HBP1 and breast cancer: The results showed that HBP1 is highly expressed in NPC cells, while lowly expressed in liver cancer cells QYG7703, SMMC7721, and HepG2 compared to the human hepatocyte line QSG7701, and breast cancer cells MCF-7, T47D and MDA-MB-231 compared to the human mammary epithelial cell line MCF-10A, and ovarian cancer cells, A2780 and PA-1 compared to the human ovarian epithelial cell line IOSE-80 (Fig. S1f).