Resumen
Although immunotherapy has given the highest rate of improvement in cancer treatment in recent years, there is an urgent need to further improve its efficacy. Numerous strategies aim to transform non-responsive, immunosuppressive tumours into sensitive, immunopermissive tumours. The modulation of the tumour microenvironment, and especially the tumour vasculature offers opportunities for improved sensitivity to immunotherapy. Modulation of tumour blood vessels can enhance tumour oxygenation and T cell infiltration. Additionally, maturation of tumour blood vessels is thought to be involved in the efficient delivery of therapeutic agents. This review compiles the current strategies of vascular modulation to improve the efficacy of different immunotherapies: PD-1/PD-L1 and CTLA-4 antibodies, CAR T cells and cancer vaccines.