Document Detail


The effect of activated alveolar macrophages on experimental lung emphysema development. I. Protease and antiprotease activities in the culture medium of alveolar macrophages.
MedLine Citation:
PMID:  8834614     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
Aim of the present study was to evaluate cathepsin D, base protease, antiplasmin, antitrypsin and antichymotrypsin activities and protein content in the 24h culture medium of the alveolar macrophages (AM) deriving from the rats treated BCG-vaccine and from rats with papain-induced emphysema. In the culture medium of cells isolated from the rats which were given BCG or papain and BCG+papain we observed an increase of base protease activity and a decrease of cathepsin D activity comparing with control group. Increased antitrypsin activity in BCG and BCG+papain-treated rats and decreased antitrypsin activity in papain-treated rats were observed. There were not significant differences in antiplasmin and antichymotrypsin activities between examined groups. The obtained results indicate that activated pulmonary macrophages are one of the sources of the protease-antiprotease intraalveolar imbalance. However, increased production of proteolytic enzymes may not be the only factor responsible for the progression of lung emphysema in BCG-treated rats.
Authors:
S Sulkowski; E Skrzydlewska; M Sulkowska; K Worowski; L Chyczewski; J Dziecioł; W Famulski; Z Kozielec
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  Roczniki Akademii Medycznej w Białymstoku (1995)     Volume:  40     ISSN:  -     ISO Abbreviation:  Rocz. Akad. Med. Bialymst.     Publication Date:  1995  
Date Detail:
Created Date:  1996-12-04     Completed Date:  1996-12-04     Revised Date:  2003-11-14    
Medline Journal Info:
Nlm Unique ID:  9515551     Medline TA:  Rocz Akad Med Bialymst     Country:  POLAND    
Other Details:
Languages:  eng     Pagination:  308-15     Citation Subset:  IM    
Affiliation:
Department of Pathological Anatomy, Medical Academy of Białystok.
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MeSH Terms
Descriptor/Qualifier:
Animals
BCG Vaccine / therapeutic use
Bronchoalveolar Lavage Fluid / cytology
Cathepsin D / metabolism
Cells, Cultured
Chymotrypsin / metabolism
Emphysema / chemically induced,  enzymology*,  therapy
Endopeptidases / metabolism*
Macrophages, Alveolar / enzymology*,  pathology
Male
Papain
Protease Inhibitors / metabolism*
Rats
Rats, Wistar
Trypsin / metabolism
Chemical
Reg. No./Substance:
0/BCG Vaccine; 0/Protease Inhibitors; EC 3.4.-/Endopeptidases; EC 3.4.21.1/Chymotrypsin; EC 3.4.21.4/Trypsin; EC 3.4.22.2/Papain; EC 3.4.23.5/Cathepsin D

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine


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