Suppr超能文献

全反式维甲酸改善阿霉素诱导的心脏毒性:通过 caspase-3 和 p53 表达下调减轻氧化应激、炎症和细胞凋亡的体内潜在作用。

All-trans-retinoic acid ameliorates doxorubicin-induced cardiotoxicity: in vivo potential involvement of oxidative stress, inflammation, and apoptosis via caspase-3 and p53 down-expression.

机构信息

Department of Pathology, Faculty of Veterinary Medicine, Alexandria University, Edfina, 22758, Egypt.

Department of Forensic Medicine and Toxicology, Faculty of Veterinary Medicine, Damanhour University, Damanhour, 22511, Egypt.

出版信息

Naunyn Schmiedebergs Arch Pharmacol. 2018 Jan;391(1):59-70. doi: 10.1007/s00210-017-1437-5. Epub 2017 Oct 30.

Abstract

The present study aimed to investigate the potential protective effect of all-trans-retinoic acid (ATRA, a natural derivative of vitamin A) against doxorubicin (DOX)-induced in vivo cardiac toxicity and its underlying mechanisms. Forty male albino rats were allocated into control, ATRA (0.5 mg/kg bwt, intraperitoneally daily), DOX (2.5 mg/kg bwt, intraperitoneally twice weekly for 3 weeks), and DOX + ATRA groups. Serum lactate dehydrogenase (LDH), creatine kinase (CK), creatine kinase-cardiac type (CK-MB), troponin I, tumor necrosis factor-alpha (TNF-α), and interleukin-6 (IL-6) were measured. In addition, cardiac glutathione (GSH), glutathione peroxidase (GSH-Px), superoxide dismutase (SOD) and catalase (CAT), and malondialdehyde (MDA) were determined. Cardiac tissues were examined for histopathologic changes and immunoexpression of pro-apoptotic caspase 3 and tumor-suppressor p53 proteins. DOX caused severe myocardial damage; degenerative and necrotic changes and worsened cardiac function biomarkers; and elevated serum LDH, CK, CK-MB, and troponin I. In addition, DOX inhibited cardiac antioxidative enzymes (GSH, GSH-Px, SOD, CAT) activities and enhanced MDA level. DOX increased serum proinflammatory cytokines (TNF-α, IL-6) and area percent of caspase 3 and p53 immunoexpression in heart tissues. Pretreatment with ATRA maintained cardiac function biomarkers, and reduced proinflammatory cytokines, lipid peroxidation, and immunoexpression of caspase 3 and p53. Moreover, ATRA improved cardiac histoarchitecture, as well as the activities of antioxidative enzymes. Collectively, ATRA can counteract DOX-induced cardiomyopathy through antioxidative and anti-inflammatory properties, besides suppression of the activation of the mitochondrial apoptotic pathway.

摘要

本研究旨在探讨全反式维甲酸(ATRA,维生素 A 的天然衍生物)对阿霉素(DOX)诱导的体内心脏毒性的潜在保护作用及其机制。将 40 只雄性白化大鼠分为对照组、ATRA(0.5mg/kg 体重,腹腔内每日一次)、DOX(2.5mg/kg 体重,腹腔内每周两次,共 3 周)和 DOX+ATRA 组。测定血清乳酸脱氢酶(LDH)、肌酸激酶(CK)、肌酸激酶同工酶(CK-MB)、肌钙蛋白 I、肿瘤坏死因子-α(TNF-α)和白细胞介素-6(IL-6)。此外,还测定了心脏谷胱甘肽(GSH)、谷胱甘肽过氧化物酶(GSH-Px)、超氧化物歧化酶(SOD)和过氧化氢酶(CAT)以及丙二醛(MDA)的含量。检查心脏组织的病理变化和促凋亡半胱氨酸蛋白酶 3 和肿瘤抑制蛋白 p53 的免疫表达。DOX 导致严重的心肌损伤;退行性和坏死性变化以及心脏功能生物标志物恶化;血清 LDH、CK、CK-MB 和肌钙蛋白 I 升高。此外,DOX 抑制心脏抗氧化酶(GSH、GSH-Px、SOD、CAT)活性并增加 MDA 水平。DOX 增加了血清促炎细胞因子(TNF-α、IL-6)和心脏组织中半胱氨酸蛋白酶 3 和 p53 免疫表达的面积百分比。ATRA 预处理维持心脏功能生物标志物,并减少促炎细胞因子、脂质过氧化和半胱氨酸蛋白酶 3 和 p53 的免疫表达。此外,ATRA 改善了心脏组织形态学以及抗氧化酶的活性。总之,ATRA 通过抗氧化和抗炎特性以及抑制线粒体凋亡途径的激活来对抗 DOX 诱导的心肌病。

文献AI研究员

20分钟写一篇综述,助力文献阅读效率提升50倍。

立即体验

用中文搜PubMed

大模型驱动的PubMed中文搜索引擎

马上搜索

文档翻译

学术文献翻译模型,支持多种主流文档格式。

立即体验