p450 Mediated Lung Toxicity

Pulmonary Disease

lung function, smoking, metabolism

The purpose of this project is to do cross species comparisons of the metabolism and toxicity of a number of toxicants which require metabolism for toxicity. All of the toxicants in question are encountered by humans in the workplace, through lifestyle choices (cigarette smoking) and as a result of environmental contamination. The high incidence of pulmonary diseases in the human population means that it will be difficult if not impossible to determine whether humans are at risk from exposure to these chemicals without solid mechanistic data. Recent rodent bioassays suggest that these compounds have oncogenic potential further supporting the need to test the potential for injury in primates. As part of this testing, we intend to establish in vitro methods for assessing critical steps in the metabolism of these agents and their interaction with cellular macromolecules. Once this is done, similar studies can be conducted in Rhesus or in human lung tissue that is available because it cannot be used for transplant purposes.

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