DHCR7 and ovarian cancer: To test this, we selected four ovarian cancer cell lines (OAW-42, OVCAR-8, ES-2, and EFO-21) of high molecular similarity to HGSOC tumors (Sinha et al, 2021) based on mutation, copy number and gene expression profiles for treatment with the DHCR7 inhibitor AY9944 (Datasets EV20 and 21).