The expression of CDR1as is upregulated in most tumors, such as colorectal cancer, hepatocellular carcinoma and breast cancer, and it exerts a tumor-promoting effect (Tang et al., 2017; Weng et al., 2017; Xu et al., 2017; Yang X. et al., 2017; Yuan et al., 2019; Zhang Z. et al., 2020; Zhao Y. H. et al., 2020). This evidence concerns the gene LINC00632 and breast cancer.