULTS:The microRNA-128 expression levels were down-regulated in low-grade glioma tissue (t-test; p=0.009). Dysregulation of miR-128 expression in low-grade glioma is associated with glioma-associated epilepsy (p=0.006). No statistical significance of miR-9, miR-192a, miR-92a, and miR-451 was found to be associated with LGG. CONCLUSION:Our results here, together with other recent lines of evidence, indicate that miR-128 is an extremely attractive target for therapy in glioma patients with seizure.

journal_name

Epilepsy Res

journal_title

Epilepsy research

authors

Yuan Y,Xiang W,Yanhui L,Ruofei L,Yunhe M,Jiewen L,Qing M

doi

10.1016/j.eplepsyres.2016.08.005

subject

Has Abstract

pub_date

2016-11-01 00:00:00

pages

6-11

eissn

0920-1211

issn

1872-6844

pii

S0920-1211(16)30125-5

journal_volume

127

pub_type

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