Challenges of Using IFNγ in Clinical Settings.

Cytokines in the tumor microenvironment can affect tumor growth, progression, and response to therapy, making them compelling therapeutic agents and targets. IFNγ is a pleiotropic cytokine predominantly secreted by immune cells that binds to its receptors IFNGR1 and IFNGR2 on target cells. Multiple clinical trials have investigated the efficacy of IFNγ in combination with other therapies for treating patients with cancer and have shown varying results. Here, we summarize the known effects of IFNγ signaling on tumor cells and explore the possibility of its use in clinical settings.