TGFβ Signaling in Liver Regeneration

Author(s): Sofia Karkampouna, Peter ten Dijke, Steven Dooley, Marianna Kruithof-de Julio

Journal Name: Current Pharmaceutical Design

Volume 18 , Issue 27 , 2012

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Adult organ regeneration occurs in many systems such as in liver, skin, intestine and heart, indicating that postnatal life is not a static or quiescent state but a dynamic and complex process. The liver is a spectacular organ, exhibiting high regenerative capacity crucial for homeostasis and tissue repair: injuries induced mechanically or chemically, can be completely restored. Regeneration involves extensive cell division, inflammation and extracellular matrix remodeling processes. At the molecular level, one of the key mediators of regeneration response is the secreted cytokine transforming growth factor-β (TGFβ). TGFβ is a profibrogenic and anti-proliferative protein with pleiotropic functions depending on the cellular context. In this review, we discuss the role of TGFβ in the development of the liver and in adult liver regeneration, with particular emphasis on its role in regulation of hepatocyte regeneration and in hepatic progenitor cell-induced regeneration. Finally, we give an overview of the current direction of liver research towards cell replacement therapies.

Keywords: Liver, regeneration, TGFβ, hepatocytes, hepatic progenitor cells, homeostasis, tissue repair, cell division, inflammation, extracellular matrix remodeling.

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Article Details

Year: 2012
Published on: 31 July, 2012
Page: [4103 - 4113]
Pages: 11
DOI: 10.2174/138161212802430521
Price: $65

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