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Toxicol Lett

Title:		Study of gaseous benzene effects upon A549 lung epithelial cells using a novel exposure system
Author(s):		Mascelloni M; Delgado-Saborit JM; Hodges NJ; Harrison RM;
Address:		"Division of Environmental Health and Risk Management, School of Geography, Earth & Environmental Sciences, University of Birmingham, Edgbaston, Birmingham B15 2TT, United Kingdom. Division of Environmental Health and Risk Management, School of Geography, Earth & Environmental Sciences, University of Birmingham, Edgbaston, Birmingham B15 2TT, United Kingdom. Electronic address: j.m.delgadosaborit@bham.ac.uk. School of Biosciences, University of Birmingham, Edgbaston, Birmingham B15 2TT, United Kingdom. Division of Environmental Health and Risk Management, School of Geography, Earth & Environmental Sciences, University of Birmingham, Edgbaston, Birmingham B15 2TT, United Kingdom; Department of Environmental Sciences/Center of Excellence in Environmental Studies, King Abdulaziz University, Jeddah 21589, Saudi Arabia"
Journal Title:		Toxicol Lett
Year:		2015
Volume:		20150526
Issue:		1
Page Number:		38 - 45
DOI:		10.1016/j.toxlet.2015.05.015
ISSN/ISBN:		1879-3169 (Electronic) 0378-4274 (Linking)
Abstract:		"Volatile organic compounds (VOCs) are ubiquitous pollutants known to be present in both indoor and outdoor air arising from various sources. Indoor exposure has increasingly become a major cause of concern due to the effects that such pollutants can have on health. Benzene, along with toluene, is one of the main components of the VOC mixture and is a known carcinogen due to its genotoxic effects. The aim of this study was to test the feasibility of an in vitro model to study the short-term effects of exposure of lung cells to airborne benzene. We studied the effects of exposure on DNA and the production of reactive oxygen species (ROS) in A549 cells, exposed to various concentrations of benzene (0.03; 0.1; 0.3 ppm) in gaseous form using a custom designed cell exposure chamber. Results showed a concentration-dependent increase of DNA breaks and an increase of ROS production, confirming the feasibility of the experimental procedure and validating the model for further in vitro studies of exposure to other VOCs"
Keywords:		"Air Pollutants/*toxicity Benzene/*toxicity Cell Line, Tumor Comet Assay DNA Damage/drug effects Environmental Exposure Epithelial Cells/*drug effects/metabolism Humans Lung/*cytology/metabolism Oxidative Stress/drug effects Pilot Projects Reactive Oxygen;"
Notes:		"MedlineMascelloni, Massimiliano Delgado-Saborit, Juana Maria Hodges, Nikolas J Harrison, Roy M eng Research Support, Non-U.S. Gov't Netherlands 2015/05/30 Toxicol Lett. 2015 Aug 19; 237(1):38-45. doi: 10.1016/j.toxlet.2015.05.015. Epub 2015 May 26"