PMID- 22129238 OWN - NLM STAT- MEDLINE DCOM- 20120126 LR - 20220410 IS - 1528-7394 (Print) IS - 0098-4108 (Linking) VI - 75 IP - 2 DP - 2012 TI - Cell permeability, migration, and reactive oxygen species induced by multiwalled carbon nanotubes in human microvascular endothelial cells. PG - 112-28 LID - 10.1080/15287394.2011.615110 [doi] AB - Multiwalled carbon nanotubes (MWCNT) have elicited great interest in biomedical applications due to their extraordinary physical, chemical, and optical properties. Intravenous administration of MWCNT-based medical imaging agents and drugs in animal models was utilized. However, the potential harmful health effects of MWCNT administration in humans have not yet been elucidated. Furthermore, to date, there are no apparent reports regarding the precise mechanisms of translocation of MWCNT into target tissues and organs from blood circulation. This study demonstrates that exposure to MWCNT leads to an increase in cell permeability in human microvascular endothelial cells (HMVEC). The results obtained from this study also showed that the MWCNT-induced rise in endothelial permeability is mediated by reactive oxygen species (ROS) production and actin filament remodeling. In addition, it was found that MWCNT promoted cell migration in HMVEC. Mechanistically, MWCNT exposure elevated the levels of monocyte chemoattractant protein-1 (MCP-1) and intercellular adhesion molecule 1 (ICAM-1) in HMVEC. Taken together, these results provide new insights into the bioreactivity of MWCNT, which may have implications in the biomedical application of MWCNT in vascular targeting, imaging, and drug delivery. The results generated from this study also elucidate the potential adverse effects of MWCNT exposure on humans at the cellular level. FAU - Pacurari, M AU - Pacurari M AD - Mary Babb Randolph Cancer Center, West Virginia University, Morgantown, West Virginia 26506-9300, USA. FAU - Qian, Y AU - Qian Y FAU - Fu, W AU - Fu W FAU - Schwegler-Berry, D AU - Schwegler-Berry D FAU - Ding, M AU - Ding M FAU - Castranova, V AU - Castranova V FAU - Guo, N L AU - Guo NL LA - eng GR - R01 LM009500-03/LM/NLM NIH HHS/United States GR - P20 RR016440/RR/NCRR NIH HHS/United States GR - R01 LM009500/LM/NLM NIH HHS/United States GR - P20 RR016440-09S1/RR/NCRR NIH HHS/United States GR - P20RR16440/RR/NCRR NIH HHS/United States GR - R01LM009500/LM/NLM NIH HHS/United States PT - Journal Article PT - Research Support, N.I.H., Extramural PL - England TA - J Toxicol Environ Health A JT - Journal of toxicology and environmental health. Part A JID - 100960995 RN - 0 (CCL2 protein, human) RN - 0 (Chemokine CCL2) RN - 0 (Drug Carriers) RN - 0 (Environmental Pollutants) RN - 0 (Nanotubes, Carbon) RN - 0 (Reactive Oxygen Species) RN - 126547-89-5 (Intercellular Adhesion Molecule-1) SB - IM MH - Actin Cytoskeleton/drug effects MH - Cell Line MH - Cell Membrane Permeability/*drug effects MH - Cell Movement/*drug effects MH - Chemokine CCL2/metabolism MH - Drug Carriers/adverse effects/*metabolism MH - Electric Impedance MH - Endothelium, Vascular/*drug effects/metabolism/ultrastructure MH - Environmental Pollutants/adverse effects/metabolism MH - Humans MH - Intercellular Adhesion Molecule-1/metabolism MH - Kinetics MH - Microscopy, Electron, Transmission MH - Microvessels/*drug effects/metabolism/ultrastructure MH - Nanotubes, Carbon/adverse effects/*chemistry/ultrastructure MH - Phagocytosis/drug effects MH - Reactive Oxygen Species/*metabolism PMC - PMC3230883 MID - NIHMS318463 EDAT- 2011/12/02 06:00 MHDA- 2012/01/27 06:00 PMCR- 2013/01/15 CRDT- 2011/12/02 06:00 PHST- 2011/12/02 06:00 [entrez] PHST- 2011/12/02 06:00 [pubmed] PHST- 2012/01/27 06:00 [medline] PHST- 2013/01/15 00:00 [pmc-release] AID - 10.1080/15287394.2011.615110 [doi] PST - ppublish SO - J Toxicol Environ Health A. 2012;75(2):112-28. doi: 10.1080/15287394.2011.615110.