We found a match
Your institution may have access to this item. Find your institution then sign in to continue.
- Title
Label-free and dynamic monitoring of cytotoxicity to the blood--brain barrier cells treated with nanometre copper oxide.
- Authors
Duan Lian; Zhang Chonghua; Gu Wen; Zhang Hongwei; Bai Xuetao
- Abstract
A cytotoxicity study was conducted with a primary culture of the nervous system cells, including brain microvascular endothelial cells (BMECs) and astrocytes, which are important components of the blood-brain barrier. The real-time cell analysis (RTCA) was used to determine the cytotoxicity of copper-oxide nanoparticles (CuO NPs). The IC50 values of CuO NPs in astrocytes and BMECs were determined by the RTCA at different exposure times and were used as base values for further research. DNA damage after exposure to CuO NPs for 3 and 24 h was assessed using comet assay at the IC50 obtained from RTCA. The onset time of cytotoxicity induced by CuO NPs was 2 and 2-4 h post-exposure in BMECs and astrocytes, respectively. Furthermore, the degree of cytotoxicity induced by exposure to CuO NPs for 24-48 h in the BMECs and astrocytes was similar. Treatment with CuO NPs at 1/2*IC50 and 1/5*IC50 for 3 h induced genotoxicity in both cells as assessed by a measurement of DNA damage, although no cytotoxicity was observed. However, significant DNA damage was observed at all concentrations of CuO NPs used in this study, when the treatment time was 24 h.
- Subjects
DNA damage; BIOCHEMICAL genetics; COPPER oxide; CELL analysis; BIOMATERIALS; BIOLOGICAL specimen analysis
- Publication
IET Nanobiotechnology (Wiley-Blackwell), 2017, Vol 11, Issue 8, p948
- ISSN
1751-8741
- Publication type
Article
- DOI
10.1049/iet-nbt.2016.0161