In addition, the combination of FISH and IF assays showed that the levels of p‐Tau (S324), p‐Tau (S214), and hsa_circ_0001546 were gradually decreased in primary ovarian cancer, omentum metastasis, and peritoneum metastasis tissues, and the levels of these factors were positively correlated (Figure 7H; Figure S5, Supporting Information). The gene discussed is MAPT; the disease is ovarian cancer.