Journal
EUROPEAN JOURNAL OF MEDICINAL CHEMISTRY
Volume 114, Issue -, Pages 24-32Publisher
ELSEVIER FRANCE-EDITIONS SCIENTIFIQUES MEDICALES ELSEVIER
DOI: 10.1016/j.ejmech.2016.02.045
Keywords
Kaempferol; Cellular antioxidant ability; Anti-hemolytic activity; Reactive oxygen species; Antiproliferative activity; Apoptosis
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Funding
- Department of Science and Technology of Guangdong Province [2013B09080009]
- Bureau of Science, Technology and Information of Guangzhou City [2014Y2-00192]
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The protective effects of kaempferol against reactive oxygen species (ROS)-induced hemolysis and its antiproliferative activity on human cancer cells were evaluated in this study. Kaempferol exhibited strong cellular antioxidant ability (CAA) with a CAA value of 59.80 +/- 0.379 mu M of quercetin (QE)/100 mu M (EC50 = 7.74 +/- 0.049 mu M). Pretreatment with kaempferol significantly attenuated the ROS-induced hemolysis of human erythrocyte (87.4% hemolysis suppressed at 100 mu g/mL) and reduced the accumulation of toxic lipid peroxidation product malondialdehyde (MDA). The anti-hemolytic activity of kaempferol was mainly through scavenging excessive ROS and preserving the intrinsic antioxidant enzymes (superoxide dismutase, SOD; catalase, CAT; and glutathione peroxidase, GPx) activities in normal levels. Additionally, kaempferol showed significant antiproliferative activity on a panel of human cancer cell lines including human breast carcinoma (MCF-7) cells, human stomach carcinoma (SGC-7901) cells, human cervical carcinoma (Hela) cells and human lung carcinoma (A549) cells. Kaemperol induced apoptosis of MCF-7 cells accompanied with nuclear condensation and mitochondria dysfunction. (C) 2016 Elsevier Masson SAS. All rights reserved.
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