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Tobacco Use

Nrf2 is activated by aqueous extracts of cigarette smoke

Published in Gene Therapy Weekly, February 2nd, 2006

A study from Germany has reported on the characterization of Nrf2 activation and heme oxygenase-1 expression in NIH3T3 cells exposed to aqueous extracts of cigarette smoke (CS).

"CS is a complex chemical mixture estimated to be composed of up to 5000 different chemicals, many of which are prooxidant. Here we show that, at least in vitro, the cellular response designed to combat oxidative stress resulting from CS exposure is primarily controlled by the transcription factor Nrf2, a principal inducer of antioxidant and phase II-related genes," wrote C. Knorr-Wittmann and colleagues, Philip Morris Research Laboratories GmbH.

"The prominent role of Nrf2...

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