SIRT1在丙戊酸对肝细胞毒性中的作用研究

被引:7
作者
侯相瑜
金晶
李宏亮
柳睿
范晓梅
黄民
机构
[1] 中山大学药学院药物代谢与药动学实验室
关键词
丙戊酸; SIRT1; 蛋白表达; 肝细胞毒性; HepG2; 细胞生长;
D O I
暂无
中图分类号
R329.2 [人体细胞学];
学科分类号
100107 [人体解剖与组织胚胎学(人体解剖学、组织与胚胎学)];
摘要
目的探讨沉默信息调节因子1(SIRT1)在丙戊酸对肝脏Hep G2细胞毒性中的作用。方法在Hep G2细胞中,丙戊酸(2 mmol·L-1)孵育6、12、24、48 h,或丙戊酸(0.5、1、2 mmol·L-1)分别孵育48 h,通过Western blot方法检测丙戊酸对SIRT1蛋白表达的影响;通过瞬时转染SIRT1表达质粒和si-SIRT1,采用SRB方法,观察对SIRT1基因进行过表达和抑制后,丙戊酸对Hep G2细胞毒性的改变情况。结果丙戊酸对SIRT1的表达有抑制作用,且具有时间和剂量依赖性。过表达SIRT1后,Hep G2细胞对丙戊酸的毒性敏感性下降,转染前后IC50分别为(4.025±0.47)、(10.87±1.50)mmol·L-1;而干扰SIRT1后,Hep G2细胞对丙戊酸的毒性敏感性增加,转染前后IC50分别为(1.938±0.16)、(0.663±0.05)mmol·L-1。结论丙戊酸可抑制SIRT1的蛋白表达,并且过表达SIRT1可拮抗丙戊酸对肝细胞的毒性作用。
引用
收藏
页码:31 / 34
页数:4
相关论文
共 11 条
[1]
丙戊酸通过CREB上调脑红蛋白并保护N2a细胞免受双氧水诱导的神经损伤 [J].
刘宁 ;
寻禹 ;
李亚丹 ;
王婷婷 ;
钟爱军 ;
姚亮元 ;
袁秀菊 ;
向双林 .
中国药理学通报, 2014, 30 (05) :619-623
[2]
Valproic acid suppresses Nrf2/Keap1 dependent antioxidant protection through induction of endoplasmic reticulum stress and Keap1 promoter DNA demethylation in human lens epithelial cells[J] Periyasamy Palsamy;Keshore R. Bidasee;Toshimichi Shinohara Experimental Eye Research 2014,
[3]
SIRT1 and other sirtuins in metabolism[J] Hung-Chun Chang;Leonard Guarente Trends in Endocrinology & Metabolism 2014,
[4]
Adverse drug reactions induced by valproic acid[J] Radu M. Nanau;Manuela G. Neuman Clinical Biochemistry 2013,
[5]
Molecular and Therapeutic Potential and Toxicity of Valproic Acid[J] Sébastien Chateauvieux;Franck Morceau;Mario Dicato;Marc Diederich;Ronald E. Baynes Journal of Biomedicine and Biotechnology 2010,
[6]
Participation of lipid transport and fatty acid metabolism in valproate sodium-induced hepatotoxicity in HepG2 cells[J] Qiaoli Ji;Xiaolian Shi;Rong Lin;Youhua Mao;Xiaogang Zhai;Qinqin Lin;Jiye Zhang Toxicology in Vitro 2010,
[7]
VPA-related axial skeletal defects and apoptosis: A proposed event cascade[J] Francesca Di Renzo;Maria Luisa Broccia;Erminio Giavini;Elena Menegola Reproductive Toxicology 2009,
[8]
A Brazilian galactosialidosis patient given renal transplantation: A case report[J] A. Kiss;P. R. G. Zen;V. Bittencourt;G. A. Paskulin;R. Giugliani;A. d’Azzo;I. V. Schwartz Journal of Inherited Metabolic Disease 2008,
[9]
Active Regulator of SIRT1 Cooperates with SIRT1 and Facilitates Suppression of p53 Activity[J] Eun-Joo Kim;Jeong-Hoon Kho;Moo-Rim Kang;Soo-Jong Um Molecular Cell 2007,
[10]
ILAE Treatment Guidelines: Evidence‐based Analysis of Antiepileptic Drug Efficacy and Effectiveness as Initial Monotherapy for Epileptic Seizures and Syndromes[J] TracyGlauser;ElinorBen‐Menachem;BlaiseBourgeois;AvitalCnaan;DavidChadwick;CarlosGuerreiro;ReettaKalviainen;RichardMattson;EmilioPerucca;TorbjornTomson Epilepsia 2006,