CCL22 and hereditary clear cell renal cell carcinoma: These findings are supported in the study by Ye et al., in which hsa_circ_0039569 was upregulated in endometrial carcinoma [10] and are consistent with a previous study in renal cell carcinoma, which indicated that hsa_circ_0039569 led to an increase in proliferation and metastasis by targeting the miR-34a-5p/C-C motif chemokine ligand 22 (CCL22) axis [23].