Cirrhosis represents a major health issue for which no effective treatment is available so far, except liver transplantation, hardly accessible for patients because of a growing organ shortage. Stem cell therapy is emerging based on their hepatocyte differentiation potential and immunomodulatory properties. The purpose of this thesis is to evaluate the anti-fibrotic properties of Adult Derived Human Liver Stem/progenitor Cells (ADHLSC) both in vitro and in vivo. We firstly established that ADHLSC express and secrete several anti-fibrotic molecules such as HGF, as compared to human hepatic stellate cells (HSC). As HSC activation is a key element in fibrosis induction, we demonstrated that ADHLSC, upon co-culture conditions, inhibit HSC proliferation and collagen secretion. ADHLSC also induce HSC secretion of anti-fibrotic molecules including HGF and MMP. Finally, we demonstrated that ADHLSC transplantation reduces liver fibrosis in an animal model of chemically induced liver fibrosis.
Berardis, S. (2014). Evaluation of the anti-fibrotic properties of adult-derived human liver stem/progenitor cells. https://hdl.handle.net/2078.5/195188