Another study showed that DOCK4 expression level is downregulated in paclitaxel‐resistant breast cancers and lncRNA AC073284.4 might sponge miR‐18b‐5p to attenuate the invasion, metastasis, and epithelial–mesenchymal transition of breast cancer cells by upregulating DOCK4 expression.37 Here, DOCK4 is linked to breast cancer.