Abstract | BACKGROUND: Considering the role of oxidative stress in carcinogenesis, we investigated the effect of synthetic antioxidant Pirolin (3-carbamoyl-2,2,5,5-tetramethylpyrroline-1-oxyl) on breast cancer progression. Since the anticancer drugs may cause cardiotoxicity due to oxidative stress in the heart muscle, we also evaluated Pirolin performance in heart tissue and compared its effect with that of the natural dietary flavonoid quercetin. METHODS: RESULTS: The median number of tumors and their volume, at the end of the study, were considerably smaller in both antioxidant-treated groups. We found a better antioxidative performance of quercetin in the heart, since a restoration of the GSH pool and decreased amount of hydroperoxides were observed. Antioxidants did not prevent cardiomyocytes from apoptosis. CONCLUSION: The attenuation of tumor progression by Pirolin was comparable with the action of quercetin. No negative changes were observed in the heart of animals after Pirolin treatment. Thus, its use in targeting deregulated redox pathways should be further studied.
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Authors | Sabina Tabaczar, Katarzyna Domeradzka, Jan Czepas, Joanna Piasecka-Zelga, Jan Stetkiewicz, Krzysztof Gwoździński, Aneta Koceva-Chyła |
Journal | Pharmacological reports : PR
(Pharmacol Rep)
Vol. 67
Issue 3
Pg. 527-34
(Jun 2015)
ISSN: 2299-5684 [Electronic] Switzerland |
PMID | 25933965
(Publication Type: Comparative Study, Journal Article, Research Support, Non-U.S. Gov't)
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Copyright | Copyright © 2015 Institute of Pharmacology, Polish Academy of Sciences. Published by Elsevier Urban & Partner Sp. z o.o. All rights reserved. |
Chemical References |
- 3-(2,6-bis(4-fluorophenyl)-3-methylpiperidin-4-ylideneamino)-2-thioxoimidazolidin-4-one on 7,12-dimethylbenz(a)anthracene
- 3-carbamoyl-2,2,5,5-tetramethylpyrroline-1-oxyl
- Anthracenes
- Antineoplastic Agents
- Cyclic N-Oxides
- Nitrogen Oxides
- Piperidines
- Quercetin
- nitroxyl
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Topics |
- Animals
- Anthracenes
(toxicity)
- Antineoplastic Agents
(therapeutic use)
- Cyclic N-Oxides
(therapeutic use)
- Female
- Mammary Neoplasms, Experimental
(chemically induced, drug therapy, pathology)
- Nitrogen Oxides
(therapeutic use)
- Piperidines
(toxicity)
- Quercetin
(therapeutic use)
- Rats
- Rats, Sprague-Dawley
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