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. 2021 May 14;11:667428. doi: 10.3389/fonc.2021.667428

Figure 3.

Figure 3

An overview to control of the cell cycle by circRNAs in HCC. The cell cycle consists of four phases: G1, S, G2, and M. circRNAs regulate the key regulatory molecules in HCC (cyclins, CDKs, CKIs, Myc and p53) by different mechanisms. circRNAs with proliferative potential are denoted as red circles whereas antiproliferative circRNAs are denoted as green circles.