VISTA: A promising target for overcoming immune evasion in gynecologic cancers.

• VISTA is an inhibitory immune checkpoint that acts as a ligand or receptor to exert immunosuppressive effects. • Abnormal overexpression of VISTA in gynecological tumors promotes tumor progression. Immune checkpoint blockade (ICB) therapy has revolutionized cancer treatment but has shown limited efficacy in gynecologic cancers. VISTA (V-domain Ig suppressor of T-cell activation), a member of the B7 family, is emerging as another checkpoint that regulates the anti-tumor immune responses within the tumor microenvironment. This paper reviews the structure, expression, and mechanism of action of VISTA. Furthermore, it highlights recent advances in VISTA-blocking therapies and their potential in improving outcomes for patients with gynecologic cancers. By understanding the role of VISTA in mediating the immune evasion of gynecologic tumors, we can develop more effective combinatory treatment strategies that could overcome resistance to current ICB therapies. [ABSTRACT FROM AUTHOR]