Fig. 7

Regulatory networks of key genes. (A) Protein-protein interaction (PPI) network of key genes. (B) Competitive endogenous RNA (ceRNA) network of key genes. Red represents mRNA, blue represents microRNA (miRNA), and orange represents long non-coding RNA (lncRNA). (C,D) Prediction of methylation sites in key genes. (C) SLC25A12; (D) SLC7A5.