GBP1 and ovarian serous cystadenocarcinoma: The results of IHC showed that GBP1 protein was overexpressed in tumor tissues of breast cancer, HNSC, renal cancer, and ovarian serous cystadenocarcinoma (OV) compared with normal tissues (Figure 1D), and GBP1 protein was mainly located in the cytoplasm and membrane of tumor cells.