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PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
8
pubmed:dateCreated
2003-10-13
pubmed:abstractText
We have applied immunohistology and in situ hybridization to bronchial biopsies of patients with chronic obstructive pulmonary disease (COPD) to examine neutrophil recruitment and to determine neutrophil chemoattractant and CXC receptor (CXCR) 1 and CXCR2 gene expression associated with acute severe exacerbations. Cells were counted in endobronchial biopsies of (1) patients with COPD intubated for exacerbations (E-COPD; n = 15), (2) those with COPD in a stable phase of their disease (S-COPD; n = 7), and (3) nonsmoker surgical control subjects intubated for a nonrespiratory surgical procedure (n = 15). In comparison with the nonrespiratory surgical procedure and S-COPD groups, neutrophilia and gene expression for epithelial-derived neutrophil attractant-78 (CXCL5), interleukin-8 (CXCL8), CXCR1, and CXCR2 were each upregulated in the E-COPD group (p < 0.01); compared with the S-COPD group, by 97-, 6-, 6-, 3-, and 7-fold, respectively (p < 0.01). In E-COPD, there was a significant positive association between the number of neutrophils and CXCR2 mRNA-positive cells (r = 0.79; p < 0.01) but not between the number of neutrophils and CXCR1 mRNA-positive cells. At the time of sampling of the mucosa, there was no association between neutrophil number and either the length of intubation or viral infection. Thus, in COPD, in addition to CXCL8 and CXCR1, CXCL5 and CXCR2 appear to play important roles in the airway neutrophilia characteristic of severe exacerbations.
pubmed:grant
pubmed:commentsCorrections
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
AIM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Oct
pubmed:issn
1073-449X
pubmed:author
pubmed:issnType
Print
pubmed:day
15
pubmed:volume
168
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
968-75
pubmed:dateRevised
2007-11-15
pubmed:meshHeading
pubmed-meshheading:12857718-Acute Disease, pubmed-meshheading:12857718-Aged, pubmed-meshheading:12857718-Biopsy, pubmed-meshheading:12857718-Bronchoscopy, pubmed-meshheading:12857718-Case-Control Studies, pubmed-meshheading:12857718-Chemokine CXCL5, pubmed-meshheading:12857718-Chemokines, CXC, pubmed-meshheading:12857718-Female, pubmed-meshheading:12857718-Forced Expiratory Volume, pubmed-meshheading:12857718-Gene Expression, pubmed-meshheading:12857718-Humans, pubmed-meshheading:12857718-Immunohistochemistry, pubmed-meshheading:12857718-In Situ Hybridization, pubmed-meshheading:12857718-Inflammation, pubmed-meshheading:12857718-Interleukin-8, pubmed-meshheading:12857718-Male, pubmed-meshheading:12857718-Middle Aged, pubmed-meshheading:12857718-Neutrophil Infiltration, pubmed-meshheading:12857718-Pulmonary Disease, Chronic Obstructive, pubmed-meshheading:12857718-Receptors, Interleukin-8A, pubmed-meshheading:12857718-Receptors, Interleukin-8B, pubmed-meshheading:12857718-Respiratory Mucosa, pubmed-meshheading:12857718-Severity of Illness Index, pubmed-meshheading:12857718-Up-Regulation
pubmed:year
2003
pubmed:articleTitle
Biopsy neutrophilia, neutrophil chemokine and receptor gene expression in severe exacerbations of chronic obstructive pulmonary disease.
pubmed:affiliation
Lung Pathology, Department of Gene Therapy, Imperial College, Royal Brompton Hospital, London, United Kingdom.
pubmed:publicationType
Journal Article, Research Support, U.S. Gov't, P.H.S., Research Support, Non-U.S. Gov't