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2020/10/13
Gap junction protein beta 4 plays an important role in cardiac function in humans, rodents, and zebrafish

2020/05/28
A novel orexin antagonist from a natural plant was discovered using zebrafish behavioural analysis

2019/10/15
C3orf70 Is Involved in Neural and Neurobehavioral Development

2019/09/22
Generation of a Triple-Transgenic Zebrafish Line for Assessment of Developmental Neurotoxicity during Neuronal Differentiation

2019/07/17
Aging-associated microstructural deterioration of vertebra in zebrafish

tCopper Oxide Nanoparticles Reduce Vasculogenesis in Transgenic Zebrafish Through Down-Regulation of Vascular Endothelial Growth Factor Expression and Induction of Apoptosis

                     
2015/03/01

Journal of Nanoscience and Nanotechnology, Volume 15, Number 3, March 2015, pp. 2140-2147(8)

Copper Oxide Nanoparticles Reduce Vasculogenesis in Transgenic Zebrafish Through Down-Regulation of Vascular Endothelial Growth Factor Expression and Induction of Apoptosis

Chang, Jie; Ichihara, Gaku; Shimada, Yasuhito; Tada-Oikawa, Saeko; Kuroyanagi, Junya; Zhang, Beibei; Suzuki, Yuka; Sehsah, Radwa; Kato, Masashi; Tanaka, Toshio; Ichihara, Sahoko

Abstract:
The present study investigated the effects of exposure to metal oxide nanoparticles on vasculogenesis/angiogenesis using transgenic zebrafish. The study also examined the potential mechanisms involved in those effects using human umbilical vein endothelial cells (HUVEC). TG (nacre/fli1:EGFP) zebrafish were exposed to nano-sized titanium dioxide (TiO2), silica dioxide (SiO2), and copper oxide (CuO) particles at 0.01, 1 and 100 ƒΚg/ml concentrations from 1 to 5 dpf (day-post-fertilization). Angiogenesis was evaluated morphologically at the end of exposure. Exposure to CuO nanoparticles reduced the number of transversely-running subintestinal vessels in TG zebrafish. Exposure to CuO nanoparticles down-regulated the expression of vascular endothelial growth factor (VEGF) and VEGF receptor in endothelial cells sorted by Fluorescence Activated Cell Sorter (FACS). Exposure of HUVEC to CuO nanoparticles reduced cell viability and increased apoptotic index in a dose-dependent manner. The results suggested that CuO nanoparticles inhibit vasculogenesis through reduction of VEGF expression and induction of apoptosis.

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Journal of Nanoscience and Nanotechnology