In-Vitro Cytotoxicity and Oxidative Stress Induced by Cerium Aminoclay and Cerium Oxide Nanoparticles in Human Skin Keratinocyte Cells

被引:14
|
作者
Le Thi Nhu Ngoc [1 ]
Vu Khac Hoang Bui [1 ]
Moon, Ju-Young [2 ]
Lee, Young-Chul [1 ]
机构
[1] Gachon Univ, Dept BioNano Technol, 1342 Seongnam Daero, Seongnam Si 13120, Gyeonggi Do, South Korea
[2] Jeonghwa Arts Coll, Myeong Dong Campus,16 Gil 21, Seoul 04631, South Korea
基金
新加坡国家研究基金会;
关键词
Cerium Aminoclay; Cerium Oxide; In-Vitro Cytotoxicity; Oxidative Stress; Human Skin Keratinocyte Cells; HaCaT Cells; ANTIOXIDANT; MECHANISMS; TOXICITY; DAMAGE; ASSAY; CEO2;
D O I
10.1166/jnn.2019.17035
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
Cerium oxide nanoparticles (CeO2 NPs) contain a number of properties suitable for biomedical, environmental and cosmetic applications, and in fact, they are well-known as inorganic sunscreen agents. Recently, cerium aminoclay (CeAC) has been considered as a hybrid material for sunscreen application, however, the basic information on the toxicity and oxidative stress induced by CeAC and CeO2 NPs on cell lines remains scanty. Therefore, the present study performed an MTT assay and ROS measurement to assess the cell viability and oxidative stress on HaCaT cells. The results showed that CeAC and CeO2 NPs exhibited low toxicities (IC50 values of 88.74/86.95 mu g/mL and 84.13/83.13 mu g/mL for 24 and 48 h, respectively). In particular, CeAC showed less toxicity than that did CeO2, due to its larger size, resulting in less penetration into the cell membrane, which fact reduced the level of toxicity. Notably, the coexistence of Ce3+ and Ce4+ oxidation states has been shown to promote the antioxidant activity of Ce nanomaterials, playing a major role in enhancing radical scavenging as well as reducing the intracellular ROS level on HaCaT cells. According to this estimates, CeAC and CeO2 NPs can be considered to be promising candidates for future cosmetic applications, especially sunscreens.
引用
收藏
页码:6369 / 6375
页数:7
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