(A) Immunohistochemistry was performed to detect the expression of KCNK1, LDHA, Pan Kla, ZWINT, ECT2, ANLN, and EZR in 18 pairs of breast cancer and adjacent breast epithelial tissues. (B) The statistical analysis of KCNK1, LDHA, Pan Kla, ZWINT, ECT2, ANLN, and EZR expression in 18 pairs of breast cancer and adjacent breast epithelial tissues. Unpaired two-sided t tests were used to analyze the data. (C) The percentage of KCNK1 expression levels in clinical breast cancer samples with high or low expression of LDHA, Pan Kla, ZWINT, ECT2, ANLN, and EZR. Data calculated by F-test. Source data are provided as S1 Data. LDHA, lactate dehydrogenase A.