Article (Scientific journals)
Tissue-specific induction of ADAMTS2 in monocytes and macrophages by glucocorticoids.
Hofer, Thomas P J; Frankenberger, Marion; Mages, Jorg et al.
2008In Journal of Molecular Medicine, 86 (3), p. 323-32
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Keywords :
ADAM Proteins/genetics/metabolism; Animals; Blotting, Western; Cattle; Cell Line; Gene Expression Regulation/drug effects; Humans; Leukocytes, Mononuclear/drug effects/enzymology; Macrophages/drug effects/enzymology; Methylprednisolone/pharmacology; Mifepristone/pharmacology; Monocytes/drug effects/enzymology; Organ Specificity/drug effects; RNA, Messenger/genetics/metabolism; Receptors, Glucocorticoid/metabolism
Abstract :
[en] The regulated expression of ADAMTS2 (a disintegrin and metalloproteinase with thrombospondin motifs), a secreted metalloproteinase involved in the processing of procollagen to collagen, was studied in peripheral blood mononuclear cells (PBMC). Stimulation with glucocorticoids (GC) resulted in a pronounced dose- and time-dependent increase of ADAMTS2 mRNA levels in PBMC. The increase of ADAMTS2 expression was specific for CD14++ monocytes (440-fold) and alveolar macrophages (200-fold), whereas CD3+ (T lymphocytes), phytohemagglutinin-activated CD3+ (T lymphocytes), and CD19+ (B lymphocytes) showed no significant changes in ADAMTS2 mRNA after GC treatment. Treatment of monocyte-derived macrophages (MDM) with GC also resulted in an increase of ADAMTS2 protein in the culture tissue media. Using the GC analog RU486, GC-mediated induction of ADAMTS2 mRNA was blocked, implicating that GC acts specifically via the GC-receptor. In agreement with findings in blood monocytes, cell lines of the monocytic lineage (MM6, THP-1) showed significant GC-induced significant increases in ADAMTS2 mRNA, while in epithelial cells (A549, Calu-3, Colo320, BT-20) and fibroblast (MRC-5, WI-38, and two NHDF-c cell types from adult cheek and upper arm), they showed no or little responsiveness to GC. As macrophages have important functions in immune defense and tissue homeostasis, these findings suggest that GC-mediated specific induction of ADAMTS2 in these cells may play a crucial role in the resolution of inflammation and wound repair.
Disciplines :
Biochemistry, biophysics & molecular biology
Author, co-author :
Hofer, Thomas P J;  GSF Nat Res Center for Envir & Health - München-Gauting, Germany > Clin Coop Group Inflamm Lung Diseases
Frankenberger, Marion;  GSF Nat Res Center for Envir & Health - München-Gauting, Germany > Clin Coop Group Inflamm Lung Diseases
Mages, Jorg;  Technical University of Munich, Institute for Med Microbiol, Immunol and Hygiene
Lang, Roland;  Technical University of Munich, Institute for Med Microbiol, Immunol and Hygiene
Meyer, Peter
Hoffmann, Reinhard;  Technical University of Munich, Institute for Med Microbiol, Immunol and Hygiene
Colige, Alain ;  Université de Liège - ULiège > Département des sciences biomédicales et précliniques > Laboratoire des tissus conjonctifs
Ziegler-Heitbrock, Loms;  GSF Nat Res Center for Envir & Health - München-Gauting, Germany > Clin Coop Group Inflamm Lung Diseases
Language :
English
Title :
Tissue-specific induction of ADAMTS2 in monocytes and macrophages by glucocorticoids.
Publication date :
2008
Journal title :
Journal of Molecular Medicine
ISSN :
0946-2716
eISSN :
1432-1440
Publisher :
Springer International, Berlin, Germany
Volume :
86
Issue :
3
Pages :
323-32
Peer reviewed :
Peer Reviewed verified by ORBi
Available on ORBi :
since 19 February 2010

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