Abstract:
:To investigate the effectiveness of EDL-291, a 6,7-dimethoxy-1-[4-(4-methoxypyridin-3-yl)benzyl]-1,2,3,4-tetrahydroisoquinoline dihydrochloride compound, in inhibiting the survival of glioblastoma in vitro and in vivo. Dose-response curves were generated to determine the EC50 in rat and human glioblastoma cell lines by treatment with different dilutions of EDL-291. To evaluate the architecture of the glioblastoma cells after treatment with EDL-291, the rat and human glioblastoma cells were stained with Mito Tracker Green FM. To determine whether autophagy was induced in EDL-291-treated glioblastoma cells, both rat and human glioblastoma cell lines were stained with acridine orange and light chain-3 immunoblots were performed. The efficacy of EDL-291 was monitored in vivo using a rat glioblastoma model. Rat glioblastoma cells were transplanted into an intracranial rat model, followed by infusions of saline, a low dose of EDL-291 (20 mg/kg for the first half hour, followed by 40 mg/kg EDL-291 in saline for 4 h), or a high dose of EDL-291 (60 mg/kg for the first half hour, followed by 90 mg/kg EDL-291 for 4 h). EDL-291 inhibits glioblastoma in vitro by destroying the mitochondria as shown with Mito Tracker Green FM. Acridine orange staining and light chain-3 immunoblots suggest that autophagy is induced when glioblastoma cells are treated with EDL-291. In vivo, a low dosage of EDL-291 is sufficient and effective in reducing glioblastoma tumor size. EDL-291 selectively induces cell death in rat and human glioblastoma cell lines by the induction of autophagy. EDL-291 exhibits antiglioblastoma effects both in vitro and in vivo.
journal_name
Anticancer Drugsjournal_title
Anti-cancer drugsauthors
Wang XD,Freeman NE,Patil R,Patil SA,Mitra S,Orr WE,Abner CW,Yates CR,Miller DD,Geisert EEdoi
10.1097/CAD.0b013e328351ee4fsubject
Has Abstractpub_date
2012-06-01 00:00:00pages
494-504issue
5eissn
0959-4973issn
1473-5741journal_volume
23pub_type
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journal_title:Anti-cancer drugs
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