Matrix metalloproteinases induce extracellular matrix degradation through various pathways to alleviate hepatic fibrosis - 28/03/23


Abstract |
Liver fibrosis is the common consequence of various chronic liver injuries and is mainly characterized by the imbalance between the production and degradation of extracellular matrix, which leads to the accumulation of interstitial collagen and other matrix components. Matrix metalloproteinases (MMPs) and their specific inhibitors, that is, tissue inhibitors of metalloproteinases (TIMPs), play a crucial role in collagen synthesis and lysis. Previous in vivo and in vitro studies of our laboratory found repressing extracellular matrix (ECM) accumulation by restoring the balance between MMPs and TIMPs can alleviate liver fibrosis. We conducted a review of articles published in PubMed and Science Direct in the last decade until February 1, 2023, which were searched for using these words “MMPs/TIMPs” and “Hepatic Fibrosis.” Through a literature review, this article reviews the experimental studies of liver fibrosis based on MMPs/TIMPs, summarizes the components that may exert an anti-liver fibrosis effect by affecting the expression or activity of MMPs/TIMPs, and attempts to clarify the mechanism of MMPs/TIMPs in regulating collagen homeostasis, so as to provide support for the development of anti-liver fibrosis drugs. We found the MMP-TIMP-ECM interaction can result in better understanding of the pathogenesis and progression of hepatic fibrosis from a different angle, and targeting this interaction may be a promising therapeutic strategy for hepatic fibrosis. Additionally, we summarized and analyzed the drugs that have been found to reduce liver fibrosis by changing the ratio of MMPs/TIMPs, including medicine natural products.
Le texte complet de cet article est disponible en PDF.Graphical Abstract |
Various factors stimulate the liver and induce the activation of HSCs to release various collagens, which are components of ECM. Long-term accumulation of a large amount of collagens leads to hepatic fibrosis. MMPs and TIMPs are in physiological equilibrium in the normal liver. MMPs degrade various kinds of extracellular collagen to relieve hepatic fibrosis, and TIMPs inhibit its activity by hydrolyzing MMP. MMPs alleviate hepatic fibrosis by directly hydrolyzing various extracellular collagens. In addition, various cytokines produced after degradation of ECM activate the immune system and indirectly inhibit hepatic fibrosis. Therefore, MMPs/TIMPs inhibit hepatic fibrosis by regulating ECM.
Various factors stimulate the liver and induce the activation of HSCs to release various collagens, which are components of ECM. Long-term accumulation of a large amount of collagens leads to hepatic fibrosis. MMPs and TIMPs are in physiological equilibrium in the normal liver. MMPs degrade various kinds of extracellular collagen to relieve hepatic fibrosis, and TIMPs inhibit its activity by hydrolyzing MMP. MMPs alleviate hepatic fibrosis by directly hydrolyzing various extracellular collagens. In addition, various cytokines produced after degradation of ECM activate the immune system and indirectly inhibit hepatic fibrosis. Therefore, MMPs/TIMPs inhibit hepatic fibrosis by regulating ECM.ga1Le texte complet de cet article est disponible en PDF.
Highlights |
• | Previous studies found restoring balance of MMPs/TIMPs alleviate hepatic fibrosis. |
• | Recent studies found MMPs degradating ECM play an anti-fibrosis role. |
• | Degradating ECM and induction immune system activation inhibit hepatic fibrosis. |
Keywords : Matrix metalloproteinase, Tissue inhibitors of metalloproteinase, Extracellular matrix, Collagen, Immunoregulation, Hepatic fibrosis
Plan
Vol 161
Article 114472- mai 2023 Retour au numéroBienvenue sur EM-consulte, la référence des professionnels de santé.
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