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Conversion of Terminally Committed Hepatocytes to Culturable Bipotent Progenitor Cells With Regenerative Capacity

Conversion of Terminally Committed Hepatocytes to Culturable Bipotent Progenitor Cells With Regenerative Capacity

Takeshi Katsuda, Masaki Kawamata, Keitaro Hagiwara, Ryou-U Takahashi, Yusuke Yamamoto, Fernando D Camargo, Takahiro Ochiya

Cell Stem Cell. 2017 Jan 5;20(1):41-55.

PMID: 27840021

Abstract:

A challenge for advancing approaches to liver regeneration is loss of functional differentiation capacity when hepatocyte progenitors are maintained in culture. Recent lineage-tracing studies have shown that mature hepatocytes (MHs) convert to an immature state during chronic liver injury, and we investigated whether this conversion could be recapitulated in vitro and whether such converted cells could represent a source of expandable hepatocytes. We report that a cocktail of small molecules, Y-27632, A-83-01, and CHIR99021, can convert rat and mouse MHs in vitro into proliferative bipotent cells, which we term chemically induced liver progenitors (CLiPs). CLiPs can differentiate into both MHs and biliary epithelial cells that can form functional ductal structures. CLiPs in long-term culture did not lose their proliferative capacity or their hepatic differentiation ability, and rat CLiPs were shown to extensively repopulate chronically injured liver tissue. Thus, our study advances the goals of liver regenerative medicine.

Chemicals Related in the Paper:

Catalog Number	Product Name	Structure	CAS Number	Price
AP252917069-A	CHIR99021		252917-06-9	Price
AP909910436	A 83-01		909910-43-6	Price

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