The article entitled “DNA damage response is prominent in ovarian high-grade serous carcinomas, especially those with Rsf-1 (HBXAP) overexpression” reported by M. Kushirsagar et al. in this special issue provides new evidence that Rsf-1 overexpression was correlated with DNA damages which was observed more frequently in high-grade ovarian serous carcinoma. The gene discussed is RSF1; the disease is ovarian serous carcinoma.