Reactive oxygen species, inflammation, and lung diseases.

Abstract:

:Reactive oxygen species (ROS) are well recognized for playing a dual role as both deleterious and beneficial species. ROS are products of normal cellular metabolism and under physiological conditions, participate in maintenance of cellular 'redox homeostasis. Overproduction of ROS, results in oxidative stress. Oxidative stress is a deleterious process that leads to lung damage and consequently to various disease states. The lung is a highly specialized organ that facilitates uptake of oxygen and release of carbon dioxide. Persistent inhalation of the invading pathogens or toxic agents may result in overwhelming production of ROS. Oxidants initiate a number of pathologic processes, including inflammation of the airways, which may contribute to the pathogenesis and/or exacerbation of airways disease. During inflammation, enhanced ROS production may induce recurring DNA damage, inhibition of apoptosis, and activation of protooncogenes by initiating signal transduction pathways. Therefore, it is conceivable that chronic inflammation-induced production of ROS in the lung may predispose individuals to lung diseases. In this review, we discuss mechanisms of oxidant stress in the lung, the role of oxidants in lung disease pathogenesis and exacerbation.

journal_name

Curr Pharm Des

authors

Rosanna DP,Salvatore C

doi

10.2174/138161212802083716

subject

Has Abstract

pub_date

2012-01-01 00:00:00

pages

3889-900

issue

26

eissn

1381-6128

issn

1873-4286

pii

CPD-EPUB-20120522-12

journal_volume

18

pub_type

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