SOX 4 is a transcription factor in the Wnt/β‐catenin signaling pathway; Hu et al showed that lncRNA CCAT1 targets SOX4 by binding to miR‐130a‐3p, thereby upregulating ABCG2 and reducing the chemosensitivity of lung cancer cells.69 Here, ABCG2 is linked to lung carcinoma.