As shown in Figure 1A, databases E-GEOD-73753 and E-MTAB-3949 show miR-9-1, miR-9-2., miR-9-3, S1P1, S1P2, and S1P3 levels in Shh-medulloblastoma ECs, Wnt-medulloblastoma ECs, and ECs from angiogenic glioblastoma xenograft. Here, S1PR1 is linked to medulloblastoma.