NOTCH3 and cancer: Several lncRNAs and circRNAs were found to “sponge” Notch3-targeting miRNAs, thus resulting in Notch3 overexpression and forming competing endogenous RNA (ceRNA) networks in cancer, including the RUSC1-AS1-miR-7-Notch3 axis (Chen et al., 2020), Circ_PUM1-miR-136-Notch3 axis (Zong et al., 2020), LINC00707-miR-206-Notch3 axis (Zhu et al., 2019), Circ_0058124-miR-218-Notch3 axis (Yao et al., 2019), LINC00210-miR-328-Notch3 axis (Zhang et al., 2018), FAM225A/HOTAIR-miR-613-Notch3 axis (Cai et al., 2017; Zhang et al., 2020), and TUG1-miR-1299-Notch3 axis (Pei et al., 2020).