RAC2 and neoplasm: Figure 7E implied that metastatic OvCa lesions had significantly higher RAC2 expression (IRS score = 7.90 ± 3.37), compared with normal controls (IRS score = 5.95 ± 3.17) and primary tumour lesions (IRS score = 6.62 ± 2.41, p‐value < 0.05).