title: In vitro sensitivity testing of minimally passaged and uncultured gliomas with TRAIL and/or chemotherapy drugs.
abstract: TRAIL/Apo-2L has shown promise as an anti-glioma drug, based on investigations of TRAIL sensitivity in established glioma cell lines, but it is not known how accurately TRAIL signalling pathways of glioma cells in vivo are reproduced in these cell lines in vitro. To replicate as closely as possible the in vivo behaviour of malignant glioma cells, 17 early passage glioma cell lines and 5 freshly resected gliomas were exposed to TRAIL-based agents and/or chemotherapeutic drugs. Normal human hepatocytes and astrocytes and established glioma cell lines were also tested. Cross-linked TRAIL, but not soluble TRAIL, killed both normal cell types and cells from three tumours. Cells from only one glioma were killed by soluble TRAIL, although only inefficiently. High concentrations of cisplatin were lethal to glioma cells, hepatocytes and astrocytes. Isolated combinations of TRAIL and chemotherapy drugs were more toxic to particular gliomas than normal cells, but no combination was generally selective for glioma cells. This study highlights the widespread resistance of glioma cells to TRAIL-based agents, but suggests that a minority of high-grade glioma patients may benefit from particular combinations of TRAIL and chemotherapy drugs. In vitro sensitivity assays may help identify effective drug combinations for individual glioma patients.
authors.affiliation: Children's Cancer Centre, Murdoch Children's Research Institute, Royal Children's Hospital, Parkville, Victoria 3052, Australia.
authors.forename: D M
authors.initials: DM
authors.lastname: Ashley
authors.forename: C D
authors.initials: CD
authors.lastname: Riffkin
authors.forename: M M
authors.initials: MM
authors.lastname: Lovric
authors.forename: T
authors.initials: T
authors.lastname: Mikeska
authors.forename: A
authors.initials: A
authors.lastname: Dobrovic
authors.forename: J A
authors.initials: JA
authors.lastname: Maxwell
authors.forename: H S
authors.initials: HS
authors.lastname: Friedman
authors.forename: K J
authors.initials: KJ
authors.lastname: Drummond
authors.forename: A H
authors.initials: AH
authors.lastname: Kaye
authors.forename: H K
authors.initials: HK
authors.lastname: Gan
authors.forename: T G
authors.initials: TG
authors.lastname: Johns
authors.forename: C J
authors.initials: CJ
authors.lastname: Hawkins
mesh_terms: D000328:Adult; D000368:Aged; D000970:Antineoplastic Agents / Q000008:administration & dosage / Q000494:pharmacology*; D000971:Antineoplastic Combined Chemotherapy Protocols / Q000494:pharmacology*; D001253:Astrocytes / Q000187:drug effects; D016190:Carboplatin / Q000008:administration & dosage; D045744:Cell Line, Tumor; D002945:Cisplatin / Q000008:administration & dosage; D003606:Dacarbazine / Q000008:administration & dosage / Q000031:analogs & derivatives; D004354:Drug Screening Assays, Antitumor; D005047:Etoposide / Q000008:administration & dosage; D005260:Female; D005909:Glioblastoma / Q000188:drug therapy / Q000473:pathology; D005910:Glioma / Q000188:drug therapy* / Q000473:pathology; D022781:Hepatocytes / Q000187:drug effects; D006801:Humans; D008130:Lomustine / Q000008:administration & dosage; D008297:Male; D008562:Membrane Glycoproteins / Q000008:administration & dosage; D008875:Middle Aged; D011344:Procarbazine / Q000008:administration & dosage; D011993:Recombinant Fusion Proteins / Q000008:administration & dosage; D053221:TNF-Related Apoptosis-Inducing Ligand / Q000008:administration & dosage / Q000494:pharmacology*; D000077204:Temozolomide; D014409:Tumor Necrosis Factor-alpha / Q000008:administration & dosage; D014750:Vincristine / Q000008:administration & dosage
chemical_list: D000970:Antineoplastic Agents; C448905:LZ-TRAIL protein, recombinant; D008562:Membrane Glycoproteins; D011993:Recombinant Fusion Proteins; D053221:TNF-Related Apoptosis-Inducing Ligand; D014409:Tumor Necrosis Factor-alpha; D011344:Procarbazine; D014750:Vincristine; D005047:Etoposide; D008130:Lomustine; D003606:Dacarbazine; D016190:Carboplatin; D002945:Cisplatin; D000077204:Temozolomide