According to the correlation analysis, the level of expression of the CDH11 gene in the tumor tissue of patients with BC often positively correlates with the levels of expression of the ELOVL5 and IGFBP6 genes (ELOVL5: in four data sets of ER+ BC and in four data sets for ER− BC; IGFBP6: in seven data sets of ER+BC and three data sets of ER−BC). The gene discussed is IGFBP6; the disease is breast cancer.