Figure 5.

Schematic representation of a system of N = 4 ceRNAs species and N = 3 miRNA species. (Continuous blue arrows) Linkage of miRNA α to ceRNA i if i ∈ $\mathcal{B}$(α); (dashed red arrows) if i ∈ $\mathcal{S}$(α); (dotted green arrows) if i ∈ $\mathcal{F}$(α). In this case, ceRNAs 1 and 3 are both in $\mathcal{S}$(A) and $\mathcal{S}$(B), ceRNAs 3 and 4 are in $\mathcal{S}$(C), and ceRNA is 1 in $\mathcal{B}$(A). This situation results in the following interactions: symmetric cross-talk between ceRNAs 1 and 3, mediated by miRNAs A and B; symmetric cross-talk between ceRNAs 3 and 4, mediated by miRNA C; asymmetric cross-talk from ceRNA 2 to ceRNA 1, mediated by miRNA B; asymmetric cross-talk from ceRNA 2 to ceRNA 3, mediated by miRNA B.