Scientists have found how air pollution causes lung cancer in non-smokers

(ORDO NEWS) —  A new study has shown how air pollution causes lung cancer in non-smokers.

Exhaust fumes cause tumors in the same way that cigarettes do. Now scientists have identified the mechanism by which this happens.

Tiny particles known as PM2.5 are emitted when fossil fuels are burned. They enter the blood through the lungs, causing inflammation.

An increase in their concentration was associated with non-small cell lung cancer, the most common form of the disease.

Scientists have found that PM2.5 particles promote rapid changes in airway cells that have mutations in the EGFR gene. They also touched on another KRAS gene associated with the disease.


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