Abstract
Quinone moieties are present in many drugs such as anthracyclines, daunorubicin, doxorubicin, mitomycin, mitoxantrones and saintopin, which are used clinically in the therapy of solid cancers. The cytotoxic effects of these quinones are mainly due to the following two factors: (i) inhibition of DNA topoisomerase-II and, (ii) formation of semiquinone radical that can transfer an electron to oxygen to produce super oxide, which is catalyzed by flavoenzymes such as NADPH-cytochrome-P-450 reductase. Both semiquinone and super oxide of quinones can generate the hydroxyl radical, which is the cause of DNA strand breaks. 1,4-naphthoquinone contains two quinone groups that have the ability to accept one or two electrons to form the corresponding radical anion or di-anion species. It is probably dependent on the quinone redox cycling that yields "reactive oxygen species" (ROS) as well as arylation reactions, which is common to quinones for biological relevance. In the present review, an attempt has been made to collect the cytotoxicity data on different series of 1,4-naphthoquinones against four different cancer cell lines that are L1210, A549, SNU-1, and K562, which were acquired by using identical method, and has been discussed in terms of QSAR (quantitative structure-activity relationships) to understand the chemical-biological interactions. QSAR results have shown that the cytotoxic activities of 1,4- naphthoquinones depend largely on their hydrophobicity.
Keywords: Hydrophobicity, Molar refractivity, 1,4-Naphthoquinones, Quantitative structure-activity relationships
Anti-Cancer Agents in Medicinal Chemistry
Title: Anti-Cancer Activities of 1,4-Naphthoquinones: A QSAR Study
Volume: 6 Issue: 5
Author(s): Rajeshwar P. Verma
Affiliation:
Keywords: Hydrophobicity, Molar refractivity, 1,4-Naphthoquinones, Quantitative structure-activity relationships
Abstract: Quinone moieties are present in many drugs such as anthracyclines, daunorubicin, doxorubicin, mitomycin, mitoxantrones and saintopin, which are used clinically in the therapy of solid cancers. The cytotoxic effects of these quinones are mainly due to the following two factors: (i) inhibition of DNA topoisomerase-II and, (ii) formation of semiquinone radical that can transfer an electron to oxygen to produce super oxide, which is catalyzed by flavoenzymes such as NADPH-cytochrome-P-450 reductase. Both semiquinone and super oxide of quinones can generate the hydroxyl radical, which is the cause of DNA strand breaks. 1,4-naphthoquinone contains two quinone groups that have the ability to accept one or two electrons to form the corresponding radical anion or di-anion species. It is probably dependent on the quinone redox cycling that yields "reactive oxygen species" (ROS) as well as arylation reactions, which is common to quinones for biological relevance. In the present review, an attempt has been made to collect the cytotoxicity data on different series of 1,4-naphthoquinones against four different cancer cell lines that are L1210, A549, SNU-1, and K562, which were acquired by using identical method, and has been discussed in terms of QSAR (quantitative structure-activity relationships) to understand the chemical-biological interactions. QSAR results have shown that the cytotoxic activities of 1,4- naphthoquinones depend largely on their hydrophobicity.
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Cite this article as:
Verma P. Rajeshwar, Anti-Cancer Activities of 1,4-Naphthoquinones: A QSAR Study, Anti-Cancer Agents in Medicinal Chemistry 2006; 6 (5) . https://dx.doi.org/10.2174/187152006778226512
DOI https://dx.doi.org/10.2174/187152006778226512 |
Print ISSN 1871-5206 |
Publisher Name Bentham Science Publisher |
Online ISSN 1875-5992 |
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