In addition to its influence on tumour progression through its angiostatic effects (Strieter et al., 2006), CXCL11 is part of the CXCR7/CXCL11 axis that was shown to induce the epithelial–mesenchymal transition and metastatic behaviour of OC cells under ERα control (Benhadjeba et al., 2018). This evidence concerns the gene ACKR3 and neoplasm.