427 Development of iPSC-derived cytotoxic CD8+ T-cells as the basis for innovative off-the-shelf cancer immunotherapies by Daniel Sommermeyer, Chloé Beuraud, Monika Braun, Michael Epstein, Philip Hublitz, Michael Esquerré, Audrey Holtzinger, Nadja Wagner, Riga Tawo, Florie Bertrand, Olivia Cypris, Pauline Barron, Stefanie Pfänder, Stephanie Sontag