WT1 and ovarian serous carcinoma: Figure 1D presents the MRI image of transplanted tumors 24 days after transplantation. In addition, the growth curve of xenograft tumors is shown in Figure 1E. The xenografts and the primary tumor showed similar morphology according to HE staining (Figure 1F). The intensive positive staining of PAX8 and WT1 in xenografts indicated the origin of serous ovarian carcinoma (Figure 1G). In addition, the weak positive staining of P53 was consistent with the TP53 mutation detected by WES.