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Heath
Alternative Medicine
Tannic acid ameliorates doxorubicin-induced cardiotoxicity and potentiates its anti-cancer activity.
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<blockquote data-quote="greenmedinfo" data-source="post: 5927"><p>PMID: Toxicol Appl Pharmacol. 2011 Mar 15 ;251(3):191-200. Epub 2010 Dec 29. PMID: 21194538 Abstract Title: Tannic acid ameliorates doxorubicin-induced cardiotoxicity and potentiates its anti-cancer activity: potential role of tannins in cancer chemotherapy. Abstract: Doxorubicin, an anthracycline antibiotic, is widely used in the treatment of various solid tumors including breast cancer. However, its use is limited due to a variety of toxicities including cardiotoxicity. The present study aimed to evaluate the effect of tannic acid, a PARG/PARP inhibitor and an antioxidant, on doxorubicin-induced cardiotoxicity in H9c2 embryonic rat heart myoblasts and its anti-cancer activity in MDA-MB-231 human breast cancer cells as well as in DMBA-induced mammary tumor animals. Doxorubicin-induced cardiotoxicity was assessed by measurement of heart weight, plasma LDH level and histopathology. Bcl-2, Bax, PARP-1 and p53 expression were examined by western blotting. Our results show that tannic acid prevents activation of PARP-1, reduces Bax and increases Bcl-2 expression in H9c2 cells, thus, preventing doxorubicin-induced cell death. Further, it reduces the cell viability of MDA-MB-231 breast cancer cells, increases p53 expression in mammary tumors and shows maximum tumor volume reduction, suggesting that tannic acid potentiates the anti-cancer activity of doxorubicin. To the best of our knowledge, this is the first report which shows that tannic acid ameliorates doxorubicin-induced cardiotoxicity and potentiates its anti-cancer activity both in vitro (H9c2 and MDA-MB-231 cells) as well as in in vivo model of DMBA-induced mammary tumor animals. </p><p><a href="https://www.greenmedinfo.com/article/tannic-acid-ameliorates-doxorubicin-induced-cardiotoxicity-and-potentiates-its" target="_blank">read more</a></p></blockquote><p></p>
[QUOTE="greenmedinfo, post: 5927"] PMID: Toxicol Appl Pharmacol. 2011 Mar 15 ;251(3):191-200. Epub 2010 Dec 29. PMID: 21194538 Abstract Title: Tannic acid ameliorates doxorubicin-induced cardiotoxicity and potentiates its anti-cancer activity: potential role of tannins in cancer chemotherapy. Abstract: Doxorubicin, an anthracycline antibiotic, is widely used in the treatment of various solid tumors including breast cancer. However, its use is limited due to a variety of toxicities including cardiotoxicity. The present study aimed to evaluate the effect of tannic acid, a PARG/PARP inhibitor and an antioxidant, on doxorubicin-induced cardiotoxicity in H9c2 embryonic rat heart myoblasts and its anti-cancer activity in MDA-MB-231 human breast cancer cells as well as in DMBA-induced mammary tumor animals. Doxorubicin-induced cardiotoxicity was assessed by measurement of heart weight, plasma LDH level and histopathology. Bcl-2, Bax, PARP-1 and p53 expression were examined by western blotting. Our results show that tannic acid prevents activation of PARP-1, reduces Bax and increases Bcl-2 expression in H9c2 cells, thus, preventing doxorubicin-induced cell death. Further, it reduces the cell viability of MDA-MB-231 breast cancer cells, increases p53 expression in mammary tumors and shows maximum tumor volume reduction, suggesting that tannic acid potentiates the anti-cancer activity of doxorubicin. To the best of our knowledge, this is the first report which shows that tannic acid ameliorates doxorubicin-induced cardiotoxicity and potentiates its anti-cancer activity both in vitro (H9c2 and MDA-MB-231 cells) as well as in in vivo model of DMBA-induced mammary tumor animals. [URL='https://www.greenmedinfo.com/article/tannic-acid-ameliorates-doxorubicin-induced-cardiotoxicity-and-potentiates-its']read more[/URL] [/QUOTE]
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Tannic acid ameliorates doxorubicin-induced cardiotoxicity and potentiates its anti-cancer activity.
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