Rôle clé de la COX-2 dans l'inhibiton de la prolifération des cellules étoilées du foie myofibroblastiques humaines

  • Gallois, Cyrille
Publication date
March 2001
Publisher
HAL CCSD

Abstract

Liver fibrosis is characterized by increased deposition and altered composition of extracellular matrix during chronic injury. Hepatic stellate cells play a pivotai role in the development of liver fibrosis associated with chronic liver diseases. During this process,hepatic stellate cells acquire an activated myofibroblast-like phenotype, proliferate and synthesize fibrosis components. Since accumulation of myofibroblastic hepatic stellate cells contribute to the increased deposition of extracellular matrix during chronic liver diseases, in this study, we have investigated the mechanisms that regulate proliferation ofthese cells.We show that cyclooxygenase-2, the rate-limiting enzyme in the production of prostaglandins play a central role i...

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