Abstract:
:Glioblastoma is the most common malignant primary brain tumor among adults and one of the most lethal cancers. It is characterized by the deregulation of signaling pathways involving proliferation, growth, survival, and other factors. MicroRNAs (miRNAs) play a role in the regulation of genes by affecting the 3' untranslated region (UTR) of mRNA and affect many cell functions. The present study showed that miR-129 decreased the expression of retinoblastoma and p53 signaling pathways' genes, including CDK4, CDK6, and MDM2. The real-time PCR data indicated that expression of CDK4 in U251 and U87 cell lines declined by 69.8% and 47% (p < 0.05), respectively, and expression of CDK6 and MDM2 in U251 cells decreased by 55.3% (p < 0.0001) and 34.7% (p < 0.05), respectively. Luciferase assays confirmed that overexpression of miR-129 decreased the expression of the CDK4 gene by 58.9% (p < 0.01), CDK6 by 35.7% (p < 0.0001), and MDM2 by 49% (p < 0.001). Moreover, cell cycle assays showed a decrease of the G2-phase population to 10% and pre-G2 arrest in U87 cells (p < 0.05). Additionally, wound healing assays indicated that miR-129 overexpression inhibits cell growth of glioblastoma cells. These findings introduced novel targets for miR-129 in glioblastoma cells.
journal_name
Mol Ther Nucleic Acidsjournal_title
Molecular therapy. Nucleic acidsauthors
Moradimotlagh A,Arefian E,Rezazadeh Valojerdi R,Ghaemi S,Jamshidi Adegani F,Soleimani Mdoi
10.1016/j.omtn.2019.11.033subject
Has Abstractpub_date
2020-03-06 00:00:00pages
759-764issn
2162-2531pii
S2162-2531(19)30394-4journal_volume
19pub_type
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