芦丁改善环磷酰胺诱导的Wistar大鼠氧化应激和炎症:NFκB/MAPK信号通路的作用
Rutin ameliorates cyclophosphamide induced oxidative stress and inflammation in Wistar rats: role of NFκB/MAPK pathway.
作者信息
Nafees Sana, Rashid Summya, Ali Nemat, Hasan Syed Kazim, Sultana Sarwat
机构信息
Molecular Carcinogenesis and Chemoprevention Division, Dept. of Medical Elementology and Toxicology, Faculty of Science, Jamia Hamdard (Hamdard University), Hamdard Nagar, New Delhi 110062, India.
Molecular Carcinogenesis and Chemoprevention Division, Dept. of Medical Elementology and Toxicology, Faculty of Science, Jamia Hamdard (Hamdard University), Hamdard Nagar, New Delhi 110062, India.
出版信息
Chem Biol Interact. 2015 Apr 25;231:98-107. doi: 10.1016/j.cbi.2015.02.021. Epub 2015 Mar 6.
Cyclophosphamide is a potent anticancer agent. However its clinical use is restricted because of its marked organ toxicity associated with increased oxidative stress and inflammation. The present study was designed to demonstrate the protective effects of rutin, a naturally occurring bioflavonoid against the hepatotoxicity induced by CP. Rats were subjected to oral pretreatment of rutin (50 and 100 mg/kg b wt) against hepatotoxicity induced by i.p. injection of CP (150 mg/kg b wt) and were sacrificed after 24 h. Hepatoprotective effects of rutin were associated with upregulation of antioxidant enzyme activities and down regulation of serum toxicity markers. Rutin was able to down regulate the levels of inflammatory markers like TNF-α, IL-6 and expressions of p38-MAPK, NFκB, i-NOS and COX-2. Histopathological changes further confirmed the biochemical and immunohistochemical results showing that CP caused significant structural damage to liver which were reversed by pretreatment of rutin. Therefore, our study revealed that rutin may be a promising modulator in attenuating CP induced oxidative stress, inflammation and hepatotoxicity via targeting NFκB and MAPK pathway.
环磷酰胺是一种强效抗癌剂。然而,由于其与氧化应激和炎症增加相关的显著器官毒性,其临床应用受到限制。本研究旨在证明芦丁(一种天然存在的生物黄酮)对环磷酰胺诱导的肝毒性的保护作用。对大鼠进行芦丁(50和100毫克/千克体重)口服预处理,以对抗腹腔注射环磷酰胺(150毫克/千克体重)诱导的肝毒性,并在24小时后处死。芦丁的肝保护作用与抗氧化酶活性上调和血清毒性标志物下调有关。芦丁能够下调炎症标志物如肿瘤坏死因子-α、白细胞介素-6的水平以及p38丝裂原活化蛋白激酶、核因子κB、诱导型一氧化氮合酶和环氧化酶-2的表达。组织病理学变化进一步证实了生化和免疫组化结果,表明环磷酰胺对肝脏造成了显著的结构损伤,而芦丁预处理可使其逆转。因此,我们的研究表明,芦丁可能是一种有前景的调节剂,通过靶向核因子κB和丝裂原活化蛋白激酶途径减轻环磷酰胺诱导的氧化应激、炎症和肝毒性。