We found that MSLN was highly expressed in ovarian clear cell carcinoma, high-grade serous ovarian carcinoma, low-grade serous ovarian carcinoma, mucinous ovarian carcinoma, mucinous-serous cystadenocarcinoma of the ovary; in contrast, its expression is low in normal tissues (Figure 2A). This evidence concerns the gene MSLN and ovarian mucinous adenocarcinoma.