Factor VII activating protease (FSAP) exerts anti-inflammatory and anti-fibrotic effects in liver fibrosis in mice and men
| Autor: | Ralf Weiskirchen, Henning W. Zimmermann, Andreas Bosio, Sandip M. Kanse, Nikolaus Gassler, Frank Tacke, Erawan Borkham-Kamphorst, Ute Bissels |
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| Rok vydání: | 2013 |
| Předmět: |
Adult
Liver Cirrhosis Male Chemokine Adolescent Mice Transgenic Inflammation Polymorphism Single Nucleotide Hepatitis Mice Young Adult Liver disease Chemokine receptor chemistry.chemical_compound Fibrosis medicine Animals Humans RNA Messenger Aged Liver injury Mice Inbred BALB C Hepatology Factor VII biology Serine Endopeptidases Middle Aged medicine.disease Enzyme Activation Disease Models Animal Liver chemistry Immunology Hepatic stellate cell Cancer research biology.protein Female medicine.symptom Transcriptome |
| Zdroj: | Journal of Hepatology. 58:104-111 |
| ISSN: | 0168-8278 |
| DOI: | 10.1016/j.jhep.2012.09.007 |
| Popis: | Background & Aims Factor VII activating protease (FSAP) is a circulating serine protease produced in the liver. A single nucleotide polymorphism (G534E, Marburg I, MI-SNP) in the gene encoding FSAP ( HABP2 ) leads to lower enzymatic activity and is associated with enhanced liver fibrosis in humans. FSAP is activated by damaged cells and its substrates include growth factors and hemostasis proteins. Methods We have investigated the progression of liver fibrosis in FSAP deficient mice and FSAP expression in human liver fibrosis. Results Serum FSAP concentrations declined in patients with end-stage liver disease, and hepatic FSAP expression was decreased in patients with advanced liver fibrosis and liver inflammation. Moreover, there was an inverse correlation between hepatic FSAP expression and inflammatory chemokines, chemokine receptors as well as pro-fibrotic mediators. Upon experimental bile duct ligation, FSAP −/− mice showed enhanced liver fibrosis in comparison to wild type mice, alongside increased expression of α-smooth muscle actin, collagen type I and fibronectin that are markers of stellate cell activation. Microarray analyses indicated that FSAP modulates inflammatory pathways. Conclusions Lower FSAP expression is associated with enhanced liver fibrosis and inflammation in patients with chronic hepatic disorders and murine experimental liver injury. This strengthens the concept that FSAP is a "protective factor" in liver fibrosis and explains why carriers of the Marburg I SNP have more pronounced liver fibrosis. |
| Databáze: | OpenAIRE |
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