FRMD6 and glioblastoma: To assess the effect of FRMD6 on the GBM cells, we transduced U87MG and U251 cells that express little or a detectable level of endogenous FRMD6 (Figure 1A), respectively, with retroviruses carrying empty retroviral expression vector (U87MG/U251-control) or FRMD6 expression construct (U87MG/U251-FRMD6).