Fig. 4: Comprehensive gene expression analysis of miR-34a/b/c-deficient cells after treatment with 5-FU.

A Principal component analysis of mRNAs expression in WT and miR-34a/b/c-KO HCT116 cells treated with DMSO or 5-FU for 48 h. B Volcano plots showing differential RNA expression with FDR in −log10 scale and fold change in log2 scale. Significantly up- and downregulated genes (FDR < 0.05 & absolute fold change > 1.5) are highlighted in red and blue respectively as indicated. Non-significantly regulated genes are shown in gray. C Venn diagram displaying the number of differentially expressed mRNAs shared between WT and miR-34a/b/c-KO cells (5-FU vs control). D Overrepresentation analysis (ORA) of mRNAs significantly regulated in untreated miR-34a/b/c-KO vs. wild-type cells. E Overrepresentation analysis (ORA) of mRNAs significantly regulated in 5-FU-treated miR-34a/b/c-KO and wild-type cells.