<p>Flow cytometry on human U-251 MG cells, canine GBM G06-A cells, and human T98G cells using MAb 1E10B9, <b><i>A.</i></b> Internalization of MAb 1E10B9 by G48a human GBM cells, <b><i>B.</i></b> Internalization of MAb 1E10B9 by U-251, G06-A, and T98G cells after 4-hr incubation, <b><i>C</i></b>.</p