CNR2 and neuroblastoma: Following these efforts, a high-throughput zebrafish xenograft assay of neuroblastoma was performed to confirm cannabinoid receptor 2 (CNR2) and Mitogen-activated protein kinase 8 (MAPK8) as promising candidates for the treatment of high-risk NB and to identify the drugs GW405833 and AS601245 as the most effective and well-tolerated CNR2 and MAPK8 targeted compounds to inhibit the growth of xenografts in zebrafish [96].