Robust cellular reprogramming occurs spontaneously during liver regeneration

Cellular reprogramming-the ability to interconvert distinct cell types with defined factors-is transforming the field of regenerative medicine. However, this phenomenon has rarely been observed in vivo without exogenous factors. Here, we report that activation of Notch, a signaling pathway that medi...

Full description

Saved in:
Bibliographic Details
Published in:Genes & development Vol. 27; no. 7; p. 719
Main Authors: Yanger, Kilangsungla, Zong, Yiwei, Maggs, Lara R, Shapira, Suzanne N, Maddipati, Ravi, Aiello, Nicole M, Thung, Swan N, Wells, Rebecca G, Greenbaum, Linda E, Stanger, Ben Z
Format: Journal Article
Language:English
Published: United States 01.04.2013
Subjects:
Animals
Cell Lineage
Epithelial Cells - cytology
Epithelial Cells - metabolism
Hepatocytes - cytology
Hepatocytes - metabolism
Liver Regeneration - physiology
Mice
Receptors, Notch - metabolism
Signal Transduction
Stem Cells - cytology
ISSN:1549-5477, 1549-5477
Online Access:Get more information
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:Cellular reprogramming-the ability to interconvert distinct cell types with defined factors-is transforming the field of regenerative medicine. However, this phenomenon has rarely been observed in vivo without exogenous factors. Here, we report that activation of Notch, a signaling pathway that mediates lineage segregation during liver development, is sufficient to reprogram hepatocytes into biliary epithelial cells (BECs). Moreover, using lineage tracing, we show that hepatocytes undergo widespread hepatocyte-to-BEC reprogramming following injuries that provoke a biliary response, a process requiring Notch. These results provide direct evidence that mammalian regeneration prompts extensive and dramatic changes in cellular identity under injury conditions.
Bibliography:ObjectType-Article-1
SourceType-Scholarly Journals-1
ObjectType-Feature-2
content type line 23
ISSN:1549-5477
1549-5477
DOI:10.1101/gad.207803.112