Nevertheless, some of these circRNAs have established biological roles in other tumor cells, e.g., circCDYL facilitates the progression of cervical cancer by targeting the miR-211-5p/SOX4 axis [52] and inhibits colorectal cancer cell proliferation and migration via the miR-382-5p/PTEN axis [53]. The gene discussed is PTEN; the disease is colorectal cancer.