An IgE antibody recognising Folate Receptor-alpha has been tested in clinical trials for ovarian cancer and preclinical studies show macrophage involvement in the anti-tumoural functions of IgE. Here the authors demonstrate that IgE induces proinflammatory activation of ovarian cancer patient macrophages, which reverses their immunosuppressive induction of Treg cells and promotes CD8+ T cell function.
- Gabriel Osborn
- Jacobo López-Abente
- Sophia N. Karagiannis
