Abstract
Liver fibrosis is a worldwide clinical issue. Activation of hepatic stellate cells (HSCs) is the central event during liver fibrosis. We investigated the role of SATB1 in HSC activation and liver fibrogenesis. The results show that SATB1 expression is reduced during HSC activation. Additionally, SATB1 inhibits HSC activation, proliferation, migration, and collagen synthesis. Furthermore, CTGF, a pro-fibrotic agent, is also significantly inhibited by SATB1 through the Ras/Raf-1/MEK/ERK/Ets-1 pathway. In vivo, SATB1 deactivates HSCs and attenuates fibrosis in TAA-induced fibrotic rat livers. These data indicate that SATB1 plays an important role in HSC activation and liver fibrosis.
Keywords:
Hepatic stellate cell; Liver fibrosis; Ras/Raf-1/MEK/ERK/Ets-1; SATB1.
Copyright © 2015 Federation of European Biochemical Societies. Published by Elsevier B.V. All rights reserved.
Publication types
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Research Support, Non-U.S. Gov't
MeSH terms
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Actins / genetics
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Actins / metabolism
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Animals
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Cell Line
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Cell Movement
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Cell Proliferation
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Cells, Cultured
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Collagen / biosynthesis
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Connective Tissue Growth Factor / antagonists & inhibitors
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Connective Tissue Growth Factor / genetics
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Connective Tissue Growth Factor / metabolism
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Disease Models, Animal*
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Gene Expression Regulation*
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Gene Silencing
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Hepatic Stellate Cells / metabolism*
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Hepatic Stellate Cells / pathology
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Homeodomain Proteins / antagonists & inhibitors
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Homeodomain Proteins / genetics
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Homeodomain Proteins / metabolism*
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Humans
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Liver Cirrhosis / metabolism*
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Liver Cirrhosis / pathology
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MAP Kinase Signaling System
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Male
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Matrix Attachment Region Binding Proteins / antagonists & inhibitors
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Matrix Attachment Region Binding Proteins / genetics
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Matrix Attachment Region Binding Proteins / metabolism*
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Random Allocation
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Rats, Sprague-Dawley
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Recombinant Proteins / chemistry
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Recombinant Proteins / metabolism
Substances
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Actins
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CCN2 protein, rat
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Homeodomain Proteins
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Matrix Attachment Region Binding Proteins
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Recombinant Proteins
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SATB1 protein, human
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SATB1 protein, rat
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smooth muscle actin, rat
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Connective Tissue Growth Factor
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Collagen