For example, CircMAP2K4 and hsa_circ_0072309 enhance HCC and NSCLC cells proliferation and migration via the CircMAP2K4/miR-139-5p/YTHDF1 axis [155] and hsa_circ_0072309/miR-607/FTO axis [156], respectively. Here, YTHDF1 is linked to non-small cell lung carcinoma.