lower airway colonization and inflammatory response in copd: a focus on haemophilus influenzae

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ID: 204350
2014
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Abstract
Lydia J Finney,1 Andrew Ritchie,1 Elizabeth Pollard,2 Sebastian L Johnston,1 Patrick Mallia1 1Airway Disease Infection Section, National Heart and Lung Institute, Imperial College, London, United Kingdom; 2King's College London, London, United Kingdom Abstract: Bacterial infection of the lower respiratory tract in chronic obstructive pulmonary disease (COPD) patients is common both in stable patients and during acute exacerbations. The most frequent bacteria detected in COPD patients is Haemophilus influenzae, and it appears this organism is uniquely adapted to exploit immune deficiencies associated with COPD and to establish persistent infection in the lower respiratory tract. The presence of bacteria in the lower respiratory tract in stable COPD is termed colonization; however, there is increasing evidence that this is not an innocuous phenomenon but is associated with airway inflammation, increased symptoms, and increased risk for exacerbations. In this review, we discuss host immunity that offers protection against H. influenzae and how disturbance of these mechanisms, combined with pathogen mechanisms of immune evasion, promote persistence of H. influenzae in the lower airways in COPD. In addition, we examine the role of H. influenzae in COPD exacerbations, as well as interactions between H. influenzae and respiratory virus infections, and review the role of treatments and their effect on COPD outcomes. This review focuses predominantly on data derived from human studies but will refer to animal studies where they contribute to understanding the disease in humans. Keywords: chronic obstructive pulmonary disease, Haemophilus influenzae, nontypeable Haemophilus influenzae, respiratory viruses, vaccination
Reference Key
lj2014internationallower Use this key to autocite in the manuscript while using SciMatic Manuscript Manager or Thesis Manager
Authors ;Finney LJ;Ritchie A;Pollard E;Johnston SL;Mallia P
Journal tijdschrift voor geneeskunde
Year 2014
DOI
DOI not found
URL
http://www.dovepress.com/lower-airway-colonization-and-inflammatory-response-in-copd-a-focus-on-peer-reviewed-article-COPD
Keywords
diseases of the respiratory system

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