Apoptosis and cytotoxicity of oligo(styrene-co-acrylonitrile)-modified montmorillonite

被引:17
作者
Liu, Qian [2 ]
Liu, Yachun [1 ,2 ]
Xiang, Shuanglin [2 ]
Mo, Xiaojun [1 ]
Su, Shengpei [1 ]
Zhang, Jian [2 ]
机构
[1] Hunan Normal Univ, Coll Chem & Chem Engn, Key Lab Sustainable Resources Proc & Adv Mat Huna, Changsha 410081, Hunan, Peoples R China
[2] Hunan Normal Univ, Key Lab Prot Chem & Dev Biol, Minist Educ China, Coll Life Sci, Changsha 410081, Hunan, Peoples R China
基金
中国国家自然科学基金;
关键词
Cytotoxicity; Apoptosis; Montmorillonite; Oligo(styrene-co-acrylonitrile); CATIONIC DRUGS; ORAL DELIVERY; CLAY-MINERALS; RELEASE; ADSORPTION; INTERCALATION; INDUCTION; SMECTITE; SYSTEM; ACID;
D O I
10.1016/j.clay.2010.11.019
中图分类号
O64 [物理化学(理论化学)、化学物理学];
学科分类号
070304 ; 081704 ;
摘要
To evaluate the cytotoxic effect and the mechanism of the apoptosis of oligo(styrene-co-acrylonitrile)modified montmorillonite (PSAN-MMT), the present study is focused on the involvement of antiproliferation, lactate dehydrogenase release, apoptosis level, caspase 3 activity, transcriptional activity of apoptosis-related gene and apoptosis-related protein and mRNA level. Non-cytotoxic montmorillonite (MMT) incubated cells were used as control. Little cytotoxicity was observed in PSAN-MMT treated cells, and lower level of apoptosis was induced by PSAN-MMT when cells were incubated with high montmorillonite content (1 g/L). The apoptosis seemed to follow a transcription-dependent route by activating proapoptotic genes such as p53 and p21. The modified MMT could be a promising candidate of biosafety controlled-release carrier for large drug molecules and for gene delivery. (c) 2010 Elsevier B.V. All rights reserved.
引用
收藏
页码:214 / 219
页数:6
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