Bae Jong-Myon
Department of Preventive Medicine, Jeju National University School of Medicine, Jeju, Korea.
J Prev Med Public Health. 2018 Sep;51(5):263-264. doi: 10.3961/jpmph.18.076. Epub 2018 Jul 8.
Based on epidemiological and genomic characteristics, lung cancer in never smokers (LCNS) is a different disease from lung cancer in smokers. Based on current research, the main risk factor for LCNS may be air pollution. A recent case-control study in Koreans reported that nitrogen dioxide (NO2) may be a risk factor for LCNS. Additionally, a cohort study showed that exposure to NO2 was associated with significant hypomethylation. Thus, epigenetic epidemiology studies are needed in the near future to evaluate the carcinogenesis of LCNS according to chronic exposure to air pollution and/or viral infections.
基于流行病学和基因组特征,从不吸烟者的肺癌(LCNS)与吸烟者的肺癌是不同的疾病。根据目前的研究,LCNS的主要风险因素可能是空气污染。最近一项针对韩国人的病例对照研究报告称,二氧化氮(NO2)可能是LCNS的一个风险因素。此外,一项队列研究表明,接触NO2与显著的低甲基化有关。因此,在不久的将来需要进行表观遗传流行病学研究,以评估长期暴露于空气污染和/或病毒感染下LCNS的致癌作用。