Why is this bad for the smoker's lung?

Gene linked to some smokers’ lung cancer?

• Acquired defects in the FGFR1 gene could play a role in malignancies, study finds An overproduced receptor protein that shows up in a subset of lung cancers may offer a target of opportunity for new drugs and a glimmer of hope for some patients, researchers report. Excess amounts of a protein known as FGFR1, or fibroid growth factor receptor 1, often show up in smokers who develop a hard-to-treat form of lung cancer, suggesting that tobacco smoke exposure damages the gene encoding this protein and steers cells toward cancer in some people. Researchers report the findings in the Dec. 15 Science Translational Medicine http://feelsynapsis.com/pg/blog/read/29558/gene-linked-to-some-smokers-lung-cancer

• Answer:

  cool study, but this is not really a question and does not belong on yahoo answers.