Zinc Ions Induce Inflammatory Responses in Vascular Endothelial Cells
| Autor: | How-Ran Chao, Feng-Yuan Tsai, Tsui-Chun Tsou, Szu-Ching Yeh |
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| Rok vydání: | 2011 |
| Předmět: |
inorganic chemicals
Health Toxicology and Mutagenesis chemistry.chemical_element Inflammation Zinc Toxicology Umbilical vein medicine Humans Cells Cultured ICAM-1 Cell adhesion molecule Chemistry NF-kappa B Endothelial Cells General Medicine Intercellular Adhesion Molecule-1 Pollution IκBα Zinc Compounds Immunology Biophysics Phosphorylation Particulate Matter Zinc Oxide medicine.symptom Intracellular Signal Transduction |
| Zdroj: | Bulletin of Environmental Contamination and Toxicology. 87:113-116 |
| ISSN: | 1432-0800 0007-4861 |
| DOI: | 10.1007/s00128-011-0317-9 |
| Popis: | Using one particulate zinc oxide (ZnO) and two soluble zinc compounds (Zn(NO(3))(2) and Zn(CH(3)COO)(2)), we aimed to clarify if zinc ions (Zn(2+)), like particulate ZnO, caused inflammatory responses in vascular endothelial cells. Treatments of human umbilical vein endothelial cells (HUVECs) with 368.6 μM of each zinc compound caused marked increases in IκBα phosphorylation and intercellular adhesion molecule-1 (ICAM-1) expression. Treatments with Zn(CH(3)COO)(2) (50-350 μM) induced a dose-dependent ICAM-1 expression. These results show that Zn(2+) alone is sufficient to induce similar levels of ICAM-1 expression as ZnO particles, suggesting that dissolved Zn(2+) may play the major role in inflammatory effect of ZnO particles on vascular endothelial cells. |
| Databáze: | OpenAIRE |
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