<abstract xmlns="http://www.w3.org/1999/xhtml"> Catechins may influence both desirable and undesirable effects of many drugs. In this study, the in vitro effect of (+)-catechin, (-)-epicatechin, (-)-epigallocatechin, (-)-epicatechin gallate, and (-)-epigallocatechin gallate (EGCG) on the efficacy of anticancer drug doxorubicin (DOX) was studied in HCT-8 cancer cells. Rat hepatocytes were used to study the influence of EGCG on DOX hepatotoxicity. Cell proliferation and viability were studied by 3-[4,5-dimethylthiazol- 2-yl]-2,5-diphenyl tetrazolium bromide and neutral red uptake test assays. Formation of reactive oxygen species (ROS) was determined using the dichlorofluorescein assay. All of the studied catechins (1-25 μmol L-1) had no effect on the proliferation of intestinal cancer cells and did not affect the antiproliferative effect of DOX (1-8 μmol L-1) in these cells. Moreover, EGCG at 25 μmol L-1 increased the viability of isolated hepatocytes and significantly protected these cells against DOX-induced toxicity and ROS production. Consumption of EGCG during DOX therapy seems to be safe and beneficial, since EGCG does not decrease DOX anticancer efficacy and could ameliorate DOX hepatotoxicity</abstract>

Catechins may influence both desirable and undesirable effects of many drugs. In this study, the in vitro effect of (+)-catechin, (-)-epicatechin, (-)-epigallocatechin, (-)-epicatechin gallate, and (-)-epigallocatechin gallate (EGCG) on the efficacy of anticancer drug doxorubicin (DOX) was studied in HCT-8 cancer cells. Rat hepatocytes were used to study the influence of EGCG on DOX hepatotoxicity. Cell proliferation and viability were studied by 3-[4,5-dimethylthiazol- 2-yl]-2,5-diphenyl tetrazolium bromide and neutral red uptake test assays. Formation of reactive oxygen species (ROS) was determined using the dichlorofluorescein assay. All of the studied catechins (1-25 μmol L-1) had no effect on the proliferation of intestinal cancer cells and did not affect the antiproliferative effect of DOX (1-8 μmol L-1) in these cells. Moreover, EGCG at 25 μmol L-1 increased the viability of isolated hepatocytes and significantly protected these cells against DOX-induced toxicity and ROS production. Consumption of EGCG during DOX therapy seems to be safe and beneficial, since EGCG does not decrease DOX anticancer efficacy and could ameliorate DOX hepatotoxicity

Effect of selected catechins on doxorubicin antiproliferative efficacy and hepatotoxicity in vitro

Department of Biochemical Sciences Charles University in Prague, Faculty of Pharmacy in Hradec Králové CZ-500 05 Hradec Králové Czech Republic

Acta Pharmaceutica

This article is distributed under the terms of the Creative Commons Attribution Non-Commercial License, which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited.

Catechins may influence both desirable and undesirable effects of many drugs. In this study, the in vitro effect of (+)-catechin, (-)-epicatechin,...

Effect of selected catechins on doxorubicin antiproliferative efficacy and hepatotoxicity in vitro

Publié en ligne: 06 juin 2014

Pages: 199 - 209

Accepté: 10 févr. 2014

DOI: https://doi.org/10.2478/acph-2014-0018

Mots clés
epigallocatechin gallate, chemoprevention, HCT- -8 cells, hepatocytes, doxorubicin

© by Iva Boušová

This article is distributed under the terms of the Creative Commons Attribution Non-Commercial License, which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited.

Effect of selected catechins on doxorubicin antiproliferative efficacy and hepatotoxicity in vitro

Publié en ligne: 06 juin 2014

Pages: 199 - 209

Accepté: 10 févr. 2014

DOI: https://doi.org/10.2478/acph-2014-0018

Mots clésepigallocatechin gallate, chemoprevention, HCT- -8 cells, hepatocytes, doxorubicin

© by Iva Boušová

This article is distributed under the terms of the Creative Commons Attribution Non-Commercial License, which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited.

Mots clés
epigallocatechin gallate, chemoprevention, HCT- -8 cells, hepatocytes, doxorubicin