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Published in: Digestive Diseases and Sciences 12/2007

01-12-2007 | Original Paper

Bone Morphogenetic Protein 7 is Elevated in Patients with Chronic Liver Disease and Exerts Fibrogenic Effects on Human Hepatic Stellate Cells

Authors: Frank Tacke, Erwin Gäbele, Frauke Bataille, Robert F. Schwabe, Claus Hellerbrand, Frank Klebl, Rainer H. Straub, Tom Luedde, Michael P. Manns, Christian Trautwein, David A. Brenner, Jürgen Schölmerich, Bernd Schnabl

Published in: Digestive Diseases and Sciences | Issue 12/2007

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Abstract

Hepatic stellate cells (HSCs) are the main extracellular matrix (ECM)-producing cells in liver fibrogenesis. The excessive synthesis of ECM proteins deteriorates hepatic architecture and results in liver fibrosis and cirrhosis. This study investigated the role of bone morphogenetic protein 7 (BMP7) as a member of the transforming growth factor (TGF)-ß superfamily in chronic liver disease. Plasma levels of BMP7 were significantly elevated in patients with chronic liver disease compared with healthy controls. Immunohistochemistry of cirrhotic human liver demonstrated upregulated BMP7 protein expression in hepatocytes as compared with normal human liver. Because gene expression for all putative BMP7 receptors was induced during the culture activation process of primary human HSCs, we studied the effects of BMP7 on hTERT immortalized human HSCs in vitro. BMP7, as expressed and secreted after infection with adenoviruses encoding BMP7 (AdBMP7), increased proliferation of HSCs. The mRNA and protein expression of type I collagen and fibronectin was increased in BMP7-stimulated HSCs. Elevated systemic and hepatic levels of BMP7 in patients with chronic liver disease may contribute to progression of liver fibrogenesis in vivo.
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Metadata
Title
Bone Morphogenetic Protein 7 is Elevated in Patients with Chronic Liver Disease and Exerts Fibrogenic Effects on Human Hepatic Stellate Cells
Authors
Frank Tacke
Erwin Gäbele
Frauke Bataille
Robert F. Schwabe
Claus Hellerbrand
Frank Klebl
Rainer H. Straub
Tom Luedde
Michael P. Manns
Christian Trautwein
David A. Brenner
Jürgen Schölmerich
Bernd Schnabl
Publication date
01-12-2007
Publisher
Springer US
Published in
Digestive Diseases and Sciences / Issue 12/2007
Print ISSN: 0163-2116
Electronic ISSN: 1573-2568
DOI
https://doi.org/10.1007/s10620-007-9758-8

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