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Increased basigin in bleomycin-induced lung injury.

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Title: Increased basigin in bleomycin-induced lung injury.
Authors: Betsuyaku, Tomoko Browse this author →KAKEN DB
Kadomatsu, Kenji Browse this author
Griffin, Gail L. Browse this author
Muramatsu, Takashi Browse this author
Senior, Robert M. Browse this author
Issue Date: May-2003
Publisher: American Thoracic Society
Journal Title: American Journal of Respiratory Cell and Molecular Biology
Volume: 28
Issue: 5
Start Page: 600
End Page: 606
Publisher DOI: 10.1165/rcmb.2002-0059OC
PMID: 12707016
Abstract: Basigin is expressed in many tissues during development, including lung. It is also found on tumor cells and in wounds where it is thought to stimulate adjacent fibroblasts to produce matrix metalloproteinases. To investigate whether basigin might be expressed in fibro-inflammatory lung processes, we generated bleomycin-induced lung injury in mice. At 14 d after intratracheal bleomycin, we found basigin prominently in areas of fibrosis, alveolar macrophages, and bronchiolar epithelium, whereas it was only weakly present in bronchiolar epithelium in untreated mice. Western blots of radioimmunoprecipitation assay RIPA-insoluble fractions of bleomycin-treated lungs showed increased basigin compared with RIPA-insoluble fractions of lung from untreated mice. By quantitative reverse transcriptase-polymerase chain reaction, lung basigin mRNA was significantly increased 14 d after bleomycin, and by in situ hybridization, basigin mRNA was prominent in bronchiolar epithelium. Western blots of bronchoalveolar lavage fluid (BALF) showed various forms of basigin after bleomycin that were not present in BALF from untreated lung. These results demonstrate that bleomycin-induced lung injury is associated with increased basigin expression in bronchiolar epithelium, deposition of basigin in fibrotic sites, and increased basigin in BALF. Accordingly, basigin may play a role in diffuse alveolar injury.
Type: article
Appears in Collections:北海道大学病院 (Hokkaido University Hospital) > 雑誌発表論文等 (Peer-reviewed Journal Articles, etc)

Submitter: 別役 智子

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