An immunosuppressive tumor microenvironment is a major challenge for existing immunotherapies. A novel form of immunotherapy, known as peptide alarm therapy, has shown promise in activating the immune system within tumors by injecting viral peptides.
Using FACS analysis and peptide pools from peptides&elephants, they tested whether reactivation of the cytomegalovirus influences T cell immunity against Wilms tumor 1 - and thus against leukemia cells.