Combination chemotherapy potentiates 5-aminolevulic acid-mediated photodynamic therapy killing of patient-derived glioma stem-like cells in vitro
Abstract Background 5-aminolevulinic acid photodynamic therapy (5-ALA PDT) is a promising therapy for glioblastoma (GBM). 5-ALA induces tumor-selective accumulation of protoporphyrin IX (PPIX). Photoactivation of PPIX induces reactive oxygen species generation and tumor cell death. Glioma stem-like cells (GSC) are hypo...