Researchers from Cima and the Clínica Universidad de Navarra, together with the international cooperative group Diffuse Midline Glioma (DMG-ACT), have confirmed that blocking an immune checkpoint molecule reduces the tumor and prolongs survival in animal models of the most aggressive childhood cancer. This research, carried out at the Cancer Center Clínica Universidad de Navarra, shows that inhibition of TIM-3 promotes the immune memory of diffuse intrinsic stem glioma (DIPG) and improves the prognosis of the disease.