Intratumoral immune cell manipulations as a strategy to enhance cancer vaccine efficiency.

Abstract

Shortcomings in cancer vaccine development are attributable to weak and transient anti-tumor cellular responses in the tumor microenvironment. This restriction of efficacy may be due to an intratumoral immunosuppressive milieu, consisting of regulatory T cells, M2 macrophages, and myeloid derived suppressor cells. Here, we analyze recent advances and propose future directions in the modulation of cellular state propensities combined with cancer vaccines.