VSIR and neoplasm: Next, we explored whether VISTA-positive cell types affect the prognosis of patients with HGSOC.As a result, patients with VISTA-positive staining in TCs (p= 0.01) but not in tumor-infiltrating ICs (p= 0.2) showed significantly prolonged OS compared to those with negative VISTA expression (44% vs 28.6%) (Figure 3).