维生素E TPGS包被的反式白藜芦醇脂质体的药代动力学、生物分布、体外细胞毒性及生物相容性
Pharmacokinetics, biodistribution, in vitro cytotoxicity and biocompatibility of Vitamin E TPGS coated trans resveratrol liposomes.
作者信息
Vijayakumar Mahalingam Rajamanickam, Vajanthri Kiran Yellappa, Balavigneswaran Chelladurai Karthikeyan, Mahto Sanjeev Kumar, Mishra Nira, Muthu Madaswamy S, Singh Sanjay
机构信息
Department of Pharmaceutics, Indian Institute of Technology (Banaras Hindu University), Varanasi 221 005, India.
School of Biomedical Engineering, Indian Institute of Technology (Banaras Hindu University), Varanasi 221 005, India.
出版信息
Colloids Surf B Biointerfaces. 2016 Sep 1;145:479-491. doi: 10.1016/j.colsurfb.2016.05.037. Epub 2016 May 14.
The clinical application of trans resveratrol (RSV) in glioma treatment is largely limited because of its rapid metabolism, fast elimination from systemic circulation and low biological half life. Therefore, the objectives of this study were to enhance the circulation time, biological half life and passive brain targeting of RSV using d-α-tocopheryl polyethylene glycol 1000 succinate (TPGS) coated liposomes (RSV-TPGS-Lipo). In addition to basic liposomal characterizations, in vitro anticancer potential against C6 glioma cell lines and cellular internalization of liposomes were carried out by MTT assay and confocal laser scanning microscopy (CLSM), respectively. Pharmacokinetics and tissue distribution studies were also carried out after intravenous administration in Charles Foster rats. RSV-TPGS-Lipo 2 showed significantly higher cytotoxicity than RSV-Lipo (uncoated liposomes) and RSV. Both uncoated and TPGS coated liposomes showed excellent cellular uptake. RSV, RSV-Lipo and RSV-TPGS-Lipo 2 were found to be haemocompatible and safe after i.v. administration. Area under the curve (AUC) and plasma half life (t1/2) after i.v. administration of RSV-TPGS-Lipo 2 was found to be approximately 5.73 and 6.72 times higher than that of RSV-Lipo as well as 29.94 and 29.66 times higher than that of RSV, respectively. Thus, the outcome indicates that RSV-TPGS-Lipo 2 is a promising carrier for glioma treatment with improved pharmacokinetic parameters. Moreover, brain accumulation of RSV-Lipo and RSV-TPGS-Lipo 2 was found to be significantly higher than that of RSV (P<0.05). Results are suggesting that both RSV-Lipo and RSV-TPGS-Lipo 2 are the promising tools of RSV for the treatment of brain cancer.
白藜芦醇(RSV)在胶质瘤治疗中的临床应用受到很大限制,因为其代谢迅速,能快速从体循环中清除,且生物半衰期较短。因此,本研究的目的是使用琥珀酸聚乙二醇1000维生素E(TPGS)包被的脂质体(RSV-TPGS-Lipo)来延长RSV的循环时间、生物半衰期并增强其被动脑靶向性。除了基本的脂质体表征外,分别通过MTT法和共聚焦激光扫描显微镜(CLSM)对C6胶质瘤细胞系进行了体外抗癌潜力研究以及脂质体的细胞内化研究。还在查尔斯·福斯特大鼠静脉给药后进行了药代动力学和组织分布研究。RSV-TPGS-Lipo 2显示出比RSV-Lipo(未包被脂质体)和RSV更高的细胞毒性。未包被和TPGS包被的脂质体均显示出良好的细胞摄取。静脉给药后发现RSV、RSV-Lipo和RSV-TPGS-Lipo 2具有血液相容性且安全。静脉注射RSV-TPGS-Lipo 2后的曲线下面积(AUC)和血浆半衰期(t1/2)分别比RSV-Lipo高约5.73倍和6.72倍,比RSV高29.94倍和29.66倍。因此,结果表明RSV-TPGS-Lipo 2是一种具有改善药代动力学参数的、有前景的胶质瘤治疗载体。此外,发现RSV-Lipo和RSV-TPGS-Lipo 2在脑中的蓄积明显高于RSV(P<0.05)。结果表明RSV-Lipo和RSV-TPGS-Lipo 2都是RSV治疗脑癌的有前景的工具。