Figure 2: Venn diagram of DEmRNAs and the ceRNA network. (a) Venn diagram of mRNAs involved in the ceRNA regulation network. As shown in the figure, the number of mRNAs shown in the red area represents only those showing differential expression. The blue area presents only the number of target mRNAs, while the purple area in the middle represents the mRNAs which are both differentially expressed and targets. (b) The miRNA-lncRNA-mRNA network. The nodes highlighted in red indicate expression upregulation, and the nodes highlighted in blue indicate expression downregulation. lncRNAs, miRNAs and mRNAs are represented by diamonds, rounded rectangles, and ellipses, respectively. DEmRNAs: Differentially expressed mRNAs, ceRNA: Competitive endogenous RNAs, miRNAs: MicroRNAs, lncRNA: Long noncoding RNAs