Albumin reduces thrombogenic potential of single-walled carbon nanotubes

被引：23

作者：

Vakhrusheva, Tatyana V. ^{[1
]}

Gusev, Alexandr A. ^{[1
]}

Gusev, Sergey A. ^{[1
]}

Vlasova, Irina I. ^{[1
]}

机构：

[1] Fed Medicobiol Agcy, Res Inst Physicochem Med, Moscow 119435, Russia

来源：

TOXICOLOGY LETTERS | 2013年 / 221卷 / 02期

基金：

俄罗斯基础研究基金会;

关键词：

Carbon nanotubes; Clotting time; Platelet aggregation; Nanoparticle agglomerate; Albumin; Blood biocompatibility; COMPLEMENT ACTIVATION; PLATELET ACTIVATION; DRUG-DELIVERY; CALCIUM-ENTRY; IN-VITRO; CANCER; ADSORPTION; INFLAMMATION; FIBRINOGEN; PROTEINS;

D O I：

10.1016/j.toxlet.2013.05.642

中图分类号：

R99 [毒物学（毒理学）];

学科分类号：

100405 ;

摘要：

Reduction of thrombogenicity of carbon nanotubes is an important prerequisite for their biomedical use. We assessed the thrombogenic activity of carboxylated single-walled carbon nanotubes (c-SWCNTs) and covalently PEGylated c-SWNCI's (PEG-SWCNTs) by testing the clotting time of platelet poor plasma and platelet aggregation in whole blood samples, and evaluated the impact of human serum albumin on thrombogenicity of carbon nanotubes. Both types of SWCNTs exhibited considerable thrombogenic activity. SWCNTs accelerated plasma clotting, with a lesser effect seen for PEG-SWCNTs. Treatment of SWCNTs with albumin did not affect the SWCNT-induced shortening of clotting time. In whole blood, no discernible differences in the effect of c-SWCNTs and PEG-SWCNTs on platelets were observed. Upon addition of SWCNTs to blood, dose- and time-dependent formation of agglomerates of nanotubes and platelets was demonstrated. Pretreatment of SWCNTs with albumin reduced the platelet aggregation: the number of single platelets increased, and the size of platelet-SWCNT agglomerates decreased dramatically. Hence, addition of albumin may serve to attenuate the adverse, thrombogenic effect of CNTs. (C) 2013 Elsevier Ireland Ltd. All rights reserved.

引用

页码：137 / 145

页数：9

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