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PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
1-3
pubmed:dateCreated
2007-5-14
pubmed:abstractText
Acute respiratory distress syndrome (ARDS) confers high morbidity, and in part due to pulmonary fibrosis. The 47-kDa heat shock protein 47 (HSP 47) is a collagen-specific molecular chaperone that has been shown to play a major role in the processing and secretion of procollagen. We examined the effect of antisense oligonucleotides against HSP 47 in Wistar rats with lipopolysaccharide (LPS)-induced pulmonary fibrosis. These rats expressed heat shock protein (HSP) 47 and collagen in response to LPS. The distribution of HSP 47 was similar to that of collagen, and all control rats displayed pulmonary fibrosis after intratracheal administration of 20 mg/kg LPS alone. Antisense oligonucleotides (100 nmol/kg dissolved in saline) were administered with the LPS among experimental subjects. Subsequent immunoblot analysis confirmed the inhibition of HSP 47 by the administration of antisense oligonucleotides. The oligonucleotides significantly improved pulmonary fibrosis among those rats administered LPS, but the oligonucletides themselves did not produce any significant changes in the behavior or histology of the lungs among control rats. These findings suggest that HSP 47 antisense oligonucleotides improve lung fibrosis among rats with LPS-induced pneumopathy.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Jun
pubmed:issn
0014-2999
pubmed:author
pubmed:issnType
Print
pubmed:day
14
pubmed:volume
564
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
174-80
pubmed:meshHeading
pubmed:year
2007
pubmed:articleTitle
Introduction of antisense oligonucleotides to heat shock protein 47 prevents pulmonary fibrosis in lipopolysaccharide-induced pneumopathy of the rat.
pubmed:affiliation
Department of Brain and Nerve Science, Anesthesiology, Oita University Faculty of Medicine, 1-1 Idaigaoka-Hasamamachi, Yufu City, Oita 879-5593, Japan. saku@med.oita-u.ac.jp
pubmed:publicationType
Journal Article