Document Detail


Continuous cell supply from a Sox9-expressing progenitor zone in adult liver, exocrine pancreas and intestine.
MedLine Citation:
PMID:  21113154     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
The liver and exocrine pancreas share a common structure, with functioning units (hepatic plates and pancreatic acini) connected to the ductal tree. Here we show that Sox9 is expressed throughout the biliary and pancreatic ductal epithelia, which are connected to the intestinal stem-cell zone. Cre-based lineage tracing showed that adult intestinal cells, hepatocytes and pancreatic acinar cells are supplied physiologically from Sox9-expressing progenitors. Combination of lineage analysis and hepatic injury experiments showed involvement of Sox9-positive precursors in liver regeneration. Embryonic pancreatic Sox9-expressing cells differentiate into all types of mature cells, but their capacity for endocrine differentiation diminishes shortly after birth, when endocrine cells detach from the epithelial lining of the ducts and form the islets of Langerhans. We observed a developmental switch in the hepatic progenitor cell type from Sox9-negative to Sox9-positive progenitors as the biliary tree develops. These results suggest interdependence between the structure and homeostasis of endodermal organs, with Sox9 expression being linked to progenitor status.
Authors:
Kenichiro Furuyama; Yoshiya Kawaguchi; Haruhiko Akiyama; Masashi Horiguchi; Sota Kodama; Takeshi Kuhara; Shinichi Hosokawa; Ashraf Elbahrawy; Tsunemitsu Soeda; Masayuki Koizumi; Toshihiko Masui; Michiya Kawaguchi; Kyoichi Takaori; Ryuichiro Doi; Eiichiro Nishi; Ryosuke Kakinoki; Jian Min Deng; Richard R Behringer; Takashi Nakamura; Shinji Uemoto
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Publication Detail:
Type:  Journal Article; Research Support, N.I.H., Extramural; Research Support, Non-U.S. Gov't     Date:  2010-11-28
Journal Detail:
Title:  Nature genetics     Volume:  43     ISSN:  1546-1718     ISO Abbreviation:  Nat. Genet.     Publication Date:  2011 Jan 
Date Detail:
Created Date:  2011-01-10     Completed Date:  2011-02-22     Revised Date:  2011-05-20    
Medline Journal Info:
Nlm Unique ID:  9216904     Medline TA:  Nat Genet     Country:  United States    
Other Details:
Languages:  eng     Pagination:  34-41     Citation Subset:  IM    
Affiliation:
Department of Surgery, Kyoto University Graduate School of Medicine, Kyoto, Japan.
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MeSH Terms
Descriptor/Qualifier:
Animals
Cell Differentiation
Epithelial Cells / cytology,  metabolism
Intestines / cytology,  metabolism*
Liver / cytology,  metabolism*
Mice
Mice, Knockout
Pancreas / cytology,  metabolism*
SOX9 Transcription Factor / genetics,  metabolism*
Stem Cells / cytology,  metabolism*
Chemical
Reg. No./Substance:
0/SOX9 Transcription Factor; 0/Sox9 protein, mouse
Comments/Corrections
Comment In:
Nat Genet. 2011 Jan;43(1):9-10   [PMID:  21217637 ]
Hepatology. 2011 Apr;53(4):1393-6   [PMID:  21480343 ]

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