Scientists have long known that air pollution can be linked with an increased risk of lung cancer in people who never smoked, but new research describes one mechanism that might help explain how.
The findings, presented Saturday at the European Society for Medical Oncology Presidential Symposium in Paris, suggest that air pollution can trigger lung cancer in people with no history of smoking because some air pollutant particles may promote changes in cells in the airways.In particular, more exposure to airborne particulate matter or particle pollution -- at 2.
The global fight against air pollution 02:57These mutations in the EGFR and KRAS genes"may very well be the reason that the nonsmoker population ends up getting lung cancer. That's been a question we've had for a number of years: Why is it that individuals, otherwise healthy, with no relationship to secondhand smoke or primary smoking are still developing lung cancer?" Dr. Albert Rizzo, chief medical officer for the American Lung Association, told CNN on Monday.
"This mechanism may be important in other cancers with carcinogens other than air pollution," Smith wrote."The usual invisibility of current air pollution must contribute to us failing to give it the attention it deserves, but the roots of medicine's neglect of air pollution must lie with the intertwined factors of the feeling that there is nothing doctors can do about air pollution and failures of education of doctors," he wrote.
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