To evaluate mRNA expression in HGSOC tumor cells precisely, we analyzed RGS2 mRNA expression in silico on the single-cell level in three publicly available HGSOC data sets [32,33,34] that included data of therapy-naïve patients, patients with neoadjuvant chemotherapy and patients with metastatic disease (Figure 3A). The gene discussed is RGS2; the disease is metastatic neoplasm.