Cryptotanshinone Regulates the Expression of miRNAs in Chondrocytes
(A) Venn diagram of microarray analysis comparison between control (yellow) and CTS (purple) group indicated that a total of 1,006 miRNAs were differentially expressed (brown). Ctrl, Control; CTS, Cryptotanshinone. (B) A volcano plot indicating differentially regulated miRNA expression. miRNAs upregulated and downregulated are shown in red and green, respectively. Values are presented as the log2 of tag counts. (C) Hierarchical clustering analysis of miRNAs in chondrocytes stimulated with CTS (10 μM). The level of miRNA expression is color coded: red, upregulation; blue, downregulation; white, no change. (D) qRT-PCR measurement of miRNAs upregulated in the microarray assays. (E) Cultured human chondrocytes stimulated with CTS at different times were analyzed for miR-106a-5p expression. Each bar represents the mean ± SD of at least three independent experiments performed in triplicate. *p < 0.05, **p < 0.01.