Linked Life Data

18508823

Source:http://linkedlifedata.com/resource/pubmed/id/18508823

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
3
pubmed:dateCreated
2008-9-1
pubmed:abstractText
Mechanisms other than classical alloimmunity are implicated in the pathogenesis of bronchiolitis obliterans syndrome (BOS). It was hypothesised that antimicrobial peptides (AMPs), elements of the innate immune response, have a role in BOS pathogenesis. Pulmonary expression of the neutrophil-derived AMPs human cathelicidin (hCAP)-18/LL-37 and alpha-defensins (human neutrophil peptides (HNP) 1-3), and the epithelial cell-derived AMPs human beta-defensin (hBD)-2, elafin and secretory leukoprotease inhibitor (SLPI) were measured in stable lung transplant recipients and those with BOS. The relationship between airway pathogens and AMP levels was examined. Bronchoalveolar lavage (BAL) was performed on 44 lung transplant recipients (30 stable, 14 with BOS). BAL was cultured for pathogens and ELISA for AMPs was performed. The presence of airway pathogens was associated with significantly increased levels of neutrophil-derived and epithelial-derived AMPs. When patients without pathogens in BAL fluid were analysed, eight recipients with BOS had elevated hCAP-18/LL-37 and HNP 1-3 compared with 25 stable recipients. hBD-2 and elafin levels were comparable in BOS and stable recipients, but SLPI levels were reduced in BOS. Bronchiolitis obliterans syndrome is associated with elevated airway human cathelicidin 18/LL-37 and human neutrophil peptides 1-3 from activated neutrophils, even in the absence of pathogens. Together with reduced airway secretory leukoprotease inhibitor this may favour nonalloimmune airway injury with reduced antiprotease defence and increased neutrophil degranulation.
pubmed:grant
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Sep
pubmed:issn
1399-3003
pubmed:author
pubmed:issnType
Electronic
pubmed:volume
32
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
670-7
pubmed:meshHeading
pubmed:year
2008
pubmed:articleTitle
Antimicrobial peptides in lung transplant recipients with bronchiolitis obliterans syndrome.
pubmed:affiliation
Cardiopulmonary Transplant Unit, Freeman Hospital, Institute of Cellular Medicine Newcastle University, Newcastle upon Tyne, UK. R.Anderson@lumc.nl
pubmed:publicationType
Journal Article, Research Support, Non-U.S. Gov't