Injac Rade, Boskovic Marija, Perse Martina, Koprivec-Furlan Eva, Cerar Anton, Djordjevic Aleksandar, Strukelj Borut
Faculty of Pharmacy, Institute of Pharmaceutical Biology, University of Ljubljana, Askerceva 7, 1000 Ljubljana, Slovenia.
Pharmacol Rep. 2008 Sep-Oct;60(5):742-9.
Oxidative stress has an important role in the pathogenesis of doxorubicin (DOX)-induced nephrotoxicity. The aim of this study was to investigate the nephroprotective effects of fullerenol (FLR), an antioxidant agent, on DOX-induced nephrotoxicity. The investigation was carried out on adult female Sprague Dawley outbred rats with chemically induced breast cancer (1-methyl-1-nitrosourea; 50 mg/kg; ip). Rats were divided into the following groups: control healthy, control cancer, DOX alone (8 mg/kg, ip, cancer), DOX plus FLR as a pre-treatment (8 mg/kg and 100 mg/kg, respectively, ip, cancer), and FLR alone (100 mg/kg, ip, cancer). At the end of the 2nd day after drug administration, blood and kidney tissues were taken for analysis. The activity of lactate dehydrogenase and alpha-hydroxybutyrate dehydrogenase as serum enzymes, as well as level of malondialdehyde, glutathione, glutathione peroxidase, glutathione reductases, catalase and superoxide dismutase, were determined. DOX caused nephrotoxicity, but FLR pre-treatment prevented oxidative stress, lipid peroxidation and the disbalance of GSH/GSSG levels in kidney tissue caused by DOX. Our results confirm satisfactory nephroprotective efficacy of FLR in the acute phase of toxicity and encourage further studies regarding its use as a potential nephroprotector.
氧化应激在阿霉素(DOX)诱导的肾毒性发病机制中起重要作用。本研究旨在探讨抗氧化剂富勒醇(FLR)对DOX诱导的肾毒性的肾保护作用。研究以化学诱导乳腺癌(1-甲基-1-亚硝基脲;50mg/kg;腹腔注射)的成年雌性斯普拉格-道利远交系大鼠为对象。大鼠分为以下几组:健康对照、癌症对照、单独使用DOX组(8mg/kg,腹腔注射,癌症组)、DOX加FLR预处理组(分别为8mg/kg和100mg/kg,腹腔注射,癌症组)以及单独使用FLR组(100mg/kg,腹腔注射,癌症组)。给药后第2天结束时,采集血液和肾脏组织进行分析。测定了血清酶乳酸脱氢酶和α-羟丁酸脱氢酶的活性,以及丙二醛、谷胱甘肽、谷胱甘肽过氧化物酶、谷胱甘肽还原酶、过氧化氢酶和超氧化物歧化酶的水平。DOX导致了肾毒性,但FLR预处理可预防DOX引起的肾组织氧化应激、脂质过氧化以及GSH/GSSG水平失衡。我们的结果证实了FLR在毒性急性期具有令人满意的肾保护效果,并鼓励进一步研究其作为潜在肾保护剂的用途。