CD276 and medulloblastoma: In medulloblastoma (MB) cells, through F-actin visualization and angiogenesis tube formation assays, B7-H3-overexpressing MB cells were found to significantly promote the angiogenic ability of co-cultured HUVECs, which can be attenuated by miR-29, and in vivo chick chorioallantoic membrane angiogenesis assays demonstrated similar results [114].