CUX1 and neuroblastoma: In addition, circ‐CUX1 levels were positively correlated with those of CUX1 in tissues of NB (R = 0.590, P < 0.0001), colon cancer (R = 0.868, P < 0.0001), or prostate cancer (R = 0.619, P = 0.0023; Fig 2G).