New exposure system to evaluate the toxicity of (scooter) exhaust emissions in lung cells in vitro

Müller, Loretta; Comte, Pierre; Czerwinski, Jan; Kasper, Markus; Mayer, Andreas C R; Gehr, Peter; Burtscher, Heinz; Morin, Jean-Paul; Konstandopoulos, Athanasios; Rothen-Rutishauser, Barbara (2010). New exposure system to evaluate the toxicity of (scooter) exhaust emissions in lung cells in vitro. Environmental science & technology, 44(7), pp. 2632-8. Washington, D.C.: ACS Publications 10.1021/es903146g

Full text not available from this repository. (Request a copy)

A constantly growing number of scooters produce an increasing amount of potentially harmful emissions. Due to their engine technology, two-stroke scooters emit huge amounts of adverse substances, which can induce adverse pulmonary and cardiovascular health effects. The aim of this study was to develop a system to expose a characterized triple cell coculture model of the human epithelial airway barrier, to freshly produced and characterized total scooter exhaust emissions. In exposure chambers, cell cultures were exposed for 1 and 2 h to 1:100 diluted exhaust emissions and in the reference chamber to filtered ambient air, both controlled at 5% CO(2), 85% relative humidity, and 37 degrees C. The postexposure time was 0-24 h. Cytotoxicity, used to validate the exposure system, was significantly increased in exposed cell cultures after 8 h postexposure time. (Pro-) inflammatory chemo- and cytokine concentrations in the medium of exposed cells were significantly higher at the 12 h postexposure time point. It was shown that the described exposure system (with 2 h exposure duration, 8 and 24 h postexposure time, dilution of 1:100, flow of 2 L/min as optimal exposure conditions) can be used to evaluate the toxic potential of total exhaust emissions.

Item Type:

Journal Article (Original Article)

Division/Institute:

04 Faculty of Medicine > Pre-clinic Human Medicine > Institute of Anatomy > Topographical and Clinical Anatomy
04 Faculty of Medicine > Pre-clinic Human Medicine > Institute of Anatomy

UniBE Contributor:

Rothen-Rutishauser, Barbara and Gehr, Peter

ISSN:

0013-936X

Publisher:

ACS Publications

Language:

English

Submitter:

Factscience Import

Date Deposited:

04 Oct 2013 14:09

Last Modified:

17 Mar 2015 19:10

Publisher DOI:

10.1021/es903146g

PubMed ID:

20230045

Web of Science ID:

000275993700063

URI:

https://boris.unibe.ch/id/eprint/1045 (FactScience: 201742)

Actions (login required)

Edit item Edit item
Provide Feedback