Figure 2.
Genetically engineered miR-34a prodrug was processed to mature miR-34a in human osteosarcoma 143B cells (A), which consequently reduced the protein expression of miR-34a target genes including SIRT1, BCL2, CDK6 and c-MET (B). Cells were harvested at 72 h after treatment with tRNA/mir-34a or control tRNA/MSA, or vehicle. Mature miR-34a levels were quantitated by selective stem-loop reverse transcription RT-qPCR assay, and normalized to U6 levels. Protein was detected by Western blot analyses, and GAPDH was used as a loading control. Values are mean ± SD of triplicate treatments. ***P < 0.001 (one-way ANOVA), as compared with tRNA/MSA or vehicle control treatment.