Mo et al. showed that circRNF13 bound to the 3’- Untranslated Region (3’-UTR) of the SUMO2 mRNA and stabilized it, facilitating GLUT1 SUMOylation and subsequent degradation, ultimately inhibiting glycolysis and nasopharyngeal carcinoma (NPC) progression [105]. The gene discussed is SLC2A1; the disease is nasopharyngeal carcinoma.