Glioblastoma: U87MG, high-throughput screening by Image cytometry, Spheroid and Cell Viability Spheroid Size and Adherent Cell Confluence Measurement, Fluorescent Staining Celigo Image Cytometer, 3D tumor spheroid, spheroid size, spheroid viability, glioblastoma, high-throughput screening, image cytometry, Celigo, 17-AAG paclitaxel TMZ doxorubicin(DOX), MS-9384U