Accordingly, miR-195 was a target of hsa_circ_0013401, while PAK2 was a target of miR-195 (tested through reporter assays) and in a mouse xenograft model, hsa_circ_0013401 enhanced tumour formation and progression through the regulatory axis of miR-195/PAK2 [34]. The gene discussed is PAK2; the disease is neoplasm.