Effects, in an in-vivo model system, of 1,2,3,4-tetrahydroisoquinoline on glioma.

Abstract:

:The effects of 1-(biphenyl-4-ylmethyl)-1,2,3,4-tetrahydroisoquinoline-6,7-diol (EDL-155) on the growth of glioma was tested in vitro and in vivo. Normal cultured rat astrocytes and C6 rat glioma were used as a differential screen to test the effects of EDL-155. The compound was preferentially cytotoxic for C6 glioma (EC50=1.5 micromol/l) relative to cultured neonatal astrocytes (EC50=27.4 micromol/l). When compared with a standard chemotherapeutic agent, carmustine (1,3-bis[2-chloroethyl]-1-nitrosourea), or temozolomide, EDL-155 was more selective and more potent in our differential tissue culture assay. The effect of EDL-155 was also tested in an animal model in which C6 glioma was transplanted into the brains of Sprague-Dawley rats. EDL-155 was delivered directly onto the tumor by an osmotic minipump directly into the brain or by intraperitoneal injection. Animals treated with EDL-155 had significantly smaller tumors than did control animals treated with carrier solution. We observed anatomical changes in cultured glioma cells treated with EDL-155 that were consistent with selective destruction of mitochondria and the induction of autophagy. These changes were not observed in normal astrocytes cultured from rat pups. The selective killing of glioma in tissue culture and in the rat brain models indicates that EDL-155 has potential therapeutic value in treating this type of brain cancer.

journal_name

Anticancer Drugs

journal_title

Anti-cancer drugs

authors

Kang GS,Wang XD,Mohler ML,Kirichenko OV,Patil R,Orr WE,Miller DD,Geisert EE

doi

10.1097/CAD.0b013e32830d5887

subject

Has Abstract

pub_date

2008-10-01 00:00:00

pages

859-70

issue

9

eissn

0959-4973

issn

1473-5741

pii

00001813-200810000-00003

journal_volume

19

pub_type

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