RAC1 and glioblastoma: Figure 1 shows the cytotoxicity of RAC1 – RAC7 on astrocytes and HTB-12 astrocytoma cell lines at 48hrs. Figure 2 exhibits the cytotoxicity of RAC1 – RAC7 on astrocytes and HTB-12 astrocytoma cell lines at 72 hours. Figure 3 shows the cytotoxicity of RAC6 on human Glioblastoma Multiforme D54 cell lines after 48 hours of treatment. The assay was carried out through LDH Assay. RAC6 also induced apoptosis in the treated cells as evidenced by increased green fluorescently labeled cells (hallmark of apoptotic functional assay) as compared to vehicular control (DMSO treated) cells (Figures 4, 5).