Journal
FRONTIERS IN IMMUNOLOGY
Volume 13, Issue -, Pages -Publisher
FRONTIERS MEDIA SA
DOI: 10.3389/fimmu.2022.846605
Keywords
immune landscape; COPD; lung cancer; smoker; never-smoker
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Cigarette smoking is associated with COPD and lung cancer, but a portion of cases occur in non-smokers. Research has shown that immune features may contribute to the development of these diseases, independent of smoking. This article reviews the immunological aspects of lung cancer and COPD, with a focus on non-smoking related risk factors.
Cigarette smoking is reported in about one third of adults worldwide. A strong relationship between cigarette smoke exposure and chronic obstructive pulmonary disease (COPD) as well as lung cancer has been proven. However, about 15% of lung cancer cases, and between one fourth and one third of COPD cases, occur in never-smokers. The effects of cigarette smoke on the innate as well as the adaptive immune system have been widely investigated. It is assumed that certain immunologic features contribute to lung cancer and COPD development in the absence of smoking as the major risk factor. In this article, we review different immunological aspects of lung cancer and COPD with a special focus on non-smoking related risk factors.
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