Abstract
Novel substituted triptycene bisquinones and 1, 4-anthracenediones were synthesized and screened for their anti-cancer activities. A number of analogs were synthesized utilizing various synthetic transformations and found to elicit interesting antitumor effects. Analogs included water-soluble pro-drugs and ammonium salts. These potent antitumor drugs are DNA topoisomerase inhibitors that induce DNA strand breaks, inhibit DNA, RNA and protein syntheses and reduce tumor cell proliferation in the nanomolar range in vitro. They induce cytochrome c release, caspase-9, -3 and -8 activities, poly(ADP)-ribose polymerase-1 (PARP) cleavage, and internucleosomal DNA fragmentation by a mechanism which involves caspase-2 activation but not Fas signaling. Moreover, these drugs remain effective in multidrug-resistant tumor cells and have the advantage of blocking nucleoside transport and inducing a rapid loss of mitochondrial transmembrane potential. Based on their effects in tumor cells and isolated mitochondria, it is hypothesized that these drugs might, directly and indirectly, target components of the permeability transition pore to induce mitochondrial permeability transition and the release of proapoptotic factors. This review provides a summary of synthetic efforts and mechanistic endeavor.
Keywords: Triptycene bisquinones, 4-anthracenediones, antitumor agents, mitochondrial permeability transition, DNA topoisomerase inhibitors, caspase activities, poly(ADP-ribose) polymerase-1 cleavage, pro-drugs
Anti-Cancer Agents in Medicinal Chemistry
Title: Syntheses, Molecular Targets and Antitumor Activities of Novel Triptycene Bisquinones and 1,4-Anthracenedione Analogs
Volume: 6 Issue: 4
Author(s): Duy H. Hua, Kaiyan Lou, Srinivas K. Battina, Huiping Zhao, Elisabeth M Perchellet, Yang Wang and Jean-Pierre H. Perchellet
Affiliation:
Keywords: Triptycene bisquinones, 4-anthracenediones, antitumor agents, mitochondrial permeability transition, DNA topoisomerase inhibitors, caspase activities, poly(ADP-ribose) polymerase-1 cleavage, pro-drugs
Abstract: Novel substituted triptycene bisquinones and 1, 4-anthracenediones were synthesized and screened for their anti-cancer activities. A number of analogs were synthesized utilizing various synthetic transformations and found to elicit interesting antitumor effects. Analogs included water-soluble pro-drugs and ammonium salts. These potent antitumor drugs are DNA topoisomerase inhibitors that induce DNA strand breaks, inhibit DNA, RNA and protein syntheses and reduce tumor cell proliferation in the nanomolar range in vitro. They induce cytochrome c release, caspase-9, -3 and -8 activities, poly(ADP)-ribose polymerase-1 (PARP) cleavage, and internucleosomal DNA fragmentation by a mechanism which involves caspase-2 activation but not Fas signaling. Moreover, these drugs remain effective in multidrug-resistant tumor cells and have the advantage of blocking nucleoside transport and inducing a rapid loss of mitochondrial transmembrane potential. Based on their effects in tumor cells and isolated mitochondria, it is hypothesized that these drugs might, directly and indirectly, target components of the permeability transition pore to induce mitochondrial permeability transition and the release of proapoptotic factors. This review provides a summary of synthetic efforts and mechanistic endeavor.
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Cite this article as:
Hua H. Duy, Lou Kaiyan, Battina K. Srinivas, Zhao Huiping, Perchellet M Elisabeth, Wang Yang and Perchellet H. Jean-Pierre, Syntheses, Molecular Targets and Antitumor Activities of Novel Triptycene Bisquinones and 1,4-Anthracenedione Analogs, Anti-Cancer Agents in Medicinal Chemistry 2006; 6 (4) . https://dx.doi.org/10.2174/187152006777698141
DOI https://dx.doi.org/10.2174/187152006777698141 |
Print ISSN 1871-5206 |
Publisher Name Bentham Science Publisher |
Online ISSN 1875-5992 |
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