PMID- 25526690 OWN - NLM STAT- MEDLINE DCOM- 20160321 LR - 20150309 IS - 1879-3177 (Electronic) IS - 0887-2333 (Linking) VI - 29 IP - 3 DP - 2015 Apr TI - Oxidative and pro-inflammatory effects of cobalt and titanium oxide nanoparticles on aortic and venous endothelial cells. PG - 426-37 LID - S0887-2333(14)00247-1 [pii] LID - 10.1016/j.tiv.2014.12.007 [doi] AB - Ultra-fine particles have recently been included among the risk factors for the development of endothelium inflammation and atherosclerosis, and cobalt (CoNPs) and titanium oxide nanoparticles (TiNPs) have attracted attention because of their wide range of applications. We investigated their toxicity profiles in two primary endothelial cell lines derived from human aorta (HAECs) and human umbilical vein (HUVECs) by comparing cell viability, oxidative stress, the expression of adhesion molecules and the release of chemokines during NP exposure. Both NPs were very rapidly internalised, and significantly increased adhesion molecule (ICAM-1, VCAM-1, E-selectin) mRNA and protein levels and the release of monocyte chemoattractant protein-1 (MCP-1) and interleukin 8 (IL-8). However, unlike the TiNPs, the CoNPs also induced time- and concentration-dependent metabolic impairment and oxidative stress without any evident signs of cell death or the induction of apoptosis. There were differences between the HAECs and HUVECs in terms of the extent of oxidative stress-related enzyme and vascular adhesion molecule expression, ROS production, and pro-inflammatory cytokine release despite the similar rate of NP internalisation, thus indicating endothelium heterogeneity in response to exogenous stimuli. Our data indicate that NPs can induce endothelial inflammatory responses via various pathways not involving only oxidative stress. CI - Copyright (c) 2014 Elsevier Ltd. All rights reserved. FAU - Alinovi, Rossella AU - Alinovi R AD - Department of Clinical and Experimental Medicine, University of Parma, Italy. FAU - Goldoni, Matteo AU - Goldoni M AD - Department of Clinical and Experimental Medicine, University of Parma, Italy. Electronic address: matteo.goldoni@unipr.it. FAU - Pinelli, Silvana AU - Pinelli S AD - Department of Clinical and Experimental Medicine, University of Parma, Italy. FAU - Campanini, Marco AU - Campanini M AD - IMEM-CNR Institute, Parma, Italy. FAU - Aliatis, Irene AU - Aliatis I AD - Department of Physics and Earth Sciences, University of Parma, Italy. FAU - Bersani, Danilo AU - Bersani D AD - Department of Physics and Earth Sciences, University of Parma, Italy. FAU - Lottici, Pier Paolo AU - Lottici PP AD - Department of Physics and Earth Sciences, University of Parma, Italy. FAU - Iavicoli, Sergio AU - Iavicoli S AD - Italian Workers' Compensation Authority (INAIL), Research Area, Department of Occupational Hygiene, Rome, Italy. FAU - Petyx, Marta AU - Petyx M AD - Italian Workers' Compensation Authority (INAIL), Research Area, Department of Occupational Hygiene, Rome, Italy. FAU - Mozzoni, Paola AU - Mozzoni P AD - Department of Clinical and Experimental Medicine, University of Parma, Italy; Italian Workers' Compensation Authority (INAIL), Research Center at the University of Parma, Italy. FAU - Mutti, Antonio AU - Mutti A AD - Department of Clinical and Experimental Medicine, University of Parma, Italy. LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't DEP - 20141216 PL - England TA - Toxicol In Vitro JT - Toxicology in vitro : an international journal published in association with BIBRA JID - 8712158 RN - 15FIX9V2JP (titanium dioxide) RN - 3G0H8C9362 (Cobalt) RN - D1JT611TNE (Titanium) SB - IM MH - Aorta, Thoracic/cytology/drug effects MH - Cell Line MH - Cell Proliferation/drug effects MH - Cell Survival/drug effects MH - Cobalt/*toxicity MH - Endothelial Cells/*drug effects MH - Human Umbilical Vein Endothelial Cells/drug effects MH - Humans MH - Inflammation/*chemically induced/pathology MH - Membrane Potential, Mitochondrial/drug effects MH - Nanoparticles/*toxicity MH - Oxidative Stress/*drug effects MH - Particle Size MH - Titanium/*toxicity OTO - NOTNLM OT - Cobalt oxide nanoparticles OT - Endothelial cells OT - Inflammation OT - Oxidative stress OT - Titanium oxide nanoparticles EDAT- 2014/12/21 06:00 MHDA- 2016/03/22 06:00 CRDT- 2014/12/21 06:00 PHST- 2014/08/08 00:00 [received] PHST- 2014/12/05 00:00 [revised] PHST- 2014/12/08 00:00 [accepted] PHST- 2014/12/21 06:00 [entrez] PHST- 2014/12/21 06:00 [pubmed] PHST- 2016/03/22 06:00 [medline] AID - S0887-2333(14)00247-1 [pii] AID - 10.1016/j.tiv.2014.12.007 [doi] PST - ppublish SO - Toxicol In Vitro. 2015 Apr;29(3):426-37. doi: 10.1016/j.tiv.2014.12.007. Epub 2014 Dec 16.