Abstract:
:Certain microRNAs (miRs) regulate the progression and metastasis of various cancer types. In the present study, the role of miR-370 in the progression and proliferation of human astrocytoma and glioblastoma cells was assessed and the underlying molecular mechanism was investigated. miR-370 levels in clinical specimens of human glioma and peritumoral tissues were determined by reverse-transcription quantitative PCR. Oligonucleotide mimics and inhibitors were transfected into the U-251MG human astrocytoma cell line and the and U-87MG glioblastoma cell line and the cell viability of was determined by an MTT assay. The expression of β-catenin and forkhead box protein (FOX)O3a was determined by western blot analysis. The results revealed that the expression of miR-370 in human glioma tissues was significantly decreased compared with that in peritumoral tissues. The miR-370 levels in patients with grade III/IV gliomas were significantly decreased compared with those in grade I/II. Transfection with miR-370 mimics inhibited the proliferation of U-251MG and U-87MG cells. Furthermore, the miR-370 levels were negatively correlated with β-catenin and positively correlated with nuclear FOXO3a. In conclusion, miR-370 inhibited the proliferation of human glioma cells by regulating the levels of β-catenin and the activation of FOXO3a, suggesting that miR-370 was a tumor suppressor in the progression of human astrocytoma and glioblastoma cells.
journal_name
Exp Ther Medjournal_title
Experimental and therapeutic medicineauthors
Lu M,Wang Y,Zhou S,Xu J,Li J,Tao R,Zhu Ydoi
10.3892/etm.2017.5494subject
Has Abstractpub_date
2018-01-01 00:00:00pages
1093-1098issue
1eissn
1792-0981issn
1792-1015pii
ETM-0-0-5494journal_volume
15pub_type
杂志文章abstract::3-Hydroxy-3-methylglutaric aciduria (3-HMG, OMIN 246450) is a rare autosomal recessive metabolic disorder caused by a deficiency of 3-hydroxy-3-methylglutaryl-CoA lyase, a key enzyme in leucine metabolism and ketone body synthesis. Acute episodes of 3-HMG may be triggered by fasting or infection, and symptoms include ...
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journal_title:Experimental and therapeutic medicine
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