Guanidino-containing drugs in cancer chemotherapy: biochemical and clinical pharmacology

被引:57
作者
Ekelund, S [1 ]
Nygren, P
Larsson, R
机构
[1] Univ Uppsala Hosp, Dept Clin Pharmacol, S-75185 Uppsala, Sweden
[2] Univ Uppsala Hosp, Dept Oncol, S-75185 Uppsala, Sweden
关键词
MIBG; MGBG; CHS; 828; guanidine compounds; pharmacology; cytotoxic activity;
D O I
10.1016/S0006-2952(01)00570-6
中图分类号
R9 [药学];
学科分类号
1007 ;
摘要
The pharmacology and clinical application of three guanidino-containing compounds are reviewed in this commentary with special focus on a new member of this group of drugs. CHS 828 [N-(6-(4-chlorophenoxy)hexyl)-N'-cyano-N" -4-pyridylguanidine]. m-Iodobenzylguanidine (MIBG) and methylglyoxal bis(guanylhydrazone) (MGBG) have been extensively studied, preclinically as well as clinically. and have established use as anticancer agents. MIBG has structural similarities to the neurotransmitter, norepinephrine, and MGBG is a structural analog of the natural polyamine spermidine. CHS 828 is a pyridyl cyanoguanidine newly recognized as having cytotoxic effects when screening antihypertensive compounds. Apart from having the guanidino groups in common, there are many differences between these drugs in both structure and their mechanisms of action. However, they all inhibit mitochondrial function, a seemingly unique feature among chemotherapeutic drugs. In vitro in various cell lines and primary cultures of patient tumor cells and in vivo in various rumor models, CHS 828 has cytotoxic properties unlike any of the standard cytotoxic drugs with which it has been compared. Among these are non-cross-resistance to standard drugs and pronounced activity in tumor models acknowledged to be highly drug-resistant. Similar to MIBG, CHS 828 induces an early increase in extracellular acidification, due to stimulation of the glycolytic flux. Furthermore, ATP levels decrease, and the syntheses of DNA and protein are shut off after approximately 30 hr of exposure, indicating active cell death. CHS 828 is now in early clinical trials, the results of which are eagerly awaited. (C) 2001 Elsevier Science Inc. All rights reserved.
引用
收藏
页码:1183 / 1193
页数:11
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