NGFR and glioblastoma: In addition, it will be of interestto pursue in vivo studies to investigate the possibilityto use p-HTMI as a complementary tool to detect GSCs ex vivo in biopsies and in fluorescence-guided surgical resection of GBM.The CD271 antibody stains for cells derived from and present in variousorgans and is significantly less cell-specific than p-HTMI, and asany antibody, it only provides an indirect detection of the cells.Nevertheless, our results from co-staining with CD271 yet strengthenthe verification of the specificity and versatility of p-HTMI.