摘要: Lung cancer is one of the leading causes death all over world. Although it known that genetic and epigenetic susceptibility factors play a role in determining individual risk developing lung cancer, genetically determined host occupational exposure-related poorly explored. Gene variants might affect to fall into three categories: rare-risk, moderate-risk, common low-risk variants. Most for likely involve several genes last two categories. Such have mostly been tested on candidate gene basis. However, during recent years genome-wide association studies provided an alternative these studies. This chapter presents nowadays most commonly used approaches main results they produced regarding cancer.