ERBB2 and breast cancer: Given the crucial roles of KIFs in cellular functions and human diseases (12, 13,15), we examined changes in expression of the KIF family members (Supplemental Table 1; supplemental material available online with this article; https://doi.org/10.1172/JCI183531DS1) in HR+/HER2– BC by integrative analyses of HR+/HER2– BC data sets from FUSCC (27), TCGA, and METABRIC.