VOPP1 and cancer: Some of these differentially expressed circRNAs were derived from genes including those associated with glucocorticoid receptor signaling (Smarcc1), Rho GTPase activating protein (Arhgap10), ATP/GTP binding Carboxypeptidase (Agtpbp1) and Vesicular, Overexpressed in Cancer, and Prosurvival Protein 1 (Vopp1).