For example, circUHRF1 enhances oral squamous cell carcinoma (OSCC) tumorigenesis by modulating the expression of epithelial splicing regulatory protein 1 (ESRP1) through the miR-526b-5p/c-Myc/TGF-β1 axis [79]. Here, ESRP1 is linked to oral cavity squamous cell carcinoma.