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dc.contributor.authorZhang, Jingwen*
dc.contributor.authorMa, A.*
dc.contributor.authorShang, Lijun*
dc.date.accessioned2017-06-30T10:46:50Z
dc.date.available2017-06-30T10:46:50Z
dc.date.issued2017-08
dc.identifier.citationZhang J, Ma A and Shang L (2017) Effect of gold nanoparticles on H9C2 myoblasts and rat peripheral blood mononuclear cells. Presented at: 38th World Congress of the International Union of Physiological Sciences (IUPS), Rhythms of Life, Rio de Janeiro, Brazil,1-5 Aug, 2017. Abstract ID: 1095.en_US
dc.identifier.urihttp://hdl.handle.net/10454/12401
dc.descriptionnoen_US
dc.description.abstractRecent studies have gained positive results using nanoparticles (NPs) in treating atherosclerosis on animals. But their toxicity and application in treating other heart diseases such as heart failure and endocarditis still need proper investigation. Gold nanoparticles (Au-NPs) were chosen as model substances as they have been successfully used in treating cancer. In this study, we use both H9C2 myoblasts and rat peripheral blood mononuclear cells to determine the influence of Au-NP size on their cytotoxicity and cell apoptosis. H9C2 cells were treated with Au-NPs of a diameter of 5, 20, 40 and 100nmfor 24 hrs before their cell viabilities tested by MTT assay, cell apoptosis measured by flow cytometry, and the generation of reactive oxygen species (ROS) detected by Fluorometric Intracellular ROS Kit. Distribution of the Au-NPs and their effects on the structure of mitochondria and lysosome were detected by electron microscopy. In addition, we obtained rat peripheral blood mononuclear cells and treated them with Au-NPs same with H9C2 cell line. Our results showed NPs of 5, 40, and 100 nm reduced cell viabilities on H9C2 cells while20nm showed no change on cell viability (Ctrl: 100±8.2 vs 20nm: 95.39±9.13, P>0.05, n=6) and some protect effect on ISO induced H9C2 cells apoptosis (ISO: 100±13.5 vs 20nm: 80.19±17.36, P>0.05, n=6). All size of Au-NPs reduced cell viabilities on rat peripheral blood mononuclear cells while 40nm showed the least reduction on cell viability (Ctrl: 100.0±3.0 vs 40nm: 76.31±3.68, P<0.001, n=6) and significant protect effect on ISO-induced rat peripheral monocytes apoptosis (ISO: 100±1.86 vs 40nm: 45.34±10.32, P<0.05, n=6). In addition, 20nm Au-NP showed some protect effect on ROS generation on ISO-induced H9C2 cells (ISO: 100±3.79 vs 20nm: 94.84±4.98, P>0.05, n=6), while 40nm produced more ROS (ISO: 100±3.79 vs 40nm: 141.63±42.81, P>0.05, n=6). Electron microscopy detection showed correlated results in structure. These results on H9C2 cell line are basically in agreeable to our animal study. The protective effect of 20nm may due to its ability to protect ISO-induced ROS generation. The results on rat peripheral monocytes are slightly different to those on H9C2 cells. Further investigation need to focus on the role of NPs size on cell apoptosis by detecting autophagy specific protein through western blotting.en_US
dc.language.isoenen_US
dc.relation.isreferencedbyhttp://iups2017.com/site/en_US
dc.subjectGold nanoparticles; H9C2 myoblasts; Peripheral blood mononuclear cells; Rat model; Cytotoxicity; Cell apoptosisen_US
dc.titleEffect of gold nanoparticles on H9C2 myoblasts and rat peripheral blood mononuclear cellsen_US
dc.status.refereedn/aen_US
dc.typeAbstracten_US
dc.type.versionNo full-text in the repositoryen_US
dc.description.publicnotesAbstract of conference paper.en_US


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