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Int. J. Mol. Sci. 2012, 13(12), 16853-16864; doi:10.3390/ijms131216853

DNA Damage Due to Oxidative Stress in Chronic Obstructive Pulmonary Disease (COPD)

1
Laboratory of Molecular and Cellular Pulmonology, Medical School, University of Crete, Crete 71110, Greece
2
Department of Thoracic Medicine, University Hospital of Heraklion, Crete 71110, Greece
*
Author to whom correspondence should be addressed.
Received: 28 September 2012 / Revised: 31 October 2012 / Accepted: 19 November 2012 / Published: 10 December 2012
(This article belongs to the Special Issue DNA Damage and Repair in Degenerative Diseases)
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Abstract

According to the American Thorasic Society (ATS)/European Respiratory Society (ERS) Statement, chronic obstructive pulmonary disease (COPD) is defined as a preventable and treatable disease with a strong genetic component, characterized by airflow limitation that is not fully reversible, but is usually progressive and associated with an enhanced inflammatory response of the lung to noxious particles or gases. The main features of COPD are chronic inflammation of the airways and progressive destruction of lung parenchyma and alveolar structure. The pathogenesis of COPD is complex due to the interactions of several mechanisms, such as inflammation, proteolytic/antiproteolytic imbalance, oxidative stress, DNA damage, apoptosis, enhanced senescence of the structural cells and defective repair processes. This review focuses on the effects of oxidative DNA damage and the consequent immune responses in COPD. In susceptible individuals, cigarette smoke injures the airway epithelium generating the release of endogenous intracellular molecules or danger-associated molecular patterns from stressed or dying cells. These signals are captured by antigen presenting cells and are transferred to the lymphoid tissue, generating an adaptive immune response and enhancing chronic inflammation. View Full-Text
Keywords: chronic bronchitis; emphysema; oxidative stress; DNA damage; Microsatellite DNA; 8-OHdG; DNA repair chronic bronchitis; emphysema; oxidative stress; DNA damage; Microsatellite DNA; 8-OHdG; DNA repair
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MDPI and ACS Style

Neofytou, E.; Tzortzaki, E.G.; Chatziantoniou, A.; Siafakas, N.M. DNA Damage Due to Oxidative Stress in Chronic Obstructive Pulmonary Disease (COPD). Int. J. Mol. Sci. 2012, 13, 16853-16864.

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