The function and clinical relevance of lncRNA UBE2CP3-001 in human gliomas
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Submission date: 2016-09-04
Final revision date: 2016-12-10
Acceptance date: 2016-12-23
Online publication date: 2018-10-23
Publication date: 2018-10-31
Arch Med Sci 2018;14(6):1308-1320
Gliomas are the most frequent primary tumors in the human brain. Recent studies have identified a class of long noncoding RNAs, named lncRNAs, which were reported to participate in regulating the development of various diseases, including gliomas. In our previous studies, we found that lncRNA UBE2CP3-001 was overexpressed in gliomas but not in normal tissue. However, the molecular functions of UBE2CP3-001 in glioma are largely unknown.

Material and methods:
The presence of UBE2CP3-001 in U87 cells, glioma tissues and normal brain tissues was detected by real-time RT-PCR. The ability of U87 cells to migrate was analyzed using a cellular wound healing assay after downregulation of UBE2CP3-001. The survival rate of U87 cells after UBE2CP3-001 knockdown was also analyzed using the CCK8 assay. In vivo tumor weights from xenograft tumors transfected with UBE2CP3-001 shRNA were further analyzed using in vivo animal experiments. The expression levels of MMP-9 and TRAF3IP2 were determined by Western blot.

Our data showed that UBE2CP3-001 was overexpressed in most glioma tissues (p < 0.01). Downregulation of UBE2CP3-001 could inhibit cell migration (p < 0.01) and invasiveness (p < 0.01) of U87 cells. Downregulation of UBE2CP3-001 in U87 cells also suppressed the cell proliferation (p < 0.01) and promoted apoptosis (p < 0.01). Furthermore, in vivo studies confirmed that knockdown of UBE2CP3-001 could retard the growth of U87 xenograft tumors (p < 0.01). Western blot analysis showed that knockdown of UBE2CP3-001 could effectively inhibit the expression of MMP-9 (p < 0.01) and TRAF3IP2 (p < 0.01) in U87 glioma cells.

These data suggest an important role of UBE2CP3-001 in glioma and indicate its potential application in anti-glioma therapy.

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