In the field of tumor research, it has been reported that NR5A2 as an oncogene is involved in the development of breast cancer (S. Wang et al., 2018), gastric cancer (Liu et al., 2019), prostate cancer (Xiao et al., 2018), and pancreatic cancer (Hale et al., 2014). The gene discussed is NR5A2; the disease is breast cancer.