| Title |
Kalopanacis Cortex extract-capped gold nanoparticles activate NRF2 signaling and ameliorate damage in human neuronal SH-SY5Y cells exposed to oxygen–glucose deprivation and reoxygenation
|
|---|---|
| Published in |
International Journal of Nanomedicine, June 2017
|
| DOI | 10.2147/ijn.s138178 |
| Pubmed ID | |
| Authors |
Sun Young Park, Seon Yeong Chae, Jin Oh Park, Kyu Jin Lee, Geuntae Park |
| Abstract |
Recently, environment-friendly synthesis of gold nanoparticles (GNPs) has been extensively explored by biologists and chemists. However, significant research is still required to determine whether "eco-friendly" GNPs are beneficial to human health and to elucidate the molecular mechanisms of their effects on human cells. We used human neuronal SH-SY5Y cells to show that treatment with Kalopanacis Cortex extract-capped GNPs (KC-GNs), prepared via an eco-friendly, fast, one-pot synthetic route, protected neuronal cells against oxygen-glucose deprivation/reoxygenation (OGD/R)-induced damage. To prepare GNPs, Kalopanacis Cortex was used without any chemical reducing and stabilizing agents. Ultraviolet-visible spectroscopy showed maximum absorbance at 526 nm owing to KC-GN surface plasmon resonance. Hydrodynamic size (54.02±2.19 nm) and zeta potential (-20.3±0.04 mV) were determined by dynamic light scattering. The average diameter (41.07±3.05 nm) was determined by high-resolution transmission electron microscopy. Energy-dispersive X-ray diffraction spectroscopy and X-ray diffraction confirmed the presence of assembled GNPs. Fourier transform infrared analysis suggested that functional groups such as O-H, C-C, and C-N participated in KC-GN formation. Cell viability assays indicated that KC-GNs restored the viability of OGD/R-treated SH-SY5Y cells. Flow cytometry demonstrated that KC-GNs inhibited the OGD/R-induced reactive oxygen species production and mitochondrial membrane potential disruption. KC-GNs also inhibited the apoptosis of OGD/R-exposed cells. Western blot analysis indicated that the OGD/R-induced cellular apoptosis and simultaneous increases in the expression of cleaved caspase-3, p53, p21, and B-cell lymphoma 2-associated X protein were reversed by KC-GNs. The KC-GN-mediated protection against OGD/R-induced neurotoxicity was diminished by NRF2 and heme oxygenase-1 gene knockdowns. Collectively, these results suggested that KC-GNs exerted strong neuroprotective effects on human neuronal cells, which might be attributed to the attenuation of OGD/R-induced neuronal cell injury through the NRF2 signaling pathway. |
Mendeley readers
The data shown below were compiled from readership statistics for 28 Mendeley readers of this research output. Click here to see the associated Mendeley record.
Geographical breakdown
| Country | Count | As % |
|---|---|---|
| Unknown | 28 | 100% |
Demographic breakdown
| Readers by professional status | Count | As % |
|---|---|---|
| Student > Bachelor | 5 | 18% |
| Student > Ph. D. Student | 5 | 18% |
| Student > Master | 5 | 18% |
| Researcher | 4 | 14% |
| Student > Doctoral Student | 1 | 4% |
| Other | 1 | 4% |
| Unknown | 7 | 25% |
| Readers by discipline | Count | As % |
|---|---|---|
| Biochemistry, Genetics and Molecular Biology | 4 | 14% |
| Pharmacology, Toxicology and Pharmaceutical Science | 4 | 14% |
| Chemistry | 4 | 14% |
| Engineering | 3 | 11% |
| Agricultural and Biological Sciences | 2 | 7% |
| Other | 3 | 11% |
| Unknown | 8 | 29% |
Attention Score in Context
This research output has an Altmetric Attention Score of 1. This is our high-level measure of the quality and quantity of online attention that it has received. This Attention Score, as well as the ranking and number of research outputs shown below, was calculated when the research output was last mentioned on 14 August 2017.
All research outputs
#20,660,571
of 25,382,440 outputs
Outputs from International Journal of Nanomedicine
#3,127
of 4,122 outputs
Outputs of similar age
#254,491
of 330,503 outputs
Outputs of similar age from International Journal of Nanomedicine
#52
of 81 outputs
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