Document Detail

Increased expression of 11 beta-hydroxysteroid dehydrogenase type 2 in the lungs of patients with acute respiratory distress syndrome.
MedLine Citation:
PMID:  14629298     Owner:  NLM     Status:  MEDLINE    
We examined the immunohistochemical distribution of 11 beta-hydroxysteroid dehydrogenase type 2 (11 beta-HSD2), the enzyme responsible for the conversion of bioactive glucocorticoids to their receptor-inactive forms, in lung tissue obtained at autopsy from 14 patients who had died due to acute respiratory distress syndrome (ARDS). We found positive immunoreactivity for 11 beta-HSD2 in 13 cases. The cells expressing 11 beta-HSD2 in the alveolar wall were positive for surfactant apoprotein-A as well as cytokeratin. Immunoreactivity for 11 beta-HSD2 was also detected in the CD68+ cells, which were found in the alveolar spaces. All patients had been treated with glucocorticoids for ARDS and/or the underlying diseases. There was no statistically significant correlation between the use of glucocorticoids and 11 beta-HSD2 immunoreactivity in the alveolar wall (P = 0.0729). However, expression of grade + + was found in three out of five patients who received dexamethasone pulse therapy at relatively large doses, as well as in three other patients treated with prednisolone for a long period of time for the underlying disease. An increase in the expression of 11 beta-HSD2 may result in faster glucocorticoid breakdown in lung cells in patients with ARDS. Impaired glucocorticoid availability in the lungs of such patients may explain, in part, the fact that glucocorticoid therapy does not always rescue patients with ARDS.
Satoshi Suzuki; Hiroyoshi Tsubochi; Hironori Ishibashi; Takashi Suzuki; Takashi Kondo; Hironobu Sasano
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  Pathology international     Volume:  53     ISSN:  1320-5463     ISO Abbreviation:  Pathol. Int.     Publication Date:  2003 Nov 
Date Detail:
Created Date:  2003-11-21     Completed Date:  2004-07-28     Revised Date:  2004-11-17    
Medline Journal Info:
Nlm Unique ID:  9431380     Medline TA:  Pathol Int     Country:  Australia    
Other Details:
Languages:  eng     Pagination:  751-6     Citation Subset:  IM    
Department of Thoracic Surgery, Institute of Development, Aging and Cancer, Tohoku University School of Medicine, Sendai, Japan.
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MeSH Terms
11-beta-Hydroxysteroid Dehydrogenase Type 2 / biosynthesis*
Aged, 80 and over
Lung / enzymology*,  pathology
Middle Aged
Respiratory Distress Syndrome, Adult / enzymology,  pathology*
Reg. No./Substance:
EC Dehydrogenase Type 2

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