8:45 AM. 351. Synergistic In Vivo Therapy Using Bioengineered microRNA and Chemotherapy for High-Risk Neuroblastoma.Yu-Rim Ahn, Ph.D.1, Yunyoung Lee, Ph.D.2, Toola Alkhazal, B.S.2, Kathleen Doyle, M.D.2, Meijuan Tu, Ph.D.2, Aming Yu, Ph.D.3, Jinhwan Kim, Ph.D.2, Erin Brown, M.D.2 1Organization* UC Davis Health, University of California, Davis, 2UC Davis Health, University of California, Davis, 3UC Davis Health,University of California, Davis