1419 A novel stem cell-based platform for delivery and potentiation of oncolytic virotherapies by Yuchen Wang, Ivelina Minev, Forrest Neuharth, Ashley Alamillo, Thomas Herrmann, Barbara Härtl, Antonio F Santidrian, Duong H Nguyen, Laura E Schneider, Daniela Kleinholz, Stephanie Songco, Kristina Loy, Emma Kedl, Yunyi Kang, Evan Cassavaugh, Kamen Grozev, Amish A Patel, Boris R Minev