Journal: Cells
Article Title: Targeting BC200/miR218-5p Signaling Axis for Overcoming Temozolomide Resistance and Suppressing Glioma Stemness
doi: 10.3390/cells9081859
Figure Lengend Snippet: miR-218-5p regulated cell sphere formation, colony formation, and TMZ resistance in GB cells in vitro. ( A ) The differential expression of miR-218-5p in GB cell lines and normal human astrocytes. ( B ) Pearson’s correlation curve identified a negative correlation between BC200 and miR-218-5p in GB tissues. ( C ) Sphere formation assays showed that inhibition or mock transfection of miR-218-5p regulated GB cell stemness. ( D ) Colony formation assays showed that inhibition or mock transfection of miR-218-5p regulated GB cell survival. ( E ) The viability of GB cells with inhibition or mock transfection of miR-218-5p was analyzed through SRB assay 48 h after TMZ (0–1000 μM) treatment. ( F ) CCK-8 assay showed that inhibition or mock transfection of miR-218-5p had no effect on GB cell proliferation. ( G ) The protein levels of SOX2, Oct4, BRPC1, MRP1 and MDR1 with inhibition or mock transfection of miR-218-5p. ( H ) The protein levels of MGMT, MLH1, MSH2, MSH6 and PMS2 following inhibition or mock transfection of miR-218-5p in GB cells were determined through western blot. * p < 0.05, ** p < 0.01 and *** p < 0.001.
Article Snippet: The human MGMT open reading frame (ORF) plasmid was purchased from OriGene (Cat# MGMT (RC229131, Taipei, Taiwan) and the cells transfected according to vendor’s instructions; MGMT-overexpressing U87MG cells were then allowed to grow at 37 °C in 5% CO 2 humidified atmosphere in Dulbecco’s modified Eagle’s medium (DMEM).
Techniques: In Vitro, Quantitative Proteomics, Inhibition, Transfection, Sulforhodamine B Assay, CCK-8 Assay, Western Blot